Invention Grant
- Patent Title: Maintaining safe operating area operation of transistors during ramp up
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Application No.: US16906347Application Date: 2020-06-19
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Publication No.: US11316509B1Publication Date: 2022-04-26
- Inventor: Yung-Tsung Hsieh
- Applicant: ZT Group Int'l, Inc.
- Applicant Address: US NJ Secaucus
- Assignee: ZT Group Int'l, Inc.
- Current Assignee: ZT Group Int'l, Inc.
- Current Assignee Address: US NJ Secaucus
- Agency: Dergosits & Noah LLP
- Agent Todd A. Noah
- Main IPC: H03K17/0812
- IPC: H03K17/0812

Abstract:
Systems and methods are described for controlling inrush current for a system comprising a plurality of metal-oxide-semiconductor field-effect transistors (MOSFETs). The system may include a control circuit coupled to parallel series of gate drivers, where each gate driver is coupled to a different MOSFET. An inrush current may be received during charging of a capacitor of the switch circuit. During a first period of a ramp time, the control circuit may cause the inrush current to pass through a first gate driver. During a second period of the ramp time, the control circuit may cause the inrush current to pass through a second gate driver. By using a control circuit to cause the inrush current to pass through each MOSFET, a gate-source threshold voltage for the MOSFETs may remain below safe operating areas (SOAs) for the different MOSFETs.
Information query
IPC分类: