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:
Oct. 03, 1995
Filed:
Sep. 14, 1994
Kozo Suzuki, Tsurugashima, JP;
Takashi Nagaiwa, Tsurugashima, JP;
Toko, Inc., Tokyo, JP;
Abstract
A constant-current circuit is disclosed which is arranged such that the magnitude and temperature characteristic of a current flowing through a load can be set independently. Output side of a temperature characteristic setting circuit (15A) connected to a band-gap reference circuit (14), and output side of voltage-follower circuit (16) are connected to a control resistor (R12). The temperature characteristic of the current I0 flowing through the load (13) is set by the band-gap reference circuit (14) and temperature characteristic setting circuit (15A), and the magnitude of the current I0 is set by the control resistor (R12). The arrangement is made such that the magnitude and temperature characteristic of the current I0 can be set independently; thus, the circuit design can be simplified and the the magnitude and temperature characteristic of the current can be set with a high accuracy.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile