CN203490637U - Power supply state monitoring alarm circuit used for computer - Google Patents
Power supply state monitoring alarm circuit used for computer Download PDFInfo
- Publication number
- CN203490637U CN203490637U CN201320585416.5U CN201320585416U CN203490637U CN 203490637 U CN203490637 U CN 203490637U CN 201320585416 U CN201320585416 U CN 201320585416U CN 203490637 U CN203490637 U CN 203490637U
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- power supply
- resistance
- resistor
- voltage comparator
- potentiometer
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Abstract
The utility model discloses a power supply state monitoring alarm circuit used for a computer. The power supply state monitoring alarm circuit comprises a first resistor, a second resistor, a third resistor, a fourth resistor, a fifth resistor, a voltage comparator, a diode and a potentiometer. The positive electrode of a power supply is simultaneously connected with the first end of the fifth resistor, the power supply positive electrode of the voltage comparator, the first end of the second resistor and the first end of the first resistor. The second end of the fifth resistor is simultaneously connected with the first end of the fourth resistor and the signal output end of the voltage comparator. The signal output end of the voltage comparator is the signal output end of the power supply state monitoring alarm circuit. The second end of the fourth resistor is simultaneously connected with the second end of the second resistor, the positive-electrode signal input end of the voltage comparator and the first end of the third resistor. The second end of the first resistor is simultaneously connected with the negative electrode of the diode and the negative-electrode signal input end of the voltage compressor. The second end of the third resistor is connected with the first end of the potentiometer. The positive electrode of the diode is simultaneously connected with the second end of the potentiometer, the sliding end of the potentiometer, the power supply negative electrode of the voltage comparator and the negative electrode of the power supply. By means of the power supply state monitoring alarm circuit, the power supply state of the power supply of the computer can be monitored and known in real time, people can be timely informed of power supply abnormities of the power supply of the computer, and problems can be solved timely.
Description
Technical field
The utility model relates to a kind of area of computer aided application circuit, relates in particular to a kind of power supply status monitoring, alarming circuit for computing machine.
Background technology
Computing machine belongs to light current product, that is to say that the operating voltage of parts is lower, generally in positive and negative 12 volts, and is direct current.And common civil power is 220 volts of (some country is 110 volts) alternating currents, can not directly on machine element, use.Therefore computing machine is the same with a lot of household electrical appliances needs a power unit, responsible common civil power is converted to the operable voltage of computing machine, is generally arranged on computer-internal.The core component operating voltage of computing machine is very low, and because computer operation frequency is very high, therefore higher to the requirement of power supply.The power supply of computing machine is on-off circuit at present, transfers common alternating current to direct current, then controls voltage by copped wave, different voltage is exported to respectively to the machine elements such as mainboard, hard disk, CD-ROM drive.And the power supply that active computer is used neither one observation circuit often, thereby not knowing the power supply state of power supply, when going wrong, cannot know in time, affect the use of computing machine.
Utility model content
The purpose of this utility model provides a kind of power supply status monitoring, alarming circuit for computing machine with regard to being in order to address the above problem.
The utility model is achieved through the following technical solutions above-mentioned purpose:
The utility model comprises the first resistance, the second resistance, the 3rd resistance, the 4th resistance, the 5th resistance, voltage comparator, diode and potentiometer, positive source simultaneously with the first end of described the 5th resistance, the positive source of described voltage comparator, the first end of described the second resistance is connected with the first end of described the first resistance, the second end of described the 5th resistance is connected with described the 4th first end of resistance and the signal output part of described voltage comparator simultaneously, the signal output part of described voltage comparator is the signal output part of described power supply status monitoring, alarming circuit, the second end while of described the 4th resistance and the second end of described the second resistance, the positive signal input end of described voltage comparator is connected with the first end of described the 3rd resistance, the second end of described the first resistance is connected with the negative pole of described diode and the negative signal input end of described voltage comparator simultaneously, the second end of described the 3rd resistance is connected with the first end of described potentiometer, the anodal while of described diode and the second end of described potentiometer, the sliding end of described potentiometer, the power cathode of described voltage comparator is connected with power cathode.
The beneficial effects of the utility model are:
The utility model is a kind of power supply status monitoring, alarming circuit for computing machine, power supply state for monitoring calculation electromechanical source, can know in real time the power supply state of computer power supply, when computer power supply power supply appearance is abnormal, know in time, solve a problem promptly, and circuit structure of the present utility model is simple, adopt element few, with low cost, is conducive to promote.
Accompanying drawing explanation
Fig. 1 is circuit structure schematic diagram of the present utility model.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail:
As shown in Figure 1: the utility model comprises the first resistance R 1, the second resistance R 2, the 3rd resistance R 3, the 4th resistance R 4, the 5th resistance R 5, voltage comparator ic, diode VD and potentiometer RP, positive source Vcc simultaneously with the first end of the 5th resistance R 5, the positive source of voltage comparator ic, the first end of the second resistance R 2 is connected with the first end of the first resistance R 1, the second end of the 5th resistance R 5 is connected with the 4th first end of resistance R 4 and the signal output part of voltage comparator ic simultaneously, the signal output part of voltage comparator ic is the signal output part U of power supply status monitoring, alarming circuit, the second end while of the 4th resistance R 4 and the second end of the second resistance R 2, the positive signal input end of voltage comparator ic is connected with the first end of the 3rd resistance R 3, the second end of the first resistance R 1 is connected with the negative pole of diode VD and the negative signal input end of voltage comparator ic simultaneously, the second end of the 3rd resistance R 3 is connected with the first end of potentiometer RP, the anodal while of diode VD and the second end of potentiometer RP, the sliding end of potentiometer RP, the power cathode of voltage comparator ic is connected with power cathode.
As shown in Figure 1: when supply voltage is low; it can outputting alarm signal; make computing machine make immediately the treatment measures of protected data; reference voltage in circuit is determined by the voltage stabilizing value of diode VD; select as required different voltage stabilizing values, the input voltage of voltage comparator is mainly determined by the partial pressure value of the second resistance R 1, the 3rd resistance R 3 and potentiometer RP.
Claims (1)
1. the power supply status monitoring, alarming circuit for computing machine, it is characterized in that: comprise the first resistance, the second resistance, the 3rd resistance, the 4th resistance, the 5th resistance, voltage comparator, diode and potentiometer, positive source simultaneously with the first end of described the 5th resistance, the positive source of described voltage comparator, the first end of described the second resistance is connected with the first end of described the first resistance, the second end of described the 5th resistance is connected with described the 4th first end of resistance and the signal output part of described voltage comparator simultaneously, the signal output part of described voltage comparator is the signal output part of described power supply status monitoring, alarming circuit, the second end while of described the 4th resistance and the second end of described the second resistance, the positive signal input end of described voltage comparator is connected with the first end of described the 3rd resistance, the second end of described the first resistance is connected with the negative pole of described diode and the negative signal input end of described voltage comparator simultaneously, the second end of described the 3rd resistance is connected with the first end of described potentiometer, the anodal while of described diode and the second end of described potentiometer, the sliding end of described potentiometer, the power cathode of described voltage comparator is connected with power cathode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320585416.5U CN203490637U (en) | 2013-09-23 | 2013-09-23 | Power supply state monitoring alarm circuit used for computer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320585416.5U CN203490637U (en) | 2013-09-23 | 2013-09-23 | Power supply state monitoring alarm circuit used for computer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203490637U true CN203490637U (en) | 2014-03-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320585416.5U Expired - Fee Related CN203490637U (en) | 2013-09-23 | 2013-09-23 | Power supply state monitoring alarm circuit used for computer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203490637U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107037869A (en) * | 2017-04-21 | 2017-08-11 | 商洛学院 | A kind of computer power supply monitor |
| CN113495606A (en) * | 2020-03-19 | 2021-10-12 | 三星电子株式会社 | Power manager circuit and electronic device for detecting internal errors |
-
2013
- 2013-09-23 CN CN201320585416.5U patent/CN203490637U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107037869A (en) * | 2017-04-21 | 2017-08-11 | 商洛学院 | A kind of computer power supply monitor |
| CN113495606A (en) * | 2020-03-19 | 2021-10-12 | 三星电子株式会社 | Power manager circuit and electronic device for detecting internal errors |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: SHENZHEN XINDONGLIN ELECTRON CO., LTD. Free format text: FORMER OWNER: CHENGDU SIFEIKESI INFORMATION TECHNOLOGY CO., LTD. Effective date: 20141009 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 610000 CHENGDU, SICHUAN PROVINCE TO: 518105 SHENZHEN, GUANGDONG PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20141009 Address after: Baoan District Songgang Tangxia street Shenzhen city Guangdong province 518105 Chung Industrial Zone Third Osmanthus Road No. 1 building A Patentee after: Shenzhen xindonglin Electronics Co., Ltd. Address before: 610000 No. 1480, north section of Tianfu Road, Chengdu high tech Zone, Sichuan Patentee before: SFX INFO INTERNATIONAL PTE LTD. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140319 Termination date: 20150923 |
|
| EXPY | Termination of patent right or utility model |