Switching Control Circuits for Power Converters
A technology of a power converter and a control circuit, which is applied to the output power conversion device, the conversion of DC power input to DC power output, and the conversion of AC power input to DC power output, etc. Switching control circuit, etc.
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[0059] In order to make the structural features of the present invention and the achieved effects have a further understanding and recognition, preferred embodiments and detailed descriptions are specially used, which are described as follows:
[0060] see figure 2 , which is a circuit diagram of an embodiment of the switching control circuit of the present invention. The switching control circuit 100 is also a controller, which includes a switching circuit to receive the feedback signal V FB , to generate switching signal S W . The switching circuit includes a logic circuit and an input circuit (INPUT) 300 . The logic circuit includes a flip-flop 110 , an AND gate 115 , a comparator 150 , a NOR gate 151 and a NAND gate 152 . A clock generator 200 generates a clock signal C K , to determine the switching signal S W switching frequency. Clock signal C K It is coupled to a clock input terminal CK of the flip-flop 110 . An input terminal D of the flip-flop 110 receives ...
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