Circuit and method for regulating the current flow in a distributorless ignition system coil
US5043633A · kind A · utility
4Cited by
1References
24Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 13, 1989 |
| Grant date | Aug 27, 1991 |
| Priority date | — |
| Expiry date | Nov 13, 2009 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02P3/051
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A control circuit and method for regulating the current flow through a series connected inductor and transistor. The circuit comprises an operational amplifier for receiving a first voltage proportional to the current flow, for receiving a variable second voltage, and for providing a control current to the transistor which keeps the transistor out of its saturation region.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.