Closed loop control with bias voltage toggle
US7954365B2 · kind B2 · utility
7Cited by
13References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 4, 2009 |
| Grant date | Jun 7, 2011 |
| Priority date | — |
| Expiry date | Sep 13, 2029 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02D41/1476
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
An oxygen sensor circuit comprises an oxygen sensor, a bias voltage module, and a switch module. The bias voltage module communicates with the oxygen sensor and generates a bias voltage. The switch module selectively connects the bias voltage module to the oxygen sensor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.