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:
Feb. 10, 1987
Filed:
Jun. 11, 1985
Wolfdietrich G Kasperkovitz, Eindhoven, NL;
Johannes C Meeuwis, Eindhoven, NL;
U.S. Philips Corporation, New York, NY (US);
Abstract
A level shifting circuit in which the collectors of a first transistor and a second transistor (T.sub.1, T.sub.2), which are coupled together as a differential pair, are each connected to a load resistor (R.sub.o) and to the base of a third transistor and a fourth transistor (T.sub.3, T.sub.4), respectively, which are connected as emitter followers. In order to obtain a low dissipation for a specific gain and bandwidth, the collector of the third transistor (T.sub.3) is coupled to a tapping (7) on the load resistor (R.sub.o) of the second transistor (T.sub.2) and the collector of the fourth transistor (T.sub.4) is coupled to a tapping (6) on the load resistor (R.sub.o) of the first transistor (T.sub.1).