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:
May. 16, 1989
Filed:
Jan. 06, 1988
Applicant:
Inventors:
Yoshihiro Ashizaki, Hirakata, JP;
Kazuyuki Takada, Hirakata, JP;
Assignee:
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03K / ;
U.S. Cl.
CPC ...
332 / ; 318599 ;
Abstract
According to the present invention, an output transistor on the power supply side Vcc is composed of an NPN type transistor whose base is driven by a PNP type transistor with a diode in its collector-to-emitter path to prohibit its saturation. Another output transistor on the power supply side GND is similarly composed of an NPN type transistor. The above two drive circuits are combined to set up an output circuit for pulse width modulation.
Ashizaki, Yoshihiro. (1989). Ic output circuit for use in pulse width modulator (U.S. Patent No. 4831344). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4831344
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile