Invention Grant
- Patent Title: Current sensing with compensation for component variations
-
Application No.: US14877696Application Date: 2015-10-07
-
Publication No.: US09678111B2Publication Date: 2017-06-13
- Inventor: Xiaoqun Liu , Siamak Delshadpour
- Applicant: NXP B.V.
- Applicant Address: NL Eindhoven
- Assignee: NXP B.V.
- Current Assignee: NXP B.V.
- Current Assignee Address: NL Eindhoven
- Main IPC: G01R1/20
- IPC: G01R1/20 ; G01R15/14 ; H03K3/011 ; G01R19/00 ; G01R19/32

Abstract:
A system can provide current detection in an integrated circuit (IC) chip while compensating for variations in circuit components resulting from process, voltage supply, temperature, or combinations thereof. The system can include the IC chip that has a power switch circuit that includes a power circuit path including a first transistor connected to a power source through a first conductive trace that has a first resistance value, and to a load by a second conductive trace having a second resistance value. A current detection circuit is configured to compensate for the variations in the power switch circuit using a sense circuit path that is configured to match process, voltage supply, and temperature variations in the power circuit path.
Public/Granted literature
- US20170102413A1 CURRENT SENSING WITH COMPENSATION FOR COMPONENT VARIATIONS Public/Granted day:2017-04-13
Information query