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Three-level DC-DC converter examination device

A DC-DC and converter technology, applied in the field of three-level DC-DC converter assessment devices, can solve problems such as large learning barriers for 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 DC-DC converter 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] An assessment device for a three-level DC-DC converter, which has a square box body, and transparent panels around and on the upper part, the transparent panel includes a start switch, a fault operation switch, an "input power circuit working status indicator" light, 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 DC-DC converter and auxiliary circuit are installed at the bottom of the box , the three-level DC-DC 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, the input rectifier (02) include...

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Abstract

The invention discloses a three-level DC-DC converter examination device, which is provided with a square box body, transparent panels at the periphery and the upper part, a three-level DC-DC converter and an auxiliary circuit arranged at the bottom of the box body, and the three-level DC-DC converter circuit comprises an input EMI (01), an input rectifier (02), an input filter (03), a TL ZVZCS PWM DC-DC converter (04), a UC3875 and SG3525 control circuit (05), a driving circuit (06), and a protective circuit (07); the auxiliary circuit comprises a relay, wires are connected between the three-level DC-DC converter circuit and the auxiliary circuit and between the three-level DC-DC converter circuit and the transparent panel according to electrical lines; wherein fault points K1 to K6 are arranged in the three-level DC-DC converter and are connected with a fault operation switch on the panel of the box body through the relay of the auxiliary circuit.

Description

technical field [0001] The invention relates to a practical training assessment device for a full-bridge converter, in particular to a three-level DC-DC converter assessment device. 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 an urgent need t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09B9/00G09B23/18
CPCG09B9/00G09B23/183G09B23/188
Inventor 陈柬
Owner NANJING POLYTECHNIC INSITUTE
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