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. 02, 1977
Filed:
Jun. 25, 1975
Nissan Motor Co., Ltd., Yokohama, JA;
Abstract
First and second transistors are connected in a monostable multivibrator configuration. A capacitor is coupled between the collector of the first transistor and the base of the second transistor. A first control voltage is applied to the collector of the first transistor to charge the capacitor when the second transistor is conductive. A constant current source is provided to charge the capacitor at a constant rate determined by a second control voltage. The stored energy is discharged through the first transistor when energized in a successive cycle. The capacitor is recharged by the constant current source through the first transistor to linearly raise the potential at the base of second transistor. The transistors are triggered by the distributer of an engine so that a control pulse is generated for each revolution of the engine's output shaft. The width of the output pulse from the collector of second transistor is proportional to the first input voltage and inversely proportional to the second input voltage. When the pulse generators are cascaded in a suitable manner, the width of the output pulse is proportional to the product of the two input voltages.