TWM564287U - Kvm device having power managering with power managering function - Google Patents

Abstract

A KVM switch device is provided in the present disclosure. The KVM switch device includes a plurality of USB connectors, a control unit, a power transforming unit, a power providing unit, a power distribution unit, and a power application unit. When the power providing unit is electrically connected to an external voltage, the control unit adjusts the power transmission direction and the power transmission states based on the power transmission states of the USB connectors. When the control unit detects that power providing unit doesn't connect to the external voltage, the USB connectors switch the first mode to the second mode such that the electronic devices provide the electric power to the KVM switch device based the power providing capacities thereof through the USB connectors.

Description

Multi-computer switching device with power management capability

The present invention relates to a multi-computer switching device, and in particular to a multi-computer switching device with power management capability.

In recent years, the use of a multi-computer switching device to connect multiple computers for work task switching has become a normal working type of various industries. However, traditional multi-computer switching devices can only receive a specific external power source as the main source of power. When the external power supply is stopped, the work is therefore suspended. In addition to the reduced work efficiency, it is also impossible to effectively utilize existing power sources, such as power in a storage power supply unit of each computer, such as a battery, an uninterruptible power system, and the like.

Therefore, how to provide a multi-computer switching device with power management capability and effectively improving the efficiency of power consumption is obviously an important issue in the industry.

In view of this, the present invention provides a multi-computer switching device, comprising: a plurality of universal serial bus bars electrically connected to a plurality of electronic devices; a control unit; a power conversion unit, an electrical connection control unit; and a power supply The unit is electrically connected to the power conversion unit, and the power supply unit is electrically connected to an external voltage for transmitting an external voltage to the power conversion unit, and the power conversion unit converts the external voltage to an internal voltage suitable for the multi-computer switching device; , electrical connection control list And the universal sequence bus, the power configuration unit detects a plurality of power transmission states of the universal sequence bus, and provides the power transmission status to the control unit; and a power application unit electrically connected to the power conversion unit And the universal sequence bus bar for distributing the power provided by the power conversion unit to the electronic device connected to the universal sequence bus; wherein, when the power supply unit is electrically connected to an external voltage, the control unit And providing, according to the power transmission state of the universal sequence bus, a plurality of power control signals corresponding to the power transmission state to a power conversion unit, configured to regulate a power transmission direction and a power transmission state of the universal sequence bus Wherein, when the control unit detects that the power supply unit is not connected to the external voltage, the control unit notifies the electronic device through the power configuration unit to switch the universal sequence bus from a first mode to a second mode to Passing the electronic device through the universal sequence according to a respective power supply state KVM switch bus are supplied electrical energy.

In summary, the multi-computer switching device of the present invention can provide the electric energy required by the electronic device according to the power transmission state of the plurality of electronic devices electrically connected through the universal serial bus C-type. When the multi-computer switching device is not connected to the external power supply, each electronic device can separately supply power to the multi-computer switching device through the universal serial bus type C. Furthermore, the voltage current supplied by the KVM switching device to each electronic device through the universal serial bus can be adjusted according to the power transmission state of the electronic device. On the other hand, the voltage and current that each electronic device provides to the multi-computer switching device through the universal sequence bus bar can also be adjusted according to the power transmission state of the electronic device. In this way, since the multi-computer switching device of the present invention has power management capability, not only can the power between the connected electronic devices be effectively utilized, but also the power transmission efficiency can be accelerated.

In order to make the above-mentioned features and advantages of the present invention more comprehensible, the preferred embodiments will be described below in detail with reference to the accompanying drawings.

1‧‧‧Multicomputer switching device

6‧‧‧External power supply

11‧‧‧Control unit

12‧‧‧Power Conversion Unit

13‧‧‧Power supply unit

14‧‧‧Power configuration unit

15‧‧‧Power Application Unit

17‧‧‧External power connection埠

18‧‧‧Connecting module

18-1~18-4‧‧‧Connector

2-1~2-8‧‧‧First Electronic Device~Eighth Electronic Device

3-1‧‧‧ Mouse

3-2‧‧‧ keyboard

3-3‧‧‧USB flash drive

3-4‧‧‧hard disk case

16-1~16-8‧‧‧First Universal Sequence Bus Type C~8th Universal Sequence Bus Type C

CC1~CC8‧‧‧First Configuration Channel Group~8th Configuration Channel Group

VBUS1~VBUS8‧‧‧First Power Channel Group~8th Power Channel Group

FIG. 1 is a schematic diagram of a multi-computer switching device with other devices according to an embodiment of the present invention; In the figure, the multi-computer switching device is electrically connected to an external power source.

FIG. 2 is a schematic diagram of power transmission of a multi-computer switching device with other devices according to an embodiment of the present invention.

FIG. 3 is another schematic diagram of another power transmission of the multi-computer switching device of the present embodiment in combination with other devices.

Various illustrative embodiments are described more fully hereinafter with reference to the accompanying drawings. However, the inventive concept may be embodied in many different forms and should not be construed as being limited to the illustrative embodiments set forth herein. Rather, these exemplary embodiments are provided so that this description will be thorough and complete, and the scope of the inventive concept will be fully conveyed to those skilled in the art. In the drawings, the size and relative sizes of layers and regions may be exaggerated for clarity. Similar numbers always indicate similar components.

It will be understood that, although the terms first, second, third, etc. may be used herein to describe various elements, such elements are not limited by the terms. These terms are used to distinguish one element from another. Thus, a first element discussed below could be termed a second element without departing from the teachings of the inventive concept. As used herein, the term "and/or" includes any of the associated listed items and all combinations of one or more.

The multi-computer switching device will be described below with reference to the drawings in at least one embodiment. However, the following embodiments are not intended to limit the disclosure.

[Embodiment of the present multi-computer switching device]

Please refer to FIG. 1. FIG. 1 is a schematic diagram of a multi-computer switching device according to an embodiment of the present invention, wherein the multi-computer switching device is electrically connected to an external power source.

In this embodiment, the multi-computer switching device 1 includes: a plurality of universal serial bus C-type, a control unit 11, a power conversion unit 12, a power supply unit 13, a power configuration unit 14, and a power application unit. 15. In this embodiment, The multi-computer switching device 1 includes a first universal sequence bus bar C type 16-1, a second universal sequence bus bar C type 16-2, a third universal sequence bus bar C type 16-3, and a fourth universal sequence. Bus type C 16-4, a fifth universal sequence bus bar C type 16-5, a sixth universal sequence bus bar C type 16-6, a seventh universal sequence bus bar C type 16-7, and a first Eight universal serial bus C type 16-8. In this embodiment, the KVM switching device 1 passes the first universal sequence bus bar C type 16-1, the second universal sequence bus bar C type 16-2, and the third universal sequence bus bar C type 16-3, fourth. Universal serial bus C-type 16-4, fifth universal serial bus C-type 16-5, sixth universal serial bus C-type 16-6, seventh universal serial bus C-type 16-7, and eighth universal The serial bus C-type 16-8 is electrically connected to a first electronic device 2-1, a second electronic device 2-2, a third electronic device 2-3, a fourth electronic device 2-4, and a first Five electronic devices 2-5, a sixth electronic device 2-6, a seventh electronic device 2-7, and an eighth electronic device 2-8. In this embodiment, the number of the universal serial bus type C and the connected electronic devices can be adjusted according to actual needs, and is not limited in the present creation.

In the present embodiment, the control unit 11 includes at least one microprocessor. The power conversion unit 12 then includes at least a DC voltage conversion circuit. The power supply unit 13 then includes at least a current distribution circuit and a DC conversion circuit. A power configuration unit 14 is configured to receive power transmission status of each of the universal serial bus types C-1 to 16-8. In this embodiment, the power supply configuration unit 14 further includes a storage component (not shown) for storing power transmission states of the universal serial bus types C-1 to 16-8. The power application unit 15 includes a DC conversion circuit, a current distribution circuit, and a current.

In the embodiment, the KVM switching device 1 further includes an external power port 17 and a port module 18. The power supply unit 13 is electrically connected to the external power connection port 17 and the connection port module 18. The external power supply port 17 is electrically connected to an external power supply 6. In this embodiment, the external power supply 6 may include an AC power source, a DC power source, an AC DC voltage converter, or a DC voltage converter, which is not limited in this creation. That is, the external power supply 6 is powered by an external power supply. The port 17 supplies power to the KVM switching device 1. In the present embodiment, the electric power supplied from the external power source 6 to the multi-computer switching device 1 through the external power source port 17 is further converted by the power supply unit 13 into the voltage required for the internal components in the KVM switching device 1.

The control unit 11 is electrically connected to the power conversion unit 12 and the power supply unit 14. The power configuration unit 14 is electrically connected to the first universal sequence bus C-type 16-1, the second universal sequence bus C-type 16-2, the third universal sequence bus C-type 16-3, and the fourth universal sequence bus C. Type 16-4, fifth universal sequence bus bar C type 16-5, sixth universal sequence bus bar C type 16-6, seventh general sequence bus bar C type 16-7, and eighth universal sequence bus bar type C 16-8.

The power conversion unit 12 is electrically connected to the power application unit 15. The power application unit 15 is electrically connected to the first universal sequence bus bar C type 16-1, the second universal sequence bus bar C type 16-2, the third universal sequence bus bar C type 16-3, and the fourth universal sequence bus bar C. Type 16-4, fifth universal sequence bus bar C type 16-5, sixth universal sequence bus bar C type 16-6, seventh general sequence bus bar C type 16-7, and eighth universal sequence bus bar type C 16-8, the power application unit 15 provides the general-purpose serial bus C type 16-1~16-8 power, respectively.

In this embodiment, the first universal sequence bus bar C type 16-1, the second universal sequence bus bar C type 16-2, the third universal sequence bus bar C type 16-3, and the fourth universal sequence bus bar C type 16-4, the fifth universal sequence bus bar C type 16-5, the sixth universal sequence bus bar C type 16-6, the seventh universal sequence bus bar C type 16-7, and the eighth universal sequence bus bar C type 16 -8 includes a first configuration channel group CC1, a second configuration channel group CC2, a third configuration channel group CC3, a fourth configuration channel group CC4, a fifth configuration channel group CC5, and a sixth configuration channel group. CC6, a seventh configuration channel group CC7, and an eighth configuration channel group CC8.

In this embodiment, the first configuration channel group CC1, the second configuration channel group CC2, the third configuration channel group CC3, the fourth configuration channel group CC4, the fifth configuration channel group CC5, the sixth configuration channel group CC6, and the seventh Configure channel group CC7 and eighth The channel group CC8 includes a first configuration channel (not shown) and a second configuration channel (not shown). That is, in the embodiment, the power supply configuration unit 14 is electrically connected to the first configuration channel group CC1, the second configuration channel group CC2, the third configuration channel group CC3, the fourth configuration channel group CC4, and the fifth configuration channel group, respectively. The first configuration channel (not shown) and the second configuration channel (not shown) of the CC5, the sixth configuration channel group CC6, the seventh configuration channel group CC7, and the eighth configuration channel group CC8.

The control unit 11 of the KVM switching device 1 passes through the power configuration unit 14 and the first configuration channels (not shown) and the second configuration channels of the configuration channel groups CC1 to CC8 of the general-purpose serial bus C-type (Fig. The power transmission state of the electronic device 2-1~2-8 is obtained, wherein the power transmission state includes: a charging power supply state, a charging voltage value, a charging current value, a power supply voltage value, a power supply current value, and a Power supply capability status.

In this embodiment, the charging power supply states of the electronic devices 2-1 to 2-8, that is, the common sequence bus bars C-1 to 16-8 are in the first mode or the second mode. The first mode is a Downstream Facing Port (DFP), and the second mode is an Upstream Facing Port (UFP). When the universal sequence bus is C-type 16-1~16 When the -8 is in the first mode, the first configuration channels (not shown) of the universal sequence bus bars C-1-16~16-8 are electrically connected to a first impedance (not shown), when When the universal sequence bus C type 16-1~16-8 is in the second mode, the second configuration channel (not shown) of the universal sequence bus bar (not shown) is electrically connected to a second impedance (figure Not shown).

In this embodiment, the first configuration channel (not shown) may be electrically connected to a third impedance (not shown). The impedance value of the third impedance (not shown) is a variable value. Taking the first universal sequence bus bar C-type 16-1 as an example, the control unit 11 is electrically connected according to the first configuration channel (not shown) of the first configuration channel group of the first universal sequence bus bar C-type 16-1. The impedance value of the third impedance (not shown) to adjust the voltage value and current of the first current channel group CC1 supplied to the first general-purpose serial bus C-type 16-1 value.

