CN204066008U - There is the computer power supply of supply voltage bound detection alarm function - Google Patents
There is the computer power supply of supply voltage bound detection alarm function Download PDFInfo
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- CN204066008U CN204066008U CN201420559166.2U CN201420559166U CN204066008U CN 204066008 U CN204066008 U CN 204066008U CN 201420559166 U CN201420559166 U CN 201420559166U CN 204066008 U CN204066008 U CN 204066008U
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Abstract
The utility model discloses a kind of computer power supply with supply voltage bound detection alarm function, comprise computer power supply, power input terminal and detection alarm device circuit, power input terminal is connected with the input end of detection alarm device circuit, the output terminal of detection alarm device circuit is connected with the power input of computer power supply, it is characterized in that: described detection alarm device circuit comprises transformer, rectifier, electric capacity, resistance, diode, triode, light emitting diode, integrated circuit, recording switch, the time relay, potentiometer and loudspeaker.The utility model is reasonable in design, structure simply, easily makes; possesses supply voltage bound warning defencive function; when line voltage significantly changes; energy automatic detection warning; when exceeding certain hour; automatically can cut off computer power supply, effectively prevent the generation because of supply voltage problem damage computing machine phenomenon.
Description
Technical field
The utility model relates to a kind of computer power supply, is specifically related to a kind of computer power supply with supply voltage bound detection alarm function.
Background technology
All computing machines are equipped with oneself power supply, and at present, the computer power supply of normal conventional only possesses voltage stabilizing function more among a small circle; do not possess supply voltage bound warning defencive function; when line voltage significantly changes, be very easy to damage, even damage computing machine.
Summary of the invention
The purpose of this utility model is exactly the defect existed for prior art, provides a kind of computer power supply with supply voltage bound detection alarm function.
Its technical scheme is: the computer power supply with supply voltage bound detection alarm function, comprise computer power supply, power input terminal and detection alarm device circuit, power input terminal is connected with the input end of detection alarm device circuit, the output terminal of detection alarm device circuit is connected with the power input of computer power supply, described detection alarm device circuit comprises transformer, rectifier, electric capacity, resistance, diode, triode, light emitting diode, integrated circuit, recording switch, potentiometer and loudspeaker, two ends one tunnel of described power input terminal is connected with two input ends of transformer, time relay normally closed contact of separately leading up to is connected with the power input of computer power supply, the output terminal of described transformer is connected with the input end of rectifier, the positive output end of rectifier and the positive pole of the first electric capacity, one end of first resistance and the input end of the first integrated circuit connect, the output terminal of the first integrated circuit and the positive pole of the 3rd electric capacity, one quiet end of the first potentiometer, one quiet end of the second potentiometer, 8 pin of the second integrated circuit, the negative pole of diode, one end of the time relay, 4 pin of the 3rd integrated circuit and the positive pole of the 3rd light emitting diode are connected, the moved end of the first potentiometer is connected with 3 pin of the second integrated circuit, the moved end of the second potentiometer is connected with 6 pin of the second integrated circuit, the other end of the first resistance and the positive pole of the second electric capacity, 2 pin of the second integrated circuit and 5 pin of the second integrated circuit are connected, 7 pin of the second integrated circuit are connected by the positive pole of the second resistance with the first light emitting diode, the negative pole of the first light emitting diode and the base stage of the first triode, the base stage of the second triode and the negative pole of the second light emitting diode are connected, the collector of the first triode is connected with the positive pole of the other end of the time relay and diode, the positive pole of the second light emitting diode is connected with 1 pin of the second integrated circuit by the 3rd resistance, the collector of the second triode is connected with 6 pin of the 3rd integrated circuit, 7 pin of the 3rd integrated circuit are connected with the negative pole of the 3rd light emitting diode, 8 pin of the 3rd integrated circuit are connected with one end of recording switch, the negative output terminal of described rectifier and the negative pole of the first electric capacity, the negative pole of the second electric capacity, the negative pole of the 3rd electric capacity, the ground terminal of the first integrated circuit, another quiet end of first potentiometer, another quiet end of second potentiometer, the emitter of 4 pin first triodes of the second integrated circuit, the emitter of the second triode, the other end of recording switch and 5 pin of the 3rd integrated circuit are connected, 2 pin of described 3rd integrated circuit are connected with one end of loudspeaker, the other end of loudspeaker is connected with 3 pin of the 3rd integrated circuit, the model of described first integrated circuit is 7809, the model of described second integrated circuit is LM358, the model of described 3rd integrated circuit is BA9902.
Wherein, described computer power supply is conventional common computer power supply.The nominal input voltage of described transformer is alternating current 220V, and its output voltage is for exchanging 12V.Described first light emitting diode is red light emitting diodes, and described second light emitting diode is green LED, and described 3rd light emitting diode is yellow light-emitting diode.The impedance of described loudspeaker is 16-32 Ω.
The utility model compared with prior art; have the following advantages: reasonable in design, structure simply, easily makes; possesses supply voltage bound warning defencive function; when line voltage significantly changes; energy automatic detection warning; when exceeding certain hour, automatically can cut off computer power supply, effectively prevent the generation because of supply voltage problem damage computing machine phenomenon.
Accompanying drawing explanation
Fig. 1 is the circuit theory diagrams of a kind of embodiment of the utility model.
Embodiment
With reference to Fig. 1, a kind of computer power supply with supply voltage bound detection alarm function, comprise computer power supply 1, power input terminal 2 and detection alarm device circuit 3, power input terminal 2 is connected with the input end of detection alarm device circuit 3, the output terminal of detection alarm device circuit 3 is connected with the power input of computer power supply 1, described detection alarm device circuit 3 comprises transformer B, rectifier DZ, electric capacity C1C3, resistance R1R3, diode D, triode T1T2, light emitting diode L1L3, integrated circuit (IC) 1IC3, recording switch K, potentiometer W1W2 and loudspeaker M, two ends one tunnel of described power input terminal 2 is connected with two input ends of transformer B, time relay normally closed contact J-1 of separately leading up to is connected with the power input of computer power supply 1, the output terminal of described transformer B is connected with the input end of rectifier DZ, the positive output end of rectifier DZ and the positive pole of the first electric capacity C1, one end of first resistance R1 and the input end of the first integrated circuit (IC) 1 connect, the output terminal of the first integrated circuit (IC) 1 and the positive pole of the 3rd electric capacity C3, the one quiet end of the first potentiometer W1, the one quiet end of the second potentiometer W2, 8 pin of the second integrated circuit (IC) 2, the negative pole of diode D, one end of time relay J, 4 pin of the 3rd integrated circuit (IC) 3 and the positive pole of the 3rd light emitting diode L3 are connected, the moved end of the first potentiometer W1 is connected with 3 pin of the second integrated circuit (IC) 2, the moved end of the second potentiometer W2 is connected with 6 pin of the second integrated circuit (IC) 2, the other end of the first resistance R1 and the positive pole of the second electric capacity C2, 2 pin of the second integrated circuit (IC) 2 and 5 pin of the second integrated circuit (IC) 2 are connected, 7 pin of the second integrated circuit (IC) 2 are connected with the positive pole of the first light emitting diode L1 by the second resistance R2, the negative pole of the first light emitting diode L1 and the base stage of the first triode T1, the base stage of the second triode T2 and the negative pole of the second light emitting diode L2 are connected, the collector of the first triode T1 is connected with the positive pole of the other end of time relay J and diode D, the positive pole of the second light emitting diode L2 is connected with 1 pin of the second integrated circuit (IC) 2 by the 3rd resistance R3, the collector of the second triode T2 is connected with 6 pin of the 3rd integrated circuit (IC) 3, 7 pin of the 3rd integrated circuit (IC) 3 are connected with the negative pole of the 3rd light emitting diode L3, 8 pin of the 3rd integrated circuit (IC) 3 are connected with one end of recording switch K, the negative output terminal of described rectifier DZ and the negative pole of the first electric capacity C1, the negative pole of the second electric capacity C2, the negative pole of the 3rd electric capacity C3, the ground terminal of the first integrated circuit (IC) 1, another quiet end of first potentiometer W1, another quiet end of second potentiometer W2, the emitter of 4 pin first triode T1 of the second integrated circuit (IC) 2, the emitter of the second triode T2, the other end of recording switch K and 5 pin of the 3rd integrated circuit (IC) 3 are connected, 2 pin of described 3rd integrated circuit (IC) 3 are connected with one end of loudspeaker M, the other end of loudspeaker M is connected with 3 pin of the 3rd integrated circuit (IC) 3, the model of described first integrated circuit (IC) 1 is 7809, the model of described second integrated circuit (IC) 2 is LM358, the model of described 3rd integrated circuit (IC) 3 is BA9902.Wherein, described computer power supply 1 is conventional common computer power supply.The nominal input voltage of described transformer B is alternating current 220V, and its output voltage is for exchanging 12V.Described first light emitting diode L1 is red light emitting diodes, and described second light emitting diode L2 is green LED, and described 3rd light emitting diode L3 is yellow light-emitting diode.The impedance of described loudspeaker M is 16-32 Ω.The resistance of described first potentiometer W1 and the second potentiometer W2 is 10K.The resistance of described first resistance R1 is 100K.The capacity of described first electric capacity C1 and the second electric capacity C2 is 470u, and the capacity of the 3rd electric capacity C3 is 100u, and it is withstand voltage is all more than or equal to 25V.Described time relay J be establish beginning timing by cable, the time relay that timing time arrives back contact action.The model of described diode is 1N4001, and it act as afterflow, for the protection of the first triode T1.
