HDMI power supply device and transmission system

Abstract

The present application provides an HDMI power supply device, including a power supply controller, a power-supply-end HDMI connection port, and at least two power-supply-end data transmitters. The power-supply-end HDMI connection port comprises at least two pairs of power-supply-end transmitting differential pins. The power supply controller is configured to receive a power supply voltage and correspondingly output at least two power signals to the at least two pairs of power-supply-end transmitting differential pins based on the power supply voltage. The at least two power-supply-end data transmitters are configured to respectively output at least two differential HDMI data signals, which are transmitted to the at least two pairs of power-supply-end transmitting differential pins via at least two power-supply-end transformers. The present application further provides an HDMI transmission system. Thus, the HDMI power supply device and transmission system provided herein enable simultaneous transmission of HDMI data signals and power signals.

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