In this embodiment, the charging voltage value, the charging current value, the power supply voltage value, the power supply current value, and the power supply capability state of the electronic devices 2-1 to 2-8 can pass through the configuration channel groups CC1 to CC8. A configuration channel (not shown) or a second configuration channel (not shown), a Vender Defined Message (VDM), is transmitted to the power configuration unit 14 so that the control unit 11 is configured according to each electronic device 2 The custom coded signals transmitted from -1 to 2-8 provide appropriate voltage and current to the electronic devices 2-1~2-8. The Vender Defined Message (VDM) is Bi-phase Mark Coding (BMC). That is, the designer can design according to the custom coded signal, and let the electronic device transmit a code of a predetermined power transmission mode to the control unit 11 of the KVM switching device 1. That is, the control unit 11 can further adjust the power transmission direction and the power of the universal sequence bus 16-1~16-8 in different modes according to the customized coding signals provided by the electronic devices 2-1~2-8. Transmission status.

That is, the multi-computer switching device 1 can provide the electronic devices 2-1~8-8 power through the universal serial bus bars 16-1~16-8 or from the electronic devices 2-1~2-8 Get electricity.

In this embodiment, the first universal sequence bus bar C type 16-1, the second universal sequence bus bar C type 16-2, the third universal sequence bus bar C type 16-3, and the fourth universal sequence bus bar C type 16-4, the fifth universal sequence bus bar C type 16-5, the sixth universal sequence bus bar C type 16-6, the seventh universal sequence bus bar C type 16-7, and the eighth universal sequence bus bar C type 16 -8 includes a first power channel group VBUS1, a second power channel group VBUS2, a third power channel group VBUS3, a fourth power channel group VBUS4, a fifth power channel group VBUS5, and a sixth power channel group. VBUS6, a seventh power channel group VBUS7, and an eighth power channel group VBUS8.

In this embodiment, the first power channel group VBUS1, the second power channel group VBUS2, the third power channel group VBUS3, the fourth power channel group VBUS4, and the fifth The power channel group VBUS5, the sixth power channel group VBUS6, the seventh power channel group VBUS7, and the eighth power channel group VBUS8 respectively include at least a first power channel (not shown) and a second power channel (not shown). .

In this embodiment, when the first power channel group VBUS1, the second power channel group VBUS2, the third power channel group VBUS3, the fourth power channel group VBUS4, the fifth power channel group VBUS5, and the sixth power channel group VBUS6, When the seven power channel group VBUS7 and the eighth power channel group VBUS8 are in the first mode, that is, in the downlink data connection mode, the multi-computer switching device 1 passes through the first power channel group VBUS1 and the second power channel group VBUS2, respectively. The third power channel group VBUS3, the fourth power channel group VBUS4, the fifth power channel group VBUS5, the sixth power channel group VBUS6, the seventh power channel group VBUS7, and the first power channel group VBUS8 first power channel (figure Power is not supplied to each of the electronic devices 2-1 to 2-8.

When the first power channel group VBUS1, the second power channel group VBUS2, the third power channel group VBUS3, the fourth power channel group VBUS4, the fifth power channel group VBUS5, the sixth power channel group VBUS6, and the seventh power channel group VBUS7 And when the eighth power channel group VBUS8 is in the second mode, that is, in the uplink data connection mode, each of the electronic devices 2-1~2-8 passes through the first power channel group VBUS1 and the second power channel group respectively. VBUS2, third power channel group VBUS3, fourth power channel group VBUS4, fifth power channel group VBUS5, sixth power channel group VBUS6, seventh power channel group VBUS7, and second power channel group VBUS8 second power channel ( The figure (not shown) supplies power to the KVM switching device 1.

In this embodiment, the first universal sequence bus bar C type 16-1, the second universal sequence bus bar C type 16-2, the third universal sequence bus bar C type 16-3, and the fourth universal sequence bus bar C type 16-4, the fifth universal sequence bus bar C type 16-5, the sixth universal sequence bus bar C type 16-6, the seventh universal sequence bus bar C type 16-7, and the eighth universal sequence bus bar C type 16 -8 can pass through the first power channel group VBUS1, the second power channel group VBUS2, the third power channel group VBUS3, and the fourth power channel group respectively VBUS4, fifth power channel group VBUS5, sixth power channel group VBUS6, seventh power channel group VBUS7, and eighth power channel group VBUS8 provide voltages between 5V and 20V, and currents from 0.1A to 5A (standard current is 0.5) A) electrical energy.

