Circuitry and method for limiting peak current from a...

Details Circuitry and method for limiting peak current from a... Circuitry and method for limiting peak current from a...

2006-02-06

2008-11-11

Han, Jessica (Department: 2838)

Electricity: power supply or regulation systems

Output level responsive

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

C323S284000, C323S908000

Reexamination Certificate

active

07449870

ABSTRACT:
Circuitry (20) and a method are provided for limiting peak current while supplying a constant voltage to a load (42). The circuit (20) comprises an input terminal (32) for coupling to the voltage supply, current sense circuitry (26) coupled to the input terminal (32), a capacitor (30) coupled to an output terminal (40), a converter power stage (22) coupled between the current sense circuitry (26) and the output terminal (40); and a converter controller (24) having inputs coupled to the output terminal (40) and the current sense circuitry (26), and an output coupled to the converter power stage (22) for switching the converter power stage (22) from a voltage mode to a current mode.

REFERENCES:
patent: 4731574 (1988-03-01), Melbert
patent: 5264782 (1993-11-01), Newton
patent: 5408173 (1995-04-01), Knapp
patent: 7279878 (2007-10-01), Ootani et al.

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