Active arc protection circuit
US4870529A · kind A · utility
13Cited by
7References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 19, 1988 |
| Grant date | Sep 26, 1989 |
| Priority date | — |
| Expiry date | Sep 19, 2008 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02H1/0015
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An arc protection circuit is disclosed for protecting a component, such as a transistor, from the effects of arcs developed in a CRT. The protection circuit includes an arc sensing circuit coupled to the component to be protected so as to sense the presence of an arc-induced transient voltage, in response to which the sensing circuit rapidly assumes a first state. An active current switch is coupled to the protected component and is responsive to the first state of the sensing circuit for rapidly assuming a low impedance state to shunt arc-induced current away from the component.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.