CN205506258U - Temperature acquisition circuit - Google Patents
Temperature acquisition circuit Download PDFInfo
- Publication number
- CN205506258U CN205506258U CN201620079303.1U CN201620079303U CN205506258U CN 205506258 U CN205506258 U CN 205506258U CN 201620079303 U CN201620079303 U CN 201620079303U CN 205506258 U CN205506258 U CN 205506258U
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- circuit
- resistance
- type triode
- outfan
- temperature sensor
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Abstract
The utility model relates to a temperature acquisition circuit belongs to temperature acquisition circuit's technical field, the problem of the technique is solved for: the utility model provides a temperature acquisition circuit who has the vibration function, the technical scheme who adopts does: a temperature acquisition circuit, includes: power supply circuit still includes oscillation circuit, control circuit and temperature sensor circuit, power supply circuit's output links to each other with oscillation circuit's input, oscillation circuit's output links to each other with control circuit's input, and control circuit's output links to each other with the input of temperature sensor circuit, the device is suitable for the electric power system.
Description
Technical field
This utility model one temperature collection circuit, belongs to the technical field of temperature collection circuit.
Background technology
In the circuit of white small household appliances, a lot of circuit boards all have the circuit of temperature sampling, critesistor is wherein used to realize the mode that the mode of temperature sampling is always numerous circuit designers and complete machine producer all gets used to, but in tradition uses critesistor sample circuit, owing to critesistor is different in the characteristic of different temperature range change in resistance, the impossible non-constant width in interval that the temperature of realization is relatively accurate in the case of same divider resistance, so in the product having specific demand width scope to show for some (such as part hot water pot, dehydrator etc.), if wanting to use the scheme of low cost critesistor to realize, just original circuit must be modified.
Utility model content
This utility model overcomes the deficiency that prior art exists, technical problem to be solved to be: provide a kind of temperature collection circuit with oscillation functions.
In order to solve above-mentioned technical problem, the technical solution adopted in the utility model is: a kind of temperature collection circuit, including: power circuit, also include oscillating circuit, control circuit and temperature sensor circuit, the outfan of described power circuit is connected with the input of oscillating circuit, the outfan of described oscillating circuit is connected with the input of control circuit, and the outfan of control circuit is connected with the input of temperature sensor circuit.
Described oscillating circuit includes resistance R1, electric capacity C1 and phase inverter U1, and control circuit includes electric capacity C2, time base circuit IC1, IC 2, PNP type triode VT1 and NPN type triode VT2, and temperature sensor circuit includes diode D1 and temperature sensor K1；
nullOne end of described time base circuit IC1 the first pin shunt-wound capacitance C2、The power end of phase inverter U1、After the outfan of phase inverter U1, the output plus terminal with power circuit is connected，Described resistance R1 is connected with one end of electric capacity C1 after being attempted by between input and the outfan of phase inverter U1，The other end of electric capacity C1 also connects the earth terminal of phase inverter U1、The other end of electric capacity C2、After time base circuit IC1 the second pin, the output negative terminal with power circuit is connected，With the base stage of PNP type triode VT1 behind one end of time base circuit IC1 the 3rd pin shunt-wound capacitance C3、The emitter stage of PNP type triode VT1、One end of resistance R4、The negative pole of diode D1、One end of temperature sensor K1 is connected，Electric capacity C4 is attempted by between the collector and emitter of PNP type triode VT1，The emitter stage of PNP type triode VT1 is also connected with one end of resistance R2 after connecing the first pin of IC 2，It is connected with one end of resistance R3 after second pin of IC 2 one end of connecting resistance R4，3rd pin of IC 2 is connected with one end of resistance R5，The other end of resistance R5 is connected with the base stage of NPN type triode VT2，The colelctor electrode of NPN type triode VT2 is also connected with the other end of temperature sensor K1 after connecing the positive pole of diode D1，The other end of electric capacity C3 the other end of connecting resistance R2、The other end of resistance R3、After the emitter stage of NPN type triode VT2, the output negative terminal with power circuit is connected.
