JSSC 2024第5期RF & Wireless180nm CMOS

A Through-Power-Link Hysteretic-Controlled Capacitive Isolated DCDC Converter Wi

本文提出了一种电容隔离DC-DC转换器，通过创新设计实现了高效率、快速瞬态响应和高共模瞬态抗扰度。

68%峰值效率，±8kV共模瞬态抗扰度，414/828mW功率容量

电容隔离DC-DC转换器高效率共模瞬态抗扰迟滞控制

▸采用电容隔离链路提高效率

▸通过功率链路反馈实现电压调节

▸电压模式迟滞控制实现快速瞬态响应

▸两层“模拟键控”和“错误恢复”共模瞬态抗扰策略

▸可配置性扩展功率容量

Abstract

This article presents a capacitive isolated dc–dc converter with both the receiver (RX) and transmitter (TX) chips designed and verified in a standard 180-nm CMOS process with measurement results. This work achieves the following features. First, much higher efficiency, by using capacitive power links instead of low-quality micro-transformers and switching at a relatively lower frequency near resonance. Measurement shows a 68% peak efficiency, which is 15% higher than state-of-the-art miniature