KR102613947B1 - Power supply apparatus for operating under specific temperature conditions, and power supply system - Google Patents

Abstract

A power supply device for supplying power to at least one target circuit is disclosed. This power supply device includes a converter that receives alternating current power and converts it into direct current power, a temperature sensor that senses the internal temperature of the power supply device, and a control unit that controls power supply to the power supply device through the converter. The control unit stops supplying power when the internal temperature detected through the temperature sensor is above the critical temperature.

Description

Power supply device and power supply system operating under specific temperature conditions { POWER SUPPLY APPARATUS FOR OPERATING UNDER SPECIFIC TEMPERATURE CONDITIONS, AND POWER SUPPLY SYSTEM }

The present disclosure relates to a power supply device, and more specifically, to a power supply device in which whether or not power is supplied varies depending on the internal temperature.

The structure of a dual or multiple power supply system including two or more conventional power supply devices can be broadly divided into two types. One is a structure that includes a switching-type power supply device, and the other is a structure that includes a always-connected power supply device.

In a power supply system that includes two or more switching power supplies, two or more power supplies capable of supplying power exceeding the power consumption of the load are connected in parallel, and only one power supply is controlled to operate. It can be. Here, when a power supply device that is in operation fails, the operation can be stopped and the next power supply device can be controlled to operate.

This method has the advantage of enabling a stable power supply, but a situation in which one power supply continues to bear all the power of the load, and other power supplies in an idle state may cause the currently operating power supply to fail. The downside is that it cannot perform any role until the end. Additionally, power supplies that remain idle for a long period of time may undergo natural aging and have an operating lifespan that is shorter than expected.

In a power supply system that includes two or more always-connected power supplies, two or more power supplies that can supply power exceeding the power consumption of the load are connected in parallel, and the power supply is distributed, with all connected power supplies operating. do.

This method has the advantage of enabling continuous operation without a power transfer procedure even if a failure occurs in an unspecified power supply device. However, if a short circuit occurs inside a failed power supply, there is a risk that all power supplies may be shut down at the same time. In addition, during normal operation, efficiency is reduced due to the voltage difference between power supply devices.

The temperature of general electrical and electronic components rises due to internal resistance during the flow of current. As the temperature rises, the internal resistance also rises, resulting in lower power efficiency.

Accordingly, the present disclosure provides a power supply device that can maintain life expectancy and maintain an efficient operating environment by automatically stopping power supply depending on the internal temperature.

Additionally, the present disclosure provides a power supply system including a plurality of power supply devices capable of supplying power alternately according to internal temperature.

The objects of the present disclosure are not limited to the purposes mentioned above, and other objects and advantages of the present disclosure that are not mentioned can be understood by the following description and will be more clearly understood by the examples of the present disclosure. Additionally, it will be readily apparent that the objects and advantages of the present disclosure can be realized by the means and combinations thereof indicated in the patent claims.

According to an embodiment of the present disclosure, a power supply device for supplying power to at least one target circuit includes a converter that receives alternating current power and converts it into direct current power, a temperature sensor that senses the internal temperature of the power supply device, and It includes a control unit that controls power supply of the power supply device through a converter. The control unit stops supplying power when the internal temperature detected through the temperature sensor is higher than the critical temperature.

The control unit may identify an operating time during which the power supply device can continuously supply power, and predict the lifespan of the power supply device according to the identified operating time.

At this time, when the power supply of the power supply device is stopped as a result of the internal temperature reaching the critical temperature, the control unit can identify the operating time during which the power supply device continuously supplied power until the power supply was stopped. You can.

Alternatively, the control unit identifies an increase rate of the internal temperature while the power supply supplies power, predicts a time when the internal temperature reaches the critical temperature according to the increase rate, and predicts the predicted time point. The operation time of the power supply device calculated according to can also be identified.

In a power supply system including a plurality of power supply devices according to an embodiment of the present disclosure, the internal temperature of each of the plurality of power supply devices is monitored in real time, and the internal temperature of the plurality of power supply devices is the threshold temperature. At least one power supply device supplies power to the target circuit.

At this time, the plurality of power supply devices may include a first power supply device and a second power supply device. In this case, the first power supply supplies power to the target circuit when the internal temperature of the first power supply is below the threshold temperature, and the internal temperature of the first power supply is above the threshold temperature. In this state, power supply may be interrupted. And, the second power supply device, when the internal temperature of the first power supply device is above the threshold temperature, provides power to the target circuit on the premise that the internal temperature of the second power supply device is below the threshold temperature. can be supplied.

However, if the internal temperature of the first power supply device and the internal temperature of the second power supply device are both equal to or higher than the threshold temperature, the power supply having a lower internal temperature among the first power supply device and the second power supply device A supply device may supply power to the target circuit.

Meanwhile, the lifespan of each of the plurality of power supply devices can be predicted according to the operation time during which power can be continuously supplied until the internal temperature of each power supply device reaches the critical temperature. In this case, the power supply system sets the priority of the plurality of power supply devices based on the predicted lifespan, and performs power supply through one power supply device among the plurality of power supply devices. When the internal temperature of the power supply device exceeds the critical temperature, power can be supplied through the power supply device of the next priority according to the priority.

Meanwhile, the plurality of power supply devices may include a first power supply device, a second power supply device, and a third power supply device. Here, if the priority is set in the order of the first power supply, the second power supply, and the third power supply, the power supply system initially supplies power through the first power supply. When the internal temperature of the first power supply device becomes higher than the critical temperature, power is supplied through the second power supply device, and when the internal temperature of the second power supply device becomes higher than the critical temperature, the power supply is performed through the second power supply device. Power may be supplied through a third power supply device. Here, when the average operating time of the first power supply, the second power supply, and the third power supply is less than a certain time, the power supply system may set the threshold temperature to increase.

The power supply device according to the present disclosure ensures a long lifespan and increases the stability of the power supply environment by stopping power supply as the internal temperature rises.

According to the present disclosure, a power supply system including a plurality of power supply devices performs power supply by selectively utilizing each power supply device according to the internal temperature of each power supply device, thereby securing an idle state of each power supply device. There is a life preservation effect, and power supply to the target circuit can be performed without disruption.

1 is a block diagram for explaining the configuration of a power supply device according to an embodiment of the present disclosure;
2 is a block diagram for explaining the detailed configuration of a power supply device according to an embodiment of the present disclosure;
3A is a block diagram illustrating a power supply system including two power supplies according to an embodiment of the present disclosure;
3B is a block diagram illustrating a power supply system including three power supplies according to an embodiment of the present disclosure;
3C is a block diagram illustrating a power supply system including four or more power supplies according to an embodiment of the present disclosure;
4 is a diagram illustrating the operation of a control device for integrated control of a plurality of power supply systems for supplying power to different loads according to an embodiment of the present disclosure; and
FIG. 5 is a diagram for explaining the configuration and operation of each of a plurality of power supply systems that supply power to different display units according to an embodiment of the present disclosure.

Before explaining the present disclosure in detail, the description method of the present specification and drawings will be explained.

First, the terms used in the specification and claims are general terms selected in consideration of their functions in various embodiments of the present disclosure. However, these terms are not intended to reflect the intent of a technician working in the relevant technical field, legal or technical interpretation, and It may vary depending on the emergence of new technologies, etc. Additionally, some terms are arbitrarily selected by the applicant. These terms may be interpreted as defined in this specification, and if there is no specific term definition, they may be interpreted based on the overall content of this specification and common technical knowledge in the relevant technical field.

In addition, the same reference numbers or symbols in each drawing attached to this specification indicate parts or components that perform substantially the same function. For convenience of explanation and understanding, the same reference numerals or symbols are used in different embodiments. That is, even if all components having the same reference number are shown in multiple drawings, the multiple drawings do not represent one embodiment.

Additionally, in this specification and claims, terms including ordinal numbers such as “first”, “second”, etc. may be used to distinguish between components. These ordinal numbers are used to distinguish identical or similar components from each other, and the meaning of the term should not be interpreted limitedly due to the use of these ordinal numbers. For example, the order of use or arrangement of components combined with these ordinal numbers should not be limited by the number. If necessary, each ordinal number may be used interchangeably.

In this specification, singular expressions include plural expressions, unless the context clearly dictates otherwise. In this application, terms such as “comprise” or “consist of” are intended to designate the presence of features, numbers, steps, operations, components, parts, or combinations thereof described in the specification, but are intended to indicate the presence of one or more other It should be understood that this does not exclude in advance the presence or addition of features, numbers, steps, operations, components, parts, or combinations thereof.

