CN102073366B - Method for electrifying computer power supply chip - Google Patents
Method for electrifying computer power supply chip Download PDFInfo
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- CN102073366B CN102073366B CN 201010603939 CN201010603939A CN102073366B CN 102073366 B CN102073366 B CN 102073366B CN 201010603939 CN201010603939 CN 201010603939 CN 201010603939 A CN201010603939 A CN 201010603939A CN 102073366 B CN102073366 B CN 102073366B
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Abstract
The invention provides a method for electrifying a computer power supply chip. The method is mainly used for detecting, analyzing and judging the input voltage and reference voltage or the reference current of a +5V auxiliary power supply to achieve the aim of controlling the enable signals of other units of the chip, the opening signal of a voltage stabilizing unit of the chip and the opening signal of a switching tube of the chip. The method has the beneficial effect of orderly controlling the working states of the units of one category of computer power supply master control chips which integrate voltage stabilizing circuits into the chips, thus ensuring the computer power supply to work safely.
Description
Technical field
The invention belongs to integrated circuit fields, relate in particular to the computer power supply adhesive integrated circuit.
Background technology
After the power-supply management system of power supply adhesive integrated circuit and composition thereof relates generally to different input voltages and input current is handled; Output required voltage and electric current have some kinds in the defencive functions such as overvoltage protection, overcurrent protection, overload protection, overheat protector simultaneously.
Usually desktop computer power supplies all is the power supply that meets the ATX standard, and this type power supply all has main control chip, and the power supply of such chip is provided+5V accessory power supply (5VSB) by power-supply system.As long as desktop computer power supplies one energising; + 5V accessory power supply will be added in the power pin of such chip; When one of chip specific pin (being generally PSON) becomes low level (being generally 0V) by high level (being generally 5V); When other rated condition satisfied, this computer power supply will normally move simultaneously, was the power supply of hardware such as mainboard.
General chip internal device all has certain normal range of operation; When exceeding this scope; Device meeting operation irregularity; Even can make the computer power supply maloperation, particularly+when the 5V accessory power supply had just begun to be added to the power pin of chip, the power pin of chip can rise to 5V from 0V in the regular hour.The power pin voltage of chip if the duty of each unit of chip internal is not carried out ordered control, may cause the computer power supply cisco unity malfunction, even can damage computing machine in this uphill process.
Summary of the invention
The technical matters that the present invention will solve is: the powering method that a kind of computer-electrical source chip is provided; The duty that mu balanced circuit is integrated into one type of each unit of computer power supply main control chip of chip internal is carried out ordered control, thereby the assurance computer power supply is worked safely.
The present invention solves the problems of the technologies described above the technical scheme of being taked to be: a kind of powering method of computer-electrical source chip is characterized in that: it comprises following steps:
1) set be added in computer power supply chip power pin+two the setting V1 and the V2 of 5V accessory power supply voltage, wherein V1 is high assigned voltage, V2 is low assigned voltage, and V1 >=V2; The reference voltage that setting chip is inner or the setting VREF or the IREF of reference current;
2) to computer power supply chip power pin+input value of 5V accessory power supply voltage detects;
3) reference voltage or the reference current to the computer power supply chip internal detects;
4) when input value during greater than high assigned voltage V1,
A, give the voltage regulation unit enabling signal;
B, give the switching tube enabling signal;
C, if this moment reference voltage or reference current reach setting VREF or IREF and stable, export effective enable signal so and give other unit of computer-electrical source chip;
5) when voltage regulation unit is in opening, if detect computer power supply chip power pin+input value of 5V accessory power supply voltage is less than low assigned voltage V2, then to the voltage regulation unit shutdown signal;
6) when switching tube is in opening, if detect computer power supply chip power pin+input value of 5V accessory power supply voltage is less than low assigned voltage V2, then to the switching tube shutdown signal.
Press such scheme, among the described step 4) c reference voltage or reference current are reached setting VREF or IREF and stable judgement, realize through behind detection reference voltage or reference current, increasing delay circuit.
Principle of work of the present invention is: the duty to each unit of chip internal is carried out ordered control; Mainly be control to the reference voltage or the reference current of chip internal; If reference voltage or reference current reach the scope of regulation; But then other unit operate as normal then in the chip, so the present invention is mainly right+and the input voltage of 5V accessory power supply and reference voltage or reference current detect, analyze and judge, finally reaches the purpose of each cell operation state of control chip.
In general; One tunnel specific 3.3V output of+5V accessory power supply and computer power supply system all needs independently mu balanced circuit respectively; When one type of main control chip was integrated into chip internal to above-mentioned mu balanced circuit, the ordered control of its state just seemed and is even more important, particularly+and the 5V accessory power supply; Because the power supply of chip is provided by+5V accessory power supply, and+voltage stabilizing of 5V accessory power supply provides by chip.
Computer power supply system all is a Switching Power Supply, and chip internal all has switching tube, also is very important to the switching tube ordered control.The unlatching of switching tube depends on+voltage and other control module two parts of signals of 5V accessory power supply, and the input voltage of emphasis of the present invention through detection+5V accessory power supply comes to the switching tube start signal, other control modules are not emphasis of the present invention.
Beneficial effect of the present invention is:
1, when powering on, carries out ordered control through duty, guarantee that computer power supply works safely one type of each unit of computer power supply main control chip mu balanced circuit being integrated into chip internal.
