Self initialization forcharge pumps
AssigneeIntel Corporation
InventorsRaymond W. Zeng, Bo Li
Life of this patent
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Abstract
A method and apparatus for self initialization for charge pumps. The method of one embodiment comprises generating a pumped voltage at an output of the circuit. The pumped voltage is sent to a first switch. A determination is made as to whether the circuit is in a first power state. The first switch is activated to couple the pumped voltage to an initialization mechanism if the circuit is in said first power state. An internal pump node in the circuit is initialized to a first voltage potential. The first switch is deactivated to decouple the pumped voltage from the initialization mechanism after the internal pump node is charged to desired level.
Claims20
A method comprising:
- generating an output voltage internally within a circuit, said output voltage having a voltage potential different from that of a supply voltage;
- determining whether said circuit is in a first power state wherein generation of said output voltage will cease;
- coupling said output voltage to a self initialization mechanism for said circuit if said circuit is in said first power state;
- initializing an internal node within said circuit to a first voltage potential with said self initialization mechanism;
- and
- decoupling said output voltage from said self initialization mechanism after said internal pump node is charged to a desired level.
An apparatus comprising:
- an analog circuit to generate an output voltage from a supply voltage, said output voltage having a voltage potential different from that of said supply voltage;
- a self initialization mechanism coupled to said analog circuit, said self initialization mechanism to receive said output voltage and said supply voltage;
- and
- control logic coupled to said self initialization mechanism, said control logic to control initialization of an internal node within said analog circuit to a desired voltage level.
Dependencies are inferred from the claim text.