CN218648257U - Multi-interface switching circuit - Google Patents
Multi-interface switching circuit Download PDFInfo
- Publication number
- CN218648257U CN218648257U CN202222839008.XU CN202222839008U CN218648257U CN 218648257 U CN218648257 U CN 218648257U CN 202222839008 U CN202222839008 U CN 202222839008U CN 218648257 U CN218648257 U CN 218648257U
- Authority
- CN
- China
- Prior art keywords
- interface
- circuit
- led screen
- diode
- driving signal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000003990 capacitor Substances 0.000 claims description 52
- 230000006641 stabilisation Effects 0.000 claims description 29
- 238000011105 stabilization Methods 0.000 claims description 29
- 230000002457 bidirectional effect Effects 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 9
- 230000009286 beneficial effect Effects 0.000 description 1
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D10/00—Energy efficient computing, e.g. low power processors, power management or thermal management
Landscapes
- Electronic Switches (AREA)
Abstract
The utility model discloses a many interfaces switching circuit, include: the input end of the first driving circuit is connected with the LVDS interface of the main control circuit, and the output end of the first driving circuit is connected with the first interface circuit; the input end of the second driving circuit is connected with the MIPI interface of the main control circuit, and the output end of the second driving circuit is connected with the fourth interface circuit; the input end of the third driving circuit is connected with the LVDS interface and the MIPI interface, and the output end of the third driving circuit is connected with the second interface circuit, the third interface circuit and the touch interface circuit; the first interface circuit is connected with the first LED screen; the second interface circuit is connected with the second LED screen; the third interface circuit is connected with a third LED screen; the fourth interface circuit is connected with the fourth LED screen; the touch interface circuit is connected with the first LED screen, the second LED screen, the third LED screen and the fourth LED screen. Through setting up above-mentioned circuit for the LED screen of different grade type can effectual connection by master control circuit has improved LED screen and master control circuit's compatibility.
Description
Technical Field
The utility model relates to an electronic equipment interface technical field especially relates to a many interfaces switching circuit.
Background
The imx core board designed in the market at present is mainly used for connecting an LED screen and a main control circuit, and although the imx core board is provided with a connection MIPI interface and an LVDS interface to be connected with the LED screen for display, the interfaces of the LED screen are different due to different LED screen manufacturers, so that few LED screens capable of being directly connected with the core board are available. Therefore, the main control circuit cannot be effectively connected with the LED screens of different types, and the compatibility of the LED screens and the main control circuit is reduced.
SUMMERY OF THE UTILITY MODEL
In view of the above, it is necessary to provide a multi-interface switching circuit.
A multi-interface switching circuit comprising:
the input end of the first driving circuit is connected with the LVDS interface of the main control circuit, and the output end of the first driving circuit is connected with the first interface circuit and is used for receiving a first driving signal output by the LVDS interface, and outputting the first driving signal to the first interface circuit after voltage stabilization processing is carried out on the first driving signal;
the input end of the second driving circuit is connected with the MIPI interface of the main control circuit, the output end of the second driving circuit is connected with the fourth interface circuit, and the second driving circuit is used for receiving a second driving signal output by the MIPI interface, carrying out voltage stabilization processing on the second driving signal and outputting the second driving signal to the fourth interface circuit;
the input end of the third driving circuit is connected with the LVDS interface and the MIPI interface, and the output end of the third driving circuit is connected with the second interface circuit, the third interface circuit and the touch interface circuit, and the third driving circuit is used for receiving the first driving signal or the second driving signal, performing voltage stabilization processing on the first driving signal or the second driving signal and outputting the first driving signal or the second driving signal to the second interface circuit, the third interface circuit and the touch interface circuit;
the first interface circuit is connected with the first LED screen, and is used for receiving the first driving signal after voltage stabilization and transmitting the first driving signal to the first LED screen so as to light the first LED screen;
the second interface circuit is connected with a second LED screen and used for receiving the first driving signal after voltage stabilization and transmitting the first driving signal to the second LED screen so as to lighten the second LED screen;
the third interface circuit is connected with a third LED screen, and is used for receiving the second driving signal after voltage stabilization and transmitting the second driving signal to the third LED screen so as to light the third LED screen;
the fourth interface circuit is connected with a fourth LED screen, and is used for receiving the second driving signal after voltage stabilization and transmitting the second driving signal to the fourth LED screen so as to light the fourth LED screen;
the touch interface circuit is connected with the first LED screen, the second LED screen, the third LED screen and the fourth LED screen, and is used for receiving the first driving signal or the second driving signal after voltage stabilization and transmitting the first driving signal or the second driving signal to the first LED screen, the second LED screen, the third LED screen and the fourth LED screen so as to control the first LED screen, the second LED screen, the third LED screen and the fourth LED screen.
