Ignition isolating interrupt circuit
US6729240B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 26, 2002 |
| Grant date | May 4, 2004 |
| Priority date | — |
| Expiry date | Nov 26, 2022 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF42C15/40
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
An ignition isolating interrupt control circuit (52) includes a main transition circuit (90) isolating a first activation circuit (84) from an ignition circuit (114). The main transition circuit (90) includes a source terminal (93) that is electrically coupled to and receives a first source power from the first activation circuit (84). An input terminal (106) is electrically coupled to a second activation circuit (88) and receives an activation signal. An output terminal (138) is electrically coupled to the ignition circuit (114) and receives and supplies the first source power to the ignition circuit (114) in response to the activation signal. A power source monitor cutoff circuit (112) including a comparator is electrically coupled to the first activation circuit (84) and to the ignition circuit (114) and disables the ignition circuit (114) when a source voltage level is less than a predetermined voltage level.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.