KR101443316B1 - Power supply apparatus with management function - Google Patents

Power supply apparatus with management function Download PDF

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Publication number
KR101443316B1
KR101443316B1 KR1020140024320A KR20140024320A KR101443316B1 KR 101443316 B1 KR101443316 B1 KR 101443316B1 KR 1020140024320 A KR1020140024320 A KR 1020140024320A KR 20140024320 A KR20140024320 A KR 20140024320A KR 101443316 B1 KR101443316 B1 KR 101443316B1
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South Korea
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power
power supply
unit
output
pwm
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KR1020140024320A
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Korean (ko)
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방창용
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방창용
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Priority to PCT/KR2015/001478 priority patent/WO2015130044A1/en

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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M3/00—Conversion of dc power input into dc power output
    • H02M3/22—Conversion of dc power input into dc power output with intermediate conversion into ac
    • H02M3/24—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters
    • H02M3/28—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac
    • H02M3/325—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal
    • H02M3/335—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Dc-Dc Converters (AREA)

Abstract

The present invention relates to a power supply apparatus having a management function for analyzing a power output situation in a power supply apparatus such as an SMPS (Switching Mode Power Supply), detecting a power internal state, and controlling a power inside according to set information. A PWM controller for generating a pulse width modulation signal for converting a commercial AC power inputted based on a detection result of detecting an internal state into a DC power; A power switching unit for switching an AC power input according to a pulse width modulation signal generated by the PWM controller; A power supply control unit for generating a power control signal according to a detection result of detecting an internal state of the power supply unit, converting the pulse width modulation signal into digital data, calculating a power amount based on the converted digital data, And a power manager for controlling the power output according to an event setting value set through an external interface.

Figure R1020140024320

Description

[0001] The present invention relates to a power supply apparatus with a management function,

The present invention relates to a power supply having a built-in management function, and more particularly, to a power supply apparatus such as a Switching Mode Power Supply (SMPS), which analyzes a power output situation, To a power supply unit having a management function for controlling the inside of the power supply according to the control signal.

Most electrical products, such as computers, monitors, televisions, such as desktop computers and portable computers, are essentially equipped with a power supply, which uses SMPS as the main power supply.

SMPS is a modular power supply that converts AC (Alternating Current) electricity supplied from commercial power source to various devices such as computer, communication device, and home appliance. It uses high-speed power semiconductor to control intermittence at high frequency and obtain stable DC voltage through rectification and smoothing circuit. DC power supplies are largely divided into linear type and switch mode type. In recent years, switch mode type, which is light weight and suitable for miniaturization, has become a main power supply device of personal computers (PC) and household electric appliances.

Such a power supply can respond to surge voltage or overvoltage / overcurrent, but it is not possible to analyze the power output situation on its own or to monitor the power internal state.

A conventional technique for a power supply device is disclosed in Patent Document 1, Patent Registration No. 10-0874862 (registered on December 12, 2008).

The prior art disclosed in Patent Document 1 uses a power supply unit including a noise filter unit, a bridge rectifier, a PWM switching unit, an output rectifier, a PWM control controller, a remote control signal receiving unit, a current supply unit, , A set-top box DVD, or the like, which is capable of being driven by using a remote controller, receives a signal transmitted from the remote controller and drives the apparatus even when the standby power source is removed.

Patent Registration No. 10-0874862 (Registered on December 12, 2008)

However, the conventional power supply device as described above can prevent the damage of the rear end device due to the overvoltage / overcurrent due to the power shutdown function for the surge voltage or the overvoltage / overcurrent. However, It was impossible to monitor the internal state.

In addition, the prior art and general power supply devices have a disadvantage in that the user can not manage the power supply unit according to the user setting and the user interface is not available for the user to manage the power supply unit.

It is an object of the present invention to provide a power supply apparatus, such as a switching mode power supply (SMPS), for analyzing a power output situation, And to provide a power supply unit having a management function for detecting a state.

It is another object of the present invention to provide a power supply apparatus having a management function for controlling power inside according to set information.

It is still another object of the present invention to provide a power supply apparatus having a management function capable of providing an interface function for receiving an event through a user interface.

According to an aspect of the present invention, there is provided a power supply device including a management function, the power supply device including: a pulse width modulating signal for converting a commercial AC power input to a DC power source, PWM controller that occurs; A power switching unit for switching an AC power input according to a pulse width modulation signal generated by the PWM controller; A power supply control unit for generating a power control signal according to a detection result of detecting an internal state of the power supply unit, converting the pulse width modulation signal into digital data, calculating a power amount based on the converted digital data, And a power manager for controlling power output according to an event setting value set through an external interface.

The power manager controls the power input terminal, the front end of the power switching unit, the front end of the transformer, the front end of the power output circuit, and the power of the rear end simultaneously or selectively.

The power manager includes a PWM signal sampling unit for converting the PWM signal output from the PWM controller into a digital signal and processing the digital signal to output a PWM count value and a power measurement count value.

The PWM signal sampling unit may include a PWM signal counter for counting an input PWM signal and outputting a PWM count value; A fixed frequency oscillator for generating a predetermined fixed frequency for power measurement; A logic operator for logically operating the input PWM signal and the fixed frequency and outputting the result; A reference time oscillator for generating a reference time for sampling; And a power measurement counter for counting pulses output from the logical calculator based on a reference time generated by the reference time oscillator and outputting the result as a power measurement count value.

The power manager may further include a power calculation unit for dividing the power measurement count value and the PWM count value output from the PWM signal sampling unit and outputting the result as a power amount.

The power manager includes an internal input / output control unit for interfacing each sensing value sensed inside the power supply unit and interfacing a power supply output control signal. And a power monitoring and controlling unit for generating a power control signal, an alarm signal or event information according to the amount of power calculated by the power calculation unit, and controlling transmission of information to be transmitted to the user.

The power manager may further include a user interface manager for receiving a setup value for power management from a user and transmitting the setup value to the power monitoring and control unit and for interfacing output information output from the power monitor to the user side .

The power manager may further include an external input / output manager for transmitting data input from the outside to the power monitoring and control unit and transmitting event information and control information output from the power amount monitoring and control unit to an external device .

According to the present invention, there is an advantage that a power supply state such as a switching mode power supply (SMPS) can be analyzed and a power internal state can be detected.

In addition, according to the present invention, it is possible to control the inside of the power according to setting information set from the outside, thereby allowing the user to manage the power of the power supply device.

In addition, according to the present invention, it is possible to provide an interface function for receiving an event through a user interface.

FIG. 1 is a configuration diagram of a power supply apparatus having a management function according to a preferred embodiment of the present invention,
FIG. 2 is a block diagram of an embodiment of the PWM manager of FIG. 1;
Figure 3 is a timing diagram of the PWM manager of Figure 1;

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a power supply apparatus with a management function according to a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is a configuration diagram of a power supply apparatus having a management function according to a preferred embodiment of the present invention.

A power supply 100 having a management function according to a preferred embodiment of the present invention includes a power input circuit 101, a power switching unit 102, a transformer 103, a power output circuit 104, a PWM controller 105 ), And a power manager 106.

The power input circuit 101 serves to receive and output a commercially available AC power AC supplied from the outside.

The PWM controller 105 generates a pulse width modulation signal (PWM signal) for converting the commercial AC power inputted into the DC power supply based on the detection result of sensing the internal state.

The power supply switching unit 102 switches the AC power input according to the pulse width modulation signal generated by the PWM controller 105. [

The transformer 103 functions to reduce the input AC voltage and the power output circuit 104 converts the reduced AC voltage into a predetermined DC voltage and rectifies the DC voltage to output the DC voltage DC.

The power manager 106 generates a power control signal according to the detection result of detecting the power supply internal state, converts the pulse width modulated signal into digital data, calculates a power amount based on the converted digital data, , The power output is controlled according to the calculated power amount, the detection result of detecting the internal state, and the event setting value set through the external interface.

It is preferable that the power manager 106 simultaneously or selectively controls a power input terminal, a front end of the power switching unit 102, a front end of the transformer 103, a front end of the power output circuit 104, and a rear end power supply.

The power manager 106 includes a PWM signal sampling unit 107 that converts the PWM signal output from the PWM controller 105 into a digital signal, processes the converted digital signal, and outputs a PWM count value and a power measurement count value, . Here, the PWM signal sampling unit 107 is implemented in a plurality of units corresponding to multiple outputs at the time of multiple output, and each configuration and operation are the same. Therefore, only one PWM signal sampling unit will be described below.

As shown in FIG. 2, the PWM signal sampling unit 107 includes a PWM signal counter 107a for counting input PWM signals and outputting a PWM count value; A fixed frequency oscillator 107c for generating a predetermined fixed frequency for power measurement; A logic operator 107b for logically operating the input PWM signal and the fixed frequency and outputting the result; A reference time oscillator 107d for generating a reference time for sampling; And a power measurement counter 107e for counting the pulses output from the logical calculator 107b based on the reference time generated by the reference time oscillator 107d and outputting the result as a power measurement count value.

The power manager 106 includes a power calculation unit 108 for dividing the power measurement count value and the PWM count value output from the PWM signal sampling unit 107 and outputting the result as a power amount; An internal input / output control unit (109) for interfacing each sensing value sensed inside the power supply unit (100) and interfacing a power supply output control signal; And a power amount monitoring and control unit 110 for generating a power control signal, an alarm signal, or event information according to the amount of power calculated by the power amount calculation unit 108, and controlling transmission of information to be transmitted to the user.

The power manager 106 receives a set value for power management from a user and transfers the set value to the power amount monitoring and control unit 110. The power amount monitoring and control unit 110 outputs output information output from the power amount monitoring and control unit 110 to the user A user interface management unit 114; And an external input / output management unit 113 for transferring external input data to the power monitoring and control unit 110 and transmitting event information and control information output from the power amount monitoring and control unit 110 to external devices .

The power manager 106 may include a data storage memory 111 for storing a result of monitoring the power amount monitoring result output from the power amount monitoring and control unit 110, a detection result value for detecting the internal state, ); And a timer 112 for generating a time clock.

The operation of the power supply apparatus having the management function according to the preferred embodiment of the present invention will be described in detail as follows.

First, in an initial state of the power supply device, the PWM controller 105 generates an initially set PWM signal and inputs the generated PWM signal to the power switching unit 102.

The power supply switching unit 102 receives the input AC power and outputs the power to the power switching unit 102. The power switching unit 102 receives the input AC power in response to the PWM signal generated by the PWM controller 105, And outputs the AC power. Here, the level of the voltage output in accordance with the PWM signal is varied.

The transformer 103 lowers the alternating voltage output through the power switching unit 102 to a certain voltage. The power output circuit 104 rectifies the reduced alternating voltage to a direct current voltage, smoothens it, Thereby outputting a DC voltage.

In the power supply apparatus 100 operating in this manner, the present invention adds a power manager 106 to measure power in real time, controls the operation of the power supply apparatus 100 according to the measured amount of power, The power supply is controlled according to the set value to be set, and the management function of transmitting the internal detection result and the power control status to the outside is performed to efficiently control the power supply device.

For this purpose, the PWM signal sampling unit 107 samples the variable frequency PWM signal output from the PWM controller 105 using the embodiment as shown in FIG. For example, the PWM counter 107a counts the PWM signal input with the waveform shown in Fig. 3A and outputs the result as a PWM count value.

The logic operator 107b performs a logic operation on the fixed frequency generated in the fixed frequency oscillator 107c generating the fixed frequency of the waveform shown in B of Fig. And transmits the result (waveform as shown in C in Fig. 3) to the power measurement counter 107e. Here, it is preferable that the fixed frequency generates a frequency twice or more than the variable frequency PWM signal.

The power measurement counter 107e counts pulses as shown in C of FIG. 3 outputted from the logical operator 107b based on the reference time generated by the reference time oscillator 107d for generating a reference time for sampling, As a power measurement count value.

That is, the PWM signal sampling unit 107 multiplies the PWM signal by the fixed frequency to obtain a fixed frequency during a high level of the PWM signal, counts the number of pulses of the extracted fixed frequency, Value.

The sampled PWM count value and the power measurement count value are input to the power amount calculation unit 108 and the power amount monitoring and control unit 110, respectively.

The power calculation unit 108 calculates a power amount based on the power measurement count value and the PWM count value output from the PWM signal sampling unit 107. Here, the power calculation mainly uses the power measurement count value, and the PWM count value plays an auxiliary role.

That is, the power calculation unit 108 divides the PWM count value from the power measurement count value, calculates the result as a pulse width of the PWM signal frequency, and outputs the calculated value as a power amount calculation value to the power amount monitoring and control unit 110).

As described above, according to the present invention, the change in amplitude is measured in real time through the power amount calculation unit 108, the amplitude change value measured in real time is combined with the PWM count value acquired through the PWM signal sampling unit 107, .

The power amount monitoring and control unit 110 stores the input power amount calculation value in the data storage memory 111. In addition, the power state is determined based on the input power calculation value, and control, alarm, and event information of the power supply device is generated based on the power state. For example, the power state is determined based on the calculated amount of power, and when the power is low or high, control data for power control is generated and output. The control data thus outputted is transmitted to the PWM controller 105 via the internal input / output control unit 109. The PWM controller 105 varies the PWM signal to be output based on the control data and supplies the PWM signal to the power switching unit 102 . The power switching unit 102 switches the power according to the changed PWM signal, and changes the output power so that the low power or the high power is supplied to the normal power.

The power monitoring and control unit 107 may generate power cutoff data as needed. The power-off data (power-off signal) generated in this way is turned off at the actual power control point through the internal input / output control unit 109. Here, the power control point can be set at various positions in the power path, and it is preferable to use a power switch that can turn on / off the power.

The power monitoring and control unit 107 generates event information and transmits the event information to the user through the external input / output management unit 113. Here, the event information includes a power on / off occurrence event, a usage time, and a low power / high power event. The event information thus generated is transmitted to the user through various transmission methods through the external input / output management unit 113. [ For example, various transmission methods may be TCP / IP, USB, RS232C, RS485, and the like. It is also possible to display the status of the event by using a device such as a relay, a switch, an LED, or the like.

The other features of the present invention are to detect internal state (temperature, FAN RPM, AC voltage, DC voltage, operation time, etc.), and each sensing value is monitored and controlled by an internal input / output control unit 109 110).

The power monitoring and control unit 110 generates control data based on the internal sensing value of the power supply, and controls and generates an alarm.

The alarms generated here may include low power / high power alarm, temperature alarm, RPM alarm, use time limit alarm, power off alarm, input AC power low voltage alarm and so on.

The respective alarms are transmitted to the user through the external input / output management unit 113. When it is necessary to control the actual internal devices, control data is generated and directly controlled through the internal input / output control unit 109. [ Here, the internal device control may include interrupting the AC input power, cutting off the DC power, controlling the number of revolutions of the pen, and the like.

In order to generate control data, reference data for generating control data is required. Accordingly, the reference data for generating control data, generating an event, and generating an alarm are stored in the data storage memory 111. The reference data is compared with the detected state information, and control data generation and event generation , An alarm is generated to control the power supply device. The data storage memory 111 may include an alarm / control / event method for low power, an alarm / control / event method for high power, an alarm / control / event method for RPM, an alarm / control / It is preferable that basic data for processing an event method for an alarm / control / event method for the low voltage of the AC power source, a total cumulative use time, a use time limit, an alarm, and the like is stored.

Meanwhile, another feature of the present invention is that the user can set each of the settings for controlling the power supply unit, and the power supply unit can be efficiently operated through the set values.

For example, the user can set settings for power control, update settings for control information, time settings for control, and the like through the user interface management unit 114. For such various settings, the user interface managing unit 114 transmits the setting information to the power amount monitoring and control unit 110, and when there is a setting according to the time information, the user interface managing unit 114 generates an event based on the time information generated from the timer 112 And transmits the generated control data to the power monitoring control unit 110. Accordingly, the power monitoring control unit 110 controls the operation of the power supply unit according to various setting values set by the user.

According to this setting, when the event information is transmitted to the user, the external input / output management unit 113 formats the transmission data according to the format of the format set by the user Respectively. This allows the user to interface data with the power supply using a variety of devices.

Although the present invention has been described in detail with reference to the above embodiments, it is needless to say that the present invention is not limited to the above-described embodiments, and various modifications may be made without departing from the spirit of the present invention.

The present invention is applied to the management technology of a power supply. In particular, it applies to technologies that allow the power supply to be operated externally through settings.

100: Power supply
105: PWM controller
106: Power Manager
107: PWM signal sampling unit
108:
110: Power quantity monitoring and control unit
113: External I /
114: User interface manager

Claims (8)

A PWM controller for generating a pulse width modulation signal for converting a commercial AC power input to a DC power source based on a detection result of detecting an internal state of the AC power source, A power switching unit for switching the power supply; A control unit for generating a power control signal in accordance with a detection result of detecting a power supply internal state, calculating a power amount based on the digital data obtained by converting the pulse width modulation signal, And a power manager for controlling power output according to an event set value set through an interface;
Wherein the power manager includes a PWM signal sampling unit for processing a digital signal obtained by converting a PWM signal output from the PWM controller and outputting a PWM count value and a power measurement count value,
Wherein the PWM signal sampling unit comprises: a fixed frequency oscillator for generating a predetermined fixed frequency for power measurement; A logic operator for logically operating the PWM signal and the fixed frequency and outputting the result; A reference time oscillator for generating a reference time for sampling; And a power measurement counter for counting pulses output from the logic operator based on a reference time generated by the reference time oscillator and outputting the result as a power measurement count value.
The power management system according to claim 1, wherein the power manager simultaneously or selectively controls a power input terminal, a front end of the power switching unit, a front end of the transformer, a front end of the power output circuit, Device.
delete delete The power management system according to claim 1, wherein the power manager further comprises a power calculation unit for dividing the power measurement count value and the PWM count value output from the PWM signal sampling unit and outputting the result as a power amount Built-in power supply.
[6] The power management system of claim 5, wherein the power manager comprises: an internal input / output control unit for interfacing each sensed value sensed inside the power supply unit and interfacing a power output control signal; And a power monitoring and controlling unit for generating a power control signal, an alarm signal, or event information according to the amount of power calculated by the power calculation unit, and controlling transmission of information to be transmitted to the user. Power supply.
The system of claim 6, wherein the power manager further comprises a user interface manager for receiving a set value for power management from a user and transferring the set value to the power monitoring and control unit and for interfacing output information output from the power monitor to the user side A power supply with built-in management features.
The power management system of claim 6, wherein the power manager further includes an external input / output management unit for transmitting external input data to the power monitoring and control unit, and transmitting event information and control information output from the power amount monitoring and control unit to an external device Power supply with built-in management functions.


KR1020140024320A 2014-02-28 2014-02-28 Power supply apparatus with management function KR101443316B1 (en)

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WO2018208129A1 (en) 2017-05-11 2018-11-15 코웨이 주식회사 Multifunctional circulation system enabling purification of outside air
KR102037252B1 (en) 2018-08-10 2019-10-29 에이앤피 주식회사 Management power system
WO2019216547A1 (en) 2018-05-08 2019-11-14 코웨이 주식회사 Multi-functional storage system comprising a recirculation module
KR20200018120A (en) 2018-08-10 2020-02-19 에이앤피 주식회사 Computer management power system
KR20200027173A (en) 2018-09-04 2020-03-12 주식회사 에이텍 Power management system of computer
KR20210103684A (en) 2020-02-14 2021-08-24 (주)엔와이컴퓨터 Method for power consumption reduction of the monitor
KR102453722B1 (en) 2022-04-11 2022-10-12 (주)주연테크 Apparatus and method for decressing power comsumption of monitor

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WO2018208129A1 (en) 2017-05-11 2018-11-15 코웨이 주식회사 Multifunctional circulation system enabling purification of outside air
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KR20200018120A (en) 2018-08-10 2020-02-19 에이앤피 주식회사 Computer management power system
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KR20210103684A (en) 2020-02-14 2021-08-24 (주)엔와이컴퓨터 Method for power consumption reduction of the monitor
KR102453722B1 (en) 2022-04-11 2022-10-12 (주)주연테크 Apparatus and method for decressing power comsumption of monitor

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