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US 9,853,637 B1Granted
Dual gate switch device
AssigneeInfineon Technologies AG
InventorsAndreas Meiser, Anton Mauder, Jens Barrenscheen
Life of this patent
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Abstract
Switch devices using switch transistors with dual gates are provided. The dual gates may be controlled independently from each other by first and second gate driver circuits.
Claims19
A switch device, comprising:
- a switch transistor having a first gate and a second gate, wherein each gate controls part of a channel of the switch transistor,
- a first gate driver circuit coupled to the first gate, and
- a second gate driver circuit coupled to the second gate, the second gate driver circuit being independent from the first gate driver circuit, wherein the switch transistor is configured such that the switch transistor is in an on-state only when an active signal level is present at the first gate and when the active signal level is present at the second gate.
A method comprising:
- providing a dual gate switch transistor that includes a first gate and a second gate, wherein the dual gate switch transistor is configured to be in an on-state only when an active signal level is present at the first gate and when the active signal level is present at the second gate,
- coupling a first gate driver circuit to the first gate of the dual gate switch transistor, and
- coupling a second gate driver circuit different from the first gate driver circuit to the second gate of the dual gate switch transistor.
A method, comprising:
- controlling an electronic switch by a first control signal, wherein the electronic switch includes a first gate and a second gate and is configured to be in an on-state only when an active signal level is present at the first gate and when the active signal level is present at the second gate,
- controlling the electronic switch by a second control signal independent from the first control signal, and
- combining the first and second control signals within the electronic switch.
Dependencies are inferred from the claim text.