Power supply module, power supply system composed thereof, and control method of power supply system
A power module, power output technology, applied in control/regulation systems, electrical components, regulating electrical variables, etc., can solve problems such as increasing circuit complexity, reducing power supply reliability, and reducing power supply applicability
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no. 1 example
[0050] figure 1 It is a functional block diagram of the power module of the first embodiment of the present invention, and the power module includes:
[0051] Including at least 7 terminals: power input positive Vin, power input ground GND, power output positive Vo, power output ground 0V, output voltage adjustment terminal Trim, current signal input terminal Sig- and control output terminal Sig+;
[0052] Also includes unit circuits: isolated power conversion circuit, control circuit, current detection circuit, sampling control circuit and comparison control circuit,
[0053] The connection relationship is: the input terminal of the isolated power conversion circuit is connected to the power input positive Vin and the power input ground GND, the output terminal of the isolated power conversion circuit is connected to the power output positive Vo and the power output ground 0V, and one end of the isolated power conversion circuit is connected to the control circuit The input ...
no. 2 example
[0080] Such as figure 2 Shown is the functional block diagram of the second embodiment. It can be seen from the figure that the power module includes at least 6 terminals: power input positive Vin, power ground GND, power output positive Vo, output voltage adjustment terminal Trim, current signal input terminal Sig- and Control output Sig+;
[0081] Also includes: non-isolated power conversion circuit, control circuit, circuit detection circuit, comparison control circuit: the connection relationship is: the input terminal of the non-isolated power conversion circuit is connected to the power input positive Vo and the power ground GND, and the output of the non-isolated power conversion circuit The terminal is connected to the power output positive Vo and the control circuit; the input terminal of the current detection circuit is connected to the power input positive Vo, the output terminal of the current detection circuit is connected to the first input terminal of the compa...
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