CN203232414U - Temperature monitoring circuit - Google Patents
Temperature monitoring circuit Download PDFInfo
- Publication number
- CN203232414U CN203232414U CN 201320203481 CN201320203481U CN203232414U CN 203232414 U CN203232414 U CN 203232414U CN 201320203481 CN201320203481 CN 201320203481 CN 201320203481 U CN201320203481 U CN 201320203481U CN 203232414 U CN203232414 U CN 203232414U
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- CN
- China
- Prior art keywords
- resistor
- diode
- control circuit
- alarm control
- transistor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Electronic Switches (AREA)
- Alarm Systems (AREA)
- Amplifiers (AREA)
Abstract
The utility model discloses a temperature monitoring circuit which comprises a direct-current power supply, an amplifier, an alarm control circuit, a wire connector, a temperature sensor, a potentiometer, a first transistor, a second transistor, a switch, a relay, a first diode, a second diode, a third diode, a first resistor, a second resistor, a third resistor, a fourth resistor, a fifth resistor, sixth resistors, a seventh resistor and an eight resistor. Owing to the temperature monitoring circuit of a computer, a mainboard of the computer can be prevented from being burned due to heating. The temperature monitoring circuit has the advantages of simple circuit structure, stable performance and convenience in installation and debugging.
Description
Technical field
The utility model relates to a kind of observation circuit, relates in particular to a kind of temperature observation circuit.
Background technology
Along with the raising of people's living standard, computing machine has been applied in all trades and professions, because start for a long time, computer to dissipate heat lost efficacy, and the mainboard of computing machine generates heat, thereby burns out the circuit board of collector, is unfavorable for the production efficiency of all trades and professions.
The utility model content
The purpose of this utility model provides a kind of temperature observation circuit 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 direct supply, amplifier, alarm control circuit, wire connector, temperature sensor, potentiometer, the first transistor, transistor seconds, switch, relay, first diode, second diode, the 3rd diode, first resistor, second resistor, the 3rd resistor, the 4th resistor, the 5th resistor, the 6th resistor, the 7th resistor and the 8th resistor, the cathode output end of described direct supply respectively with first end of described temperature sensor, first end of described second resistor, the electrode input end of described amplifier, described the 6th resistor, the negative pole of described second diode, first end of described relay and first end of described switch are connected, second end of described temperature sensor is connected with first end of described first resistor and first end of described the 3rd resistor respectively, second end of described the 3rd resistor is connected with the normal phase input end of described amplifier, second end of described second resistor is connected with the negative pole of described first diode and first end of described the 4th resistor respectively, second end of described the 4th resistor is connected and is connected with first end of described the 6th resistor behind the described potentiometer, the sliding end of described potentiometer is connected and is connected with described amplifier's inverting input behind described the 5th resistor, the signal output part of described amplifier is connected and is connected with the base stage of described the first transistor behind described the 6th resistor, the collector of described the first transistor is connected with the base stage of described transistor seconds and second end of described the 6th resistor respectively, the collector of described transistor seconds is connected with second end of described relay and the positive pole of described second diode respectively, second end of described switch is connected with first end of described the 8th resistor and first end of described wire connector respectively, second end of described the 8th resistor is connected with the negative pole of described the 3rd diode and the electrode input end of described alarm control circuit respectively, the plus earth of described the 3rd diode, the signal output part of described alarm control circuit is connected with the signal input part of described wire connector, the high-triggering end of described alarm control circuit is connected and is connected with the low triggering end of described alarm control circuit behind described the 7th resistor, second end of described wire connector respectively with the control end of described alarm control circuit, the negative input of described alarm control circuit, the emitter of described the first transistor, the emitter of described transistor seconds, the negative input of described amplifier, second end of described the 6th resistor, second end of the positive pole of described first diode and described first resistor is connected.
The beneficial effects of the utility model are:
The utility model provides a kind of computer temperature observation circuit, can prevent that computing machine from burning out the mainboard of computing machine owing to heating; The utlity model has that circuit structure is simple, stable performance and Installation and Debugging advantage easily.
Description of drawings
Fig. 1 is the circuit diagram of a kind of temperature observation circuit described in the utility model.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing:
As shown in Figure 1, the utility model comprises direct supply, amplifier IC1, alarm control circuit IC2, wire connector IC3, temperature sensor, potentiometer RP, the first transistor VT1, transistor seconds VT2, K switch-1, relay K, the first diode VD1, the second diode VD2, the 3rd diode VD3, the first resistor R1, the second resistor R2, the 3rd resistor R3, the 4th resistor R4, the 5th resistor R5, the 6th resistor R6, the 7th resistor R7 and the 8th resistor R8, the cathode output end of direct supply respectively with first end of temperature sensor, first end of the second resistor R2, the electrode input end of amplifier IC1, the 6th resistor R6, the negative pole of the second diode VD2, first end of relay K is connected with first end of K switch-1, second end of temperature sensor is connected with first end of the first resistor R1 and first end of the 3rd resistor R3 respectively, second end of the 3rd resistor R3 is connected with the normal phase input end of amplifier IC1, second end of the second resistor R2 is connected with the negative pole of the first diode VD1 and first end of the 4th resistor R4 respectively, be connected with first end of the 6th resistor R6 behind second end series connection potentiometer RP of the 4th resistor R4, the sliding end of potentiometer RP is connected and is connected with the inverting input of amplifier IC1 behind the 5th resistor R5, the signal output part of amplifier IC1 is connected and is connected with the base stage of the first transistor VT1 behind the 6th resistor R6, the collector of the first transistor VT1 is connected with the base stage of transistor seconds VT2 and second end of the 6th resistor R6 respectively, the collector of transistor seconds VT2 is connected with second end of relay K and the positive pole of the second diode VD2 respectively, second end of K switch-1 is connected with first end of the 8th resistor R8 and first end of wire connector IC3 respectively, second end of the 8th resistor R8 is connected with the negative pole of the 3rd diode VD3 and the electrode input end of alarm control circuit IC2 respectively, the plus earth of the 3rd diode VD3, the signal output part of alarm control circuit IC2 is connected with the signal input part of wire connector IC3, the high-triggering end of alarm control circuit IC2 is connected and is connected with the low triggering end of alarm control circuit IC2 behind the 7th resistor R7, second end of wire connector IC3 respectively with the control end of alarm control circuit IC2, the negative input of alarm control circuit IC2, the emitter of the first transistor VT1, the emitter of transistor seconds VT2, the negative input of amplifier IC1, second end of the 6th resistor R6, the positive pole of the first diode VD1 is connected with second end of the first resistor R1.
Claims (1)
1. temperature observation circuit, it is characterized in that: comprise direct supply, amplifier, alarm control circuit, wire connector, temperature sensor, potentiometer, the first transistor, transistor seconds, switch, relay, first diode, second diode, the 3rd diode, first resistor, second resistor, the 3rd resistor, the 4th resistor, the 5th resistor, the 6th resistor, the 7th resistor and the 8th resistor, the cathode output end of described direct supply respectively with first end of described temperature sensor, first end of described second resistor, the electrode input end of described amplifier, described the 6th resistor, the negative pole of described second diode, first end of described relay and first end of described switch are connected, second end of described temperature sensor is connected with first end of described first resistor and first end of described the 3rd resistor respectively, second end of described the 3rd resistor is connected with the normal phase input end of described amplifier, second end of described second resistor is connected with the negative pole of described first diode and first end of described the 4th resistor respectively, second end of described the 4th resistor is connected and is connected with first end of described the 6th resistor behind the described potentiometer, the sliding end of described potentiometer is connected and is connected with described amplifier's inverting input behind described the 5th resistor, the signal output part of described amplifier is connected and is connected with the base stage of described the first transistor behind described the 6th resistor, the collector of described the first transistor is connected with the base stage of described transistor seconds and second end of described the 6th resistor respectively, the collector of described transistor seconds is connected with second end of described relay and the positive pole of described second diode respectively, second end of described switch is connected with first end of described the 8th resistor and first end of described wire connector respectively, second end of described the 8th resistor is connected with the negative pole of described the 3rd diode and the electrode input end of described alarm control circuit respectively, the plus earth of described the 3rd diode, the signal output part of described alarm control circuit is connected with the signal input part of described wire connector, the high-triggering end of described alarm control circuit is connected and is connected with the low triggering end of described alarm control circuit behind described the 7th resistor, second end of described wire connector respectively with the control end of described alarm control circuit, the negative input of described alarm control circuit, the emitter of described the first transistor, the emitter of described transistor seconds, the negative input of described amplifier, second end of described the 6th resistor, second end of the positive pole of described first diode and described first resistor is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320203481 CN203232414U (en) | 2013-04-22 | 2013-04-22 | Temperature monitoring circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320203481 CN203232414U (en) | 2013-04-22 | 2013-04-22 | Temperature monitoring circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203232414U true CN203232414U (en) | 2013-10-09 |
Family
ID=49288525
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320203481 Expired - Fee Related CN203232414U (en) | 2013-04-22 | 2013-04-22 | Temperature monitoring circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203232414U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108646803A (en) * | 2018-05-14 | 2018-10-12 | 商洛学院 | A kind of chemical experiment reaction unit thermostatic controller |
-
2013
- 2013-04-22 CN CN 201320203481 patent/CN203232414U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108646803A (en) * | 2018-05-14 | 2018-10-12 | 商洛学院 | A kind of chemical experiment reaction unit thermostatic controller |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131009 Termination date: 20140422 |