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:
Aug. 28, 2007
Filed:
Feb. 22, 2006
Satoshi Sobue, Nukata-gun, JP;
Satoshi Sobue, Nukata-gun, JP;
DENSO CORPORATION, Kariya, JP;
Abstract
A comparator includes a differential amplification circuit having differential input transistors and load transistors, an output transistor for outputting an output value of the comparator, a diode having a cathode connected to a ground, a current output circuit, a resistor connected between an anode of the diode and the bases of the load transistors. When the output transistor is in the OFF state, the diode clamps the voltage of the resistor to a forward voltage so that no current flows through the resistor. When the output transistor is in the ON state, the resistor has a slight voltage so that a slight current flows through the resistor. Thus, a threshold voltage of the comparator has a slight hysteresis without increase in resistance of the resistor.