Apparatus and method for electronic circuit protection
US8320091B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 25, 2010 |
| Grant date | Nov 27, 2012 |
| Priority date | — |
| Expiry date | May 25, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02H9/046
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Apparatus and methods for electronic circuit protection are disclosed. In one embodiment, an actively-controlled protection circuit includes a detector, a timer, a current source and a latch. The detector is configured to generate a detection signal when the detector determines that a transient signal satisfies a first signaling condition. The timer is configured to receive the detection signal, and to generate a current control signal. The current control signal is provided to a current source, which produces a trigger current at least partly in response to the control signal. The trigger current is provided to a node of the latch, thereby enhancing the conductivity modulation of the latch and selectively controlling the activation voltage of the latch.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.