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:
Mar. 03, 1981
Filed:
Nov. 01, 1978
Kenneth I Ray, Mesa, AZ (US);
Motorola, Inc., Schaumburg, IL (US);
Abstract
A circuit for providing a control signal having a first predetermined magnitude in response to an analog voltage having a magnitude below a particular threshold and the control signal having a second predetermined magnitude in response to the magnitude of the analog voltage being above the particular threshold includes a threshold establishing circuit, a first transistor and a second transistor. The threshold establishing circuit receives the analog voltage and enables the first transistor to remain non-conductive until the analog voltage reaches the threshold. The second transistor is connected to the first transistor and to the analog voltage supply. The second transistor is arranged to be initially conductive as the magnitude of the analog voltage rises, and to become non-conductive in response to the first transistor being rendered conductive so that the desired control signal is developed at an output electrode of the second transistor.