Composite circuit layout

Abstract

A composite circuit layout is arranged on a circuit board and connected with a control processing unit. The composite circuit layout comprises a composite connector contact group, the composite connector contact group is composed of 23 contacts which are horizontally and linearly arranged, and the 23 contacts at least comprise a plurality of grounding pins, a plurality of differential signal pins, two power supply pins, two hot plug detection pins and a switching pin. And the switching pin receives an opening and closing signal of the composite connector arranged on the composite connector contact group, so that the control processing unit can judge whether the composite connector is set as an HDMI connector type or a DisplayPort connector type through the opening and closing signal, and the circuit complexity on the circuit board is simplified.

Description

Technical Field

[0001] The present application relates to a circuit layout, and more particularly to a composite circuit layout that can be used to set different connectors. Background Art

[0002] The circuit boards of electronic devices are usually provided with multiple groups of connector contacts to provide multiple connectors. In order for the electronic devices to connect to external devices and communicate with external devices through these connectors, these circuit boards also need to be pre-configured with circuits to electrically connect the connector contacts to the control processing unit.

[0003] When manufacturing a PCB, some manufacturers don't know which types of connectors will be installed. Therefore, they pre-install multiple sets of connector contacts of different types on the PCB to meet future customer needs. However, pre-installing multiple sets of connector contacts means that more wiring must be pre-installed on the PCB (because each set of connector contacts needs to be connected to the CPU). This not only makes the PCB wiring too crowded, preventing the board from being reduced in size, but also increases the circuit complexity and manufacturing cost. Summary of the Invention

[0004] The main purpose of this application is to provide a composite circuit layout that can be used to selectively connect an HDMI connector, a DisplayPort connector, or an HDMI / DisplayPort composite connector, thereby simplifying the circuit complexity on the circuit board.

[0005] To achieve the above-mentioned objectives, the composite circuit layout of the present application is disposed on a circuit board and connected to a control processing unit on the circuit board. It is characterized by having a composite connector contact group consisting of 23 contacts, wherein the 23 contacts are arranged in a horizontal straight line and include at least a plurality of ground pins, a plurality of differential signal pins, two power pins, two hot plug detection pins, and a switch pin, wherein the switch pin receives an open / close signal from a composite connector disposed on the composite connector contact group, allowing the control processing unit to determine whether the composite connector is configured as an HDMI connector type or a DisplayPort connector type based on the open / close signal.

[0006] As mentioned above, the number of the plurality of differential signal pins is eight, and the number of the plurality of ground pins is four.

[0007] As described above, the multiple differential signal pins include four positive signal pins and four negative signal pins. The four positive signal pins include the second contact, the fifth contact, the eighth contact, and the eleventh contact from the right side of the composite connector contact group. The four negative signal pins include the third contact, the sixth contact, the ninth contact, and the twelfth contact from the right side of the composite connector contact group.

[0008] As described above, the plurality of ground pins include the fourth contact, the seventh contact, the tenth contact, and the thirteenth contact from the right side of the composite connector contact set.

[0009] As described above, the switch pin is the first contact from the right side of the composite connector contact group.

[0010] As described above, the two power pins include the 20th contact and the 22nd contact from the right side of the composite connector contact group.

[0011] As described above, the two hot plug detection pins include the 21st contact and the 19th contact from the right side of the composite connector contact set.

[0012] As described above, the contact widths of the switch pin, three ground pins among the plurality of ground pins, the two power pins and one hot plug detection pin among the two hot plug detection pins are wider than the contact widths of other pins on the composite connector contact set.

[0013] As described above, the widths of the first, fourth, seventh, tenth, twentieth, twenty-first and twenty-second contacts from the right side of the composite connector contact set are wider than the widths of other contacts on the composite connector contact set.

[0014] As described above, the widths of the first, fourth, seventh, tenth, twentieth, twenty-first and twenty-second contacts from the right side of the composite connector contact set are twice the widths of the other contacts on the composite connector contact set.

[0015] The technical benefit achieved by this application over related technologies lies in that only one set of contacts with a composite circuit layout is required on the circuit board, allowing the user to freely choose whether to install an HDMI connector, a DisplayPort connector, or an HDMI / DisplayPort composite connector. This effectively simplifies the contacts and circuits on the circuit board, thereby preserving available space on the circuit board and reducing circuit board manufacturing costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1This is a connection diagram of the composite circuit layout of this application.

[0017] Figure 2 This is a schematic diagram of the first embodiment of the composite connector contact assembly of the present application.

[0018] Figure 3 A schematic diagram of a composite connector.

[0019] Figure 4 This is a schematic diagram of a second embodiment of the composite connector contact assembly of the present application.

