cl8800 design worksheet
DESCRIPTION
Wokrsheet for designing LED driver CL8800TRANSCRIPT
CL8800 Simulator and OptimizerProject Sample Revision 1 Date 7Nov12
Worksheet Rev 2b 4SEP12
For a design guide, go to www.supertex.comFor the latest worksheet, go to www.supertex.com/pdf/datasheets/CL8800_Design_Worksheet_v1a.xls
ConditionsHelp
Supply LED List LED Temp 55 °Cfac 50 Hz
Vac (lo) 187 VRMS 0: Default () 20mA 3.20V 94Lm/WVac (nom) 220 VRMS 1: Cree CLM3C-WKW (Datasheet) 20mA 3.20V 66Lm/W
Vac (hi) 253 VRMS 2: Osram LCW JDSH EC (Datasheet) 120mA 3.20V 98Lm/WVac (max) 264 VRMS Select LED 3: Toyoda-Gosei E1SBA-YH0R6-0C (Datasheet) 20mA 2.90V 148Lm/W
4 4: Toyoda-Gosei E1SBA-YH0R6-0C (Measured) 20mA 3.08V 133Lm/WDiode Bridge missing data 5: Toyoda-Gosei E1SBA-YH046-0C (Measured) 40mA 3.10V 94Lm/W
Vd 0.65 V default used 6: Citizen CLL600-010A1-30AM1A2 (Datasheet) 80mA 3.20V 94Lm/Wsee 'LEDs' 7: LiteON LTW-M140SZS30 (Datasheet) 20mA 3.40V 88Lm/W
Transient Protection 8: Alti AT558OWPE3 (Datasheet) 20mA 3.20V 111Lm/WSeries R 55 W 9: Edison ET-3014H-1F1W (Datasheet) 30mA 2.90V 129Lm/W
Design VariablesHelp
0 Tap or Segment1 2 3 4 5 6
Itap Guess 62.0 Ratio Gues 0.641 0.817 0.950 0.980 0.994
Itap Ref 74.0 Itap ratio 0.750 0.940 0.973 0.990 1.000 1.000
Ser Guess 30 26 21 15 27 10Ser/PCB 30.0 24.0 19.0 14.0 1.0 1.0
LED PCBs 1.0 Ser Tot 30.0 24.0 19.0 14.0 1.0 1.0 87 total seriesPar Guess 2.1 2.2 2.3 2.6 1.0 1.0
Par Lim 5.0 Parallel LED 3.0 3.0 2.0 2.0 1.0 1.0Par LED PCBs Znr Ovride 0.0 0.0 V1st run at 0%, then 1% or 5% Calc Zener 22.0 20.0 VTol Calc Rset 7.484 1.175 0.677 0.473 27.227 1.551 W
Rset GND Rset Ovride
Itap 52.307 65.462 68.547 70.671 71.481 71.481 mAItap limit 56 90 115 115 115 115 mA
Standard resistor values: click '+' to left.
Performance Advanced Controls: click '+' to leftHelp
Summary and Optimization Repeat Solver for different results.
Parameter Wgh Fctr Target Accept Dir Result Units Conditions Mgn Trgt Mgn AcptLight 7 1600 1400 min 1430 Lm nom line -10.6% 2.1%
Lum Eff 3 100 90 min 112 Lm/W nom line 12.5% 25.0%Line reg, hi 1 10 15 max 10.6 % hi line -6.1% 29.2%Line reg, lo 3 -10 -20 max -20.4 % lo line -103.8% -1.9%
Nled 3 255 300 max 228 — 10.6% 24.0%Extra LEDS 4 40 60 max 32 % — 20.1% 46.7%
max Pled 2 125 125 max 68 mW lo–max line 45.7% 45.7%Pout 0 10.0 10.0 nom 11.9 W nom line — —
PF 2 0.9900 0.9000 min 0.9832 nom line -0.7% 9.2%LED SOA 9 0.850 0.900 max 0.788 nom line 7.3% 12.5%
Pdrv 7 1.000 1.500 max 1.644 W lo–max line -64.4% -9.6%Elec Eff 0 92.0 85.0 min 87.1 % nom line — —min Itap 0 33 min 52.3 mA — — —
THD 5 10 20 max 16.9 % nom line -69.3% 15.4%
Light Nominal spec'd LED brightness is 7.98Lm
VAC Lumens Lm/LED LED Util Lm/W Rel Lm Eff Icnd Equiv187 1139 4.99 63% 8.588 111.5 86.2% 84.3W220 1430 6.27 79% 11.081 112.5 86.9% 105.9W253 1582 6.94 87% 12.587 104.8 81.0% 117.2W264 1620 7.11 89% 12.950 102.2 79.0% 120.0W
LED Average Current Rated LED current is 20mA nominal and 40mA continuous DC
VAC Seg 1 Seg 2 Seg 4 Seg 5 Seg 6 Avg187 16.3 13.4 13.2 — — — 12.8 mA220 17.6 15.2 17.7 12.1 — — 16.2 mA253 18.5 16.5 20.6 16.5 — — 18.0 mA264 18.8 16.8 21.4 17.5 — — 18.4 mA
VAC Pin Preg Pset Ptp Pznr Pbr Ploss Pled E Eff
Introduction (click '+' button to left)
(xx = Rset GND)
PLEDs (W)
Overall Power (W unless specified. Zeners are considered a loss.)
1% Button 8735%
Znr Znr
0%
187 10.210 1.314 0.094 0.169 - 0.045 1.622 8.588 84.1%220 12.715 1.140 0.102 0.190 0.159 0.043 1.634 11.081 87.1%253 15.093 1.366 0.110 0.204 0.772 0.054 2.506 12.587 83.4%264 15.862 1.644 0.112 0.213 0.883 0.059 2.911 12.950 81.6%
© 2012 Supertex Inc.
Sample CL8800 Simulator and OptimizerSchematic and GraphsHelp
Schematic Seg 1 Seg 2 Seg 3 Seg 4 Seg 5 Seg 6 Zener Sub
Series → 30 24 19 14 1 1 Seg 5 Seg 6
Parallel → 3 3 2 2 1 1 22.0V 20.0V
0.503W 0.380W
52.3mA 65.5mA 68.5mA 70.7mA 71.5mA 71.5mA
RS1 RS2 RS3 RS4 RS6open
7.68W 1.38W 0.88W 0.67W 1.75W11mW 4mW 3mW 2mW 3mW RS5
connect 27.4W 104mW
7
LED SOA is an approximation. Time dependency may be an additional constraint.
Notes
Requires additional heatsinking.
