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US 2020/0267018 A1Published application
Low-power wake-up circuit for controller area network (can) transceiver
AssigneeTexas Instruments Incorporated
InventorsLokesh Kumar GUPTA, Basant BOTHRA
Life of this patent
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Abstract
A system includes a controller area network (CAN) transceiver. The CAN transceiver includes a wake-up circuit having an attenuator circuit coupled to a CAN bus. The wake-up circuit also includes a common-gate amplifier circuit coupled to the attenuator circuit. The wake-up circuit also includes an offset generation circuit coupled to the common-gate amplifier circuit.
Claims22
A system, comprising:
- a controller area network (CAN) transceiver, wherein the CAN transceiver comprises a wake-up circuit having:
- an attenuator circuit coupled to a CAN bus;
- a common-gate amplifier circuit coupled to the attenuator circuit;
- and
- an offset generation circuit coupled to the common-gate amplifier circuit.
2 more elements
A controller area network (CAN) transceiver, comprising:
- a wake-up circuit having:
- an attenuator circuit coupled to a CAN bus;
- an amplifier circuit coupled to the attenuator circuit;
- an offset generation circuit with a bias current circuit coupled to the amplifier circuit.
1 more element
An integrated circuit, comprising:
- a controller area network (CAN) transceiver having a wake-up circuit, wherein the wake-up circuit comprises:
- an attenuator circuit coupled to a CAN bus;
- an amplifier circuit coupled to the attenuator circuit;
- an offset generation circuit coupled to the amplifier circuit;
- a bias current circuit included with the offset generation circuit and coupled to the amplifier circuit;
- and
- an under-voltage lockout (UVLO) circuit coupled to the bias current circuit.
4 more elements
Dependencies are inferred from the claim text.