TWI661693B - Judgement unit and controlling method thereof, power source equipment and controlling method thereof - Google Patents

Abstract

A judgment unit is applied to an Ethernet power supply device (Power over Ethernet). The judging unit is used to judge whether the Ethernet power supply device is coupled to the load. If the judging unit determines that the power supply device is not coupled to the load, it outputs a timing handshake start signal to start the timing handshake signal communication mode of the Ethernet power supply device, so as to perform timing handshake communication with the load.

Description

Judging unit and control method thereof, power supply device and control method thereof

This case relates to an electronic device and a control method thereof, and in particular to a judgment unit and a control method thereof, a power supply device and a control method thereof.

Current circuit design because the power supply equipment (PSE) and the load (Powered Device, PD) do full-time handshake signal communication to determine whether the power supply device PSE should be powered by the correct load PD, so even under load When the PD is removed, the power supply device PSE will still consume power, making the current Ethernet power supply device unable to meet the Department of Energy (DoE) specifications.

When the current circuit realizes full-time handshake signal communication, even when the load PD has been removed, the controller of the power supply device PSE will still consume power, so it cannot reach the US Department of Energy DoE for no-load conditions. Specification of No Load Power.

This summary is intended to provide a simplified summary of this disclosure so that readers may have a basic understanding of this disclosure. This summary is not a comprehensive overview of this disclosure, and it is not intended to point out important / critical elements of the embodiments of the invention or to define the scope of the invention.

One of the contents of this case is to provide a judgment unit and a control method thereof, a power supply device and a control method thereof, so as to improve the problems of the conventional technology.

In order to achieve the above purpose, one aspect of the technical aspect of the present case relates to a judgment unit. This judgment unit is applied to an Ethernet power supply device (Power over Ethernet). The judging unit is used to judge whether the Ethernet power supply device is coupled to the load. If the judging unit determines that the power supply device is not coupled to the load, it outputs a timing handshake activation signal to start the timing handshake signal communication mode of the Ethernet power supply device, so as to perform timing handshake communication with the load.

In order to achieve the above object, another technical aspect of the present invention relates to a power supply device. The power supply device is used to supply power to a load, and includes a judgment unit and a controller. The determination unit is used to determine whether the power supply device is coupled to the load. If the determination unit determines that the power supply device is not coupled to the load, it outputs a timing handshake start signal. The controller is coupled to the judging unit. If the controller receives the timing handshake start signal output by the judging unit, the controller adopts the timing handshake signal communication mode to perform timing handshake communication with the load.

In order to achieve the above purpose, another technical aspect of the content of the present invention relates to a control method of a judgment unit, which is applied to an Ethernet power supply device. The control method includes: judging whether the Ethernet power supply device is coupled to the load by the judging unit; and if the judging unit determines that the power supply device is not coupled to the load, outputting a timing handshake activation signal to start the Ethernet The power supply device's timing handshake signal communication mode is used to perform timing handshake communication with the load.

In order to achieve the above purpose, another technical aspect of the present case is a control method of a power supply device for supplying power to a load. The power supply device includes a determination unit and a controller, and the determination unit is coupled to the controller. The control method includes: judging whether the power supply device is coupled to the load by the judging unit; if the judging unit determines that the power supply device is not coupled to the load, outputting a timing handshake start signal; and if the controller receives the output of the judging unit, Timing handshake start signal, the controller adopts timing handshake signal communication mode to perform timing handshake communication with the load.

Therefore, according to the technical content of this case, the judgment unit and its control method, the power supply device, and its control method shown in the examples of this case can still comply with the Department of Energy (Department of Energy, DoE).

After referring to the following embodiments, those with ordinary knowledge in the technical field to which this case belongs can easily understand the basic spirit and other inventive objectives of this case, as well as the technical means and implementation patterns used in this case.

In order to make the description of this disclosure more detailed and complete, the following provides an illustrative description of the implementation mode and specific embodiments of this case; but this is not the only form of implementing or using the specific embodiments of this case. The embodiments include the features of a plurality of specific embodiments, as well as the method steps and their order for constructing and operating these specific embodiments. However, other specific embodiments can also be used to achieve the same or equal functions and sequence of steps.

Unless otherwise defined in this specification, the meanings of scientific and technical terms used herein are the same as those understood and used by those having ordinary knowledge in the technical field to which this case belongs. In addition, when not in conflict with the context, the singular noun used in this specification covers the plural form of the noun; and the plural noun used also covers the singular form of the noun.

In addition, as used in this document, "coupling" may mean that two or more elements make direct physical or electrical contact with each other, or indirectly make physical or electrical contact with each other, or that two or more elements operate mutually Or action.

FIG. 1 is a schematic circuit block diagram of a power supply device 100 according to an embodiment of the present invention. As shown, the power supply device 100 includes a power supply 110, a determination unit 120, a controller 130, a network transformer 140, a data input connector 150, and a power / data output connector 160. In terms of connection, the determining unit 120 is coupled between the power source 110 and the controller 130, and the network transformer 140 is coupled between the controller 130, the data input connector 150, and the power / data output connector 160. In addition, the load system 500 is pluggably coupled to the power supply device 100. In detail, the load 510 of the load system 500 is pluggably coupled to the power / data output connector 160 of the power supply device 100.

In order to comply with the US Department of Energy's (DoE) regulations for the power supply device 100 to consume power under no load (No Load Power), this case provides the power supply device 100 as shown in Figure 1. The related operation details The description is as follows.

In one embodiment, the determination unit 120 can be used to determine whether the power supply device 100 is coupled to the load 510. If the judging unit 120 determines that the power supply device 100 is not coupled to the load 510, it outputs a timing handshake activation signal to start the timing handshake signal communication mode of the power supply device 100, so as to perform timing handshake communication with the load 510. In another embodiment, if the determination unit 120 determines that the power supply device 100 is not coupled to the load 510, it outputs a timing handshake activation signal to the controller 130. Once the controller 130 receives the timing handshake activation output from the determination unit 120, For the signal, the controller 130 adopts a timing handshake signal communication mode to perform timing handshake communication with the load 510.

The definition of the so-called handshake signal communication mode is used to distinguish it from the full-time handshake communication mode. In detail, if the power supply device 100 is in the full-time handshake communication mode, even if the load 510 has been removed, the power supply device 100 will continue to try to perform handshake communication, which causes the power supply device 100 to continuously consume power. In another mode, if the load 510 has been removed, the power supply device 100 will change to perform handshake communication intermittently instead of continuously trying to perform handshake communication, thereby achieving the purpose of power saving. This type of communication is called a timed handshake communication mode.

In one embodiment, the timing handshake signal communication mode is performed by the controller 130 in the power supply device 100 at a preset time with the load 510. For example, the controller 130 in the power supply device 100 can perform handshake communication every 10 seconds within a fixed time period, such as 60 seconds. If the power consumption of the controller 130 is 100 mW (Watt), the average The power consumption of the controller 130 per second is 100 mW / 10 = 10 mW. In addition, since the power supply device 100 adopts a regular handshake communication mode, the power consumption of the controller 130 in the power supply device 100 during the time when no handshake communication is performed is only 80 mW. Therefore, the total power consumption of the controller 130 in the power supply device 100 in a fixed time period is the sum of 10mW and 80mW, that is, 90mW. This amount of power consumption is in accordance with the US Department of Energy DoE for the power supply device 100 under no load. The power consumption needs to be less than 100mW. In another embodiment, the power supply device 100 may be, but is not limited to, an Ethernet power supply device. Those skilled in the art can implement the electronic device using a handshake communication mode according to actual needs.

In yet another embodiment, the above-mentioned timing handshake signal communication mode is that the controller 130 in the power supply device 100 outputs a handshake channel communication signal at a predetermined time interval to perform handshake communication with the load 510. For example, the controller 130 in the power supply device 100 can output a timing handshake communication signal to the load 510 every 10 seconds within a fixed time period, such as 60 seconds, so as to perform timing handshake communication with the load 510 instead of Continuously output timing communication signal of handshake groove to try to communicate with handshake to achieve the purpose of energy saving.

In yet another embodiment, the determination unit 120 captures the output current of the power supply device 100 to determine whether the power supply device 100 is coupled to the load 510. If the determining unit 120 does not capture the output current of the power supply device 100, it means that the power supply device 100 is not coupled to the load 510 and therefore does not provide output current to the load 510. At this time, it is determined that the power supply device 100 is not coupled to the load 510.

In another embodiment, the determining unit 120 determines whether the controller 130 of the power supply device 100 repeatedly outputs the timing handshake signal to determine whether the power supply device 100 is coupled to the load 510. If the judging unit 120 judges that the power supply device 100 repeatedly outputs the timing handshaking groove communication number, it means that the power supply device 100 does not receive the signal returned by the load 510, which causes the power supply device 100 to output the timing handshaking groove signal again. The power supply device 100 is not coupled to the load 510.

FIG. 2 is a flowchart illustrating a control method 200 of a power supply device according to another embodiment of the present invention. The control method 200 of a power supply device includes the following steps:

Step 210: Determine whether the power supply device is coupled to the load by the determination unit; and

Step 220: If the judging unit determines that the power supply device is not coupled to the load, it outputs a timing handshake activation signal to start the timing handshake signal communication mode of the power supply device, so as to perform timing handshake communication with the load.

To make the control method 200 of the power supply device easier to understand, please refer to FIG. 1 and FIG. 2 together. In step 210, a determination unit 120 can be used to determine whether the power supply device 100 is coupled to the load 510. Subsequently, please refer to step 220. If the determining unit 120 determines that the power supply device 100 is not coupled to the load 510, it outputs a timing handshake activation signal to activate the timing handshake signal communication mode of the power supply device 100 to communicate with the load 510. Have regular handshake communication. In another embodiment, if the determination unit 120 determines that the power supply device 100 is not coupled to the load 510, it outputs a timing handshake activation signal to the controller 130. Once the controller 130 receives the timing handshake activation output from the determination unit 120, For the signal, the controller 130 adopts a timing handshake signal communication mode to perform timing handshake communication with the load 510.

It should be noted that the definition of the timing handshake signal communication mode has been explained in the foregoing, and will not be repeated here. The control method 200 of the power supply device in this case is based on a timing handshake signal communication mode. If the load 510 has been removed, the power supply device 100 will switch to a handshake communication in an intermittent manner instead of continuously trying Handshake and communication to achieve the purpose of power saving.

In step 220, the timing handshake signal communication mode of the power supply device is started, and the step of performing the handshake communication with the load can be implemented by the following methods: The controller 130 of the power supply device 100 is set at a preset time. Handshake communication with load 510.

In another embodiment, referring to step 220, the timing handshake signal communication mode of the power supply device is started. The step of performing the handshake communication with the load can be implemented in the following manner: by the controller 130 every other time Set the time to output the timing handshake groove communication number for handshake communication with the load 510.

In addition, in step 210, the step of determining whether the power supply device 100 is coupled to the load 510 by the determination unit 120 may be implemented in the following manner: The output current of the power supply device 100 is captured by the determination unit 120 to determine the power supply. Whether the supply device 100 is coupled to the load 510; if the determination unit 120 has not captured the output current of the power supply device 100, it is determined that the power supply device 100 is not coupled to the load 510.

In another embodiment, please refer to step 210. The step of judging whether the power supply device 100 is coupled to the load 510 by the judging unit 120 may be implemented in the following manner: judging whether the controller 130 repeats the output timing by the judging unit 120 The handshake channel communication number is used to determine whether the power supply device 100 is coupled to the load 510; if the determination unit 120 determines that the controller 130 repeatedly outputs the timing handshake channel communication number, it is determined that the power supply device 100 is not coupled to the load 510.

It can be known from the foregoing embodiments of the present application that the application of the present application has the following advantages. The embodiment of the present case provides a judgment unit and a control method thereof, a power supply device and a control method thereof, which can still comply with the US Department of Energy DoE's specifications even when the load has been removed.

Although the specific embodiments of the present case are disclosed in the above embodiments, they are not intended to limit the present case. Those who have ordinary knowledge in the technical field to which this case belongs can be carried out without departing from the principles and spirit of this case. Various changes and modifications, so the scope of protection in this case shall be defined by the scope of the accompanying patent application.

100‧‧‧ Power supply device

110‧‧‧Power

120‧‧‧ Judgment Unit

130‧‧‧controller

140‧‧‧ network transformer

150‧‧‧ data input connector

160‧‧‧Power / data output connector

200‧‧‧ Method

210 ~ 220‧‧‧step

500‧‧‧ load system

510‧‧‧load

In order to make the above and other objects, features, advantages, and embodiments of the present case more comprehensible, the description of the drawings is as follows: FIG. 1 is a schematic circuit block diagram of a power supply device according to an embodiment of the present case. FIG. 2 is a flowchart illustrating a control method of a power supply device according to another embodiment of the present invention. According to the usual operation method, the various features and components in the figure are not drawn to scale. The drawing method is to present the specific features and components related to the case in the best way. In addition, between different drawings, the same or similar element symbols are used to refer to similar elements / components.

Claims (20)