[0020] In the picture: 1: circuit board; 11: preset circuit; 2: control processing unit; 3: composite connector contact group; 31: first contact; 32: second contact; 33: third contact; 34: fourth contact; 35: fifth contact; 36: sixth contact; 37: seventh contact; 38: eighth contact; 39: ninth contact; 310: tenth contact; 311: eleventh contact; 312: twelfth contact; 313: thirteenth contact; 314: fourteenth contact; 315: fifteenth contact; 316: sixteenth contact; 317: seventeenth contact; 318: eighteenth contact; 319: nineteenth contact; 320: twentieth contact; 321: twenty-first contact; 322: twenty-second contact; 323: twenty-third contact; 4: composite connector. DETAILED DESCRIPTION

[0021] First refer to Figure 1 , is a schematic diagram of a composite circuit layout of the present application. This application provides a composite circuit layout including a composite connector contact group 3. Specifically, composite connector contact group 3 is composed of a plurality of contacts, and the number of contacts and corresponding pin types conform to the specifications of HDMI connectors and DisplayPort connectors. Therefore, composite connector contact group 3 can be selectively used to configure an HDMI connector, a DisplayPort connector, or an HDMI / DisplayPort composite connector.

[0022] It is worth noting that, in this application, an HDMI / DisplayPort composite connector is a connector having at least twenty-one terminals disposed within a single connector housing. Users can configure the composite connector's signal specifications (e.g., short-circuiting or disconnecting one of the terminals) before installing the composite connector on a circuit board, thereby configuring the composite connector as an HDMI connector (i.e., operating as an HDMI connector) or a DisplayPort connector (i.e., operating as a DisplayPort connector) based on actual needs.

[0023] like Figure 1As shown, the composite connector contact group 3 of the present application is disposed on a circuit board 1 and is electrically connected to a control processing unit 2 via a predetermined circuit 11 on the circuit board 1. Thus, when an HDMI connector, a DisplayPort connector, or an HDMI / DisplayPort composite connector is disposed on the composite connector contact group 3, it can be connected to the control processing unit 2 via the predetermined circuit 11 and controlled by the control processing unit 2. In another embodiment, the composite connector contact group 3 is further electrically connected to a control chip (not shown) on the circuit board 1 via the predetermined circuit 11 on the circuit board, and the control chip determines whether the connector currently disposed on the composite connector contact group 3 complies with the HDMI signal specification or the DisplayPort signal specification.

[0024] The technical advantage of the present invention is that, instead of requiring at least two connector contact groups, each housing an HDMI connector and a DisplayPort connector, the circuit board 1 can selectively accommodate an HDMI connector, a DisplayPort connector, or even a composite HDMI / DisplayPort connector via a single composite connector contact group 3. This effectively simplifies the required wiring configuration on the circuit board 1, thereby conserving available space and reducing the manufacturing cost of the circuit board 1.

[0025] Please also refer to Figure 2 , is a schematic diagram of the first embodiment of the composite connector contact group of the present application. Figure 2 As shown, the composite connector contact group 3 of the composite circuit layout consists of 23 contacts, which are arranged in a horizontal straight line and do not overlap with each other. In addition, these 23 contacts are installed on the circuit board 1 by surface mount technology (SMT).

[0026] like Figure 2 As shown, these twenty-three contacts are arranged horizontally on the same horizontal plane and have the same length. The widths of the first, fourth, seventh, tenth, twentieth, twenty-first, and twenty-second contacts, starting from the right side of the composite connector contact set 3, are wider than the widths of the other contacts on the composite connector contact set 3. In one embodiment, the widths of the first, fourth, seventh, tenth, twentieth, twenty-first, and twenty-second contacts are twice the widths of the other contacts on the composite connector contact set 3, but this is not limited thereto.

[0027] See further Figure 3 , is a schematic diagram of a composite connector. Figure 3In the embodiment shown, the composite connector contact group 3 is used to connect a composite connector 4. In the present application, one of the twenty-three contacts of the composite connector contact group 3 has a switching pin. The composite connector 4 has a switching terminal (not shown in the figure), which can send a corresponding start-up and closing signal based on whether the internal conduction is on or off. When the composite connector 4 is set on the composite connector contact group 3, the switching pin of the composite connector contact group 3 can be electrically connected to the switching terminal of the composite connector 4 and receive the start-up and closing signal of the composite connector. At this time, the control processing unit 2 can receive the start-up and closing signal from the composite connector contact group 3 through the preset line 11, and determine whether the composite connector 4 is currently set to an HDMI connector type or a DisplayPort connector type based on the start-up and closing signal.

