CN212515781U - Computer abnormity alarm device - Google Patents
Computer abnormity alarm device Download PDFInfo
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- CN212515781U CN212515781U CN202021579196.1U CN202021579196U CN212515781U CN 212515781 U CN212515781 U CN 212515781U CN 202021579196 U CN202021579196 U CN 202021579196U CN 212515781 U CN212515781 U CN 212515781U
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Abstract
The utility model discloses a computer anomaly alarm device belongs to electron technical field, including arrangement circuit, overvoltage switch protection circuit, undervoltage protection circuit, warning circuit and stand-by power supply circuit. Through setting up overvoltage switch protection circuit, when input voltage is higher than the confined voltage, carry out the separation to voltage, then stand-by power supply circuit supplies power, the mainboard circuit has been prevented to burn out by the high pressure, simultaneously when input power is undervoltage, undervoltage protection circuit detects, and separation input voltage, then supply power by stand-by power supply circuit, can send the warning suggestion simultaneously, when interim outage, stand-by power supply circuit supplies power for mainboard circuit, and report to the police, then the file that the user can in time save not save.
Description
Technical Field
The utility model relates to the field of electronic technology, especially, relate to a computer anomaly alarm device.
Background
The Internet-based combo software is an application system that can satisfy a user's demand by combining Web service resources distributed on the Internet. As a novel software form, particularly the emergence and development of novel computing modes such as cloud computing and the Internet of things in recent years, the method attracts extensive attention in academic circles and industrial circles all over the world. With the advent of the big data age, combined software has not only grown dramatically in number, but has also gained widespread use in more and more fields. However, due to the loose coupling of the combined software, the autonomy of the service resources, the dynamics and uncertainty of the operating environment, which all cause many new and more complex exceptions to the combined software during operation, the availability and credibility of the software face more serious challenges. The operation of the software is an unstable hardware operation base, and the operation of the existing computer is often affected by the supply voltage. For example, when a computer is in overvoltage, undervoltage and the like, running software can be affected, but the problem of power supply or software cannot be seen on the surface, so that the problem of power supply needs to be solved from the direction of hardware, and the problems of various card machines and card software in calculation can be better judged subsequently.
The existing desktop computer does not protect against overvoltage, undervoltage and temporary power failure, so an abnormal alarm circuit needs to be designed.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a computer abnormity alarm device solves the technical problem that current desktop computer does not have excessive pressure, under-voltage and the unusual warning of interim outage.
The utility model provides a computer anomaly alarm device, includes arrangement circuit, overvoltage switch protection circuit, undervoltage protection circuit, alarm circuit and stand-by power supply circuit, the input and the outside power connection of arrangement circuit, the arrangement circuit is connected with undervoltage protection circuit through overvoltage switch protection circuit, undervoltage protection circuit is connected with stand-by power supply circuit through alarm circuit, stand-by power supply circuit is connected with the load, overvoltage switch protection circuit includes voltage detection subcircuit and switch subcircuit, voltage detection subcircuit is connected with switch subcircuit, voltage detection subcircuit's input and arrangement circuit connection.
The voltage detection sub-circuit comprises a resistor R1, a resistor R4, diodes D1-D2 and a triode Q1, one end of the resistor R1 is connected with the sorting circuit, the other end of the resistor R1 is connected with the output end of the diode D1 and one end of the resistor R4 respectively, the input end of the diode D1 is grounded, the other end of the resistor R4 is connected with the input end of the diode D2 and the b pole of the triode Q1 respectively, and the c pole of the triode Q1 is connected with the switch sub-circuit.
The switch sub-circuit comprises resistors R2-R3 and a mos tube Q2, one end of the resistor R3 is grounded, the other end of the resistor R3 is connected with one end of the resistor R2, the e pole of the triode Q1 and the G pole of the mos tube Q2 respectively, one end of the resistor R2 is connected with the S pole of the mos tube Q2, and the D pole of the mos tube Q2 is an output end.
The undervoltage protection circuit comprises a resistor R5-R6, a diode D3 and a triode Q3, one end of the resistor R5 is connected with the D pole of a mos tube Q2 and the e pole of the triode Q3, the other end of the resistor R5 is connected with one end of the resistor R6 and the b pole of the triode Q3, the other end of the resistor R6 is grounded, and the c pole of the triode Q3 is connected with an alarm circuit.
Alarm circuit includes resistance R7-R8, diode D4, triode Q4, electric capacity C1 and loudspeaker B, the one end of resistance R7 is connected with diode D4's input and triode Q3's C utmost point, resistance R7's the other end and triode Q4B utmost point are connected, resistance R8's one end and triode Q4's C utmost point are connected, and the other end is connected with diode D4's output, electric capacity C1's anodal, triode Q4's e utmost point is through loudspeaker B ground connection, electric capacity C1's negative pole ground connection.
The standby power supply circuit comprises a battery E and a diode D5, wherein the input end of the diode D5 is connected with the anode of a capacitor C1, the output end of the diode D5 is connected with the anode of the battery E, and the cathode of the battery E is grounded.
The utility model adopts the above technical scheme, the utility model discloses following technological effect has:
the utility model discloses a set up overvoltage switch protection circuit, when the input voltage is higher than the confined voltage, carry out the separation to voltage, then stand-by power supply circuit supplies power, the mainboard circuit has been prevented to burn out by the high pressure, simultaneously when the input power is undervoltage, undervoltage protection circuit detects, and separation input voltage, then by stand-by power supply circuit power supply, can send the warning suggestion simultaneously, when interim outage, stand-by power supply circuit supplies power for the mainboard circuit, and report to the police, then the file that the user can in time save not save.
Drawings
Fig. 1 is a schematic circuit diagram of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clear, preferred embodiments are described in detail. It should be understood, however, that the numerous specific details set forth in the specification are merely set forth to provide a thorough understanding of one or more aspects of the present invention, which may be practiced without these specific details.
The utility model provides a computer anomaly alarm device, as shown in figure 1, including arrangement circuit, overvoltage switch protection circuit, undervoltage protection circuit, alarm circuit and stand-by power supply circuit, arrangement circuit's input and outside power connection, arrangement circuit is connected with undervoltage protection circuit through overvoltage switch protection circuit, undervoltage protection circuit is connected with stand-by power supply circuit through alarm circuit, stand-by power supply circuit is connected with the load, overvoltage switch protection circuit includes voltage detection subcircuit and switch subcircuit, voltage detection subcircuit is connected with switch subcircuit, voltage detection subcircuit's input and arrangement circuit connection. The finishing circuit is an existing rectifier bridge, and the voltage input by an external power supply is normally 12V.
The voltage detection sub-circuit comprises a resistor R1, a resistor R4, diodes D1-D2 and a triode Q1, one end of the resistor R1 is connected with the sorting circuit, the other end of the resistor R1 is connected with the output end of the diode D1 and one end of the resistor R4 respectively, the input end of the diode D1 is grounded, the other end of the resistor R4 is connected with the input end of the diode D2 and the b pole of the triode Q1 respectively, and the c pole of the triode Q1 is connected with the switch sub-circuit. The resistor R1 is 20K, the resistor R4 is 20K, and the transistor Q1 is MMBTA 92.
The switch sub-circuit comprises resistors R2-R3 and a mos tube Q2, one end of the resistor R3 is grounded, the other end of the resistor R3 is connected with one end of the resistor R2, the e pole of the triode Q1 and the G pole of the mos tube Q2 respectively, one end of the resistor R2 is connected with the S pole of the mos tube Q2, and the D pole of the mos tube Q2 is an output end. The resistance R2 is 100K, the resistance R3 is 10K, and the mos tube Q2 is IRF 9630.
When the voltage is within 12V, the voltage regulator tube D1 can not be conducted, so that Q1 is equivalent to being pulled up to an input power supply through two resistors R1 and R4 to be cut off, Q1 is a PNP tube, Q1 is cut off to be equivalent to being an open circuit, and the left part of the circuit (the voltage detection circuit) can be removed. Q2 will be on and the switching circuit will have an output to power the rear embedded system.
When the input voltage exceeds 12V, the voltage regulator is conducted, and the cathode voltage of the voltage regulator is maintained at 12V, so that the BE interelectrode voltage of Q1 is not 0, the triode is conducted, the gate voltage of Q2 is equal to the source voltage, the source voltage is disconnected, and the power supply of the following embedded system is disconnected. D2 is to protect the BE voltage of the triode from exceeding the range, and the voltage-stabilizing value of the voltage-stabilizing tube is not higher than the range that the BE interstage voltage of the triode can bear.
The undervoltage protection circuit comprises a resistor R5-R6, a diode D3 and a triode Q3, one end of the resistor R5 is connected with the D pole of a mos tube Q2 and the e pole of the triode Q3, the other end of the resistor R5 is connected with one end of the resistor R6 and the b pole of the triode Q3, the other end of the resistor R6 is grounded, and the c pole of the triode Q3 is connected with an alarm circuit. The resistor R5 is 33K, the resistor R6 is 20K, and the triode Q3 is D774.
Alarm circuit includes resistance R7-R8, diode D4, triode Q4, electric capacity C1 and loudspeaker B, the one end of resistance R7 is connected with diode D4's input and triode Q3's C utmost point, resistance R7's the other end and triode Q4B utmost point are connected, resistance R8's one end and triode Q4's C utmost point are connected, and the other end is connected with diode D4's output, electric capacity C1's anodal, triode Q4's e utmost point is through loudspeaker B ground connection, electric capacity C1's negative pole ground connection. Transistor Q4 is BC307 and resistor R8 is 20K.
