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Inverter bridge control circuit and electric control equipment

An inverter bridge and control circuit technology, applied in circuit devices, electrical components, emergency power supply arrangements, etc., can solve the problems of complex control, prone to oscillation, difficult to cope with load conditions, etc., to save computing resources and save costs. Effect

Pending Publication Date: 2021-09-17
广东省洛仑兹技术股份有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In double-loop control, it is necessary to sample the output voltage and current, and the cost of the current sampling device is high
Moreover, the existing technology needs to debug two loop parameters, and the control is complicated, and it is difficult for one control parameter to cope with various load conditions
In addition, the double-loop control is prone to oscillation when working under light load
[0004] Therefore, the prior art has the technical problems of large resource occupation, instability and high cost

Method used

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  • Inverter bridge control circuit and electric control equipment
  • Inverter bridge control circuit and electric control equipment

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Embodiment Construction

[0030] The following will clearly and completely describe the technical solutions in the embodiments of the present application with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, not all of them.

[0031] The components of the embodiments of the application generally described and illustrated in the figures herein may be arranged and designed in a variety of different configurations. Accordingly, the following detailed description of the embodiments of the application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely represents selected embodiments of the application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without making creative efforts belong to the scope of protection of the present application.

[0032] H...

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Abstract

The invention provides an inverter bridge control circuit and electric control equipment. The inverter bridge control circuit comprises a direct-current power supply, an inverter bridge, a load resistor, an adjusting circuit, a first signal generator and a first voltage collector. The direct-current power supply is connected with the inverter bridge, and the load resistor is connected between two output ends of the inverter bridge. The first input end of the adjusting circuit is connected with the first signal generator, the second input end of the adjusting circuit is connected with the first voltage collector, the first voltage collector is connected with the direct-current power source in parallel, the output end of the adjusting circuit is connected with the inverter bridge, and the adjusting circuit is used for regulating the switching period duty ratio of the inverter bridge according to the reference voltage generated by the first signal generator and the first voltage collected by the first voltage collector. According to the invention, the switching period of the inverter bridge can be adjusted only by calculating the voltage parameter, the current does not need to be sampled and calculated, and the technical effects of saving cost and computing resources can be achieved.

Description

technical field [0001] The present application relates to the field of circuit control, in particular to an inverter bridge control circuit and electric control equipment. Background technique [0002] Voltage-type inverter technology is widely used in uninterruptible power supply (Uninterruptible Power Supply, UPS), industrial inverter power supply and new outdoor energy storage equipment. The lower cost inverter bridge can bring great economic value. [0003] The existing inverter bridge control circuit and method adopts double-loop control, which needs to calculate the voltage loop and current loop in one switching cycle. In the calculation of digital signal processing (Digital Signal Process, referred to as DSP), the bandwidth resources are much occupied. . In the double-loop control, it is necessary to sample the output voltage and current, and the cost of the current sampling device is high. Moreover, in the prior art, two loop parameters need to be adjusted, and the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02M7/5387H02M1/088H02J9/06
CPCH02M7/5387H02M1/088H02J9/062
Inventor 陈真童如德周建明
Owner 广东省洛仑兹技术股份有限公司