Multiple output switching power supply
US4665473A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 3, 1985 |
| Grant date | May 12, 1987 |
| Priority date | — |
| Expiry date | Sep 3, 2005 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M3/33561
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A compact multiple output switching power supply having a series connection of a D.C. input power supply, a switching device and a primary winding of a transformer which supplies currents to loads during an on period of the switching device, and supplies constant output voltages V.sub.i (i=1, 2, . . . , m) from m (m.gtoreq.2) secondary windings n.sub.i (i=1,2, . . . , m) of the transformer by turning on and off the switching device, includes means for storing a magnetic energy during the on period of the switching device and discharging the stored energy to the loads during on off period, connected in series with the primary winding of the transformer. The output voltage V.sub.j (j=2, 3, . . . , m) is represented by EQU V.sub.j =(n.sub.j /n.sub.1).multidot.(V.sub.1 +k.sub.1)-k.sub.j where k.sub.j is a voltage drop in the circuit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.