Voltage transient protection circuit
US4964011A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | May 22, 1989 |
| Grant date | Oct 16, 1990 |
| Priority date | — |
| Expiry date | May 22, 2009 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11C7/22
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A voltage transient protection circuit is provided for protecting a memory device such as a solid state memory cartridge from an undesired control signal which may occur during voltage transients in the primary supply voltage for such memory device. A transient detector detects transients occurring in the primary supply voltage. An isolation circuit is provided in the control bus, such isolation circuit being activated when a transient in the primary supply voltage is detected. A secondary voltage source supplies voltage to the transient detector and the isolation circuit sufficiently long while the primary voltage is fluctuating during a transient to permit the isolation circuit to isolate the control signal(s)el from said memory device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.