Output feedback and under-voltage detection system that senses an input current representing a voltage input
US6438003B1 · kind B1 · utility
28Cited by
11References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 28, 2000 |
| Grant date | Aug 20, 2002 |
| Priority date | — |
| Expiry date | Aug 28, 2020 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M3/33507
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A switched mode controller for properly handling an under-voltage condition in a power line which includes a current mirror for receiving current from the power line; a reference current source coupled to the current mirror for supplying a reference current; and a power transistor coupled to the reference current source, the power transistor generating a pulse width modulated signal when current from the power line exceeds the reference current, the power transistor being disabled when current from the power line is less than the reference current.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.