Patent ID: 7233508

Claim:
A circuit comprising: a single integrated circuit chip, said integrated circuit chip comprising: a charge pump circuit, said charge pump circuit comprising: a plurality of conductor pairs, each conductor pair for coupling to a respective one of plurality of first capacitors each to be charged with an input voltage, each conductor pair having a first low potential side conductor and a second high potential side conductor; a plurality of first switching elements each for connecting the low potential side conductor of a corresponding one of said plurality of pairs of conductors to a positive power supply input terminal; a plurality of second switching elements each for connecting the high potential side conductor of the corresponding one of said plurality of pairs of conductors to an output terminal; at least one third switching element connected to a corresponding one of said plurality of conductor pairs in series; a fourth switching element for connecting one end of a series circuit of each corresponding one of said plurality of conductor pairs and said at least one third switching element to said positive power supply input terminal; a fifth switching element for connecting the other end of the series circuit of each corresponding one of said plurality of conductor pairs and said at least one third switching element to a negative power supply input terminal; and a control circuit for controlling each of said first switching elements, each of said second switching elements, each of said at least one third switching element, said fourth switching element and said fifth switching element in response to a clock signal; and a current regulator circuit connecting a load.