CN114816019A

CN114816019A - Docking station power supply method, system and application

Info

Publication number: CN114816019A
Application number: CN202210317450.8A
Authority: CN
Inventors: 何世友; 戴金秀
Original assignee: Shenzhen Baseus Technology Co Ltd
Current assignee: Shenzhen Baseus Technology Co Ltd
Priority date: 2022-03-29
Filing date: 2022-03-29
Publication date: 2022-07-29

Abstract

The invention provides a docking station power supply method, a system and application, wherein the power supply method comprises the steps of detecting whether a docking station is connected with external electronic equipment and an external power supply, detecting whether the voltage of the power supply is greater than a preset voltage value if the docking station is connected with the external electronic equipment and the external power supply at the same time, converting the voltage exceeding the preset voltage value into the voltage of the preset voltage value if the voltage of the power supply is greater than the preset voltage value, supplying power to the electronic equipment connected with the docking station through the power supply, and supplying power to an internal power utilization module of the docking station through the voltage converted into the preset voltage value. The method provided by the invention can directly apply the power of the power supply to the load end, reduces the breaking loss on the circuit, improves the conversion efficiency of the power supply, reduces the heat productivity generated by the circuit and the unstable factors of the performance, solves the problems of low conversion efficiency, easy noise generation of the power supply and large heat productivity of the power supply in the prior art, and simultaneously reduces the cost of the circuit.

Description

Docking station power supply method, system and application

Technical Field

The invention belongs to the technical field of docking stations, and particularly relates to a docking station power supply method, a docking station power supply system and application.

Background

The most prominent characteristic of the notebook computer is that the notebook computer is ultra-light, thin and ultra-concentrated compared with a desktop computer, so that the mobile office performance of the notebook computer is greatly enhanced, but the notebook computer also has some problems along with the mobile office performance: the notebook computer is easy to collide and the original placing position is changed because the computer body is too light and cannot be stably placed on the office table; the machine body is provided with a few ports, so that the daily application cannot be met; the bottom of the body is tightly attached to the placing table top, so that the notebook with serious heat dissipation pressure can frost on the snow.

Docking station (Docking station), also known as Port Replicator (Port Replicator), is an external device specially designed for notebook computer or mobile phone, the Docking station has the function of the Port Replicator and is used for expanding to the desktop function on a certain extent at the same time, especially suitable for professionals, through duplicating, expanding the Port of the notebook computer, can make the notebook computer or mobile phone and a plurality of accessories or power adapters, network cables, mice, external keyboard, external printers and external display external devices convenient one-stop connection, can save the desktop space for users, and can make these interfaces use simultaneously after the expansion through the Docking station.

The notebook docking station is used in company, family or business demonstration, and the usability and excellent expansibility of the notebook can be increased, for example, through an interface on the docking station, the expansion function of an optical drive, a recorder, a battery, a digital keyboard, a hard disk and the like can be obtained. With the popularization of Type-C interfaces in computers and mobile phones, docking station uplink ports also began to become Type-C interfaces. Therefore, expanding Type-C into various ports is increasingly favored by consumers.

At present, two common docking station power supplies have the prior art, wherein one of the two common docking station power supplies adopts a single-DC pure voltage reduction mode, but under the condition that the voltage input and the voltage output are equal, the output efficiency of the mode is very low, the voltage difference is easy to generate, and the performance is unstable; the other mode is a dual mode combining voltage boosting and voltage reducing, but the power supply using the mode is easy to generate noise, and has the defects of low output efficiency, large heat productivity of the power supply and the like. In addition, both modes have higher circuit cost.

Disclosure of Invention

In order to overcome the above-mentioned drawbacks of the prior art, the present invention provides a power supply method of a docking station, the method comprising:

detecting whether the docking station is connected with an external electronic device and an external power supply;

if the docking station is connected with the external electronic equipment and the external power supply at the same time, detecting whether the voltage of the external power supply is greater than a preset voltage value;

if the voltage of the external power supply is greater than the preset voltage value, the voltage exceeding the preset voltage value is used for supplying power to the external electronic equipment connected with the docking station, the voltage of the external power supply is reduced to the voltage of the preset voltage value through a voltage reduction module, and the voltage of the preset voltage value is used for supplying power to an internal power utilization module of the docking station.

