← 返回 JSSC 论文列表JSSC 2025第12期Power Management180nm BCD
A 1.52-W Capacitor-Drop Sigma-Floating-SC AC/DC Converter for Grid Power to IoT Devices
提出一种基于开关电容的非隔离AC-DC转换器，适用于物联网和智能家居设备。
峰值效率81.3%，最大输出功率1.52W，功率密度739mW/cm³
开关电容AC-DC转换器物联网智能家居sigma-SC整流器
▸使用sigma-SC整流器减少续流电流损耗
▸引入浮动SC DC-DC转换器提高输出功率
▸优化等效输出电容
Abstract
This work proposes a switched-capacitor (SC)-based
non-isolated ac–dc power converter, converting the ac mains
(110 V @ 60 Hz or 230 V @ 50 Hz) input to a single-cell battery
voltage (3.3–4.6 V), optimized for the Internet-of-Things (IoT)
and smart home devices. We use a sigma-SC rectifier to reduce
the freewheeling current loss and to share the output current
stress. Also, we introduce a floating-SC dc–dc converter to
increase the output power and the equivalent output capacitance.
Fabricated in