A half-bridge module inductive gate drive power supply based on four-layer pcb

A technology of gate drive and PCB circuit board, which is applied in the direction of current collectors, printed circuits, electric vehicles, etc., can solve the problems of large installation space, etc., and achieve the effects of saving material costs, facilitating high integration, and reducing volume

Active Publication Date: 2021-02-26
DALIAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this design method using discrete multiple PCB boards requires an installation space that is often larger than the volume of the high-frequency transformer.

Method used

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  • A half-bridge module inductive gate drive power supply based on four-layer pcb
  • A half-bridge module inductive gate drive power supply based on four-layer pcb
  • A half-bridge module inductive gate drive power supply based on four-layer pcb

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Experimental program
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Embodiment Construction

[0022] The specific implementation manner and working principle of the present invention will be further described in detail below in combination with the technical scheme and the accompanying drawings.

[0023] Such as figure 1 As shown, the invented half-bridge module inductive gate drive power supply is highly integrated on a PCB board. The PCB board includes four layers, the transmitting circuit and the receiving circuit are placed on the top layer of the PCB board, and the receiving coil 1, the transmitting coil and the receiving coil 2 are respectively depicted on the middle layer 1, the middle layer 2 and the bottom layer of the PCB board. Use the via holes to run through the entire PCB board, and connect different coils and corresponding circuits respectively. Depend on figure 1 It can be seen that the volume of the invented driving power depends on the size of the PCB board and the height of components in the circuit, and it is easy to achieve miniaturization and li...

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Abstract

The invention belongs to the field of wireless power transmission and provides a half-bridge module inductive gate drive power supply based on a four-layer PCB. The drive power supply has a four-layerPCB structure and comprises a transmitter and two receivers, wherein the transmitter is composed of a transmitting circuit and a transmitting coil; the receiver is composed of a receiving circuit anda receiving coil; the two receivers provide two ways of isolated power supply voltage for providing power for drive circuits of upper and lower bridge arm switches on an IGBT half-bridge module; thetransmitting circuit and the receiving circuit are placed in the top PCB layer; and the receiving coil, the transmitting coil and the second receiving coil are sequentially located in the first middlePCB layer, the second middle PCB layer and the bottom PCB layer. An inductive non-contact power transmission technology is adopted, completely no electrical contact exists between the transmitting coil and the receiving coil, and depending on the PCB insulation layer for isolation is realized; and each composition is highly integrated on the four-layer PCB, and miniaturization and light weight are realized easily.

Description

technical field [0001] The invention belongs to the field of wireless energy transmission, and relates to the design of a power supply for a gate drive circuit of a power semiconductor device, in particular to a half-bridge module inductive gate drive power supply based on a four-layer PCB. Background technique [0002] IGBT half-bridge module drive circuits usually require an isolated power supply, which must meet design specifications such as isolation voltage, volume, and weight. [0003] At present, the isolated drive power supply mainly uses power frequency transformers, high frequency transformers, non-contact power transmission and other methods for isolation. Although the power frequency transformer has strong insulation ability and is easy to increase the isolation voltage, it is bulky and heavy. High-frequency transformers are the mainstream isolation method for commercial drive power supplies today, but compared with common commercial drive chips, such as Avago's...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J50/12H02J7/02H05K1/14
CPCH02J7/025H05K1/144H02J50/12
Inventor 齐琛苏利娟陈希有吴茂鹏
Owner DALIAN UNIV OF TECH
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