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. 20, 2013
Filed:
Feb. 18, 2011
Ling-yu Xie, Shenzhen, CN;
Xing-ping Xie, Shenzhen, CN;
Ling-Yu Xie, Shenzhen, CN;
Xing-Ping Xie, Shenzhen, CN;
Hong Fu Jin Precision Industry (ShenZhen) Co., Ltd., Shenzhen, CN;
Hon Hai Precision Industry Co., Ltd., New Taipei, TW;
Abstract
A circuit includes a power supply circuit and a measuring circuit. The measuring circuit includes a voltage meter, a current meter, and a connector connected to a zener diode under test. The voltage meter is connected to the connector in parallel. The current meter is configured to measure a current flowing through the zener diode. The power supply circuit is capable of providing an output voltage that becomes greater gradually. The voltage meter is capable of obtaining a breakdown voltage of the zener diode when the current flowing through the zener diode increases and a voltage across the zener diode is unchanged.