Charge pump regulation with integrated 0.35 µm CMOS control circuit
Signals, Systems, and Electronics（2012）
摘要
This paper introduces the design of charge pump DC-DC boost converter with integrated low-voltage control circuit. By exploiting the advantage presented by the integration of both charge pump and control circuit within same CMOS technology, the DC-DC boost converter offers a low-power operation with a proper regulation. The error amplifier, comparator, and oscillator in the control circuit are designed with the supply voltage of 3.3V and the operating frequency of 5.5 MHz. The compensator circuit exploits pole-zero compensation for a stable operation. The power converter is measured in simulation. The test in 0.35 μm CMOS process shows that the output transient time of the compensator is controlled within 10 μsec and the output-voltage is accurately controlled from 4 ~ 10 V with a small load current within 1 mA.
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关键词
cmos integrated circuits,dc-dc power convertors,amplifiers,charge pump circuits,comparators (circuits),low-power electronics,oscillators,poles and zeros,regulation,cmos control circuit,charge pump dc-dc boost converter,charge pump regulation,comparator,error amplifier,frequency 5.5 mhz,integrated low-voltage control circuit,low-power operation,oscillator,pole-zero compensation,power converter,size 0.35 mum,time 10 mus,voltage 3.3 v,cmos,charge pump,boost converter,control circuit,integration,capacitors,low power electronics
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