In one embodiment, the first driving circuit includes: the circuit comprises a first chip, a first inductor, a first diode, a second diode, a first capacitor and a second capacitor;
the power supply end of the first chip is connected with an external power supply, the switch end of the first chip is connected with the anode of the first diode, the cathode of the first diode is connected with the cathode of the second diode and the first interface circuit, the anode of the second diode is connected with the reverse input pin of the first chip, and the reverse input pin of the first chip is connected with the first interface circuit;
one end of the first inductor is connected with the power supply end of the first chip, and the other end of the first inductor is connected with the anode of the first diode;
one end of the first capacitor is connected with the cathode of the second diode, and the other end of the first capacitor is connected with the anode of the second diode;
the second capacitor is connected in parallel with the first capacitor.
In one embodiment, the second driving circuit includes: the second chip, the second inductor and the third diode;
the input end and the turn-off control of the second chip are connected with an external power supply, the switch end of the second chip is connected with the anode of the third diode, and the cathode of the third diode is connected with the fourth interface circuit and grounded; the feedback end of the second chip is connected with the fourth interface circuit;
one end of the second inductor is connected with the input end of the second chip, and the other end of the second inductor is connected with the switch end of the second chip.
In one embodiment, the third driving circuit includes: a third chip, a third capacitor and a fourth capacitor;
the first input end 1 and the second input end of the third chip are both connected with an external power supply; one end of the third capacitor is connected with the first output end and the second output end of the third chip, and the other end of the third capacitor is connected with the third output end of the third chip and grounded;
the fourth capacitor is connected with the third capacitor in parallel;
the clock end of the third chip is connected with the second interface circuit, the third interface circuit and the touch interface circuit; and the bidirectional data end of the third chip is connected with the second interface circuit, the third interface circuit and the touch interface circuit.
In one embodiment, the first interface circuit includes: a first interface;
the second interface circuit includes: a second interface;
the third interface circuit includes: a third interface;
the fourth interface circuit includes: a fourth interface;
the input end of the first interface is connected with the output end of the first driving circuit, and the output end of the first interface is connected with the first LED screen;
the input end of the second interface is connected with the output end of the third driving circuit, and the output end of the second interface is connected with the second LED screen;
the input end of the third interface is connected with the output end of the third driving circuit, and the output end of the third interface is connected with the third LED screen;
the input end of the fourth interface is connected with the output end of the second driving circuit, and the output end of the fourth interface is connected with the fourth LED screen.
In one embodiment, the touch interface circuit includes: the fifth interface, the sixth interface, the fourth diode, the fifth diode, the sixth diode, the seventh diode, the eighth diode and the twelfth diode;
the first pin and the fourth pin of the fifth interface are respectively connected with the first pin and the third pin of the sixth interface;
a first pin of the fifth interface is connected with an anode of the seventh diode, and a cathode of the seventh diode is grounded;
a fourth pin of the fifth interface is connected with an anode of the sixth diode, and a cathode of the sixth diode is grounded;
a fifth pin of the fifth interface is connected with an anode of the fifth diode, and a cathode of the fifth diode is grounded;
a sixth pin of the fifth interface is connected with an anode of the fourth diode, and a cathode of the fourth diode is grounded;
a fourth pin of the sixth interface is connected with an anode of the eighth diode, and a cathode of the eighth diode is grounded;
the fifth pin of the sixth interface is connected to the anode of the twelfth pole tube, and the cathode of the twelfth pole tube is grounded.