ITAP →
RSET →
-100
-80
-60
-40
-20
0
20
40
60
80
100Line Current
Time
Cu
rre
nt
(mA
)
0 50 100 150 200 250 3000.0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
1.8
2.0Driver Dissipation
AC Line (VRMS)
Drive
r D
iss
ipatio
n (
W)
0 50 100 150 200 250 3000.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
0
200
400
600
800
1000
1200
1400
1600
1800Losses and Lumens
TotalRegRset
AC Line (VRMS)
Lo
ss
(W
)
Bri
gh
t (l
m)
0 50 100 150 200 250 300 350 400
0
10
20
30
40
50
60
70
80
90Tap VI
Voltage (V)
Cu
rre
nt
(mA
)
0 10 20 30 40 50 60
0
20
40
60
80
100
120
140
160
180
02468101214161820
LED Efficiency
Current (mA)
Lu
m E
ff (
Lm
/W)
Du
ty C
ycle
(%
)
BIASTAP1 TAP2 TAP3 TAP6TAP5TAP4
GNDCL8800
SET1 SET2 SET3 SET6SET4 SET5
0 1 2 3 4 5 6 70
50
100
150
200
250
300
350
400Tap Switchover
Tap Voltage (V)
Ta
p (
#)
1 10 100 10000
20
40
60
80
100
120 LED SOA
Equivalent Duty Cycle (%)
Pea
k C
urre
nt (
mA
)
DisclaimerThe mathematical models used in this worksheet do not completely describe the behavior of an actual circuit using real components.Information provided by this worksheet should be considered as a starting point for further development of the LED driver.The final design must be thoroughly tested to assure performance, reliability, safety, and conformance to applicable regulations.
© 2012 Supertex Inc.
Help missing data missing data missing data missing data missing dataDo not enter in col B! 4 Index → 0 1 2 3 4
LED Mfg Toyoda-Gosei Default Cree Osram Toyoda-Gosei Toyoda-GoseiLED PN E1SBA-YH0R6-0C CLM3C-WKW LCW JDSH EC E1SBA-YH0R6-0C E1SBA-YH0R6-0C
General Select Override (x) →Source Measured Datasheet Datasheet Datasheet Measured
By SLL SLL SLL SLL SLLDate 05Jul12 20-Jun-12 18-Jun-12 20-Jun-12 5-Jul-12
Nominal Iled 20.00 mA 20.000 20.000 120.000 20.000 20.000Vled 3.08 V 3.200 3.200 3.200 2.900 3.060
Vled Model 3.08 -0.056 -0.106 2.894 3.083TC Vled -2.00 mV/°C -2.000
Brightness 7.98 Lm 6.000 4.200 37.600 8.600 8.138TC Brightness -0.12 %/°C 0.000 -0.120Luminous Eff 129.37 Lm/W 93.750 65.625 97.917 148.276 132.969
Color Temp — °K — 5500.000Lum Bin — —
Color Bin — — Vf Bin — —
Series LEDs/Pkg 1.00 1 1.000 1.000 1.000 1.000LED Ratings
Ipulse(max) 100.00 mA 80 100.000 300.000 100.000 100.000@ Duty 10.00 % 10 10.000 0.500 10.000 10.000
Idc(max) 40.00 mA 30 25.000 180.000 40.000 40.000Power 125.00 mW 92.5043547259246 100.000 125.000 125.000
LED VI CoefficientsVnom 2.24 V 3 -0.200 -0.340 2.094 2.237
Rled 8.63 W 10 10.200 2.800 8.504 8.630Knee 2.34 2 5.000 3.330 1.154 2.337
LED VI CharacteristicsTemperature 25.00 25 25.000
Vact 1 2.69 V — 2.838 2.604 2.594 2.691Vact 2 2.85 V — 3.064 2.813 2.729 2.847Vact 3 3.06 V — 3.199 3.086 2.895 3.060Vact 4 3.29 V — 3.396 3.202 3.003 3.287Vact 5 3.46 V — 3.627 3.400 3.099 3.463Iact 1 1.27 mA — 4.696 5.660 1.074 1.273Iact 2 6.75 mA — 13.260 32.704 7.145 6.750Iact 3 18.88 mA — 19.890 89.937 19.791 18.880Iact 4 35.04 mA — 31.768 121.384 30.052 35.038Iact 5 51.24 mA — 48.895 179.245 39.973 51.240
LED BI CoefficientsSlope 0.00 0.000 0.065 0.001
k 894.37 5.000 16.175 894.370Knee 0.06 0 0.088 0.059
LED VB CharacteristicsBrt Corr 1 0.04 0.064 0 0.03801738728
Brt 2 0.32 0.338 0.2103487 0.32410782695Brt 3 0.95 0.944 0.5460014 0.94505848593Brt 4 1.74 1.752 1.041879 1.73766340872Brt 5 2.37 2.562 1.869455 2.37205455815
I 1 1.27 mA 2 1.025 1.273I 2 6.75 mA 6.66666666666667 3.935 6.750I 3 18.88 mA 20 10.166 18.880I 4 35.04 mA 40 20.335 35.038I 5 51.24 mA 60 39.67951 51.240
RCMeas
2.538071 0.04 0.30937568.52792 0.72 2.637598.98477 1 7.690625220.8122 2 14.140625401.0152 3.34 19.303125
3.82E-17 2.609489 0.01295337 6.660584
LED Characteristics (italic = default sub)
1.8 2.0 2.2 2.4 2.6 2.8 3.0 3.2 3.4 3.60
10
20
30
40
50
60Volt – Current
Actual
Model
Nominal
V (V)
I (m
A)
0.2202073 2.043796 0.2202 5.2550.5958549 1.222628 0.5829016 3.3941611.010363 0.7664234 1.010363 2.0072992.033679 0.3467153 2.020725 0.5109489
0.0388601 52.18978 0 18.5016222222
40.87592 0 14.5972222222
24.45256 0 9.42822515.328468 5.575830555566.934306 1.4193025
0.02590674 -7.29E-16
(VLEDnom)*(1+LOG(1*(1+(Current/ilednom)^(VIkne/10))))+VIr*Current/10001208.5 26.7035375555
Voltage ~ CurrentCurrent Actual V Model V Err^2 (VLEDnom)*(1+LOG(1*(1+(A111/ilednom)^(VIkne/10))))+VIr*A111/1000
1.273 2.691 2.659 6.36E-02 $N$419*(1+LOG(1+($B$427/ilednom)^($N$421/10)))+VIr*$B$427/1000+VLT6.750 2.847 2.854 3.38E-01
18.880 3.060 3.067 9.44E-0135.038 3.287 3.279 1.75E+0051.240 3.463 3.466 2.56E+00
Optimize Target 5.60E+0020.00 3.083
30 3.217Brightness ~ Current
Current Actual Brt Model Brt Err^21.273 0.038 0.069 0.000935836624032 161.8006.750 0.324 0.358 0.000669782076347 148.310
18.880 0.945 0.966 0.000428778897054 133.09535.038 1.738 1.709 0.001102298236289 118.66851.240 2.372 2.382 0.000145414145705 106.998
Optimize Target 0.00328210997942620.00 1.020
Delta Vf TestBranch Currents Branch Voltages
20 29.28122 29.407
10.0% 0.43%
20 1.020 131.957-0.020
BrtLEDnom 7.9781
0.001 58.8235294
1.8 2.0 2.2 2.4 2.6 2.8 3.0 3.2 3.4 3.60
10
20
30
40
50
60Volt – Current
Actual
Model
Nominal
V (V)
I (m
A)
0 10 20 30 40 50 600.0
0.5
1.0
1.5
2.0
2.5
3.0
0
20
40
60
80
100
120
140
160
180Brightness – Current
Actual
LED Current (mA)
× N
om
Brt
LE
D E
ff (
Lm
/W)
0 0 0 0 00 0 0 0 00 0 0 0 0
#DIV/0! #DIV/0! #DIV/0! #DIV/0! #DIV/0!#DIV/0! #DIV/0! #DIV/0! #DIV/0! #DIV/0!#DIV/0! #DIV/0! #DIV/0! #DIV/0! #DIV/0!
00
missing data missing data missing data missing data missing data5 6 7 8 9 10 11 12
Toyoda-Gosei Citizen LiteON Alti Edison LG Innotek Cree NichiaE1SBA-YH046-0C CLL600-010A1-30AM1A2 LTW-M140SZS30 AT558OWPE3 ET-3014H-1F1W LEMWS59Q80HZ10 MX6S NF2L757ART
Measured Datasheet Datasheet Datasheet Datasheet Measured Datasheet DatasheetSLL SLL SLL SLL SLL SLL SLL SLL
8-Jun-12 27-Jun-12 27-Jun-12 29-Jun-12 23-Jul-12 25-Jul-12 1-Aug-12 2-Aug-12
40.000 80.000 20.000 20.000 30.000 65.000 60.000 100.0003.100 3.200 3.400 3.200 2.900 3.000 20.000 6.0003.101 3.180 -0.040 -0.068 2.895 0.000 20.095 6.034
-2.600 -2.000 -20.00011.600 24.100 6.000 7.100 11.200 23.600 114.000 72.000
-0.133 -0.26493.548 94.141 88.235 110.937 128.736 121.026 95.000 120.000
3000.000 3380.000 3700.000R3
1.000 1.000 1.000 1.000 1.000 6 2.000
150.000 120.000 100.000 80.000 100.000 260.000 400.00010.000 10.000 10.000 10.000 25.000 10.000 10.00060.000 100.000 30.000 30.000 30.000 150.000 175.000 200.000
340.000 120.000 102.000 555.000 1340.000
2.162 2.260 -0.200 -0.380 2.159 2.202 2.464 2.1727.207 3.000 11.000 21.300 2.856 2.347 2.395 1.9101.740 2.800 1.000 3.000 3.383 2.263 5.166 2.315
2.700 2.703 3.750 2.633 2.722 2.719 15.982 5.4512.842 2.959 3.500 2.924 2.952 2.808 18.366 5.6843.100 3.197 3.254 3.278 3.201 3.020 20.119 5.9953.284 3.285 3.150 4.215 3.412 3.094 21.826 6.6483.442 3.355 3.000 5.051 3.546 3.263 23.743 7.4875.030 9.032 50 1.020586 10.625 10.88 2.524038 20.491
15.020 41.210 25 7.672833 40 22.64 26.08173 48.24140.100 79.032 10 19.99332 79.375 65.12 60.57692 96.58860.000 98.790 5 58.87237 118.75 85.24 107.6923 212.14579.600 121.371 0.01 96.00655 156.875 134.4 174.1587 396.269
0.141 0.359 1.330 0.500 0.032 0.058 0.677 0.7867.664 2.454 1.200 3.000 36.442 17.342 0.740 0.4790.214 0.328 15.200 5.000 0.207 0.101 0.542 0.517
0.03532009 0.1468599 0 0.04827485 0.03318584 0.1581920904 0.04166667 0.040.5739514 0.5642512 0.9873418 0.2049406 0.4446903 0.3418079096 0.6666667 0.721.024283 0.9971014 1.632911 0.9893474 0.6969027 0.98587570621 1.041667 11.390728 1.182609 2.183544 2.139107 1.061947 1.22457627119 1.652778 21.690949 1.344928 2.563291 3.145389 1.426991 1.80979284369 2.263889 3.34
1.710 9.767 0 0.9854868 0.6225681 10.88 2.333333 2.53807120.694 41.023 20 3.673494 12.14008 22.64 39.66667 68.5279240.565 80.093 40 20.02568 19.92218 65.12 64.4 98.9847760.258 100.279 64.73684 58.22096 32.68482 85.24 116.6667 220.8122
80.12903 119.814 100 88.96237 49.49416 134.4 173.6 401.0152
6.23E-01 0.03318584 15.98182 1.096491 0.01515152
12.14008 0.4446903 18.36623 40.57018 0.6212121
19.92218 0.6969027 20.11948 65.78947 1
32.68482 1.061947 21.82597 132.6754 1.93939449.49416 1.426991 23.74286 199.5614 2.818182
2.33333339.66667
64.40.01295337 5.255474 116.6667
0.2202073 5.145985 173.60.5958549 4.9817521.010363 4.8540152.020725 4.726277
11.6788311111
11.4355222222
11.0705610.7867
10.5028377778
(VLEDnom)*(1+LOG(1*(1+(Current/ilednom)^(VIkne/10))))+VIr*Current/1000
(VLEDnom)*(1+LOG(1*(1+(A111/ilednom)^(VIkne/10))))+VIr*A111/1000$N$419*(1+LOG(1+($B$427/ilednom)^($N$421/10)))+VIr*$B$427/1000+VLT
000
#DIV/0! #DIV/0!#DIV/0! #DIV/0!#DIV/0!
missing data missing data missing data missing data missing data missing data13 14 15 16 17 18 19 20
Nichia Osram Edison Lumenmax Seoul Epistar EpistarNS2L757AT__S1201 Duris E3 ET-3014x-1F1W XT1-3014BWRG-AN STW9Q14B ES-AMYO (module) ES-AMYO (single)
Datasheet Datasheet Datasheet Datasheet Datasheet Datasheet DatasheetSLL SLL SLL SLL SLL SLL SLL
9-Aug-12 15-Aug-12 17-Aug-12 17-Aug-12 4-Sep-12 2-Nov-12 2-Nov-12(VLEDnom)*(1+LOG(1*(1+(A112/ilednom)^(VIkne/10))))+VIr*A112/1000
65.000 20.000 30.000 30.000 100.000 20.000 20.0002.850 3.050 3.400 3.200 2.714 2.7142.836 3.044 2.914 3.252 0.000 21.820 3.117 0.000
-2.14023.000 7.300 11.200 9.110 26.700 43.980 6.283-0.164
124.157 119.672 109.804 83.437 810.243 115.7494000.000 3600.000 3000.000
1.000 1.000 1.000 1.000 7.000 1.000
200.000 100.000 100.000 100.00010.000 0.500 25.000 10.000
120.000 30.000 30.000 35.000 160.000 30.000 30.000396.000 560.000
2.080 2.117 2.180 2.179 2.360 2.110 2.1102.000 14.500 2.600 13.900 1.500 18.600 18.6001.000 0.900 3.400 2.350 4.000 1.400 1.400
2.658 2.774 2.725 2.733 1.996 18.116882 2.5881262.730 2.877 2.916 2.873 2.711 18.859701 2.6942432.838 3.051 3.179 3.080 3.038 20.0025 2.85752.973 3.128 3.418 3.313 3.232 21.430997 3.0615713.162 3.200 3.538 3.580 3.500 23.316622 3.330946
10.20313 5 11.65049 5.172414 1.142857 1 130.22382 10 34.17476 10.59113 9.142857 3.10E+00 3.10E+0061.09789 19.92063 72.23301 19.95074 53.71429 8.64E+00 8.64E+00113.9642 24.92063 117.2816 33.25123 104 1.69E+01 1.69E+01200.129 29.92063 154.5631 49.75369 192 3.03E+01 3.03E+01
