Charge pump circuit and method

Details Charge pump circuit and method Charge pump circuit and method

1994-01-28

1995-09-26

Wong, Peter S.

Electricity: power supply or regulation systems

Self-regulating

Using a three or more terminal semiconductive device as the...

327536, 323312, G05F 316

Patent

active

054536804

ABSTRACT:
A charge pump (10) having a current source (12) and a current sink (14) is provided. Current source (12) generates one of two output currents using current mirror (16) and switch (18). Switch (18) selects between the two outputs based on a signal from source control (20). Current sink (14) generates one of two currents using current mirrors (44) and (46), and switch (48). Switch (48) selects from two currents generated by current mirrors (44) and (46).

REFERENCES:
patent: 4706013 (1987-11-01), Kuo
patent: 4713560 (1987-12-01), Herndon
patent: 4825142 (1989-04-01), Wang
patent: 4847519 (1989-07-01), Wahl et al.
patent: 5153530 (1992-10-01), Takagi et al.
patent: 5239455 (1993-08-01), Fobbester et al.
patent: 5247241 (1993-09-01), Ueda

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