CN101847041B - Computer system - Google Patents
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- CN101847041B CN101847041B CN 200910130675 CN200910130675A CN101847041B CN 101847041 B CN101847041 B CN 101847041B CN 200910130675 CN200910130675 CN 200910130675 CN 200910130675 A CN200910130675 A CN 200910130675A CN 101847041 B CN101847041 B CN 101847041B
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Abstract
The invention provides a computer system which can detect an internal state of a power supply. The system comprises a power supply unit and a main board, wherein a detecting unit is arranged in the power supply unit and used for detecting a power supply state in the power supply unit, converting a detected signal into a high-frequency signal and outputting the high-frequency signal to the main board by a POWER GOOD pin of an ATX (Advanced Technology Extended) power supply connector; and the main board can obtain numerical values of internal voltage, current, power, temperature, and the like of the power supply in real time by the ATX power supply connector and display the numerical values on a screen for real-time monitoring by a user.
Description
Technical field
The present invention relates to a kind of computer system, and particularly the internal information about a kind of can the expansion via advanced technology (Advanced Technology Extended is called for short ATX) connector out-put supply supply shows the computer system that supplies user's Real Time Monitoring to computer screen.
Background technology
Advanced technology expansion specification is the mainboard specification of being formulated in nineteen ninety-five by Intel company.ATX has replaced AT mainboard specification, becomes the default mainboard specification of present computer system, is also to assemble at present the most general mainboard specification of computer.In addition, ATX also derives several mainboard specifications, for example micro ATX, Flex ATX and mini-ITX, but its fundamental norms are mostly identical.
In original ATX specification, the pin count of power connector is 20, but along with the power consumption of little processing promotes, 20 pin ATX power connectors of standard begin to provide processor needed larger electric weight.Therefore, new ATX specification has been added the power connection of 4 pins, so the present ATX power connector that uses is 24 pins.The power supply unit that is used for now PC is former because of the standard that is subject to Intel and formulates, and can't increase pin and transmit relevant information about the power supply unit internal state in the connector of 24 original pins.No matter the 20 pin ATX power connectors or the 24 pin ATX power connectors that are standard do not have the pin of responsible data transmission, so system and can't learn state values such as voltage, electric current or temperature in the ATX power supply unit via the ATX power connector.
In the known practice, someone proposes a kind of system and power supply unit that carries out Power Supply Monitoring, and it utilizes the transmission lines such as USB to transmit the internal state of power supply unit to mainboard.Although the method can be come the monitoring power supply supply via software instruction, but because the practice of utilizing the USB transmission needs additionally to arrange the connector of being responsible for data transmission on power supply unit, therefore can improve the manufacturing cost of power supply unit, also can increase the degree of difficulty of user when assembling simultaneously.
Summary of the invention
The invention provides a kind of computer system, can export by the ATX power connector of standard the internal electric source state of ATX power supply unit, allow host computer system can learn primary side circuit in the ATX power supply unit and the relevant informations such as voltage, electric current and temperature variation of secondary side circuit, and be shown on screen, to reach the effect of Real Time Monitoring.
Hold above-mentionedly, the invention provides a kind of computer system, comprise a power-supply unit and a mainboard.Power-supply unit has a state detecting unit and an advanced technology expansion of power supply connector, power-supply unit inside has a state detecting unit, it is in order to detect the voltage of power-supply unit inside, electric current and power supply status, and be high-frequency signal with power state transition, advanced technology expansion of power supply connector has one " POWER GOOD " pin, and power-supply unit transmits this high-frequency signal to mainboard via " POWER GOOD " pin.Mainboard has a decoding unit and an advanced technology expansion of power supply connector, voltage and high-frequency signal that advanced technology expansion of power supply connector is sent to receive this power-supply unit in order to the advanced technology expansion of power supply connector that is connected to power-supply unit.Decoding unit is in order to the high-frequency signal of decoding " POWER GOOD " pin, and the state by the screen display power-supply unit.
In the present invention, the power supply status pin of above-mentioned ATX power connector is " POWER GOOD " pin that meets in ATX power connector specification, whether the DC voltage level of wherein power-supply unit adjustment " POWERGOOD " pin is in a normal voltage scope with the DC voltage exported of expression, and the state detecting unit is equipped on high-frequency signal on the DC voltage level of power supply status pin.
In the present invention, wherein the amplitude of high-frequency signal is less than peaked 1/2nd of DC voltage level.
In the present invention, wherein power-supply unit also comprises a voltage conversion unit, in order to an AC power is converted to a direct current power supply, above-mentioned voltage conversion unit comprises an Electromagnetic interference filter (electromagnetic interference, abbreviation EMI), a circuit of power factor correction (Power Factor Correction is called for short PFC) and a voltage conversion circuit.Electromagnetic interference filter is in order to the high frequency noise of filtering AC power, and circuit of power factor correction is coupled to the output of Electromagnetic interference filter, and voltage conversion circuit is coupled to the output of circuit of power factor correction, in order to the output DC source.Wherein, the state detecting unit is coupled to voltage conversion unit, in order to voltage, electric current, power, temperature and the fan speed of detecting circuit of power factor correction, voltage conversion circuit to produce this status data.Wherein voltage conversion circuit also comprises main transformer and a direct current voltage conversion circuit.
In the present invention, wherein above-mentioned state detecting unit comprises one first microcontroller and one second microcontroller, the first microcontroller is in order to the internal state of the primary side of detecting power-supply unit, and the second microcontroller is in order to the internal state of the secondary side of detecting power-supply unit.
In the present invention, mainboard also comprises a decoding unit, is coupled to the ATX power connector, and in order to the high-frequency signal of decoding, wherein decoding unit can be a Basic Input or Output System (BIOS) (Basic Input/Output System is called for short BIOS).
In the present invention, wherein the power supply status data comprise an input voltage, an input current, an output voltage, an output current, a temperature value and a guard signal of power-supply unit.
Based on above-mentioned, the present invention utilizes the power supply status pin (" POWERGOOD " Pin) in the ATX power connector to transmit the internal state information of power supply unit, mode by carrier wave is carried high-frequency signal on the DC voltage level on " POWER GOOD " pin, allow " POWER GOOD " pin have the function of two kinds of signals of transmission, namely original DC voltage change and the high-frequency signal that exchanges.Mainboard can utilize Basic Input or Output System (BIOS) (BIOS) that high-frequency signal is decoded, to learn the internal state information of present power supply unit.
Because the present invention need not change original ATX power connector framework, therefore applicable to traditional ATX power system and mainboard, the high-frequency signal even mainboard can't be decoded, power system of the present invention still can normal operation.
For above-mentioned feature and advantage of the present invention can be become apparent, embodiment cited below particularly, and coordinate accompanying drawing to be described in detail below.
Description of drawings
Figure 1A is computer system schematic diagram according to an embodiment of the invention.
Figure 1B is power system calcspar according to an embodiment of the invention.
Fig. 2 is the main circuit structural drawing of power-supply unit according to an embodiment of the invention.
Fig. 3 is the Organization Chart of ATX power connector according to an embodiment of the invention.
Fig. 4 is the signal waveforms on the power supply status pin according to an embodiment of the invention.
Embodiment
Please refer to Figure 1A, Figure 1A is computer system schematic diagram according to an embodiment of the invention, computer system 100 comprises power-supply unit 105 and mainboard 115, the first feeding unit 105 of electricity has advanced technology expansion of power supply (being called for short ATX) connector 130, in order to connect the ATX connector 140 on mainboard 115.Power-supply unit 105 is converted to direct supply with the AC power that receives, and via ATX connector 130, direct supply (3.3V, 5V, 12V) is sent to mainboard 115, for mainboard.
Power-supply unit 105 has a state detecting unit 120; state detecting unit 120 can be detected the power supply status of power-supply unit 105 inside voluntarily; for example input voltage, input current, output voltage, output current, temperature information or guard signal (as overheating protection), then be converted into a high-frequency signal.Power-supply unit 105 can carry this high-frequency signal on " the POWER GOOD " of ATX connector 130 pin, and " POWER GOOD " pin by ATX connector 130 transmits high-frequency signal to mainboard 115.Has a decoding unit 150 on mainboard 115, this high-frequency signal of decoding unit 150 decodable codes, the power supply status of state detecting unit 120 Real Time Monitoring power-supply units 105, and power supply status is presented on screen 116, allow user's power supply status of monitoring power supply feeding unit 105 easily.
Next, further illustrate the internal circuit configuration of above-mentioned power-supply unit 105 and mainboard 115, please refer to Figure 1B, be computer system calcspar according to an embodiment of the invention, computer system 100 comprises power-supply unit 105 and mainboard 115.Power-supply unit 105 comprises voltage conversion unit 110, state detecting unit 120 and ATX power connector 130.Comprise ATX power connector 140 and decoding unit 150 in mainboard 115.Voltage conversion unit 110 is coupled to ATX power connector 130 with state detecting unit 120, and state detecting unit 120 also is coupled to voltage conversion unit 110, and decoding unit 150 is coupled to ATX connector 140.In power-supply unit 105, set state detecting unit 120 can be detected the internal electric source state (comprising: the input voltage of power supply unit, input current, output voltage, output current, power, temperature etc.) of voltage conversion unit 110 voluntarily, and then the internal electric source state of " POWER GOOD " the pin output voltage converting unit 110 by ATX power connector 130 is to mainboard 115.
The main circuit structure of voltage conversion unit 110 as shown in Figure 2, Fig. 2 is the main circuit structural drawing of power-supply unit according to an embodiment of the invention.Mainly comprise Electromagnetic interference filter 210, circuit of power factor correction 220 and voltage conversion circuit 230 in voltage conversion unit 110, wherein also comprise main transformer 232 and DC voltage converting circuit 234 in voltage conversion circuit 230.Circuit of power factor correction 220 is coupled between Electromagnetic interference filter 210 and voltage conversion circuit 230, and main transformer 232 is coupled between circuit of power factor correction 220 and DC voltage converting circuit 234.
Generally speaking, the circuit structure of voltage conversion unit 110 is as the criterion with primary side and the secondary side of main transformer 232, voltage conversion unit 110 is divided into primary side circuit and secondary side circuit, wherein the primary side circuit is mainly used in receiving AC power, and via the high frequency noise in Electromagnetic interference filter 210 and circuit of power factor correction 220 filtering AC power and its power factor of adjustment, and the secondary side circuit is mainly used in conversion, adjustment and the filtering of DC voltage.Generally speaking, the operating voltage of secondary side circuit can be less than the operating voltage of primary side circuit.It should be noted that in the circuit structure of voltage conversion unit 110 still can comprise the remaining circuit element, electric capacity for example, power transistors etc., Fig. 2 are only the schematic diagram of the present embodiment, voltage conversion unit 110 of the present invention is not limited to this.Circuit framework about voltage conversion unit 110 can with reference to the framework of ATX power supply unit, not add at this and give unnecessary details.
In the present embodiment, voltage conversion unit 110 is for example the ATX power supply unit, in order to AC power is converted to direct supply, and exports system end to via the ATX power connector, as the mainboard of computer.State detecting unit 120 can detecting voltage conversion units 110 internal state, such as output voltage, output current, power and the temperature variation of the input voltage of primary side circuit, input current, power, temperature variation, secondary side circuit and rotation speed of the fan etc.State detecting unit 120 can be converted to a high-frequency signal with the status data that detects, then via 130 outputs of ATX power connector.Mainboard 115 can learn that the internal state of voltage conversion unit 110 is to carry out suitable power management by decoding unit 150.Decoding unit 150 can be arranged on mainboard 115, or is replaced by the BIOS chip on mainboard 115, and the designer can be integrated into the function of decoding unit 150 among the BIOS chip in the firmware mode.
Because the primary side circuit of voltage conversion unit 110 is different from the operating voltage range of secondary side circuit, therefore the primary side circuit of voltage conversion unit 110 and the internal states such as voltage, electric current, power and temperature of secondary side circuit can according to the circuit structure of voltage conversion unit 110, be detected respectively with two microcontrollers in state detecting unit 120.It should be noted that state detecting unit 120 also can single microcontroller detects the conversion with signal, the present invention is not limited.After the internal state data that obtains voltage conversion unit 110, state detecting unit 120 can be converted into high-frequency signal, then high-frequency signal is carried on the power supply status pin of ATX power connector, namely the 8th branch connecting pin of ATX power connector, i.e. " POWER GOOD " pin.
