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:
Jul. 04, 2023
Filed:
Sep. 19, 2021
Yung-lin Chen, Taoyuan, TW;
Szu-chieh Su, Taoyuan, TW;
Lien-sheng Hung, Taoyuan, TW;
Chun-tai Cheng, Taoyuan, TW;
Hsi-ping Tsai, Taoyuan, TW;
Szu-hsin Yeh, Taoyuan, TW;
Yung-Lin Chen, Taoyuan, TW;
Szu-Chieh Su, Taoyuan, TW;
Lien-Sheng Hung, Taoyuan, TW;
Chun-Tai Cheng, Taoyuan, TW;
Hsi-Ping Tsai, Taoyuan, TW;
Szu-Hsin Yeh, Taoyuan, TW;
Chroma ATE Inc., Taoyuan, TW;
Abstract
Herein disclosed is a voltage isolation circuit coupled to power supplies. The voltage isolation circuit comprises a series switch group controlled by a first control signal, a parallel switch group controlled by a second control signal, and a first high impedance element. The series switch group comprises a transistor arranged in a first current loop and having two channels connected to one of the power supplies respectively. The first high impedance element, coupled to the transistor in parallel, has a measurement terminal and two ends, connected to one of the power supplies respectively. When the series switch group is conducted, the power supplies are coupled in series in the first current loop. When the parallel switch group is conducted, the power supplies are coupled in parallel in a second current loop. Impedance values measured from the measurement terminal to each end of the first high impedance element are identical.