Description of drawings
Fig. 1 is the fundamental diagram of one embodiment of the invention
Embodiment
Fig. 1 is the fundamental diagram of one embodiment of the invention, and it comprises following steps:
1) set be added in computer power supply chip power pin+two the setting V1 and the V2 of 5V accessory power supply voltage, wherein V1 is high assigned voltage, V2 is low assigned voltage, and V1 >=V2; The reference voltage that setting chip is inner or the setting VREF or the IREF of reference current;
2) to computer power supply chip power pin+input value of 5V accessory power supply voltage detects;
3) reference voltage or the reference current to the computer power supply chip internal detects;
4) when input value during greater than high assigned voltage V1,
A, give the voltage regulation unit enabling signal;
B, give the switching tube enabling signal;
C, if this moment reference voltage or reference current reach setting VREF or IREF and stable, export effective enable signal so and give other unit of computer-electrical source chip;
5) when voltage regulation unit is in opening, if detect computer power supply chip power pin+input value of 5V accessory power supply voltage is less than low assigned voltage V2, then to the voltage regulation unit shutdown signal;
6) when switching tube is in opening, if detect computer power supply chip power pin+input value of 5V accessory power supply voltage is less than low assigned voltage V2, then to the switching tube shutdown signal.
The supply voltage detecting unit be used for detecting be added in the chip power pin+voltage of 5V accessory power supply.When be added in the chip power pin+voltage of 5V accessory power supply is during greater than high assigned voltage V1, chip lets voltage regulation unit start working at once, so that one tunnel specific 3.3V output of stable+5V accessory power supply and computer power supply system.And when be added in the chip power pin+voltage of 5V accessory power supply is during less than low assigned voltage V2, chip is forbidden voltage regulation unit work at once, in case system exception.
Only be added in simultaneously the chip power pin+voltage of 5V accessory power supply is during greater than V1; Chip just lets switching tube work; Whether work as for switching tube and also to receive the control of other control module; When having only these two unit let its work simultaneously, switching tube just begins operate as normal, otherwise switching tube is closed.And when be added in the chip power pin+voltage of 5V accessory power supply is during less than V2, switching tube is closed at once.
V1 is always greater than (or equaling) V2, to prevent forming vibration, causes the frequent switch of above-mentioned functions and cannot stop.
When the voltage of+5V accessory power supply had just begun to be added to the power pin of chip, the power pin of chip can rise to 5V from 0V in the regular hour, and in this course, the reference voltage of chip internal or reference current can begin to produce.After reference voltage or reference current reach setting VREF or IREF and stablized certain hour (being suitable time-delay); Then import a useful signal to logical block; Simultaneously the supply voltage detection to be added in the chip power pin+voltage of 5V accessory power supply during greater than V1 useful signal of input arrive logical block; Logical block is just exported effective enable signal when having only above-mentioned two useful signals to possess simultaneously, otherwise enable signal is invalid.When having only enable signal effective, other unit of chip just begins to get into successively duty.
Claims (2)
1. the powering method of a computer-electrical source chip is characterized in that: comprise following steps:
1) set be added in computer power supply chip power pin+two the setting V1 and the V2 of 5V accessory power supply voltage, wherein V1 is high assigned voltage, V2 is low assigned voltage, and V1 >=V2; The reference voltage that setting chip is inner or the setting VREF or the IREF of reference current;
2) to computer power supply chip power pin+input value of 5V accessory power supply voltage detects;
3) reference voltage or the reference current to the computer power supply chip internal detects;
4) when input value during greater than high assigned voltage V1,
A, give the voltage regulation unit enabling signal;
B, give the switching tube enabling signal;
C, if this moment reference voltage or reference current reach setting VREF or IREF and stable, export effective enable signal so and give other unit of computer-electrical source chip;
5) when voltage regulation unit is in opening, if detect computer power supply chip power pin+input value of 5V accessory power supply voltage is less than low assigned voltage V2, then to the voltage regulation unit shutdown signal;
6) when switching tube is in opening, if detect computer power supply chip power pin+input value of 5V accessory power supply voltage is less than low assigned voltage V2, then to the switching tube shutdown signal.
2. the powering method of computer-electrical source chip according to claim 1; It is characterized in that: reference voltage or reference current reach setting VREF or IREF and stable among the described step 4) c, are meant that reference voltage or reference current reach behind setting VREF or the IREF through predetermined delay time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010603939 CN102073366B (en) | 2010-12-24 | 2010-12-24 | Method for electrifying computer power supply chip |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010603939 CN102073366B (en) | 2010-12-24 | 2010-12-24 | Method for electrifying computer power supply chip |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102073366A CN102073366A (en) | 2011-05-25 |
| CN102073366B true CN102073366B (en) | 2012-12-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201010603939 Expired - Fee Related CN102073366B (en) | 2010-12-24 | 2010-12-24 | Method for electrifying computer power supply chip |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113656341B (en) * | 2021-10-21 | 2022-02-18 | 苏州浪潮智能科技有限公司 | Chip starting control circuit and server |
| CN116300665B (en) * | 2023-05-24 | 2023-10-13 | 山东宏桥新型材料有限公司 | Linkage interlocking control circuit of air cannon |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN100357856C (en) * | 2005-03-25 | 2007-12-26 | 威盛电子股份有限公司 | Computer host board and its power controller |
| CN101414748B (en) * | 2007-10-19 | 2013-03-06 | 深圳迈瑞生物医疗电子股份有限公司 | Method for starting control circuit and protecting power supply control chip |
| CN101242138B (en) * | 2008-03-05 | 2011-02-09 | 艾默生网络能源有限公司 | A startup auxiliary power circuit |
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2010
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| CN102073366A (en) | 2011-05-25 |
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Effective date of registration: 20191209 Address after: 221300 No. 1 Zhangjiagang East Road, Yitang Town, Pizhou City, Xuzhou City, Jiangsu Province Patentee after: Pizhou Binhe SME Management Service Co., Ltd. Address before: 215011 No. 198 Xiangyang Road, hi tech Zone, Jiangsu, Suzhou Patentee before: Suzhou Huaxin Microelectronics Co., Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121212 Termination date: 20191224 |