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:
Jan. 28, 2020
Filed:
Dec. 15, 2017
Delta Electronics, Inc., Taoyuan, TW;
Tien-He Chen, Taoyuan, TW;
Che-Min Chen, Taoyuan, TW;
DELTA ELECTRONICS, INC., Taoyuan, TW;
Abstract
A power-up control circuit is provided and includes a pull-down resistor, a pull-down switch, and an enable device. A first terminal of the pull-down resistor is electrically connected to a configuration channel pin of a USB Type-C connection port. The pull-down switch is electrically connected to a second terminal of the pull-down resistor and a ground node. The enable device is electrically connected to the pull-down switch and the configuration channel pin. When receiving a voltage detection signal which is transmitted by a dual-role port device through the configuration channel pin, the enable device turns on the pull-down switch to electrically connect the pull-down resistor to the ground node, so that the dual-role port device detects the pull-down resistor through the configuration channel pin and supplies power to the microcontroller through a power supply pin to keep the microcontroller in the power-up status.