In embodiments of the present disclosure, terms such as “module”, “unit”, “part”, etc. are terms to refer to components that perform at least one function or operation, and these components are either hardware or software. It may be implemented or may be implemented through a combination of hardware and software. In addition, a plurality of "modules", "units", "parts", etc. are integrated into at least one module or chip, except in cases where each needs to be implemented with individual specific hardware, and is integrated into at least one processor. It can be implemented as:

Additionally, in an embodiment of the present disclosure, when a part is connected to another part, this includes not only direct connection but also indirect connection through other media. In addition, the meaning that a part includes a certain component does not mean that other components are excluded, but that it may further include other components, unless specifically stated to the contrary.

1 is a block diagram for explaining the configuration of a power supply device according to an embodiment of the present disclosure.

Referring to FIG. 1, the power supply device 100 may include a converter 110, a temperature sensor 120, a control unit 130, etc.

The power supply device 100 is a device or device for supplying power to at least one target circuit. For example, it may convert input AC power into direct current power and supply it to the target circuit.

The power supply device 100 may correspond to a Switching Mode Power Supply Unit (SMPS unit), and in this case, the power supply device 100 may supply power based on a switching operation within the circuit.

The target circuit may constitute at least part of various products that operate based on power, such as displays, speakers, and sensors.

As an example, the power supply device 100 may supply power to one of a plurality of display units forming a display wall, or may supply power to one of a plurality of display modules forming a display unit.

The converter 110 is configured to receive alternating current power and convert it into direct current power. Specifically, the converter 110 may correspond to an AC/DC converter.

The temperature sensor 120 is a component for sensing the internal temperature of the power supply device 100 and may include various types of sensors such as a resistance temperature sensor, thermistor, liquid thermometer, bimetal temperature sensor, and infrared temperature sensor.

The temperature sensor 120 is installed inside the power supply device 100, and may be specifically attached to or installed close to at least one of the converter 110, the control unit 130, and the output unit.

The control unit 130 is a component for controlling the overall operation of the power supply device 100 and may include at least one integrated circuit, and in some cases, may include at least one processor.

The control unit 130 can control power supply through the converter. However, the control unit 130 can supply power only when the internal temperature detected through the temperature sensor 120 is below the critical temperature.

Here, the critical temperature may be preset, but may be later changed/updated according to the operation of the control unit 130 or user input.

Specifically, if the internal temperature exceeds the critical temperature while power is being supplied, the control unit 130 may stop supplying power.

Thereafter, the control unit 130 may resume supplying power when the internal temperature falls below the critical temperature again. Specifically, when the internal temperature falls below a specific temperature (start temperature) lower than the above-described critical temperature, the control unit 130 may restart power supply.

Alternatively, when the power supply of the power supply device 100 is interrupted and the power supply of other power supply devices connected to the power supply device 100 begins to be supplied, the control unit 130 determines that the power supply of the other power supply device is interrupted ( Power supply may be started again assuming that the internal temperature of the other power supply device becomes above the critical temperature. Here, the power supply device 100 and the other power supply devices described above may form a power supply system for supplying power to the same target circuit. Various related embodiments will be described later with reference to FIGS. 3A to 3C.

Meanwhile, in one embodiment, the control unit 130 may identify an operating time during which the power supply device 100 can continuously supply power.

The operation time refers to the time from when the power supply device 100 starts supplying power until it reaches the critical temperature. As an example, the control unit 130 may identify the time taken for the internal temperature of the power supply device 100 to reach a critical temperature from a specific temperature (start temperature) as the operation time of the power supply device 100. It is not limited to this.

For example, when the power supply to the power supply device 100 is stopped as a result of the internal temperature reaching a critical temperature, the control unit 130 operates by allowing the power supply device 100 to continuously supply power until the power supply is stopped. Time can be identified.

As another example, the control unit 130 may identify the rate of increase in internal temperature while the power supply device 100 supplies power. Here, the control unit 130 may obtain at least one constant or function (e.g., a linear function or a quadratic function, etc.) that represents the rate of increase of the internal temperature over time based on the internal temperature at each of a plurality of time points. there is. At this time, the control unit 130 can predict when the internal temperature reaches the critical temperature according to the increase rate. Here, the control unit 130 can identify the operation time of the power supply device 100 calculated according to the predicted time point.

If the operation time is identified according to at least one of the above-described embodiments, the control unit 130 may predict the lifespan of the power supply device 100 based on the identified operation time.

At this time, the controller 130 can predict the lifespan of the power supply device 100 to be shorter as the identified operation time is shorter.

Additionally, the control unit 130 may predict the lifespan of the power supply device 100 based on the average operating time of the power supply device 100. The average operation time is the average value of the operation time over a certain period of time.

Specifically, when the process including starting power supply and stopping power supply (: critical temperature reached) is repeated several times, the control unit 130 identifies the operation time of the power supply device 100 each time, while maintaining the most recent The average operating time of the power supply device 100 over a certain period of time can be identified. At this time, the shorter the average operation time of the electronic device 100, the shorter the lifespan of the power supply device 100 can be predicted.

As another example, the control unit 130 may predict the lifespan of the power supply device 100 by comparing a preset average operation time and the actual operation time. Here, the preset average operation time may be set at the time of shipment. The preset average operating time may be set differently depending on the internal temperature at the time the power supply device 100 starts supplying power. For example, the preset average operating time is set to a first value when power supply starts at 15°C, is set to a second value when power supply starts at 16°C, and at 17°C. It may be set to a third value for when power supply starts.

Here, the control unit 130 can predict the lifespan based on the difference between the operation time of the power supply device 100 and the preset average operation time. At this time, the larger the difference, the shorter the lifespan can be predicted.

For example, when the power supply of the power supply device 100 is started while the internal temperature of the power supply device 100 is 15°C, the control unit 130 determines that the internal temperature of the power supply device 100 reaches the critical temperature. The lifespan can be predicted by comparing the operation time taken to do this with the above-mentioned first value (: preset average operation time).

At this time, since the lifespan is predicted separately for each internal temperature value at the time power supply starts, one lifespan may be derived by calculating the average of each lifespan predicted based on different internal temperature values. Alternatively, an average of the calculated lifespan may be calculated based on each of a plurality of operation times identified during a recent certain period (e.g., one month).

Meanwhile, Figure 2 is a block diagram for explaining the detailed configuration of a power supply device according to an embodiment of the present disclosure.

Referring to FIG. 2, the power supply device 100 includes a converter 110, a temperature sensor 120, and a control unit 130, as well as a voltage sensor 140, a current sensor 150, an output unit 160, and a power factor correction unit. (170), etc. may be included.

The voltage sensor 140 is configured to measure the voltage of input AC power or output DC power. The voltage sensor 140 may include, for example, a partial circuit including a plurality of resistance elements, but is not limited thereto.

The control unit 130 can measure the voltage through the voltage sensor 140 while power is supplied, and if the measured voltage is outside the normal range, it can be identified as a failure. If a failure occurs, the control unit 130 may stop supplying power.

The current sensor 150 is configured to measure the current of input AC power or output DC power. The current sensor 150 may be implemented in various ways, such as a resistance detection type including at least one resistance element and a magnetic field detection type that detects current through the magnitude of a magnetic field.

The control unit 130 can measure the voltage through the current sensor 150 while power is supplied, and if the measured current is outside the normal range, it can be identified as a failure. If a failure occurs, the control unit 130 may stop supplying power.

The output unit 160 is a circuit for outputting direct current power converted through the converter 110, and may include at least one switching element. As an example, the control unit 130 may control ON/OFF of power supply through a switching element, but is not limited to this.

The power factor correction unit 170 is configured to bring the power factor corresponding to the phase difference between voltage and current close to 0. Through the power factor correction unit 170, the efficiency of the power supply device 100 and the efficiency of the load that actually receives power can be increased, and the gap between the actual power consumption of the load and the measured power consumption can be reduced. To this end, the power factor correction unit 170 may include a power factor correction circuit including a switch, a diode, an inductor, etc. Here, a single method, an interleaved method, etc. are possible depending on the number of switches, but are not limited thereto.

Meanwhile, according to an embodiment of the present disclosure, a power supply system including a plurality of power supply devices may be implemented. The power supply system is configured to supply power to at least one target circuit, and can supply power by selectively using a plurality of power supply devices one by one.

Specifically, the internal temperature of each of the plurality of power supply devices is monitored in real time, and at least one power supply device whose internal temperature is less than the critical temperature among the plurality of power supply devices may supply power to the target circuit. At this time, monitoring of the internal temperature of each power supply device may be performed through a control unit included in each power supply device, and one integrated control unit included in the power supply system monitors the internal temperature of each of the plurality of power supply devices. You may. Here, the integrated control unit may be composed of an integrated circuit for controlling each power supply system, or may include at least one processor.

Relatedly, FIG. 3A is a block diagram illustrating a power supply system including two power supply devices according to an embodiment of the present disclosure.

Referring to FIG. 3A, the power supply system 10 may include a first power supply device 100-1 and a second power supply device 100-2.

Here, the first power supply device 100-1 may supply power to the target circuit (Load) while the internal temperature of the first power supply device 100-1 is below the critical temperature.

However, if the internal temperature of the first power supply device 100-1 exceeds the critical temperature, power supply to the first power supply device 100-1 may be stopped.

In this way, when the internal temperature of the first power supply device 100-1 is above the critical temperature, the second power supply device 100-2 is operated so that the internal temperature of the second power supply device 100-2 is below the critical temperature. Assuming that this is the case, power can be supplied to the target circuit.

Meanwhile, when the internal temperature of the first power supply device 100-1 and the internal temperature of the second power supply device 100-2 are both above the critical temperature, the first power supply device 100-1 and the second power supply device 100-2 Among the power supply devices 100-2, the power supply device with a lower internal temperature may supply power to the target circuit.

To this end, the first power supply device 100-1 and the second power supply device 100-2 may share data about the internal temperature with each other. In this case, the control unit of the first power supply device 100-1 and the control unit of the second power supply device 100-2 may be connected through at least one wired port or data line, but the connection is not limited to this.

Alternatively, the integrated control unit included in the power supply system 10 is connected to the temperature sensor of each power supply device 100-1 and 2 to monitor the internal temperature of each, and turns on/off power of at least one power supply device. can also be controlled.

As described above, if a situation occurs where all power supply devices included in the power supply system have a temperature above the critical temperature, the integrated control unit of the power supply system (or the control unit of at least one power supply device) sends a load to the manager terminal or manager server. You can request reduction of (target circuit) or addition of power supply.

Meanwhile, each of the plurality of power supplies included in the power supply system can predict the lifespan of each power supply according to the operating time that can continuously supply power until the internal temperature of each power supply reaches a critical temperature. You can.

At this time, the power supply system may set the priorities of the plurality of power supply devices based on the predicted lifespan. As an example, the longer the predicted lifespan, the higher the priority may be.

While power is being supplied through one power supply among multiple power supplies with set priorities, if the internal temperature of the power supply exceeds the threshold temperature, power is supplied through the power supply with the next priority. It can be.

Relatedly, FIG. 3B is a block diagram illustrating a power supply system including three power supply devices according to an embodiment of the present disclosure.

Referring to Figure 3b, the power supply system 10 may include a first power supply device 100-1, a second power supply device 100-2, and a third power supply device 100-3. there is.

At this time, assume a situation in which the priorities are set in the order of the first power supply device 100-1, the second power supply device 100-2, and the third power supply device 100-3.

In this case, the power supply system 10 initially supplies power through the first power supply device 100-1, and when the internal temperature of the first power supply device becomes above the critical temperature, the power supply system 10 supplies power through the second power supply device 100-1. Power can be supplied through (100-2), and when the internal temperature of the second power supply (100-2) exceeds the critical temperature, power can be supplied through the third power supply (100-3). there is. Likewise, when the internal temperature of the third power supply device 100-3 exceeds the critical temperature, power can be supplied again through the first power supply device 100-1.

Additionally, the power supply system 10 may monitor the average operating time of the plurality of power supply devices 100-1, 2, and 3 described above.

Here, when the average operating time of the first power supply device 100-1, the second power supply device 100-2, and the third power supply device 100-3 is less than the first threshold time, the power supply system (10) can be set to increase the critical temperature. Here, the critical temperature can be increased by a certain (preset) amount at a time. As a result, a situation in which the operational switching period of each power supply device becomes too short can be prevented.