In one embodiment, the first driving circuit further comprises: a first resistor, a second resistor and a third resistor;
one end of the first resistor is connected with the enabling end of the first chip, and the other end of the first resistor is connected with the power supply end of the first chip and grounded;
the second resistor and the third resistor are both connected in parallel with the first resistor.
In one embodiment, the first driving circuit further comprises: a fourth resistor, a fifth resistor and a sixth resistor;
one end of the fourth resistor is connected with the reverse input pin of the first chip, and the other end of the fourth resistor is connected with the first interface circuit; one end of the fifth resistor is grounded, and the other end of the fifth resistor is connected with the first interface circuit; the sixth resistor is connected in parallel with the fifth resistor.
In one embodiment, the second driving circuit further comprises: a fifth capacitor and a sixth capacitor;
one end of the fifth capacitor is connected with the external power supply, and the other end of the fifth capacitor is grounded;
the sixth capacitor is connected in parallel with the fifth capacitor.
In one embodiment, the second driving circuit further comprises: a seventh resistor and an eighth resistor;
one end of the seventh resistor is connected with the grounding end of the second chip, and the other end of the seventh resistor is connected with the feedback end of the second chip; the eighth resistor is connected in parallel with the seventh resistor.
Implement the embodiment of the utility model provides a, will have following beneficial effect:
the first driving circuit, the second driving circuit and the third driving circuit are arranged to transmit a first driving signal and a second driving signal to an LVDS interface and an MIPI interface of a main control circuit, and then the first driving circuit, the second driving circuit and the third driving circuit transmit the first driving signal and the second driving signal to the first interface circuit, the second interface circuit, the third interface circuit, the fourth interface circuit and the touch interface circuit after voltage stabilization processing, so that the first driving signal and the second driving signal after voltage stabilization are transmitted to the first LED screen, the second LED screen, the third LED screen and the fourth LED screen by the first interface circuit, the second interface circuit, the third interface circuit, the fourth interface circuit and the touch interface circuit, and the first driving signal, the second driving signal and the second driving signal are lightened or controlled; the main control circuit can be effectively connected with the LED screens of different types, and the compatibility of the LED screens and the main control circuit is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Wherein:
FIG. 1 is a block diagram of a multi-interface switching circuit according to one embodiment;
FIG. 2 is a circuit diagram of a first driver circuit in one embodiment;
FIG. 3 is a circuit diagram of a second driver circuit in one embodiment;
FIG. 4 is a circuit diagram of a third driver circuit in one embodiment;
FIG. 5 is a circuit diagram of a first interface circuit in one embodiment;
FIG. 6 is a circuit diagram of a second interface circuit in one embodiment;
FIG. 7 is a circuit diagram of touch interface circuitry in one embodiment;
FIG. 8 is a circuit diagram of a third interface circuit in one embodiment;
FIG. 9 is a circuit diagram of a fourth interface circuit in one embodiment.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without making creative efforts belong to the protection scope of the present invention.