That is, the control unit 11 of the KVM switching device 1 provides power control corresponding to the power transmission according to the power transmission states of the general-purpose serial bus bars C-1 to 16-8 obtained by the power supply configuration unit 14. The signal is applied to the power conversion unit 12 to regulate the power transmission direction and the power transmission state of the general-purpose serial bus C-type. The control unit 11 supplies the power supply unit 13 with the power of the power conversion unit 12, and according to the power transmission status of the general-purpose serial bus bars 16-1~16-8, the power supply application unit 15 respectively supplies appropriate voltage and current to the Electronic devices 2-1~2-8.

In the present embodiment, the KVM switching device 1 is electrically connected to the external power supply device 6. Therefore, the KVM switching device 1 can supply power to the electronic devices 2-1 to 2-8. That is, the first universal sequence bus bar C type 16-1, the second universal sequence bus bar C type 16-2, the third universal sequence bus bar C type 16-3, and the fourth universal sequence bus bar C type 16-4 , the fifth universal sequence bus bar C type 16-5, the sixth universal sequence bus bar C type 16-6, the seventh universal sequence bus bar C type 16-7, and the eighth universal sequence bus bar C type 16-8 are In the first mode, that is, in the downlink data connection mode. Wherein, the first universal sequence bus bar C type 16-1, the second universal sequence bus bar C type 16-2, the third universal sequence bus bar C type 16-3, and the fourth universal sequence bus bar C type 16-4, The fifth universal sequence bus bar C type 16-5, the sixth universal sequence bus bar C type 16-6, the seventh universal sequence bus bar C type 16-7, and the eighth universal sequence bus bar C type 16-8 respectively pass a first power channel group VBUS1, a second power channel group VBUS2, a third power channel group VBUS3, a fourth power channel group VBUS4, a fifth power channel group VBUS5, a sixth power channel group VBUS6, a seventh power channel group VBUS7, and The first power channel (not shown) of the eighth power channel group VBUS8 provides power to the first electronic device 2-1, the second electronic device 2-2, the third electronic device 2-3, and the fourth electronic device 2-4 , fifth electronic device 2-5, sixth electronic device 2-6, seventh electronic device 2-7, and eighth electronic device 2-8.

The electronic devices 2-1~2-8 include a personal computer, a tablet computer, a mobile phone, a notebook computer or a multimedia player.

In this embodiment, the output voltage of the multi-computer switching device 1 provided to the electronic devices 2-1~2-8 through the universal serial bus bars C-1-16~8-8 is between 5V and 20V. The output current supplied by the multi-computer switching device 1 to the electronic devices 2-1 to 2-8 through the universal serial bus bars C-1 to 16-8 is between 0.1A and 5A. For example, the KVM switching device 1 can provide an output voltage of 5V/0.5A, 5V/0.9A, 5V/1.5A, 5V/3A, or the output current through the first universal serial bus C-type 16-1, or It is 20V/5A. In this embodiment, the output voltage and output current provided by the multi-computer switching device 1 through the general-purpose serial bus bars C-1 to 16-8 can be adjusted according to actual needs, which is not limited in the present creation. In other words, the power application unit 15 can provide or receive a voltage of 5V to 20V. Alternatively, the power application unit 15 can provide or receive a current of 0.1A to 5A.

In this embodiment, the port module 18 includes a plurality of ports. As shown in FIG. 1, the port module 18 includes a port 18-1, a port 18-2, and a port 18-3. And a connection 埠 18-4. The power supply unit 13 respectively supplies the plurality of ports -118-1~18-4 with a maximum specification of 5V/500mA. In this embodiment, the connection port 18-1 is electrically connected to a mouse 3-1. The port 18-2 is electrically connected to a keyboard 3-2. Connect 埠18-3 to electrically connect a flash drive 3-3. The connection port 18-4 is electrically connected to a hard disk case 3-4. In this creation, the various peripheral devices connected to 埠18-1~18-4 can be adjusted according to actual needs, and there is no restriction in this creation. The number of ports included in the port module 18 can also be adjusted according to actual needs, and is not limited in this creation. In addition, not every connection port needs to be electrically connected to a peripheral device, and can be connected according to actual needs, and is not limited in this creation.

In this embodiment, the peripheral device includes: a keyboard, a mouse, a screen, a flash drive, or a standard USB device.

Please refer to FIG. 2. FIG. 2 is a schematic diagram of power transmission of a multi-computer switching device with other devices according to an embodiment of the present invention.

In the present embodiment, the KVM switching device 1 is not electrically connected to the external power supply 6, that is, the external voltage supplied from the external power supply 6 is not received.

When the control unit 11 detects that the power supply unit 13 is not electrically connected to the external power supply 6 through the external power supply port 17 to receive the external voltage, the control unit 11 notifies the electronic devices 2-1 through the power supply configuration unit 14. 2-8, the general-purpose sequence bus bars C-1-16~16-8 are switched from the first mode to the second mode, that is, the general-purpose sequence bus bars C-1-16~16-8 are downlinked. The data connection mode is switched to the uplink data connection mode, so that the electronic devices 2-1~2-8 are respectively provided by the universal serial bus types C-1-16~16-8 according to respective power supply states. The multi-computer switching device 1 power.

In this embodiment, the electronic devices 2-1~2-8 provide the voltage to the multi-computer switching device 1 through the universal serial bus bars C-1 to 16-8 from 5V to 20V. The output currents provided by the electronic devices 2-1 to 2-8 to the KVM switching device 1 through the general-purpose serial bus bars C-1 to 16-8 are between 0.1A and 5A. For example, the KVM switching device 1 can provide an output voltage of 5V/0.5A, 5V/0.9A, 5V/1.5A, 5V/3A, or the output current through the first universal serial bus C-type 16-1, or It is 20V/5A. In this embodiment, the voltages and currents provided by the electronic devices 2-1 to 2-8 through the universal serial bus bars C-1 to 16-8 can be adjusted according to actual needs, and are not used in the present creation. limit.

Please refer to FIG. 3. FIG. 3 is a schematic diagram of another power transmission of the multi-computer switching device of the present embodiment in combination with other devices.

In this embodiment, the power supply unit 13 of the KVM switching device 1 is electrically connected to the external power supply 6 through the external power connection port 17, that is, the control unit 11 detects that the power supply unit 13 has been connected through the power conversion unit 12. To the external power supply 6, the KVM switching device 1 has sufficient electric energy to supply the electronic devices 2-1 to 2-8 electrically connected to the general-purpose serial bus bars C-1 to 16-8.

In this embodiment, the control unit 11 passes the power supply transmission state provided by each of the electronic devices 2-1 to 2-8 obtained by the power supply configuration unit 14 through the power application unit 15 and the general-purpose serial bus C-type 16-1~ 16-8 provides output voltage and output current to the electronic devices 2-1~2-8. In this embodiment, the power application unit 15 of the KVM switching device 1 provides 900 mA of output current to the first through the first universal sequence bus bar C type 16-1 and the second universal sequence bus bar C type 16-2, respectively. The electronic device 2-1 and the second electronic device 2-2. The power application unit 15 of the KVM switching device 1 supplies the output current of 3A to the eighth electronic device 2-8 through the eighth universal sequence bus 16-8. That is, in the embodiment, the control unit 11 of the KVM switching device can provide each of the electronic devices 2-1~2-8 according to the power transmission status of the electronic devices 2-1~2-8. Voltage and current. In other embodiments, the control unit 11 of the KVM switching device can provide the same voltage and current to the electronic devices 2-1~2-8 on average, for example, 5V/500mA, which can be adjusted according to actual needs. There are no restrictions.

In addition, in other embodiments, the control unit 11 can obtain the current state of charge of each of the electronic devices 2-1 to 2-8 according to the power transmission state of each of the electronic devices 2-1 to 2-8, and output according to the power level. The adjustment of the current, for example, when the power of the first electronic device 2-1 is the lowest, the control unit 11 and the power application unit 15 preferentially provide a larger output current to the first electronic device through the first universal sequence bus 16-1. 2-1.

