Usb cable with thermal protection
AssigneeLittelfuse, Inc.
InventorsBoris Golubovic, Kunghao Yu
Life of this patent
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Abstract
A universal serial bus (USB) cable including a power conductor configured to transmit power between a first device and a second device, a configuration channel (CC) conductor configured to allow the first device and the second device to determine whether a connection has been established via the USB cable, and a first positive temperature coefficient (PTC) element coupled to the CC conductor and configured to mitigate current flowing through the CC conductor if a temperature of the first PTC element rises above a predefined trip temperature.
Claims20
A cable comprising:
- a power conductor configured to transmit electrical power between a first device and a second device;
- a data conductor configured to transmit data between the first device and the second device;
- and
- a positive temperature coefficient (PTC) element coupled to the data conductor and configured to mitigate current flowing through the data conductor if a temperature of the PTC element rises above a predefined trip temperature, wherein such mitigation of current flowing through the data conductor indicates to at least one of the first device and the second device that the data conductor has been disconnected, whereby electrical power flowing through the power conductor is resultantly mitigated.
A system for providing over-temperature protection comprising:
- a first device and a second device connected to one another by a cable, wherein the cable comprises:
- a power conductor configured to transmit electrical power between the first device and the second device;
- a data conductor configured to transmit data between the first device and the second device;
- and
- a positive temperature coefficient (PTC) element coupled to the data conductor and configured to mitigate current flowing through the data conductor if a temperature of the PTC element rises above a predefined trip temperature;
- wherein at least one of the first device and the second device is configured to reduce an amount of electrical power transmitted via the power conductor upon mitigation of the current flowing through the data conductor.
Dependencies are inferred from the claim text.