Adaptive power control for hysteretic regulators

Details Adaptive power control for hysteretic regulators Adaptive power control for hysteretic regulators

2005-04-18

2008-10-07

Han, Jessica (Department: 2838)

Electricity: power supply or regulation systems

Output level responsive

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

C323S288000, C323S277000

Reexamination Certificate

active

07432695

ABSTRACT:
A hysteretic regulator may be set to an active mode when voltage at an output falls to a first threshold level. In the active mode, charge is applied to an output node by a current having a set limit value. The regulator is set to an inactive mode when the voltage at the output node rises to a second threshold level. The current limit value is automatically adjusted as a function of average regulator current. An indication of average regulator current may be obtained by charging a sense capacitor during the active mode and discharging the sense capacitor during the inactive mode. The voltage of the sense capacitor, which is representative of the average regulator current, is used to generate an offset adjustment applied to a regulator controller.

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International Preliminary Report on Patentability and Written Opinion of The International Searching Authority issued in International Application No. PCT/US2005/016050, dated Nov. 1, 2007.

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