Described power circuit includes transformator F1 and bridge rectifier T1, the input of described transformator F1 is connected with mains supply, the outfan of described transformator F1 is connected with the input of bridge rectifier T1, the outfan that outfan is power circuit of described bridge rectifier T1.
This utility model compared with prior art has the advantages that
This utility model one temperature collection circuit, integrates power circuit, oscillating circuit, control circuit and temperature sensor circuit, passes through temperature sensor circuit, big consequence will not be produced because of operational error, circuit structure is simple, low cost, and feasibility is high.
Accompanying drawing explanation
The utility model is described in more detail below in conjunction with the accompanying drawings；
Fig. 1 is electrical block diagram of the present utility model；
In figure: 1 is power circuit, 2 is oscillating circuit, and 3 is control circuit, and 4 is temperature sensor circuit.
Detailed description of the invention
As shown in Figure 1, a kind of temperature collection circuit, including: power circuit 1, also include oscillating circuit 2, control circuit 3 and temperature sensor circuit 4, the outfan of described power circuit 1 is connected with the input of oscillating circuit 2, the outfan of described oscillating circuit 2 is connected with the input of control circuit 3, and the outfan of control circuit 3 is connected with the input of temperature sensor circuit 4.
Described oscillating circuit 2 includes resistance R1, electric capacity C1 and phase inverter U1, control circuit 3 includes electric capacity C2, time base circuit IC1, IC 2, PNP type triode VT1 and NPN type triode VT2, and temperature sensor circuit 4 includes diode D1 and temperature sensor K1；
nullOne end of described time base circuit IC1 the first pin shunt-wound capacitance C2、The power end of phase inverter U1、After the outfan of phase inverter U1, the output plus terminal with power circuit 1 is connected，Described resistance R1 is connected with one end of electric capacity C1 after being attempted by between input and the outfan of phase inverter U1，The other end of electric capacity C1 also connects the earth terminal of phase inverter U1、The other end of electric capacity C2、After time base circuit IC1 the second pin, the output negative terminal with power circuit 1 is connected，With the base stage of PNP type triode VT1 behind one end of time base circuit IC1 the 3rd pin shunt-wound capacitance C3、The emitter stage of PNP type triode VT1、One end of resistance R4、The negative pole of diode D1、One end of temperature sensor K1 is connected，Electric capacity C4 is attempted by between the collector and emitter of PNP type triode VT1，The emitter stage of PNP type triode VT1 is also connected with one end of resistance R2 after connecing the first pin of IC 2，It is connected with one end of resistance R3 after second pin of IC 2 one end of connecting resistance R4，3rd pin of IC 2 is connected with one end of resistance R5，The other end of resistance R5 is connected with the base stage of NPN type triode VT2，The colelctor electrode of NPN type triode VT2 is also connected with the other end of temperature sensor K1 after connecing the positive pole of diode D1，The other end of electric capacity C3 the other end of connecting resistance R2、The other end of resistance R3、After the emitter stage of NPN type triode VT2, the output negative terminal with power circuit 1 is connected.
Described power circuit 1 includes transformator F1 and bridge rectifier T1, the input of described transformator F1 is connected with mains supply, the outfan of described transformator F1 is connected with the input of bridge rectifier T1, the outfan that outfan is power circuit 1 of described bridge rectifier T1.
Power circuit 1, oscillating circuit 2, control circuit 3 and temperature sensor circuit 4 are integrated by this utility model, pass through temperature sensor circuit, big consequence will not be produced because of operational error, circuit structure is simple, low cost, feasibility is high, improves efficiency and the performance of circuit, enhance the suitability of circuit, there is substantive distinguishing features and progress；Above in conjunction with accompanying drawing, embodiment of the present utility model is explained in detail, but this utility model is not limited to above-described embodiment, in the ken that those of ordinary skill in the art are possessed, it is also possible on the premise of without departing from this utility model objective, various changes can be made.
