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. 22, 1977
Filed:
May. 30, 1975
Kouichi Yamada, Higashiosaka, JA;
Tatsuo Mizota, Kadoma, JA;
Kiyoshi Takeda, Katano, JA;
Kunio Aoki, Toyama, JA;
Matsushita Electric Industrial Co., Ltd., Kadoma, JA;
Abstract
A sawtooth wave forming circuit has an input signal alternately applied to the bases of first and a second transistors forming a differential amplifier, and a circuit which permits flow of a current equal to or proportional to the current flowing in the collector of the first transistor is connected between the differential amplifier and a power source. A capacitor is provided between ground and the junction between the circuit and differential amplifier. With this arrangement, the charge-discharge cycle of the capacitor is controlled by means of the input signal. By making use of the sawtooth wave forming circuit constituted in this way, stable trapezoidal or triangular waves having only small fluctuations in the slopes of the sides of the wave can be formed.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile