CN100351741C - Computer power supply - Google Patents
Computer power supply Download PDFInfo
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- CN100351741C CN100351741C CNB2005100192642A CN200510019264A CN100351741C CN 100351741 C CN100351741 C CN 100351741C CN B2005100192642 A CNB2005100192642 A CN B2005100192642A CN 200510019264 A CN200510019264 A CN 200510019264A CN 100351741 C CN100351741 C CN 100351741C
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- alternating current
- power supply
- system management
- management bus
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Abstract
A power supply of computer is featured as using AC signal regulating circuit and monitoring circuit to convert AC voltage and AC current as well as operation frequency to be DC voltage signal, outputting DC voltage signal to host through bus interface and system management bus after A/D conversion, enabling to calculate out power consumption of computer according to these signals for realizing real time monitoring on computer.
Description
Technical field
A kind of computer power supply with monitoring alternating current parameter function combines computer technology, electric detecting technology and System Management Bus (SMBUS) technology.
Background technology
Computer power supply is the indispensable significant components of computing machine, and it can be converted to DC voltage with the alternating current of input, provide+5V ,+the required power supply of system works such as 12V.In different countries and regions, the alternating current voltage grade of use is different: 110V, 220V, 240 etc. are arranged, and the usable range for supply voltage on the operation instructions of computing machine also all has requirement, provides the permission operation interval.And present computing machine is as important processor, lack real-time monitoring self and use the method and apparatus of alternating current, generally by using digital multimeter or other instrument to measure alternating voltage and electric current, digital multimeter built-in signal modulate circuit, A/D converter and display etc. have little, the lightweight characteristics of volume.
The hardware monitoring circuit is all arranged on the main frame of computing machine usually, be used to measure cpu temperature and all kinds of operating voltage, the core of supervisory circuit is integrated circuit (IC) chip with bus (as SMBUS), and its application on power supply can application reference number: the patent of the Chinese patent of 200410013452.X and international application no: PCTCN2005/001028.
Summary of the invention
The situation of using alternating current in order to make computing machine can monitor self, the present invention relates to a kind of computer power supply of measuring the alternating current parameter function that has, computer operation required voltage and signal both were provided, can also measure alternating current parameters such as alternating voltage, alternating current, ac frequency in real time, can calculate and demonstration AC power consumption and institute's power consumption in the unit interval with main frame.Disclosure of the Invention it constructive method and the device of forming according to this method:
A kind of composing method of computer power supply, power supply provide required voltage of computer operation and signal, it is characterized in that, comprise the steps:
(a) AC signal modulate circuit and observation circuit are set in power supply, the input of signal conditioning circuit is connected on the AC power of computing machine input end, converts the alternating current parameter signal to d. c. voltage signal respectively,
(b) output of signal conditioning circuit connects the input of observation circuit, and observation circuit comprises A/D converter and System Management Bus interface, the O connection system management bus interface of A/D converter, and by System Management Bus output,
(c) alternating current parameter after the above-mentioned conversion is transferred to main frame by System Management Bus, by main frame monitoring power supply alternating current parameter.
Wherein, alternating current parameter comprises alternating voltage, complete machine alternating current, AC power frequency at least;
The workflow of alternating current parameter running status in the main frame monitoring power supply comprises the steps: in step (c)
The alternating current parameter that reception measures;
Calculate the instantaneous power of computing machine and the accumulative total power consumption that is consumed according to alternating voltage, complete machine alternating current;
Show alternating current parameter, instantaneous power and accumulative total power consumption parameter;
Judge that whether the alternating voltage, complete machine alternating current and the AC power frequency that measure exceed the parameter area of permission, if exceed the scope of permission, then produce warning message.
The composing method of described computer power supply, its feature also be,
Described AC signal modulate circuit comprises attenuator, AC/DC converter, I/DC converter, Hz/DC converter, and above-mentioned converter is also referred to as the ac electric sensor, selects for use according to the difference of the alternating current parameter signal of being monitored.
The composing method of described computer power supply, its feature also be,
System Management Bus SMBUS is compatible I2C bus.
Form a kind of computer power supply according to said method, be installed in the computer cabinet, described power supply provides the voltage and the signal of computing machine each several part work, it is characterized in that, comprising:
One AC signal modulate circuit, it comprises attenuator, AC/DC converter, I/DC converter, Hz/DC converter or sensor again, difference according to the alternating current parameter that will monitor is selected for use, the input of AC signal modulate circuit is connected on the AC power of computing machine input end, convert each alternating current parameter signal to d. c. voltage signal respectively, the output of AC signal modulate circuit connects the input of observation circuit
One observation circuit, it comprises A/D converter and System Management Bus interface again, and the input of A/D converter connects the output of AC signal modulate circuit, the O connection system management bus interface of A/D converter, by System Management Bus output,
One System Management Bus is connected to main frame with the alternating current parameter after the above-mentioned conversion by System Management Bus, with main frame monitoring power supply alternating current parameter state,
Wherein, alternating current parameter comprises alternating voltage, complete machine alternating current, AC power frequency at least, uses foregoing circuit and System Management Bus, finishes the workflow of monitoring power supply alternating current parameter in main frame, comprises the steps:
The alternating current parameter that reception measures;
Calculate the instantaneous power of computing machine and the accumulative total power consumption that is consumed according to alternating voltage, complete machine alternating current;
Show alternating current parameter, instantaneous power and accumulative total power consumption parameter;
Judge that whether the alternating voltage, complete machine alternating current and the AC power frequency that measure exceed the parameter area of permission, if exceed the scope of permission, then produce warning message.
System Management Bus in the power supply links to each other with the System Management Bus of main frame.
Described computer power supply, its feature also is:
System Management Bus connector on the clock line of described System Management Bus and data line and the main frame on expansion board clamping or the computer main frame panel links to each other, and expansion board clamping is PCI Express integrated circuit board, PCI integrated circuit board, PCI-X integrated circuit board or CNR integrated circuit board.
Described computer power supply, its feature also is:
Described observation circuit is that core constitutes with the IC chip, and integrated A/D converter and System Management Bus interface on the IC chip, IC chip is as the slave unit on the System Management Bus, and System Management Bus IC chip is the IC chip of compatible with it I2C bus.
Described computer power supply, its feature also is:
Also integrated temperature survey, fan speed measurement and function of controlling fan rotating speed on the IC chip of described observation circuit.
Described computer power supply, its feature also is:
The AC signal modulate circuit is provided with overcurrent and overvoltage protection circuit, and observation circuit is provided with filtering circuit.To reduce electromagnetic interference (EMI) and Radio frequency interference (RFI).
Described computer power supply, its feature also is:
Computer power supply is desktop PC's power supply, industrial computer power supply, server power supply, intelligence instrument power supply and have CPU and the device power supply (DPS) of SMBUS.
Beneficial effect: use the present invention, the AC supply voltage used of metering computer in real time for the safe operation of computer system provides parameter, is passed through the measurement to alternating current simultaneously, and energy consumption that can computing computer is of value to energy-conservation management.
Description of drawings
Fig. 1 is the theory diagram of computer power supply of the present invention
Fig. 2 is the workflow diagram of computer power supply of the present invention
Fig. 3 is the circuit diagram of computer power supply embodiment observation circuit of the present invention
Fig. 4 is a SMBUS jointing on the main frame
Embodiment
Below in conjunction with accompanying drawing and disclosed patented claim the present invention is elaborated.
All be integrated with ICH# on the mainboard of Intel family computer and clone thereof, be commonly called as South Bridge chip, South Bridge chip inside provides SMBus primary controller, can realize management and detect SMBus, as initial, stop, tranmitting data register etc., all reading and writing operations all can reduce the master mode of SMBus, the SMBus interface device can have one 7 bit address, can expand a plurality of bus devices, the present invention uses SMBus IC chip as bus slave.
Embodiment: edition with parallel text invention Fig. 1, Fig. 2, Fig. 3, Fig. 4, this power supply provide the voltage and the signal of computing machine each several part work :+5V ,+12V, PS-ON ..., AC signal modulate circuit, observation circuit and System Management Bus are set in power supply simultaneously.
Embodiment circuit theory such as Fig. 3, computing machine uses the two cpu server mainboards of ASUS in this example, model is PR-DLS533, the SMBus jointing is arranged on this mainboard, as Fig. 4, also the SMBus jointing can be set at the expansion board clamping of computing machine, connect SCL and SDA from it in power supply, to SCL and the SDA of invention circuit W83L785.In power supply, the IC chip is selected W83L785 for use, and W83L785 is usually used in the hardware monitoring circuit of computing machine, and monitoring parameter comprises: voltage, temperature, rotation speed of the fan, built-in 8 ADC, 2 groups of PWM output control rotation speeds of the fan are provided, provide SMI#, OUT# signal and GPIO, the compatible SMBus interface of band I2C/, by application software and BIOS, the user can monitor whole parameters at any time, and the information that gives a warning when parameter is out-of-limit, and the user can be provided with the high and low limit value of parameter voluntarily.
The major function of W83L785 is as follows:
2 temperature survey passages, VTIN1, VTIN2 support semiconductor and thermistor (temperature) sensor
4 voltage measurement passages, 3.3V, 2.5V, 1.5V, V
Core
2 groups of PWM rotation speed of the fan control outputs, PWMOUT1, PWMOUT2
The input of 2 groups of rotation speed of the fan countings, FANIN1, FANIN2
The out-of-limit interval of parameter that is provided with able to programme
The management of support application software
The I2C serial bus interface, SCL, SDA
Support intel program LMCD
The interruption guard signal is arranged
The encapsulation of 20 pin
Working power 2.7V～5.5V
See the W83L785 instructions for details.
Because its inside is integrated A/D converter and System Management Bus interface, be fit to the requirement of observation circuit, its use+5V makes the work power supply, 4 voltage measurement input ends are arranged, can measure respectively+3.3V, + 2.5V, the voltage of+1.5V and Vcore range, here use these voltage measurement ports to connect the d. c. voltage signal of behind the AC signal modulate circuit, exporting, they have represented alternating current parameter, alternating current parameter after the A/D conversion is transferred to main frame by System Management Bus, SCL and SDA are clock line and the data lines of SMBUS, by connecting lead and jointing J1 to main frame, by the computer program computing, show alternating current parameter, and store and send warning message as required.Equally also can use other IC chip, finish as the LM85 integrated circuit.
The AC signal modulate circuit comprises attenuator, AC/DC converter, I/DC converter, Hz/DC converter, above-mentioned converter also can use sensor to replace, can use according to the difference of the alternating current parameter that will monitor, the input of signal conditioning circuit is connected on the ac input end of computer power supply, convert each alternating current parameter signal to d. c. voltage signal respectively, the output of signal conditioning circuit connects W83L785
When the monitoring alternating voltage,
Promptly measure alternating voltage effective value (RMS), after comprising, the AC signal modulate circuit connects attenuator and AC/DC converter, the attenuator input is connected on the AC power of computing machine input end, connect the AC/DC converter then, the alternating voltage Parameters Transformation is become d. c. voltage signal U1, the A/D converter of Input Monitor Connector circuit, connection+3.3V voltage port here.
When monitoring complete machine alternating current (RMS), the AC signal modulate circuit comprises I/DC converter (current sensor), its input string is connected on the computing machine input end AC power cord, complete machine alternating current Parameters Transformation is become d. c. voltage signal U2, the A/D converter of Input Monitor Connector circuit, connection+2.5V voltage port here.
