Solid state circuit breaker
US5606482A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Apr 14, 1995 |
| Grant date | Feb 25, 1997 |
| Priority date | — |
| Expiry date | Apr 14, 2015 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K17/785
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A solid state circuit breaker which provides high voltage isolation between a control circuit and a power source is described. The circuit breaker comprises a receiver for providing a control signal in response to a transmitter that is electrically isolated from the receiver, a solid state switch that closes in response to the control signal thereby allowing a load current to flow through the switch, a current sensor for measuring the load current, and an inhibit circuit responsive to the current sensor for inhibiting the control signal when the load current exceeds a predetermined magnitude thereby opening the switch without adjusting the transmitter. After opening the switch, the inhibit circuit is responsive to the transmitter for allowing the control signal thereby closing the switch.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.