Rapid supply voltage ramp using charged capacitor and switch

Details Rapid supply voltage ramp using charged capacitor and switch Rapid supply voltage ramp using charged capacitor and switch

2009-06-18

2010-11-16

Tso, Edward (Department: 2858)

Electricity: power supply or regulation systems

Output level responsive

Phase controlled switching using electronic tube or a three...

C323S238000, C323S901000, C363S049000, C320S166000

Reexamination Certificate

active

07834599

ABSTRACT:
In one embodiment, an apparatus is provided for a system including an integrated circuit coupled to a node to receive a supply voltage and having bypass capacitors coupled in parallel with the integrated circuit to the node. The apparatus comprises a first capacitor, a switch coupled to the first capacitor, and a voltage source configured to charge the first capacitor. The switch is coupled to receive a control signal that is asserted, during use, if the supply voltage to an integrated circuit is to be increased. The switch is configured to electrically couple the first capacitor to the node in response to an assertion of the control signal. When electrically coupled to the node, the first capacitor supplies charge to the bypass capacitors. A system comprising the apparatus, the node, the integrated circuit, and the bypass capacitors is also contemplated in some embodiments.

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