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:
Oct. 01, 2019
Filed:
Jan. 08, 2019
Applicant:
Ememory Technology Inc., Hsinchu, TW;
Inventor:
Yu Wu, Hsinchu County, TW;
Assignee:
eMemory Technology Inc., Hsinchu, TW;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G05F 3/26 (2006.01); G05F 1/575 (2006.01); H03F 1/34 (2006.01);
U.S. Cl.
CPC ...
G05F 3/262 (2013.01); G05F 1/575 (2013.01); H03F 1/34 (2013.01); H03F 1/342 (2013.01);
Abstract
A test device is provided. An output terminal of an operational amplifier is coupled to a device under test. A current replication circuit copies a current flowing through a charging circuit and a discharge circuit according to voltages of control terminals of the charging circuit and the discharge circuit in the operational amplifier and outputs a test result signal.