Principle of work: after civil power turns on power input terminal 2, the DC voltage that the output end voltage of transformer B obtains after rectifier DZ rectification, the first electric capacity C1 filtering, this DC voltage one tunnel first integrated circuit (IC) 1 and the 3rd electric capacity C3 voltage stabilizing obtain 9V sampled voltage, separately lead up to after the first resistance R1 current limliting, the second electric capacity C2 filtering and provide detection voltage to 2,6 pin of the second integrated circuit (IC) 2.When the line voltage connecting power input terminal 2 is too high, when in accompanying drawing 1, A point voltage is greater than the upper voltage limit of IC2A setting in the second integrated circuit, its 7 pin exports high level, L1 lights, second triode T2 conducting, connect the sound production touch end of the 3rd integrated circuit (IC) 3, the 3rd integrated circuit (IC) 3 plays out voice warning prompting by loudspeaker M; Meanwhile, the first triode T1 also conducting, time relay J obtains electric work and starts timing; after timing time arrives, as line voltage is still too high, then time relay J action; its normally closed contact J-1 disconnects, and cuts off the input power of computer power supply 1, reaches the effect of alarm and protection computing machine.When the line voltage connecting power input terminal 2 is too low, when in Fig. 1, A point voltage is less than the lower voltage limit of IC2B setting in the second integrated circuit, its 1 pin exports high level, L2 lights, second triode T2 conducting, connect the sound production touch end of the 3rd integrated circuit (IC) 3, the 3rd integrated circuit (IC) 3 plays out voice warning prompting by loudspeaker M; Meanwhile, the first triode T1 also conducting, time relay J obtains electric work and starts timing; after timing time arrives, as line voltage is still too low, then time relay J action; its normally closed contact J-1 disconnects, and cuts off the input power of computer power supply 1, reaches the effect of alarm and protection computing machine.Supply voltage recovers normally, and the first triode T1 and second triode T2 all not conductings, time relay J and the 3rd integrated circuit (IC) 3 are all failure to actuate, and computer power supply normally works.First potentiometer W1 is for setting the upper voltage limit of IC2A in the second integrated circuit, and the second potentiometer W2 is for setting the lower voltage limit of IC2B in the second integrated circuit.
The utility model is reasonable in design, structure simply, easily makes; possesses supply voltage bound warning defencive function; when line voltage significantly changes; energy automatic detection warning; when exceeding certain hour; automatically can cut off computer power supply, effectively prevent the generation because of supply voltage problem damage computing machine phenomenon.
