Circuit for supplying voltage to a microprocessor in an ignition circuit for an internal combustion engine
US5392747A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 6, 1993 |
| Grant date | Feb 28, 1995 |
| Priority date | — |
| Expiry date | Aug 6, 2013 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02P1/08
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
The invention is directed to a circuit for providing a controlled voltage supply to a microprocessor in an ignition circuit of an internal combustion engine equipped with a spark plug. The circuit includes: a generator having an induction coil and magnetic device for generating an alternating voltage in the coil; a microprocessor for controlling the spark plug; the microprocessor having first and second connecting terminals and a capacitor connected across the terminals; a thyristor having a gate electrode is connected between the induction coil and the capacitor; and, a voltage limiter is connected to the gate electrode, The controlled voltage supply for the thyristor is ensured over the entire rpm range of the engine without noticeable energy losses.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.