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1

3C New Energy Efficiency Solutions

Eric Lan

May 21, 2009

� Industry innovations are driving the standardization of higher efficiency power supplies. Power designs need secondary-side synchronous rectification for 5V/3.3V to achieve efficiency needs

� Major customer like Dell, IBM, HP, Fujitsu, Super Micro, Delta & Quanta anticipated.

Base Target efficiency level starting Jul 07

Bronze, target efficiency level starting Jul 08

Silver Target efficiency level starting Jul 09

Gold Target efficiency level starting Jul 10

Loading Efficiency Efficiency Efficiency Efficiency20% 80% 82% 85% 87%50% 80% 85% 88% 90%

100% 80% 82% 85% 87%

ATX 2nd Power SAM$

$10,000

$14,000

$18,000

2008 2009 2010 2011 2012

Year

$k

ATX 2nd Power SAM will grow to $16M in 2012. (isupplies)

Market Overview – PC SMPS

+3.3V+3.3V

+5V+5V

+12V+12VAC Input PFC

+ PWM

PFC+

PWM

Main+

MOS

Main+

MOS

SR + MOSSR + MOS

SR + MOSSR + MOS

Buck + MOSx2Buck + MOSx2

Integrated Synchronous Rectifier(SR) IC improves efficiency +2% over traditional Schottky diodes

Integrated DC/DC Buck regulator IC improves efficiency +1.5% efficiency over traditional (Mag Amplifier + Diode)

Integrated Asymmetrical Half Bridge (AsHB) IC improve efficiency +1.2% over traditional Double Forward topology

PFC+PWM comboIC improves efficiency +1% at light load condition

� Fairchild is positioned to provide the total solution

Innovative FPS IC reduces standby power below 100mW with no load SupervisorSupervisor

FAN480x

FSR6x0

FSBK130

FSBH0x70

SG65xx

Technology – PC SMPS

StandbyStandby +5V+5V

LLC Typical Application Circuit

� LLC Resonant Converter for LCD TV� VIN = 340V ~ 400V, Vo = 24V, Io = 8A� Eff = 94% at full load condition� No heat sinks is required up to 200W for FSFR2100

� AsHB Converter for ATX 85+� VIN = 370V ~ 410V, Vo = 12V, Io = 30A� Eff = 93% at full load condition� FSFA2100 is used� Current Doubler & Synchronous Rectifier

AsHB Typical Application Circuit

Provide planar MOSFET and super-junction MOSFET since 2004

600V MOSFET A*RDS(on)

0

20

40

60

80

100

120

140

1995

1996

1997

1998

1999

2000

2001

2002

2003

2004

2005

2006

2007

2008

2009

2010

Introduction Year

A*R

ds(o

n) [m

W.c

m2]

AFET

QFET

BFET

CFET

UniFETTM

SuperFETTM

SupreMOSTM

UniFETTM2

●●●● Planar■■■■ Super-Junction

MOSFET Technology for Better Efficiency

Super-junction MOSFET provides best FOM (Figure-of-Merit)

0

10

20

30

40

50

60

70

80

90

100

0 200 400 600 800 1000 1200 1400

RDS(on),max (mΩΩΩΩ)

Qg

,typ

(nC

)47A

36A

21A

16A13A

11A

9A

17A

7A

10A12A

15APlanar MOSFET

SJ MOSFET

@ BVDSS, 600V

TO220 MAX. DIE

Benefits of Super-Junction MOSFET

� PFC Stage• Turn on switch with minimum drain-source voltage• Turn on/off switch with ZCS

� PWM Stage• Conduction loss reduction by PFC pre-regulator• Switching loss reduction by QR PWM valley switching

� 2nd-ary Side • Conduction loss reduction by SR combo controller

0.28230V

0.8610.501W<1W

115V0.5W

2.283

1.456

0.779

2.321

1.473

0.27

Input(Pin)

W

1.715W

1.007W

0W

Output(Po)

Spec.(Pin)

VAC

230V

230V

230V

<2.4W

<1.7W

<0.3W

115V

115V

115V

1.7W

1W

0W

Spec.(Po)

Light load Power Consumption

1.53%

90.35% 90.50%

90.09%

89.04%

91.45%91.81%

91.51%

90.57%

88.50%

89.00%

89.50%

90.00%

90.50%

91.00%

91.50%

92.00%

20 30 40 50 60 70 80 90Output Watt.