[0028] In one embodiment, the composite connector 4 is an HDMI / DisplayPort composite connector. The composite connector 4 has twenty-three terminals, twenty-two of which are common to both HDMI and DisplayPort signals, and the remaining terminal is the switching terminal. After receiving the on / off signal, the control processing unit 2 can determine whether the composite connector 4 is currently configured as an HDMI connector type (e.g., the switching terminal is short-circuited) or a DisplayPort connector type (e.g., the switching terminal is disconnected) based on the on / off signal (e.g., ON or OFF), and thus decide whether to process the signal transmitted from the composite connector 4 by the composite connector contact group 3 according to the HDMI signal specification or the DisplayPort signal specification.

[0029] In another embodiment, the composite connector contact group 3 is further connected to a control chip. In this embodiment, the control chip receives the on / off signal and determines whether the composite connector 4 is currently configured as an HDMI connector type or a DisplayPort connector type.

[0030] The composite connector contact group 3 in the present application is composed of twenty-three contacts, and these twenty-three contacts completely correspond to the twenty-three terminals of the composite connector 4. Therefore, the circuit board 1 can be set to use the composite connector 4 through the composite connector contact group 3. As mentioned above, twenty-two of the terminals of the composite connector 4 are terminals shared by HDMI signals and DisplayPort signals. In other words, twenty-two of the contacts of the composite connector contact group 3 correspond to the shared pins of HDMI signals and DisplayPort signals. Therefore, in addition to the composite connector 4, the composite connector contact group 3 of the present application can also be used to connect an HDMI connector or a DisplayPort connector. It is worth mentioning that when the composite connector contact group 3 is used to connect an HDMI connector or a DisplayPort connector, the contacts corresponding to the switching pins are not necessarily connected and used.

[0031] See further Figure 4 , is a second embodiment of the schematic diagram of the composite connector contact group of the present application. Figure 4 As shown, the composite connector contact group 3 includes, starting from the right, a first contact 31, a second contact 32, a third contact 33, a fourth contact 34, a fifth contact 35, a sixth contact 36, a seventh contact 37, an eighth contact 38, a ninth contact 39, a tenth contact 310, an eleventh contact 311, a twelfth contact 312, a thirteenth contact 313, a fourteenth contact 314, a fifteenth contact 315, a sixteenth contact 316, a seventeenth contact 317, an eighteenth contact 318, a nineteenth contact 319, a twentieth contact 320, a twenty-first contact 321, a twenty-second contact 322, and a twenty-third contact 323.

[0032] In the present application, the composite connector contact group 3 includes at least a plurality of ground pins, a plurality of differential signal pins (including a plurality of positive signal pins and a plurality of negative signal pins), two power pins, two hot plug detect pins, and a switch pin. As previously described, the switch pin is used to receive the start and stop signals of the composite connector provided on the composite connector contact group 3. This enables the control processing unit 2 to determine whether the composite connector is currently configured as an HDMI connector type or a DisplayPort connector type based on the start and stop signals.

[0033] like Figure 4As shown, the position and signal specification of the first contact 31 correspond to the position and signal specification of the twentieth terminal (H20) of the HDMI connector type and the twenty-first terminal (D21) of the DisplayPort connector type; the position and signal specification of the second contact 32 correspond to the position and signal specification of the first terminal (H1) of the HDMI connector type and the first terminal (D1) of the DisplayPort connector type; the position and signal specification of the third contact 33 correspond to the position and signal specification of the third terminal (H3) of the HDMI connector type and the third terminal (D3) of the DisplayPort connector type; the position and signal specification of the fourth contact 34 corresponds to the position and signal specification of the second terminal (H2) of the HDMI connector type and the second terminal (D2) of the DisplayPort connector type; the position and signal specification of the fifth contact 35 corresponds to the position and signal specification of the fourth terminal (H4) of the HDMI connector type and the fourth terminal (D4) of the DisplayPort connector type. No. specification; the position and signal specification of the sixth contact 36 corresponds to the position and signal specification of the sixth terminal (H6) of the HDMI connector type and the sixth terminal (D6) of the DisplayPort connector type; the position and signal specification of the seventh contact 37 corresponds to the position and signal specification of the fifth terminal (H5) of the HDMI connector type and the fifth terminal (D5) of the DisplayPort connector type; the position and signal specification of the eighth contact 38 corresponds to the position and signal specification of the seventh terminal (H7) of the HDMI connector type and the seventh terminal (D7) of the DisplayPort connector type; the position and signal specification of the ninth contact 39 corresponds to the position and signal specification of the ninth terminal (H9) of the HDMI connector type and the ninth terminal (D9) of the DisplayPort connector type; the position and signal specification of the tenth contact 310 corresponds to the position and signal specification of the eighth terminal (H8) of the HDMI connector type and the eighth terminal (D8) of the DisplayPort connector type.

