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. 08, 2023
Filed:
Jun. 09, 2020
Minebea Mitsumi Inc., Nagano, JP;
Hidetoshi Hijikata, Hamamatsu, JP;
Toshihiro Tamitsuji, Iwata, JP;
MINEBEA MITSUMI Inc., Nagano, JP;
Abstract
The present application makes it possible to measure a PWM signal in a wide frequency range. A PWM signal measurement device () includes: a first duty cycle measurement unit () of a capture type configured to measure a frequency (f) and a duty cycle of a PWM signal (Sc); a voltage measurement unit () configured to measure a smoothed voltage (Vad) obtained by smoothing the PWM signal using a smoothing circuit (); a second duty cycle measurement unit () of a smoothing type configured to measure a duty cycle of the PWM signal on the basis of a measured voltage value (Vadm) of the smoothed voltage; and a measurement-type selecting unit () configured to select one of the capture type or the smoothing type on the basis of a measured value of the frequency and a measured value of the smoothed voltage.