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:
Dec. 09, 2008
Filed:
May. 15, 2007
Toshio Kaiho, Tokyo, JP;
Junichi Machida, Tokyo, JP;
Toshio Kaiho, Tokyo, JP;
Junichi Machida, Tokyo, JP;
Asahi Kasei EMD Corporation, Tokyo, JP;
Abstract
Output signal waveform having high input signal reproducibility is outputted from inductive load or the like. Output signals Vand Vobtained by feeding back an output signal Vp-nat output terminalsandacross load Lto input terminalsandare compared with an input signal Vin to detect an error between signals; a first error suppression signal Voutis produced such that the detected error between the signals is suppressed; inclination of first error suppression signal Voutis detected, and a second error suppression signal Voutis produced such that inclination error to input signal Vin is suppressed based on the detected inclination signal; and the ratio between the period that electric power is supplied to the load Land the period that electric power is not supplied to the load Lis modified according to the error of the error suppression signal.