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:
Jun. 28, 1988
Filed:
Dec. 03, 1986
Katsumi Nagano, Shimonoseki, JP;
Tokyo Shibaura Denki Kabushiki Kaisha, Shimonoseki, JP;
Abstract
A transistor circuit has a first series circuit of first and second resistors coupled between a power source line and a circuit ground line. A second series circuit of third and fourth resistors is connected in parallel to the first series circuit. A first transistor is coupled at its collector-emitter path between the junction of third and fourth resistors and the circuit ground line. The first transistor is on-off controlled by a potential appearing at the junction of the first and second resistors. A second transistor is coupled at its collector-emitter path between an output terminal of the transistor circuit and the circuit ground line. The second transistor is on-off controlled by a potential appearing at the junction of the third and fourth resistors. The ratio of the resistance value of the first resistor to that of the second resistor is larger than the ratio of the resistance value of the third resistor to that of the fourth resistor.