CN205719304U - A kind of battery temp Acquisition Circuit - Google Patents
A kind of battery temp Acquisition Circuit Download PDFInfo
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- CN205719304U CN205719304U CN201620632815.6U CN201620632815U CN205719304U CN 205719304 U CN205719304 U CN 205719304U CN 201620632815 U CN201620632815 U CN 201620632815U CN 205719304 U CN205719304 U CN 205719304U
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Abstract
The utility model discloses a kind of battery temp Acquisition Circuit, belong to battery temp monitoring technical field, including NTC temperature sensor, key control unit DSP, the first amplifying circuit and the second amplifying circuit, achieving employing NTC is that battery temp signal is acquired building DSP temperature collection circuit by detector unit, capacity of resisting disturbance is strong, reliable and stable, superior performance.
Description
Technical field
This utility model belongs to battery temp monitoring technical field.
Background technology
Detecting the temperature of accumulator, data acquisition is requisite means.Program control data collection system
Being more advanced acquisition mode, using NTC herein is that battery temp signal is acquired building by detector unit
DSP temperature acquisition system.General people detect temperature usually by various temperature Instruments, instrument, but adopt in this way
The data of collection contain measurement error, equipment error and various interference are caused in transmitting procedure error etc..These do not have
The data processed, for real result, certainly will bring inaccuracy.These problems above-mentioned will lean on data acquisition and procession
Solve.At present the temperature detection of accumulator be there is many ways in which, it is typical that SCM Based battery temp detects,
This mode is relatively rough.
Summary of the invention
The purpose of this utility model is to provide a kind of battery temp Acquisition Circuit, it is achieved that employing NTC is temperature detection
Battery temp signal is acquired building DSP temperature collection circuit by element, and capacity of resisting disturbance is strong, reliable and stable, performance
Superior.
For achieving the above object, this utility model is by the following technical solutions:
A kind of battery temp Acquisition Circuit, including NTC temperature sensor, key control unit DSP, the first amplifying circuit
With the second amplifying circuit, NTC temperature sensor connects the first amplifying circuit, and the first amplifying circuit connects the second amplifying circuit, the
Two amplifying circuits connect key control unit DSP；
First amplifying circuit includes resistance R1, resistance R2, electric capacity C54, amplifier U1, resistance R3, electric capacity C1, Schottky two
Pole pipe D1, resistance R4, electric capacity C2, resistance R5, resistance R6, resistance R7, electric capacity C3, resistance R8 and electric capacity C4,3 feet of amplifier U1
Connecting NTC temperature sensor, 3 feet of amplifier U1 connect+15V power supply by resistance R2, and 3 feet of amplifier U1 are also by parallel connection
The resistance R1 connected and electric capacity C54 connects ground wire, and 4 feet of amplifier U1 connect-15V power supply, the 8 foot connection+15V of amplifier U1
Power supply, 2 feet of amplifier U1 connect 1 foot of amplifier U1, and 1 foot of amplifier U1 connects 1 foot of resistance R3,2 feet of resistance R3
Connecting ground wire by electric capacity C1,2 feet of resistance R3 connect 1 foot of Schottky diode D1, and 2 feet of Schottky diode D1 connect
Ground wire, 2 feet of resistance R3 are also connected with 1 foot of resistance R6, and resistance R4 and electric capacity C2 that 1 foot of resistance R6 connects in parallel connect
Ground wire, 2 feet of resistance R6 connect ground wire by resistance R5, and 2 feet of resistance R6 are also connected with 5 feet of amplifier U1, the 5 of amplifier U1
Foot connects ground wire also by electric capacity C3, and 6 feet of amplifier U1 connect ground wire by resistance R7, between 6 feet and 7 feet of amplifier U1
Connect and have the resistance R8 and electric capacity C4 being connected in parallel；
Second amplifying circuit includes resistance R9, electric capacity C5, resistance R10, Schottky diode D2, electric capacity C6, amplifier
IC1, resistance R11, electric capacity C7 and electric capacity C8,7 feet of described amplifier U1 connect 3 feet of amplifier IC1, resistance by resistance R9
1 foot of R9 connects ground wire by electric capacity C5, and 2 feet of resistance R9 connect ground wire by resistance R10, and 2 feet of resistance R9 are also connected with Xiao
3 feet of special based diode D2,1 foot of Schottky diode D2 connects 3.3V power supply, and 2 feet of Schottky diode D2 connect ground
Line, 3 feet of amplifier IC1 connect ground wire also by electric capacity C6, and 1 foot and 2 feet of amplifier IC1 link together, amplifier IC1
1 foot connect 1 foot of R11,1 foot of resistance R11 connects ground wire also by electric capacity C7, and 2 feet of resistance R11 connect cores and control single
2 feet of unit DSP, resistance R11 connect ground wire also by electric capacity C8.
