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Eggs automatic incubator 3

2014-11-09 13:28  
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Eggs automatic incubator 3
The eggs automatic incubator circuitis composed ofthe power supplycircuit, temperature / ventilation control circuit,eggs automatically turning circuit and temperature indication circuit, and it isshown in Figure 4-3. Power supply circuit consists of the power switch S3, power transformer T, bridge rectifier UR and capacitors C2-C4, current limiting resistor Rl2, zener diode VS. Eggs automatically turning circuit consists of resistors Rl3-R16, potentiometer RP6, capacitors C7-C9, time-base integrated circuit IC2, transistor V3, diode VD2, relay K2, limit switch Sl, trigger switch and DC electric motor M2 . IC2 and its external RC components form the steady-state circuit; V3 and Rl3, R14, VD2, K2 and Sl form the the control circuit of M2.