Direct current power supply
US4122514A · kind A · utility
18Cited by
9References
2Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 1, 1976 |
| Grant date | Oct 24, 1978 |
| Priority date | — |
| Expiry date | Nov 1, 1996 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M3/33561
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A direct current voltage power supply in which spaced pulses of current are made to flow through the primary winding of a power transformer. The anode-cathode path of an SCR device is connected from a point on a secondary winding to an output capacitor. A pulse width modulation circuit and a base drive circuit are connected between the output capacitor and the gate electrode of the SCR device so as to apply a pulse to the gate electrode that enables conduction between the source and drain electrodes whenever the voltage across the output capacitor drops below a given reference value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.