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. 17, 1999
Filed:
Mar. 07, 1997
Sang-Yeon Pyo, Yongin, KR;
Samsung Electronics Co., Ltd., Suwon, KR;
Abstract
A switch reluctance motor drive circuit includes first drive circuits (50) for driving a plurality of high switching elements (23, 24, 25), in response to an input signal (H.sub.in) for driving a gate of the high switching element, and second drive circuits (52) for driving a low switching elements (26, 27, 28), in response to an input signal (L.sub.in) for driving the gates of the low switching element. A single DC voltage source is commonly applied to the first drive circuits, and the first drive circuits each have a transistor (T1) connected between a gate (G) of the switching element (e.g., 23) and the DC voltage source to turn on the switching element (23) corresponding thereto, and a second transistor (T2) connected between the gate (G) and source (S) of the switching element (23) to turn off the switching element (23). A single DC voltage source is commonly applied to second drive circuits, and the second drive circuits each have a third transistor (T3) connected between the gate (G) of the switching element (26) and the DC voltage source to turn on the switching element (e.g., 26) corresponding thereto, and a fourth transistor (T4) connected between the gate (G) and source (S) of the switching element (26) to turn off the switching element (26).