Current sense circuit and method for a DC-to-DC converter
US7327129B2 · kind B2 · utility
20Cited by
7References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 6, 2005 |
| Grant date | Feb 5, 2008 |
| Priority date | — |
| Expiry date | Nov 6, 2025 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S323/907
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
In a DC-to-DC converter, a current sense circuit and method generate a first current by a first transconductive amplifier responsive to the output current of the converter for a controller to switch a high side switch and a low side switch, a second current from a first voltage by a second transconductive amplifier, a second voltage from the second current by an adjustable resistor, and a bias signal from a difference between the second voltage and a third voltage by a bias apparatus to adjust the transconductances of the first and second transconductive amplifiers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.