Further, the method further comprises:

and if the docking station is only connected with the external electronic equipment and is not connected with the external power supply, the external electronic equipment is used for supplying power to the internal power utilization module of the docking station.

Specifically, the method further comprises:

when the docking station is simultaneously connected with the external electronic equipment and the external power supply, the power supply connection of the external electronic equipment to the internal power utilization module is cut off, and the power supply connection of the external power supply to the internal power utilization module is switched on;

when the docking station is only connected with the external electronic equipment and is not connected with the external power supply, the power supply connection of the external power supply to the internal electric module is cut off, and the power supply connection of the external electronic equipment to the internal electric module is connected.

Preferably, the method further comprises:

and when the docking station is simultaneously connected with the external electronic equipment and the external power supply, the external power supply is enabled to perform fast charging on the external electronic equipment through a fast charging identification protocol.

Further, the fast charge identification protocol comprises a PD communication protocol.

The present invention also proposes a power supply system for a docking station, said system comprising:

the docking station comprises a first detection unit, a second detection unit and a control unit, wherein the first detection unit is used for detecting whether the docking station is connected with external electronic equipment and an external power supply;

the second detection unit is used for detecting whether the voltage of the external power supply is greater than a preset voltage value or not;

a voltage conversion unit for reducing a voltage of the external power supply to a voltage of the preset voltage value;

and the second power supply unit is used for supplying power to the external electronic equipment connected with the docking station by using the voltage exceeding the preset voltage value and supplying power to the internal power utilization module of the docking station by using the voltage of the preset voltage value.

Further, the system further comprises:

a first power supply unit for supplying power to an internal power module of the docking station through the external electronic device connected to the docking station.

Specifically, the system further comprises:

the power on-off switching unit is used for cutting off the power supply connection of the external electronic equipment to the internal power utilization module and switching on the power supply connection of the external power supply to the internal power utilization module when the docking station is simultaneously connected with the external electronic equipment and the external power supply;

the power on-off switching unit is further used for cutting off the power supply connection of the external power supply to the internal power utilization module and switching on the power supply connection of the external electronic equipment to the internal power utilization module when the docking station is only connected with the external electronic equipment and is not connected with the external power supply.

Specifically, the first power supply unit and the second power supply unit comprise a first chip Q1 and a first MOS transistor Q2;

the first MOS transistor Q2 is an N-type metal oxide semiconductor field effect transistor, the drain D of the first MOS transistor Q2 is connected to the first chip Q1, the source S of the first MOS transistor Q2 is grounded, the source S of the first MOS transistor Q2 and the gate G of the first MOS transistor Q2 are connected in parallel to form a second resistor R2, and the gate G of the first MOS transistor Q2 is used for receiving a signal.

Specifically, the voltage conversion unit comprises a second chip U1 and a second MOS transistor Q3;

the second MOS transistor Q3 is an N-type metal oxide semiconductor field effect transistor, the drain D of the second MOS transistor Q3 is connected to the second chip U1, the source S of the second MOS transistor Q3 is grounded, and the gate G of the second MOS transistor Q3 is used for receiving a signal sent by the communication module.

The invention also proposes a docking station provided with a power supply system of a docking station as described in the preamble, comprising:

the charging end is used for connecting an external power supply;

and the electronic equipment end is used for connecting external electronic equipment.

Specifically, the docking station further includes an MOS switch, where the MOS switch is disposed between the charging end and the electronic device end, and is configured to switch on/off of the power supply between the charging end and the electronic device end when the charging end is connected to an external power supply and/or the electronic device end is connected to an external electronic device.