When the monitoring AC power frequency, the AC signal modulate circuit comprises Hz/DC converter (frequency sensor), its input is connected on the AC power cord of computing machine input end, convert AC power frequency to d. c. voltage signal, the alternating voltage Parameters Transformation is become d. c. voltage signal U3, the A/D converter of Input Monitor Connector circuit, connection+1.5V voltage port here.
If the output voltage of AC signal modulate circuit greater than the input of A/D, can mate with the resistor network step-down; Otherwise, can add amplifying element.In order to protect the safety of computing machine; the AC signal modulate circuit is provided with overcurrent and overvoltage protection circuit; simultaneously; in order to reduce electromagnetic interference (EMI) and Radio frequency interference (RFI); observation circuit is provided with wave filter; R1, C1, R2, C2, R3, C3 have filtering and isolation features, and R8, R9 are the SMBUS pull-up resistors.C5, C6 are filter capacitors.
Alternating voltage parameter after the above-mentioned conversion is exported by System Management Bus, transfer to main frame by System Management Bus, by sequential monitoring power supply alternating current parameter, and can go out other electrical quantity according to the power supply alternating current calculation of parameter of monitoring, as the AC power factor, exchange idle factor, computing machine instantaneous power and accumulative total power consumption.
Also monitor power supply fan among Fig. 3 with W83L785.D1 is used for temperature survey among Fig. 3, from the TDX1 input signal.W83L7851 has used individual PWM control output, but drive fan, and the rotating speed of fan can be measured, and forms the tach signal match circuit with R5, R6, R7.PWM1 output drives Q, and with the control function construction system of IC chip, relevant control algorithm is carried out in W83L785.General I/O (GPIO#) on the IC chip is not used.
Claims (8)
1, a kind of composing method of computer power supply, power supply provide required voltage of computer operation and signal, it is characterized in that, comprise the steps:
(a) AC signal modulate circuit and observation circuit are set in power supply, the input of signal conditioning circuit is connected on the AC power of computing machine input end, converts the alternating current parameter signal to d. c. voltage signal respectively,
(b) output of signal conditioning circuit connects the input of observation circuit, and observation circuit comprises A/D converter and System Management Bus interface, the O connection system management bus interface of A/D converter, and by System Management Bus output,
(c) alternating current parameter after the above-mentioned conversion is transferred to main frame by System Management Bus, by main frame monitoring power supply alternating current parameter;
Wherein, alternating current parameter comprises alternating voltage, complete machine alternating current, AC power frequency at least; The workflow of alternating current parameter running status in the main frame monitoring power supply comprises the steps: in step (c)
The alternating current parameter that reception measures;
Calculate the instantaneous power of computing machine and the accumulative total power consumption that is consumed according to alternating voltage, complete machine alternating current;
Show alternating current parameter, instantaneous power and accumulative total power consumption parameter;
Judge that whether the alternating voltage, complete machine alternating current and the AC power frequency that measure exceed the parameter area of permission, if exceed the scope of permission, then produce warning message.
2, the composing method of computer power supply according to claim 1, it is characterized in that, described AC signal modulate circuit comprises attenuator, AC/DC converter, I/DC converter, Hz/DC converter, above-mentioned converter is also referred to as the ac electric sensor, selects for use according to the difference of the alternating current parameter signal of being monitored.
3, the composing method of computer power supply according to claim 1 is characterized in that, System Management Bus SMBUS is compatible I2C bus.
