Self-powered circuit interruption arrangement
US5668692A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 27, 1993 |
| Grant date | Sep 16, 1997 |
| Priority date | — |
| Expiry date | Oct 27, 2013 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02H1/063
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A circuit interrupter arrangement for interrupting current in a circuit path includes a hysteresis control circuit arranged to control a power supply charge-accumulation switch and an undervoltage trip-lockout circuit in parallel. More specifically, the arrangement includes a current inducer circuit for inducing a current signal having a magnitude corresponding to the current in the circuit path; an energy accumulator for accumulating a magnitude of energy to cause an interruption of the circuit path; an energy accumulator control circuit controlling the magnitude of energy accumulating; a trip lock-out circuit, responsive to an insufficient magnitude of accumulated energy, for preventing an interruption of the circuit path; and a range control circuit, responsive to the current inducer circuit, for operating a power-related signal between a first level and a second level to control the energy accumulator control circuit and the trip lock-out circuit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.