The invention has at least the following beneficial effects:

according to the power supply method of the docking station, high-efficiency power supply is provided for the electronic equipment through the connected external power supply, the breakage on a circuit is reduced, the conversion efficiency of the power supply is improved, meanwhile, when the voltage of the power supply is higher than the preset value, the voltage exceeding the preset value is converted into the voltage of the preset value to be used by a power utilization module in the docking station, the heat productivity generated by the circuit is reduced, the problem that the power supply is easy to generate noise is solved, and the stability and the reliability of the performance of the power supply are improved;

furthermore, the method provided by the invention can also enable the electronic equipment to supply power to the internal power utilization module of the docking station under the condition that the docking station is not connected with an external power supply, so that the cost of the circuit is reduced.

Therefore, the method, the system and the application of the docking station power supply can directly apply the power of the power supply to the load end, reduce the breakage on the circuit, improve the conversion efficiency of the power supply, reduce the heat productivity generated by the circuit and the instability factors of the performance, solve the problems of low conversion efficiency of the power supply, easy noise generation of the power supply and large heat productivity of the power supply in the prior art, and reduce the cost of the circuit at the same time.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1 is a schematic overall flow chart of a power supply method of a docking station provided in embodiment 1;

fig. 2 is a schematic block diagram showing the overall structure of a power supply system of the docking station provided in embodiment 2;

fig. 3 is a schematic block diagram showing the overall structure of the docking station provided in embodiment 3;

fig. 4 is a schematic circuit diagram of the first power supply unit and the second power supply unit;

fig. 5 is a schematic circuit diagram of the voltage conversion unit.

Reference numerals are as follows:

1-a charging terminal; 2-an electronic device side; 3-a switch module; a 4-DC/DC step-down power module; a 5-PD communication module; 6-MOS switch; 7-a video conversion module; 8-network port conversion module; 9-HUB extension module; 200-a first detection unit; 210-a first power supply unit; 220-a second detection unit; 230-a voltage conversion unit; 240-second power supply unit.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example 1

In this embodiment, a power supply method for a docking station is provided, which can directly use power of a power supply to a load end, reduce the breaking loss on a circuit, and improve the conversion efficiency of the power supply, thereby reducing the heat generated by the circuit and the unstable factors of the performance, and having higher stability and reliability, with reference to fig. 1, the method includes:

s100: detecting whether the docking station is connected with an external electronic device and an external power supply.

If the docking station is only connected with the external electronic device and is not connected with the external power supply, the process goes to step S110; if the docking station is connected to the external electronic device and the external power source at the same time, the process proceeds to step S120.

S110: the internal power module of the docking station is powered by the external electronic device.

S120: and detecting whether the voltage of the external power supply is greater than a preset voltage value.

If the voltage of the external power is greater than the preset voltage value, the process proceeds to step S130.

S130: the voltage exceeding the preset voltage value is used for supplying power to external electronic equipment connected with the docking station, the voltage of an external power supply is reduced to the voltage of the preset voltage value through the voltage reduction module, and the voltage of the preset voltage value is used for supplying power to the internal power utilization module of the docking station.

Specifically, the docking station comprises a communication module, a switch module and a DC/DC step-down power supply module, when the docking station is only connected with an external electronic device and is not connected with an external power supply, the communication module switches on the switch module and switches off the DC/DC step-down power supply module, and the electric energy provided by the electronic device is transmitted to the internal power utilization module through the switch module;

when docking station is connected with outside electronic equipment, external power source simultaneously, if external power source's voltage is greater than predetermineeing the magnitude of voltage, communication module closes switch module, and switches on DC/DC step-down power module, through DC/DC step-down power module will surpass the voltage conversion of predetermineeing the magnitude of voltage and become the voltage of predetermineeing the magnitude of voltage to the voltage that converts into the predetermined magnitude of voltage is the power supply of inside power module, has solved the power part and has appeared the noise easily, the big shortcoming of power calorific capacity.

Specifically, to ensure the power safety of the electronic device, the method further includes:

when the docking station is simultaneously connected with external electronic equipment and an external power supply, the power supply connection of the electronic equipment to the internal power utilization module is cut off, and the power supply connection of the power supply to the internal power utilization module is switched on;

when the docking station is only connected with external electronic equipment and is not connected with an external power supply, the power supply connection of the power supply to the internal power utilization module is cut off, and the power supply connection of the electronic equipment to the internal power utilization module is switched on.

Preferably, the method further comprises:

when the docking station is connected with the external electronic equipment and the external power supply at the same time, the external power supply is enabled to perform fast charging on the external electronic equipment through the fast charging identification protocol.

Further, the rapid charging identification protocol comprises a PD communication protocol, the communication module comprises a PD communication module, and the PD communication module is used for being in charge of PD passing protocol communication of an external power supply and external electronic equipment and giving instructions to other modules. In this embodiment, the PD communication module issues an instruction to the switch module to control the switching on or off of the switch module, and issues an instruction to the DC/DC buck power supply module to control the switching on or off of the DC/DC buck power supply module.

It should be noted that the PD fast charging is a fast charging specification established by the USB-IF organization, and is one of the mainstream fast charging protocols at present.

Preferably, the preset voltage value is +5V, the charging end of the docking station for connecting to an external power supply includes a PD power supply input port for supplying power to the uplink device and the downlink device, and the voltage range of the PD power supply input port is 5V-20V.

It should be noted that the PD protocol is called USB PD (USB Power Delivery, Power transfer protocol), and the PD protocol is based on the Power transfer concept proposed after USB3.2 Gen2, and can expand the charging capability by 10 times, up to 100 watts.

Example 2

Based on the power supply method of the docking station proposed in embodiment 1, this embodiment proposes a power supply system of the docking station, please refer to fig. 2, the system includes:

a first detecting unit 200 for detecting whether the docking station is connected to an external electronic device and an external power supply;

a first power supply unit 210 for supplying power to an internal power module of the docking station through an external electronic device connected to the docking station;

a second detecting unit 220 for detecting whether the voltage of the external power is greater than a preset voltage value;

a voltage converting unit 230 for reducing a voltage of the external power supply to a voltage of a preset voltage value;

and a second power supply unit 240 for supplying power to an external electronic device connected to the docking station with a voltage exceeding a preset voltage value, and supplying power to an internal power module of the docking station with a voltage of the preset voltage value.

Specifically, to ensure the electricity safety of the electronic device, the system further includes:

Specifically, referring to fig. 3, the first power supply unit and the second power supply unit include a first chip Q1 and a first MOS transistor Q2, and there are many specific models of the first chip Q1, the first chip Q1 includes but is not limited to any one of known models, in this embodiment, the model of the first chip Q1 is GTD 3419;

the first MOS transistor Q2 is an N-type metal oxide semiconductor field effect transistor (NMOS), and when an NMOS transistor is used, the first electrode of the first MOS transistor Q2 is a drain D, and the second electrode is a source S. When the gate G of the first MOS transistor Q2 receives a high level, the first MOS transistor Q2 is in a conducting state; when the gate G of the first MOS transistor Q2 receives a low level, the first MOS transistor Q2 is in an off state.

Specifically, the drain D of the first MOS transistor Q2 is connected to the first chip Q1, the source S of the first MOS transistor Q2 is grounded, a second resistor R2 is connected in parallel between the source S of the first MOS transistor Q2 and the gate G of the first MOS transistor Q2, and the gate G of the first MOS transistor Q2 is configured to receive a signal sent by the PD communication module 5, that is, a GPIO5 signal shown in fig. 1.

Furthermore, a first end of the first chip Q1 is connected to VBUS _ M, a second end of the first chip Q1 is connected to BUS _5V, a third end of the first chip Q1 is connected to the drain D of the first MOS transistor Q2, and a first resistor R1 is connected in parallel between the first end of the first chip Q1 and the third end of the first chip Q1.

