论文信息 - New Current Sensing Circuit for Hysteresis-Current-Controlled Buck Converters

New Current Sensing Circuit for Hysteresis-Current-Controlled Buck Converters

A dual-purpose current sensing circuit, which can fully measure the inductor current suitable for hysteresis-current-controlled buck/buck-boost converter is proposed. The current sensing circuit, control circuit and power MOSFETs are integrated into a single chip. Using the same proposed chip, the buck and buck-boost converter can be synthesized. The dual-purpose is implemented with TSMC0.35 m CMOS DPQM processes. The chip area is only 2.25 mm2. The power efficiency of proposed converter can be up to 90%

Juing-Huei Su | Jiann-Jong Chen | Yuh-Shyan Hwang | Wei-Chung Shih

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