Electronic device
US12174649B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 23, 2019 |
| Grant date | Dec 24, 2024 |
| Priority date | — |
| Expiry date | Sep 29, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01D21/00
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
In a conventional electronic device, it is difficult to passively diagnose disconnection of an external capacitor added to an output terminal of a regulator circuit. An electronic device in this embodiment includes a regulator circuit 2 that outputs a constant voltage while external power supplied from the outside is input thereto, an external capacitor 3 connected to an output terminal of the regulator circuit 2 as an external component, an oscillation detector 4 that detects an oscillating state of the output voltage of the regulator circuit 2, and a failure determination unit 5 that outputs a failure signal when the oscillation detector 4 detects the oscillating state of the regulator circuit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.