Non-circulation and magnetic integration dual buck half bridge inverter and control method thereof

A half-bridge inverter and double step-down technology, which is applied in the direction of conversion of AC power input to DC power output, irreversible DC power input into AC power output, and output power conversion device, which can solve the problem of increasing the size , It is difficult to solve problems such as the number of coil turns, reducing the volume and weight of the inductor, and achieving the effects of ensuring reliability, improving utilization, and reducing volume and weight

Inactive Publication Date: 2017-01-11
FUZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

This new design allows for more efficient use of magnets without adding too much mass or size compared to previous designs. It achieves this through an improved way that uses only one circuit instead of multiple circuits. Additionally, there're no risk of any issues related to incorrect conduction between different parts within these systems due to insufficient space around them. Overall, this innovation helps improve efficiency and performance over existing technologies

Problems solved by technology

This patented technical problem addressed by this patents relates to improving the performance (power density) or reducing size/weight of an induction machine without compromising its ability to operate properly with multiple input filters connected together.

Method used

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  • Non-circulation and magnetic integration dual buck half bridge inverter and control method thereof
  • Non-circulation and magnetic integration dual buck half bridge inverter and control method thereof
  • Non-circulation and magnetic integration dual buck half bridge inverter and control method thereof

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Embodiment Construction

[0025] The technical solution of the present invention will be specifically described below in conjunction with the accompanying drawings.

[0026] Traditional double-buck half-bridge inverters such as figure 1 As shown, the dual-buck half-bridge inverter needs two independent filter inductors in the whole working cycle, so the advantages of the traditional dual-buck half-bridge inverter can be guaranteed while reducing the magnetic device as much as possible. Volume and weight are one direction of research on double-buck half-bridge inverters.

[0027] The reasons for the circulating current are mainly divided into the following two points: (1) The corresponding independent freewheeling diode is misconducted when the switch is turned on; (2) When the independent freewheeling diode corresponding to the switch is working normally, the body diode of the switch Misleading.

[0028] Figure 5 It is the non-circulating current magnetic integrated dual-step-down half-bridge inverte

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Abstract

The invention relates to a non-circulation and magnetic integration dual buck half bridge inverter and a control method thereof,the windings of two filter inductance are coupled with the same magnetic core to reduce the volume and loss of a magnetic piece effectively. Each switch pipe is serially connected with a diode to prevent false connection of the switch pipe diode when the inductive current is zero, and then the non-circulation working mode is realized. The non-circulation and magnetic integration dual buck half bridge inverter and the control method thereof improve and innovate the traditional dual buck half bridge inverter. When keeping the advantages of traditional dual buck half bridge inverter, the volume and weight of the output filter inductance are reduced, and then the volume and weight of the whole inverter are reduced. The non-circulation working mode is realized to ensure the system reliability.

Description

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Claims

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Application Information

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Owner FUZHOU UNIV
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