Integrated power conversion circuit

A power conversion and integrated technology, applied in the direction of adjusting electrical variables, converting DC power input to DC power output, electrical components, etc., can solve the problems of occupying a large space, unable to meet the miniaturization of products, and high cost of power modules

Inactive Publication Date: 2015-05-06
BEIJING RES INST OF PRECISE MECHATRONICS CONTROLS +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the selection of power devices, IGBT is more common. The traditional design idea generally directly selects the power module to complete the secondary power conversion of all power drive power supplies, but the control drive IGBT requires 4 groups (8 channels) of independent +15V and -8V power supplies , if the power module solution is selected, a power module needs to be selected for each drive power supply, which will occupy a large space on the PCB layout, which canno

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Embodiment Construction

[0026] An integrated power conversion circuit proposed by the present invention will be further introduced below in conjunction with the accompanying drawings and embodiments:

[0027] An integrated power conversion circuit, including an input filter circuit, a PWM chopper circuit, a regenerative energy absorption circuit, a voltage feedback circuit, a transformer circuit, and a rectification output circuit; wherein the input filter circuit, the regenerative energy absorption circuit, the transformer circuit, and the rectification output circuit connected in sequence; the transformer circuit, the voltage feedback circuit and the PWM chopper circuit are connected in sequence to form a closed loop.

[0028] The working principle of the present invention is as follows: the input voltage +28V first passes through the RC filter circuit composed of resistor R6, capacitor C10 and capacitor C11 to supply power for the switch modulation management chip U1, and at the same time passes th...

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Abstract

The invention belongs to the technical field of motor control, and particularly relates to an integrated power conversion circuit. The invention aims to provide an eight-output integrated secondary power conversion circuit. The integrated power conversion circuit has a closed-loop adjustment function, and a switching integrated secondary power conversion circuit is adopted to supply power to multiple power sources required by a power driving circuit. The integrated power conversion circuit comprises an input filter circuit, a PWM chopper circuit, a regenerative energy absorption circuit, a voltage feedback circuit, a transformer circuit, and a rectifier output circuit, wherein the input filter circuit, the regenerative energy absorption circuit, the transformer circuit and the rectifier output circuit are connected in sequence, and the transformer circuit, the voltage feedback circuit and the PWM chopper circuit are connected in sequence to form a closed loop.

Description

technical field [0001] The invention belongs to the technical field of motor control, and in particular relates to an integrated power conversion circuit. Background technique [0002] Nowadays, with the maturity and progress of power electronics technology, the functions of motor control drivers are becoming more and more powerful, the design of power drive power conversion circuits is more complex, and the requirements for secondary power supply are also getting higher and higher. In the selection of power devices, IGBT is more common. The traditional design idea generally directly selects the power module to complete the secondary power conversion of all power drive power supplies, but the control drive IGBT requires 4 groups (8 channels) of independent +15V and -8V power supplies , if the power module solution is selected, a power module needs to be selected for each drive power supply, which will occupy a large space on the PCB layout, which cannot meet the needs of pro...

Claims

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Application Information

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IPC IPC(8): H02M3/335H02M1/14H02M1/32
CPCH02M1/14H02M1/34H02M3/335H02M1/348
Inventor 龙海峰贾淑绒郑再平姜迪开陈鹏
Owner BEIJING RES INST OF PRECISE MECHATRONICS CONTROLS
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