The imx core board designed in the market at present is mainly used for connecting an LED screen and a main control circuit, and although the imx core board is provided with a connection MIPI interface and an LVDS interface to be connected with the LED screen for display, the interfaces of the LED screen are different due to different LED screen manufacturers, so that few LED screens capable of being directly connected with the core board are available. Therefore, the main control circuit cannot be effectively connected with the LED screens of different types, and the compatibility of the LED screens and the main control circuit is reduced. In order to solve the above technical problem, the present application provides a multi-interface switching circuit, referring to fig. 1, including: a first driver circuit 10, a second driver circuit 20, a third driver circuit 30, a first interface circuit 40, a second interface circuit 50, a third interface circuit 70, a fourth interface circuit 80, and a touch interface circuit 60; wherein,
the input end of the first driving circuit 10 is connected to the LVDS interface of the main control circuit, and the output end is connected to the first interface circuit 40, and is configured to receive a first driving signal output by the LVDS interface, perform voltage stabilization on the first driving signal, and output the first driving signal to the first interface circuit 40;
the input end of the second driving circuit 20 is connected to the MIPI interface of the main control circuit, and the output end is connected to the fourth interface circuit 80, and is configured to receive a second driving signal output by the MIPI interface, and output the second driving signal to the fourth interface circuit 80 after performing voltage stabilization processing on the second driving signal;
the input end of the third driving circuit 30 is connected to the LVDS interface and the MIPI interface, and the output end is connected to the second interface circuit 50, the third interface circuit 70 and the touch interface circuit 60, and is configured to receive the first driving signal or the second driving signal, perform voltage stabilization on the first driving signal or the second driving signal, and output the voltage-stabilized first driving signal or the second driving signal to the second interface circuit 50, the third interface circuit 70 and the touch interface circuit 60;
the first interface circuit 40 is connected to the first LED screen 300, and is configured to receive the first voltage-stabilized driving signal and transmit the first voltage-stabilized driving signal to the first LED screen 300, so that the first LED screen 300 is turned on;
the second interface circuit 50 is connected to the second LED screen 400, and is configured to receive the first driving signal after voltage stabilization, and transmit the first driving signal to the second LED screen 400, so that the second LED screen 400 is turned on;
the third interface circuit 70 is connected to the third LED screen 500, and is configured to receive the second driving signal after voltage stabilization, and transmit the second driving signal to the third LED screen 500, so that the third LED screen 500 is turned on;
the fourth interface circuit 80 is connected to the fourth LED screen 600, and is configured to receive the second voltage-stabilized driving signal and transmit the second voltage-stabilized driving signal to the fourth LED screen 600, so that the fourth LED screen 600 is turned on;
the touch interface circuit 60 is connected to the first LED screen 300, the second LED screen 400, the third LED screen 500, and the fourth LED screen 600, and configured to receive the first driving signal or the second driving signal after voltage stabilization, and transmit the first driving signal or the second driving signal to the first LED screen 300, the second LED screen 400, the third LED screen 500, and the fourth LED screen 600, so as to control the first LED screen 300, the second LED screen 400, the third LED screen 500, and the fourth LED screen 600. The first driving circuit, the second driving circuit and the third driving circuit are arranged to transmit a first driving signal and a second driving signal to an LVDS interface and an MIPI interface of a main control circuit, and then the first driving circuit, the second driving circuit and the third driving circuit transmit the first driving signal and the second driving signal to the first interface circuit, the second interface circuit, the third interface circuit, the fourth interface circuit and the touch interface circuit after voltage stabilization processing, so that the first driving signal and the second driving signal after voltage stabilization are transmitted to the first LED screen, the second LED screen, the third LED screen and the fourth LED screen by the first interface circuit, the second interface circuit, the third interface circuit, the fourth interface circuit and the touch interface circuit, and the first driving signal, the second driving signal and the second driving signal are lightened or controlled; the main control circuit can be effectively connected with the LED screens of different types, and the compatibility of the LED screens and the main control circuit is improved.
On the basis of the above embodiment, as shown in fig. 2, the first driving circuit 10 includes: the circuit comprises a first chip U6, a first inductor L3, a first diode D9, a second diode D10, a first capacitor C31 and a second capacitor C32; a power supply terminal VCC of the first chip U6 is connected to an external power supply, a switch terminal SWC of the first chip U6 is connected to an anode of the first diode D9, a cathode of the first diode D9 is connected to a cathode of the second diode D10 and the first interface circuit 40, an anode of the second diode D10 is connected to a reverse input pin COMP of the first chip U6, and the reverse input pin COMP of the first chip U6 is connected to the first interface circuit 40; one end of the first inductor L3 is connected to a power supply terminal VCC of the first chip U6, and the other end is connected to an anode of the first diode D9; one end of the first capacitor C31 is connected to the cathode of the second diode D10, and the other end is connected to the anode of the second diode D10; the second capacitor C32 is connected in parallel with the first capacitor C31.
