JSSC 2012第12期Power Management0.13μmBoost Converter

A 40 mV Transformer-Reuse Self-Startup Boost Converter With MPPT Control for The

40 mV自启动升压转换器，采用变压器复用和MPPT控制，适用于热电发电机应用。

40 mV-300 mV输入电压范围，2.7 mW最大输出功率，61%最大效率，2V输出电压

自启动升压转换器MPPT控制热电发电机变压器复用低电压

▸40 mV最低工作电压的自启动设计

▸变压器复用为电感以提高效率

▸改进的MPPT传感方法简化电路

Abstract

This paper present s transformer-based self-starting boost converter architecture with low-power maximum power point tracking (MPPT) control for low-voltage thermoelectric generator applications. T he minimum working voltage of the pro- posed boost converter is 40 mV with oscillation through a positive feedback loop formed by a native MOS and transformer. The oscillation autonomous ly starts up by thermal noise and is charged up to 1.2 V by the oscillation so that the control block can operate.