CN115940322B - Switching circuit of re-timer device and electronic equipment - Google Patents
Switching circuit of re-timer device and electronic equipment Download PDFInfo
- Publication number
- CN115940322B CN115940322B CN202211370284.4A CN202211370284A CN115940322B CN 115940322 B CN115940322 B CN 115940322B CN 202211370284 A CN202211370284 A CN 202211370284A CN 115940322 B CN115940322 B CN 115940322B
- Authority
- CN
- China
- Prior art keywords
- power supply
- switching
- retimer
- circuit
- hdmi
- 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
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
- Power Sources (AREA)
Abstract
The application provides a switching circuit of a Ret timer device and electronic equipment, comprising: a Ret timer device, an HDM I connector, a switching loop, and a voltage dividing loop; the output end of the HDM I connector is electrically connected with the control end of the switch loop through the voltage division loop, the input end of the voltage division loop and the input end of the switch loop are used for being connected with a power supply, the output end of the switch loop is electrically connected with the power supply end of the Ret timer device, the input end of the Ret timer device is used for being connected with a graphic display output display unit, the output end of the Ret timer device is connected with the input end of the HDM I connector, and the output end of the HDM I connector is used for being connected with HDM I display equipment; the voltage division loop is configured to enable the switch loop to be turned off when the HDMI display device is moved out of the HDMI connector, so that the Ret timer device is disconnected from the power supply, and the problem that the existing Ret timer function device is always in a power consumption state when the HDMI display device is not connected is solved.
Description
Technical Field
The present application relates to the field of electronic power, and in particular, to a switching circuit of a re device and an electronic apparatus.
Background
For multi-link HDMI display design or design application scenarios in which an excessive wiring on a PCB is required, or an adapter board is added, or an HDMI authentication test is required, a retimer function device or a level shift device with retimer (level shift) is usually required to be added for signal correction, repair and restoration, and in the prior art, when no HDMI display device is accessed, the retimer function device or the level shift device with retimer (level shift) is still normally powered, and power consumption can be continuously consumed.
If the HDMI mentioned above is used as a hot pluggable display device, if no HDMI display device is connected, a retimer function device or a level shift device (level shift) with retimer is added in the system design, if no special processing is performed, the HDMI will be in a power on power supply state or some working modes with lower power consumption all the time, and power consumption will still be continuously consumed, and the battery endurance time will be affected little, so that the whole system or product cannot pass the authentication and pass of the corresponding energy consumption regulation.
In view of this, the present application has been proposed.
Disclosure of Invention
The application discloses a switching circuit of a re-timer device and electronic equipment, and aims to solve the problem that the existing re-timer function device is always in a power consumption state when HDMI display equipment is not accessed.
A first embodiment of the present application provides a switching circuit of a re device, including: a Retimer device, an HDMI connector, a switching loop, and a voltage dividing loop;
the output end of the HDMI connector is electrically connected with the control end of the switch loop through the voltage division loop, the input end of the voltage division loop and the input end of the switch loop are used for being connected with a power supply, the output end of the switch loop is electrically connected with the power supply end of the Retimer device, the input end of the Retimer device is used for being connected with a graphic display output display unit, the output end of the Retimer device is connected with the input end of the HDMI connector, and the output end of the HDMI connector is used for being connected with HDMI display equipment;
wherein the voltage dividing circuit is configured to enable the switching circuit to be turned off when the HDMI display device is removed from the HDMI connector, so that the Retimer device is disconnected from the power supply.
Preferably, the voltage division loop is further configured to conduct the switching loop when the HDMI display device is connected, so that the power supply supplies power to the Retimer device.
Preferably, the switching circuit is configured to switch between an on state and an off state based on a voltage value output by the voltage dividing circuit;
when in the conducting state, the electric connection between the power supply and the Retimer device is connected;
and in the off state, the electrical connection between the power supply and the Retimer device is disconnected.
Preferably, the voltage dividing circuit comprises a first resistor and a second resistor;
the first end of the first resistor is used for being connected with a power supply, the second end of the first resistor is grounded through the second resistor, the second end of the first resistor is electrically connected with the hot plug signal end of the HDMI connector, and the second end of the first resistor is electrically connected with the control end of the switch loop.
