Manual-adjustment-free controlled-voltage and current-limited D.C. voltage supply
US5408173A · kind A · utility
45Cited by
19References
20Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 1, 1992 |
| Grant date | Apr 18, 1995 |
| Priority date | — |
| Expiry date | Oct 1, 2012 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05F1/575
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
Voltage-control and current-limiting negative feedback loops are disclosed that cooperate with an adjustable voltage regulator to provide a constant-amplitude and current-limited D.C. voltage. The regulator and voltage-controlling and current-limiting feedback loops are constituted by low-cost circuit elements that cooperate to provide high-precision voltage and current regulation in a manner that is free from manual adjustment. The circuit of the invention is particularly adapted to charging lead-acid batteries.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.