Control circuit and control method of switching power converter
A technology of switching power supply and converter, which is applied in the direction of adjusting electric variable, control/regulating system, converting DC power input to DC power output, etc. It can solve the problems such as the variation of output voltage adjustment rate and the influence of output current control accuracy, and achieves Reduce ripple, good constant current characteristics, circuit achieve simple effect
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[0044] The present invention will be further described below in conjunction with specific embodiments and accompanying drawings, but the protection scope of the present invention should not be limited thereby.
[0045] figure 2 A simplified block diagram of a switching power converter according to an embodiment of the invention is shown. The switching power converter includes a power conversion circuit 302 , a switching power controller 300 and a sampling resistor Rcs. The input voltage Vin of the switching power converter provides an output current Iout to a load through the power conversion circuit 302 . The power conversion circuit 302 may be any suitable power conversion circuit, such as a transformer, an inductor, etc., that can be used to convert an input current / voltage into a desired target current / voltage. The switching power supply controller 300 is used to control the working state of the power conversion circuit 302 . Switching power supply controller 300 may in...
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