Single-phase full-bridge bias magnet suppression and energy feedback device applied to full-controllable converter
A single-phase full-bridge, bias-suppressed technology, applied in the direction of adjusting electrical variables, control/regulating systems, converting DC power input to DC power output, etc. Reasonable structure, simple design, to achieve the effect of feedback
Inactive Publication Date: 2016-03-02
株洲中达特科电子科技有限公司
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However, this method has complex circuits, high production costs, and poor versatility.
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[0020] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the following will clearly and completely describe the technical components, technical solutions and embodiments of the present invention in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described The embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0021] The present invention will be further described in conjunction with the accompanying drawings and specific embodiments.
[0022] as attached figure 1 As shown, it is a schematic diagram of the composition of a single-phase full-bridge bias magnetic suppression and energy feedback device for a fully...
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The invention discloses a single-phase full-bridge bias magnet suppression and energy feedback device applied to a full-controllable converter. The device comprises an input port, a full-bridge rectification circuit, a filter circuit and an output port. The input port comprises an E end and an F end and a polarity can not be considered, and the E end and the F end are connected in parallel to two terminals of a primary side of a transformer winding in a transformer primary loop. The output port comprises a G end and an H end. The G end is connected with an input power supply positive polarity of a direct-current isolated full-controllable converter and the H end is connected with a negative polarity. The device of the invention has the advantages of a simple design, a reasonable structure, convenient construction and good versatility. A problem of insufficient bias magnet suppression in the application of the existing direct-current isolated full-controllable converter is overcome, forward-inverse bias magnet resistance of an isolation transformer iron core is effectively realized, and bias magnet energy feedback can be realized too.
Description
technical field [0001] The invention relates to a magnetic bias suppression and energy feedback device, more specifically, a single-phase full-bridge bias magnetic suppression and energy feedback device used in a full-control converter. Background technique [0002] In the application of fully-controlled converters, the DC isolation conversion circuit structure is widely used in the field of power supply. When the power supply energy on the input side and output side is converted, because the transformer is used to achieve signal isolation and energy transfer, more or less There will be little bias phenomenon. There is a magnetic bias, especially when the operating switching frequency or modulation frequency is in the hearing range, the mechanical noise of the transformer will increase. In addition, the consequences of ignoring the bias magnetic field are very serious. If it is mild, it will increase the power consumption of the transformer and the fully-controlled converte...
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Inventor 廖无限肖强晖刘明超杨劲松夏宇辉李立中
Owner 株洲中达特科电子科技有限公司