A judgment unit is applied to an Ethernet power supply device (Power over Ethernet), wherein the judgment unit is used to determine whether the Ethernet power supply device is coupled to a load; and if the judgment unit judges the power supply The supply device is not coupled to the load, and outputs a handshake activation signal at a certain time to start the communication mode of the handshake signal of the Ethernet power supply device, so as to communicate with the load at a regular time. The determination unit according to claim 1, wherein the timing handshake signal communication mode performs handshake communication with the load at a preset time. The judging unit according to claim 2, wherein the timing handshake signal communication mode outputs a handshake groove communication signal at a predetermined interval to perform handshake communication with the load. The determination unit according to claim 1, wherein the determination unit captures an output current of one of the Ethernet power supply devices to determine whether the Ethernet power supply device is coupled to the load, and if the determination is If the unit does not capture the output current of the Ethernet power supply device, it is determined that the Ethernet power supply device is not coupled to the load. The judging unit described in claim 1, wherein the judging unit judges whether the Ethernet power supply device repeatedly outputs a time-slot communication signal to determine whether the Ethernet power supply device is coupled to the load, Wherein, if the judging unit determines that the Ethernet power supply device repeatedly outputs the timing handshake signal, it determines that the Ethernet power supply device is not coupled to the load. A power supply device for supplying power to a load includes: a determination unit for determining whether the power supply device is coupled to the load, and if the determination unit determines that the power supply device is not coupled to the load, then Output a handshake start signal at a certain time; and a controller coupled to the judgment unit, wherein if the controller receives the timing handshake start signal output by the judgment unit, the controller adopts a time handshake signal communication mode To communicate with the load at regular intervals. The power supply device according to claim 6, wherein the controller performs handshake communication with the load at a preset time. The power supply device according to claim 7, wherein the controller outputs a handshaking groove communication signal at a certain time every predetermined time to communicate with the load at regular time. The power supply device according to claim 6, wherein the determination unit captures an output current of the power supply device to determine whether the power supply device is coupled to the load, and if the determination unit does not capture the power supply The output current of the supply device determines that the power supply device is not coupled to the load. The power supply device according to claim 6, wherein the determination unit determines whether the controller repeatedly outputs a time-slot communication signal to determine whether the power supply device is coupled to the load, and if the determination unit determines the control The device repeatedly outputs the timing handshake communication signal, and determines that the power supply device is not coupled to the load. A control method for a judgment unit applied to an Ethernet power supply device includes: determining whether the Ethernet power supply device is coupled to a load by a judgment unit; and if the judgment unit judges the power supply The supply device is not coupled to the load, and outputs a handshake activation signal at a certain time to start the communication mode of the handshake signal of the Ethernet power supply device, so as to communicate with the load at a regular time. The control method according to claim 11, wherein enabling the timing handshake signal communication mode of the Ethernet power supply device includes: activating the Ethernet power supply device to perform the load with the load at a preset time. Handshake communication. The control method according to claim 11, wherein activating the Ethernet power supply device to perform handshake communication with the load at the preset time includes: activating the Ethernet power supply device to communicate with the load every Set the time to output a handshake groove communication number to communicate with the load. The control method according to claim 12, wherein determining whether the Ethernet power supply device is coupled to the load by the determination unit includes: retrieving the power supply device of the Ethernet by the determination unit. An output current to determine whether the Ethernet power supply device is coupled to the load, and if the determination unit does not capture the output current of the Ethernet power supply device, determine the Ethernet The power supply device is not coupled to the load. The control method according to claim 12, wherein the determining unit to determine whether the Ethernet power supply device is coupled to the load includes: determining, by the determining unit, whether the Ethernet power supply device is duplicated. The communication signal is output at a certain time to determine whether the Ethernet power supply device is coupled to the load. If the judgment unit determines that the Ethernet power supply device repeatedly outputs the timing communication signal, it is determined The Ethernet power supply device is not coupled to the load. A control method for a power supply device, wherein the power supply device is used to supply power to a load, the power supply device includes a judgment unit and a controller, and the judgment unit is coupled to the controller, and includes: by the judgment A unit to determine whether the power supply device is coupled to the load; if the determination unit determines that the power supply device is not coupled to the load, output a handshake start signal at a certain time; and if a controller receives the output of the determination unit When the timing handshake start signal is used, the controller adopts a certain time handshake signal communication mode to perform timing handshake communication with the load. The control method according to claim 16, wherein the controller uses the timing handshake signal communication mode to perform timing handshake communication with the load, including: communicating with the load at a preset time by the controller Hold communication. The control method according to claim 16, wherein the controller adopts the timing handshake signal communication mode to perform timing handshake communication with the load includes: by the controller outputting a certain time handshake at the preset time Ditch communication number to communicate with the load. The control method according to claim 17, wherein determining whether the power supply device is coupled to the load by the determining unit includes: capturing an output current of one of the power supply devices by the determining unit to determine the power source Whether the power supply device is coupled to the load, and if the determination unit does not capture the output current of the power supply device, it is determined that the power supply device is not coupled to the load. The control method according to claim 17, wherein the determining unit to determine whether the power supply device is coupled to the load includes: determining, by the determining unit, whether the controller repeatedly outputs a handshaking channel communication number to It is determined whether the power supply device is coupled to the load, and if the determination unit determines that the controller repeatedly outputs the timing handshaking groove communication number, it is determined that the power supply device is not coupled to the load.