[Possible effects of the examples]

In summary, the multi-computer switching device of the present invention can provide the electric energy required by the electronic device according to the power transmission state of the plurality of electronic devices electrically connected through the universal serial bus C-type. When the multi-computer switching device is not connected to the external power supply, each electronic device can separately supply power to the multi-computer switching device through the universal serial bus type C. Furthermore, the voltage current supplied by the KVM switching device to each electronic device through the universal serial bus can be adjusted according to the power transmission state of the electronic device. In contrast, each electronic device is routed through a common sequence. The voltage and current supplied to the multi-computer switching device can also be adjusted according to the power transmission state of the electronic device. In this way, since the multi-computer switching device of the present invention has power management capability, not only can the power between the connected electronic devices be effectively utilized, but also the power transmission efficiency can be accelerated.

The above description is only an embodiment of the present invention, and is not intended to limit the scope of the patent of the present invention.

Claims (10)

A multi-computer switching device includes: a plurality of universal serial bus bars electrically connected to a plurality of electronic devices; a control unit; a power conversion unit electrically connected to the control unit; and a power supply unit electrically connected to the power supply a power conversion unit electrically connected to an external voltage for transmitting the external voltage to the power conversion unit, wherein the power conversion unit converts the external voltage to an internal voltage applicable to the KVM switching device; Electrically connecting the control unit and the universal sequence bus, the power configuration unit detecting a plurality of power transmission states of the universal sequence bus and providing the power transmission status to the control unit; and a power application a unit electrically connected to the power conversion unit and the universal serial bus for distributing the power provided by the power conversion unit to the electronic devices connected to the universal serial bus; wherein, the power supply unit When the external voltage is electrically connected, the control unit merges according to the universal sequences The power transmission states provide a plurality of power control signals corresponding to the power transmission states to the power conversion unit for regulating the power transmission direction and the power transmission state of the universal sequence bus; wherein, when the control unit When detecting that the power supply unit is not connected to the external voltage, the control unit notifies the electronic devices through the power configuration unit to switch the universal sequence bus from a first mode to a second mode, so that the The electronic devices respectively provide the KVM switching device power through the universal sequence bus bars according to a respective power supply state. The computer switching device of claim 1, wherein the universal sequence bus includes a first configuration channel and a second configuration channel, and the power configuration unit is electrically connected to the universal sequence bus First configuration channel and the a second configuration channel, the control unit of the multi-computer switching device acquires a charging power supply state of the electronic devices through the power configuration unit and the first configuration channel and the second configuration channel of the universal sequence bus A charging voltage value, a charging current value, a supply voltage value, a supply current value, and a power supply capability state. For example, the computer switching device of the patent application scope 2, wherein the first mode is a Downstream Facing Port (DFP), and the second mode is an Upstream Facing Port (UFP). When the universal sequence bus is in the first mode, the first configuration channel of the universal sequence bus is electrically connected to a first impedance, when the universal sequence bus is in the second mode, The second configuration channel of the universal sequence bus is electrically connected to a second impedance. The computer switching device of claim 1, wherein when the power supply unit is not connected to the external voltage, the electronic devices pass through the universal serial bus, the power application unit according to a respective power supply state. And supplying power to the multi-computer switching device, and the KVM switching device respectively supplies power to the peripheral devices according to the power supply state and a power supply capability state of the electronic devices. The computer switching device of claim 1, wherein the power application unit provides an output voltage of 5V to 20V through the universal sequence bus, and the power application unit passes the universal sequence bus according to the electronic devices. The charging voltage value provided by the first configuration channel or the second configuration channel to provide a corresponding charging voltage to the electronic devices. The computer switching device of claim 5, wherein the power application unit provides an output current of 0.1A to 5A through the universal serial bus, the electric The source application unit provides the corresponding charging current to the electronic devices according to the charging current values provided by the electronic device through the first configuration channel or the second configuration channel of the universal serial bus. The computer switching device of claim 1, wherein the universal serial bus is a universal serial bus C. The computer switching device of claim 1, further comprising: a port module, comprising a plurality of ports, wherein the ports of the port are electrically connected to a peripheral device, wherein the power source is The supply unit is electrically connected to the port module, and the power supply unit supplies an electric energy to the port module. The computer switching device of claim 8, wherein the peripheral device comprises: a keyboard, a mouse, a screen, a flash drive, or a standard USB device. The computer switching device of claim 1, wherein the electronic device comprises: a personal computer, a tablet computer, a mobile phone, a notebook computer or a multimedia player.