The model of described Schottky diode D1 is BZT25C12, and the model of described Schottky diode D2 is BAS40-
04。
The model of described amplifier U1 is TL082.
A kind of battery temp Acquisition Circuit described in the utility model, uses two amplifier circuit units to process NTC
The temperature signal of temperature sensor, utilizes DSP to be AD converted process, it is achieved that using NTC temperature sensor is temperature inspection
Surveying element to be acquired building DSP temperature collection circuit to battery temp signal, capacity of resisting disturbance is strong, reliable and stable, property
Can be superior.
Accompanying drawing explanation
Fig. 1 is hardware elementary diagram of the present utility model.
Detailed description of the invention
A kind of battery temp Acquisition Circuit as shown in Figure 1, including NTC temperature sensor (described NTC temperature sensor
Not shown in figure), key control unit DSP (not shown in described key control unit DSP figure), the first amplifying circuit and second
Amplifying circuit, NTC temperature sensor connects the first amplifying circuit, and the first amplifying circuit connects the second amplifying circuit, and second amplifies
Circuit connects key control unit DSP；
First amplifying circuit includes resistance R1, resistance R2, electric capacity C54, amplifier U1, resistance R3, electric capacity C1, Schottky two
Pole pipe D1, resistance R4, electric capacity C2, resistance R5, resistance R6, resistance R7, electric capacity C3, resistance R8 and electric capacity C4,3 feet of amplifier U1
Connecting NTC temperature sensor, 3 feet of amplifier U1 connect+15V power supply by resistance R2, and 3 feet of amplifier U1 are also by parallel connection
The resistance R1 connected and electric capacity C54 connects ground wire, and 4 feet of amplifier U1 connect-15V power supply, the 8 foot connection+15V of amplifier U1
Power supply, 2 feet of amplifier U1 connect 1 foot of amplifier U1, and 1 foot of amplifier U1 connects 1 foot of resistance R3,2 feet of resistance R3
Connecting ground wire by electric capacity C1,2 feet of resistance R3 connect 1 foot of Schottky diode D1, and 2 feet of Schottky diode D1 connect
Ground wire, 2 feet of resistance R3 are also connected with 1 foot of resistance R6, and resistance R4 and electric capacity C2 that 1 foot of resistance R6 connects in parallel connect
Ground wire, 2 feet of resistance R6 connect ground wire by resistance R5, and 2 feet of resistance R6 are also connected with 5 feet of amplifier U1, the 5 of amplifier U1
Foot connects ground wire also by electric capacity C3, and 6 feet of amplifier U1 connect ground wire by resistance R7, between 6 feet and 7 feet of amplifier U1
Connect and have the resistance R8 and electric capacity C4 being connected in parallel；
Second amplifying circuit includes resistance R9, electric capacity C5, resistance R10, Schottky diode D2, electric capacity C6, amplifier
IC1, resistance R11, electric capacity C7 and electric capacity C8,7 feet of described amplifier U1 connect 3 feet of amplifier IC1, resistance by resistance R9
1 foot of R9 connects ground wire by electric capacity C5, and 2 feet of resistance R9 connect ground wire by resistance R10, and 2 feet of resistance R9 are also connected with Xiao
3 feet of special based diode D2,1 foot of Schottky diode D2 connects 3.3V power supply, and 2 feet of Schottky diode D2 connect ground
Line, 3 feet of amplifier IC1 connect ground wire also by electric capacity C6, and 1 foot and 2 feet of amplifier IC1 link together, amplifier IC1
1 foot connect 1 foot of R11,1 foot of resistance R11 connects ground wire also by electric capacity C7, and 2 feet of resistance R11 connect cores and control single
2 feet of unit DSP, resistance R11 connect ground wire also by electric capacity C8.
The model of described Schottky diode D1 is BZT25C12, and the model of described Schottky diode D2 is BAS40-
04。
The model of described amplifier U1 is TL082.
During work, battery temp signal after NTC temperature sensor gathers, by the temperature signal that gathers through resistance R1 and
The signal follow circuit that the Part I U1A of resistance R2 entrance amplifier U1 is formed carries out signal and follows, then temperature signal warp
Cross resistance R3, electric capacity C1 filtering, through Schottky diode D1 clamper again via resistance R4, electric capacity C2, resistance R5, resistance R6, electricity
After the difference channel of the Part II U1B composition holding C3, resistance R8, electric capacity C4 and amplifier U1 processes, then through resistance R9, resistance
After R10, electric capacity C5 and electric capacity C6 divider filter process, then by Schottky diode D2 clamper, at first of amplified device IC1
The signal follow circuit dividing IC1A to be formed carries out signal and follows, and finally enters after resistance R11, electric capacity C7 and electric capacity C8 filter
The ADC modular converter of DSP, is realized collection and the process of temperature signal, this battery temperature collection system, resists by dsp program
Interference performance is strong, reliable and stable.
