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:
Sep. 17, 1991
Filed:
Jan. 25, 1990
Robert G Meyer, Berkeley, CA (US);
North American Philips Corporation, Signetics Div., Sunnyvale, CA (US);
Abstract
An integrated circuit (10, 22) contains an active bypass (36) that inhibits high-frequency supply-voltage variations caused by interaction of the circuitry elements (28) with the parasitic inductances (L.sub.HE, L.sub.HP, L.sub.LP, and L.sub.LE) associated with the power supply lines (16.sub.H /24.sub.H /26.sub.H /32.sub.H and 16.sub.L /24.sub.L /26.sub.L /32.sub.L) for the circuit. The bypass centers around a transistor (Q.sub.BP) coupled between the supply lines. An activation circuit (38) provides the transistor with a control signal (V.sub.C) to activate the transistor. A sensing capacitor (C.sub.S) provides a capacitive action between the transistor control electrode and one of the supply lines.