Floating battery feed circuit
US4499532A · kind A · utility
13Cited by
6References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 23, 1983 |
| Grant date | Feb 12, 1985 |
| Priority date | — |
| Expiry date | Mar 23, 2003 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04M19/008
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A floating battery feed circuit comprising a switching-mode, flyback power converter wherein a capacitor connected to a converter transformer winding develops a relatively low voltage used to energize the converter control circuitry. The converter control circuitry prevents the operation of the battery feed circuit unless the voltage developed by the capacitor is above a predetermined magnitude. The power converter advantageously operates in only a constant-power mode regardless of loop impedance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.