As shown in fig. 3, the second driving circuit 20 includes: the circuit comprises a second chip U1, a second inductor L1 and a third diode D1; the input end VIN and the turn-off control SHND of the second chip U1 are connected to an external power supply, the switch end SW of the second chip U1 is connected to the anode of the third diode D1, and the cathode of the third diode D1 is connected to the fourth interface circuit 80 and grounded; the feedback terminal FB of the second chip U1 is connected to the fourth interface circuit 80; one end of the second inductor L1 is connected to the input end VIN of the second chip U1, and the other end is connected to the switch end SW of the second chip U1.
As shown in fig. 4, the third driving circuit 30 includes: a third chip U7, a third capacitor C42 and a fourth capacitor C51; the first input end 1 and the second input end 2 of the third chip U7 are both connected with an external power supply; one end of the third capacitor C42 is connected to the first output end 23 and the second output end 24 of the third chip U7, and the other end is connected to the third output end 22 of the third chip U7 and grounded; the fourth capacitor C5 is connected in parallel with the third capacitor C42; the clock terminal SCL of the third chip U7 is connected to the second interface circuit 50, the third interface circuit 70 and the touch interface circuit 60; the bidirectional data terminal SDA of the third chip U7 is connected to the second interface circuit 50, the third interface circuit 70 and the touch interface circuit 60.
As shown in fig. 5, 6, 8, and 9, the first interface circuit 40 includes: a first interface J2; the second interface circuit 50 includes: a second interface J6; the third interface circuit 70 includes: a third interface J5; the fourth interface circuit 80 includes: a fourth interface J1; the input end of the first interface J2 is connected to the output end of the first driving circuit 10, and the output end is connected to the first LED screen 300; the input end of the second interface J6 is connected to the output end of the third driving circuit 30, and the output end is connected to the second LED screen 400; the input end of the third interface J5 is connected to the output end of the third driving circuit 30, and the output end is connected to the third LED screen 500; the input end of the fourth interface J1 is connected to the output end of the second driving circuit 20, and the output end is connected to the fourth LED screen 600.
As shown in fig. 7, the touch interface circuit 60 includes: a fifth interface J3, a sixth interface J11, a fourth diode D5, a fifth diode D6, a sixth diode D7, a seventh diode D8, an eighth diode D8, and a twelfth diode D9; the first pin 1 and the fourth pin 4 of the fifth interface J3 are respectively connected with the first pin 1 and the third pin 3 of the sixth interface J11; the first pin 1 of the fifth interface J3 is connected to the anode of the seventh diode D8, and the cathode of the seventh diode D8 is grounded; the fourth pin 4 of the fifth interface J3 is connected to the anode of the sixth diode D7, and the cathode of the sixth diode D7 is grounded; a fifth pin 5 of the fifth interface J3 is connected to an anode of the fifth diode D6, and a cathode of the fifth diode D6 is grounded; a sixth pin 6 of the fifth interface J3 is connected to an anode of the fourth diode D5, and a cathode of the fourth diode D5 is grounded; the fourth pin 4 of the sixth interface J11 is connected to the anode of the eighth diode D8, and the cathode of the eighth diode D8 is grounded; the fifth pin 5 of the sixth interface J11 is connected to the anode of the twelfth diode D9, and the cathode of the twelfth diode D9 is grounded.
In one embodiment, as shown in fig. 2, the first driving circuit 10 further includes: a first resistor R30, a second resistor R31, and a third resistor R32; one end of the first resistor R30 is connected to the enable end EN of the first chip U6, and the other end is connected to the power supply end VCC of the first chip U6 and grounded; the second resistor R31 and the third resistor R32 are both connected in parallel with the first resistor R30.
In one embodiment, as shown in fig. 2, the first driving circuit 10 further includes: a fourth resistor R35, a fifth resistor R36, and a sixth resistor R37; one end of the fourth resistor R35 is connected to the reverse input pin COMP of the first chip U6, and the other end is connected to the first interface circuit 40; one end of the fifth resistor R36 is grounded, and the other end is connected to the first interface circuit 40; the sixth resistor R37 is connected in parallel with the fifth resistor R36.
