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:
Jun. 09, 2020
Filed:
May. 28, 2019
Yokogawa Electric Corporation, Musashino-shi, Tokyo, JP;
Youichi Iwano, Musashino, JP;
Yokogawa Electric Corporation, Tokyo, JP;
Abstract
A circuit for outputting a pulse signal includes: a pulse transformer configured to include a primary coil and a secondary coil; a switch section configured to switch a direction of application of current; a primary-side capacitor disposed on a path for primary-side current; a rectifying section configured to rectify secondary-side voltage and output the rectified voltage; a secondary-side capacitor configured to be charged with the rectified voltage and release charge; a transistor configured to be switched on and off according to voltage of the secondary-side capacitor; and a controller configured to control timings when the switch section switches the direction of application of the primary-side current. And the controller is configured to perform control to switch the direction of application of the primary-side current, when primary-side voltage oscillates and changes to an opposite polarity at a start timing of one switching period of the switch section.