In the present embodiment, the ATX power connector describes as an example of 24 pins example, its structure as shown in Figure 3, Fig. 3 is the Organization Chart of ATX power connector according to an embodiment of the invention.Wherein the 8th branch connecting pin P8 is " POWER GOOD " pin, mainly whether the voltage that utilizes DC voltage level to represent that power supply unit is exported is in normal range, when output voltage is normal, the DC voltage of " POWERGOOD " pin meeting output logic high level (being generally 5V).Be the digital signal of higher-frequency due to high-frequency signal, " POWER GOOD " pin only can be in logic high or logic low, therefore for high-frequency signal, " POWER GOOD " pin signal originally can be considered as DC level.High-frequency signal can directly carry on the DC voltage level on " POWER GOOD " pin, exists simultaneously with the mode of carrier wave and the DC voltage on " POWER GOOD " pin.
In addition, be to avoid DC voltage level originally on amplitude impact " POWER GOOD " pin of high-frequency signal, the amplitude of high-frequency signal can be less than 1/2nd of the maximal value (being logic high) of the DC voltage level on " POWER GOOD " pin.The transmission mode of high-frequency signal please refer to Fig. 4, and Fig. 4 is the signal waveforms on " POWER GOOD " pin.As shown in Figure 4, when the voltage of exporting when power supply unit is in normal range, DC voltage level 410 on " POWER GOOD " pin can be in logic high, and high-frequency signal 420 is equipped on DC voltage level 410 on " POWERGOOD " pin with the form of carrier wave.
Mainboard can directly learn by the DC voltage level 410 on " POWER GOOD " pin the information that meets the ATX specification, simultaneously also decodable code with by the high-frequency signal 420 on " POWER GOOD " pin to obtain the internal state of voltage conversion unit 110.Therefore; system all can be known fully for the variations such as input voltage, input current, output voltage, output current, power, temperature and guard signal of power supply unit; and can be presented in real time and allow power that the user knows that present system uses why on screen, and assess present power supply unit and whether can satisfy required or excess temperature, overload have been used.
In addition, it should be noted that high-frequency signal 420 is not restricted to digital signal or simulating signal, the user can use communication protocol or the signal form that is fit to according to system requirements own, as long as state detecting unit 120 and decoding unit 150 be transmission of information mutually, the present invention is not limited.
In addition, because the present invention is carried high-frequency signal on the power supply status pin on script ATX power connector, therefore original ATX transmission standard and function can't be affected, even mainboard is not supported the decoding of high-frequency signal, also power-supply unit 105 of the present invention can be normally used.Decoding unit 150 in computer system 100 of the present invention optionally is integrated in general mainboard.When not integrating decoding unit 150, system can use power-supply unit 105 as general ATX power supply unit.When integrating decoding unit 150, host computer system just can be learnt by the high-frequency signal that state detecting unit 120 is exported the internal state of power-supply unit 105.In other words, the power-supply unit 105 of the present embodiment can be used in separately in general host computer system, and whether decoding unit 150 can be selected to be integrated among mainboard 115 or selectively enabling according to user's demand.
In sum, the present invention is in the mode of carrier wave, high-frequency signal is equipped on the power supply status pin of ATX power connector, under the framework that does not affect the ATX power connector and transmission standard, allow mainboard obtain the internal information of power-supply unit to reach the effect of Real Time Monitoring power supply unit by the ATX power connector.
Although the present invention discloses as above with embodiment; so it is not to limit the present invention; have in technical field under any and usually know the knowledgeable; without departing from the spirit and scope of the present invention; when doing a little change and retouching, therefore protection scope of the present invention is as the criterion when looking claims person of defining.
Claims (10)
1. a computer system is characterized in that comprising:
Power-supply unit is powered in order to power supply to mainboard to be provided, and above-mentioned power-supply unit comprises:
The state detecting unit in order to detecting the power supply status of above-mentioned power-supply unit inside, and is high-frequency signal with above-mentioned power state transition; And
Advanced technology expansion of power supply connector has " POWER GOOD " pin, and above-mentioned power-supply unit transmits above-mentioned high-frequency signal via above-mentioned " POWER GOOD " pin; And
Mainboard comprises:
Advanced technology expansion of power supply connector connects the above-mentioned advanced technology expansion of power supply connector of above-mentioned power-supply unit, and receives voltage and the above-mentioned high-frequency signal that above-mentioned power-supply unit is sent;
Decoding unit, in order to the above-mentioned high-frequency signal of decoding, and the state by the above-mentioned power-supply unit of screen display.