Preferably, the switching circuit includes a first switching unit, and a second switching unit;
the voltage divider comprises a voltage divider circuit, a first switching unit, a second switching unit, a power supply, a first power supply end of a re-timer device, a second power supply end of the re-timer device, a voltage divider circuit, a first switching unit, a second switching unit, a voltage divider circuit and a voltage divider circuit, wherein the enabling end of the first switching unit and the enabling end of the second switching unit are electrically connected with the voltage divider circuit, the input end of the first switching unit and the input end of the second switching unit are electrically connected with the power supply, the output end of the first switching unit is electrically connected with the first power supply end of the re-timer device, and the output end of the second switching unit is electrically connected with the second power supply end of the re-timer device.
Preferably, the Retimer device is configured to perform equalization and enhancement processing on the video and audio signals output by the graphic display output display unit, so as to implement correction and repair on the video and audio signals.
The second embodiment of the application provides an electronic device, which is characterized by comprising a power supply, a graphic display output display unit and a switching circuit of a re-timer device, wherein the power supply is electrically connected with a power supply end of the re-timer device through the switching circuit, and the graphic display output display unit is electrically connected with the HDMI connector through the re-timer device.
The application provides a switching circuit of a re-timer device and electronic equipment, wherein the re-timer device is configured between an HDMI connector and a graphic display output display unit, a power supply provides power for the re-timer device through a switch loop, wherein the voltage value from the voltage dividing circuit to the switch loop can be changed by inserting and extracting the HDMI display device, and when the HDMI display device moves out from the HDMI connector, the switch loop can be turned off so that the connection between the re-timer device and the power supply is disconnected, and the problem that the existing re-timer function device is always in a power consumption state when the HDMI display device is not accessed is solved.
Drawings
Fig. 1 is a switching circuit of a re device according to a first embodiment of the present application.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present application more apparent, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, based on the embodiments of the application, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the application. Thus, the following detailed description of the embodiments of the application, as presented in the figures, is not intended to limit the scope of the application, as claimed, but is merely representative of selected embodiments of the application. All other embodiments, based on the embodiments of the application, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the application.
Specific embodiments of the present application will be described in detail below with reference to the accompanying drawings.
The application discloses a switching circuit of a re-timer device and electronic equipment, and aims to solve the problem that the existing re-timer function device is always in a power consumption state when HDMI display equipment is not accessed.
Referring to fig. 1, a first embodiment of the present application provides a switching circuit of a Retimer device, including: a remamer device 4, an HDMI connector 5, a switching loop 3, and a voltage dividing loop 1;
the output end of the HDMI connector 5 is electrically connected with the control end of the switch circuit 3 through the voltage division circuit 1, the input end of the voltage division circuit 1 and the input end of the switch circuit 3 are used for being connected with a power supply, the output end of the switch circuit 3 is electrically connected with the power supply end of the Retimer device 4, the input end of the Retimer device 4 is used for being connected with the graphic display output display unit 2, the output end of the Retimer device 4 is connected with the input end of the HDMI connector 5, the output end of the HDMI connector 5 is used for being connected with HDMI display equipment, wherein the HDMI connector 5 can be used for being connected with an external HDMI display through a whole machine or a system in various shapes and sizes;
wherein the voltage dividing circuit 1 is configured to enable to turn off the switching circuit 3 when the HDMI display device is removed from the HDMI connector 5, so that the re-timer device 4 is disconnected from the power supply.
The voltage dividing circuit 1 is further configured to conduct the switching circuit 3 when the HDMI display device is connected, so that the power supply supplies power to the Retimer device 4.
The inventors found that: when the signal reaches the receiving end (HDMI display device) after too long or too many loss transmission paths, the signal quality is severely distorted, and in the prior art, the re-timer device 4 is generally connected in series in the signal propagation link path to correct the problem of distortion, however, the re-timer device 4 connected in series in the signal propagation link path is still in a power consumption state after the HDMI display device is removed or the HDMI display device is powered off.
In this embodiment, the repeater device 4 is disposed between the HDMI connector 5 and the graphic display output display unit 2, and is capable of performing equalization and enhancement processing on the video and audio signals output by the graphic display output display unit 2, so as to implement correction and repair of the video and audio signals, and indirectly outputs the video and audio signals to the HDMI connector 5 and then to an external HDMI display device.
Wherein the power supply provides power to the Retimer device 4 through the switching loop 3, further, in the present embodiment, the switching loop 3 is configured to switch between an on state and an off state based on the voltage value output by the voltage dividing loop 1; when in the conducting state, the electric connection between the power supply and the Retimer device 4 is connected; and in the disconnection state, the electrical connection between the power supply and the Retimer device 4 is disconnected, so that the problem that the existing Retimer function device is always in a power consumption state when the HDMI display device is not accessed is solved.
In one possible embodiment of the application, the switching circuit 3 comprises a first switching unit 31, and a second switching unit 32;
the enabling end of the first switch unit 31 and the enabling end of the second switch unit 32 are electrically connected with the voltage dividing circuit, the input end of the first switch unit 31 and the input end of the second switch unit 32 are electrically connected with the power supply, the output end of the first switch unit 31 is electrically connected with the first power supply end of the Retimer device 4, and the output end of the second switch unit 32 is electrically connected with the second power supply end of the Retimer device 4.
It should be noted that, the first switching unit 31 is configured to provide vcc_1p2v to the Retimer device 4, where Pin4 (Power enable) of the first switching unit 31 is turned on for an input level, that is, input and output are shorted, and normally provide the voltage of vcc_1p2v to the Retimer device 4, otherwise, if Pin4 is at a low level, input and output are turned off, and Power supply of vcc_1p2v provided by the Retimer device 4 is cut off.
The second switching unit 32 is configured to provide vcc_3p3v to the Retimer device 4, where Pin4 (Power enable) of the second switching unit 32 is turned on for an input level, that is, input and output are shorted, and normally provide a voltage of vcc_3p3v to the Retimer device 4, otherwise if Pin4 is low, input and output are turned off, and Power supply of vcc_3p3v provided by the Retimer device 4 is cut off.
In one possible embodiment of the present application, the voltage dividing circuit includes a first resistor RD1 and a second resistor RD2;
the first end of the first resistor RD1 is used for being connected with a power supply, the second end of the first resistor RD1 is grounded through the second resistor RD2, the second end of the first resistor RD1 is electrically connected with the hot plug signal end of the HDMI connector 5, and the second end of the first resistor RD1 is electrically connected with the control end of the switch loop 3.
The first resistor RD1 and the second resistor RD2 are preset voltage dividing resistors for the network for the hot plug HPD (Hot Plug Detect) signal voltage division of the HDMI connector 5 designed and preset for the whole machine or the system circuit.
The automatic Power off/Power on automatic Power supply principle mechanism of the hot plug of the HDMI display of the application is briefly described as follows:
a) When the HDMI connector 5 is not connected to the HDMI display output device, +vcc_hpd= +vcc_03×rd2/(rd1+rd2), and the component value is set to rd2=1/10 Rd1, so as to calculate +vcc_hpd= +vcc_02/11, and ensure that the voltage level value is smaller than the lowest input high-efficient voltage level value of the power supply enabling control signal of the first switch unit 31 and the second switch unit 32, so that the input and output of the first switch unit 31 and the second switch unit 32 are disconnected, and the HDMI re device 4 or the HDMI level conversion function device with the re function is completely powered off and is in a zero-power consumption state.
b) When the HDMI connector 5 has an HDMI display output device connected thereto, +vcc_hpd= +5v, the voltage level value is greater than the lowest input high-effective level voltage value of the power supply enable control signals of the first switch unit 31 and the second switch unit 32, so that the inputs and outputs of the first switch unit 31 and the second switch unit 32 are shorted, the HDMI repeater device 4 or the HDMI level conversion function device with the repeater function automatically resumes power supply normally, and performs equalization and enhancement processing on the video and audio signals at the input end to complete the function of signal correction, restoration and restoration, and outputs the result to the HDMI display device.
A second embodiment of the present application provides an electronic device, which is characterized by comprising a power supply, a graphic display output display unit 2, and a switching circuit of a Retimer device 4 as set forth in any one of the foregoing, wherein the power supply is electrically connected to a power supply terminal of the Retimer device 4 through the switching loop 3, and the graphic display output display unit 2 is electrically connected to the HDMI connector 5 through the Retimer device.
The application provides a switching circuit of a re-timer device and electronic equipment, wherein the re-timer device 4 is configured between an HDMI connector 5 and a graphic display output display unit 2, a power supply supplies power to the re-timer device 4 through a switch loop 3, wherein the voltage value from the voltage dividing circuit to the switch loop 3 can be changed by inserting and extracting the HDMI display device, and when the HDMI display device moves out from the HDMI connector 5, the switch loop 3 can be turned off, so that the re-timer device 4 is disconnected from the power supply, and the problem that the conventional re-timer function device is always in a power consumption state when the HDMI display device is not connected is solved.
The above is only a preferred embodiment of the present application, and the protection scope of the present application is not limited to the above examples, and all technical solutions belonging to the concept of the present application belong to the protection scope of the present application.
Claims (6)
1. A switching circuit for a Retimer device, comprising: a Retimer device, an HDMI connector, a switching loop, and a voltage dividing loop;
the voltage division circuit comprises a first resistor and a second resistor, the output end of the HDMI connector is electrically connected with the control end of the switch circuit through the second end of the first resistor, the first end of the first resistor and the input end of the switch circuit are used for being connected with a power supply, the second end of the first resistor is grounded through the second resistor, the output end of the switch circuit is electrically connected with the power supply end of the Retimer device, the input end of the Retimer device is used for being connected with a graphic display output display unit, the output end of the Retimer device is connected with the input end of the HDMI connector, and the output end of the HDMI connector is used for being connected with HDMI display equipment;
wherein the voltage dividing circuit is configured to enable the switching circuit to be turned off when the HDMI display device is removed from the HDMI connector, so that the Retimer device is disconnected from the power supply.
2. The switching circuit of claim 1, wherein the voltage divider circuit is further configured to turn on the switching circuit when the HDMI display device is turned on, so that the power supply supplies power to the re device.
3. The switching circuit of a re-timer device according to claim 1, wherein the switching loop is configured to switch between an on state and an off state based on a voltage value output by the voltage dividing loop;
when in the conducting state, the electric connection between the power supply and the Retimer device is connected;
and in the off state, the electrical connection between the power supply and the Retimer device is disconnected.
4. A switching circuit of a re-timer device according to claim 1 or 3, characterized in that the switching loop comprises a first switching unit and a second switching unit;
the voltage dividing circuit comprises a voltage dividing circuit, a first switching unit, a second switching unit, a power supply, a first power supply end of a re-timer device, a second power supply end of the re-timer device, an enabling end of the first switching unit, an enabling end of the second switching unit and the voltage dividing circuit, an input end of the first switching unit, an input end of the second switching unit and the power supply, an output end of the first switching unit is electrically connected with the first power supply end of the re-timer device, and an output end of the second switching unit is electrically connected with the second power supply end of the re-timer device.
5. The switching circuit of a Retimer device according to claim 1, wherein the Retimer device is configured to perform equalization and enhancement processing on the video and audio signals output by the graphic display output display unit, so as to implement corrective repair on the video and audio signals.