0.618 0.860 0.367 0.283 0.588 0.500 0.5000.658 0.347 2.346 3.040 0.764 1.000 1.0000.099 0.828 0.328 0.189 0.297 0.001 0.001
0.01515152 0.2770711 0.025 0.2013245 0 0.05 0.050.6212121 0.467198 0.4916667 0.4556291 0.3960674 0.15483855 0.15483855
1 0.6719721 0.7 0.7099338 0.9269663 0.4318507 0.43185071.939394 1 1 1.133775 1.171348 0.843806 0.8438062.818182 1.405998 1.425 1.515232 1.398876 1.5163105 1.5163105
1.096491 5 0.5825243 5.365854 0 1 140.57018 8.72105 13.39806 12.92683 40.16736 3.10E+00 3.10E+0065.78947 13.08125 20 20.4878 100.4184 8.64E+00 8.64E+00132.6754 20.18433 30.09709 34.87805 131.2134 1.69E+01 1.69E+01
199.5614 29.71017 49.12621 50 161.3389 3.03E+01 3.03E+01
0.5825243 4.901961 0 -0.008426966
13.39806 12.7451 40.16736 0.3960674
20 20.34314 100.4184 0.9269663
30.09709 34.06863 131.2134 1.17134849.12621 50 161.3389 1.398876
21 22 23 24 24 25 26 27
0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000
28 29 30 31 32 33 34 35
0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000
36 37 38 39 40 41 42 43
0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000
44 45 46 47 48 49 50
0.000 0.000 0.000 0.000 0.000 0.000 0.000
CL8800 LED Lamp Designrev1 7Nov12
SampleSchematic Worksheet Rev 2b 4SEP12
Zener sub Zener sub
30 24 19 14 1 1 228 total LEDs
Zener Sub3 3 2 2 1 1 seg 5 seg 6
52.3mA 65.5mA 68.5mA 70.7mA 71.5mA 71.5mA 22.0V 20.0V
0.503W 0.380W
open 7.68ohm 1.38ohm 0.88ohm 0.67ohm 1.8ohm
11mW 4mW 3mW 2mW3mW 27.43ohm
connect 104mW
ConditionsVAC = 187/220/253 VRMS @ 50Hz, 264VRMS abs max Series R = 55ohms
LED Mfg/PN: Toyoda-Gosei E1SBA-YH0R6-0C Vd = 0.65V
LED Specs (Measured): 8.0lm @ 20mA, 3.1V (129Lm/W) missing data LED Temp = 55°C
Performance (requirements in parenthesis were excluded from design targets and are considered irrelevant)
Parameter Target Acceptable Predicted ConditionsLight Output #REF! #REF! #REF! #REF!Luminous Efficiency #REF! #REF! #REF! #REF!Line Regulation, high line (Lm) #REF! #REF! #REF! #REF!Line Regulation, low line (Lm) #REF! #REF! #REF! #REF!Input Power — — — nom lineTotal LED Quantity #REF! #REF! #REF! #REF!
#REF! #REF! #REF! #REF!Max Single LED Power #REF! #REF! #REF! #REF!Total LED String Power #REF! #REF! #REF! #REF!Power Factor #REF! #REF! #REF! #REF!
#REF! #REF! #REF! #REF!CL8800 Dissipation #REF! #REF! #REF! #REF!
#REF! #REF! #REF! #REF!
— — — nom lineMinimum Tap Current #REF! #REF! #REF! #REF!Line Current THD #REF! #REF! #REF! #REF!
Line Current LED SOA
LED SOA is an approximation. Time dependency may be an additional constraint.
Extra LEDs (compared to DC drive)
LED SOA Ratio (>1 exceeds SOA)
Electrical Efficiency (zeners=loss)
Relative Luminous Efficiency(relative to LED efficiency)
1 10 100 10000
20
40
60
80
100
120 Pk (max AC)Pk (hi AC)Pk (nom AC)Pk (lo AC)
Equivalent Duty Cycle (%)
Pe
ak
Cu
rre
nt
(mA
)
-100
-80
-60
-40
-20
0
20
40
60
80
100
Lo LineNom Line
Time
Cu
rre
nt
(mA
)
BIASTAP1 TAP2 TAP3 TAP6TAP5TAP4
GNDCL8800
SET1 SET2 SET3 SET6SET4 SET5
DisclaimerThe mathematical models used in this worksheet do not completely describe the behavior of an actual circuit using real components.Information provided by this worksheet should be considered as a starting point for further development of the LED driver.The final design must be thoroughly tested to assure performance, reliability, safety, and conformance to applicable regulations.
© 2012 Supertex Inc.
CL8800 LED Lamp Designrev
Sample
Actual R's (cut and paste) 11.520 1.047 0.359 0.586 26.240 1.359 W
Lumens Input Power THDVAC Predict Meas Diff Predict Meas Diff Predict Meas Diff187 1138.6Lm 642Lm -43.6% 10.210W 5.805W -43.1% 19.2% —
220 1430.0Lm 831Lm -41.9% 12.715W 7.325W -42.4% 16.9% 18.3% 7.8%
253 1581.8Lm 931Lm -41.2% 15.093W 8.718W -42.2% 19.6% —
264 1620.5Lm 968Lm -40.3% 15.862W 9.214W -41.9% 20.4% —
Summary (at nominal line)
Parameter Predicted Measured DifferenceLight 1430 831 -41.9%
Lum Eff 112 113.45 0.9%
Line reg, hi 10.6% 12.0% 13.2%
Line reg, lo -20.4% -22.7% 11.6%
max Pled 68 —
Pout 11.9 —
PF 0.9832 1 0.0%
Pdrv 1.644 —
Elec Eff 87.1 —
min Itap 52.3 —
THD 16.9 18 7.8%
Tap VI
V I0.00 0.75
49.30 1.1781.20 50.1087.30 52.00
103.00 68.70117.50 69.90127.70 72.30130.70 72.60150.10 73.20164.90 73.40173.50 76.00180.50 75.70184.00 73.80186.40 76.00190.40 76.50
Prediction Accuracy (Make sure resistor override reflects actual values)
Tap VI Accuracy
80 100 120 140 160 180 200 220 240 260 2800
200
400
600
800
1000
1200
1400
1600
1800
0
2
4
6
8
10
12
14
16
18
Prediction Accuracy
Meas Lumens
Predict Lumens
Meas Power
Predict Power
VAC
Lm
Pow
er
0 50 100 150 200 250 300 350 400
0
10
20
30
40
50
60
70
80
90Tap VI
Model
lo line
nom line
hi line
Meas
Voltage (V)
Cu
rre
nt
(mA
)
Index num 1% Std Val 5% Std Val 10% Std Val0 0 0