On the other hand, the average operating time of the first power supply 100-1, the second power supply 100-2, and the third power supply 100-3 is the second critical time (> first critical time). ) or more, the power supply system 10 may set the critical temperature to decrease. Here, the critical temperature can be reduced by a certain (preset) amount at a time. As a result, a situation where the operation switching cycle of each power supply device becomes too long can be prevented.

This increase/decrease setting of the critical temperature may be performed through the integrated control unit of the power supply system 10, or may be performed through the control unit of each power supply device.

Additionally, in one embodiment, the integrated control unit may diagnose a failure of at least one power supply device based on the history of changes in the above-described critical temperature. The history of changes in the critical temperature refers to the history of the critical temperature increasing or decreasing according to the average operating time of the above-described power supply devices.

Here, if it is confirmed that the critical temperature has increased continuously (without decreasing) more than a certain number of times (e.g. 4 times) according to the history of the critical temperature change setting, the integrated control unit controls each power supply that caused the increase in the critical temperature. The average operation time can be identified. At this time, the integrated control unit can identify the average operating time of each power supply device each time the critical temperature is set to increase.

Here, the integrated control unit, in the process of continuously increasing the critical temperature by the above-mentioned number of times, at least one device whose average operating time was less than the first critical time for more than a certain percentage (ex. 75%: 3 out of 4 times) By identifying the power supply, it can be determined that the power supply needs to be replaced.

On the other hand, if it is confirmed that the critical temperature has decreased continuously (without increasing) more than a certain number of times (ex. 4 times) according to the history of the critical temperature change setting, the integrated control unit controls each power supply that caused the critical temperature decrease. The average operation time can be identified. At this time, the integrated control unit can identify the average operating time of each power supply device whenever the critical temperature is set to decrease.

Here, the integrated control unit, in the process of continuously reducing the critical temperature by the above-mentioned number of times, at least one device whose average operating time was more than the second critical time for more than a certain percentage (ex. 75%: 3 out of 4 times) You can identify the power supply and increase the priority of that power supply.

Meanwhile, the power supply system 10 of the present disclosure may include four or more power supply devices as shown in FIG. 3C, and it is possible to implement an operation algorithm according to the above-described embodiments.

Meanwhile, power supply may be performed by gathering several systems (unit systems) described through FIGS. 3A to 3C.

In relation to this, FIG. 4 is a diagram for explaining the operation of a control device that integrates and controls a plurality of power supply systems for supplying power to different loads according to an embodiment of the present disclosure.

Referring to FIG. 4, the control device 400 can monitor and control a plurality of power supply systems (ex. 10-1, 2, ..., n) that supply power to different target circuits.

The control device 400 may be implemented as at least one computer or server, and may be connected to each power supply system by wire or wirelessly. The control device 400 may receive data about the operation status (e.g., power supply, idle), predicted lifespan, average operation time, failure status, etc. of each power supply device from each power supply system.

Each power supply system (10-1, 2, ..., n) can internally supply power to the target circuit (Load) by changing the power supply device that supplies power according to the internal temperature of each power supply device. .

In relation to this, FIG. 5 is a diagram for explaining the configuration and operation of each of a plurality of power supply systems that supply power to different display units according to an embodiment of the present disclosure.

Each display unit 510, 520, 530, ... shown in FIG. 5 may correspond to each unit constituting one display wall. Each display unit may be composed of a plurality of display modules (ex. square), and may be implemented in a vertically long form as shown in FIG. 5, but of course, it may also be implemented in a horizontally long form.

Each display unit 510, 520, 530, ... shown in FIG. 5 corresponds to each Load (load, target circuit) shown in FIG. 4.

Referring to FIG. 5, the power supply devices 100-1 and 2 constitute a power supply system for supplying power to the display unit 510, and can supply power alternately according to each internal temperature. there is. Likewise, the power supply devices 100-a and b constitute a power supply system for supplying power to the display unit 520, and may alternately supply power according to each internal temperature.

Meanwhile, the various embodiments described above may be implemented in a recording medium that can be read by a computer or similar device using software, hardware, or a combination thereof.

According to hardware implementation, the embodiments described in this disclosure include application specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), and field programmable gate arrays (FPGAs). ), processor, controller, micro-controllers, microprocessor, and other electrical units for performing functions.

In some cases, embodiments described herein may be implemented in the processor itself. According to software implementation, embodiments such as procedures and functions described in this specification may be implemented as separate software modules. Each of the software modules described above may perform one or more functions and operations described herein.

