Aerator-used adjustable power supply based on thyristor over current protection circuit
An overcurrent protection circuit and thyristor technology, which is applied in the electronic field, can solve problems such as unstable electromagnetic oscillation frequency of aerators, inability of aerators to supply oxygen to goldfish, and unstable output voltage, etc., to ensure stability and improve stability , The effect of reducing leakage current and loss current
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[0017] Such as figure 1 As shown, the present invention mainly consists of a control chip U2, a transformer T, a diode rectifier U1, a resistor R6, a resistor R12, a polar capacitor C1, a polar capacitor C2, a polar capacitor C8, a diode D6, a thyristor overcurrent protection circuit, and a voltage Detection circuit, and voltage-controlled oscillation circuit.
[0018] When connected, the anode of the polarity capacitor C1 is connected to the positive output end of the diode rectifier U1, and its cathode is connected to the negative output end of the diode rectifier U1 and then grounded. The anode of the polarity capacitor C2 is connected to the anode output terminal of the diode rectifier U1, and its cathode is grounded. The positive pole of the polarity capacitor C6 is connected to the THRS pin of the control chip U2 through the resistor R6, and the negative pole thereof is connected to the TRW pin of the control chip U2. One end of the resistor R12 is connected to the RST...
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