CN114546040A - USB docking station for controlling output power and control method thereof - Google Patents
USB docking station for controlling output power and control method thereof Download PDFInfo
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- CN114546040A CN114546040A CN202111662712.6A CN202111662712A CN114546040A CN 114546040 A CN114546040 A CN 114546040A CN 202111662712 A CN202111662712 A CN 202111662712A CN 114546040 A CN114546040 A CN 114546040A
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- 238000003032 molecular docking Methods 0.000 title claims abstract description 24
- 238000000034 method Methods 0.000 title claims abstract description 10
- 108700025151 PD protocol Proteins 0.000 claims description 6
- 238000012937 correction Methods 0.000 claims description 3
- 230000002159 abnormal effect Effects 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
- G06F1/16—Constructional details or arrangements
- G06F1/1613—Constructional details or arrangements for portable computers
- G06F1/1632—External expansion units, e.g. docking stations
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
- G06F1/26—Power supply means, e.g. regulation thereof
- G06F1/266—Arrangements to supply power to external peripherals either directly from the computer or under computer control, e.g. supply of power through the communication port, computer controlled power-strips
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- 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
Abstract
The invention discloses a USB docking station for controlling output power and a control method thereof, wherein the docking station comprises: the device comprises a USB-C UDP module, a power chip, a PD controller and a change-over switch, wherein the USB-C UDP module is electrically connected with the power chip, the PD controller and the change-over switch, the PD controller is electrically connected with Host equipment, the power chip, the change-over switch and a PD power adapter, and the output end of the power chip is electrically connected with various types of Hub equipment. The invention controls the power consumption requirement of the Hub equipment by detecting the power input and output capacity of the uplink and downlink ports and controlling to close the relevant IC of the Hub equipment or place the IC in a dormant mode through a corresponding control algorithm, thereby avoiding the problem of abnormal work when the power consumption of the expansion port is overlarge; meanwhile, the control is accurate, the use efficiency of the equipment can be improved to the maximum extent, and the resources of the expansion interface are fully utilized.
Description
Technical Field
The invention relates to the technical field of electronic equipment, in particular to a USB docking station for controlling output power and a control method thereof.
Background
A docking station, also called a port replicator, is an external device designed for a notebook computer. By copying or even expanding the port of the notebook computer, the notebook computer can be conveniently connected with a plurality of accessories or external devices (such as a power adapter, a network cable, a mouse, an external keyboard, a printer and an external display) in a one-stop mode.
Existing USB docking stations can provide more expansion ports, but are also prone to malfunction when the expansion ports consume too much power. Therefore, it is desirable to design a docking station capable of monitoring and controlling power consumption.
Disclosure of Invention
In view of the above-mentioned defects of the prior art, the technical problem to be solved by the present invention is to provide a USB docking station for controlling output power and a control method thereof, which solve the problem of abnormal operation when the power consumption of the docking port is too large.
To achieve the above object, the present invention provides a USB docking station for controlling output power, comprising:
the USB-C UDP module is electrically connected with the power chip, the PD controller and the change-over switch, the PD controller is electrically connected with Host equipment, the power chip, the change-over switch and the PD power adapter, and the output end of the power chip is electrically connected with various Hub equipment.
Furthermore, the multi-class Hub device comprises a video converter/MST converter, a USB multi-port converter, an internal USB device, a first USB function chip and a second USB function chip.
Furthermore, the video converter/MST converter, the USB multi-port converter, the internal USB equipment and the second USB function chip are electrically connected with the change-over switch.
Further, the USB multi-port converter is electrically connected with the first USB function chip and the plurality of USB interfaces.
Further, the video converter/MST converter is connected with a plurality of display interfaces.
Furthermore, the change-over switch is also connected with a plurality of USB interfaces.
Furthermore, the first USB function chip and the second USB function chip are connected to the RJ45 interface module, the SD card module, the TF card module, and the audio module.
The invention also provides a control method of the USB docking station for controlling the output power, which comprises the following steps:
the PD controller detects input power P1 required by Host equipment connected with the TpepC uplink port through a USB PD protocol and detects power P2 output by a PD power adapter connected with the TypeC downlink port through the USB PD protocol, and then the PD controller calculates the difference value between power P2 output by the PD power adapter and input power P1 required by the Host equipment through a comparison algorithm: Δ P = P2-P1;
and when the difference value delta P is lower than a preset threshold value TH, controlling the power chip to close one or more devices of the multi-class Hub devices through the PD controller, or putting one or more devices of the multi-class Hub devices into a low-power-consumption standby mode, wherein the multi-class Hub devices comprise a video converter/MST converter, a USB multi-port converter, an internal USB device, a first USB function chip, a second USB function chip and a plurality of USB interfaces connected with the USB multi-port converter.
Further, the principle that the PD controller controls the power chip to turn off one or several devices of the multiple types of Hub devices, or place one or several devices of the multiple types of Hub devices in the low power consumption standby mode is as follows: preferentially closing the USB multi-port converter or closing the USB interfaces connected with the USB multi-port converter, wherein the number N of the closed USB interfaces meets N = (TH-delta P)/K, wherein K is a correction parameter, K is 10, 100 or 1000, the value of K enables the range of N to be within the total number of the USB interfaces, and N is rounded.
Further, the principle that the PD controller controls the power chip to turn off one or several devices of the multiple types of Hub devices, or place one or several devices of the multiple types of Hub devices in the low power consumption standby mode further includes: and when the USB interface is closed and the requirement of saving power supply is not met, the PD controller controls the power supply chip to close the second USB function chip, the internal USB equipment and the video converter/MST converter in sequence.
The invention has the beneficial effects that:
according to the invention, the power input and output capacities of the upstream and downstream ports are detected, and the related IC of the Hub equipment is controlled to be closed or put in a sleep mode through a corresponding control algorithm, so that the power consumption requirement of the Hub equipment is controlled, and the problem of abnormal work when the electric energy consumed by the expansion port is too large is avoided; meanwhile, the control is accurate, the use efficiency of the equipment can be improved to the maximum extent, and the resources of the expansion interface are fully utilized.
The conception, the specific structure and the technical effects of the present invention will be further described with reference to the accompanying drawings to fully understand the objects, the features and the effects of the present invention.
Drawings
Fig. 1 is a schematic block diagram of the present invention.
Detailed Description
As shown in fig. 1, the present invention provides a USB docking station for controlling output power, comprising:
the device comprises a USB-C UDP module, a power chip, a PD controller and a change-over switch, wherein the USB-C UDP module is electrically connected with the power chip, the PD controller and the change-over switch, the PD controller is electrically connected with Host equipment, the power chip, the change-over switch and a PD power adapter, and the output end of the power chip is electrically connected with various Hub equipment.
In this embodiment, the multi-class Hub device includes a video converter/MST converter, a USB multi-port converter, an internal USB device, a first USB functional chip, and a second USB functional chip.
In this embodiment, the video converter/MST converter, the USB multi-port converter, the internal USB device, and the second USB function chip are electrically connected to the transfer switch.
In this embodiment, the USB multi-port converter is electrically connected to the first USB functional chip and the plurality of USB interfaces.
In this embodiment, the video converter/MST converter is connected to a plurality of display interfaces.
In this embodiment, the transfer switch is further connected to a plurality of USB interfaces.
In this embodiment, the first USB functional chip and the second USB functional chip are connected to the RJ45 interface module, the SD card module, the TF card module, and the audio module.
The method for controlling the USB docking station for controlling the output power includes:
the PD controller detects input power P1 required by Host equipment connected with the TpepC uplink port through a USB PD protocol and detects power P2 output by a PD power adapter connected with the TypeC downlink port through the USB PD protocol, and then the PD controller calculates the difference value between power P2 output by the PD power adapter and input power P1 required by the Host equipment through a comparison algorithm: Δ P = P2-P1;
and when the difference value delta P is lower than a preset threshold value TH, controlling the power chip to close one or more devices of the multi-class Hub devices through the PD controller, or putting one or more devices of the multi-class Hub devices into a low-power-consumption standby mode, wherein the multi-class Hub devices comprise a video converter/MST converter, a USB multi-port converter, an internal USB device, a first USB function chip, a second USB function chip and a plurality of USB interfaces connected with the USB multi-port converter.
In this embodiment, the principle that the PD controller controls the power chip to turn off one or several devices of the multiple types of Hub devices, or place one or several devices of the multiple types of Hub devices in the low power consumption standby mode is as follows: preferentially closing the USB multi-port converter or closing the USB interfaces connected with the USB multi-port converter, wherein the number N of the closed USB interfaces meets N = (TH-delta P)/K, wherein K is a correction parameter, K is 10, 100 or 1000, the value of K enables the range of N to be within the total number of the USB interfaces, and N is rounded. Specific examples are given below to illustrate the principle of the PD controller controlling the power chip to turn off one or several of the plurality of types of Hub devices:
example 1: the uplink interface is connected with a 65W notebook computer (representing Host equipment), and the downlink interface is connected with a 100W PD power adapter, so that the multi-class Hub equipment can obtain 100-65=35W power consumption from the PD power adapter, and all IC functions of the multi-class Hub equipment normally work at the moment. The principle of this is: at this time, the power P2 output by the PD power adapter is 100W, the input power P1 required by the Host device is 65W, and the difference between the two is: Δ P = P2-P1=35W, and assuming that the threshold TH is 35W, N = (TH- Δ P)/K = (35-35)/10 =0, i.e., without turning off the Hub device.
Example 2: the uplink interface is connected with a 45W notebook computer (representing Host equipment), the downlink interface is connected with a 65W PD power adapter, so that the multi-class Hub equipment can obtain 65-45=20W power consumption from the PD power adapter, and at the moment, the PD controller closes the 2-way USB A port on the USB multi-port transponder through I2C or GPIO, so that power supply is saved. The principle of this is the same as above: at this time, the power P2 output by the PD power adapter is 65W, the input power P1 required by the Host device is 45W, and the difference between the two is: Δ P = P2-P1=20W, and assuming that the threshold TH is 35W, N = (TH- Δ P)/K = (35-20)/10 =1.5, i.e., 2 USB a ports are closed. Since TH- Δ P =15 at this time, and since the USB multi-port repeater in this embodiment is connected to 3 USB a ports, and since the power level in this example is several tens of watts, K takes 10 and N =1.5 in order to satisfy the above principle, it is rounded to 2, that is, 2 USB a ports are closed.
Claims (10)
1. A USB docking station that controls output power, comprising: the device comprises a USB-C UDP module, a power chip, a PD controller and a change-over switch, wherein the USB-C UDP module is electrically connected with the power chip, the PD controller and the change-over switch, the PD controller is electrically connected with Host equipment, the power chip, the change-over switch and a PD power adapter, and the output end of the power chip is electrically connected with various types of Hub equipment.
2. The USB docking station for controlling output power of claim 1, wherein: the multi-class Hub device comprises a video converter/MST converter, a USB multi-port converter, an internal USB device, a first USB function chip and a second USB function chip.
3. A USB docking station for controlling output power as claimed in claim 2 wherein: the video converter/MST converter, the USB multi-port converter, the internal USB equipment and the second USB function chip are electrically connected with the change-over switch.
4. A USB docking station for controlling output power as claimed in claim 3 wherein: the USB multi-port converter is electrically connected with the first USB function chip and the plurality of USB interfaces.
5. A USB docking station for controlling output power as claimed in claim 2 wherein: the video converter/MST converter is connected with a plurality of display interfaces.
6. The USB docking station for controlling output power of claim 1, wherein: the change-over switch is also connected with a plurality of USB interfaces.
7. A USB docking station for controlling output power as claimed in claim 2 wherein: the first USB function chip and the second USB function chip are connected with the RJ45 interface module, the SD card module, the TF card module and the audio module.
8. A method of controlling a USB docking station that controls output power, comprising:
the PD controller detects input power P1 required by Host equipment connected with the TpepC uplink port through a USB PD protocol and detects power P2 output by a PD power adapter connected with the TypeC downlink port through the USB PD protocol, and then the PD controller calculates the difference value between power P2 output by the PD power adapter and input power P1 required by the Host equipment through a comparison algorithm: Δ P = P2-P1;
and when the difference value delta P is lower than a preset threshold value TH, controlling the power chip to close one or more devices of the multi-class Hub devices through the PD controller, or putting one or more devices of the multi-class Hub devices into a low-power-consumption standby mode, wherein the multi-class Hub devices comprise a video converter/MST converter, a USB multi-port converter, an internal USB device, a first USB function chip, a second USB function chip and a plurality of USB interfaces connected with the USB multi-port converter.
9. A method of controlling a USB docking station that controls output power as recited in claim 8, wherein: the principle that the PD controller controls the power chip to turn off one or several devices of the multiple types of Hub devices, or place one or several devices of the multiple types of Hub devices in the low power consumption standby mode is as follows: preferentially closing the USB multi-port converter or closing the USB interfaces connected with the USB multi-port converter, wherein the number N of the closed USB interfaces meets N = (TH-delta P)/K, wherein K is a correction parameter, K is 10, 100 or 1000, the value of K enables the range of N to be within the total number of the USB interfaces, and N is rounded.
10. A method of controlling an output power USB docking station, as claimed in claim 9, wherein: the principle that the PD controller controls the power chip to turn off one or several devices of the multiple types of Hub devices, or place one or several devices of the multiple types of Hub devices in the low power consumption standby mode further includes: and when the USB interface is closed and the requirement of saving power supply is not met, the PD controller controls the power supply chip to close the second USB function chip, the internal USB equipment and the video converter/MST converter in sequence.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111662712.6A CN114546040A (en) | 2021-12-31 | 2021-12-31 | USB docking station for controlling output power and control method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111662712.6A CN114546040A (en) | 2021-12-31 | 2021-12-31 | USB docking station for controlling output power and control method thereof |
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| CN114546040A true CN114546040A (en) | 2022-05-27 |
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| CN202111662712.6A Pending CN114546040A (en) | 2021-12-31 | 2021-12-31 | USB docking station for controlling output power and control method thereof |
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| CN108170256A (en) * | 2018-02-07 | 2018-06-15 | 安福县海能实业股份有限公司 | A kind of USB-C dynamically distributes power system and its power detecting method |
| CN108701107A (en) * | 2017-05-17 | 2018-10-23 | 华为技术有限公司 | A kind of management method of expansion equipment, terminal device and expansion equipment |
| TW202046062A (en) * | 2019-06-14 | 2020-12-16 | 美商微晶片科技公司 | Usb hub with integrated power and thermal management |
| TW202121109A (en) * | 2019-11-29 | 2021-06-01 | 台灣立訊精密有限公司 | Usb docking station and power-governing method thereof |
-
2021
- 2021-12-31 CN CN202111662712.6A patent/CN114546040A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1383072A (en) * | 2001-04-25 | 2002-12-04 | Lg电子株式会社 | Method for watt-hour control through serial bus |
| CN106155254A (en) * | 2016-06-24 | 2016-11-23 | 联想(北京)有限公司 | The method of power management, electronic equipment and system equipment |
| CN108701107A (en) * | 2017-05-17 | 2018-10-23 | 华为技术有限公司 | A kind of management method of expansion equipment, terminal device and expansion equipment |
| CN108170256A (en) * | 2018-02-07 | 2018-06-15 | 安福县海能实业股份有限公司 | A kind of USB-C dynamically distributes power system and its power detecting method |
| TW202046062A (en) * | 2019-06-14 | 2020-12-16 | 美商微晶片科技公司 | Usb hub with integrated power and thermal management |
| TW202121109A (en) * | 2019-11-29 | 2021-06-01 | 台灣立訊精密有限公司 | Usb docking station and power-governing method thereof |
| US20210165451A1 (en) * | 2019-11-29 | 2021-06-03 | Luxshare-Ict Co., Ltd. | Usb docking station and power-governing method thereof |
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