Improved Buck converter based on pulse sequence control
A pulse sequence and converter technology, applied in the field of improved Buck converters based on pulse sequence control, to achieve the effect of eliminating low-frequency fluctuations
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[0012] The technical solution of the present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.
[0013] figure 1 It is a block diagram of a PT control improved Buck converter circuit, which is composed of an improved Buck converter and a PT control circuit. The PT control circuit is composed of comparator AC, D flip-flop DFF, AND gate AN1, AN2, OR gate OR, and drive circuit DR; the improved Buck converter includes: power supply E, MOS tube Q, diode D, coupled inductor T, Non-polar capacitor C 1 , the output filter capacitor C and the load R; it is characterized in that the improved Buck converter is evolved from the Buck topology, and the energy storage inductance in the Buck converter is replaced by a pair of coupling inductors T; the MOS tube Q leaks The pole is connected to the positive pole of the input power supply E; the same-named terminal on the primary side of the coupling inductor T, the cathode of the diode ...
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