A kind of battery temp Acquisition Circuit described in the utility model, uses two amplifier circuit units to process NTC
The temperature signal of temperature sensor, utilizes DSP to be AD converted process, it is achieved that using NTC temperature sensor is temperature inspection
Surveying element to be acquired building DSP temperature collection circuit to battery temp signal, capacity of resisting disturbance is strong, reliable and stable, property
Can be superior.
Claims (3)
1. a battery temp Acquisition Circuit, it is characterised in that: include NTC temperature sensor, key control unit DSP,
One amplifying circuit and the second amplifying circuit, NTC temperature sensor connects the first amplifying circuit, and the first amplifying circuit connects second and puts
Big circuit, the second amplifying circuit connects key control unit DSP；
First amplifying circuit includes resistance R1, resistance R2, electric capacity C54, amplifier U1, resistance R3, electric capacity C1, Schottky diode
D1, resistance R4, electric capacity C2, resistance R5, resistance R6, resistance R7, electric capacity C3, resistance R8 and electric capacity C4,3 feet of amplifier U1 connect
NTC temperature sensor, 3 feet of amplifier U1 connect+15V power supply by resistance R2, and 3 feet of amplifier U1 are also by being connected in parallel
Resistance R1 and electric capacity C54 connect ground wire, amplifier U1 4 feet connect-15V power supplys, amplifier U1 8 feet connect+15V electricity
Source, 2 feet of amplifier U1 connect 1 foot of amplifier U1, and 1 foot of amplifier U1 connects 1 foot of resistance R3, and 2 feet of resistance R3 lead to
Crossing electric capacity C1 and connect ground wire, 2 feet of resistance R3 connect 1 foot of Schottky diode D1, and 2 feet of Schottky diode D1 connect ground
Line, 2 feet of resistance R3 are also connected with 1 foot of resistance R6, and resistance R4 and electric capacity C2 that 1 foot of resistance R6 connects in parallel connect ground
Line, 2 feet of resistance R6 connect ground wire by resistance R5, and 2 feet of resistance R6 are also connected with 5 feet of amplifier U1,5 feet of amplifier U1
Connecting ground wire also by electric capacity C3,6 feet of amplifier U1 connect ground wire by resistance R7, connect between 6 feet and 7 feet of amplifier U1
It is connected to resistance R8 and the electric capacity C4 being connected in parallel；
Second amplifying circuit includes resistance R9, electric capacity C5, resistance R10, Schottky diode D2, electric capacity C6, amplifier IC1, electricity
Resistance R11, electric capacity C7 and electric capacity C8,7 feet of described amplifier U1 connect 3 feet of amplifier IC1, the 1 of resistance R9 by resistance R9
Foot connects ground wire by electric capacity C5, and 2 feet of resistance R9 connect ground wire by resistance R10, and 2 feet of resistance R9 are also connected with Schottky two
3 feet of pole pipe D2,1 foot of Schottky diode D2 connects 3.3V power supply, and 2 feet of Schottky diode D2 connect ground wire, amplify
3 feet of device IC1 connect ground wire also by electric capacity C6, and 1 foot and 2 feet of amplifier IC1 link together, and 1 foot of amplifier IC1 is even
Connecing 1 foot of R11,1 foot of resistance R11 connects ground wire also by electric capacity C7, and 2 feet of resistance R11 connect key control unit DSP,
2 feet of resistance R11 connect ground wire also by electric capacity C8.
2. a kind of battery temp Acquisition Circuit as claimed in claim 1, it is characterised in that: described Schottky diode D1's
Model is BZT25C12, and the model of described Schottky diode D2 is BAS40-04.
3. a kind of battery temp Acquisition Circuit as claimed in claim 1, it is characterised in that: the model of described amplifier U1 is
TL082。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620632815.6U CN205719304U (en) | 2016-06-23 | 2016-06-23 | A kind of battery temp Acquisition Circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620632815.6U CN205719304U (en) | 2016-06-23 | 2016-06-23 | A kind of battery temp Acquisition Circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205719304U true CN205719304U (en) | 2016-11-23 |
Family
ID=57316233
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620632815.6U Active CN205719304U (en) | 2016-06-23 | 2016-06-23 | A kind of battery temp Acquisition Circuit |
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| CN (1) | CN205719304U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107247421A (en) * | 2017-05-04 | 2017-10-13 | 中国北方发动机研究所(天津) | A kind of interface circuit of reliable collecting temperature sensor signal |
-
2016
- 2016-06-23 CN CN201620632815.6U patent/CN205719304U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107247421A (en) * | 2017-05-04 | 2017-10-13 | 中国北方发动机研究所(天津) | A kind of interface circuit of reliable collecting temperature sensor signal |
| CN107247421B (en) * | 2017-05-04 | 2019-06-25 | 中国北方发动机研究所(天津) | A kind of interface circuit of reliable temperature collection sensor signal |
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