Claims (3)
1. a temperature collection circuit, including: power circuit (1), it is characterized in that: also include oscillating circuit (2), control circuit (3) and temperature sensor circuit (4), the outfan of described power circuit (1) is connected with the input of oscillating circuit (2), the outfan of described oscillating circuit (2) is connected with the input of control circuit (3), and the outfan of control circuit (3) is connected with the input of temperature sensor circuit (4).
A kind of temperature collection circuit the most according to claim 1, it is characterized in that: described oscillating circuit (2) includes resistance R1, electric capacity C1 and phase inverter U1, control circuit (3) includes that electric capacity C2, time base circuit IC1, IC 2, PNP type triode VT1 and NPN type triode VT2, temperature sensor circuit (4) include diode D1 and temperature sensor K1；
nullOne end of described time base circuit IC1 the first pin shunt-wound capacitance C2、The power end of phase inverter U1、After the outfan of phase inverter U1, the output plus terminal with power circuit (1) is connected，Described resistance R1 is connected with one end of electric capacity C1 after being attempted by between input and the outfan of phase inverter U1，The other end of electric capacity C1 also connects the earth terminal of phase inverter U1、The other end of electric capacity C2、After time base circuit IC1 the second pin, the output negative terminal with power circuit (1) is connected，With the base stage of PNP type triode VT1 behind one end of time base circuit IC1 the 3rd pin shunt-wound capacitance C3、The emitter stage of PNP type triode VT1、One end of resistance R4、The negative pole of diode D1、One end of temperature sensor K1 is connected，Electric capacity C4 is attempted by between the collector and emitter of PNP type triode VT1，The emitter stage of PNP type triode VT1 is also connected with one end of resistance R2 after connecing the first pin of IC 2，It is connected with one end of resistance R3 after second pin of IC 2 one end of connecting resistance R4，3rd pin of IC 2 is connected with one end of resistance R5，The other end of resistance R5 is connected with the base stage of NPN type triode VT2，The colelctor electrode of NPN type triode VT2 is also connected with the other end of temperature sensor K1 after connecing the positive pole of diode D1，The other end of electric capacity C3 the other end of connecting resistance R2、The other end of resistance R3、After the emitter stage of NPN type triode VT2, the output negative terminal with power circuit (1) is connected.
A kind of temperature collection circuit the most according to claim 1, it is characterized in that: described power circuit (1) includes transformator F1 and bridge rectifier T1, the input of described transformator F1 is connected with mains supply, the outfan of described transformator F1 is connected with the input of bridge rectifier T1, the outfan that outfan is power circuit (1) of described bridge rectifier T1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620079303.1U CN205506258U (en) | 2016-01-27 | 2016-01-27 | Temperature acquisition circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620079303.1U CN205506258U (en) | 2016-01-27 | 2016-01-27 | Temperature acquisition circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205506258U true CN205506258U (en) | 2016-08-24 |
Family
ID=56722512
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620079303.1U Withdrawn - After Issue CN205506258U (en) | 2016-01-27 | 2016-01-27 | Temperature acquisition circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205506258U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105571746A (en) * | 2016-01-27 | 2016-05-11 | 国网山西省电力公司运城供电公司 | Temperature acquisition circuit |
-
2016
- 2016-01-27 CN CN201620079303.1U patent/CN205506258U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105571746A (en) * | 2016-01-27 | 2016-05-11 | 国网山西省电力公司运城供电公司 | Temperature acquisition circuit |
| CN105571746B (en) * | 2016-01-27 | 2018-05-29 | 国网山西省电力公司运城供电公司 | Temperature collection circuit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160824 Effective date of abandoning: 20180529 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20160824 Effective date of abandoning: 20180529 |
|
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |