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:
Nov. 08, 2016
Filed:
Sep. 12, 2013
Daikin Industries, Ltd., Osaka-shi, Osaka, JP;
Kenichi Sakakibara, Kusatsu, JP;
DAIKIN INDUSTRIES, LTD., Osaka-Shi, JP;
Abstract
In a first period when a cosine value is positive that is a cosine value of a value twice a phase angle determined while an AC waveform output from a single-phase AC power source is regarded as a sine value of the phase angle, a discharge duty for making a first switch conducting is set to be higher than a first value determined by dividing the product of an amplitude of an AC voltage of the single-phase AC power source and the cosine value by the product of an across voltage of a capacitor and √2. In addition to or alternatively to this, in a second period when the cosine value is negative, a rectifying duty for making a diode rectifier conducting is set to be higher than a second value that is the reciprocal of the product of the absolute value of the sine value and √2.