用于升压转换器的具有可调环路增益的反馈电路

By introducing a feedback circuit design with a gain signal and an adjustable current source into the boost converter circuit, the contradiction between stability and efficiency in the prior art is resolved, the load current range is expanded and components are optimized, and power loss is reduced.

CN114726209BActive Publication Date: 2026-07-17GOODIX TECH HK CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
GOODIX TECH HK CO LTD
Filing Date
2022-05-10
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing boost converter circuits typically require sacrificing efficiency or cost to meet stability standards, and the feedback circuit design relies on the parasitic characteristics of external components, resulting in high ripple voltage and power loss.

Method used

A feedback circuit design is employed, including a measuring resistor, a gain circuit, and a comparator circuit. By introducing a gain signal and an adjustable current source, the load current range is optimized, independent of external component characteristics, power loss is reduced, and gain is provided in the comparator circuit to meet stability criteria.

Benefits of technology

It achieves an expanded load current range without sacrificing efficiency and cost, optimizes the balance between cost, efficiency and performance, and reduces the number of components and power loss in the feedback circuit.

✦ Generated by Eureka AI based on patent content.

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Abstract

一种用于升压转换器的反馈电路,其中所述反馈电路包括测量电阻RM、反馈电阻RSH、增益电路gM以及比较电路,所述测量电阻RM被配置为接收来自所述升压转换器的电流ICOIL,所述增益电路gM包括增益输出并且被配置为接收与所述测量电阻相关联的感测电压,并在所述增益输出处提供基于所述感测电压生成的增益信号;所述比较电路包括比较输出,并被配置为在所述比较输出处生成比较信号,其中比较信号是基于所述增益信号、所述反馈电阻RSH两端的电压降和参考信号VREF生成的。
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