In one embodiment, as shown in fig. 3, the second driving circuit 20 further includes: a fifth capacitor C2 and a sixth capacitor C3; one end of the fifth capacitor C2 is connected with the external power supply, and the other end of the fifth capacitor C2 is grounded; the sixth capacitor C3 is connected in parallel with the fifth capacitor C2.
In one embodiment, as shown in fig. 3, the second driving circuit 20 further includes: a seventh resistor R6 and an eighth resistor R7; one end of the seventh resistor R6 is connected to the ground GND of the second chip U1, and the other end of the seventh resistor R6 is connected to the feedback terminal FB of the second chip U1; the eighth resistor R7 is connected in parallel with the seventh resistor R6.
The working principle of the application is as follows:
the first chip U6 receives a first driving signal output by the LVDS interface of the main control circuit, and outputs the first driving signal to the first interface J2 after performing voltage stabilization processing on the first driving signal, and the second chip U1 receives a second driving signal output by the MIPI interface of the main control circuit, and outputs the second driving signal to the fourth interface J1 after performing voltage stabilization processing on the second driving signal; the third chip U7 receives the first driving signal or the second driving signal respectively output by the LVDS interface of the main control circuit and the MIPI interface, and outputs the first driving signal or the second driving signal to the second interface J6, the third interface J5, and the fifth interface J3 after performing voltage stabilization processing on the first driving signal or the second driving signal; the first interface J2 is connected with the first LED screen 300; the second interface J6 is connected with the second LED screen 400, and the third interface J5 is connected with the third LED screen 500; the fourth interface J1 is connected to the fourth LED screen 600, so that the first LED screen, the second LED screen, the third LED screen, and the fourth LED screen are lit or controlled.
The above disclosure is only for the purpose of illustrating the preferred embodiments of the present invention and should not be construed as limiting the scope of the present invention, therefore, all equivalent variations of the present invention are intended to be covered by the present invention.
Claims (10)
1. A multi-interface switching circuit, comprising:
the input end of the first driving circuit is connected with the LVDS interface of the main control circuit, and the output end of the first driving circuit is connected with the first interface circuit and is used for receiving a first driving signal output by the LVDS interface, and outputting the first driving signal to the first interface circuit after voltage stabilization processing is carried out on the first driving signal;
the input end of the second driving circuit is connected with the MIPI interface of the main control circuit, the output end of the second driving circuit is connected with the fourth interface circuit, and the second driving circuit is used for receiving a second driving signal output by the MIPI interface, carrying out voltage stabilization processing on the second driving signal and outputting the second driving signal to the fourth interface circuit;
the input end of the third driving circuit is connected with the LVDS interface and the MIPI interface, and the output end of the third driving circuit is connected with the second interface circuit, the third interface circuit and the touch interface circuit, and the third driving circuit is used for receiving the first driving signal or the second driving signal, performing voltage stabilization processing on the first driving signal or the second driving signal and outputting the first driving signal or the second driving signal to the second interface circuit, the third interface circuit and the touch interface circuit;
the first interface circuit is connected with the first LED screen, and is used for receiving the first driving signal after voltage stabilization and transmitting the first driving signal to the first LED screen so as to light the first LED screen;
the second interface circuit is connected with a second LED screen and used for receiving the first driving signal after voltage stabilization and transmitting the first driving signal to the second LED screen so as to lighten the second LED screen;
the third interface circuit is connected with a third LED screen, and is used for receiving the second driving signal after voltage stabilization and transmitting the second driving signal to the third LED screen so as to light the third LED screen;
the fourth interface circuit is connected with a fourth LED screen, and is used for receiving the second driving signal after voltage stabilization and transmitting the second driving signal to the fourth LED screen so as to light the fourth LED screen;
the touch interface circuit is connected with the first LED screen, the second LED screen, the third LED screen and the fourth LED screen, and is used for receiving the first driving signal or the second driving signal after voltage stabilization and transmitting the first driving signal or the second driving signal to the first LED screen, the second LED screen, the third LED screen and the fourth LED screen so as to control the first LED screen, the second LED screen, the third LED screen and the fourth LED screen.
