Load compensated switching regulator
US7679218B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 18, 2008 |
| Grant date | Mar 16, 2010 |
| Priority date | — |
| Expiry date | Mar 18, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M1/0022
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A load compensation circuit for a switching regulator including a comparator circuit and an adjustable voltage source. The switching regulator includes a switch circuit for converting an input voltage to a regulated output voltage and for driving a load current, and a controlled switch driver circuit having a supply voltage input and an output driving the switch circuit. The comparator circuit senses the load current and adjusts a voltage control signal to adjust switching efficiency based on the load current. The voltage source has an input receiving the voltage control signal and an output for providing a switch supply voltage to the supply voltage input of the switch driver circuit, where the voltage source adjusts the switch supply voltage based on the voltage control signal. A method of compensating a switching regulator based on load including sensing load current and adjusting the switch supply voltage to adjust switching efficiency.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.