Utility model content
The utility model, for the technical matters of above-mentioned existence, proposes a kind of USB Multifunctional interface circuit with HDMI, the function that can realize message exchange, data transmission simultaneously and charge.
The technical solution of the utility model is: a kind of USB Multifunctional interface circuit with HDMI, comprise: be electrically connected multifunction conjunction, HDMI, USB2.0 interface and USBC interface with electronic installation, HDMI equipment, USB2.0 electronic installation and external power supply respectively, described multifunction conjunction inside arranges PowerDelivery chip, USBSerial chip, USBC-HDMI conversion chip, USBC signal input connector, Powermosfet power supply, power conversion chip, USB2.0HUB chip; Described USBC signal input connector and PowerDelivery chip, USBC-HDMI conversion chip, power conversion chip, USB2.0HUB chip electrical connect, described USBSerial chip and PowerDelivery chip and USB2.0HUB chip electrical connect, described USB2.0HUB chip is connected with USB2.0 interface, described PowerDelivery chip is connected with described USBC interface, described USBC-HDMI conversion chip is connected with described HDMI, and described Powermosfet power supply and described power conversion chip and PowerDelivery chip and USBC interface are connected.
Further, described PowerDelivery chip adopts CYPD1120, USBSerial chip to adopt CY7C65210, USBC-HDMI conversion chip to adopt PS171, USB2.0HUB chip to adopt CY7C65642.
Further, described USBC signal input connector comprises USBC_RXN0, USBC_RXP0, USBC_RXN1, USBC_RXP1, USBC_RXN2, USBC_RXP2, USBC_RXN3, USBC_RXP3 and USBC_DM, USBC_DP pin respectively with portable electric device, USB2.0 electronic installation is electrically connected, the TMDS of HDMI and USBC-HDMI conversion chip, DDC, HPD pin connects, the USB2.0 data of electronic installation, two groups are separated into via this USB2.0HUB, one group in order to export the normal data signals of USB2.0 to USBC-HDMI conversion chip, another group is in order to export the normal data signals of USB2.0 to USB2.0 electronic installation by USB2.0 interface.
The beneficial effects of the utility model:
Electronic apparatus turns HDMI+USB2.0+USBC Multifunctional interface circuit by USBC, effectively makes the not power-off of front portion device continuous firing; Back end electronics device is effectively made to carry out data transmission by USB2.0 interface.
Embodiment
See Fig. 1, it is a kind of USB Multifunctional interface circuit structural drawing with HDMI that the utility model proposes.
As shown in Figure 1, a kind of USB Multifunctional interface circuit with HDMI, comprise: be electrically connected multifunction conjunction 10, HDMI, USB2.0 interface and USBC interface with electronic installation 20, HDMI equipment 40, USB2.0 electronic installation 70 and external power supply 80 respectively, described multifunction conjunction 10 inside arranges PowerDelivery chip 101, USBSerial chip 102, USBC-HDMI conversion chip 103, USBC signal input connector 104, Powermosfet power supply 105, power conversion chip 106, USB2.0HUB chip 107, described USBC signal input connector 104 and PowerDelivery chip 101, USBC-HDMI conversion chip 103, power conversion chip 106, USB2.0HUB chip 107 is electrically connected, described USBSerial chip 102 is electrically connected with PowerDelivery chip 101 and USB2.0HUB chip 107, described USB2.0HUB chip 107 is connected with USB2.0 interface, described PowerDelivery chip 101 is connected with described USBC interface, described USBC-HDMI conversion chip 103 is connected with described HDMI, described Powermosfet power supply 105 and described power conversion chip 104 and PowerDelivery chip 101 and USBC interface are connected.
In the utility model embodiment, described electronic equipment 20 is connected with USBC signal input connector 104, PowerDelivery chip 101 is powered to DC-DC106 through VCON, VBUS is exported through PowerDelivery chip 101CC line traffic control electronic installation, again through DC-DC106 to PowerDelivery chip 101, USBSerial chip 102, USBC-HDMI conversion chip 103 carries out big current and powers.
Power supply 80 is powered to POWERMOSFET105 through USBC interface 50, and POWERMOSFET105 powers with electronic installation 20 and DC-DC106 respectively, and this POWERMOSFET105 can charge to electronic installation 20, and charge power can reach 12W.
See Fig. 2, it is a kind of USB Multifunctional interface circuit structural drawing with HDMI that the utility model proposes.
As shown in Figure 2, described PowerDelivery chip 101 adopts CYPD1120, USBSerial chip 102 to adopt CY7C65210, USBC-HDMI conversion chip 103 to adopt PS171, USB2.0HUB chip 107 to adopt CY7C65642.
Further, described USBC signal input connector 104 comprises USBC_RXN0, USBC_RXP0, USBC_RXN1, USBC_RXP1, USBC_RXN2, USBC_RXP2, USBC_RXN3, USBC_RXP3 and USBC_DM, USBC_DP pin respectively with portable electric device 20, USB2.0 electronic installation 70 is electrically connected, the TMDS of HDMI 30 and USBC-HDMI conversion chip 103, DDC, HPD pin connects, the USB2.0 data of electronic installation 20, two groups are separated into via this USB2.0HUB107, one group in order to export the normal data signals of USB2.0 to USBC-HDMI conversion chip, another group is in order to export the normal data signals of USB2.0 to USB2.0 electronic installation 70 by USB2.0 interface 60.
Wherein, due to backward compatible USB3.0 and the USB2.0 standard of this USBC signal converter 10, therefore, the vision signal of this electronic installation 20 can be not only the ultra high-definition vision signal of 4k resolution, can also comprise the vision signal of 2k resolution.
This USBC-HDMI+USB2.0+USBC interface circuit is connected with portable electric device, to be electrically connected with electronic installation, in order to the vision signal of this electronic installation to be inputed to respectively the USBC_RXN0 of USBC-HDMI conversion chip with the standard of USB3.1 and USB2.0, USBC_RXP0, USBC_RXN1, USBC_RXP1, USBC_RXN2, USBC_RXP2, USBC_RXN3, the USBC_DM of USBC_RXP3 and USB2.0HUB, USBC_DP, this USBC-HDMI+USB2.0 mono-road chip converts HDMI signal to by with the vision signal of the standard input of USB3.1, and synchronism output, and the HDMI to be connected with TMDS, DDC, HPD pin of USBC-HDMI conversion chip, the vision signal that this HDMI transmits this electronic installation by HDMI connecting line exports HDMI display device to, another road is separated into two groups of USB2.0 data by with the standard input data of USB2.0 by USB2.0HUB, and one group uses to HDMI conversion chip, and another group is USB2.0 and is transmitted data use.
The Multifunctional interface circuit that the utility model provides the conversion of a kind of multifunctional signal, transmission and charges, the picture of high definition 4K*2K and video geometric ratio can be played to HDMI display device, to reach display effect and the USB2.0 data-transformation facility of high definition, greatly meet the requirement of people's vision and amusement.
Above the utility model is described in detail, but the utility model is not limited to above-mentioned embodiment, in the ken that those of ordinary skill in the art possess, can also makes a variety of changes under the prerequisite not departing from the utility model aim.Do not depart from design of the present utility model and scope can make many other and change and remodeling.Should be appreciated that the utility model is not limited to specific embodiment, scope of the present utility model is defined by the following claims.