Eff

icie

ncy

FAN6921+Schottcky FAN6921+FSR510

90+ SolutionBCM PFC + QR PWM + SR Combo Controller

19V/90W Efficiency

� Phase Management• Minimizes power losses at light load

• Automatic phase-drop and phase-add

� Valley Switching Technology• Minimizes COSS losses at turn-on of the MOSFET

switching

� Strong Integrated Gate Drivers• Reduce switching losses

� Low Current Sense Thresholds• Low Conduction Losses

� Maximum Switching Frequency Clamp

� Low Start-up and Operating Currents

Efficiency vs. Load(230 VAC Input, 400 VDC Output, 400 W)

85

90

95

100

0 10 20 30 40 50 60 70 80 90 100

Output Power (%)

Effi

cie

ncy

(%)

With Phase Management

Without Phase Management

Efficiency vs. Load(115 VAC Input, 400 VDC Output, 400 W)

85

90

95

100

0 10 20 30 40 50 60 70 80 90 100

Output Power (%)

Effi

cien

cy (

%)

With Phase Management

Without Phase Management

FAN9612 Interleaved Dual BCM PFC

� Technology trend are Less Power Consumption, Thinner. 2Lamps solution is becoming main stream from previous 4Lamps

� High end/Big Panel Size LCD TV driving the LED Backlight (Samsung, Sony, LG)

� New LEDs technology improve Reliability achieve Higher Lighting Efficiency (MCD/W)

Display segment SAM$

$-

$10,000

$20,000

$30,000

$40,000

$50,000

$60,000

2008 2009 2010 2011 2012

Year

$k

Panel LED Backlight Panel CCFL

CCFL & LED backlight SAM will grow to $60M and $2.6M respectively in 2012. (isupplies)

Market Overview – Display Segment

180Watt300 / 180Watt300Watt250WattOutput Power

PSUDirect inverter/ PSUDirect inverterPSU / Direct inverterPower type

50inch40~50inch40/42inch32~42inchMain size

CRMCRMCRMCRMPFC

150mWatt

82%

CCFL

2009

100mWatt130mWatt170mWattStdby

?85%80%Efficiency

LED BLUCCFL / LEDCCFLBacklight

201120102008

high efficiency, low standby, LED BLU, Slim, BOM reduction

Inverter

Multi Power

13V Audio

5.3V Stand by12V or 5.3V Main

Lamps

Lamps

400V

Std byPower

5V Stand by

PFCMain

Power

Std byPower

400V24V Inverter

12V Main

5V stand by

PFC

Direct Inverter Type PSU Type

The Technical Trend – LCD TVs

Power Supply

INVERTER

Inverter 112V

AC Input(90~265Vac)

5V for Video board

Inverter X

Lamps

......

Power Supply Backlight Inverter

22inch22inch19inch17~19inchMain size

Less than 30Watt30Watt40Watt / 28Watt40WattPower

150mWatt

82%

4lamps / 2lamps

2009

100mWatt130mWatt170mWattStandby

?85%80%Efficiency

LED BLU2lamps4lamps CCFL# of lamps

201120102008

2lamps, high efficiency, low standby, BOM reduction

� Samsung ‘09 DPMS spec. : Pin = 75mW (5V*15mA) � Pout = less than 250mWatt

The Technical Trend – LCD Monitors

• Discrete solution is major portion forCFL

• Get Compact (Integration solution)• Get Thinner T8 � T5 (High efficiency and Reliability, EOLL function required)

• Dimming solution

• Market : Still big potential• Philips, GE, Osram, Lutron, ULT

(Source : Cree, Inc. in Darnell 2008)

• High efficiency• Longer Life time• Environment (Hg free, No UV)• Cost issue• Dimming• Broad light color

• Market : Emerging, Government Driving.• Philips, GE, Osram and Many makers join.

Efficiency, Life Time, Environment

• Ban Incandescent• Ban Magnetic ballast• Get Phasing out

10K-20K

35-40

60-75

Metal halide

16K

65-75

120-140

Low-pressure sodium

Type Incand. Halogen CFL T12 Fluor. T8 Fluor. T5 Fluor.High-

pressure sodium

HB LED

Datasheet lm/W 17 20 50 60 85-90 90 95-110 99

Usable lm/W 10-17 12-20 25-30 45-50 65-70 62 55-65 65-75

Lifetime (hours) 3K 10K 10K 20K 20K-30K 30K 24K 50K+

Market Overview – Illumination

BuckPSR

FlybackCRM PFC

Single Stage PFCFlyback

CRM PFCQR PWM Combo

LLCResonant

14

FAN6961 + FAN6300

FAN6921 + FSR510

Ornament Lighting (~ 25W)

