Non-symmetrical PWM control type ISOP full-bridge direct-current converter and control method thereof
A technology of DC converter and converter, which is applied in the direction of DC power input conversion to DC power output, control/regulation system, output power conversion device, etc. It can solve the problems of voltage dividing capacitors burning out components, etc., and achieve the control method Simple, reduced system volume, reduced ripple effect
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[0046] The present invention will be further described below in conjunction with the accompanying drawings.
[0047] figure 1 It is a schematic diagram of the main circuit of the ISOP inverter system composed of N converter modules.
[0048] Such as figure 2 As shown, an ISOP full-bridge DC converter controlled by asymmetric PWM includes an input side and an output side. The input side includes a DC power supply, an input inductor and three converter modules; the output side includes three output modules and a output resistance;
[0049] Each converter module of the full-bridge DC converter includes an input capacitor, an inverter bridge composed of four switching tubes and a primary side of the transformer; wherein, the first switching tube Q 11 and the second switch Q 12 Composing the first bridge arm of the inverter bridge, the third switching tube Q 13 and the fourth switching tube Q 14 Form the second bridge arm of the inverter bridge. Each output module includes ...
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