Positive and negative bipolar gate drive circuit and electronic device

By introducing a driving unit consisting of a voltage regulator, controller, transistor module, and capacitor module into the positive and negative bipolar gate driving circuit, positive and negative voltages are provided to the power device, solving the problem of complex structure in the prior art, realizing a simplified driving circuit design, reducing cost, and improving the compactness and reliability of the circuit.

CN115833537BActive Publication Date: 2026-05-29SUZHOU WATECH ELECTRONICS CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SUZHOU WATECH ELECTRONICS CO LTD
Filing Date
2022-12-09
Publication Date
2026-05-29

AI Technical Summary

Technical Problem

The existing positive and negative bipolar gate drive circuit structure is too complex, resulting in high cost and difficulty in production.

Method used

The system employs a positive and negative bipolar drive unit, including a voltage regulator, controller, transistor module, inverter module, and capacitor module, to provide the driven power device with a positive gate turn-on voltage and a negative gate turn-off voltage, thus simplifying the drive circuit structure.

Benefits of technology

It achieves positive and negative bipolar gate drive with a simple structure, reducing costs and improving production efficiency, circuit compactness, and reliability.

✦ Generated by Eureka AI based on patent content.

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    Figure CN115833537B_ABST
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Abstract

The application provides a positive and negative bipolar gate drive circuit and an electronic device. The positive and negative bipolar gate drive circuit comprises an externally driven power device and a positive and negative bipolar drive unit. The positive and negative bipolar drive unit is electrically connected with the driven power device and is used for providing a positive gate opening voltage and a negative gate closing voltage for the driven power device. The positive and negative bipolar drive unit is used for providing the positive gate opening voltage and the negative gate closing voltage for the driven power device, so that the purpose of realizing the positive and negative bipolar gate drive circuit with a simple structure is achieved, and the problem of excessively complex structure in the positive and negative bipolar gate drive circuit of the prior art is solved.
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