Switched current regulator with improved power switch control mechanism
US5729443A · kind A · utility
46Cited by
9References
36Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 27, 1995 |
| Grant date | Mar 17, 1998 |
| Priority date | — |
| Expiry date | Sep 27, 2015 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M3/3381
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A flyback-type switched current regulator, comprising first and second coupled windings and a circuit for connecting the first winding to a voltage source as soon as the windings are demagnetized. The regulator further comprises a current sensor that senses the current flowing through the first winding; a switch that disconnects the first winding from the voltage source when the first current in the first winding reaches a reference value, whereby the first winding is switched according to a duty cycle; and a circuit that varies the reference value in accordance with the duty cycle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.