CN110209221A - A kind of temperature control circuit, register, temperature control system and temperature adjustment limiter - Google Patents

Abstract

The present invention provides a kind of temperature control circuit, comprising: temperature collection circuit, logical operation circuit and driving circuit.The present invention first passes through temperature collection circuit acquisition limiter temperature and environment temperature, and corresponding generation limiter temperature signal and ambient temperature signal；Logical operation is carried out to limiter temperature signal and ambient temperature signal by logical operation circuit again and is compared, and, as long as the temperature that comparison result is limiter is greater than target temperature, then logical operation circuit will export control signal, and then register work is driven by driving circuit, cool down for limiter；Even if limiter fever seriously will lead to its temperature and increase again, also the cooling to limiter can be realized again by the above process, and then the temperature limiting of limiter can be fluctuated near target temperature, it is ensured that limiter fever can effectively be cooled down when serious.

Description

A kind of temperature control circuit, register, temperature control system and temperature adjustment limiter

Technical field

The present invention relates to temperature control technique field more particularly to a kind of temperature control circuit, register, temperature control system and Temperature adjustment limiter.

Background technique

Limiter is a kind of common radio-frequency devices, it is generally the case that in order to guarantee the normal operation of circuit, is being mixed To limiter is added before the device of power sensitive, the input power of limiting circuit should not for device, low-noise amplifier, wave detector etc. The power that can bear more than the device to power sensitive.

At present in wind profile radar, limiter is widely applied, but when rainfall, the decline of circulator performance, Power into the signal of limiter increases, since limiter can generate heat, institute during limiting input signal power With the case where when the power of the signal into limiter is excessive, limiter performance decline occurs or burns.

Traditional limiter use cross-ventilation, or by cold plate it is thermally conductive, or both in conjunction with scheme come reduce itself temperature Degree, but when limiter fever is serious, the cooling effect of above-mentioned three kinds of schemes not can guarantee.

Summary of the invention

In view of this, the embodiment of the present invention provides a kind of temperature control circuit, register, temperature control system and temperature adjustment clipping Device.

To achieve the above object, the embodiment of the present invention provides the following technical solutions:

First aspect present invention provides a kind of temperature control circuit, is applied in wind profile radar, in the wind profile radar Register is provided on limiter；The temperature control circuit includes: temperature collection circuit, logical operation circuit and driving electricity Road；Wherein:

The temperature collection circuit is for acquiring and being believed according to the environment temperature build environment temperature of the wind profile radar Number, meanwhile, it acquires and limiter temperature signal is generated according to limiter temperature；

The logical operation circuit is used to carry out logic fortune to the limiter temperature signal and the ambient temperature signal It calculates and compares, and when comparison result is that the limiter temperature is greater than target temperature, output control signals to the driving electricity Road；

The driving circuit is used for when receiving the control signal, and the register is driven to work, and is the limit The cooling of width device.

Optionally, the target temperature is equal to the difference that the environment temperature subtracts fiducial temperature；The fiducial temperature is big In equal to zero.

Optionally, the logical operation circuit, comprising: the first bleeder circuit, first voltage follow circuit, the first subtraction fortune Calculate circuit, second voltage follows circuit and the first comparison circuit；Wherein:

First bleeder circuit generates default partial pressure for receiving and according to supply voltage；

The first voltage follows circuit for generating preset difference value according to the default partial pressure；The preset difference value is Voltage signal corresponding with the fiducial temperature；

The first subtraction circuit is received for subtracting on the basis of the ambient temperature signal received The preset difference value, generate and export target temperature signal to first comparison circuit；

The second voltage follows circuit for generate with a times amplification to the limiter temperature signal received And output chopper follows temperature signal to first comparison circuit；

First comparison circuit is used for when the limiter follows temperature signal to be greater than the target temperature signal, defeated The control signal is to the driving circuit out.

Optionally, the logical operation circuit, comprising: the second bleeder circuit, tertiary voltage follow circuit, the first addition fortune Calculate circuit, the 4th voltage follower circuit and the second comparison circuit；Wherein:

Second bleeder circuit generates default partial pressure for receiving and according to supply voltage；

The tertiary voltage follows circuit for generating and exporting preset difference value to described first according to the predeterminated voltage Adder operation circuit；The preset difference value is voltage signal corresponding with the fiducial temperature；

First adder operation circuit is used on the basis of the limiter temperature signal received plus described Preset difference value, generates and output chopper inversion temperature signal is to the 4th voltage follower circuit；

4th voltage follower circuit is used to carry out the limiter inversion temperature signal to generate and defeated with a times amplification Limiter follows temperature signal to second comparison circuit out；

Second comparison circuit is used to follow temperature signal to be greater than the environment temperature received when the limiter When signal, the control signal is exported to the driving circuit.

Optionally, the logical operation circuit, comprising: third bleeder circuit, the 5th voltage follower circuit, the second subtraction fortune Calculate circuit, third subtraction circuit and the first hysteresis comparison circuit；Wherein:

The third bleeder circuit generates default partial pressure for receiving and according to supply voltage；

5th voltage follower circuit is used to generate according to the predeterminated voltage and export preset difference value to described second Subtraction circuit；The preset difference value is voltage signal corresponding with the fiducial temperature；

The second subtraction circuit is described pre- for subtracting on the basis of the ambient temperature signal received If difference, generates and export target temperature signal to the third subtraction circuit；

The third subtraction circuit on the basis of target temperature signal for subtracting the limit received Width device temperature signal generates and exports the first comparison signal to the first hysteresis comparison circuit；

The first hysteresis comparison circuit is used for when first comparison signal is less than zero, exports the control signal extremely The driving circuit.

Optionally, the logical operation circuit, comprising: the 4th bleeder circuit, the 6th voltage follower circuit, the second addition fortune Calculate circuit, the 4th subtraction circuit and the second hysteresis comparison circuit；Wherein:

4th bleeder circuit generates default partial pressure for receiving and according to supply voltage；

6th voltage follower circuit is used to generate according to the predeterminated voltage and export preset difference value to described second Adder operation circuit；The preset difference value is voltage signal corresponding with the fiducial temperature；

Second adder operation circuit is used on the basis of the limiter temperature signal received plus described Preset difference value, generates and output chopper inversion temperature signal is to the 4th subtraction circuit；

The 4th subtraction circuit is for subtracting the limit on the basis of ambient temperature signal received Width device inversion temperature signal, generates and exports the second comparison signal；

The second hysteresis comparison circuit is used for when second comparison signal is less than zero, then exports the control signal To the driving circuit.

Optionally, the temperature collection circuit, comprising: the first temperature sensor, second temperature sensor, the first transmitting electricity Road and the second transfer circuit；Wherein:

First temperature sensor generates the ambient temperature signal for acquisition and according to the environment temperature, and will The ambient temperature signal is exported by first transfer circuit to the logical operation circuit；

The second temperature sensor generates the limiter temperature signal for acquisition and according to the limiter temperature, And the limiter signal is exported by second transfer circuit to the logical operation circuit.

Optionally, the driving circuit, comprising: control circuit and power supply circuit；Wherein:

The control circuit is used for when receiving the control signal, itself circuit is connected, and export power supply signal To the power supply circuit；

The power supply circuit is used for when receiving the power supply signal, is provided supply voltage for the register, is made The register work, cools down for the limiter.

Optionally, further includes: direct current transformation circuit；Wherein:

The direct current transformation circuit is used to the input voltage received being converted to the temperature collection circuit, the logic Operating voltage needed for computing circuit and the driving circuit, and export.

Second aspect of the present invention provides a kind of register, for radiating for the limiter in wind profile radar, the tune Warm device includes: semiconductor chilling plate；Wherein:

The cold end of the semiconductor chilling plate is set to the side of the limiter；

The semiconductor chilling plate is used to receive supply voltage when limiter temperature is greater than target temperature；Also, works as and connect It when receiving the supply voltage, starts to work, cools down for the limiter.

Optionally, further includes: heat dissipation equipment；The heat dissipation equipment includes: thermal insulation board, fan and radiator；Wherein:

The hot end of the semiconductor chilling plate is set to vertical with the cooling fin in the radiator on the radiator Side, and do not block the inlet and outlet of the radiator；

The fan is set to side opposite with the semiconductor chilling plate on the radiator；

The thermal insulation board is set to side identical with the hot end of the semiconductor chilling plate on the radiator, for filling out Mend the vacancy not covered by the semiconductor chilling plate on the limiter.

Optionally, the radiator, comprising: radiator body, N number of cooling fin and air duct cover board；Wherein:

N number of cooling fin is vertically installed on the radiator body with uniform intervals, and with the radiator master The baffle of body is parallel；N is the integer greater than 1；

The air duct cover board is set on the cooling fin, and is parallel to the bottom plate of the radiator body.

Optionally, the hot end of the semiconductor chilling plate is set to the outside of the air duct cover board, alternatively, the semiconductor The hot end of cooling piece is set to the plate outer side of the radiator body.

Third aspect present invention provides a kind of temperature control system, applied to the limiter in wind profile radar, comprising: such as this hair Described in any item temperature control circuits of bright second aspect and such as the described in any item registers of second aspect of the present invention；Wherein:

The register is set to the side of the limiter；

The output end of the temperature control circuit is connected with the power end of the register.

Optionally, when the register includes heat dissipation equipment, the temperature control circuit is set to the register Side, and it is adjacent with the fan in the limiter and the heat dissipation equipment, and the radiator in the heat dissipation equipment is not blocked Inlet and outlet.

The 4th fermentation of the present invention provides a kind of temperature adjustment limiter, comprising: limiter, such as any one of third aspect present invention institute The temperature control system stated；Wherein:

The temperature control system is set to the side of the limiter.

Optionally, the limiter, comprising: first order diode branch, second level diode branch, third level diode Branch, input branch and output branch；Wherein:

The first end of the first order diode branch, the first end of the second level diode branch, the third level The input terminal of the first end of diode branch, the output end of the input branch and the output branch is connected；

Input terminal of the input terminal of the input branch as the limiter；The output end of the output branch is as institute State the output end of limiter；

The second end of the first order diode branch, the second end and the third of the second level diode branch The second end of grade diode branch is connected, tie point ground connection；

The third end of the first order diode branch, the third end of the second level diode branch and the third The third end of grade diode branch is connected, tie point ground connection.

Optionally, the limiter, comprising: first capacitor, the second capacitor, first diode and the first inductance；Wherein:

Input terminal of the one end of the first capacitor as the limiter；One end of second capacitor is as the limit The output end of width device；

The other end of the first capacitor, the first diode anode be connected, one end of first inductance and The other end of second capacitor is connected；

The other end of the first diode is connected with the other end of first inductance, tie point ground connection.

Optionally, further includes: Switching Power Supply, T/R switch, low noise power supply and low-noise amplifier；Wherein:

When the register in the temperature control system includes heat dissipation equipment, the Switching Power Supply is set to the heat dissipation and sets Side identical with the fan in the heat dissipation equipment on radiator in standby；The T/R switch, the low noise power supply and The low-noise amplifier is all set in side identical with limiter on the radiator.

In terms of existing technologies, the present invention first passes through temperature collection circuit acquisition limiter temperature and environment temperature, And it corresponds to and generates limiter temperature signal and ambient temperature signal；Again by logical operation circuit to limiter temperature signal and ring Border temperature signal carries out logical operation and compares, as long as also, comparison result is the temperature of limiter greater than target temperature, it patrols Control signal will be exported by collecting computing circuit, and then drive register work by driving circuit, be cooled down for limiter；Even if Limiter fever seriously will lead to its temperature and increase again, can also realize the cooling to limiter again by the above process, And then the temperature limiting of limiter can be fluctuated near target temperature, it is ensured that limiter fever can be had when serious The cooling of effect.

Detailed description of the invention

In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this The embodiment of invention for those of ordinary skill in the art without creative efforts, can also basis The attached drawing of offer obtains other attached drawings.

Fig. 1 is a kind of schematic diagram of temperature control circuit provided in an embodiment of the present invention

Fig. 2 a is a kind of schematic diagram of embodiment of the logical operation circuit provided in another embodiment of the present invention；

Fig. 2 b is the schematic diagram of the specific implementation of logical operation circuit in Fig. 2 a；

Fig. 3 a is a kind of schematic diagram of embodiment of the logical operation circuit provided in another embodiment of the present invention；

Fig. 3 b is the schematic diagram of the specific implementation of logical operation circuit in Fig. 3 a；

Fig. 4 a is a kind of schematic diagram of embodiment of the logical operation circuit provided in another embodiment of the present invention；

Fig. 4 b is the schematic diagram of the specific implementation of logical operation circuit in Fig. 4 a；

Fig. 5 a is a kind of schematic diagram of embodiment of the logical operation circuit provided in another embodiment of the present invention；

Fig. 5 b is the schematic diagram of the specific implementation of logical operation circuit in Fig. 5 a；

Fig. 6 a is a kind of schematic diagram of embodiment of the temperature collection circuit provided in another embodiment of the present invention；

Fig. 6 b is the schematic diagram of the another embodiment of the temperature collection circuit provided in the present embodiment；

Fig. 6 c is the schematic diagram of the specific implementation of temperature collection circuit in Fig. 6 b；

Fig. 7 is a kind of schematic diagram of embodiment of the driving circuit provided in another embodiment of the present invention；

Fig. 8 a be another embodiment of the present invention provides a kind of temperature control circuit schematic diagram；

Fig. 8 b is a kind of schematic diagram of embodiment of the direct current transformation circuit provided in another embodiment of the present invention；

Fig. 9 is a kind of schematic diagram of the register provided in another embodiment of the present invention；

Figure 10 be another embodiment of the present invention provides a kind of register schematic diagram；

Figure 11 be another embodiment of the present invention provides radiator a kind of embodiment schematic diagram；

Figure 12 be another embodiment of the present invention provides a kind of temperature control system schematic diagram；

Figure 13 be another embodiment of the present invention provides a kind of temperature adjustment limiter schematic diagram

Figure 14 be another embodiment of the present invention provides limiter a kind of embodiment schematic diagram；

Figure 15 be another embodiment of the present invention provides limiter a kind of embodiment schematic diagram；

Figure 16 a be Figure 16 b be another embodiment of the present invention provides a kind of temperature adjustment limiter be in the signal of different perspectives Figure；

Figure 17 a and Figure 17 b be another embodiment of the present invention provides a kind of temperature adjustment limiter be in the signal of different perspectives Figure.

Specific embodiment

Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other Embodiment shall fall within the protection scope of the present invention.

In order to make the foregoing objectives, features and advantages of the present invention clearer and more comprehensible, with reference to the accompanying drawing and specific real Applying mode, the present invention is described in further detail.

In this application, the terms "include", "comprise" or any other variant thereof is intended to cover non-exclusive inclusion, So that the process, method, article or equipment for including a series of elements not only includes those elements, but also including not having The other element being expressly recited, or further include for elements inherent to such a process, method, article, or device.Do not having There is the element limited in the case where more limiting by sentence "including a ...", it is not excluded that in the mistake including the element There is also other identical elements in journey, method, article or equipment.

In order to ensure can effectively be cooled down when limiter fever is serious, the embodiment of the present invention provides a kind of temperature control electricity Road is applied to wind profile radar, wherein be provided with register on the limiter in wind profile radar；It is provided in this embodiment The specific structure of temperature control circuit such as Fig. 1, comprising: temperature collection circuit 110, logical operation circuit 120 and driving circuit 130.

Specifically, temperature collection circuit 110 acquires the environment temperature of wind profile radar by its first collection terminal；Also, According to the corresponding relationship of temperature value and voltage value, environment temperature is converted into corresponding voltage value, i.e. electric signal, this electric signal note For ambient temperature signal V_AMB；Later, by its first output end by ambient temperature signal V_AMBOutput.

It should be noted that the first collection terminal of temperature collection circuit 110 is generally disposed in the cabinet of wind profile radar, The environment temperature in wind profile radar computer room locating for the cabinet of wind profile radar is acquired, this general environment temperature is at 20 DEG C -28 ℃；But the first collection terminal of temperature collection circuit 110 can also be set to other ground of wind profile radar according to the actual situation Side, is not specifically limited, but within the scope of protection of this application herein.

Meanwhile temperature collection circuit 110 acquires the limiter temperature in wind profile radar by its second collection terminal；And And according to the corresponding relationship of temperature value and voltage value, by limiter temperature transition at corresponding voltage value, i.e. electric signal, this electricity Signal is denoted as limiter temperature signal V_LIMITTER；Later, by its second output terminal by limiter temperature signal V_LIMITTERIt is defeated Out.

It should be noted that the second collection terminal of temperature collection circuit 110 is generally disposed at the limiter of wind profile radar On.

Specifically, logical operation circuit 120 receives ambient temperature signal V by its first input end_AMB, and pass through it Second input terminal receives limiter temperature signal V_LIMITTER；Later, to ambient temperature signal V_AMBWith limiter temperature signal V_LIMITTERIt carries out logical operation and compares, generate comparison result；When comparison result is that limiter temperature is greater than target temperature, lead to Its output end output control signal RELAY_CTR is crossed to driving circuit 130；When comparison result is that limiter temperature is not more than target When temperature, control signal RELAY_CTR is not exported.

Wherein, which can be the temperature value previously according to actual conditions setting, is also possible to environment temperature and subtracts Go the difference of fiducial temperature；Wherein, which is more than or equal to zero, is not particularly limited herein, in the protection of the application In range.

It should be noted that when comparison result is that limiter temperature is greater than target temperature, output control signal RELAY_ CTR, and when comparison result is that limiter temperature is less than or equal to target temperature, control signal RELAY_CTR is not exported, only For distinguishing in two different situations, logical operation circuit 120 can generate two different results；Or it also will be understood that Are as follows: when comparison result is that limiter temperature is greater than target temperature, logical operation circuit 120 exports the first level or high level Signal RELAY_CTR is controlled, and when comparison result is that limiter temperature is less than or equal to target temperature, logical operation circuit output Second electrical level or low level another control signal；It is not particularly limited herein, but within the scope of protection of this application.

Specifically, making itself circuit when driving circuit 130 receives control signal RELAY_CTR by its control terminal Conducting, and exported supply voltage to the positive power source terminal of register and negative supply by its first output end and second output terminal End cools down so that register be driven to work for limiter；When the control terminal of driving circuit 130 does not receive control signal When RELAY_CTR, itself circuit is not turned on, and will not provide supply voltage for register, so that register work cannot be driven Make, cannot cool down for limiter.

In the present embodiment, the present invention first passes through temperature collection circuit 110 and acquires limiter temperature and environment temperature, and right Limiter temperature signal V should be generated_LIMITTERWith ambient temperature signal V_AMB；Again by logical operation circuit 120 to limiter temperature Signal V_LIMITTERWith ambient temperature signal V_AMBIt carries out logical operation and compares, as long as also, comparison result is the temperature of limiter Greater than target temperature, then logical operation circuit will export control signal RELAY_CTR, and then be driven by driving circuit 130 Register work, cools down for limiter；Even if limiter fever seriously will lead to its temperature and increase again, also can be by upper It states process and realizes cooling to limiter again, and then the temperature limiting of limiter can be fluctuated near target temperature, Ensure effectively be cooled down when limiter fever is serious.

Under normal conditions, if presetting a target temperature according to the actual situation, when environment temperature is more than target temperature When more, temperature control circuit still can be when limiter temperature be greater than the target temperature set, and control driving circuit drives Dynamic register is limiter cooling, and when limiter temperature is not more than the target temperature, temperature control circuit stops working, and is considered To there are errors, limiter temperature is close to target temperature, thus limiter temperature is less than environment temperature, and difference is larger, if working as When environment in humidity it is larger, then be easy to be condensed out droplet on limiter, thus be easy induce limiter job failure, in turn Influence the normal work of wind profile radar.

Therefore, in an alternative embodiment of the invention, setting target temperature follows the variation of environment temperature and changes, and changes Degree is identical, i.e., the difference of a fiducial temperature is kept between environment temperature, to avoid because target temperature is lower than environment temperature The difference of degree is larger, it is caused when ambient humidity is larger the phenomenon that being condensed out droplet on limiter.

There are numerous embodiments for the logical operation circuit, can determine target temperature according to environment temperature, specific to tie Structure is as shown in Fig. 2 a, Fig. 3 a, Fig. 4 a and Fig. 5 a；Wherein, as shown in Figure 2 a, which includes: the first bleeder circuit 211, first voltage follows circuit 212, the first subtraction circuit 213, second voltage to follow circuit 214 and the first comparison electric Road 215.

Specifically, the first bleeder circuit 211 receives supply voltage VCC by its input terminal, generated according to supply voltage VCC Default partial pressure, then exported default partial pressure by its output end.

Specifically, first voltage follows circuit 212 to receive predeterminated voltage by its input terminal, default partial pressure is carried out with again Amplification generates preset difference value V_TEMP, and pass through its output end for preset difference value V_TEMPOutput；Wherein preset difference value V_TEMPFor with it is pre- If the corresponding voltage signal of the temperature difference.

It should be noted that under normal conditions, first voltage follows circuit 212 due to the presence of error, generation is preset Difference V_TEMP, can not be essentially equal only close to default partial pressure, it also requires guaranteeing error within the allowable range, if error mistake Greatly, then it needs to overhaul or replace first voltage and follows circuit 212.

Specifically, the first subtraction circuit 213 receives ambient temperature signal V by its non-inverting input terminal_AMB, Yi Jitong It crosses its inverting input terminal and receives preset difference value V_TEMP；Later, in ambient temperature signal V_AMBOn the basis of subtract preset difference value V_TEMP, Generate target temperature signal；Also, target temperature signal is exported by its output end.

Wherein, target temperature signal voltage value be equal to voltage value corresponding with target temperature, i.e., target temperature signal be with The corresponding electric signal of target temperature.

Specifically, second voltage follows circuit 214 to receive limiter temperature signal V by its input terminal_LIMITTER, to clipping Device temperature signal V_LIMITTERGenerate limiter with times amplifying and follow temperature signal, and by its output end by limiter with It is exported with temperature signal.

It should be noted that under normal conditions, second voltage follows circuit 214 due to the presence of error, the clipping of generation Device follows temperature signal only close to limiter temperature signal V_LIMITTER, it can not be essentially equal, it also requires guaranteeing that error exists In allowed band, if error is excessive, needs to overhaul or replace second voltage and follow circuit 214.

It should also be noted that, since limiter follows temperature signal close to limiter temperature signal V_LIMITTER, and clipping Device temperature signal V_LIMITTERIt is electric signal corresponding with limiter temperature, so limiter follows the temperature signal to be also and limiter The corresponding electric signal of temperature.

Specifically, the first comparison circuit 215 follows temperature signal by its non-inverting input terminal reception limiter and passes through Its inverting input terminal receives target temperature signal；Also, temperature signal and target temperature signal is followed to be compared limiter.

