Charge pumping system and method

Details Charge pumping system and method Charge pumping system and method

2005-07-19

2005-07-19

Berhane, Adolf (Department: 2838)

Electric power conversion systems

Current conversion

With voltage multiplication means

C327S536000

Reexamination Certificate

active

06920055

ABSTRACT:
A charge pumping system capable of a forward operation mode and a reverse operation mode is provided. In forward operation mode the charge pumping system can step-up an input voltage at a ratio of ½:1 and can step-down the input voltage at a ratio of n:m where n and m are both integer values and n is equal to or greater than m. In reverse operation mode the charge pumping system can step-down the input voltage at a ratio of 1:½ and 1:1 and can step-up the input voltage at a ratio of p:q where p and q are both integer values and p is less than q.

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“Regulated 3.3V/5.0V Step-Up/Step-Down Charge Pump,” 2001,Maxim Integrated Products, 8 pages.
“50mA Regulated Step-Down Charge Pump For 1.8V or 1.9V Logic,” 2000,Maxim Integrated Products, 8 pages.

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