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US 7,599,231 B2Granted
Adaptive regulator for idle state in a charge pump circuit of a memory device
AssigneeAtmel Corporation
InventorsMarco Passerini, Stefano Sivero, Andrea Sacco, Monica Marziani
Life of this patent
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Abstract
An apparatus and method for improving the performance of an electronic device is disclosed. An idle voltage state is introduced by an adaptive voltage generator when providing or removing a high voltage signal from a line or a node in a circuit. The idle state reduces the undesirable effects of switching disturbances caused by sudden voltage changes in a line or node.
Claims19
An apparatus comprising:
- at least one memory element coupled to a modify node, a first node, and a read node, the read node to receive a voltage having a predetermined voltage level and to selectively provide information stored in the at least one memory element, the first node having a first capacitance and a first capacitance voltage level;
- and
- an adaptive voltage generator coupled to the modify node to selectively modify information in the at least one memory element coupled to the modify node, wherein the adaptive voltage generator is configured to maintain the first node and the modify node at the predetermined voltage level when switching between a modify operation and a read operation in the at least one memory element.
An apparatus comprising:
- at least one memory element coupled to a modify node, a first node, and a read node, the read node to selectively provide information stored in the at least one memory element, the first node having a first capacitance and a first capacitance voltage level;
- an adaptive voltage generator coupled to the modify node to selectively modify information in the at least one memory element coupled to the modify node, wherein the adaptive voltage generator is configured to maintain the first node at a predetermined voltage level when switching between a modify operation and a read operation in the at least one memory element;
- a first switch coupled between the read node and the first node;
- a second switch coupled between the first node and the modify node;
- a third switch coupled between the first node and a second node;
- a fourth switch coupled between the second node and a ground node;
- and
- a second capacitance coupled between the second node and the ground node.
5 more elements
An apparatus comprising:
- a read node to receive a first voltage;
- a modify node;
- a switching stage coupled between the read node and the modify node, the switching stage including a first node;
- and
- an adaptive voltage generator configured to apply a second voltage having a first value corresponding to a value of the first voltage to the modify node before the switching stage couples the first node to the modify node.
2 more elements
Dependencies are inferred from the claim text.