Usb type-c adapter module and activating method for the same
AssigneeDelta Electronics, Inc.
InventorsTien-He CHEN, Che-Min CHEN
Life of this patent
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Abstract
A module comprising a USB Type-C receptacle, a USB Type-C plug and a logic unit is disclosed. A power pin of the receptacle is connected with another power pin of the plug via a switch. A CC pin of the receptacle is connected to ground through a pull-down resistance. Another CC pin of the plug is connected to the logic unit through a pull-up resistance. The module connects with a power source device being a power sink-role in order to receive a source capability of the power source device, then turns on the switch and transforms itself to a power source-role. The module connects to a DRP device afterward being the power source-role to act for the power source device and perform a USB PD communication with the DRP device.
Claims19
A USB Type-C adapter module, comprising:
- a USB Type-C receptacle comprising a first power pin and a first configuration channel pin;
- a USB Type-C plug comprising a second power pin, a second configuration channel pin, and a USB2.0 data pin;
- a logic unit connected to the second configuration channel pin and the USB2.0 data pin, wherein the logic unit is configured to connect to the first power pin via a first diode, connect to the second power pin via a second diode, and receive an initial power for operation from the first power pin or the second power pin;
- a pull-up resistance connected to the logic circuit and the second configuration channel pin;
- a first pull-down resistance connected to the first configuration pin and configured to ground the first configuration pin;
- a switch connected to the first power pin and the second power pin, the switch being configured to be actuated and transform the USB Type-C adapter module to a power sink role or a power source role;
- wherein the USB Type-C adapter module is configured to connect with a power source device via the USB Type-C receptacle and, as the power sink role, receive a source capability from the power source device, and
- wherein the USB Type-C adapter module is further configured to connect with a dual role port (DRP) device via the USB Type-C plug and, as the power source role, perform a USB power delivery (PD) communication with the DRP device.
A USB Type-C adapter module, comprising:
- a USB Type-C receptacle comprising a first power pin and a first configuration channel pin;
- a USB Type-C plug comprising a second power pin, a second configuration channel pin, and a USB2.0 data pin;
- a logic unit connected to the second configuration channel pin and the USB2.0 data pin;
- a pull-up resistance connected to the logic circuit and the second configuration channel pin;
- a first pull-down resistance connected to the first configuration pin and configured to ground the first configuration pin;
- a switch connected to the first power pin and the second power pin, the switch being configured to be actuated and transform the USB Type-C adapter module to a power sink role or a power source role;
- wherein the USB Type-C adapter module is configured to connect with a power source device via the USB Type-C receptacle and, as the power sink role, receive a source capability from the power source device, and actuate the switch by the logic unit to transform the USB Type-C adapter module to the power source role when connecting the power source device via the USB Type-C receptacle;
- and
- wherein the USB Type-C adapter module is further configured to connect with a dual role port (DRP) device via the USB Type-C plug and, as the power source role, perform a USB power delivery (PD) communication with the DRP device, and transmit power provided by the power source device to the DRP device through the first power pin, the actuated switch and the second power pin when connecting the DRP device via the USB Type-C adapter module.
Dependencies are inferred from the claim text.