Voltage dropping circuit and integrated circuit

Details Voltage dropping circuit and integrated circuit Voltage dropping circuit and integrated circuit

1997-11-25

1999-05-25

Wong, Peter S.

Electricity: power supply or regulation systems

Output level responsive

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

323283, 323284, G05F 240

Patent

active

059072377

ABSTRACT:
A voltage dropping circuit is formed within an integrated circuit having at least one internal circuit, for dropping an external power supply voltage to generate a dropped voltage, and supplying the dropped voltage to the at least one internal circuit. A voltage divider divides the dropped voltage. A comparator compares the divided voltage with a reference voltage, and generates a control voltage according to a result of the comparison. A voltage generator generates the dropped voltage in response to the control voltage. A setting block sets a ratio of the divided voltage to the dropped voltage.

REFERENCES:
patent: 5089768 (1992-02-01), Sato
patent: 5497119 (1996-03-01), Tedrow et al.
patent: 5519599 (1996-05-01), Shinada et al.
patent: 5552697 (1996-09-01), Chan
patent: 5563501 (1996-10-01), Chan
patent: 5671149 (1997-09-01), Brown
patent: 5774734 (1998-06-01), Kikinis et al.

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