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2015•Unpublished venueRequires access

A Low Ripple Current Mode Voltage Doubler

Andrzej Grodzicki, Witold Adam Pleskacz

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Abstract

Experimental results of a fully integrated low ripple charge pump voltage converter are presented. The pump is a current mode voltage doubler with a novel parasitic capacitance precharge mechanism for output voltage ripple reduction. A prototype of the pump was designed and fabricated in 130 nm CMOS process. The pump supplied with 1.2 V delivers 1.5 V on its output. Despite reducing the size of the filtering capacitor (down to 5.2 % of the "flying" capacitor), the ripple level is 50 mV.

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What this paper is about

Experimental results of a fully integrated low ripple charge pump voltage converter are presented. The pump is a current mode voltage doubler with a novel parasitic capacitance precharge mechanism for output voltage ripple reduction. A prototype of the pump was designed and fabricated in 130 nm CMOS process. The pump supplied with 1.2 V delivers 1.5 V on its output. Despite reducing the size of the filtering capacitor (down to 5.2 % of the "flying" capacitor), the ripple level is 50 mV.

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Available abstract

Experimental results of a fully integrated low ripple charge pump voltage converter are presented. The pump is a current mode voltage doubler with a novel parasitic capacitance precharge mechanism for output voltage ripple reduction. A prototype of the pump was designed and fabricated in 130 nm CMOS process. The pump supplied with 1.2 V delivers 1.5 V on its output. Despite reducing the size of the filtering capacitor (down to 5.2 % of the "flying" capacitor), the ripple level is 50 mV.

Key concepts: Voltage doubler, Ripple, Capacitor, Charge pump, Electrical engineering, Voltage, Capacitance, Voltage multiplier

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