Strobe flash lamp power supply with input voltage feedthrough afterflow prevention circuit
US4954753A · kind A · utility
8Cited by
10References
16Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 29, 1988 |
| Grant date | Sep 4, 1990 |
| Priority date | — |
| Expiry date | Aug 29, 2008 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S315/05
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The DC to DC converter includes a coupled inductor having a primary winding and a feedback winding. A drive current regulator circuit receives a variable input voltage from the feedback winding but transmits a constant base drive current to the base terminal of the converter switching transistor. The base drive regulator circuit thereby enables the DC to DC converter to operate at high levels of efficiency over wide ranges of DC input voltages such as twelve to forty-eight volts DC.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.