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Power conversion device control board

A technology for power conversion devices and control substrates, which can be used in circuit devices, output power conversion devices, multilayer circuit manufacturing, etc., and can solve problems such as drive line noise

Active Publication Date: 2017-05-31
AISIN AW CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, in the power supply control circuit disclosed in the aforementioned Patent Document 1, since the transformer is driven by a switch using a transistor, noise generated from the drive line may become a problem.

Method used

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  • Power conversion device control board

Examples

Experimental program
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Embodiment Construction

[0019] Hereinafter, each embodiment will be described in detail with reference to the drawings.

[0020] figure 1 It is a figure which shows an example of the electric circuit 1 including the inverter 4. The electric circuit 1 is for driving a motor, for example.

[0021] The electric circuit 1 includes a battery 2 , an inverter (an example of a power conversion device) 4 , and a smoothing capacitor C1 . The frequency converter 4 is electrically connected to the motor 5 . The motor 5 may be a driving motor used in a hybrid car or an electric car. In this example, the motor 5 is a 3-phase AC motor. The smoothing capacitor C1 is electrically connected between the positive side and the negative side of the battery 2 .

[0022] The inverter 4 includes a plurality of switching elements Q1 to Q6. Switching elements Q1 to Q6 are IGBTs (Insulated Gate Bipolar Transistor). However, instead of the IGBT, another switching element such as a MOSFET (Metal Oxide Semiconductor Field-E...

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PUM

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Abstract

This power conversion device control board includes: a board main body, i.e., a multilayer board; a plurality of drive circuits, which are respectively provided to arms of the power conversion device, and which drive switching elements of the corresponding arms; a power supply control circuit; an insulation region that insulates the power supply control circuit and the drive circuits from each other; a plurality of insulation transformers, which are provided corresponding to the drive circuits, respectively, and are disposed on the front surface of the board main body across the insulation region, said insulation transformers connecting the power supply control circuit and the corresponding drive circuits to each other in an insulation state; and connecting lines, which electrically connect the insulation transformers and the power supply control circuit to each other, and at least a part of which extends to a region of an inner layer of the board main body, said region overlapping the insulation region when viewed in the perpendicular direction with respect to the front surface of the board main body.

Description

technical field [0001] The present invention relates to a control board of a power conversion device. Background technique [0002] There is known a motor control device that uses a transformer to insulate a low-voltage circuit area having a power supply control circuit and each high voltage circuit of each drive circuit provided separately for each branch of an inverter circuit for supplying current to an AC motor. The fields of voltage circuits are combined to collectively control the voltages applied to the respective transformers, and only one power supply control circuit is commonly provided for all the transformers (for example, refer to Patent Document 1). In addition, in this motor control device, the power supply control circuit is a push-pull type. [0003] Patent Document 1: Japanese Patent Application Laid-Open No. 2009-130967. [0004] However, in the power supply control circuit disclosed in the aforementioned Patent Document 1, since the transformer is drive...

Claims

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Application Information

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IPC IPC(8): H02M1/08H02M7/48H05K1/02H05K3/46
CPCH02M7/003H05K1/0263H05K1/0298H05K2201/10022H05K2201/10053H05K2201/10166H02M1/32H02M3/335H02M3/33507H02M3/3382H02M7/53846H03K17/0828
Inventor 六浦圭太
Owner AISIN AW CO LTD