Claims (5)
1. there is the computer power supply of supply voltage bound detection alarm function, comprise computer power supply, power input terminal and detection alarm device circuit, power input terminal is connected with the input end of detection alarm device circuit, the output terminal of detection alarm device circuit is connected with the power input of computer power supply, it is characterized in that: described detection alarm device circuit comprises transformer, rectifier, electric capacity, resistance, diode, triode, light emitting diode, integrated circuit, recording switch, the time relay, potentiometer and loudspeaker, two ends one tunnel of described power input terminal is connected with two input ends of transformer, time relay normally closed contact of separately leading up to is connected with the power input of computer power supply, the output terminal of described transformer is connected with the input end of rectifier, the positive output end of rectifier and the positive pole of the first electric capacity, one end of first resistance and the input end of the first integrated circuit connect, the output terminal of the first integrated circuit and the positive pole of the 3rd electric capacity, one quiet end of the first potentiometer, one quiet end of the second potentiometer, 8 pin of the second integrated circuit, the negative pole of diode, one end of the time relay, 4 pin of the 3rd integrated circuit and the positive pole of the 3rd light emitting diode are connected, the moved end of the first potentiometer is connected with 3 pin of the second integrated circuit, the moved end of the second potentiometer is connected with 6 pin of the second integrated circuit, the other end of the first resistance and the positive pole of the second electric capacity, 2 pin of the second integrated circuit and 5 pin of the second integrated circuit are connected, 7 pin of the second integrated circuit are connected by the positive pole of the second resistance with the first light emitting diode, the negative pole of the first light emitting diode and the base stage of the first triode, the base stage of the second triode and the negative pole of the second light emitting diode are connected, the collector of the first triode is connected with the positive pole of the other end of the time relay and diode, the positive pole of the second light emitting diode is connected with 1 pin of the second integrated circuit by the 3rd resistance, the collector of the second triode is connected with 6 pin of the 3rd integrated circuit, 7 pin of the 3rd integrated circuit are connected with the negative pole of the 3rd light emitting diode, 8 pin of the 3rd integrated circuit are connected with one end of recording switch, the negative output terminal of described rectifier and the negative pole of the first electric capacity, the negative pole of the second electric capacity, the negative pole of the 3rd electric capacity, the ground terminal of the first integrated circuit, another quiet end of first potentiometer, another quiet end of second potentiometer, the emitter of 4 pin first triodes of the second integrated circuit, the emitter of the second triode, the other end of recording switch and 5 pin of the 3rd integrated circuit are connected, 2 pin of described 3rd integrated circuit are connected with one end of loudspeaker, the other end of loudspeaker is connected with 3 pin of the 3rd integrated circuit, the model of described first integrated circuit is 7809, the model of described second integrated circuit is LM358, the model of described 3rd integrated circuit is BA9902.
2. the computer power supply with supply voltage bound detection alarm function according to claim 1, is characterized in that: described computer power supply is conventional common computer power supply.
3. the computer power supply with supply voltage bound detection alarm function according to claim 1, is characterized in that: the nominal input voltage of described transformer is alternating current 220V, and its output voltage is for exchanging 12V.
4. the computer power supply with supply voltage bound detection alarm function according to claim 1, it is characterized in that: described first light emitting diode is red light emitting diodes, described second light emitting diode is green LED, and described 3rd light emitting diode is yellow light-emitting diode.
5. the computer power supply with supply voltage bound detection alarm function according to claim 1, is characterized in that: the impedance of described loudspeaker is 16-32 Ω.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420559166.2U CN204066008U (en) | 2014-09-27 | 2014-09-27 | There is the computer power supply of supply voltage bound detection alarm function |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201420559166.2U CN204066008U (en) | 2014-09-27 | 2014-09-27 | There is the computer power supply of supply voltage bound detection alarm function |
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| CN204066008U true CN204066008U (en) | 2014-12-31 |
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Cited By (3)
| 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 |
| CN107765831A (en) * | 2016-08-18 | 2018-03-06 | 中国长城科技集团股份有限公司 | A kind of computer, computer power supply and its warning circuit |
| CN112748690A (en) * | 2021-01-07 | 2021-05-04 | 朱丽萍 | Magnetic latching relay drive circuit for medical equipment |
-
2014
- 2014-09-27 CN CN201420559166.2U patent/CN204066008U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107765831A (en) * | 2016-08-18 | 2018-03-06 | 中国长城科技集团股份有限公司 | A kind of computer, computer power supply and its warning circuit |
| CN107037869A (en) * | 2017-04-21 | 2017-08-11 | 商洛学院 | A kind of computer power supply monitor |
| CN112748690A (en) * | 2021-01-07 | 2021-05-04 | 朱丽萍 | Magnetic latching relay drive circuit for medical equipment |
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