Isolation topology

Non-Isolation topology

Indoor/Outdoor (25 ~ 100W)

Street (100W~)

FAN100

FAN102

FSEZ1016

FSEZ1216

FAN7527B

FAN6961FAN7529

FAN6300

FSDM0465RE

FSQ0x65

FSR510 FAN7621

FSFRxx00

LED Lighting Solutions

under development

under development under

development

� Features• Constant-Voltage (CV) and Constant-Current (CC) control

without secondary-feedback circuitry• PSR PWM Controller with 1A 600V VDMOS integrated in to

7-pin wide creepage package• Green-mode function: PWM freq linearly decreasing• Fixed PWM frequency at 42kHz with frequency hopping to

solve EMI problem• Low start-up (10uA) and operating current (6mA)• Peak-current-mode control• Cycle-by-cycle current limiting• Various Protection; VDD UVLO, VDD OVP, OTP, and gate

output clamped at 18V.

� Application• Indoor/ Outdoor LED lighting

� Reference design• Non-isolated Flyback Topology• Less components count• Space saving and easy PCB layout• Stable and precise constant-current control across wide

input voltage range• More flexible and simple solution

15

Introduction of FSEZ1016A

COMI

FSEZ1016A

COMV

Phone Makers Set the Game Rule for Standby Power

FSEZ1216 (1A/600V) DIP8 : 37 points

3W Charger Design

� Small mechanical case for low cost shipping.� No need Snubber under 3W with 700V MOS.� Lower inserting cost:� Suitable 0.5A MOSFET under 4W. � High Efficiency & Very Low St-by power.

� Stand by : 26.6mW @264Vac� CV : ±2.7 %� CC : ±2.1%� Ripple : 150mVp-p under� CEC : 70.64% / 68.24% @AWG26 (65.5%)� EMI : 6dB

Application Market Trend Technical Trend

White Good(CAGR: -1.3%)

Major solution is power module in AsiaDiscrete solution is available in AM, EU

Inverter based variable speed motor control toimprove efficiency3 phase HV IC with protections or 3 * HB types withprotections

PDP(CAGR: 10.8%)

Hitachi abandoned PDP business and COC launchedPDP businessDramatically dropping set price to compete with LCDTV

Topology: Weber-> Sakkai-> Pass-less Isolation solution is available

Electric carts(CAGR: 14.7%)

Discrete solution is major portionLocal IC vender appeared with low cost version

Segment for E-bike and E-scooterLow voltage process is needed to cut down cost.

HID(CAGR: 2.9%)

Street, Projector and outdoor application get migratinginto LED solution.Metal Halide produce and intense "white“ for vehicles& commercial use.High/Low pressure sodium lamps produce a "yellow“ for indoor/outdoor & Street light.

Conventional Buck + full bridge is the mostpopular solutionDSP control solution is increasing to make convenient and stable operationMigrating into LED solution

IndustrialPower(CAGR: 5.2%)

High power solution (over 1KW)2-2 or 1-2 HB solution is popular

Opto coupler & trans solution has major share

Fast turn on/ off and turn rising / fallingHigh speed frequencyAdditional control & protection are mandatory

(dead time, shutdown)

(CAGR : 2007 to 2012)

Contribution to Energy Efficiency System,

Market Overview – HV IC

� Background

� China government announced ‘New energy saving regulation’ in Oct 2009. -. Non-Inverter A/C : Level 2 (power efficiency @ 3.2) -. Inverter A/C : Level 2 (power efficiency @ 4.5 But the regulation is not yet launched, maybe postpone to Q1FY10 due to high inventory of normal air/con in market ~15Mset.

� What manufacturers need to increase EER / SEER?

� Keep on traditional control solution with higher efficiency compressor, improve evaporator coil & condenser coil, cost will be increased AirconStructure

� Some makers replace control board’s linear power supply with SMPS to increase efficiency

� Develop inverter type (variable speed) air/con and refrigerator

� Replacing traditional AC motor to brushless DC motor for indoor and outdoor fan in air/con

China Energy Label for White Goods

FAN Motor

Compressor

SPM5

SPM3

PFC-SPM

Application Example

Motor

Drying Fan

SPM3

* Low Voltage Driveunder 40V (Currently)

* High Voltage Drive500V 1A grade (Future)

SPM

5

AC Input

CONTROL BOARD

Compressor Motor

Evaporator Fan Motor

VSD

SPM3

or

SPM4

� Refrigerators

� Washing Machines� Air Conditioners

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