Delta-difference amplifier circuit for restraint control module
US11650238B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 30, 2019 |
| Grant date | May 16, 2023 |
| Priority date | — |
| Expiry date | Oct 28, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F2203/45601
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A system for diagnosing a squib loop in a restraint control module. The system may include a first amplifier, a capacitor, a second amplifier. The first amplifier may have a first input connected to a first side of the squib and a second input connected to a second side of the squib. The output of the first amplifier may generate an output voltage corresponding to the voltage drop across the squib. The capacitor may be connected in series with the output of the first amplifier and the output of the first amplifier may be connected to a first side of the capacitor. The second amplifier having a first input connected to a second side of the capacitor. A second input of the second amplifier may be connected to a reference voltage. The second amplifier may be configured with a feedback loop to generate a gain output.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.