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:
Sep. 15, 2020
Filed:
Mar. 09, 2020
Applicant:
Daihen Corporation, Osaka-shi, Osaka, JP;
Inventors:
Assignee:
DAIHEN Corporation, Osaka-shi, Osaka, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03K 17/04 (2006.01); H03K 17/0412 (2006.01); H03K 17/74 (2006.01); H01L 29/868 (2006.01);
U.S. Cl.
CPC ...
H03K 17/04123 (2013.01); H01L 29/868 (2013.01); H03K 17/74 (2013.01);
Abstract
In a PIN diode drive circuit, a forward voltage is applied to a PIN diode through a first switching element and a reverse voltage is applied to the PIN diode through a second switching element. A limiting unit limits an increase rate of an absolute value of a reverse recovery current to a value smaller than a threshold value, the reverse recovery current flowing through the PIN diode when a voltage applied to the PIN diode changes from a forward voltage to a reverse voltage. The threshold value is less than 1 time and 0.5 times or more of a maximum value of the increase rate when a second peak appears regarding the reverse recovery current.