2. computer system according to claim 1 is characterized in that whether DC voltage level that above-mentioned power-supply unit wherein adjusts above-mentioned " POWER GOOD " power supply status pin is in a normal voltage scope with the voltage that represents above-mentioned power-supply unit and exported.
3. computer system according to claim 2 is characterized in that wherein above-mentioned state detecting unit is equipped on above-mentioned high-frequency signal on the above-mentioned DC voltage level of above-mentioned power supply status pin.
4. computer system according to claim 2 is characterized in that the amplitude of above-mentioned high-frequency signal wherein is less than peaked 1/2nd of above-mentioned DC voltage level.
5. computer system according to claim 1, is characterized in that wherein above-mentioned power-supply unit also comprises voltage conversion unit, in order to AC power is converted to direct supply.
6. computer system according to claim 5 is characterized in that wherein above-mentioned voltage conversion unit also comprises:
Electromagnetic interference filter is in order to the high frequency noise of the above-mentioned AC power of filtering;
Circuit of power factor correction is coupled to the output of above-mentioned Electromagnetic interference filter; And
Voltage conversion circuit is coupled to the output of above-mentioned circuit of power factor correction, in order to export above-mentioned direct supply;
Wherein, above-mentioned state detecting unit is coupled to above-mentioned voltage conversion unit, in order to voltage, electric current, power, temperature and the fan speed of detecting above-mentioned circuit of power factor correction, above-mentioned voltage conversion circuit to produce above-mentioned power supply status.
7. computer system according to claim 6, it is characterized in that wherein above-mentioned voltage conversion circuit also comprises main transformer and DC voltage converting circuit, above-mentioned main transformer is coupled to the output of above-mentioned circuit of power factor correction, and above-mentioned DC voltage converting circuit couples above-mentioned main transformer in order to export above-mentioned direct supply.
8. computer system according to claim 5 is characterized in that wherein above-mentioned state detecting unit comprises:
The first microcontroller is in order to the internal state of the primary side of detecting above-mentioned voltage conversion unit; And
The second microcontroller is in order to the internal state of the secondary side of detecting above-mentioned voltage conversion unit.
9. computer system according to claim 1, is characterized in that wherein above-mentioned decoding unit is Basic Input or Output System (BIOS).
10. computer system according to claim 1 is characterized in that above-mentioned power supply status wherein comprises input voltage, input current, output voltage, output current, temperature value and the guard signal of above-mentioned power-supply unit.
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| CN 200910130675 CN101847041B (en) | 2009-03-27 | 2009-03-27 | Computer system |
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| CN 200910130675 CN101847041B (en) | 2009-03-27 | 2009-03-27 | Computer system |
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| CN101847041A CN101847041A (en) | 2010-09-29 |
| CN101847041B true CN101847041B (en) | 2013-06-12 |
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| CN 200910130675 Active CN101847041B (en) | 2009-03-27 | 2009-03-27 | Computer system |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102999096B (en) * | 2011-09-14 | 2016-03-30 | 中山市云创知识产权服务有限公司 | Computing machine |
| CN104571443A (en) * | 2015-02-02 | 2015-04-29 | 成都智控科技有限公司 | High-performance computer power supply |
| TWM577125U (en) * | 2019-01-04 | 2019-04-21 | 華碩電腦股份有限公司 | Electronic apparatus and host thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1794136A (en) * | 2005-11-18 | 2006-06-28 | 张宏志 | Monitoring system of power source supplier possossing USB transmission |
| CN101246387A (en) * | 2008-02-29 | 2008-08-20 | 江苏科技大学 | Control device and method for computer ATX electric power |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWM277989U (en) * | 2005-03-07 | 2005-10-11 | Acbel Polytech Inc | Power supply device capable of generating status message |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1794136A (en) * | 2005-11-18 | 2006-06-28 | 张宏志 | Monitoring system of power source supplier possossing USB transmission |
| CN101246387A (en) * | 2008-02-29 | 2008-08-20 | 江苏科技大学 | Control device and method for computer ATX electric power |
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