The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 10, 1991
Filed:
Mar. 05, 1991
Peter H Saul, Towcester, Northants, NN12 7JB, GB;
Andrew K Joy, Great Houghton, Northampton, NN4 0AP, GB;
Other;
Abstract
A power supply for an integrated circuit chip, including supply regulation circuitry coupled between on-chip circuitry and a power supply connection, the supply regulation circuitry including a transistor having a diode coupled to the control electrode of the transistor, the diode having a relatively large diode junction area, and a resistor coupled in series with the main current path of the transistor having a relatively small or no diode junction area, whereby when the chip is subject to irradiation the diode means increases the conductivity of the main current path so that an increased voltage appears across the resistor thereby to reduce the supply voltage to the on-chip circuitry.