The standby power supply circuit comprises a battery E and a diode D5, wherein the input end of the diode D5 is connected with the anode of a capacitor C1, the output end of the diode D5 is connected with the anode of the battery E, and the cathode of the battery E is grounded.
The resistor R53 and the resistor R6 form a voltage division module, when power input is normal, the divided voltage breaks down the diode D3, the base of the triode Q3 is electrified through the resistor R5 and the diode D3, the triode Q3 is conducted, the voltage supplies power to the circuit main board after passing through the diode D4 and the diode D5, meanwhile, the base of the triode Q4 is electrified through the resistor R7, therefore, Q4 is not conducted, the horn B does not work, the capacitor C1 and the storage battery E are both charged, when power failure occurs, the base voltage of the triode Q4 disappears, the capacitor C1 discharges to the Q4 through the resistor R8, therefore, the Q4 is conducted, the horn B gives power failure alarm sound, the storage battery E supplies power to the circuit main board, when the power failure occurs, the voltage of the storage battery E is not enough to break down the diode D3, the Q3 is cut off, the alarm sound is given and the storage battery E supplies power.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (6)
1. A computer abnormity alarm device is characterized in that: including arrangement circuit, overvoltage switch protection circuit, undervoltage protection circuit, alarm circuit and stand-by power supply circuit, the input and the outside power connection of arrangement circuit, the arrangement circuit is connected with undervoltage protection circuit through overvoltage switch protection circuit, undervoltage protection circuit is connected with stand-by power supply circuit through alarm circuit, stand-by power supply circuit is connected with the load, overvoltage switch protection circuit includes voltage detection subcircuit and switch subcircuit, voltage detection subcircuit is connected with switch subcircuit, voltage detection subcircuit's input and arrangement circuit connection.
2. The computer abnormality warning device according to claim 1, characterized in that: the voltage detection sub-circuit comprises a resistor R1, a resistor R4, diodes D1-D2 and a triode Q1, one end of the resistor R1 is connected with the sorting circuit, the other end of the resistor R1 is connected with the output end of the diode D1 and one end of the resistor R4 respectively, the input end of the diode D1 is grounded, the other end of the resistor R4 is connected with the input end of the diode D2 and the b pole of the triode Q1 respectively, and the c pole of the triode Q1 is connected with the switch sub-circuit.
3. The computer abnormality warning device according to claim 2, characterized in that: the switch sub-circuit comprises resistors R2-R3 and a mos tube Q2, one end of the resistor R3 is grounded, the other end of the resistor R3 is connected with one end of the resistor R2, the e pole of the triode Q1 and the G pole of the mos tube Q2 respectively, one end of the resistor R2 is connected with the S pole of the mos tube Q2, and the D pole of the mos tube Q2 is an output end.
4. The computer abnormality warning device according to claim 3, characterized in that: the undervoltage protection circuit comprises a resistor R5-R6, a diode D3 and a triode Q3, one end of the resistor R5 is connected with the D pole of a mos tube Q2 and the e pole of the triode Q3, the other end of the resistor R5 is connected with one end of the resistor R6 and the b pole of the triode Q3, the other end of the resistor R6 is grounded, and the c pole of the triode Q3 is connected with an alarm circuit.
5. The computer abnormality warning device according to claim 4, characterized in that: alarm circuit includes resistance R7-R8, diode D4, triode Q4, electric capacity C1 and loudspeaker B, the one end of resistance R7 is connected with diode D4's input and triode Q3's C utmost point, resistance R7's the other end and triode Q4B utmost point are connected, resistance R8's one end and triode Q4's C utmost point are connected, and the other end is connected with diode D4's output, electric capacity C1's anodal, triode Q4's e utmost point is through loudspeaker B ground connection, electric capacity C1's negative pole ground connection.
6. The computer abnormality warning device according to claim 5, characterized in that: the standby power supply circuit comprises a battery E and a diode D5, wherein the input end of the diode D5 is connected with the anode of a capacitor C1, the output end of the diode D5 is connected with the anode of the battery E, and the cathode of the battery E is grounded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021579196.1U CN212515781U (en) | 2020-08-03 | 2020-08-03 | Computer abnormity alarm device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021579196.1U CN212515781U (en) | 2020-08-03 | 2020-08-03 | Computer abnormity alarm device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212515781U true CN212515781U (en) | 2021-02-09 |
Family
ID=74443887
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021579196.1U Expired - Fee Related CN212515781U (en) | 2020-08-03 | 2020-08-03 | Computer abnormity alarm device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212515781U (en) |
-
2020
- 2020-08-03 CN CN202021579196.1U patent/CN212515781U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| 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: 20210209 Termination date: 20210803 |