Invention Grant
- Patent Title: Backdrive protection circuit
- Patent Title (中): 反向保护电路
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Application No.: US13052271Application Date: 2011-03-21
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Publication No.: US08400193B2Publication Date: 2013-03-19
- Inventor: Andreas Johannes Köllmann
- Applicant: Andreas Johannes Köllmann
- Applicant Address: NL Eindhoven
- Assignee: NXP B.V.
- Current Assignee: NXP B.V.
- Current Assignee Address: NL Eindhoven
- Main IPC: H03K3/00
- IPC: H03K3/00

Abstract:
Methods, devices and circuits are provided for protection from backdrive current. One such device is subject to back voltage from an output node of the device and includes circuitry that is configured to compare the supply voltage node and the output node. In response to the comparison, the circuitry generates an output signal. Level shifted versions of the output signal are used to provide an output voltage corresponding to the higher of a supply voltage node and an output node. Switches are used to place the device in different modes in response to the output signal.
Public/Granted literature
- US20120242372A1 Backdrive Protection Circuit Public/Granted day:2012-09-27
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