CN206451976U - TEC controls circuit and TEC controllers - Google Patents
TEC controls circuit and TEC controllers Download PDFInfo
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- CN206451976U CN206451976U CN201720118569.7U CN201720118569U CN206451976U CN 206451976 U CN206451976 U CN 206451976U CN 201720118569 U CN201720118569 U CN 201720118569U CN 206451976 U CN206451976 U CN 206451976U
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Abstract
The utility model discloses a kind of TEC control circuits and TEC controllers, wherein, TEC control circuits include temperature collection circuit, the first amplifier, the second amplifier, PID compensation circuits and drive circuit；Temperature collection circuit, gathers the temperature information of EML lasers, and temperature information is converted into electric signal；First amplifier, converts electrical signals to linear signal；Second amplifier, receives the setting signal of linear signal and user's input, linear signal is compared with setting signal, and output control signals to drive circuit；PID compensation circuits, PID compensation is carried out to control signal；Drive circuit, receives control signal, output difference driving voltage to semiconductor cooler.Technical solutions of the utility model cause the temperature control of EML lasers more accurate, efficient.
Description
Technical field
The utility model is related to EML field of laser device technology, more particularly to a kind of TEC control circuits and application TEC controls
The TEC controllers of circuit processed.
Background technology
Need to use EML (Electlro-absorption Modulated during in high speed long distance optic transmission
Laser, Electroabsorption Modulated Laser) laser, EML lasers for temperature stability require it is higher, it is necessary to TEC
(Thermoelectric Cooler, semiconductor cooler) controller controls its temperature.Existing scheme is mainly controlled using TEC
Device adds the mode of amplifier, gathers the working condition of thermistor, is fed back by amplifier into horizontal-linearity control.This mode it is accurate
Degree is relatively low, and refrigeration is not good, influences the job stability of laser.
Utility model content
Main purpose of the present utility model is to provide a kind of TEC controls circuit, it is desirable to provide a kind of efficient, small power consumption
TEC controls circuit.
To achieve the above object, the utility model proposes TEC control circuit, including temperature collection circuit, first amplification
Device, the second amplifier, PID compensation circuits and drive circuit；
The temperature collection circuit, gathers the temperature information of EML lasers, and the temperature information is converted into telecommunications
Number；
First amplifier, linear signal is converted to by the electric signal；
Second amplifier, receives the setting signal of the linear signal and user's input, by the linear signal with
The setting signal is compared, and outputs control signals to the drive circuit；
The PID compensation circuits, PID compensation is carried out to the control signal；
The drive circuit, receives the control signal, output difference driving voltage to semiconductor cooler.
Preferably, the output end of the temperature collection circuit is connected with the input of first amplifier, and described first
The output end of amplifier is connected with the first input end of second amplifier, and the output end of second amplifier is driven with described
The input connection of dynamic circuit, the input of the output end of second amplifier also with the PID compensation circuits is connected, described
The output end of PID compensation circuits is connected with the second amplifier first input end.
Preferably, the PID compensation circuits include first resistor, second resistance, 3rd resistor, the 4th resistance, the first electricity
Appearance, the second electric capacity and the 3rd electric capacity；The first end of 4th resistance is connected with the output end of first amplifier, and described
Second end of four resistance is connected with the first input end of second amplifier；The first end of the first resistor and described first
The input connection of amplifier, the second end of the first resistor is connected with the output end of first amplifier；Described first
The first end of electric capacity is connected with the output end of first amplifier, the second end and the second resistance of first electric capacity
First end is connected；Second end of the second resistance is connected with the first end of the 3rd resistor, and the second of the second resistance
The first input end also with second amplifier is held to be connected；Second end of the 3rd resistor and the first of the 3rd electric capacity
End connection, the second end of the 3rd electric capacity is connected with the output end of second amplifier；The first end of second electric capacity
It is connected with the second end of the second resistance, the second end of second electric capacity is connected with the second end of the 3rd electric capacity.
Preferably, the temperature collection circuit includes the 5th resistance, the 6th resistance and the 7th resistance；5th resistance
First end is connected with power supply, and the second end of the 5th resistance is connected with the first end of the 6th resistance, the 6th resistance
The second end be connected with the first end of the 7th resistance, the second end of the 7th resistance ground connection；The of 5th resistance
Input of two ends also with first amplifier is connected, and the 7th resistance is thermistor.
Preferably, the 7th resistance is NTC thermistor.
Preferably, the TEC controls circuit also includes TEC limitation modules；The output end of TEC limitation module with it is described
The limitation end connection of drive circuit；The TEC limits module, the electric current and/or voltage of semiconductor cooler is detected, to the electricity
Stream and/or voltage carry out size limitation.
Preferably, the TEC controls circuit also includes controller, the controller input and second amplifier
Output end is connected, and the output end of the controller is connected with the input of the drive circuit；The controller, to described second
The control signal that amplifier is exported is controlled, handled.
Preferably, the TEC controls circuit also includes oscillator；The output end of the oscillator and the controller when
Clock end is connected；The oscillator, receiving phase is set, and sends oscillator signal to the controller.
Preferably, the TEC controls circuit also includes reference voltage module, the input of the reference voltage module
It is connected with the reference voltage end of the controller；The output end output reference voltage of the reference voltage module.
The utility model also proposes a kind of TEC controllers, the TEC controllers include temperature collection circuit, the first amplifier,
Second amplifier, PID compensation circuits and drive circuit；The temperature collection circuit, gathers the temperature information of EML lasers, and
The temperature information is converted into electric signal；First amplifier, linear signal is converted to by the electric signal；Described second
Amplifier, receives the setting signal of the linear signal and user's input, and the linear signal and the setting signal are carried out
Compare, and output control signals to the drive circuit；The PID compensation circuits, PID compensation is carried out to the control signal；
The drive circuit, receives the control signal, output difference driving voltage to semiconductor cooler.
Technical solutions of the utility model are by using temperature collection circuit, PID compensation circuits, the first amplifying circuit, second
Amplifying circuit and drive circuit, form a kind of TEC controls circuit.The temperature of EML lasers is gathered by temperature collection circuit
Information, linear voltage is converted to by it by the first amplifier, and the setting signal set by the second amplifier and user is carried out
Compare, the signal of output reduces error by PID compensation circuits, signal driving is finally carried out by drive circuit, realization is half-and-half led
The control of chiller, and then complete the temperature control to EML lasers.The utility model causes the temperature control of EML lasers
System is more accurate, efficient.
Brief description of the drawings
, below will be to embodiment in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art
Or the accompanying drawing used required in description of the prior art is briefly described, it should be apparent that, drawings in the following description are only
It is some embodiments of the present utility model, for those of ordinary skill in the art, is not paying the premise of creative work
Under, other accompanying drawings can also be obtained according to the structure shown in these accompanying drawings.
Fig. 1 is the functional block diagram that the utility model TEC controls the embodiment of circuit one；
Fig. 2 is the circuit diagram that the utility model TEC controls the embodiment of circuit one；
Fig. 3 is the functional block diagram that the utility model TEC controls another embodiment of circuit.
Drawing reference numeral explanation：
| Label | Title | Label | Title |
| 100 | Temperature collection circuit | R2 | Second resistance |
| 200 | First amplifier | R3 | 3rd resistor |
| 300 | Second amplifier | R4 | 4th resistance |
| 400 | PID compensation circuits | R5 | 5th resistance |
| 500 | Drive circuit | R6 | 6th resistance |
| 600 | TEC limits module | R7 | 7th resistance |
| 700 | Controller | C1 | First electric capacity |
| 800 | Oscillator | C2 | Second electric capacity |
| 900 | Reference voltage module | C3 | 3rd electric capacity |
| R1 | First resistor |
Realization, functional characteristics and the advantage of the utility model purpose will be described further referring to the drawings in conjunction with the embodiments.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is carried out
Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of the present utility model, rather than all
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not making creative work premise
Lower obtained every other embodiment, belongs to the scope of the utility model protection.
It is to be appreciated that institute is directional in the utility model embodiment indicates (such as up, down, left, right, before and after ...)
Relative position relation, motion conditions for being only used for explaining under a certain particular pose (as shown in drawings) between each part etc., such as
When really the particular pose changes, then directionality indicates also correspondingly therewith to change.
In addition, the description for being related to " first ", " second " etc. in the utility model is only used for describing purpose, without being understood that
To indicate or implying its relative importance or the implicit quantity for indicating indicated technical characteristic.Thus, define " first ",
At least one this feature can be expressed or be implicitly included to the feature of " second ".In addition, the technical side between each embodiment
Case can be combined with each other, but must can be implemented as basis with those of ordinary skill in the art, when the combination of technical scheme
It will be understood that the combination of this technical scheme is not present when appearance is conflicting or can not realize, also not in the utility model requirement
Protection domain within.
Circuit is controlled the utility model proposes a kind of TEC.
Reference picture 1, the TEC control circuit include temperature collection circuit 100, the first amplifier 200, the second amplifier 300,
PID compensation circuits 400 and drive circuit 500；The temperature collection circuit 100, gathers the temperature information of EML lasers, and will
The temperature information is converted to electric signal；First amplifier 200, linear signal is converted to by the electric signal；Described
Two amplifiers 300, receive the setting signal of the linear signal and user's input, by the linear signal and the setting signal
It is compared, and outputs control signals to the drive circuit 500；The PID compensation circuits 400, enter to the control signal
Row PID compensation 400；The drive circuit 500, receives the control signal, output difference driving voltage to semiconductor cooler.
It should be noted that the PID compensation circuits 400 are collectively forming a PID compensation with second amplifier 300
Device, the PID compensator includes an extremely low frequency limit, two different upper frequency zero points and two high frequency poles.PID is mended
Voltage can be set by the second input input of second amplifier by repaying device, obtained a jump function and simultaneously changed target temperature
Degree, user of service can adjust the structure of PID compensation circuits, make the setup time of TEC temperature most short.
Technical solutions of the utility model are by using temperature collection circuit 100, PID compensation circuits 400, the first amplifying circuit
200th, the second amplifying circuit 300 and drive circuit 500, form a kind of TEC controls circuit.Adopted by temperature collection circuit 100
Collect the temperature information of EML lasers, it be converted into linear voltage by the first amplifier 200, by the second amplifier 300 with
The setting signal that user is set is compared, and the signal of output reduces error by PID compensation circuits 400, finally by driving electricity
Road 500 carries out signal driving, realizes the control to semiconductor cooler, and then complete the temperature control to EML lasers.This reality
It is more accurate, efficient with the new temperature control for causing EML lasers.
Specifically, the output end of the temperature collection circuit 100 is connected with the input of first amplifier 200, institute
The output end for stating the first amplifier 200 is connected with the first input end of second amplifier 300, second amplifier 300
Output end be connected with the input of the drive circuit 500, the output end of second amplifier 300 is also mended with the PID
Repay the input connection of circuit 400, the output end of the PID compensation circuits 400 and the first input end of the second amplifier 300
Connection.
Reference picture 2, specifically, the PID compensation circuits 400 include first resistor R1, second resistance R2,3rd resistor
R3, the 4th resistance R4, the first electric capacity C1, the second electric capacity C2 and the 3rd electric capacity C3；The first end of the 4th resistance R4 with it is described
The output end connection of first amplifier 200, the second end of the 4th resistance R4 and the first input of second amplifier 300
End connection；The first end of the first resistor R1 is connected with the input of first amplifier 200, the first resistor R1's
Second end is connected with the output end of first amplifier 200；The first end of the first electric capacity C1 and first amplifier
200 output end connection, the second end of the first electric capacity C1 is connected with the first end of the second resistance R2；Second electricity
Resistance R2 the second end is connected with the first end of the 3rd resistor R3, and the second end of the second resistance R2 is also put with described second
The first input end connection of big device 300；The second end of the 3rd resistor R3 is connected with the first end of the 3rd electric capacity C3, institute
The second end for stating the 3rd electric capacity C3 is connected with the output end of second amplifier 300；The first end of the second electric capacity C2 with
The second end connection of the second resistance R2, the second end of the second electric capacity C2 connects with the second end of the 3rd electric capacity C3
Connect.
It should be noted that 3rd resistor R3 and the second amplifier 300 are formed with ratio circuit.First electric capacity C1 and second
Resistance R2 and the second amplifier 300 are collectively forming differential circuit.4th resistance R4, the 3rd electric capacity C3 and the second amplifier 300 are common
It is same to form integrating circuit.Passing ratio circuit (Proportional), integrating circuit (Integral) and differential circuit
(Differential) it together form PID compensator.
Specifically, the temperature collection circuit 100 includes the 5th resistance R5, the 6th resistance R6 and the 7th resistance R7；It is described
5th resistance R5 first end is connected with power supply, and the second end of the 5th resistance R5 connects with the first end of the 6th resistance R6
Connect, the second end of the 6th resistance R6 is connected with the first end of the 7th resistance R7, the second end of the 7th resistance R7
Ground connection；Input of the second end of the 5th resistance R5 also with first amplifier 200 is connected, and the 7th resistance R7 is
Thermistor.
It should be noted that the voltage of power supply is oriented to ground by the 5th resistance R5, the 6th resistance R6 and the 7th resistance R7,
Because wherein the 7th resistance R7 is thermistor, and it is arranged on EML lasers, when the temperature of EML lasers changes,
7th resistance R7 resistance changes, so cause the first amplifier 200 input terminal voltage change so that realize by
The temperature information of EML lasers is converted to information of voltage.
Specifically, the 7th resistance R7 is NTC thermistor.
It should be noted that NTC (Negative Temperature Coefficient) thermistor, i.e. negative temperature system
Number thermistor, is a kind of sensor resistance that a quasi-resistance value increases and reduced with temperature.
Reference picture 3, specifically, the TEC controls circuit also include TEC and limit module 600；The TEC limits module 600
Output end be connected with the limitation end of the drive circuit 500；The TEC limits module 600, detects the electricity of semiconductor cooler
Stream and/or voltage, size limitation is carried out to the electric current and/or voltage.
Specifically, the TEC controls circuit also includes controller 700, and the input of controller 700 is put with described second
The output end connection of big device 300, the output end of the controller 700 is connected with the input of the drive circuit 500；The control
Device 700 processed, is controlled to the control signal that second amplifier 300 is exported, handles.
Specifically, the TEC controls circuit also includes oscillator 800；The output end of the oscillator 800 and the control
The clock end connection of device 700；The oscillator 800, receiving phase is set, and sends oscillator signal to the controller 700.
Specifically, the TEC controls circuit also includes reference voltage module 900, the reference voltage module 900
Input is connected with the reference voltage end of the controller 700；The output end output of the reference voltage module 900 is with reference to electricity
Pressure.
The utility model passes through temperature collection circuit 100, the first amplifier 200, the second amplifier 300, PID compensation circuits
400 and drive circuit 500, form a kind of TEC temperature-control circuits.The temperature information of collection is carried out by two amplifiers
Conversion, and be compared with the setting signal of user's setting, the signal of obtained output passes through PID compensation circuits 400 and reduces mistake
Difference, finally carries out signal driving by drive circuit 500, realizes the control to semiconductor cooler, and then complete to EML lasers
Temperature stabilization.The utility model is also added into TEC limitation modules 600, realizes refrigeration current limit value and sets.It is further complete
Circuit has been apt to it so that the temperature control of EML lasers is more accurate, efficient.
The utility model also proposes a kind of TEC controllers, and the TEC controllers include TEC and control circuit, TEC control electricity
The concrete structure on road is with reference to above-described embodiment, because this TEC controllers employ whole technical schemes of above-mentioned all embodiments,
Therefore all beneficial effects that at least technical scheme with above-described embodiment is brought, this is no longer going to repeat them.
Preferred embodiment of the present utility model is the foregoing is only, the scope of the claims of the present utility model is not thereby limited,
It is every under inventive concept of the present utility model, the equivalent structure made using the utility model specification and accompanying drawing content is become
Change, or directly/be used in other related technical fields indirectly and be included in scope of patent protection of the present utility model.
Claims (10)
1. a kind of TEC controls circuit, for regulating and controlling temperature of EML lasers when using, it is characterised in that including temperature acquisition
Circuit, the first amplifier, the second amplifier, PID compensation circuits and drive circuit；
The temperature collection circuit, gathers the temperature information of EML lasers, and the temperature information is converted into electric signal；
First amplifier, linear signal is converted to by the electric signal；
Second amplifier, receives the setting signal of the linear signal and user's input, by the linear signal with it is described
Setting signal is compared, and outputs control signals to the drive circuit；
The PID compensation circuits, PID compensation is carried out to the control signal；
The drive circuit, receives the control signal, output difference driving voltage to semiconductor cooler.
2. TEC as claimed in claim 1 controls circuit, it is characterised in that the output end of the temperature collection circuit with it is described
The input connection of first amplifier, the output end of first amplifier and the first input end of second amplifier connect
Connect, the output end of second amplifier is connected with the input of the drive circuit, the output end of second amplifier is also
It is connected with the input of the PID compensation circuits, the output end of the PID compensation circuits is inputted with second amplifier first
End connection.
