Current limiting method, current limiting-constant current combined power circuit and control method thereof
A technology of power supply circuit and current limiting method, which is applied to battery circuit devices, circuit devices, current collectors, etc., can solve the problems of high cost, high temperature of current limiter, complicated circuit, etc., so as to solve the problem of load stroboscopic and reduce power consumption. , the effect of solving the power consumption
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[0033] The semiconductor power device in the present invention can adopt various power devices, and MOSFET is taken as an example in the specific embodiment;
[0034] like Figure 5 As shown, the current limiting-constant current combined power supply circuit of the present invention includes an AC power supply, a rectifier bridge DB1, a current limiting-constant current circuit 101 and a load R1, wherein the AC power supply is a sine wave alternating current, and the rectification The bridge includes two input terminals and positive and negative output terminals, and the two input terminals are connected to the AC power supply; the current limiting-constant current circuit includes four terminals, wherein the first terminal is connected to the positive output terminal of the rectifier bridge, and the second terminal It is connected to the negative output terminal of the rectifier bridge, the third terminal is connected to one end of the load, and the fourth terminal is connec...
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