Chicken farm automatic filling light 2

Published:2011/8/11 22:24:00 Author:Ecco | Keyword: Chicken farm , automatic filling light | From:SeekIC

The chicken farm automatic filling light circuit is composed of the power supply circuit, metering circuit and dimming circuit, and it is shown in Figure 4-9. Power supply circuit is composed of the power switch S, power transformer T, rectifier diodes VDl-VD4, filter capacitors C2, C3, three-terminal voltage regulator integrated circuit IC, current-limiting resistor R4 and power indicator light-emitting diode VL. Metering circuit is composed of the photosensitive resistor RC, potentiometers RPl, RP2, resistors Rl, R2 and transistors Vl-V3. Dimming circuit consists of transistor V3, single-junction transistor VU, thyristor VT, resistors R2, R3, capacitor Cl and filling light EL.



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