Resonant ignition circuit
US10145352B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 10, 2017 |
| Grant date | Dec 4, 2018 |
| Priority date | — |
| Expiry date | Aug 10, 2037 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02P9/007
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
In a general aspect, an ignition circuit can include a control circuit configured to receive a command signal from an engine control unit, and a driving circuit coupled with the control circuit. The driving circuit can be configured to be coupled with a resonant circuit that includes a primary winding of an ignition coil. The control circuit and the driving circuit can be configured, in response to a command signal, to drive the resonant circuit at a first frequency to generate a voltage in the ignition coil to initiate a spark in a spark plug; and, in response to the spark being initiated in the spark plug, drive the resonant circuit at a second frequency to maintain the spark in the spark plug for combustion of a fuel mixture. The control circuit can be configured to, after the combustion of the fuel mixture, to disable the driving circuit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.