[0034] like Figure 4As shown, the position and signal specification of the eleventh contact 311 of the composite connector contact group 3 corresponds to the position and signal specification of the tenth terminal (H10) of the HDMI connector type and the tenth terminal (D10) of the DisplayPort connector type; the position and signal specification of the twelfth contact 312 corresponds to the position and signal specification of the twelfth terminal (H12) of the HDMI connector type and the twelfth terminal (D12) of the DisplayPort connector type; the position and signal specification of the thirteenth contact 313 corresponds to the position and signal specification of the eleventh terminal (H11) of the HDMI connector type and the eleventh terminal (D11) of the DisplayPort connector type; the position and signal specification of the fourteenth contact 314 corresponds to the position of the thirteenth terminal (H13) of the HDMI connector type and the thirteenth terminal (D13) of the DisplayPort connector type. and signal specifications; the position and signal specifications of the fifteenth contact 315 correspond to the position and signal specifications of the fourteenth terminal (H14) of the HDMI connector type and the fourteenth terminal (D14) of the DisplayPort connector type; the position and signal specifications of the sixteenth contact 316 correspond to the position and signal specifications of the sixteenth terminal (H16) of the HDMI connector type and the sixteenth terminal (D16) of the DisplayPort connector type; the position and signal specifications of the seventeenth contact 317 correspond to the position and signal specifications of the fifteenth terminal (H15) of the HDMI connector type and the fifteenth terminal (D15) of the DisplayPort connector type; the position and signal specifications of the eighteenth contact 318 correspond to the position and signal specifications of the seventeenth terminal (H17) of the HDMI connector type and the seventeenth terminal (D17) of the DisplayPort connector type.

[0035] like Figure 4 As shown, the position and signal specification of the nineteenth contact 319 of the composite connector contact group 3 corresponds to the position and signal specification of the eighteenth terminal (D18) of the DisplayPort connector type; the position and signal specification of the twentieth contact 320 corresponds to the position and signal specification of the eighteenth terminal (H18) of the HDMI connector type; the position and signal specification of the twenty-first contact 321 corresponds to the position and signal specification of the nineteenth terminal (H19) of the HDMI connector type; the position and signal specification of the twenty-second contact 322 corresponds to the position and signal specification of the twentieth terminal (D20) of the DisplayPort connector type; and the position and signal specification of the twenty-third contact 323 corresponds to the position and signal specification of the nineteenth terminal (D19) of the DisplayPort connector type.

[0036] Specifically, the composite connector 4 has 23 terminals, of which the terminal definitions for the HDMI connector type are shown in Table 1 below. The terminal definitions and signal specifications for the first terminal (H1) through the nineteenth terminal (H19) are identical to those for the nineteen terminals of a standard HDMI connector.

[0037] Table 1 The terminal definitions of the DisplayPort connector type of the composite connector 4 are shown in Table 2 below. The terminal definitions and signal specifications of the first terminal (D1) to the twentieth terminal (D20) are the same as those of the twenty terminals of the standard DisplayPort connector. Terminal number Signal name D1 ML_Lane 0(p) D2 GND D3 ML_Lane 0(n) D4 ML_Lane 1(p) D5 GND D6 ML_Lane 1(n) D7 ML_Lane 2(p) D8 GND D9 ML_Lane 2(N) D10 ML_Lane 3(p) D11 GND D12 ML_Lane 3(n) D13 CONFIG1 D14 CONFIG2 D15 AUX CH(p) D16 GND D17 AUX CH(n) D18 Hot Plug Detect D19 Return D20 DP_PWR D21 Switch

[0038] Table 2 The definitions of the nineteen terminals in the above-mentioned HDMI connector type and the twenty terminals in the DisplayPort connector type are the same as those of the standard HDMI connector and DisplayPort connector, and are not repeated here.

[0039] As shown in Table 1, Table 2 and Figure 4 As shown, the composite connector contact set 3 of the composite circuit layout of the present application includes at least a plurality of ground (GND) pins, a plurality of positive data (D+) pins, a plurality of negative data (D-) pins, two power (PWR) pins, two hot plug detect (Hot Plug Detect) pins, and a switch pin. The plurality of differential signal pins is eight (including four positive signal pins and four negative signal pins), and the plurality of ground pins is four. More specifically, the four positive signal pins of the plurality of differential signal pins include the second contact 32, the fifth contact 35, the eighth contact 38, and the eleventh contact 311, starting from the right side of the composite connector contact set 3. The four negative signal pins of the plurality of differential signal pins include the third contact 33, the sixth contact 36, the ninth contact 39, and the twelfth contact 312, starting from the right side of the composite connector contact set 3. The four ground pins include a fourth contact 34 , a seventh contact 37 , a tenth contact 310 and a thirteenth contact 313 starting from the right side of the composite connector contact set 3 .

