Multiple application voltage regulator system and method
US5298851A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | May 12, 1992 |
| Grant date | Mar 29, 1994 |
| Priority date | — |
| Expiry date | May 12, 2012 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05F1/468
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A single integrated circuit for multiple vehicle voltage regulator applications is inexpensive, programmable and responsive to mixed signals. The integrated circuit provides both analog and digital functions, and uses a single voltage comparator serving all comparator functions. A variety of features are included with the single integrated circuit in order to permit the programmable, mixed signal and multiple application characteristics of the device. Among the features are the provision for a single voltage comparator that serves all comparator functions, logic gates for preventing the simultaneous activation of fixed reference divider analog switches to eliminate current transients, the use of a single TC diode for thermal shut down and multiple temperature compensation curves with different voltage versus temperature rate of change parameters, a single band gap referenced shunt regulator circuit to serve as both a power source to the integrated circuit and as a precision reference voltage for the comparator, and a selectable load control function to gradually apply the field voltage at a programmable rate consisting of reversible and "up" binary counters with associated logic to…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.