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

Inactive Publication Date: 2021-01-22
NANJING POLYTECHNIC INSITUTE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For the more important aspects of system debugging, waveform observation and actual fault analysis in the full-bridge converter, almost all the training devices are not involved, which makes the learning obstacles for students in the full-bridge converter relatively large

Method used

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  • Three-level full-bridge converter practical training examination device

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Embodiment Construction

[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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PUM

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Abstract

The invention discloses a three-level full-bridge converter practical training examination device, which is provided with a tetragonal box body, transparent panels are arranged on the periphery and the upper portion of the tetragonal box body, and a three-level full-bridge converter and an auxiliary circuit are arranged at the bottom of the box body. The three-level full-bridge converter circuit comprises an input EMI (01), an input rectifier (02), an input filter (03), a TL ZVZCS PWM DC / DC converter (04), UC3875 and SG3525 control circuits (05), a drive circuit, (06) and a protection circuit(07), wherein the auxiliary circuit comprises a relay, and the three-level full-bridge converter circuit is electrically connected with the auxiliary circuit. Fault points K1 to K6 are arranged in thethree-level full-bridge converter, and the fault points are connected with a fault operation switch on a panel of the box body through a relay of the auxiliary circuit.

Description

technical field [0001] The invention relates to a training and assessment device for a full-bridge converter, in particular to a training and testing device for a three-level full-bridge converter. Background technique [0002] The full-bridge converter is an important aspect of the application of power electronics technology. In traditional vocational education, experiments and training related to full-bridge converters use training devices made by teaching instrument manufacturers. For the more important aspects of system debugging, waveform observation and actual fault analysis in the full-bridge converter, almost all the training devices are not involved, which makes the learning obstacles for students in the full-bridge converter relatively large. In addition, as a new type of high-voltage and high-power converter, the multi-level converter overcomes many shortcomings of the two-level circuit while obtaining high-quality output waveforms. [0003] Therefore, there is ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09B23/18
CPCG09B23/182G09B23/183
Inventor 陈柬严金云王颖
Owner NANJING POLYTECHNIC INSITUTE
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