r future kit ac non-contact voltage detector · ac non-contact voltage detector à¤Ã×èͧàª...
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FUTURE KIT
FUTURE KIT
HIGH QUALITY ELECTRONIC KITS
HIGH QUALITY ELECTRONIC KIT SET FOR HOBBY & EDUCATION
R
NO.1
Figure 2. Circuit Assembling
LEVEL 1
AC NON-CONTACT VOLTAGE DETECTOR
à¤Ã×èͧàªç¤ä¿ AC äÈÊÑÁ¼ÑÊ
CODE 946
NOTE: This circuit is used for education only.
ËÁÒÂà˵Ø: ǧ¨Ã¹Õéà»ç¹Ç§¨Ã·Õèãªéà¾×èÍ¡ÒÃÈÖ¡ÉÒà·èÒ¹Ñé¹
Figure 1. AC Non-Contact Voltage Detector Circuit
1
2
3
G
+9V
VR1
LED
A
K
++
++
FK946
T
red +
black -
POWER SOURCE 9V
9V
Electric Wire(AC line)
Not more than1 cm.
NOTE:
FUTURE BOX FB02 is suitable for this kit.
RESISTOR ELECTROLYTICCAPACITOR
TRANSISTOR
Watch the polarity!
LED
R .....Ω R
R
NPN
B
E
C
TRTR
KA
LEDKA
LED
LED
VR .....KΩ1
2
3
VR
VR
C
+
+
C .....µF
C
+
DIODED
K A
K
A
K
A
C .....µF
CC
CERAMICCAPACITOR
TRIMMERPOTENTIOMETER
Figure 3. Installing the Components
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