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:
Aug. 13, 1996
Filed:
Jan. 22, 1993
Scott D McCall, Gilbert, AZ (US);
Gary W Hoshizaki, Mesa, AZ (US);
Motorola, Inc., Schaumburg, IL (US);
Abstract
A power efficient transistor (11) which operates in or near saturation having a base (16), a collector (17), and an emitter (18). A first transistor (12) having a base, collector, and emitter coupled to the base (16), collector (17), and emitter (18) of the transistor (11). The first transistor (12) is biased to operate in or near saturation under quiescent conditions. A plurality of transistors (13) are incrementally enabled or disabled to maintain the transistor (11) in or near saturation under all operating conditions. Each of the transistors (13) have a base, collector, and emitter coupled to the base (16), collector (17), and emitter (18) of the transistor (11). A plurality of drive transistors (14), enable or disable a corresponding one of each transistor of the transistors (13). Each drive transistor of the drive transistors (14) is enabled at a different voltage thereby incrementally enabling and disabling each transistor of transistors (13) maintaining transistor 11 in or near saturation.