T-type conversion circuit and corresponding three-phase conversion circuit and conversion device

A technology for converting circuits and circuit modules, which is applied to output power conversion devices, AC power input conversion to DC power output, electrical components, etc., can solve problems such as power device noise pollution, large device stress, and complex design, and achieve output The filter parameter requirements are lowered, the power density of the product is improved, and the structure is simple and compact.
CN108964490AActive Publication Date: 2018-12-07KEHUA DATA CO LTD
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Applications(China)
Current Assignee / Owner
KEHUA DATA CO LTD
Publication Date
2018-12-07

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Abstract

The invention discloses a T-type conversion circuit and a corresponding three-phase conversion circuit and a conversion device. In the T-type conversion circuit, by adding an inductor, four diodes andtwo capacitors in a T-type conversion circuit in the prior art, a controllable switching device and a diode device of the T-type conversion circuit can realize soft switching, and the power consumption of power devices and diode devices is reduced. The conversion device adopting the above-mentioned T-type conversion circuit combines components in the prior art with the newly-added components in the technical scheme into a circuit module, so that in a case that the internal circuit layout of the inverter / rectifier is not changed, the reconstruction cost is greatly reduced, the topological structure is compact, and the busbar design is simple, which is extremely advantageous for electrical layout and structural design.
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Description

technical field

[0001] The invention relates to the field of electric energy conversion, in particular to a T-shaped conversion circuit. Background technique

[0002] In the prior art, conversion circuits with a T-shaped layout have been widely used. The conversion circuit of T-shaped layout generally includes two vertically arranged controllable switching devices and two horizontally arranged controllable switching devices; the two vertically arranged controllable switching devices are connected in series, one end is connected to the positive bus, and the other end is connected to Negative bus bar; the connection point between two vertically arranged controllable switching devices is used as the input and output terminals of the conversion circuit; two horizontally arranged controllable switching devices are generally arranged on the middle bridge arm, and one end of the middle bridge arm is connected to Input and output terminals, the other end of the middle bridge arm is...

Claims

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