Electronic circuit for single-event latch-up detection and protection
US10566780B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 17, 2015 |
| Grant date | Feb 18, 2020 |
| Priority date | — |
| Expiry date | Oct 12, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02H5/005
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An electronic circuit for single-event latch-up (SEL) detection and protection of a target integrated circuit (IC) is disclosed. The circuit comprises: a first detector configured for detecting an absolute load current (i) and comparing the absolute load current (i) with a threshold current (ith); a second detector configured for detecting a rate of change of load current (di/dt) and comparing the rate of change of load current (di/dt) with a threshold current change rate (di/dt)th; and a determination module for triggering a power shut-down to the target IC if the absolute load current (i) exceeds the threshold current (ith) and/or the rate of change of load current (di/dt) exceeds the threshold current change rate (di/dt)th.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.