0 0 0 01 0 0 02 0.1 0.1 13 0.102 0.11 1.24 0.105 0.12 1.55 0.107 0.13 1.86 0.11 0.15 2.27 0.113 0.16 2.78 0.115 0.18 3.39 0.118 0.2 3.9
10 0.121 0.22 4.711 0.124 0.24 5.612 0.127 0.27 6.813 0.13 0.3 8.214 0.133 0.33 1015 0.137 0.36 1216 0.14 0.39 1517 0.143 0.43 1818 0.147 0.47 2219 0.15 0.51 2720 0.154 0.56 3321 0.158 0.62 3922 0.162 0.68 4723 0.165 0.75 5624 0.169 0.82 6825 0.174 0.91 8226 0.178 1 10027 0.182 1.1 10028 0.187 1.2 10029 0.191 1.3 10030 0.196 1.5 10031 0.2 1.6 10032 0.205 1.8 10033 0.21 2 10034 0.215 2.2 10035 0.221 2.4 10036 0.226 2.7 10037 0.232 3 10038 0.237 3.3 10039 0.243 3.6 10040 0.249 3.9 10041 0.255 4.3 10042 0.261 4.7 10043 0.267 5.1 10044 0.274 5.6 10045 0.28 6.2 10046 0.287 6.8 10047 0.294 7.5 10048 0.301 8.2 10049 0.309 9.1 10050 0.316 10 10051 0.324 11 10052 0.332 12 10053 0.34 13 10054 0.348 15 10055 0.357 16 10056 0.365 18 10057 0.374 20 10058 0.383 22 10059 0.392 24 10060 0.412 27 10061 0.422 30 10062 0.432 33 10063 0.442 36 10064 0.453 39 10065 0.464 43 10066 0.475 47 10067 0.487 51 10068 0.499 56 10069 0.511 62 10070 0.523 68 10071 0.536 75 10072 0.549 82 10073 0.562 91 10074 0.576 100 100
75 0.59 100 10076 0.604 100 10077 0.619 100 10078 0.634 100 10079 0.649 100 10080 0.665 100 10081 0.681 100 10082 0.698 100 10083 0.715 100 10084 0.732 100 10085 0.75 100 10086 0.768 100 10087 0.787 100 10088 0.806 100 10089 0.825 100 10090 0.845 100 10091 0.866 100 10092 0.887 100 10093 0.909 100 10094 0.931 100 10095 0.953 100 10096 0.976 100 10097 1 100 10098 1.02 100 10099 1.05 100 100
100 1.07 100 100101 1.1 100 100102 1.13 100 100103 1.15 100 100104 1.18 100 100105 1.21 100 100106 1.24 100 100107 1.27 100 100108 1.3 100 100109 1.33 100 100110 1.37 100 100111 1.4 100 100112 1.43 100 100113 1.47 100 100114 1.5 100 100115 1.54 100 100116 1.58 100 100117 1.62 100 100118 1.65 100 100119 1.69 100 100120 1.74 100 100121 1.78 100 100122 1.82 100 100123 1.87 100 100124 1.91 100 100125 1.96 100 100126 2 100 100127 2.05 100 100128 2.1 100 100129 2.15 100 100130 2.21 100 100131 2.26 100 100132 2.32 100 100133 2.37 100 100134 2.43 100 100135 2.49 100 100136 2.55 100 100137 2.61 100 100138 2.67 100 100139 2.74 100 100140 2.8 100 100141 2.87 100 100142 2.94 100 100143 3.01 100 100144 3.09 100 100145 3.16 100 100146 3.24 100 100147 3.32 100 100148 3.4 100 100149 3.48 100 100150 3.57 100 100151 3.65 100 100
152 3.74 100 100153 3.83 100 100154 3.92 100 100155 4.12 100 100156 4.22 100 100157 4.32 100 100158 4.42 100 100159 4.53 100 100160 4.64 100 100161 4.75 100 100162 4.87 100 100163 4.99 100 100164 5.11 100 100165 5.23 100 100166 5.36 100 100167 5.49 100 100168 5.62 100 100169 5.76 100 100170 5.9 100 100171 6.04 100 100172 6.19 100 100173 6.34 100 100174 6.49 100 100175 6.65 100 100176 6.81 100 100177 6.98 100 100178 7.15 100 100179 7.32 100 100180 7.5 100 100181 7.68 100 100182 7.87 100 100183 8.06 100 100184 8.25 100 100185 8.45 100 100186 8.66 100 100187 8.87 100 100188 9.09 100 100189 9.31 100 100190 9.53 100 100191 9.76 100 100192 10 100 100193 10.2 100 100194 10.5 100 100195 10.7 100 100196 11 100 100197 11.3 100 100198 11.5 100 100199 11.8 100 100200 12.1 100 100201 12.4 100 100202 12.7 100 100203 13 100 100204 13.3 100 100205 13.7 100 100206 14 100 100207 14.3 100 100208 14.7 100 100209 15 100 100210 15.4 100 100211 15.8 100 100212 16.2 100 100213 16.5 100 100214 16.9 100 100215 17.4 100 100216 17.8 100 100217 18.2 100 100218 18.7 100 100219 19.1 100 100220 19.6 100 100221 20 100 100222 20.5 100 100223 21 100 100224 21.5 100 100225 22.1 100 100226 22.6 100 100227 23.2 100 100228 23.7 100 100
229 24.3 100 100230 24.9 100 100231 25.5 100 100232 26.1 100 100233 26.7 100 100234 27.4 100 100235 28 100 100236 28.7 100 100237 29.4 100 100238 30.1 100 100239 30.9 100 100240 31.6 100 100241 32.4 100 100242 33.2 100 100243 34 100 100244 34.8 100 100245 35.7 100 100246 36.5 100 100247 37.4 100 100248 38.3 100 100249 39.2 100 100250 41.2 100 100251 42.2 100 100252 43.2 100 100253 44.2 100 100254 45.3 100 100255 46.4 100 100256 47.5 100 100257 48.7 100 100258 49.9 100 100259 51.1 100 100260 52.3 100 100261 53.6 100 100262 54.9 100 100263 56.2 100 100264 57.6 100 100265 59 100 100266 60.4 100 100267 61.9 100 100268 63.4 100 100269 64.9 100 100270 66.5 100 100271 68.1 100 100272 69.8 100 100273 71.5 100 100274 73.2 100 100275 75 100 100276 76.8 100 100277 78.7 100 100278 80.6 100 100279 82.5 100 100280 84.5 100 100281 86.6 100 100282 88.7 100 100283 90.9 100 100284 93.1 100 100285 95.3 100 100286 97.6 100 100287 100 100 100288 100 100 100289 100 100 100290 100 100 100291 100 100 100
100 100 100
0 50 100 150 200 250 300 350 400
0
10
20
30
40
50
60
70
80
90 Tap VI
Model
lo line
nom line
hi l ine
Meas
Voltage (V)
Cu
rre
nt
(mA
)
© 2012 Supertex Inc.
