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:
Jul. 02, 2013
Filed:
Nov. 30, 2010
Tomoki Hikichi, Chiba, JP;
Minoru Ariyama, Chiba, JP;
Daisuke Muraoka, Chiba, JP;
Manabu Fujimura, Chiba, JP;
Tomoki Hikichi, Chiba, JP;
Minoru Ariyama, Chiba, JP;
Daisuke Muraoka, Chiba, JP;
Manabu Fujimura, Chiba, JP;
Seiko Instruments Inc., Chiba, JP;
Abstract
Provided is a constant current circuit capable of low current consumption operation, which is prevented from repeating a start-up state and a zero steady state and entering an oscillating state when power is activated. When power is activated, until a node (A) reaches a start-up state, an excitation current is continued to be supplied to a node (B), to thereby reliably start up the constant current circuit in a short period of time without repeating the start-up state and the zero steady state.