Solid state relay and circuit breaker
US5926354A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jan 15, 1998 |
| Grant date | Jul 20, 1999 |
| Priority date | — |
| Expiry date | Jan 15, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02H3/087
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A current interruption circuit for interrupting current flow from a source of DC power to a load includes: an electronically controllable primary switch device adapted to be series coupled between the DC power source and the load, the primary switch device having a voltage thereacross which is proportional to a current flowing therethrough when biased in an on state. The circuit also includes a voltage sensing circuit adapted to sense the voltage across the primary switch device and produce a control signal in response thereto; and a gate drive circuit adapted to receive the control signal and bias the primary switch in an off state when the control signal indicates that the voltage across the primary switch has exceeded a predetermined value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.