Introduction (click '+' button to left)For the lastest worksheet click:
Conditions
Design Variables
CL8800 Worksheet
1 1 1 1 1 11 1 1 1 1 1
0 00 0 0 0 0 0
Performance
2/(1+IF($N$1=0,1,ABS($L$1*I2-1)^$N$1))
Margin Target
Summary and O 0 0 #REF! 0 #REF! #REF! 0 0 0
Parameter Target Accept Dir Result Units Conditions Margin Accept WF
Light 1600 1400 min 1430.05 Lm nom line -74.4% 15.0% 7
Lum Eff 100 90 min 112.47 Lm/W nom line 37.4% 74.9% 3
Line reg, hi 10 15 max 10.61 % hi line -6.1% 29.2% 1
Line reg, lo -10 -20 max -20.38 % lo line -311.3% -5.7% 3
Nled 255 300 max 228.00 0 — 31.8% 72.0% 3
Extra LEDS 40 60 max 31.95 % — 80.5% 187.0% 4
max Pled 125 125 max 67.84 mW lo–max line 91.5% 91.5% 2
Pout 10 10 nom 11.90 W nom line 0.0% 0.0% 0
PF 0.99 0.9 min 0.98 0 nom line -1.4% 18.5% 2
LED SOA 0.85 0.9 max 0.79 0 nom line 66.1% 112.5% 9
Pdrv 1 1.5 max 1.64 W lo–max line -450.9% -67.3% 7
Elec Eff 92 85 min 87.15 % nom line 0.0% 0.0% 0
min Itap 33 min 52.31 mA — 0.0% — 0
THD 10 20 max 16.93 % nom line -346.5% 76.8% 5
Light 2 max 5.000 0 0 0.0% — 0
-4.509 -0.673 1
1 2 3 4 5 6
1.1 1.1 1.1 1.1 1.1 1.11.3 1.3 1.3 1.3 1.3 1.3
7
Schematic and Graphs
Brt Light Output:L Eff Luminous EfficiencyReg+ Line Regulation, high line (Lm)Reg- Line Regulation, low line (Lm)Pin Input PowerPled LED PowerNled Total LED QuantityXledP1led Max Single LED Power
Total LED String PowerPF Power FactorSOAPreg CL8800 DissipationE EffRLEffItap Minimum Tap CurrentTHD Line Current THD
Extra LEDs (compared to DC drive)
LED SOA Ratio (>1 exceeds SOA)
Electrical Efficiency (zeners=loss)Relative Luminous Efficiency(relative to LED efficiency)
Brt :L Eff Reg+ Reg- Pin Pled Nled Xled P1led
0
2
4
6
8
10
12
scottl:
LED Ratings
Ipulse(max) 100 mA 7.97835141
@ Duty 10 %Idc(max) 40 mALED VI Coef 0
CL8800 50 90 115 115 115.0 115.0
Cl8801 50 90 200.0 200.0
7.0
7
CL8800 1 1 1 1 1.0 1.0
Cl8801 0 0 1 1 1.0 1.0
CalculationsMisce 2.718 LED eff 1.74963847 Lm/A Vsns 2fac 314.2 rad/s
0 1 2 3 4 5 6CL88xx 0 0 52.3 65.5 68.5 70.7 71.5 71.5
Overall
Page 33
56.87275044 60.89325357 60.89325357 60.89325357
Overall
Page 34
60.89325357 60.89325357
1
Page 35
1.029621354 1.419103132 2.237905437 1.63839296
1
Page 36
2.394226663 2.394220921
tap1 tap2 tap3 tap40.99 0.271 1.06 0.104 0.99 0.067 0.96 0.0521.91 0.523 1.95 0.191 2 0.134 1.97 0.1065.07 1.406 5.02 0.495 4.86 0.327 5.1 0.274
10.28 2.921 10.27 1.033 10.43 0.742 10.8 0.58620.12 6.13 20.08 2.087 20.01 1.388 19.88 1.092
40.19 4.64 50.06 3.8 40.35 2.30459.93 4.82 79.22 5.17
306.115 115.5408 79.44909 64.819590.332414 0.794615 0.950899 1.5800380.998742 0.997331 0.997683 0.995693
079.50054
1 2 3 4 5 693.75373 169.5535 231.4732 277.4706 300.6593 319.4456
357.796 0.262031 0.473883 0.646942 0.775499 0.840309 0.8928156.056602 0.112028 0.677961 0.34578 0.649304 0.893251 1.072734 1.18367 1.222836
91.28601 171.4162 235.8184 283.2018 312.4888 322.828729.60488 25.98693 20.88623 15.36686 9.498034 3.35332291.28601 80.13015 64.40223 47.38339 29.28698 10.3399
-3.810418 -0.146081 0.007014 0.030772 0.060669 0.088348 0.117896 0.1089140.303523 0.243948 0.179483 0.110936 0.039166
71.48114 0.731755 0.915792 0.958954 0.988671 1 11.233997 0.726896 0.621812 0.641225 0.816943 0.919912 0.972162 0.994144 1
-0.333124 0.082886 0.008196 0.009771 0.001524 0.000273 3.43E-05 3.32E-260.175719 0.102968 0.05225 0.021982 0.005856
39.75593 50.65049 57.03453 60.27404 61.63695 62129.0979 242.4191 333.4976 400.5078 441.9258 456.548740.13122 35.22687 28.31255 20.83072 12.87516 4.545632
0 10 20 30 40 50 60 70 80 900
1
2
3
4
5
6
7
tap1
tap2
tap3
tap4
91 171 236 283 312 323
91 75 62 47 27 10
40 1.92ItaP 12.86739 W
0.058488Nleds 208.6505
1.540924 1.540924 1.540924 1.540924 1.540924 1.5545.61886 40.04388 32.18408 23.67916 0 047.09315 41.51817 33.65837 25.15345 1.474291 1.474291
62.4 56.82502 48.96522 40.4603 0 02.107761 2.186677 2.344379 2.632958 1 1
0.413613
0.019798
$B$66*(A122/$B$31)*(1+$B$67*e^-($B$68*A122/$B$31))
0 10 20 30 40 50 60 70 80 900
1
2
3
4
5
6
7
tap1
tap2
tap3
tap4
141.526 4
208.6505
nser
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21
1 2 3 4 5 6
30 24 8 8 0 0 70 35
2.3333333333 2.917 8.75 8.75 0 0
0 0 0
1 2 3 4 5 1 0 0 0 0 27 28 29 30
1 0.014 1 0 8.75 0 0 2.000 1 0.986 -0.014 8.736 -0.014 -0.014 9 #N/A #N/A 3 #N/A
2 0.029 0.0666666667 0 0.583 0 0 9 1 0 6 0 0 9 #N/A #N/A 3 #N/A