4, a kind of computer power supply is installed in the computer cabinet, and described power supply provides the voltage and the signal of computing machine each several part work, it is characterized in that, comprising:
One AC signal modulate circuit, it comprises attenuator, AC/DC converter, I/DC converter, Hz/DC converter or sensor again, difference according to the alternating current parameter that will monitor is selected for use, the input of AC signal modulate circuit is connected on the AC power of computing machine input end, convert each alternating current parameter signal to d. c. voltage signal respectively, the output of AC signal modulate circuit connects the input of observation circuit
One observation circuit, it comprises A/D converter and System Management Bus interface again, and the input of A/D converter connects the output of AC signal modulate circuit, the O connection system management bus interface of A/D converter, by System Management Bus output,
One System Management Bus is connected to main frame with the alternating current parameter after the above-mentioned conversion by System Management Bus, with main frame monitoring power supply alternating current parameter state,
Wherein, alternating current parameter comprises alternating voltage, complete machine alternating current, AC power frequency at least, uses foregoing circuit and System Management Bus, finishes the workflow of monitoring power supply alternating current parameter in main frame, comprises the steps:
The alternating current parameter that reception measures;
Calculate the instantaneous power of computing machine and the accumulative total power consumption that is consumed according to alternating voltage, complete machine alternating current;
Show alternating current parameter, instantaneous power and accumulative total power consumption parameter;
Judge that whether the alternating voltage, complete machine alternating current and the AC power frequency that measure exceed the parameter area of permission, if exceed the scope of permission, then produce warning message;
System Management Bus in the power supply links to each other with the System Management Bus of main frame.
5, computer power supply according to claim 4 is characterized in that:
System Management Bus connector on the clock line of described System Management Bus and data line and the main frame on expansion board clamping or the computer main frame panel links to each other, and expansion board clamping is PCI Express integrated circuit board, PCI integrated circuit board, PCI-X integrated circuit board or CNR integrated circuit board.
6, computer power supply according to claim 4 is characterized in that:
Described observation circuit is that core constitutes with the IC chip, and integrated A/D converter and System Management Bus interface on the IC chip, IC chip is as the slave unit on the System Management Bus, and System Management Bus IC chip is the IC chip of compatible with it I2C bus.
7, computer power supply according to claim 6 is characterized in that:
Also integrated temperature survey, fan speed measurement and function of controlling fan rotating speed on the IC chip of described observation circuit.
8, computer power supply according to claim 4 is characterized in that:
The AC signal modulate circuit is provided with overcurrent and overvoltage protection circuit, and observation circuit is provided with filtering circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100192642A CN100351741C (en) | 2005-08-09 | 2005-08-09 | Computer power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100192642A CN100351741C (en) | 2005-08-09 | 2005-08-09 | Computer power supply |
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| Publication Number | Publication Date |
|---|---|
| CN1912801A CN1912801A (en) | 2007-02-14 |
| CN100351741C true CN100351741C (en) | 2007-11-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB2005100192642A Expired - Fee Related CN100351741C (en) | 2005-08-09 | 2005-08-09 | Computer power supply |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US9535813B2 (en) | 2008-08-20 | 2017-01-03 | Hewlett-Packard Development Company, L.P. | Systems and methods for providing information regarding resource consumption or environmental impact associated with usage of a computer |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2569190Y (en) * | 2002-09-23 | 2003-08-27 | 华为技术有限公司 | Fan rotary speed intelligent controller for electronic circuit system |
| US6622250B1 (en) * | 1999-12-21 | 2003-09-16 | Intel Corporation | SMBUS over the PCI bus isolation scheme and circuit design |
| CN1477529A (en) * | 2002-08-22 | 2004-02-25 | 联想(北京)有限公司 | Device for obtaining computer hardware information and method |
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2005
- 2005-08-09 CN CNB2005100192642A patent/CN100351741C/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6622250B1 (en) * | 1999-12-21 | 2003-09-16 | Intel Corporation | SMBUS over the PCI bus isolation scheme and circuit design |
| CN1477529A (en) * | 2002-08-22 | 2004-02-25 | 联想(北京)有限公司 | Device for obtaining computer hardware information and method |
| CN2569190Y (en) * | 2002-09-23 | 2003-08-27 | 华为技术有限公司 | Fan rotary speed intelligent controller for electronic circuit system |
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| CN1912801A (en) | 2007-02-14 |
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Granted publication date: 20071128 Termination date: 20110809 |