JP2005354801A - Replaceable power supply system for electric circuit work frequency automatic regulation, and electric circuit work frequency automatic regulating method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To attain such characteristics as improving use efficiency of pulse width modulation PWM itself, lowering its replacement loss, suppressing system temperature, improving zigzag current, and lowering peak-to-peak ripple voltage. <P>SOLUTION: DC power is supplied to a computer body 4 by providing a replaceable power supply 2 capable of regulating electric circuit work frequency automatically thereby regulating the work frequency of a converter 3. That system 2 comprises a detection monitoring and control unit 24, a comparison unit 26, a PWM switching frequency regulation uni 27, a storage unit 28, and a setting unit 29. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a replaceable power supply system for automatic adjustment of an electric circuit work frequency and an automatic adjustment method of an electric circuit work frequency. The present invention relates to a power feeding system and an electric circuit work frequency automatic adjustment method.

  FIG. 1 is a block diagram showing an electric circuit of a conventional replaceable power supply system, in which the replaceable power supply system uses a pulse width modulation (PWM) technique and a power switch ( The purpose of supplying power to the system via the filtering network 13 is controlled.

  The pulse width modulation (PWM) technology work system provides a predetermined frequency from the oscillation circuit 17 to the pulse width modulation unit 15, in which case the comparator 12 detects the DC voltage DC output, Therefore, when the output DC voltage DC becomes lower than the reference voltage 16 after passing through the voltage dividing network 14, that is, when the output load becomes heavy, the rectangular wave output by the pulse width modulation unit 15 is output. This means that the work cycle of the power switch (unsigned) becomes longer, so that the dropped voltage of the output can be compensated and the voltage can be restored to the original predetermined value, so that the voltage is stable. The purpose of conversion can be achieved.

  Similarly, if the load becomes lighter, the output DC voltage DC becomes higher than the reference voltage 16 after passing through the voltage dividing network 14, and is detected by the comparator 12, and then the pulse width modulation is performed. -The work cycle of the rectangular wave output from the unit 15 is shortened, and thus the work cycle of the power switch (unsigned) is also shortened, so that the output DC voltage DC is lowered to a standard predetermined value. Therefore, the purpose of stabilizing the voltage can be achieved. Here, the work frequency of the power switch (unsigned) is not modified according to the modification of the work cycle. In other words, the work frequency of the electric circuit is kept at a predetermined value forever.

  Traditionally, pulse width modulation (PWM) technology used in computer systems can provide the power of the central processing unit (CPU) to do the work, so the current central processing unit power supply system is finished its design Later, the work frequency output by the pulse width modulation PWM is held at a predetermined value that does not change.

  Therefore, when using any software to change the current load by using any central processing unit (CPU), when the environment inside or outside the casing is modified, the power supply itself or the weight of the load In the case of causing a voltage change, the work frequency output by the pulse width modulation PWM cannot be changed after the design is completed. Therefore, the efficiency of pulse width modulation PWM itself is reduced, the switching loss is reduced, the system temperature is suppressed, the zigzag current is improved, the ripple voltage peak-to-peak value is lowered, and the stability of the output voltage is improved for the entire system. Cannot contribute any of the contributions, etc., and the maximum effectiveness of the device itself and the desire of the user cannot be achieved, which can greatly reduce the overall representation of the computer.

  In view of each of the above problems, the present invention can be applied to a computer main body and can be adjusted so that the work frequency is automatically increased or decreased automatically by a dynamic method. The main object of the present invention is to provide a method for automatically adjusting the work frequency of an electric circuit.

  In addition, the present invention clearly improves the use efficiency of pulse width modulation PWM itself, reduction of exchange loss, suppression of system temperature, improvement of zigzag current, reduction of ripple voltage peak-to-peak, etc. It is a second problem to be solved to provide a replaceable power supply system for automatically adjusting an electric circuit work frequency and an electric circuit work frequency automatic adjusting method.

  In order to achieve the above object, the present invention provides a replaceable power supply system for automatic adjustment of electric circuit work frequency and a method of automatic adjustment of electric circuit work frequency, which mainly includes detection monitoring connected to a computer body and The control unit type number of the central processing unit (CPU) in the computer main body, changes in current consumed by the central processing unit, changes in temperature inside or outside of the casing or a specific part, changes in the respective voltages, and amount of load Information such as a change in data is detected, and conversion is performed so that the information becomes a detected value. The detected value is transmitted to the comparison unit of the detection monitoring and control unit. At the same time, the comparison unit compares the detected value with the trigger condition value stored in the storage unit, and the PWM switching frequency adjustment unit The comparison result signal is transmitted. The trigger condition value stored in the storage unit is obtained by executing a setting operation by the setting unit.

  In the above description, the PWM switching frequency adjustment unit adjusts the work efficiency of the PWM automatically to be faster or slower by a dynamic method according to the content of the comparison result signal, thereby making the computer main body more efficient than the converter. Can be powered.

  Further, in the case of the replaceable power supply system for automatic adjustment of the electric circuit work frequency and the electric circuit work frequency automatic adjustment method of the present invention, the change in the work state of the computer body is immediately detected, monitored and controlled by the detection monitoring and control unit. When the change reaches the preset starting point, the PWM switching frequency adjustment unit of the present invention automatically adjusts the PWM work frequency according to the content of the comparison result signal in a dynamic manner. By obtaining the best efficiency and the most stable output by executing the response in response to the changing operating environment, and suitable for the converter, electric energy can be appropriately supplied to the computer main body.

  FIG. 2 is an electric circuit block diagram showing the configuration of a replaceable power feeding system capable of automatically adjusting the electric circuit work frequency of the present invention. As shown in the drawing, the present invention is a kind of electric circuit work frequency. Is provided, and a DC power is provided to the computer main body 4 by adjusting the work frequency of the converter 3, and the system 2 includes a detection monitoring and control unit. 24, a comparison unit 26, a PWM switching frequency adjustment unit 27, a storage unit 28, and a setting unit 29.

  As shown in FIG. 2, the detection monitoring and control unit 24 is connected to the computer main body 4, thereby detecting a work state of the computer main body 4 and outputting a detection value. The setting unit 29 is connected to the storage unit 28 and is used to set the trigger condition value, and the trigger condition value is stored in the storage unit 28. In the above description, the trigger condition value is used to adjust the trigger condition value of the work frequency, and the comparison unit 26 is connected to the detection monitoring and control unit 24 and the storage unit 28. The detection value transmitted from the detection monitoring and control unit 24 and the trigger condition value stored in the storage unit 28 are received, and at the same time, a comparison process is executed and a comparison result signal is output. Also, a PWM switching frequency adjustment unit 27 is connected to the comparison unit 26 and the converter 3, receives the comparison result signal transmitted from the comparison unit 26, and based on the comparison result signal, the PWM work efficiency is improved by a dynamic method. Is adjusted dynamically and automatically so as to be faster or slower, so that the converter 3 can supply power to the computer main body 4 more efficiently.

  In addition, as shown in FIG. 2, the detection monitoring and control unit 24 includes a detection device (unsigned) and a monitoring and control module (unsigned). Voltage detection device, current detection device, temperature detection device, load detection device, etc. can be used as appropriate as the device, voltage monitoring and control module, current monitoring and control module, temperature monitoring and control module as its monitoring and control module Control modules, load monitoring and control modules can be used as appropriate. The detection monitoring and control unit 24 is connected to the important portions of the computer main body 4 through the detection devices (not shown), thereby detecting the work state value of the computer main body 4. In addition, the monitoring and control module is combined to immediately monitor the voltage, current, temperature, program load work status, etc. in the computer main body 4 and then feed back changes in those states to the system.

  In the above description, the detection monitoring and control unit 24 has at least one detection device (unsigned) and a monitoring and control module (unsigned), in which the detection of those mentioned above As a device, a voltage detection device, a current detection device, a temperature detection device, a load detection device, etc. can be used in combination, and as those monitoring and control modules, voltage monitoring and control modules, current monitoring and control modules, Any one or more of temperature monitoring and control module and load monitoring and control module can be used as appropriate. In addition, the detection monitoring and control unit 24 is connected to a plurality of weighted portions of the computer main body 4 through the detection devices, so that the operating environment of the computer main body 4 can be controlled. Changes are detected more precisely, and each of the monitoring and control modules of each unit is combined to immediately monitor voltage, current, temperature, program loading work status, etc. in the computer main body 4, and then Feed back state changes to the system.

  In addition, as shown in FIG. 2, when the user switches on, the system trigger condition value can be set by the setting unit 29, and a combination of a plurality of types of trigger condition values according to different needs. The set trigger condition values can be stored in the storage unit 28 as well as being settable. During subsequent use, the switching frequency of the pulse width modulation PWM according to the combination of the trigger condition values set by the user via the comparison unit 26 and the detected values of the system status messages collected by the detector. Judgment whether to improve or to lower.

  In any operating system, when the computer body 4 tries to process a program having a heavy load, or when the computer body 4 needs to process a program that takes a long time, the system automatically In response to each need, the pulse width modulation PWM switching work frequency is adjusted to be fast, and when the system is returned to the normal state, or when the processing of the program ends, the above system Designed to switch to the original switching work frequency of PWM, work at normal frequency, make the whole work switching process independent of software processing, and eliminate the need to reset the computer body 4 That switching process is still in process It is designed so it does not affect the program.

  The present invention also uses a temperature detection device alone and is combined with the temperature monitoring and control module to constitute a temperature monitoring and control controller, and the pulse width modulation PWM is a power switch in the converter 3. If the temperature when controlling the MOS becomes overheated, the system will automatically adjust the pulse width modulation PWM switching work frequency to slow down, thereby reducing the temperature of the power switch MOS . When the pulse wave width modulation PWM controls the temperature of the power switch MOS in the converter 3 to be equal to or lower than the set temperature, the pulse wave width modulation PWM is switched to the work frequency and the work is executed. According to the present invention, the reaction time is fast and does not cause incompatibility, and it is not necessary to reset the computer body 4 when modifying or setting the detection device in any operating system. Because you can execute the settings directly, you can have the most gentle and greatest functionality.

  FIG. 3 is a flow chart showing the method for automatically adjusting the work frequency of the electric circuit according to the present invention. The process steps of the method for automatically adjusting the work frequency of the electric circuit according to the present invention are as described below. Yes, that is, first, the detection monitoring and control unit is started (step S100), the trigger condition value for switching and adjusting the work frequency of the electric circuit is set (step S102), and the work state of the computer main body is changed. When the detection value with the work state of the computer main body is acquired by immediately detecting and monitoring and controlling (step S104), the trigger condition value and the detection value of the work state of the computer main body are immediately obtained. (Step S106), P is determined according to the comparison result. Immediately adjust the frequency of the converter by M switching frequency adjusting unit (step S108).

  Referring to FIG. 3 in conjunction with FIG. 2, the detection monitoring and control unit 24 includes a detection device (unsigned) and a monitoring and control module (unsigned), in which As the detection device, a voltage detection device, a current detection device, a temperature detection device, a load detection device, etc. can be used in combination with one kind or a plurality of kinds of detections, and for each detection device, A unique monitoring and control module is used together to monitor the computer body 4 immediately and output a detection value. Any one or more of voltage monitoring and control module, current monitoring and control module, temperature monitoring and control module, load monitoring and control module, etc. are preferably selected as the monitoring and control module. Can be used.

  In the step of setting the trigger condition, the trigger condition value can be set according to a single trigger condition value of a single detection device, or can be set according to one or more trigger condition values of one or more detection devices. . The timing for setting the trigger condition value may be set in advance before the system is shipped, and may be stored in the storage unit 28 of the computer system, or when the user starts the apparatus. The user may set it according to the situation at that time and store it in the storage unit 28 of the computer system.

  In the step of immediately adjusting the work frequency of the converter, the system performs a comparison process between the trigger condition value set by the user and the detection value output from the detection monitoring and control unit 24. In this case, it is determined and determined whether the switching work frequency of the pulse wave width modulation PWM should be adjusted. The switching work frequency of the pulse wave width modulation PWM can be adjusted in two directions, that is, whether the frequency is increased or decreased. Of course, if the change in the work environment has not yet reached the trigger condition value, it is set so as to be held at the switching work frequency of the original pulse wave width modulation PWM.

  As described above, the replaceable power feeding system and the electric circuit work frequency automatic adjustment method for automatic adjustment of the electric circuit work frequency according to the present invention can be applied to a kind of computer main body 4 and automatically work by a dynamic method. An exchangeable power supply system capable of adjusting the work frequency so as to increase or decrease the frequency and a method thereof can be suitably provided, and the present invention can reduce the use efficiency of the pulse width modulation PWM itself and reduce the exchange loss thereof. It has been shown to have excellent effects in reducing the temperature of the system, improving the zigzag current, and reducing the peak-to-peak ripple voltage.