It should be noted that be electric signal corresponding with limiter temperature since limiter follows temperature signal, and target Temperature signal is electric signal corresponding with target temperature, so following temperature signal and target temperature signal to compare limiter Compared with being equal to and be compared limiter temperature and target temperature.

Further, when limiter follows temperature signal to be greater than target temperature signal, i.e., when comparison result is limiter temperature When degree is greater than target temperature, control signal RELAY_CTR is exported by its output end；When limiter follow temperature signal be less than etc. When target temperature signal, i.e., when comparison result is that limiter temperature is less than or equal to target temperature, control signal is not exported RELAY_CTR。

Structure shown in Fig. 2 a can be realized using suitable circuit topology, be not specifically limited, be can be realized herein The function of each circuit is stated, within the scope of protection of this application.

Optionally, a kind of specific implementation of the first bleeder circuit 211, structure such as Fig. 2 b, comprising: first resistor R1 With second resistance R2；Wherein:

First resistor R1 and second resistance R2 series connection, concatenated one end receive supply voltage VCC, concatenated another termination Ground, concatenated midpoint export predeterminated voltage.

It should be noted that default partial pressure is to be set according to actual requirement by first resistor R1 and second resistance R2； Accordingly it is also possible to regulate and control default partial pressure by adjusting first resistor R1 and second resistance R2；Partial pressure is wherein preset to be more than or equal to Zero.

In the present embodiment, first voltage follows a kind of specific implementation of circuit 212, structure such as Fig. 2 b, comprising: First operational amplifier U2A and 3rd resistor R3；Wherein:

The non-inverting input terminal of first operational amplifier U2A follows the input terminal of circuit 212, anti-phase input as first voltage End is connected by 3rd resistor R3 with its output end, and tie point follows the output end of circuit 212 as first voltage.

The positive power source terminal of first operational amplifier U2A receives power supply positive voltage, negative power end ground connection.

In the present embodiment, a kind of specific implementation of the first subtraction circuit 213, structure such as Fig. 2 b, comprising: Second operational amplifier U2B, third capacitor C3, the second inductance L2, the 4th resistance R4, the 5th resistance R5, the 6th resistance R6, the 7th Resistance R7, the 8th resistance R8 and the 9th resistance R9；Wherein:

The non-inverting input terminal of second operational amplifier U2B is connected with one end of the 6th resistance R6, and tie point passes through the 5th electricity Hinder non-inverting input terminal of the R5 as the first subtraction circuit；The other end of 6th resistance R6 is grounded.

The inverting input terminal of second operational amplifier U2B is connected with one end of the 4th resistance R4, tie point and the 7th resistance One end of R7 is connected；Inverting input terminal of the other end of 4th resistance R4 as the first subtraction circuit 213.

The other end of 7th resistance R7 is connected with the output end of second operational amplifier U2B, tie point and the 8th resistance R8 One end be connected.

One end of the other end of 8th resistance R8, one end of the 9th resistance R9 and third capacitor C3 is connected, tie point It is connected with one end of the second inductance L2；The other end of 9th resistance R9 is grounded；The other end of third capacitor C3 is grounded；First inductance Output end of the other end of L1 as the first subtraction circuit 213.

The positive power source terminal of third operational amplifier U2B receives power supply positive voltage, negative power end ground connection.

In the present embodiment, second voltage follows a kind of specific implementation of circuit 214, structure such as Fig. 2 b, comprising: Third operational amplifier U2C, the 4th capacitor C4, third inductance L3, the tenth resistance R10, the electricity of eleventh resistor R11 and the 12nd Hinder R12；Wherein:

The non-inverting input terminal of third operational amplifier U2C follows the input terminal of circuit 214 as second voltage；Third operation The inverting input terminal of amplifying circuit U2C is connected by the tenth resistance R10 with its output end, and tie point is with eleventh resistor R11's One end is connected.

The other end of eleventh resistor R11, one end of twelfth resistor R12, one end of the 4th capacitor C4 and third electricity The one end for feeling L3 is connected；The other end of twelfth resistor R12 is grounded；The other end of 4th capacitor C4 is grounded；Third inductance L3 The other end output end of circuit 214 is followed as second voltage.

The positive power source terminal of third operational amplifier U2C receives power supply positive voltage, negative power end ground connection.

In the present embodiment, a kind of specific implementation of the first comparison circuit 215, structure such as Fig. 2 b, comprising: the 4th Operational amplification circuit U2D, thirteenth resistor R13, the 5th capacitor C5 and the 4th inductance L4；Wherein:

Non-inverting input terminal of the non-inverting input terminal of 4th operational amplification circuit U2D as the first comparison circuit 215, reverse phase are defeated Enter inverting input terminal of the end as the first comparison circuit 215, output end passes through one end of thirteenth resistor R13 and the 4th inductance L4 It is connected, output end of the other end of the 4th inductance L4 as the first comparison circuit 215.

The positive power source terminal of 4th operational amplification circuit U2D is connected with one end of the 5th capacitor C5, and tie point is receiving power supply just Voltage, the other end ground connection of the 5th capacitor C5；The negative power end of 4th operational amplification circuit U2D is grounded.

Another determines the logical operation circuit of target temperature, specific structure such as Fig. 3 a according to environment temperature, comprising: Second bleeder circuit 221, tertiary voltage follow circuit 222, the first adder operation circuit 223, the 4th voltage follower circuit 224 with And second comparison circuit 225.

Specifically, the second bleeder circuit 221 receives supply voltage VCC by its input terminal, generated according to supply voltage VCC Default partial pressure, then exported default partial pressure by its output end.

It should be noted that default partial pressure is set according to actual requirement；Also, by adjusting the second bleeder circuit 221 In the adjustable generation of resistance default partial pressure, wherein default partial pressure is more than or equal to zero.

Specifically, tertiary voltage follows circuit 222 to receive predeterminated voltage by its input terminal, default partial pressure is carried out with again Amplification generates preset difference value V_TEMP, and pass through its output end for preset difference value V_TEMPOutput；Wherein preset difference value V_TEMPFor with it is pre- If the corresponding voltage signal of the temperature difference.

It should be noted that under normal conditions, tertiary voltage follows circuit 222 due to the presence of error, generation is preset Difference V_TEMP, can not be essentially equal only close to default partial pressure, it also requires guaranteeing error within the allowable range, if error mistake Greatly, then it needs to overhaul or replace tertiary voltage and follows circuit 222.

Specifically, the first adder operation circuit 223 receives limiter temperature signal V by its first input end_LIMITTER, with And preset difference value V is received by its second input terminal_TEMP；Later, by limiter temperature signal V_LIMITTERWith preset difference value V_TEMP Summation generates limiter inversion temperature signal；Also, limiter inversion temperature signal is exported by its output end.

It should be noted that due to limiter temperature signal V_LIMITTERCorresponding temperature value is limiter temperature, and with Preset difference value V_TEMPCorresponding temperature value is fiducial temperature, so temperature value corresponding with limiter inversion temperature signal is equal to limit Width device temperature adds fiducial temperature.

Specifically, the 4th voltage follower circuit 224 receives limiter inversion temperature signal by its input terminal, to limiter Inversion temperature signal generate limiter with a times amplification and follow signal, and follow temperature to believe limiter by its output end Number output.

It should be noted that under normal conditions, presence of the 4th voltage follower circuit 224 due to error, the clipping of generation Device follows temperature signal only close to limiter temperature signal V_LIMITTER, it can not be essentially equal, it also requires guaranteeing that error exists In allowed band, if error is excessive, need to overhaul or replace the 4th voltage follower circuit 224.

