Research/Patents/US 5786975
US 5786975

ELECTRONIC SWITCHING CIRCUITS

Assignee

BRITISH AEROSPACE PUBLIC LIMITED COMPANY

Filed

Mar 19, 1993

Granted

Jul 28, 1998

Location

BRISTOL GB GB

Abstract

A switching circuit especially suitable for protecting electronic components such as integrated circuits (2) from the harmful effects of ionizing radiation. The circuit comprises two switches for isolating the component (2) from its power supply, the switches conveniently being NPN transistors (TR1, TR2) and being connected either side of a decoupling capacitor (3) associated with a component (2). Because the capacitor (3) is allowed to retain its charge during power-off, no time is lost in recharging it once the power supply has been resumed.

Source: Google Patents

35 USC §181 Secrecy Order

Imposed

May 26, 1993

Rescinded

Jun 26, 1996

Duration

3 years, 1 month

Inventor

  • 1PETER H. DUNCAN
Back to patent indexSource: USPTO 35 USC §181 secrecy order records