Invention Grant
- Patent Title: Voltage tolerant floating N-well circuit
- Patent Title (中): 耐压漂浮N阱电路
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Application No.: US11832128Application Date: 2007-08-01
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Publication No.: US07768299B2Publication Date: 2010-08-03
- Inventor: Abheek Gupta , Vaishnav Srinivas , Vivek Mohan
- Applicant: Abheek Gupta , Vaishnav Srinivas , Vivek Mohan
- Applicant Address: US CA San Diego
- Assignee: QUALCOMM, Incorporated
- Current Assignee: QUALCOMM, Incorporated
- Current Assignee Address: US CA San Diego
- Agent Donald C. Kordich; William M. Hooks
- Main IPC: H03K19/0175
- IPC: H03K19/0175

Abstract:
Methods and apparatuses are presented for voltage tolerant floating N-well circuits. An apparatus for mitigating leakage currents caused by input voltages is presented which includes a first transistor having a source coupled to a positive voltage supply, and a drain coupled to a floating node. The apparatus may further include a controllable pull-down path coupled to a negative voltage supply and the first transistor, wherein the controllable pull-down path is configured to turn on the first transistor and pull-up the floating node during a first state. The apparatus may further include a second transistor having a source coupled to a gate of the first transistor, and drain coupled to the floating node, wherein the second transistor is configured to place the floating node at a floating potential during a second state.
Public/Granted literature
- US20090033400A1 VOLTAGE TOLERANT FLOATING N-WELL CIRCUIT Public/Granted day:2009-02-05
Information query
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