It should also be noted that, since limiter follows temperature signal close to limiter inversion temperature signal, and and clipping The corresponding temperature value of device inversion temperature signal is equal to limiter temperature and adds fiducial temperature, so following temperature signal with limiter Corresponding temperature value is equal to limiter temperature and adds fiducial temperature.

Specifically, the second comparison circuit 225, which receives limiter by its non-inverting input terminal, follows temperature signal, and pass through Its inverting input terminal receives ambient temperature signal V_AMB；Also, limiter is followed into temperature signal and ambient temperature signal V_AMBInto Row compares.

It should be noted that due to following the corresponding temperature value of temperature signal to be equal to limiter temperature plus pre- with limiter If the temperature difference, and with ambient temperature signal V_AMBCorresponding temperature value is environment temperature, so limiter is followed temperature signal and ring Border temperature signal is compared, and is equal to and is compared limiter temperature with environment temperature plus the sum of fiducial temperature, therefore It is equal to and is compared limiter temperature with the difference that environment temperature subtracts fiducial temperature, and environment temperature subtracts fiducial temperature Difference be equal to target temperature, limiter temperature is compared with target temperature so being also equal to.

Further, when limiter follows temperature signal to be greater than ambient temperature signal V_AMBWhen, i.e., when comparison result is limiter When temperature is greater than target temperature, control signal RELAY_CTR is exported by its output end；When limiter follows temperature signal to be less than Equal to ambient temperature signal V_AMBWhen, i.e., when comparison result is that limiter temperature is less than or equal to target temperature, do not export control letter Number RELAY_CTR.

Structure shown in Fig. 3 a can be realized using suitable circuit topology, be not specifically limited, be can be realized herein The function of each circuit is stated, within the scope of protection of this application.

Optionally, a kind of specific implementation of the second bleeder circuit 221, structure such as Fig. 3 b, comprising: the 14th resistance R14 and the 15th resistance R15；Wherein:

14th resistance R14 and the 15th resistance R15 forms series connection, and concatenated one end receives supply voltage VCC, concatenated Other end ground connection, concatenated midpoint export predeterminated voltage.

It should be noted that default partial pressure be according to actual requirement by the 14th resistance R14 and the 15th resistance R15 come Setting；Accordingly it is also possible to regulate and control default partial pressure by adjusting the 14th resistance R14 and the 15th resistance R15；It wherein presets and divides Pressure is more than or equal to zero.

In the present embodiment, second voltage follows a kind of specific implementation of circuit 222, structure such as Fig. 3 b, comprising: 5th operational amplifier U2E and the 16th resistance R16；Wherein:

The non-inverting input terminal of 5th operational amplifier U2E follows the input terminal of circuit 222, anti-phase input as tertiary voltage End is connected by the 16th resistance R16 with its output end, and the tie point of its output end and the 16th resistance R16 are as the second electricity Pressure follows the output end of circuit 222.

The positive power source terminal of 5th operational amplifier U2E receives power supply positive voltage, negative power end ground connection.

In the present embodiment, a kind of specific implementation of the first adder operation circuit 223, structure such as Fig. 3 b, comprising: 6th operational amplifier U2F, the 6th capacitor C6, the 5th inductance L5, the 17th resistance R17, the 18th resistance R18, the 19th electricity Hinder R19, the 20th resistance R20, the 21st resistance R21 and the 22nd resistance R22；Wherein:

The non-inverting input terminal of 6th operational amplifier U2F is connected with one end of the 18th resistance R18, tie point and the 19th One end of resistance R19 is connected；First input end of the other end of 18th resistance R18 as the first adder operation circuit 223；The Second input terminal of the other end of 19 resistance R19 as the first adder operation circuit 223.

One end of the inverting input terminal of 6th operational amplifier U2F, the 17th resistance R17, one end of the 20th resistance R20 It is connected；The other end of 17th resistance R17 is grounded；The other end of 20th resistance R20, the 6th operational amplifier U2F it is defeated One end of outlet and the 21st resistance R21 are connected；The other end of 21st resistance R21, the 22nd resistance R22 One end of one end, one end of the 6th capacitor C6 and the 5th inductance L5 is connected；The other end of 5th inductance L5 adds as first The output end of method computing circuit 223；The other end of 22nd resistance R22 and the other end of the 6th capacitor C6 are grounded.

The positive power source terminal of 6th operational amplifier U2F receives power supply positive voltage, negative power end ground connection.

In the present embodiment, a kind of specific implementation of the 4th voltage follower circuit 224, structure such as Fig. 3 b, comprising: 7th operational amplifier U2G, the 7th capacitor C7, the 6th inductance L6, the 23rd resistance R23, the 24th resistance R24 and 25 resistance R25；Wherein:

Input terminal of the non-inverting input terminal of 7th operational amplifier U2G as the 4th voltage follower circuit 224, anti-phase input End is connected by the 23rd resistance R23 with its output end, and the tie point and second of its output end and the 23rd resistance R23 One end of 14 resistance R24 is connected；The other end of 24th resistance R24, one end of the 25th resistance R25, the 7th capacitor One end of C7 and one end of the 6th inductance L6 are connected；The other end of 25th resistance R25 is grounded；7th capacitor C7's is another One end ground connection；Output end of the other end of 6th inductance L6 as the 4th voltage follower circuit 224.

The positive power source terminal of 7th operational amplifier U2G receives power supply positive voltage, negative power end ground connection.

In the present embodiment, a kind of specific implementation of the second comparison circuit 225, structure such as Fig. 3 b, comprising: the 8th Operational amplification circuit U2H, the 26th resistance R26, the 8th capacitor C8 and the 7th inductance L7；Wherein:

Non-inverting input terminal of the non-inverting input terminal of 8th operational amplification circuit U2H as the second comparison circuit 225, reverse phase are defeated Enter inverting input terminal of the end as the second comparison circuit 225, output end passes through the one of the 26th resistance R26 and the 7th inductance L7 End is connected, output end of the other end of the 7th inductance L7 as the second comparison circuit 225.

The positive power source terminal of 8th operational amplification circuit U2H is connected with one end of the 8th capacitor C8, and tie point is receiving power supply just Voltage, the other end ground connection of the 8th capacitor C8；The negative power end of 8th operational amplification circuit U2H is grounded.

Another determines the logical operation circuit of target temperature, specific structure such as Fig. 4 a according to environment temperature, comprising: Third bleeder circuit 231, the 5th voltage follower circuit 232, the second subtraction circuit 233, third subtraction circuit 234 with And the first hysteresis comparison circuit 235.

Specifically, third bleeder circuit 231 receives supply voltage VCC by its input terminal, generated according to supply voltage VCC Default partial pressure, then exported default partial pressure by its output end.

It should be noted that default partial pressure is set according to actual requirement；Also, by adjusting third bleeder circuit 231 In the adjustable generation of resistance default partial pressure, wherein default partial pressure is more than or equal to zero.

Specifically, the 5th voltage follower circuit 232 receives predeterminated voltage by its input terminal, default partial pressure is carried out with again Amplification generates preset difference value V_TEMP, and pass through its output end for preset difference value V_TEMPOutput；Wherein preset difference value V_TEMPFor with it is pre- If the corresponding voltage signal of the temperature difference.

It should be noted that under normal conditions, the 5th voltage follower circuit 232 due to error presence, generation it is default Difference V_TEMP, can not be essentially equal only close to default partial pressure, it also requires guaranteeing error within the allowable range, if error mistake Greatly, then need to overhaul or replace the 5th voltage follower circuit 232.

Specifically, the second subtraction circuit 233 receives ambient temperature signal V by its non-inverting input terminal_AMB, Yi Jitong It crosses its inverting input terminal and receives preset difference value V_TEMP；Later, in ambient temperature signal V_AMBOn the basis of subtract preset difference value V_TEMP, Generate target temperature signal；And target temperature signal is exported by its output end.