2. The multi-interface switching circuit of claim 1,
the first drive circuit includes: the circuit comprises a first chip, a first inductor, a first diode, a second diode, a first capacitor and a second capacitor;
the power supply end of the first chip is connected to an external power supply, the switch end of the first chip is connected with the anode of the first diode, the cathode of the first diode is connected with the cathode of the second diode and the first interface circuit, the anode of the second diode is connected with the reverse input pin of the first chip, and the reverse input pin of the first chip is connected with the first interface circuit;
one end of the first inductor is connected with the power supply end of the first chip, and the other end of the first inductor is connected with the anode of the first diode;
one end of the first capacitor is connected with the cathode of the second diode, and the other end of the first capacitor is connected with the anode of the second diode;
the second capacitor is connected in parallel with the first capacitor.
3. The multi-interface switching circuit of claim 1,
the second drive circuit includes: the second chip, the second inductor and the third diode;
the input end and the turn-off control of the second chip are connected with an external power supply, the switch end of the second chip is connected with the anode of the third diode, and the cathode of the third diode is connected with the fourth interface circuit and grounded; the feedback end of the second chip is connected with the fourth interface circuit;
one end of the second inductor is connected with the input end of the second chip, and the other end of the second inductor is connected with the switch end of the second chip.
4. The multi-interface switching circuit of claim 1,
the third drive circuit includes: a third chip, a third capacitor and a fourth capacitor;
the first input end 1 and the second input end of the third chip are both connected with an external power supply; one end of the third capacitor is connected with the first output end and the second output end of the third chip, and the other end of the third capacitor is connected with the third output end of the third chip and grounded;
the fourth capacitor is connected with the third capacitor in parallel;
the clock end of the third chip is connected with the second interface circuit, the third interface circuit and the touch interface circuit; and the bidirectional data end of the third chip is connected with the second interface circuit, the third interface circuit and the touch interface circuit.
5. The multi-interface switching circuit of claim 1,
the first interface circuit includes: a first interface;
the second interface circuit includes: a second interface;
the third interface circuit includes: a third interface;
the fourth interface circuit includes: a fourth interface;
the input end of the first interface is connected with the output end of the first driving circuit, and the output end of the first interface is connected with the first LED screen;
the input end of the second interface is connected with the output end of the third driving circuit, and the output end of the second interface is connected with the second LED screen;
the input end of the third interface is connected with the output end of the third driving circuit, and the output end of the third interface is connected with the third LED screen;
the input end of the fourth interface is connected with the output end of the second driving circuit, and the output end of the fourth interface is connected with the fourth LED screen.
6. The multi-interface switching circuit of claim 1,
the touch interface circuit includes: the fifth interface, the sixth interface, the fourth diode, the fifth diode, the sixth diode, the seventh diode, the eighth diode and the twelfth diode;
the first pin and the fourth pin of the fifth interface are respectively connected with the first pin and the third pin of the sixth interface;
a first pin of the fifth interface is connected with an anode of the seventh diode, and a cathode of the seventh diode is grounded;
a fourth pin of the fifth interface is connected with an anode of the sixth diode, and a cathode of the sixth diode is grounded;
a fifth pin of the fifth interface is connected with an anode of the fifth diode, and a cathode of the fifth diode is grounded;
a sixth pin of the fifth interface is connected with an anode of the fourth diode, and a cathode of the fourth diode is grounded;
a fourth pin of the sixth interface is connected with an anode of the eighth diode, and a cathode of the eighth diode is grounded;
the fifth pin of the sixth interface is connected to the anode of the twelfth pole tube, and the cathode of the twelfth pole tube is grounded.
7. The multi-interface switching circuit of claim 2, wherein the first driver circuit further comprises: a first resistor, a second resistor and a third resistor;
one end of the first resistor is connected with the enabling end of the first chip, and the other end of the first resistor is connected with the power supply end of the first chip and grounded;
the second resistor and the third resistor are both connected in parallel with the first resistor.
