Electronic device and protection method thereof
US11742748B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | May 31, 2022 |
| Grant date | Aug 29, 2023 |
| Priority date | — |
| Expiry date | May 31, 2042 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K17/223
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An electronic device including a voltage detection circuit, a control and protection circuit, at least one voltage converter, and a system-on-chip is provided. The voltage detection circuit detects a voltage source to output a voltage detection signal. The control and protection circuit, coupled to the voltage detection circuit, generates a system power enabling signal according to the voltage detection signal. The at least one voltage converter, coupled to the control and protection circuit, generates a system power signal according to the system power enabling signal. The system-on-chip, coupled to the at least one voltage converter, controls the electronic device when receiving the system power signal. In response to a power off signal generated from the system-on-chip, the control and protection circuit further isolates the voltage detection signal to avoid the transition of the voltage detection signal affecting a system shutdown procedure of the electronic device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.