Wherein, target temperature signal voltage value be equal to voltage value corresponding with target temperature, i.e., target temperature signal be with The corresponding electric signal of target temperature.

Specifically, third subtraction circuit 234 receives target temperature signal by its non-inverting input terminal, and pass through it Inverting input terminal receives limiter temperature signal V_LIMITTER；Later, limiter temperature is subtracted on the basis of target temperature signal Signal V_LIMITTER, generate the first comparison signal；And the first comparison signal is exported by its output end.

Specifically, the first hysteresis comparison circuit 235 receives the first comparison signal by its input terminal；Also, by the first ratio It is compared compared with signal and zero.

It should be noted that subtracting limiter temperature signal since the first comparison signal is equal to target temperature signal V_LIMITTER, so the first comparison signal and zero are compared, it is equal to limiter temperature signal V_LIMITTERAnd target temperature Signal is compared, and limiter temperature signal V_LIMITTERIt is electric signal corresponding with limiter temperature, and target temperature signal It is electric signal corresponding with target temperature, therefore is also equal to and is compared limiter temperature and target temperature.

Further, when the first comparison signal is less than zero, i.e., when comparison result is that limiter temperature is greater than target temperature, lead to Cross its output end output control signal RELAY_CTR；When the first comparison signal is more than or equal to zero, i.e., comparison result is limiter When temperature is less than or equal to target temperature, control signal RELAY_CTR is not exported.

Structure shown in Fig. 4 a can be realized using suitable circuit topology, be not specifically limited, be can be realized herein The function of each circuit is stated, within the scope of protection of this application.

Optionally, a kind of specific implementation of third bleeder circuit 231, structure such as Fig. 4 b, comprising: the 27th electricity Hinder R27 and the 28th resistance R28；Wherein:

27th resistance R27 and the 28th resistance R28 series connection, concatenated one end receives supply voltage VCC, concatenated Other end ground connection, concatenated midpoint export predeterminated voltage.

It should be noted that default partial pressure is to pass through the 27th resistance R27 and the 28th resistance according to actual requirement R28 is set；Accordingly it is also possible to regulate and control default partial pressure by adjusting the 27th resistance R27 and the 28th resistance R28； It wherein presets partial pressure and is more than or equal to zero.

In the present embodiment, a kind of specific implementation of the 5th voltage follower circuit 232, structure such as Fig. 4 b, comprising: 9th operational amplifier U2I and the 29th resistance R29；Wherein:

Input terminal of the non-inverting input terminal of 9th operational amplifier U2I as the 5th voltage follower circuit 232, anti-phase input End is connected by the 29th resistance R29 with its output end, and the tie point of its output end and the 29th resistance R29 are as the The output end of five voltage follower circuits 232.

The positive power source terminal of 9th operational amplifier U2I receives power supply positive voltage, and negative power end receives.

In the present embodiment, a kind of specific implementation of the second subtraction circuit 233, structure such as Fig. 4 b, comprising: Tenth operational amplifier U2J, the 30th resistance R30, the 31st resistance R31, the electricity of the 32nd resistance R32 and the 33rd Hinder R33；Wherein:

The non-inverting input terminal of tenth operational amplifier U2J, one end of the 31st resistance R31 and the 32nd resistance One end of R32 is connected；Non-inverting input terminal of the other end of 31st resistance R31 as the second subtraction circuit 233；The The other end of 32 resistance R32 is grounded.

The inverting input terminal of tenth operational amplifier U2J, one end of the 30th resistance R30 and the 33rd resistance R33 One end be connected；Inverting input terminal of the other end of 30th resistance R30 as the second subtraction circuit 233；30th The other end of three resistance R33 is connected with the output end of the tenth operational amplifier U2J, and tie point is as the second subtraction circuit 233 output end.

The positive power source terminal of tenth operational amplifier U2J receives power supply positive voltage, negative power end ground connection.

In the present embodiment, a kind of specific implementation of third subtraction circuit 234, structure such as Fig. 4 b, comprising: 11st operational amplifier U2K, the 8th inductance L8, the 34th resistance R34, the 35th resistance R35, the 36th resistance R36, the 37th resistance R37 and the 38th resistance R38；Wherein:

The non-inverting input terminal of 11st operational amplifier U2K, one end of the 35th resistance R35 and the 36th resistance One end of R36 is connected；Non-inverting input terminal of the other end of 35th resistance R35 as third subtraction circuit 234；The The other end of 36 resistance R36 is grounded.

The inverting input terminal of 11st operational amplifier U2K, one end of the 34th resistance R34 and the 37th resistance One end of R37 is connected；Inverting input terminal of the other end of 34th resistance R34 as third subtraction circuit 234；The The other end of 37 resistance R37 is connected with the output end of the 11st operational amplifier U2K, and tie point passes through the 38th resistance R38 is connected with one end of the 8th inductance L8；Output end of the other end of 8th inductance L8 as third subtraction circuit 234.

The positive power source terminal of 11st operational amplifier U2K receives power supply positive voltage, negative power end ground connection.

In the present embodiment, a kind of specific implementation of the first hysteresis comparison circuit 235, structure such as Fig. 4 b, comprising: 12nd operational amplifier U2L, the 9th capacitor C9, the 9th inductance L9, the 39th resistance R39, the 40th resistance R40, the 4th 11 resistance R41 and the 42nd resistance R42；Wherein:

The non-inverting input terminal of 12nd operational amplifier U2L, one end of the 39th resistance R39, the 41st resistance R41 One end be connected；The other end of 39th resistance R39 is grounded；The other end of 41st resistance R41, the 12nd operation are put The output end of big device U2L, one end of the 42nd resistance R42 are connected；The other end and the 9th inductance of 42nd resistance R42 One end of L9 is connected, output end of the other end of the 9th inductance L9 as the first hysteresis comparison circuit 235.

The inverting input terminal of 12nd operational amplifier U2L is by the 40th resistance R40 as the first hysteresis comparison circuit 235 input terminal.

The positive power source terminal of 12nd operational amplifier U2L is connected with one end of the 9th capacitor C9, and tie point is receiving power supply just Voltage, the other end ground connection of the 9th capacitor C9；The negative power end of 12nd operational amplifier U2L is grounded.

Another determines the logical operation circuit of target temperature, specific structure such as Fig. 5 a according to environment temperature, comprising: 4th bleeder circuit 241, the 6th voltage follower circuit 242, the second adder operation circuit 243, the 4th subtraction circuit 244 with And the second hysteresis comparison circuit 245.

Specifically, the 4th bleeder circuit 241 receives supply voltage VCC by its input terminal, generated according to supply voltage VCC Default partial pressure, then exported default partial pressure by its output end.

It should be noted that default partial pressure is set according to actual requirement；Also, by adjusting the 4th bleeder circuit 241 In the adjustable generation of resistance default partial pressure, wherein default partial pressure is more than or equal to zero.

Specifically, the 6th voltage follower circuit 242 receives predeterminated voltage by its input terminal, default partial pressure is carried out with again Amplification generates preset difference value V_TEMP, and pass through its output end for preset difference value V_TEMPOutput；Wherein preset difference value V_TEMPFor with it is pre- If the corresponding voltage signal of the temperature difference.

It should be noted that under normal conditions, the 6th voltage follower circuit 242 due to error presence, generation it is default Difference V_TEMP, can not be essentially equal only close to default partial pressure, it also requires guaranteeing error within the allowable range, if error mistake Greatly, then need to overhaul or replace the 6th voltage follower circuit 242.

Specifically, the second adder operation circuit 243 receives limiter temperature signal V by its first input end_LIMITTER, with And preset difference value V is received by the second input terminal_TEMP；Later, by limiter temperature signal V_LIMITTERWith preset difference value V_TEMPIt asks With generation limiter inversion temperature signal；Also, limiter inversion temperature signal is exported by its output end.

