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Multi-converter output can be cascaded switching power supply

A switching power supply and converter technology, applied in the field of high-power switching power supply, can solve the problems of small output power, low output voltage, difficult to achieve rated current output, etc., and achieve the effect of increasing capacity and high overall efficiency

Inactive Publication Date: 2011-12-14
刘闯
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the loss of the switching devices and transformers used, when the output voltage is low and the output power is small, the overall efficiency of the switching power supply is very low, and at low voltage (usually below 1V), it is difficult to reach the rated current output

Method used

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  • Multi-converter output can be cascaded switching power supply
  • Multi-converter output can be cascaded switching power supply
  • Multi-converter output can be cascaded switching power supply

Examples

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Embodiment Construction

[0020] The embodiments of the present invention are described in detail below in conjunction with the accompanying drawings: the present embodiment is implemented on the premise of the technical solution of the present invention, and detailed implementation methods and processes are provided, but the protection scope of the present invention is not limited to the following implementation example. It is, therefore, to be understood that the appended claims are intended to cover all such modifications and changes as fall within the true spirit of the invention.

[0021] Such as figure 1 As shown, this embodiment includes: a converter 11, a converter 12, a converter 13, a high-frequency transformer T, and a rectifier 14, wherein: the high-frequency transformer T has three input windings and one output winding, and there is no center tap ; Converters 11, 12, 13 are connected in parallel, and the input is U in , the three converters have the same structure and are all full-bridge...

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PUM

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Abstract

The invention discloses a multi-transformer switch power supply with a cascaded output. The multi-transformer switch power supply comprises a plurality of groups of transformers, a rectifier, a high frequency transformer, a driving module, a power supply controller and a cascade controller, wherein the plurality of groups of transformers are used for converting direct current into alternating current; the rectifier is used for converting the alternating current into the direct current; the high frequency transformer is used for raising voltage or reducing voltage; the driving module is used for selecting and driving switch devices of the transformers; the power supply controller is used for outputting a control signal of a single power supply monomer; and the cascade controller is used for cascading a plurality of switch power supplies. The switch power supply can be applied to the electrochemical field.

Description

technical field [0001] The invention relates to a cascadable switching power supply with output of multiple converters, in particular to a cascadable high-power switching power supply whose voltage can be continuously adjusted within a wide range, has low voltage and large load capacity. Background technique [0002] At present, in order to meet various requirements of electrochemical power supplies commonly used in the market, the switching power supply used needs to have an adjustable output voltage within a wide range (usually 0.1-100V), and when the output voltage is 0.1V, the output current is still required. rated value can be achieved. Due to the loss of the switching devices and transformers used, when the output voltage is low and the output power is small, the overall efficiency of the switching power supply is very low, and at low voltage (usually below 1V), it is difficult to reach the rated current output. In order to adapt to a wider range of applications, hig...

Claims

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Application Information

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IPC IPC(8): H02M3/335H02M7/49
Inventor 刘闯
Owner 刘闯
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