[0040] As shown in Table 1, Table 2 and Figure 4As shown, the switching pin is the first contact 31 from the right side of the composite connector contact group 3. The two power pins include the 20th contact 320 and the 22nd contact 322 from the right side of the composite connector contact group 3, wherein the 20th contact 320 corresponds to the power terminal of the HDMI connector, and the 22nd contact 322 corresponds to the power terminal of the DisplayPort connector. The two hot plug detection pins include the 19th contact and the 21st contact from the right side of the composite connector 3, wherein the 19th contact corresponds to the hot plug detection pin of the DisplayPort connector, and the 21st contact corresponds to the hot plug detection pin of the HDMI connector.

[0041] As shown in Table 1 and Table 2, the first contact 31 of the composite connector contact set 3 is a switching pin, the fourth contact 34, the seventh contact 37 and the tenth contact 310 are three ground pins among the plurality of ground pins, the twentieth contact 320 and the twenty-second contact 322 are two power pins, and the twenty-first contact 321 is one of the two hot plug detection pins. Figure 4 As shown, the widths of the first contact 31 , the fourth contact 34 , the seventh contact 37 , the tenth contact 310 , the twentieth contact 320 , the twenty-first contact 321 and the twenty-second contact 322 of the composite connector contact set 3 are wider than those of other contacts on the composite connector contact set 3 .

[0042] In summary, the composite circuit layout of the present application has a composite connector contact group 3, and the multiple pins corresponding to the multiple contacts of the composite connector contact group 3 can simultaneously support an HDMI connector, a DisplayPort connector, and an HDMI / DisplayPort composite connector, thereby simplifying the circuits on the circuit board 1, retaining the available space on the circuit board 1, and reducing the manufacturing cost of the circuit board 1.

Claims

1. A composite circuit layout, disposed on a circuit board and connected to a control processing unit on the circuit board, characterized in that: A composite connector contact group is provided, which is composed of 23 contacts. The 23 contacts are arranged in a horizontal straight line and include at least a plurality of ground pins, a plurality of differential signal pins, two power pins, two hot plug detection pins, and a switch pin. The switch pin receives an on / off signal from a composite connector provided on the composite connector contact group, so that the control processing unit determines whether the composite connector is set as an HDMI connector type or a DisplayPort connector type through the on / off signal.

2. The composite circuit layout according to claim 1, wherein: The number of the plurality of differential signal pins is eight, and the number of the plurality of ground pins is four.

3. The composite circuit layout according to claim 2, wherein: The multiple differential signal pins include four positive signal pins and four negative signal pins. The four positive signal pins include the second contact, the fifth contact, the eighth contact and the eleventh contact from the right side of the composite connector contact group. The four negative signal pins include the third contact, the sixth contact, the ninth contact and the twelfth contact from the right side of the composite connector contact group.

4. The composite circuit layout according to claim 2, wherein: The plurality of ground pins include a fourth contact, a seventh contact, a tenth contact and a thirteenth contact from the right side of the composite connector contact group.

5. The composite circuit layout according to claim 1, wherein: The switch pin is the first contact from the right side of the composite connector contact group.

6. The composite circuit layout according to claim 1, wherein: The two power pins include the 20th contact and the 22nd contact counted from the right side of the composite connector contact group.

7. The composite circuit layout according to claim 1, wherein: The two hot plug detection pins include the 21st contact and the 19th contact from the right side of the composite connector contact group.

8. The composite circuit layout according to claim 1, wherein: The contact widths of the switch pin, three ground pins of the plurality of ground pins, the two power pins and one hot plug detection pin of the two hot plug detection pins are wider than the contact widths of other pins on the composite connector contact set.

9. The composite circuit layout according to claim 1, wherein: The widths of the first contact, the fourth contact, the seventh contact, the tenth contact, the twentieth contact, the twenty-first contact and the twenty-second contact from the right side of the composite connector contact set are wider than the widths of other contacts on the composite connector contact set.

10. The composite circuit layout according to claim 1, wherein: The widths of the first, fourth, seventh, tenth, twentieth, twenty-first and twenty-second contacts from the right side of the composite connector contact set are twice the widths of the other contacts on the composite connector contact set.

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