Meanwhile, computer instructions for performing processing operations in electronic devices such as power supply devices, power supply systems, control neglect, etc. according to various embodiments of the present disclosure described above are non-transitory computer readable media (non- It can be stored on a transitory computer-readable medium. Computer instructions stored in such a non-transitory computer-readable medium, when executed by a processor of a specific device, cause the specific device to perform processing operations of the electronic device according to the various embodiments described above.

A non-transitory readable medium refers to a medium that stores data semi-permanently and can be read by a device, rather than a medium that stores data for a short period of time, such as registers, caches, and memories. Specifically, the various applications or programs described above may be stored and provided on non-transitory readable media such as CD, DVD, hard disk, Blu-ray disk, USB, memory card, ROM, etc.

In addition, although preferred embodiments of the present invention have been shown and described above, the present invention is not limited to the specific embodiments described above, and the technical field to which the invention pertains without departing from the gist of the present invention as claimed in the claims. Of course, various modifications can be made by those skilled in the art, and these modifications should not be understood individually from the technical idea or perspective of the present invention.

100: power supply 10: power supply system

Claims (9)

In a power supply device for supplying power to at least one target circuit,
A converter that receives alternating current power and converts it into direct current power;
A temperature sensor that senses the internal temperature of the power supply device; and
It includes a control unit that controls power supply of the power supply device through the converter,
The control unit,
If the internal temperature detected through the temperature sensor is above the threshold temperature, stop supplying power, and identify an operating time during which the power supply device can continuously supply power,
predict the lifespan of the power supply according to the identified operation time,
The control unit,
identify the rate of increase of the temperature while the power supply supplies power;
Predicting when the internal temperature reaches the critical temperature according to the increase rate,
A power supply device that identifies an operation time of the power supply device calculated according to the predicted time point. delete According to paragraph 1,
The control unit,
When power supply of the power supply device is interrupted as a result of the internal temperature reaching the threshold temperature, the power supply device identifies the operating time during which the power supply device continuously supplied power before power supply was interrupted. delete In a power supply system including a plurality of power supply devices,
The internal temperature of each of the plurality of power supply devices is monitored in real time, and at least one power supply device whose internal temperature is below a critical temperature among the plurality of power supply devices supplies power to the target circuit,
The plurality of power supplies includes a first power supply and a second power supply,
The power supply system is,
Predicting the lifespan of each power supply device according to the operating time that can continuously supply power until the internal temperature of each power supply device reaches the critical temperature,
The power supply system is,
identify the rate of increase in the internal temperature of the first power supply while the first power supply supplies power;
Predicting when the internal temperature reaches the critical temperature according to the increase rate,
A power supply system that identifies the operation time of the first power supply device calculated according to the predicted time point. According to clause 5,
The first power supply device,
Supplying power to the target circuit while the internal temperature of the first power supply is below the critical temperature,
When the internal temperature of the first power supply device is above the threshold temperature, stop supplying power,
The second power supply device,
A power supply system that supplies power to the target circuit when the internal temperature of the first power supply device is greater than or equal to the critical temperature, on the premise that the internal temperature of the second power supply device is less than the critical temperature. According to clause 6,
If the internal temperature of the first power supply device and the internal temperature of the second power supply device are both greater than or equal to the threshold temperature, the power supply device having a lower internal temperature among the first power supply device and the second power supply device A power supply system that supplies power to the target circuit. According to clause 5,
The power supply system is,
Setting priorities of the plurality of power supplies based on the predicted lifespan,
While power is being supplied through one of the plurality of power supply devices, if the internal temperature of the one power supply device exceeds the threshold temperature, power is supplied through the power supply device of the next priority according to the priority. A power supply system that performs supply. According to clause 8,
The plurality of power supplies,
comprising a first power supply, a second power supply, and a third power supply;
The power supply system is,
When the priority is set in the order of the first power supply, the second power supply, and the third power supply, power is initially supplied through the first power supply, and the first power supply is When the internal temperature of the second power supply is above the critical temperature, power is supplied through the second power supply, and when the internal temperature of the second power supply is above the critical temperature, power is supplied through the third power supply. Do this,
The power supply system is,
A power supply system that sets the threshold temperature to increase when the average operating time of the first power supply, the second power supply, and the third power supply is less than a certain time.