LED lights inside the refrigerator circuit diagram


Posted on Mar 28, 2007

As shown in the refrigerator for the LED lighting circuit schematic. The circuit is composed of eight LED lights white LED high-brightness light-emitting tube. LED are mounted


LED lights inside the refrigerator circuit diagram
Click here to download the full size of the above Circuit.

in a white transparent plastic pipe, plastic pipe length equal to the height of the refrigerator cabinet. AC power via the door switch SB and fuse FU in the power transformer TR secondary to Double 6V AC voltage is full-wave rectified by the diode VD1, VD2, limiting filtering capacitor C1, the resistor R1, the zener diode ZD1 smooth DC stable 12V power supply to the LED light bar. White LED forward voltage single 3.1 V, 12V supply, each LED power 0.06 W, 4 only 0.25W, a total of two groups, the total power consumption of less than 1W. Thus, LED total luminous intensity can be close to 40 lm, only a weak heat and consume very little power. SB is the refrigerator door control switch, when the switch lighting the refrigerator LED, SB connection have to be changed then.




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