Two-wire, electronic switch
US5306955A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Apr 22, 1991 |
| Grant date | Apr 26, 1994 |
| Priority date | — |
| Expiry date | Apr 22, 2011 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K17/785
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
Two-wire, electronic switch which performs sensing functions, measurement functions, and output-control functions for an electrical load without receiving power from a power source, external or internal, other than the power source for the electrical load that is controlled by the switch. Electronic components of a two-wire, electronic switch which is fabricated in accordance with the present invention obtain power: (a) when the switch is off, from a power source which drives a load which is controlled by the switch and (b) when the switch is on, from an output of devices which convert current to voltage and which receive at least a portion of a current through the load as input.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.