Specifically, referring to fig. 4, the voltage conversion unit includes a second chip U1 and a second MOS transistor Q3, and there are many specific selectable models of the second chip Q1, the second chip Q1 includes but is not limited to any one of known models, and in one embodiment, the model of the second chip U1 is MT 3905;

the second MOS transistor Q3 is an N-type metal oxide semiconductor field effect transistor, and in the case of using an NMOS transistor, the first electrode of the second MOS transistor Q3 is a drain D, and the second electrode is a source S. When the gate G of the second MOS transistor Q3 receives a high level, the second MOS transistor Q3 is in a conducting state; when the gate G of the second MOS transistor Q3 receives a low level, the second MOS transistor Q3 is in an off state.

Specifically, the drain D of the second MOS transistor Q3 is connected to the second chip U1, the source S of the second MOS transistor Q3 is grounded, and the gate G of the second MOS transistor Q3 is configured to receive a signal sent by the PD communication module 5, that is, a GPIO6 signal shown in fig. 2.

Further, a signal input end VIN of the second chip U1 is connected to VBUS _ M, an enable end EN of the second chip U1 is connected to a drain D of the second MOS transistor Q3, and a SW end of the second chip U1 is connected to BUS _ SV through a first inductor L1;

a capacitor is connected between the SW end of the second chip U1 and the BST end of the second chip U1, a third resistor R3 is connected in parallel between the signal input end VIN of the second chip U1 and the enable end EN of the second chip U1, a fourth resistor R4 is connected in parallel between the SW end of the second chip U1 and the FB end of the second chip U1, and the FB end of the second chip U1 is grounded through the fifth resistor R5.

The present embodiment provides a power supply system for a docking station, which is made into a systematized power supply method for the docking station of embodiment 1, so that the power supply system is more practical.

Example 3

This embodiment provides a docking station, which is provided with the system as set forth in embodiment 2, and is capable of directly applying power to a load end, reducing the breaking loss of a circuit, and improving the conversion efficiency of the power supply, so as to reduce the heat generation amount generated by the circuit and the unstable factors of the performance, and have high stability and reliability, and in addition, solve the problem of noise generated by the power supply, and reduce the cost of the power supply portion, referring to fig. 5, the docking station includes:

the charging terminal 1 is used for connecting an external power supply and supplying power to the electronic equipment and/or the internal power utilization module connected with the docking station;

the electronic equipment end 2 is used for connecting external electronic equipment, supplying power to the internal power utilization module through the electronic equipment, or supplying power to the electronic equipment through an external power supply connected with the charging end;

the switch module 3 is electrically connected with the charging end 1 and/or the electronic equipment end 2 and the internal electricity utilization module and is used for switching on or off the voltage transmitted to the internal electricity utilization module;

the DC/DC voltage reduction power supply module 4 comprises a voltage conversion module, and the DC/DC voltage reduction power supply module 4 is electrically connected with the charging end 1 and/or the electronic equipment end 2 and the internal power utilization module and is used for reducing the voltage of the external power supply to the voltage with the preset voltage value;

the communication module is electrically connected with the charging terminal 1 and/or the electronic equipment terminal 2, the switch module 3 and the DC/DC step-down power supply module 4, and is used for turning on the switch module 3 and turning off the DC/DC step-down power supply module 4 when the voltage of the external electronic equipment or the external power supply is not greater than a preset voltage value, so that the external electronic equipment or the external power supply supplies power to the internal power utilization module; the communication module is further used for closing the switch module 3 and opening the voltage reduction module 4 when the voltage of the external power supply is greater than the preset voltage value, so that the external power supply supplies power to the internal power utilization module by using the voltage of the preset voltage value. The communication module in this embodiment includes a PD communication module 5.