8. The multi-interface switching circuit of claim 2, wherein the first driver circuit further comprises: a fourth resistor, a fifth resistor and a sixth resistor;
one end of the fourth resistor is connected with the reverse input pin of the first chip, and the other end of the fourth resistor is connected with the first interface circuit; one end of the fifth resistor is grounded, and the other end of the fifth resistor is connected with the first interface circuit; the sixth resistor is connected in parallel with the fifth resistor.
9. The multi-interface switching circuit of claim 3, wherein the second driver circuit further comprises: a fifth capacitor and a sixth capacitor;
one end of the fifth capacitor is connected with the external power supply, and the other end of the fifth capacitor is grounded;
the sixth capacitor is connected in parallel with the fifth capacitor.
10. The multi-interface switching circuit of claim 3, wherein the second driver circuit further comprises: a seventh resistor and an eighth resistor;
one end of the seventh resistor is connected with the grounding end of the second chip, and the other end of the seventh resistor is connected with the feedback end of the second chip; the eighth resistor is connected in parallel with the seventh resistor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222839008.XU CN218648257U (en) | 2022-10-26 | 2022-10-26 | Multi-interface switching circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222839008.XU CN218648257U (en) | 2022-10-26 | 2022-10-26 | Multi-interface switching circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218648257U true CN218648257U (en) | 2023-03-17 |
Family
ID=85495691
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222839008.XU Active CN218648257U (en) | 2022-10-26 | 2022-10-26 | Multi-interface switching circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218648257U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117075835A (en) * | 2023-10-12 | 2023-11-17 | 荣耀终端有限公司 | Display device, display method, electronic equipment and storage medium |
-
2022
- 2022-10-26 CN CN202222839008.XU patent/CN218648257U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117075835A (en) * | 2023-10-12 | 2023-11-17 | 荣耀终端有限公司 | Display device, display method, electronic equipment and storage medium |
| CN117075835B (en) * | 2023-10-12 | 2024-03-26 | 荣耀终端有限公司 | Display device, display method, electronic equipment and storage medium |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111090605B (en) | USB-to-UART circuit for MCU software upgrade | |
| CN218648257U (en) | Multi-interface switching circuit | |
| CN202150247U (en) | Power supply control circuit and liquid crystal display device | |
| CN210721443U (en) | Data interface switching circuit and device | |
| CN202887106U (en) | Novel multifunctional computer keyboard | |
| CN210431637U (en) | Device for realizing double-screen different display function | |
| CN201583940U (en) | Device for indicating running state of network and network terminal | |
| CN201188217Y (en) | Computer host | |
| CN206805993U (en) | The recording instrument without paper shown with backlight drive | |
| US7170520B2 (en) | Display for sharing display data channel | |
| CN110083100A (en) | A kind of SCM Based electronic timer | |
| CN210515231U (en) | Two-in-one converter | |
| CN211606889U (en) | Overvoltage protection circuit, constant current drive circuit, drive integrated circuit board and electronic equipment | |
| CN210722413U (en) | Point screen device of MIPI interface secondary screen | |
| CN204231406U (en) | A kind of Multifunction cross of the quick-setting based on toggle switch is changed planes | |
| CN210534558U (en) | Multifunctional development board | |
| CN216956932U (en) | EDP changes LVDS signal conversion circuit | |
| CN105513470A (en) | Multifunctional one-chip microcomputer learning board | |
| CN220474318U (en) | Bluetooth digital display screen | |
| CN213367755U (en) | RS232 signal isolation passive converter | |
| CN203675084U (en) | Converter for USB light conversion electrical interface | |
| CN209880109U (en) | Circuit structure capable of rapidly displaying information of display screen equipment and display screen | |
| CN215450162U (en) | Optical module program downloading device for 5G communication | |
| CN217240794U (en) | Circuit supporting conversion from HDMI signal to MIPI output signal | |
| CN203933868U (en) | Multiplexed signals line is realized the module TV of system communication |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |