Thermal resistor temperature control refrigeration birdsong phonation circuit

Published:2011/4/29 21:24:00 Author:Nicole | Keyword: thermal resistor, temperature control refrigeration, birdsong | From:SeekIC

The circuit is as shown, it consists of temperature detection circuit, power ON/OFF detection circuit, relay control motor circuit, birdsong phonation circuit and AC depressurization rectifier circuit. It keeps the temperature of the freezer within the setting temperature range, and it will send out a dulcet small bird sound.



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