In this embodiment, the charging terminal 1 includes a PD power supply input port for supplying power to an uplink device and a downlink device protocol, the PD power supply input port is used to connect a PD power supply, the external electronic device includes devices such as a computer and a mobile phone, the electronic device terminal includes a Type-C port, and when the electronic device supplies power to the internal power utilization module, the electronic device discharges with the preset voltage value, thereby solving the defects that a noise easily occurs in a power supply part and the heat generation amount of the power supply is large.

Preferably, the preset voltage value is +5V, and the voltage range of the PD power input port is 5V-20V.

Further, the docking station further includes a MOS switch 6, please refer to fig. 3 again, where the MOS switch 6 is disposed between the charging terminal 1 and the electronic device terminal 2, and is electrically connected to the switch module 3 and the DC/DC step-down power supply 4 module, and is used for switching the power supply of the charging terminal 1 and the electronic device terminal 2 to be on or off when the charging terminal 1 is connected to an external power supply and/or the electronic device terminal 2 is connected to an external electronic device, so as to ensure the power utilization safety of the electronic device.

In this embodiment, the MOS switch 6 is electrically connected to the PD communication module 5, and the instruction issued by the PD communication module 5 switches the power supply of the charging terminal 1 and the electronic device terminal 2. When the docking station is not connected with an external power supply through the charging terminal 1 and is only connected with external electronic equipment through the electronic equipment terminal 2, the PD communication module 5 issues an instruction to enable the MOS switch 6 to cut off the connection between the charging terminal 1 and the internal power supply module and to connect the connection between the electronic equipment terminal 2 and the internal power supply module;

when the docking station is connected with an external power supply through the charging terminal 1 and is connected with external electronic equipment through the electronic equipment terminal 2, the PD communication module 5 issues an instruction to enable the MOS switch 6 to be connected with the charging terminal 1 and the internal power supply module, and the connection between the electronic equipment terminal 2 and the internal power supply module is cut off so as to ensure the power utilization safety of the electronic equipment.

Specifically, the docking station further comprises:

the video conversion module 7 is configured to convert a video signal output by the electronic device, and in this embodiment, the video conversion module 7 is configured to convert a native DP video signal of a Type-C port of a computer or a mobile phone into an HDMI video signal;

the network port conversion module 8 is used for converting the USB data into a network data interface;

and the HUB extension module 9 is configured to extend data of one set of USB into multiple sets of USB data signals. Illustratively, fig. 3 shows a case where the HUB expansion module 9 expands data of one USB group into three USB data signals, but it is not to be understood that the limitation on the number of groups of the HUB expansion module 9 expanding data of one USB group into data signals may be adjusted according to the requirements of the docking station design, for example, the number of groups of the USB data signals is greater than three or less than three.

Referring to fig. 3 again, in the present embodiment, when the docking station is not connected to the external power source through the charging terminal 1, and is connected to the external electronic device only through the electronic device terminal 2, the PD communication module 5 gives instructions to the switch module 3 to control the switch module 3 to be switched on and gives instructions to the DC/DC step-down power supply 4 module to control the DC/DC step-down power supply 4 to be switched off, and the MOS switch 6 cuts off the connection between the charging terminal 1 and the modules such as the video conversion module 7, the network port conversion module 8, the HUB expansion module 9, and the like, and connects the connection between the electronic equipment terminal 2 and the modules such as the video conversion module 7, the network port conversion module 8, the HUB expansion module 9, and the like, the +5V voltage value provided by the electronic equipment connected with the docking station is transmitted to modules needing power consumption, such as a video conversion module 7, a network port conversion module 8, a HUB expansion module 9 and the like in the docking station through the switch module 3;

