power converter

Abstract

The invention discloses a power converter for converting input power into output power. The power converter includes: a first transformer circuit having a first primary winding for receiving a first portion of said input power and a first secondary winding for generating a first portion of said output power; a second transformer a circuit having a second primary coil for receiving a second portion of said input power and a second secondary coil for generating a second portion of said output power; and a balancing circuit, with the first secondary The first end of the coil and the second end of the second secondary coil are connected to balance the first part of the output power and the second part of the output power by transmitting signals between the first end and the second end, Wherein, the first end and the second end have the same polarity. According to the power converter of the present invention, heat dissipation efficiency can be improved, thereby reducing power consumption and improving power conversion efficiency.

Description

technical field [0001] The present invention relates to power converters, especially power converters implemented based on transformers, and methods for converting input power into output power. Background technique [0002] figure 1 Shown is a schematic circuit diagram of a DC-DC converter 100 in the prior art. The DC-DC converter 100 includes a full bridge switching circuit 102 , a transformer T1 and a rectifying circuit 106 . The full bridge switching circuit 102 includes switches Q1, Q2, Q3 and Q4, and based on the control of the control signals CTR1, CTR2, CTR3 and CTR4 on the switches Q1, Q2, Q3 and Q4, the input power (for example: input voltage V IN ) to the transformer T1. Transformer T1 receives this input power to generate a primary current I that flows through its primary coil PRI . The primary current I PRI Generates a secondary current I that flows through the secondary coil of transformer T1 SEC . The secondary current I SEC further flows through the ...

AI Technical Summary

Problems solved by technology

If the input power is relatively high and generates a relatively large primary current I PRI , the magnetic energy stored in the magnetic core of transformer T1 may generate a large amount of heat, which cannot be dissipated in a short time, resulting in relatively low power conversion efficiency of transformer T1

The power consumption of the DC-DC converter 100 may be relatively high, thus degrading its power conversion performance

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