It is a block diagram which shows the electric circuit of the conventional interchangeable electric power feeding system. It is a block diagram which shows the electric circuit of the exchange type electric power feeding system for the electric circuit work frequency automatic adjustment of this invention. It is a flowchart which shows the process step of the electric circuit work frequency automatic adjustment method of this invention.

Explanation of symbols

2 Exchangeable power supply system with automatic adjustment of electric circuit work frequency 3 Converter 4 Computer main body 24 Detection monitoring and control unit 26 Comparison unit 27 PWM switching frequency adjustment unit 28 Storage unit 29 Setting unit

Claims (13)

In the exchangeable power supply system for automatic adjustment of the electric circuit work frequency used to adjust the work frequency of the converter and used to supply DC power to the computer body,
A detection monitoring and control unit connected to the computer body for detecting a work state of the computer body and outputting a detection value;
A setting unit for setting a trigger condition value used for adjusting the work frequency of the electric circuit;
A storage unit connected to the setting unit for storing the trigger condition value;
A comparison unit connected to the storage unit and the detection monitoring and control unit, which compares the detection value with the trigger condition value and outputs a comparison result signal;
A PWN switching frequency adjustment unit connected to the comparison unit and the converter for receiving the comparison result signal and adjusting a work frequency of the converter according to the comparison result signal;
An exchangeable power supply system for automatic adjustment of an electric circuit work frequency, comprising:   The exchange power supply system for automatic adjustment of an electric circuit work frequency according to claim 1, wherein the detection monitoring and control unit comprises at least one detection device and at least one monitoring and control module. .   3. The electric circuit work frequency automatic adjustment interchangeable type according to claim 2, wherein the detection device uses a combination of a voltage detection device, a current detection device, a temperature detection device, and a load detection device. Power supply system.   The voltage monitoring and control module, the current monitoring and control module, the temperature monitoring and control module, and the load monitoring and control module are combined as the monitoring and control module. The exchange type electric power feeding system for electric circuit work frequency automatic adjustment according to claim 2.   The exchange power supply system for automatic adjustment of an electric circuit work frequency according to claim 1, wherein the detection monitoring and control unit includes one detection device and one monitoring and control module.   6. The replaceable power supply for automatic adjustment of the electric circuit work frequency according to claim 5, wherein any one of a voltage detection device, a current detection device, a temperature detection device, a load detection device and the like is used as the detection device. system.   As the monitoring and control module, a voltage monitoring and control module, a current monitoring and control module, a temperature monitoring and control module, a load monitoring and control module, or the like is used. The exchange type electric power feeding system for electric circuit work frequency automatic adjustment according to claim 5. In the electric circuit work frequency automatic adjustment method for supplying DC power to the computer main body by adjusting the work frequency of the converter,
Starting the detection monitoring and control unit (1);
A step (2) of setting a trigger condition value for switching and adjusting the electric circuit work frequency;
(3) a step of immediately detecting a work state of the computer main body, and monitoring and controlling the work state of the computer main body, and obtaining a detection value of the work state of the computer main body;
(4) immediately comparing the trigger condition value and the detected value of the work state of the computer body;
(5) adjusting the work frequency of the converter instantaneously and adjusting the work frequency of the converter according to the comparison result by a PWN switching frequency adjustment unit;
An electrical circuit work frequency automatic adjustment method comprising:   9. The electric circuit work frequency automatic adjustment method according to claim 8, wherein in the step (2) of setting the trigger condition value, a single trigger condition value of a single detection device is set.   9. The electric circuit work frequency automatic adjustment method according to claim 8, wherein in the step (2) for setting the trigger condition value, at least one trigger condition value of at least one detection device is set.   9. The electric circuit work according to claim 8, wherein the step (2) for setting the trigger condition value sets and stores these values in a storage unit in a computer system in advance before shipping. Automatic frequency adjustment method.   9. The step (2) of setting the trigger condition value is configured such that the user can execute the setting at any time when the switch is turned on, and the setting is stored in a storage unit of the computer system. The electric circuit work frequency automatic adjustment method as described.   9. The electric circuit work frequency automatic adjustment method according to claim 8, wherein the step (5) of immediately adjusting the work frequency of the converter performs the adjustment as if the frequency is increased or decreased.

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