Title :
A Low Ripple Current Mode Voltage Doubler
Author :
Grodzicki, Andrzej ; Pleskacz, Witold
Author_Institution :
Inst. of Microelectron. & Optoelectron., Warsaw Univ. of Technol., Warsaw, Poland
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.
Keywords :
CMOS integrated circuits; capacitors; charge pump circuits; current-mode circuits; voltage multipliers; CMOS process; filtering capacitor; flying capacitor; fully integrated low ripple charge pump; low ripple current mode voltage doubler; parasitic capacitance precharge mechanism; size 130 nm; voltage 1.2 V; voltage 1.5 V; voltage 50 mV; voltage converter; voltage ripple reduction; Capacitors; Charge pumps; Parasitic capacitance; Prototypes; Resistors; Voltage measurement; charge pump; current mode charge pump; low ripple;
Conference_Titel :
Design and Diagnostics of Electronic Circuits & Systems (DDECS), 2015 IEEE 18th International Symposium on
Conference_Location :
Belgrade
Print_ISBN :
978-1-4799-6779-7
DOI :
10.1109/DDECS.2015.26
