Control circuit for holding constant the operating voltage of an electric load
US4504777A · kind A · utility
6Cited by
6References
9Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 14, 1982 |
| Grant date | Mar 12, 1985 |
| Priority date | — |
| Expiry date | Dec 14, 2002 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M3/135
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A control circuit for supplying a relatively constant operating voltage to an electrical load over a relatively wide range of supply line voltages, including an electronic switch connected in series with the electrical load and having a control lead, a reference voltage generating element, and a comparator for receiving the reference voltage and a voltage representative of the actual voltage applied to the electrical load and for generating and electrical signal which is applied to the control lead of the electronic switch.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.