在受次级控制的反激式转换器中使用次级控制器进行的初级控制器校准和微调

By storing information in the secondary-side controller and transmitting it across the current isolation barrier to the primary side, the problems of high cost and poor flexibility of the primary-side controller in USB-PD power transmission are solved, achieving more efficient system optimization and resource saving.

CN114026774BActive Publication Date: 2026-07-17INFINEON TECHNOLOGIES AMERICAS CORP
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
INFINEON TECHNOLOGIES AMERICAS CORP
Filing Date
2020-05-21
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

In existing technologies, primary-side controllers lack intelligence in USB-PD power transmission, resulting in high costs, large chip areas, high power losses, and an inability to optimize and flexibly adjust.

Method used

By storing calibration and fine-tuning information in the secondary-side controller and transmitting it to the primary-side controller via a current isolation barrier, calibration and fine-tuning of the primary-side controller can be achieved, reducing reliance on additional logic and complex protocols on the primary side.

Benefits of technology

It reduces system costs, saves pins and bill of materials, improves the accuracy and flexibility of the primary-side controller, and reduces bill of materials and board space.

✦ Generated by Eureka AI based on patent content.

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Abstract

描述了将存储在次级控制器处的信息传送至受次级控制的反激式转换器中的初级控制器。在一个实施方式中，一种方法包括由电力转换器的次级侧控制器存储与该电力转换器的初级侧控制器相关联的校准信息。电力转换器是受次级控制的交流到直流(AC至DC)反激式转换器，该反激式转换器包括电流隔离势垒。该方法还包括响应于电力转换器的上电，由次级侧控制器跨电流隔离势垒向初级侧控制器发送校准信息。
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