It should be noted that due to limiter temperature signal V_LIMITTERCorresponding temperature value is limiter temperature, and with Preset difference value V_TEMPCorresponding temperature value is fiducial temperature, so temperature value corresponding with limiter inversion temperature signal is equal to limit Width device temperature adds fiducial temperature.

Specifically, the 4th subtraction circuit 244 receives ambient temperature signal V by its non-inverting input terminal_AMB, Yi Jitong It crosses its inverting input terminal and receives limiter inversion temperature signal；Later, in ambient temperature signal V_AMBOn the basis of subtract limiter Inversion temperature signal generates the second comparison signal；And the second comparison signal is exported by its output end.

Specifically, the second hysteresis comparison circuit 245 receives the second comparison signal by input terminal；Also, by comparison signal It is compared with zero.

It should be noted that since the second comparison signal is equal to ambient temperature signal V_AMBSubtract limiter inversion temperature letter Number, so the second comparison signal and zero are compared, it is equal to limiter inversion temperature signal and ambient temperature signal V_AMB It is compared, the embodiment as shown in Fig. 3 a is it is found that by limiter inversion temperature signal and ambient temperature signal V_AMBCompared Compared with being equal to and be compared limiter temperature and target temperature.

Further, when the second comparison signal is less than zero, i.e., when comparison result is that limiter temperature is greater than target temperature, lead to Cross its output end output control signal RELAY_CTR；When the second comparison signal is greater than zero, i.e., comparison result is limiter temperature When less than or equal to target temperature, control signal RELAY_CTR is not exported.

Structure shown in Fig. 5 a can be realized using suitable circuit topology, be not specifically limited, be can be realized herein The function of each circuit is stated, within the scope of protection of this application.

Optionally, a kind of specific implementation of the 4th bleeder circuit 241, structure such as Fig. 5 b, comprising: the 43rd electricity Hinder R43 and the 44th resistance R44；Wherein:

43rd resistance R43 and the 44th resistance R44 series connection, concatenated one end receives supply voltage VCC, concatenated Other end ground connection, concatenated midpoint export predeterminated voltage.

It should be noted that default partial pressure is to pass through the 43rd resistance R43 and the 44th resistance according to actual requirement R44 is set；Accordingly it is also possible to regulate and control default partial pressure by adjusting the 43rd resistance R43 and the 44th resistance R44； It wherein presets partial pressure and is more than or equal to zero.

In the present embodiment, a kind of specific implementation of the 6th voltage follower circuit 242, structure such as Fig. 5 b, comprising: 13rd operational amplifier U2M and the 45th resistance R45；Wherein:

Input terminal of the non-inverting input terminal of 13rd operational amplifier U2M as the 6th voltage follower circuit 242, reverse phase are defeated Enter end to be connected by the 45th resistance R45 with its output end, and the tie point conduct of its output end and the 45th resistance R45 The output end of 6th voltage follower circuit 242.

The positive power source terminal of 13rd operational amplifier U2M receives power supply positive voltage, and negative power end receives power supply negative voltage.

In the present embodiment, a kind of specific implementation of the second adder operation circuit 243, structure such as Fig. 5 b, comprising: Tenth four-operational amplifier U2N, the 46th resistance R46, the 47th resistance R47, the 48th resistance R48 and the 40th Nine resistance R49；Wherein:

The non-inverting input terminal of tenth four-operational amplifier U2N, one end of the 46th resistance R46 and the 47th resistance One end of R47 is connected；First input end of the other end of 46th resistance R46 as the second adder operation circuit 243；The Second input terminal of the other end of 47 resistance R47 as the second adder operation circuit 243.

The inverting input terminal of tenth four-operational amplifier U2N, one end of the 48th resistance R48 and the 49th resistance One end of R49 is connected；The other end of 48th resistance R48 is grounded；The other end of 49th resistance R49 and the 14th fortune The output end for calculating amplifier U2N is connected, output end of the tie point as the second adder operation circuit 243.

The positive power source terminal of tenth four-operational amplifier U2N receives power supply positive voltage, and negative power end receives power supply negative voltage.

In the present embodiment, a kind of specific implementation of the 4th subtraction circuit 244, structure such as Fig. 5 b, comprising: 15th operational amplifier U2O, the tenth inductance L10, the 50th resistance R50, the 51st resistance R51, the 52nd resistance R52, the 53rd resistance R53 and the 54th resistance R54；Wherein:

The non-inverting input terminal of 15th operational amplifier U2O, one end of the 51st resistance R51 and the 52nd resistance One end of R52 is connected；Non-inverting input terminal of the other end of 51st resistance R51 as the 4th subtraction circuit 244；The The other end of 52 resistance R52 is grounded.

The inverting input terminal of 15th operational amplifier U2O, one end of the 50th resistance R50 and the 53rd resistance One end of R53 is connected；Inverting input terminal of the other end of 50th resistance R50 as the 4th subtraction circuit 244；5th The output end of the other end of 13 resistance R53, the other end of the 54th resistance R54 and the 15th operational amplifier U2O is equal It is connected；The other end of 54th resistance R54 is connected with one end of the tenth inductance L10；The other end of tenth inductance L10 is as The output end of four subtraction circuits 244.

The positive power source terminal of 15th operational amplifier U2O receives power supply positive voltage, and negative power end receives power supply negative voltage.

In the present embodiment, a kind of specific implementation of the second hysteresis comparison circuit 245, structure such as Fig. 5 b, comprising: 16th operational amplifier U2P, the tenth capacitor C10, the 11st inductance L11, the 55th resistance R55, the 56th resistance R56, the 57th resistance R87 and the 58th resistance R58；Wherein:

The non-inverting input terminal of 16th operational amplifier U2P, one end of the 55th resistance R55, the 57th resistance R57 One end be connected；The other end of 55th resistance R55 is grounded；The other end of 57th resistance R57, the 16th operation are put The output end of big device U2P, one end of the 58th resistance R58 are connected；The other end of 58th resistance R58 and the 11st electricity The one end for feeling L11 is connected, output end of the other end of the 11st inductance L11 as the second hysteresis comparison circuit 245.

The inverting input terminal of 12nd operational amplifier U2L is by the 40th resistance R40 as the first hysteresis comparison circuit 235 input terminal.

The positive power source terminal of 16th operational amplifier U2P is connected with one end of the tenth capacitor C10, and tie point is receiving power supply just Voltage, the other end ground connection of the tenth capacitor C10；The negative power end of 16th operational amplifier U2P is grounded.

The specific embodiment of above-mentioned several logical operation circuits is only some examples, be not limited in practical application on Form is stated, the implementation of its corresponding function depending on its application environment, can be can be realized in the protection scope of the application It is interior.

Remaining structure and principle are same as the previously described embodiments, no longer repeat one by one herein.

In another embodiment of the invention, a kind of embodiment of temperature collection circuit 110 is provided, specific structure is as schemed 6a, comprising: the first temperature sensor 310, second temperature sensor 320, the first transfer circuit 330 and the second transfer circuit 340。

Specifically, first collection terminal of first temperature sensor 310 as temperature collection circuit 110, is set to Wind outline In the cabinet of radar, the environment temperature of wind profile radar is acquired, also, according to the corresponding relationship of temperature and voltage value, by environment Temperature value is converted into corresponding voltage value, i.e. electric signal；Wherein, this electric signal is denoted as ambient temperature signal V_AMB；Later, pass through Its output end is by ambient temperature signal V_AMBOutput.

Specifically, second collection terminal of the second temperature sensor 320 as temperature collection circuit 110, is set to limiter On, limiter temperature is acquired, also, according to the corresponding relationship of temperature value and voltage value, by limiter temperature transition at corresponding Voltage value, i.e. electric signal；Wherein, this electric signal is denoted as limiter temperature signal V_LIMITTER；Later, by its output end by clipping Device temperature signal V_LIMITTEROutput.