3 0.043 0.1 0 0.875 0 0 9 1 0 9 0 0 9 #N/A #N/A 3 #N/A
4 0.057 0.1333333333 0 1.167 0 0 9 1 0 11 0 0 11 1 #N/A 3 #N/A
5 0.071 0.1666666667 0 1.458 0 0 11 2 0 18 0 0 18 1 #N/A 3 #N/A
6 0.086 0.2 0 1.75 0 0 18 4 0 33 0 0 33 1 #N/A #N/A
7 0.1 0.2333333333 0 2.042 0 0 33 8 0 70 0 0 70 1 #N/A #N/A
8 0.114 0.2666666667 0 2.333 0 0 70 19 0 166 0 0 166 1 #N/A #N/A
9 0.129 0.3 0 2.625 0 0 166 50 0 438 0 0 438 #N/A #N/A
10 0.143 0.3333333333 0 2.917 0 0 438 146 0 1279 0 0 1279 #N/A #N/A
11 0.157 0.3666666667 0 3.208 0 0 1279 469 0 4107 0 0 4107 #N/A #N/A
12 0.171 0.4 0 3.5 0 0 4107 1643 0 14378 0 0 14378 #N/A #N/A
13 0.186 0.4333333333 0 3.792 0 0 14378 6231 0 54520 0 0 54520 #N/A #N/A
14 0.2 0.4666666667 0 4.083 0 0 54520 25443 0 ### 0 0 ### #N/A #N/A
15 0.214 0.5 0 4.375 0 0 ### ### 0 ### 0 0 ### #N/A #N/A
16 0.229 0.5333333333 0 4.667 0 0 ### ### 0 ### 0 0 ### #N/A #N/A
17 0.243 0.5666666667 0 4.958 0 0 ### ### 0 ### 0 0 ### #N/A #N/A
18 0.257 0.6 0 5.25 0 0 ### ### 0 ### 0 0 ### #N/A #N/A
19 0.271 0.6333333333 0 5.542 0 0 ### ### 0 ### 0 0 ### #N/A #N/A
20 0.286 0.6666666667 0 5.833 0 0 ### ### 0 ### 0 0 ### #N/A #N/A
21 0.3 0.7 0 6.125 0 0 ### ### 0 ### 0 0 ### #N/A #N/A
22 0.314 0.7333333333 0 6.417 0 0 ### ### 0 ### 0 0 ### #N/A #N/A
23 0.329 0.7666666667 0 6.708 0 0 ### ### 0 ### 0 0 ### #N/A #N/A
24 0.343 0.8 0 7 0 0 ### ### 0 ### 0 0 ### #N/A #N/A
25 0.357 0.8333333333 0 7.292 0 0 ### ### 0 ### 0 0 ### #N/A #N/A
26 0.371 0.8666666667 0 7.583 0 0 ### ### 0 ### 0 0 ### #N/A #N/A
27 0.386 0.9 0 7.875 0 0 ### ### 0 ### 0 0 ### #N/A #N/A
28 0.4 0.9333333333 0 8.167 0 0 ### ### 0 ### 0 0 ### #N/A #N/A
29 0.414 0.9666666667 0 8.458 0 0 ### ### 0 ### 0 0 ### #N/A #N/A
30 0.429 1 0 8.75 0 0 ### ### 0 ### 0 0 ### #N/A #N/A
31 0.443 1.0333333333 0 9.042 0 0 ### ### 0 ### 0 0 ### #N/A #N/A
32 0.457 1.0666666667 0 9.333 0 0 ### ### 0 ### 0 0 ### #N/A #N/A
33 0.471 1.1 0 9.625 0 0 ### ### 0 ### 0 0 ### #N/A #N/A
34 0.486 1.1333333333 0 9.917 0 0 ### ### 0 ### 0 0 ### #N/A #N/A
35 0.5 1.1666666667 0 10.21 0 0 ### ### 0 ### 0 0 ### #N/A #N/A
36 0.514 1.2 0 10.5 0 0 ### ### 0 ### 0 0 ### #N/A #N/A
37 0 0 0 0 0 ### 0 0 0 0 0 ### #N/A #N/A #N/A #N/A
38 0 0 0 0 0 ### 0 0 0 0 0 ### #N/A #N/A #N/A #N/A
39 0 0 0 0 0 ### 0 0 0 0 0 ### #N/A #N/A #N/A #N/A
40 0 0 0 0 0 ### 0 0 0 0 0 ###
41 0 0 0 0 0 ### 0 0 0 0 0 ###
41 0 0 0 0 0 ### 0 0 0 0 0 ###
42 0 0 0 0 0 ### 0 0 0 0 0 ###
43 0 0 0 0 0 ### 0 0 0 0 0 ###
44 0 0 0 0 0 ### 0 0 0 0 0 ###
45 0 0 0 0 0 ### 0 0 0 0 0 ###
46 0 0 0 0 0 ### 0 0 0 0 0 ###
47 0 0 0 0 0 ### 0 0 0 0 0 ###
48 0 0 0 0 0 ### 0 0 0 0 0 ###
49 0 0 0 0 0 ### 0 0 0 0 0 ###
50 0 0 0 0 0 ### 0 0 0 0 0 ###
51 0 0 0 0 0 ### 0 0 0 0 0 ###
52 0 0 0 0 0 ### 0 0 0 0 0 ###
53 0 0 0 0 0 ### 0 0 0 0 0 ###
54 0 0 0 0 0 ### 0 0 0 0 0 ###
55 0 0 0 0 0 ### 0 0 0 0 0 ###
56 0 0 0 0 0 ### 0 0 0 0 0 ###
57 0 0 0 0 0 ### 0 0 0 0 0 ###
58 0 0 0 0 0 ### 0 0 0 0 0 ###
59 0 0 0 0 0 ### 0 0 0 0 0 ###
60 0 0 0 0 0 ### 0 0 0 0 0 ###
61 0 0 0 0 0 ### 0 0 0 0 0 ###
62 0 0 0 0 0 0 0 0 0 0 0 ###
63 0 0 0 0 0 0 0 0 0 0 0 ###
64 0 0 0 0 0 0 0 0 0 0 0 ###
65 0 0 0 0 0 0 0 0 0 0 0 ###
66 0 0 0 0 0 0 0 0 0 0 0 ###
0 10 20 30 40 50 60 70 80 90 1000
1
2
3
4
5
6
7
Column AG
67 0 0 0 0 0 0 0 0 0 0 0 ###
68 0 0 0 0 0 0 0 0 0 0 0 ###
69 0 0 0 0 0 0 0 0 0 0 0 ###
70 0 0 0 0 0 0 0 0 0 0 0 ###
71 0 0 0 0 0 0 0 0 0 0 0 ###
72 0 0 0 0 0 0 0 0 0 0 0 ###
73 0 0 0 0 0 0 0 0 0 0 0 ###
74 0 0 0 0 0 0 0 0 0 0 0 ###
75 0 0 0 0 0 0 0 0 0 0 0 ###
76 0 0 0 0 0 0 0 0 0 0 0 ###
77 0 0 0 0 0 0 0 0 0 0 0 ###
78 0 0 0 0 0 0 0 0 0 0 0 ###
79 0 0 0 0 0 0 0 0 0 0 0 ###
80 0 0 0 0 0 0 0 0 0 0 0 ###
81 0 0 0 0 0 0 0 0 0 0 0 ###
82 0 0 0 0 0 0 0 0 0 0 0 ###
84 0 0 0 0 0 0 0 0 0 0 0 ###
85 0 0 0 0 0 0 0 0 0 0 0 ###
86 0 0 0 0 0 0 0 0 0 0 0 ###
87 0 0 0 0 0 0 0 0 0 0 0 ###
88 0 0 0 0 0 0 0 0 0 0 0 ###
89 0 0 0 0 0 0 0 0 0 0 0 ###
90 0 0 0 0 0 0 0 0 0 0 0 ###
91 0 0 0 0 0 0 0 0 0 0 0 ###
92 0 0 0 0 0 0 0 0 0 0 0 ###
93 0 0 0 0 0 0 0 0 0 0 0 ###
0 0 0 0 0 0 0 0 0 0 0 ###
0 0 0 0 0 0 0 0 0 0 0 ###
0 0 0 0 0 0 0 0 0 0 0 ###
0 0 0 0 0 0 0 0 0 0 0 ###
0 0 0 0 0 0 0 0 0 0 0 ###
0 0 0 0 0 0 0 0 0 0 0 ###
0 0 0 0 0 0 0 0 0 0 0 ###
0 10 20 30 40 50 60 70 80 90 1000
1
2
3
4
5
6
7
Column AG
1 2 3 4 5 6
22 23 24 25 26 27 28 29 30 31 14 14 14 14 27 1
-16 -10 6 6 27 1
16 10 6 6 27 65
