Method and circuit for controlling and monitoring a load
US5510950A · kind A · utility
15Cited by
6References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 5, 1994 |
| Grant date | Apr 23, 1996 |
| Priority date | — |
| Expiry date | Oct 5, 2014 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K17/6877
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A method and circuit is provided which controls and monitors a load through a single I/O pin of a microprocessor. A predriver circuit including a level shifter responds to a driver control signal from the microprocessor to control energization of a power driver connected in a load circuit. The predriver circuit also includes a monitor stage for detecting fault conditions of the load circuit. The output of the monitor stage is connected with the I/O pin which is configured as either an input or an output pin under microprocessor program control.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.