Invention Grant
- Patent Title: Power switch over current protection system
-
Application No.: US16171012Application Date: 2018-10-25
-
Publication No.: US10998897B2Publication Date: 2021-05-04
- Inventor: Xiaoqun Liu , Madan Mohan Reddy Vemula
- Applicant: NXP B.V.
- Applicant Address: NL Eindhoven
- Assignee: NXP B.V.
- Current Assignee: NXP B.V.
- Current Assignee Address: NL Eindhoven
- Main IPC: H03K17/082
- IPC: H03K17/082 ; H03K17/693 ; H03K17/687 ; H03K17/567 ; H03K17/081 ; H02H9/02

Abstract:
A power switch over current protection system including a power switch transistor configured to deliver a power current from a power source to power load, a power switch driver configured to control and on/off state of the power switch, an over current protection (OCP) circuit to detect a threshold value of the power current, a discharge transistor configured to discharge a parasitic capacitance of the power switch transistor, and a system state machine to receive a signal from the OCP circuit configured to control an action of the power switch driver and discharge transistor depending on the level of the power current.
Information query
IPC分类: