Invention Grant
- Patent Title: Driver output with dynamic switching bias
- Patent Title (中): 驱动器输出具有动态开关偏置
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Application No.: US14541713Application Date: 2014-11-14
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Publication No.: US09401711B2Publication Date: 2016-07-26
- Inventor: Francis Chan , Bo Qu , Si Shi , Songtao Xu
- Applicant: International Business Machines Corporation
- Applicant Address: US NY Armonk
- Assignee: International Business Machines Corporation
- Current Assignee: International Business Machines Corporation
- Current Assignee Address: US NY Armonk
- Agency: Gibb & Riley, LLC
- Agent Steven J. Meyers, Esq.
- Main IPC: H03K3/00
- IPC: H03K3/00 ; H03K17/687

Abstract:
A circuit of an output stage of a push-pull driver having dynamic biasing may include a stacked configuration of field effect transistors (PFETs) having a first PFET, a second PFET, and a third PFET, whereby the first PFET is connected to a first supply voltage, the third PFET is connected to an output of a switchable voltage bias generator circuit, and the second PFET is electrically connected between the first PFET and the third PFET. A transmission gate may be connected to a second supply voltage, whereby the transmission gate electrically connects the second supply voltage to an electrical connection between the first PFET and the second PFET based on a first operating state for preventing a voltage breakdown condition associated with the stacked configuration of PFETs. The third PFET is bias controlled via the switching of the output of the switchable voltage bias generator circuit.
Public/Granted literature
- US20160142051A1 DRIVER OUTPUT WITH DYNAMIC SWITCHING BIAS Public/Granted day:2016-05-19
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