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:
Sep. 07, 2021
Filed:
Jun. 10, 2019
Samsung Electronics Co., Ltd., Suwon-si, KR;
Tae-Jin Jeong, Incheon, KR;
Hyun-Su Kim, Suwon-si, KR;
Samsung Electronics Co., Ltd., Suwon-si, KR;
Abstract
A load switch circuit includes a charging transistor, a current sensor, a voltage sensor, a selector, a current controller and a mode controller. The charging transistor is connected between a first switch node and a second switch node and controls a charging current in response to a charging control signal. The current sensor is connected to the first switch node and the second switch node and senses the charging current to generate a current sensing signal. The voltage sensor is connected to the first switch node and the second switch node and senses a source-drain voltage of the charging transistor to generate a voltage sensing signal. The selector selects the current sensing signal or the voltage sensing signal in response to a mode signal to generate a selection voltage signal. The current controller compares the selection voltage signal with a reference voltage to generate the charging control signal.