Electric Blanket Thermostat
Source: InternetPublisher:拳制龙 Keywords: Thermostat circuit Updated: 2024/10/16
This thermostat is a "sun brand AC220V automatic thermostat" produced by Daemyung Electric Co., Ltd. in South Korea. It is an earlier product. Connect a 60w bulb for a dummy load test, and the output voltage between H1-H2 is 90V~220V. R1 and C1 are thyristor protection circuits, and C2, D1, D2, and R4 form a zero-crossing detection circuit. This thermostat actually has no automatic constant temperature function, and the resistor R5 connected between the output terminals S1 and S2 is useless. Therefore, this thermostat can also be directly applied to domestic electric blankets.
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