公开(公告)号：US20170201091A1

公开(公告)日：2017-07-13

申请号：US15012108

申请日：2016-02-01

Applicant: Analog Devices Global

Inventor： Bin Shao ,  Yanfeng Lu ,  Scott D. Biederwolf

IPC: H02J1/00

CPC classification number: H02J7/345 ,  H02J2007/0001

Abstract: Apparatus and techniques described herein can include a load circuit comprising a direct current (DC) input terminal, and a source circuit comprising a direct current (DC) output terminal coupled to the DC input terminal of the load circuit. The source circuit can include a source control circuit configured to provide a current-limited DC output voltage and monitor the current-limited DC output voltage to detect an authentication signal provided at the DC output terminal by the load circuit, the load circuit configured to modulate the voltage at the DC output terminal using a pull-down circuit. The load circuit can be configured to compare the supply voltage at the DC input terminal to a reference voltage and, in response, energize other portions of the load circuit when the input current provided the DC input terminal is sufficient as indicated at least in part by the comparison.

公开(公告)号：US10170929B2

公开(公告)日：2019-01-01

申请号：US15012108

申请日：2016-02-01

Applicant: Analog Devices Global

Inventor： Bin Shao ,  Yanfeng Lu ,  Scott D. Biederwolf

IPC: H02J1/10 ,  H02J7/34 ,  H02J7/00

Abstract: Apparatus and techniques described herein can include a load circuit comprising a direct current (DC) input terminal, and a source circuit comprising a direct current (DC) output terminal coupled to the DC input terminal of the load circuit. The source circuit can include a source control circuit configured to provide a current-limited DC output voltage and monitor the current-limited DC output voltage to detect an authentication signal provided at the DC output terminal by the load circuit, the load circuit configured to modulate the voltage at the DC output terminal using a pull-down circuit. The load circuit can be configured to compare the supply voltage at the DC input terminal to a reference voltage and, in response, energize other portions of the load circuit when the input current provided the DC input terminal is sufficient as indicated at least in part by the comparison.