when the docking station is connected with an external power supply through the charging terminal 1, the external electronic equipment is connected through the electronic equipment terminal 2, and the voltage of the external power supply is equal to +5V, the PD communication module 5 controls the switch module 3 to be switched on by giving an instruction to the switch module 3, and controls the DC/DC step-down power supply module 4 to be switched off by giving an instruction to the DC/DC step-down power supply 4 module, so that the MOS switch 6 is switched on to connect the charging terminal 1 with the video conversion module 7, the network port conversion module 8, the HUB expansion module 9 and other modules, and the connection of the electronic equipment terminal 2 with the video conversion module 7, the network port conversion module 8, the HUB expansion module 9 and other modules is cut off, so that the power supply for connecting the docking station supplies power for the electronic equipment connected with the docking station with the voltage of +5V, and the voltage of the voltage value of +5V provided by the power supply for connecting the docking station is used as the video conversion module 7 in the docking station through the switch module 3, The network port conversion module 8, the HUB expansion module 9 and other modules needing power supply;

when the docking station is connected with an external power supply through the charging terminal 1, is connected with external electronic equipment through the electronic equipment terminal 2, and the voltage of the external power supply is more than +5V, the PD communication module 5 gives an instruction to the switch module 3 to control the switch module 3 to be closed, and gives an instruction to the DC/DC step-down power supply 4 to control the DC/DC step-down power supply module 4 to be conducted, so that the MOS switch 6 is used for switching on the connection of the charging terminal 1 and the modules such as the video conversion module 7, the network interface conversion module 8, the HUB expansion module 9 and the like, and switching off the connection of the electronic equipment terminal 2 and the modules such as the video conversion module 7, the network interface conversion module 8, the HUB expansion module 9 and the like, so that the power supply connected with the docking station supplies power for the electronic equipment connected with the docking station with the voltage exceeding +5V, and converts the voltage exceeding +5V into the voltage of +5V through the DC/DC step-down power supply module 4, and the voltage converted into the voltage value of +5V is used as power supply for modules needing power utilization, such as the video conversion module 7, the network port conversion module 8, the HUB expansion module 9 and the like in the docking station.

It should be noted that the HDMI is a High Definition Multimedia Interface (High Definition Multimedia Interface) in the whole course, and is a fully digital video and audio transmission Interface, which can transmit uncompressed audio and video signals; RJ45 is a common name for a standard 8-bit modular interface, which is one of the information jack connectors in a wiring system.

In summary, the present invention provides a docking station power supply method, system and application, the method provided by the present invention can directly apply power to a load end, reduce the loss on a circuit, improve the conversion efficiency of a power supply, reduce the heat generation amount generated by the circuit and the unstable factors of performance, solve the problems of low conversion efficiency of the power supply, easy noise generation of the power supply and large heat generation amount of the power supply in the prior art, and reduce the cost of the circuit at the same time.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims

1. A method of powering a docking station, the method comprising:

2. The method of powering a docking station according to claim 1, further comprising:

3. The method of powering a docking station according to claim 2, further comprising:

4. The method of powering a docking station according to claim 1, further comprising:

5. The method of powering a docking station according to claim 4, wherein said fast charge identification protocol comprises a PD communication protocol.

6. A power supply system for a docking station, comprising:

7. The docking station power supply system of claim 6, further comprising:

8. The docking station power supply system of claim 7, further comprising:

9. The power supply system of docking station as claimed in claim 7, wherein the first and second power supply units comprise a first chip Q1 and a first MOS transistor Q2;

10. The power supply system of docking station as claimed in claim 6 or 7, wherein the voltage converting unit comprises a second chip U1 and a second MOS transistor Q3, the second MOS transistor Q3 is an N-type metal oxide semiconductor field effect transistor, the drain D of the second MOS transistor Q3 is connected to the second chip U1, the source S of the second MOS transistor Q3 is grounded, and the gate G of the second MOS transistor Q3 is used for receiving the signal transmitted by the communication module.

11. Docking station, characterized in that it is provided with a power supply system of a docking station according to any of claims 6-10, comprising:

the charging end is used for connecting an external power supply;

12. The docking station of claim 11, further comprising:

the MOS switch is arranged between the charging end and the electronic equipment end and used for switching the on-off of the power supply of the charging end and the electronic equipment end when the charging end is connected with an external power supply and/or the electronic equipment end is connected with external electronic equipment.