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US 2020/0007120 A1Published application
Apparatus and method for over-voltage protection
AssigneeIntel IP Corporation
InventorsDharmarayi Nedalgi, Karthik NS, Vani Deshpande, Leonhard Heiss
Life of this patent
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Abstract
An apparatus is provided which comprises: a dual stack voltage driver, wherein the dual stack voltage driver comprises a first stack of transistors, and a second stack of transistors; and one or more feedback transistors each coupled to a transistor of the second stack of transistors.
Claims21
An apparatus comprising:
- a first power supply rail to provide a first power supply;
- a second power supply rail to provide a second power supply, wherein the first power supply is higher than the second power supply;
- a first stack of transistors of a same conductivity type, the first stack including a first transistor and a second transistor coupled in series and having a first common node, wherein the first transistor is coupled to the first power supply rail;
- a second stack of transistors of an opposite conductivity type to the first stack of transistors, the second stack including a third transistor and a fourth transistor coupled in series and having a second common node, wherein the second stack of transistor is coupled in series to the first stack of transistors and having a third common node, wherein a gate terminal of the third transistor is coupled to a circuitry which is coupled to the second power supply rail;
- and
- a feedback transistor of a same conductivity type of the third transistor coupled to the second common node and a gate terminal of the third transistor of the second stack.
3 more elements
A system comprising:
- a memory;
- a processor coupled to the memory, the processor including:
- a first power supply rail to provide a first power supply;
- a second power supply rail to provide a second power supply, wherein the first power supply is higher than the second power supply;
- a first stack of transistors of a same conductivity type, the first stack including a first transistor and a second transistor coupled in series and having a first common node, wherein the first transistor is coupled to the first power supply rail;
- a second stack of transistors of an opposite conductivity type to the first stack of transistors, the second stack including a third transistor and a fourth transistor coupled in series and having a second common node, wherein the second stack of transistor is coupled in series to the first stack of transistors and having a third common node, wherein a gate terminal of the third transistor is coupled to a circuitry which is coupled to the second power supply rail;
- and
- a feedback transistor of a same conductivity type of the third transistor coupled to the second common node and a gate terminal of the third transistor of the second stack;
- and
- a wireless interface to allow the processor to communicate with another device.
7 more elements
An apparatus comprising:
- a dual stack voltage driver, wherein the dual stack voltage driver comprises a first stack of transistors, and a second stack of transistors, wherein the second stack of transistors is coupled in series to the first stack of transistors;
- and
- one or more feedback transistors each coupled to a transistor of the second stack of transistors.
Dependencies are inferred from the claim text.