Control circuit of coupled inductor interleaved four-switch buck-boost bidirectional converter
A bidirectional converter, coupled inductance technology, applied in the direction of regulating electrical variables, control/regulating systems, high-efficiency power electronic conversion, etc. Control methods and other issues to achieve the effect of reducing hardware costs, easy programming, and reducing switching losses
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[0035] The technical solutions of the present invention will be described in detail below in conjunction with the accompanying drawings.
[0036] The control circuit of the coupled inductor interleaved parallel four-switch buck-boost bidirectional converter involved in the present invention, such as Figure 5 shown. The coupled inductor interleaved parallel four-switch buck-boost bidirectional converter includes a DC power supply 1 , a bus capacitor 2 , a coupled inductor interleaved parallel four-switch buck-boost bidirectional converter 3 , a filter capacitor 4 and a battery 5 . The control circuit is a soft switch control circuit 6 . The soft switch control circuit includes two voltage sensors, a current sensor, two subtractors, two data buses, four arithmetic units, a voltage regulator, a current regulator, a multiplier, two comparators, two Strobe, a scaler, and a PWM signal generator and phase shifter; as follows:
[0037] The first voltage sensor samples the voltage ...
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