3. TEC as claimed in claim 2 controls circuit, it is characterised in that the PID compensation circuits include first resistor, the
Two resistance, 3rd resistor, the 4th resistance, the first electric capacity, the second electric capacity and the 3rd electric capacity；The first end of 4th resistance and institute
The output end connection of the first amplifier is stated, the second end of the 4th resistance connects with the first input end of second amplifier
Connect；The first end of the first resistor is connected with the input of first amplifier, the second end of the first resistor and institute
State the output end connection of the first amplifier；The first end of first electric capacity is connected with the output end of first amplifier, institute
The second end for stating the first electric capacity is connected with the first end of the second resistance；Second end of the second resistance and the described 3rd electricity
The first end connection of resistance, the first input end of the second end of the second resistance also with second amplifier is connected；Described
Second end of three resistance is connected with the first end of the 3rd electric capacity, the second end and second amplifier of the 3rd electric capacity
Output end connection；The first end of second electric capacity is connected with the second end of the second resistance, and the of second electric capacity
Two ends are connected with the second end of the 3rd electric capacity.
4. TEC as claimed in claim 3 controls circuit, it is characterised in that the temperature collection circuit includes the 5th resistance, the
Six resistance and the 7th resistance；The first end of 5th resistance is connected with power supply, the second end of the 5th resistance and described the
The first end connection of six resistance, the second end of the 6th resistance is connected with the first end of the 7th resistance, the 7th electricity
The second end ground connection of resistance；Input of second end of the 5th resistance also with first amplifier is connected, the 7th electricity
Hinder for thermistor.
5. TEC as claimed in claim 4 controls circuit, it is characterised in that the 7th resistance is NTC thermistor.
6. the TEC control circuits as described in any one of claim 1 to 5, it is characterised in that also limit module including TEC；It is described
The output end of TEC limitation modules is connected with the limitation end of the drive circuit；The TEC limits module, detects semiconductor refrigerating
The electric current and/or voltage of device, size limitation is carried out to the electric current and/or voltage.
7. TEC as claimed in claim 6 controls circuit, it is characterised in that also including controller, the controller input with
The output end connection of second amplifier, the output end of the controller is connected with the input of the drive circuit；It is described
Controller, is controlled to the control signal that second amplifier is exported, handles.
8. TEC as claimed in claim 7 controls circuit, it is characterised in that also including oscillator；The output end of the oscillator
It is connected with the clock end of the controller；The oscillator, receiving phase is set, and sends oscillator signal to the controller.
9. TEC as claimed in claim 7 controls circuit, it is characterised in that also including reference voltage module, the reference voltage
The input of module is connected with the reference voltage end of the controller；The output end output of the reference voltage module is with reference to electricity
Pressure.
10. a kind of TEC controllers, it is characterised in that control circuit including the TEC as described in any one of claim 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720118569.7U CN206451976U (en) | 2017-02-08 | 2017-02-08 | TEC controls circuit and TEC controllers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720118569.7U CN206451976U (en) | 2017-02-08 | 2017-02-08 | TEC controls circuit and TEC controllers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206451976U true CN206451976U (en) | 2017-08-29 |
Family
ID=59664805
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720118569.7U Active CN206451976U (en) | 2017-02-08 | 2017-02-08 | TEC controls circuit and TEC controllers |
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| CN (1) | CN206451976U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107588865A (en) * | 2017-10-23 | 2018-01-16 | 盐城工学院 | Temperature collection circuit and Optical Receivers |
| CN113238594A (en) * | 2021-05-12 | 2021-08-10 | 世强先进(深圳)科技股份有限公司 | TEC temperature automatic control circuit and electrical apparatus |
| CN113607283A (en) * | 2021-08-04 | 2021-11-05 | 浙江兆晟科技股份有限公司 | Temperature control method and system for improving image nonuniformity of infrared detector |
| CN114545996A (en) * | 2022-03-10 | 2022-05-27 | 中国科学院半导体研究所 | Temperature control circuit of semiconductor laser |
-
2017
- 2017-02-08 CN CN201720118569.7U patent/CN206451976U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107588865A (en) * | 2017-10-23 | 2018-01-16 | 盐城工学院 | Temperature collection circuit and Optical Receivers |
| CN113238594A (en) * | 2021-05-12 | 2021-08-10 | 世强先进(深圳)科技股份有限公司 | TEC temperature automatic control circuit and electrical apparatus |
| CN113607283A (en) * | 2021-08-04 | 2021-11-05 | 浙江兆晟科技股份有限公司 | Temperature control method and system for improving image nonuniformity of infrared detector |
| CN114545996A (en) * | 2022-03-10 | 2022-05-27 | 中国科学院半导体研究所 | Temperature control circuit of semiconductor laser |
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