Method and apparatus for charge recycling
AssigneeDialog Semiconductor (UK) Limited
InventorsZhenyu Song, Junyue Sun, Nailong Wang, Ze Han, Xiaogang Zhao
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Abstract
A method and an apparatus for charge recycling. The method is comprised of the steps of receiving a charge at an energy storage element from a parasitic component, storing the charge at the energy storage element, and providing the charge stored at the energy storage element to a power supply's input or output. The step of receiving the charge at the energy storage element includes operating a discharging switch to selectively couple the parasitic component with the energy storage element and receiving the charge at the energy storage element via the discharging switch when the energy storage element and the parasitic component are coupled.
Claims18
A method of charge recycling comprising:
- coupling a first voltage to an electrical component via a bit line, such that a current flows through the electrical component;
- decoupling the first voltage from the electrical component, such that a residual electrical charge is stored on a parasitic component of the bit line;
- receiving the residual electrical charge at an energy storage element from the parasitic component;
- storing the residual electrical charge at the energy storage element;
- and
- providing the residual electrical charge stored at the energy storage element to an internal power supply, thereby recycling the residual electrical charge.
An apparatus comprising:
- a charge recycling circuit comprising an energy storage element;
- wherein:
- an electrical component is configured to be:
- coupled to a first voltage via a bit line, such that a current flows through the electrical component;
- and
- decoupled from the first voltage, such that a residual electrical charge is stored on a parasitic component of the bit line;
- and
- the energy storage element is configured to;
- receive the residual electrical charge from the parasitic component;
- store the residual electrical charge;
- and
- to provide the residual electrical charge to an internal power supply, thereby recycling the residual electrical charge.
Dependencies are inferred from the claim text.