-3 2
-1 4 1 2 3 4 5 6
31 32 0 5 906 30 24 8 8 0
#N/A 1 #N/A 1 2 3 4 5 1 1 8 29.93 0 0 0 0 0
#N/A 1 1 2 3 4 5 2 6 29.83 1 0 0 0 0
#N/A 1 1 2 3 4 5 3 6 29.7 0 1 0 0 0
#N/A 2 1 2 3 4 5 4 6 29.53 0 0 1 0 0
#N/A 2 1 2 3 4 5 5 8 29.33 0 0 0 1 0
#N/A 1 1 2 3 4 5 5 9 29.1 0 0 0 2 0
#N/A 1 1 2 3 4 5 1 10 28.83 0 0 0 0 0
#N/A 1 1 2 3 4 5 2 7 28.53 2 0 0 0 0
#N/A 0 1 2 3 4 5 3 6 28.2 0 2 0 0 0
#N/A 0 1 2 3 4 5 4 6 27.83 0 0 2 0 0
#N/A 0 1 2 3 4 5 5 8 27.43 0 0 0 3 0
#N/A 0 1 2 3 4 5 5 9 27 0 0 0 4 0
#N/A 0 1 2 3 4 5 1 10 26.53 0 0 0 0 0
#N/A 0 1 2 3 4 5 2 7 26.03 3 0 0 0 0
#N/A 0 1 2 3 4 5 3 6 25.5 0 3 0 0 0
#N/A 0 1 2 3 4 5 4 6 24.93 0 0 3 0 0
#N/A 0 1 2 3 4 5 5 8 24.33 0 0 0 5 0
#N/A 0 1 2 3 4 5 5 9 23.7 0 0 0 6 0
#N/A 0 1 2 3 4 5 1 10 23.03 0 0 0 0 0
#N/A 0 1 2 3 4 5 2 7 22.33 4 0 0 0 0
#N/A 0 1 2 3 4 5 3 6 21.6 0 4 0 0 0
#N/A 0 1 2 3 4 5 4 6 20.83 0 0 4 0 0
#N/A 0 1 2 3 4 5 5 8 20.03 0 0 0 7 0
#N/A 0 1 2 3 4 5 5 9 19.2 0 0 0 8 0
#N/A 0 1 2 3 4 5 1 10 18.33 0 0 0 0 0
#N/A 0 1 2 3 4 5 2 7 17.43 5 0 0 0 0
#N/A 0 3 6 16.5 0 5 0 0 0
#N/A 0 4 6 15.53 0 0 5 0 0
#N/A 0 5 8 14.53 0 0 0 9 0
#N/A 0 5 9 13.5 0 0 0 10 0
#N/A 0 1 10 12.43 0 0 0 0 0
#N/A 0 2 7 11.33 6 0 0 0 0
#N/A 0 3 6 10.2 0 6 0 0 0
#N/A 0 4 6 9.033 0 0 6 0 0
#N/A 0 5 8 7.833 0 0 0 11 0
#N/A 0 5 9 6.6 0 0 0 12 0
#N/A 0 1 10 5.333 0 0 0 0 0
#N/A 2 7 4.033 7 0 0 0 0
#N/A 3 6 0 0 7 0 0 0
4 6 0 0 0 7 0 0
5 8 0 0 0 0 13 0
5 9 0 0 0 0 14 0
1 10 30.93 0 0 0 0 0
2 7 0 8 0 0 0 0
3 6 0 0 8 0 0 0
4 6 0 0 0 8 0 0
5 8 0 0 0 0 15 0
5 9 0 0 0 0 16 0
1 10 31.93 0 0 0 0 0
2 7 0 9 0 0 0 0
3 6 0 0 9 0 0 0
4 6 0 0 0 9 0 0
5 8 0 0 0 0 17 0
5 9 0 0 0 0 18 0
1 10 32.93 0 0 0 0 0
2 7 0 10 0 0 0 0
3 6 0 0 10 0 0 0
4 6 0 0 0 10 0 0
5 8 0 0 0 0 19 0
5 9 0 0 0 0 20 0
1 10 33.93 0 0 0 0 0
2 7 0 11 0 0 0 0
3 6 0 0 11 0 0 0
4 6 0 0 0 11 0 0
5 8 0 0 0 0 21 0
5 9 0 0 0 0 22 0
1 10 34.93 0 0 0 0 0
0 10 20 30 40 50 60 70 80 90 1000
1
2
3
4
5
6
7
Column AG
2 7 0 12 0 0 0 0
3 6 0 0 12 0 0 0
4 6 0 0 0 12 0 0
5 8 0 0 0 0 23 0
5 9 0 0 0 0 24 0
1 10 35.93 0 0 0 0 0
2 7 0 13 0 0 0 0
3 6 0 0 13 0 0 0
4 6 0 0 0 13 0 0
5 8 0 0 0 0 25 0
5 9 0 0 0 0 26 0
1 10 36.93 0 0 0 0 0
2 7 0 14 0 0 0 0
3 6 0 0 14 0 0 0
4 7 0 0 0 14 0 0
5 0
6
0 10 20 30 40 50 60 70 80 90 1000
1
2
3
4
5
6
7
Column AG
Use
SN
Project Sample
Revision 1 0
Date 7Nov12 20Jun12Supply
fac 50 60
Vac (lo) 187 102
Vac (nom) 220 120
Vac (hi) 253 138
Vac (max) 264 144
BridgeVd 0.65 0.65
Transient ProtectionRtp 55 22
LED 4 3
Summary and Optimization
Parameter LimitLight 1600 800
Lum Eff 100 90Line reg, hi 10 20Line reg, lo -10 -20
Nled 255 200Extra LEDS 40 35
max Pled 125 125Pout 10 10
PF 0.9900 0.9000LED SOA 0.8500 0.9500
Pdrv 1.0000 0.8000Elec Eff 92 85min Itap 33 30
THD 10 15Dir Dir
min minmin minmax maxmax maxmax maxmax maxmax maxnom nommin minmax maxmax maxmin minmin minmax max
Diverse Devices — Everlight
0.2
Efficiency vs Efficacy
Efficiency is accomplishing a task relative to the amount of energy expended.
Efficacy is the degree to which a task achieves a desired result.
Oxford English dictionary definitions
Efficiency: See Efficient.
"fluorescent lamps are efficient at converting electricity into light"
Efficacy: the ability to produce a desired or intended result:
"there is little information on the efficacy of this treatment"
When referring to light output relative to energy input, efficiency is the proper term.
Efficiency is often assumed to be strictly unitless. Input units must equal output units (e.g. W/W) and efficacy is used when units are involved (e.g. lm/W). This is an incorrect assumption and a misuse of efficacy.
Efficacy is how effective a task is in accomplishing its intended purpose without regard to energy spent. An antibiotic exhibits 100% efficacy if it eliminates the entire population of microbes it was intended to eradicate. Energy spent in eliminating the microbes is irrelevant.
On the other hand, effficiency need not be unitless. Automobile fuel efficiency is expressed as miles/gallon. Miles traveled is the task and gallons of gasoline is a measure of energy spent.
Efficient: (especially of a system or machine) achieving maximum productivity with minimum wasted effort or expense:
Note the especially pertinent example usage of ‘efficient’. Also note the lack of any reference to energy in the definition of efficacy.