Load driving circuitry with load current sensing
US4485342A · kind A · utility
10Cited by
7References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 27, 1982 |
| Grant date | Nov 27, 1984 |
| Priority date | — |
| Expiry date | Jul 27, 2002 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S323/909
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A testable load driving circuit apparatus includes a solid-state load driver for controlling AC current loads coupled in series with a winding of a saturable core reactor used for sensing the presence or absence of load current through a load current monitor which is coupled to another winding in the reactor. The load driving circuitry may be tested during circuit operation by injecting a signal of insufficient duration to substantially affect the load circuit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.