Power supply apparatus
US5132891A · kind A · utility
11Cited by
6References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 27, 1991 |
| Grant date | Jul 21, 1992 |
| Priority date | — |
| Expiry date | Jun 27, 2011 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M3/33507
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A power supply includes a switch mode power regulator coupled to a control circuit arrangement which synchronizes signals from a controlled oscillator with horizontal synchronous pulse trains to provide switching pulses for controlling the power regulator. Preferably, the horizontal synchronous pulse trains are at frequencies suited to drive a multimode character display.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.