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:
May. 26, 2020
Filed:
Jun. 21, 2018
Samsung Electro-mechanics Co., Ltd., Suwon-si, KR;
Bo Hyun Hwang, Suwon-si, KR;
Dae Hee No, Suwon-si, KR;
Jun Goo Won, Suwon-si, KR;
Ki Joong Kim, Suwon-si, KR;
Sung Hwan Park, Suwon-si, KR;
Da Hye Park, Suwon-si, KR;
Samsung Electro-Mechanics Co., Ltd., Suwon-si, KR;
Abstract
A power amplifier circuit includes a bias circuit and an amplifier circuit. The bias circuit includes a first bias circuit to receive a reference voltage and an operation voltage and generate a first bias signal, a bias supply circuit to transmit the base bias signal to a base of a power amplifier, based on the first bias signal input from the first bias circuit, a switching control circuit to transmit a switching signal after a preset delay time based on a driving start signal, and a switching circuit connected between an output node of the first bias circuit and a ground, to operate in an ON state after the delay time in response to the switching signal to form a current path between the output node of the first bias circuit and the ground.