Overvoltage protection for universal serial bus type-C (USB-C) connector systems
First Claim
1. An electronic device, comprising:
- a first switch configured to connect a first configuration channel (CC) terminal of a Universal Serial Bus Type-C (USB-C) controller to a VCONN supply of the USB-C controller, the first CC terminal of the USB-C controller being configured to be directly connected to the first CC terminal of a USB-C receptacle;
a second switch configured to connect a second CC terminal of the USB-C controller to a control channel physical layer logic (PHY) of the USB-C controller, the second CC terminal to be directly connected to the second CC terminal of the USB-C receptacle; and
an overvoltage detection and protection circuit configured to deactivate the first switch or the second switch when a voltage exceeding a predetermined threshold is detected on a terminal of the first switch or the second switch, wherein the first switch and the second switch are each coupled to the overvoltage detection and protection circuit.
3 Assignments
0 Petitions
Accused Products
Abstract
An electronic device includes a first switch configured to connect a first configuration channel (CC) terminal of a Universal Serial Bus Type-C (USB-C) controller to a VCONN supply of the USB-C controller. The first CC terminal of the USB-C controller being is to directly connect to the first CC terminal of a USB-C receptacle. The electronic device includes a second switch configured to connect a second CC terminal of the USB-C controller to a control channel physical layer logic (PHY) of the USB-C controller. The second CC terminal is to directly connect to the second CC terminal of the USB-C receptacle. The electronic device includes an overvoltage detection and protection circuit configured to deactivate the first switch or the second switch when a voltage exceeding a predetermined threshold is detected. The first switch and the second switch are each coupled to the overvoltage detection and protection circuit.
28 Citations
20 Claims
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1. An electronic device, comprising:
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a first switch configured to connect a first configuration channel (CC) terminal of a Universal Serial Bus Type-C (USB-C) controller to a VCONN supply of the USB-C controller, the first CC terminal of the USB-C controller being configured to be directly connected to the first CC terminal of a USB-C receptacle; a second switch configured to connect a second CC terminal of the USB-C controller to a control channel physical layer logic (PHY) of the USB-C controller, the second CC terminal to be directly connected to the second CC terminal of the USB-C receptacle; and an overvoltage detection and protection circuit configured to deactivate the first switch or the second switch when a voltage exceeding a predetermined threshold is detected on a terminal of the first switch or the second switch, wherein the first switch and the second switch are each coupled to the overvoltage detection and protection circuit. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A system, comprising:
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a Universal Serial Bus Type-C (USB-C) receptacle comprising a first configuration channel (CC) terminal, the first CC terminal of the USB-C receptacle being configured to be directly connected to a first CC terminal of a USB-C controller; and a first switch configured to connect a first configuration channel (CC) terminal of a Universal Serial Bus Type-C (USB-C) controller to a VCONN supply of the USB-C controller, the first CC terminal of the USB-C controller being configured to be directly connected to the first CC terminal of a USB-C receptacle; a second switch configured to connect a second CC terminal of the USB-C controller to a control channel physical layer logic (PHY) of the USB-C controller, the second CC terminal being configured to be directly connected to the second CC terminal of the USB-C receptacle; and an overvoltage detection and protection circuit configured to deactivate the first switch or the second switch when a voltage exceeding a predetermined threshold is detected on a terminal of the first switch or the second switch, wherein the first switch and the second switch are each coupled to the overvoltage detection and protection circuit. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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15. A method, comprising:
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detecting, by a Universal Serial Bus Type-C (USB-C) controller, an orientation of a plug mated with a USB-C receptacle coupled with the USB-C controller; coupling a control channel physical layer logic (PHY) of the USB-C controller to a first configuration channel (CC) terminal of the USB-C controller using a first switch; coupling a VCONN supply terminal to a second CC terminal of the USB-C controller using a second switch; coupling a first sideband use (SBU) terminal and a second SBU terminal of the USB-C controller with a first SBU terminal and second SBU terminal of a SBU crossbar switch of the USB-C controller using a third switch and a fourth switch; detecting that a voltage on the first CC terminal or the second CC terminal is greater than a predetermined threshold; and in response to detecting that the voltage is greater than the predetermined threshold, deactivating the first switch or the second switch based at least in part on whether the voltage corresponds to a terminal on the first switch or the second switch. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification