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:
Nov. 30, 2021
Filed:
Apr. 30, 2020
Southeast University, Nanjing, CN;
SOUTHEAST UNIVERSITY, Nanjing, CN;
Abstract
A wide voltage trans-impedance amplifier includes a first P-channel metal oxide semiconductor (PMOS) transistor PM, a second PMOS transistor PM, a third PMOS transistor PM, a fourth PMOS transistor PM, a fifth PMOS transistor PM, a first bias voltage VB, a second bias voltage VB, a third bias voltage VB, a first N-channel metal oxide semiconductor (NMOS) transistor NM, and a second NMOS transistor NM. A common-gate amplifier detects a change of an input voltage, and a negative feedback is constructed by injecting a current into a current mirror to achieve a low input impedance. The trans-impedance amplifier uses a common-gate amplifier to monitor an input voltage and uses a current mirror to perform the transconductance enhancement on an input transistor, while ensuring a relatively high loop gain.