6. An electronic device, comprising a power supply, a graphic display output display unit, and a switching circuit of a Retimer device according to any one of claims 1 to 5, wherein the power supply is electrically connected to a power supply terminal of the Retimer device through the switching circuit, and the graphic display output display unit is electrically connected to the HDMI connector through the Retimer device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211370284.4A CN115940322B (en) | 2022-11-03 | 2022-11-03 | Switching circuit of re-timer device and electronic equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211370284.4A CN115940322B (en) | 2022-11-03 | 2022-11-03 | Switching circuit of re-timer device and electronic equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115940322A CN115940322A (en) | 2023-04-07 |
| CN115940322B true CN115940322B (en) | 2023-10-20 |
Family
ID=86696650
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211370284.4A Active CN115940322B (en) | 2022-11-03 | 2022-11-03 | Switching circuit of re-timer device and electronic equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115940322B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106776421A (en) * | 2016-11-18 | 2017-05-31 | 郑州云海信息技术有限公司 | A kind of PCIE IOBOX and its hot-plug method with Retimer |
| CN107370978A (en) * | 2017-07-12 | 2017-11-21 | 广州视源电子科技股份有限公司 | Control method and system of HDMI output device and storage medium |
| CN112612736A (en) * | 2020-12-17 | 2021-04-06 | 苏州浪潮智能科技有限公司 | On-site detection method of timer adapter card and server system |
| CN213637977U (en) * | 2020-11-16 | 2021-07-06 | 沈阳火炬北泰数码科技有限责任公司 | HDMI signal distribution system with remote transmission function |
| CN113259614A (en) * | 2021-05-13 | 2021-08-13 | 合肥联宝信息技术有限公司 | HDMI switching circuit and electronic equipment |
-
2022
- 2022-11-03 CN CN202211370284.4A patent/CN115940322B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106776421A (en) * | 2016-11-18 | 2017-05-31 | 郑州云海信息技术有限公司 | A kind of PCIE IOBOX and its hot-plug method with Retimer |
| CN107370978A (en) * | 2017-07-12 | 2017-11-21 | 广州视源电子科技股份有限公司 | Control method and system of HDMI output device and storage medium |
| CN213637977U (en) * | 2020-11-16 | 2021-07-06 | 沈阳火炬北泰数码科技有限责任公司 | HDMI signal distribution system with remote transmission function |
| CN112612736A (en) * | 2020-12-17 | 2021-04-06 | 苏州浪潮智能科技有限公司 | On-site detection method of timer adapter card and server system |
| CN113259614A (en) * | 2021-05-13 | 2021-08-13 | 合肥联宝信息技术有限公司 | HDMI switching circuit and electronic equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115940322A (en) | 2023-04-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103345460B (en) | A kind of communication module for realizing hot plug and terminal | |
| CN101951421B (en) | Expansion use method for cell phone earphone interface | |
| CN101102119A (en) | A charging detection circuit of appliance device and charging detection method | |
| CN103208822A (en) | Universal serial bus (USB) charging control circuit | |
| CN111917163A (en) | Multi-port charging control circuit and method, charging chip and power supply equipment | |
| CN108628787B (en) | Interface control circuit | |
| CN201075704Y (en) | Detection circuit of electrical equipment and mobile phone having the circuit | |
| CN103812147A (en) | Battery charging control system | |
| CN106027012A (en) | Pull-down resistor switching circuit | |
| CN115940322B (en) | Switching circuit of re-timer device and electronic equipment | |
| CN111274177B (en) | OPS computer plug protection device and electronic equipment with same | |
| CN201514450U (en) | Drawer module testing device and drawer module testing system | |
| CN104182315B (en) | A kind of circuit, electronic equipment and its corresponding commissioning device of control debugging function | |
| CN219475810U (en) | Detection circuit and electronic equipment | |
| CN107706977B (en) | Charging current detection method and charging device | |
| CN113156244B (en) | Method and device for testing charging device, electronic device and storage medium | |
| CN217115620U (en) | Power input protection circuit, HDMI receiving device and television complete machine | |
| CN112910041B (en) | Charging circuit of terminal equipment, terminal equipment and terminal system | |
| CN109979408A (en) | Current foldback circuit, method and display equipment | |
| CN109218880A (en) | Earphone charging two-in-one circuit and control method, terminal | |
| WO2021253805A1 (en) | Detection assistance circuit, apparatus, motherboard, and terminal device | |
| CN206991299U (en) | Plug-and-play circuit and hot-swappable more plate industry routers | |
| CN102469190B (en) | Based on complete machine debugging method and the device of mobile communication terminal | |
| CN115237015B (en) | Control circuit, control method and electronic equipment | |
| CN220526325U (en) | Interface detection circuit and terminal equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |