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:
Dec. 11, 2018
Filed:
Feb. 14, 2017
Globalfoundries Singapore Pte. Ltd., Singapore, SG;
Fei Xu, Singapore, SG;
Bai Yen Nguyen, Singapore, SG;
Jinling Wang, Singapore, SG;
Benjamin Shui Chor Lau, Singapore, SG;
GLOBALFOUNDRIES SINGAPORE PTE. LTD., Singapore, SG;
Abstract
A compact and reliable changeable negative voltage transmission circuit is described. It is very useful for applications need passing changeable negative voltage to selected pins in certain mode. The changeable negative voltage is 0V when enable signal EN is low and −Vwhen enable signal EN is high. The circuit includes a control circuit and an output circuit. The control circuit includes a control high power source Vand a control low power source V. The control circuit generates control output signals CON and CON_B to the output circuit to output either 0V if IN is low or −Vif IN is high when EN is high. Only single type Vtransistor is used in the transmission circuit without any reliability concern, no extra bias voltage is need, which reduces the area and keeps the manufacturing cost low.