Low power non-isolated driver
US8072160B2 · kind B2 · utility
0Cited by
4References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 22, 2008 |
| Grant date | Dec 6, 2011 |
| Priority date | — |
| Expiry date | Dec 18, 2029 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B20/30
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The present invention mainly discloses low power non-isolated driver that can be used for LED lighting and other non-isolated power supply appliance, in which the input side is connected to an AC or DC input, a PWM control circuit is connected to the buck converter switch, a capacitor filters the output voltage ripple and an output voltage/current control circuit provides feedback signal to the PWM control circuit. The present invention has such features of less component number, low total cost, high reliability, and better line/load regulation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.