CN202634582U

CN202634582U - Signal converter for converting MHL (Mobile High-Definition Link) signal into HDMI (High-Definition Multimedia Interface) signal

Info

Publication number: CN202634582U
Application number: CN 201220277365
Authority: CN
Inventors: 李森山; 高全程
Original assignee: SHENZHEN EAST-TOPTECH ELECTRONIC TECHNOLOGY Co Ltd
Current assignee: SHENZHEN EAST-TOPTECH ELECTRONIC TECHNOLOGY Co Ltd
Priority date: 2012-06-13
Filing date: 2012-06-13
Publication date: 2012-12-26
Anticipated expiration: 2022-06-13

Abstract

The utility model discloses a signal converter for converting an MHL (Mobile High-Definition Link) signal into an HDMI (High-Definition Multimedia Interface) signal, comprising an MHL input port for inputting the MHI signal, a conversion module, an HDMI output port and a power supply module, wherein the MHL input port is used for inputting the MHL signal; the conversion module is connected with the MHL input port and is used for converting the MHL signal into the HDMI signal; the HDMI output port is connected with the conversion module and is used for outputting the HDMI signal; and the power supply module is used for supplying power to the conversion module. The signal converter disclosed by the utility model has the advantages that 1, the signal converter can be directly connected to a television and an HDMI connection wire is not needed; 2, a Mini-USB (Universal Serial Bus) port is compatible and can support 720 p/1080 i/1080 p; 3, a 5-V power supply can be provided for portable equipment to charge; and 4, a USB function is supported; and an HDMI port, the USB port and a charging port are combined together, so that the port quantity on the equipment is effectively reduced.

Description

With the MHL signal transition is the signal converter of HDMI signal

Technical field

The utility model relates to signal converter, and relating in particular to a kind of is the signal converter of HDMI signal with the MHL signal transition.

Background technology

Become the new mode of amusement and study through portable electric appts appreciation high definition picture and video; MHL is the audio-visual standard interface of portable electric appts; But when the user was connected to the large-screen HDTV to these portable electric appts through the existing standard analog interface, the quality of image descended through regular meeting.Existing HDTV all has the HDMI interface, and it is the signal converter of HDMI signal that a kind of MHL conversion of signals with portable electric appts is needed in market badly, to satisfy the various demand of people.

The utility model content

The utility model is the problems referred to above that will solve prior art, and proposing a kind of MHL conversion of signals with portable electric appts is the signal converter of HDMI signal.

For solving the problems of the technologies described above; The technical scheme that the utility model proposes be design a kind of be the signal converter of HDMI signal with the MHL signal transition, it comprises: in order to the MHL input interface of input MHL signal, connect the MHL input interface in order to the MHL conversion of signals be the HDMI signal modular converter, connect modular converter in order to the HDMI output interface of output HDMI signal and to the supply module of modular converter power supply.

Said supply module comprise one connect outside 5V DC power supply USB interface, connect USB interface in order to the 5V direct current is converted into the galvanic 1.2V power module of 1.2V.

Be connected a transmission lines cable between said MHL input interface and the modular converter, and the MHL input interface places in the housing, modular converter, HDMI output interface and supply module place in another housing.

Compared with prior art; Displaying contents on the height that the utility model can be perfectly has MHL output to mobile phone or panel computer, PAD etc. is radically reformed directly is shown to TV with the output of HDMI signal; Let people on bigger screen, watch picture; Video or lantern slide, and do not damage the effect of high definition fully.And have following advantage: 1, the MHL signal is directly changed into the public signal of HDMI A, be directly connected to television set, the centre does not need the HDMI connecting line to connect, and has saved expensive HDMI connecting line.2, on the basis of compatible Mini-USB interface, develop the standard that to transmit the high-definition audio and video signal, can support 720p/1080i/1080p.3, by the USB interface input external power supply on HDMI output interface next door, can be to the portable equipment charging that is plugged on the MHL input interface.3, support the USB function.HDMI interface, USB interface, three mouthfuls of unifications of charging inlet have effectively reduced the interface number on the equipment.

Description of drawings

Below in conjunction with accompanying drawing and embodiment the utility model is made detailed explanation, wherein:

Fig. 1 is the theory diagram of the utility model preferred embodiment;

Fig. 2 is the product appearance figure of the utility model preferred embodiment;

Fig. 3 is the circuit diagram of the MHL input interface of the utility model preferred embodiment;

Fig. 4 is the circuit diagram of the HDMI output interface of the utility model preferred embodiment;

Fig. 5 is the circuit diagram of the supply module of the utility model preferred embodiment;

Fig. 6 is the circuit diagram of the modular converter of the utility model preferred embodiment;

Fig. 7 is the circuit diagram of the USB interface of the utility model preferred embodiment.

Embodiment

It is the signal converter of HDMI signal with the MHL signal transition that the utility model has disclosed a kind of; Referring to the theory diagram shown in Fig. 1; It comprises: the MHL input interface, modular converter, the HDMI output interface that connect successively, and to the supply module of modular converter power supply.Referring to the circuit diagram of the MHL input interface shown in Fig. 3, J1 is the MHL input interface, in order to input MHL signal; Q1 and Q3 are used for voltage detecting.Referring to the circuit diagram of the modular converter shown in Fig. 6, U1 is a conversion chip, and model is SiI9292, and its effect is to be the HDMI signal with the MHL conversion of signals, and its

input pin

34,34 connects J1, is connected in series an electrostatic protection chip U5 between the two.Referring to Fig. 4, CN2 is the HDMI output interface, and its effect is an output HDMI signal, is connected in series electrostatic protection chip U2, U3 between CN2 and the U1 output pin 22 to 29.

The required electric energy of conversion chip is provided by external dc power, said supply module comprise one connect outside 5V DC power supply USB interface, connect USB interface in order to the 5V direct current is converted into the galvanic 1.2V power module of 1.2V.Fig. 7 shows the circuit diagram of USB interface, and Fig. 5 shows the circuit diagram of supply module, and the 1.2V power module is supplied power to conversion chip.

Outside drawing referring to the preferred embodiment shown in Fig. 2; Be connected a transmission lines cable 2 between MHL input interface 1 and the modular converter; And the MHL input interface places in the housing 3; Modular converter, HDMI output interface 6 and supply module place in another housing 4, from figure, can see that the sidewall of this housing 4 has a USB interface 5.This USB interface can external 5V power supply, can be used for to the cell-phone charging that is inserted on the MHL input interface.Transmission cable 2 length are 3 meters in this example.

Above embodiment is merely and illustrates, non-providing constraints.Anyly do not break away from the application's spirit and category, and, all should be contained among the application's the claim scope its equivalent modifications of carrying out or change.

Claims

1. one kind is the signal converter of HDMI signal with the MHL signal transition; It is characterized in that, comprising: in order to the MHL input interface of input MHL signal, connect the MHL input interface in order to the MHL conversion of signals be the HDMI signal modular converter, connect modular converter in order to the HDMI output interface of output HDMI signal and to the supply module of modular converter power supply.

2. as claimed in claim 1 is the signal converter of HDMI signal with the MHL signal transition; It is characterized in that, said supply module comprise one connect outside 5V DC power supply USB interface, connect USB interface in order to the 5V direct current is converted into the galvanic 1.2V power module of 1.2V.

3. as claimed in claim 2 is the signal converter of HDMI signal with the MHL signal transition; It is characterized in that; Be connected a transmission lines cable between said MHL input interface and the modular converter; And the MHL input interface places in the housing, and modular converter, HDMI output interface and supply module place in another housing.