Developer temperature control circuit diagram

Published:2011/8/9 2:13:00 Author:Rebekka | Keyword: Developer temperature control | From:SeekIC

The figure shows the developer temperature control circuit. When the power supply is open, the temperature is low, the value of the R1 is high, so that the 5G31 outputs high level because the input potential of the positive end is higer than the input potential of the negative end.The relay J suck closes, RL starts to heat because the power supply is open and makes the temperature high. When the temperature rise to the control temperature, the bridge turns to balance. The 5G31 outputs low level because the potential of negative input terminal is higher than the positive input terminal . The relay J is disconnected, RL stops to heat because the power supply is closed.



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