DC/DC converter with inductor current sensing capability

Details DC/DC converter with inductor current sensing capability DC/DC converter with inductor current sensing capability

2007-03-27

2007-03-27

Vu, Bao Q. (Department: 2838)

Electricity: power supply or regulation systems

In shunt with source or load

Using choke and switch across source

C323S282000, C323S284000

Reexamination Certificate

active

11524862

ABSTRACT:
A DC/DC converter for converting an input voltage to an output voltage comprises a switch, an inductor, two voltage dividers, a capacitor, and a controller. The switch coupled to the input voltage. The inductor having a parasitic direct current resistance is used for coupling the switch to an output node of the DC/DC converter so as to generate the output voltage at the output node. The first voltage divider is coupled to the output node for generating a divided voltage of the output voltage. The second voltage divider is coupled to the switch and ground. The capacitor coupled to the first voltage divider and the second divider to measure the current through the inductor by sensing a voltage across the capacitor. The controller coupled to the first switch for enabling and disenabling it so as to discontinuously providing power from the input voltage to the inductor.

REFERENCES:
patent: 5777866 (1998-07-01), Jacobs et al.
patent: 5982160 (1999-11-01), Walters et al.
patent: 6642696 (2003-11-01), Tateishi
patent: 6737845 (2004-05-01), Hwang
patent: 6940189 (2005-09-01), Gizara
patent: 7031174 (2006-04-01), Lipcsei

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