Overshoot protection circuit, method, and chip
US12362553B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 6, 2025 |
| Grant date | Jul 15, 2025 |
| Priority date | — |
| Expiry date | Apr 6, 2045 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02H3/02
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
An overshoot protection circuit, a method, and a chip. The overshoot protection circuit includes: a low drop regulator (LDO), a reference source circuit, a switching controller, and a rough reference voltage generation circuit. The switching controller is configured to control the LDO to be connected to the rough reference voltage generation circuit in a first stage of power supply signal change, connected to the reference source circuit in a second stage of power supply signal change. The rough reference voltage generation circuit is configured to generate a first preset reference voltage, and the reference source circuit is configured to generate a second preset reference voltage; in the first stage, the switching controller is configured to electrically connect the LDO to the first preset reference voltage; in the second stage, the switching controller is configured to electrically connect the LDO to the second preset reference voltage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.