Three-level full-bridge converter practical training examination device
A full-bridge converter, three-level technology, applied in the direction of instruments, educational appliances, teaching models, etc., can solve the problem of large learning disabilities of full-bridge converters, and achieve the effect of improving professional skills
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[0009] Below in conjunction with accompanying drawing and embodiment the present invention is specifically introduced as follows:
[0010] A three-level full-bridge converter training and assessment device, which has a square box, and the surrounding and upper parts are transparent panels. The transparent panel includes a start switch, a fault operation switch, an "input power circuit working status indicator" lamp, and a " "Three-level conversion circuit working status indicator" light, "inverter output" test hole, "transformer primary side" test hole, "transformer secondary side" test hole, and a three-level full-bridge converter and auxiliary circuit are installed at the bottom of the box , the three-level full-bridge converter circuit includes input EMI (01), input rectification (02), input filter (03), TL ZVZCS PWM DC-DC converter (04), UC3875 and SG3525 control circuit (05) , drive circuit (06), protection circuit (07), the input EMI (01) includes an input power fuse, th...
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