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Inverting system and method for medium/low-power non-contact power transmission

A non-contact, power transmission technology, applied in the direction of converting AC power input to DC power output, output power conversion devices, electrical components, etc., can solve the problems of low switching frequency, high cost, large volume, etc., and achieve reliability Strong, stable performance, low cost effect

Inactive Publication Date: 2018-06-29
SHENYANG INST OF AUTOMATION - CHINESE ACAD OF SCI
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Problems solved by technology

[0002] There are many kinds of inverters, and various inverters emerge in endlessly, and the inverters all use IGBT as the four-arm switch tube. IGBTs are often characterized by high cost, low switching frequency, and large volume. In addition, the inverter The drive end of the bridge arm switch of the inverter is directly connected to the digital drive end, which leads to the fact that once the inverter is damaged, it is difficult to guarantee the safety of the digital core

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  • Inverting system and method for medium/low-power non-contact power transmission
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  • Inverting system and method for medium/low-power non-contact power transmission

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Embodiment Construction

[0040] The charging system will be described in detail below in conjunction with the accompanying drawings, so as to better understand the present invention.

[0041] as attached figure 1 As shown, this one is used for small and medium power non-contact power transmission inverter system, which is characterized in that the system includes a digital processor control module 1, an isolation drive module 2, and a four-leg inverter module 3, and the above three The modules are all independent module structures. The output port of 1 is connected to the input port of the drive circuit module 2, and the PWM frequency of 1 determines the frequency of the electric signal after inversion. The output of 2 is connected to the four-leg inverter module 3 to control the state of the switching tubes in 3 to achieve the purpose of inverting the DC signal into an AC signal.

[0042] The isolated drive module mentioned in the present invention is as attached figure 2 As shown, the two sets o...

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Abstract

The invention relates to an inverting system and method for medium / low-power non-contact power transmission. The inverting system comprises a digital processor module, an isolation drive module and afour-bridge arm module which are connected in turn. The system can invert a medium-power DC voltage signal into a stable AC signal. The inverter uses an isolation drive method to completely isolate adigital signal and a to-be-inverted electrical signal. The stability of the system is greatly increased. It is ensured that the circuit in the digital area is not damaged when there is an accident inthe inverting area. Thus, the digital core of the system corresponding to the inverter is guaranteed reliably.

Description

technical field [0001] The invention belongs to the field of non-contact charging systems, in particular to an inverter system and method for small and medium power non-contact power transmission. Background technique [0002] There are various types of inverters, and various inverters emerge in endlessly, and the inverters all use IGBT as the four-arm switch tube. IGBTs are often characterized by high cost, low switching frequency, and large volume. In addition, the inverter The drive end of the bridge arm switch of the inverter is directly connected to the digital drive end, which leads to the fact that once the inverter is damaged, it is difficult to guarantee the safety of the digital core. [0003] The present invention adopts MOSFET as the switch of the bridge arm of the inverter. Since the power of the charger involved is not high, the volume should be considered to be as small as possible, so the inverter bridge arm abandons the general-purpose IGBT switch tube, and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02M7/5387H02M7/5395
CPCH02M7/53873H02M7/5395
Inventor 袁学庆李晓鹏许凯林李博
Owner SHENYANG INST OF AUTOMATION - CHINESE ACAD OF SCI
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