It should be noted that the first temperature sensor 310 and second temperature sensor 320 can use model The temperature sensor of LM35CZ, for this temperature sensor at 0 DEG C, the voltage value of output is 0v, and later, every 1 DEG C of the increase of temperature is defeated Voltage value out increases 10mv.

Specifically, the first transfer circuit 330 receives ambient temperature signal V by its input terminal_AMB, environment temperature is believed Number V_AMBIt is transmitted to its output end, and passes through its output end for ambient temperature signal V_AMBOutput；Wherein, the first transfer circuit 330 First output end of the output end as temperature collection circuit 110.

Specifically, the second transfer circuit 340 receives limiter temperature signal V by its input terminal_LIMITTER, by limiter Temperature signal V_LIMITTERIt is transmitted to its output end, and passes through its output end for limiter temperature signal V_LIMITTEROutput；Wherein, Second output terminal of the output end of second transfer circuit 340 as temperature collection circuit 110.

Optionally, on the basis of temperature collection circuit 110 is shown in Fig. 6 a, such as Fig. 6 b, further includes: the first power supply circuit 350 and second power supply circuit 360.

Specifically, the first power supply circuit 350 receives supply voltage by first input end, terminated by its second input Ground；Its first output end is connected with the positive power source terminal of the first temperature sensor 310, second output terminal and the first temperature sensor 310 negative power end is connected；Wherein, the first input end of the first power supply circuit 350 is as the first defeated of temperature collection circuit 110 Enter end, second input terminal of second input terminal as temperature collection circuit 110.

Specifically, the second power supply circuit 360 receives supply voltage by first input end, terminated by its second input Ground；Its first output end is connected with the positive power source terminal of second temperature sensor 320, second output terminal and second temperature sensor 320 negative power end is connected；Wherein, the first input end of the second power supply circuit 360 is defeated as the third of temperature collection circuit 110 Enter end, fourth input terminal of second input terminal as temperature collection circuit 110.

Structure shown in Fig. 6 a and Fig. 6 b can be realized using suitable circuit topology, be not specifically limited herein, can Realize the function of above-mentioned each circuit, within the scope of protection of this application.

Optionally, a kind of specific implementation of temperature collection circuit 110, structure such as Fig. 6 c, comprising: the first temperature passes Sensor 310, second temperature sensor 320, the 11st capacitor C11, the 12nd capacitor C12, the 13rd capacitor C13, the 14th electricity Hold C14, the 12nd inductance L12 and the 13rd inductance L13；Wherein:

First collection terminal of first temperature sensor 310 as temperature collection circuit 110；First temperature sensor 310 Positive power source terminal is connected with one end of the 11st capacitor C11, first input end of the tie point as temperature collection circuit 110；First The negative power end of temperature sensor 310 is connected with the other end of the 11st capacitor C11, and tie point is as temperature collection circuit 110 The second input terminal；The output end of first temperature sensor 310, one end of the 12nd capacitor C12 and the 12nd inductance L12 One end is connected；The other end of 12nd capacitor C12 is grounded；The other end of 12nd inductance L12 is as temperature collection circuit 110 The first output end.

First collection terminal of the second temperature sensor 320 as temperature collection circuit 110；Second temperature sensor 320 Positive power source terminal is connected with one end of the 13rd capacitor C13, third input terminal of the tie point as temperature collection circuit 110；Second The negative power end of temperature sensor 320 is connected with the other end of the 13rd capacitor C13, and tie point is as temperature collection circuit 110 The 4th input terminal；The output end of second temperature sensor 320, one end of the 14th capacitor C14 and the 13rd inductance L13 One end is connected；The other end of 14th capacitor C14 is grounded；The other end of 13rd inductance L13 is as temperature collection circuit 110 Second output terminal.

The specific embodiment of above-mentioned temperature collection circuit is only as an example, be not limited in above-mentioned shape in practical application Formula depending on its application environment, can be realized the implementation of its corresponding function within the scope of protection of this application.

Remaining structure and principle are same as the previously described embodiments, no longer repeat one by one herein.

In another embodiment of the invention, a kind of embodiment of driving circuit 130, specific structure such as Fig. 7, packet are provided It includes: control circuit 410 and power supply circuit 420；

When control circuit 410 by its control terminal receive control signal RELAY_CTR when, control circuit 410 by itself Circuit conducting generates and exports power supply signal by its output end；When control circuit 410 is not received by control signal RELAY_ When CTR, control circuit 410 itself forms open circuit, does not generate power supply signal, therefore do not export power supply signal；Wherein, control electricity Control terminal of the control terminal on road as driving circuit 130.

When power supply circuit 420 receives power supply signal by its control terminal, by its first output end and it is second defeated Outlet exports supply voltage to the positive power source terminal of register and negative power end, is limiter so that register be made to work Cooling；Wherein, the first output end of the first output end of power supply circuit 420 and second output terminal respectively as driving circuit 130 And second output terminal.

Above structure can be realized using suitable circuit topology, be not specifically limited herein, can be realized above-mentioned each The function of a circuit, within the scope of protection of this application.

Optionally, the specific structure of a kind of way of realization of control circuit 410, comprising: the 15th capacitor C15, the 50th The control section of nine resistance R59, the 60th resistance R60, switching tube M and relay S1；Wherein:

One end of the grid of switching tube M, one end of the 59th resistance and the 15th capacitor C15 is connected；50th Control terminal of the other end of nine resistance R59 as driving circuit 130；The other end of 15th capacitor C15 is as with switching tube M's Source electrode is connected, tie point ground connection.

The drain electrode of switching tube M is connected by the 60th resistance R60 with the output end of the control section of relay S1；Relay The input terminal of the control section of S1 receives supply voltage VCC；Wherein, the control section of relay S1 is as control circuit 410 Output end.

Optionally, a kind of specific structure of way of realization of power supply circuit 420, comprising: the action part of relay S1；Its In:

Control terminal of the control terminal of the action part of relay S1 as power supply circuit 420；The action part of relay S1 First output end of first output end as power supply circuit 420, second output of the second output terminal as power supply circuit 420 End.

It should be noted that relay S1 can select high-current relay AQZ192, this relay can control 10A electricity The on-off of stream.

Specifically, when the other end of the 59th resistance R59 receives control signal RELAY_CTR, switching tube conducting, The circuit of the control section composition of 60th resistance R60 and relay S1 forms access, has electricity in the control section of relay S1 Stream flows through；So that the action part of relay S1 is provided by its first output end and its second output terminal for register Supply voltage.

The specific embodiment of above-mentioned driving circuit, can only as an example, be not limited in above-mentioned form in practical application Depending on its application environment, can be realized the implementation of its corresponding function within the scope of protection of this application.

Remaining structure and principle are same as the previously described embodiments, no longer repeat one by one herein.

In another embodiment of the invention, such as Fig. 8 a, on the basis of above-described embodiment and Fig. 1-Fig. 7, the temperature control Circuit further include: direct current transformation circuit 140.

Direct current transformation circuit 140 receives input voltage by its input terminal, and converts input voltage into temperature acquisition electricity Operating voltage needed for road 110, logical operation circuit 120 and driving circuit 130；Later, by its output end that work is electric Pressure is exported respectively to the power end of temperature collection circuit 110, the power end of logical operation circuit 120 and driving circuit 130 Power end.

Optionally, a kind of specific implementation of direct current transformation circuit 140, knot such as Fig. 8 b, comprising: chip U1, the tenth Six capacitor C16, the 17th capacitor C17, the 18th capacitor C18, the 19th capacitor C19, the electricity of the 14th inductance L14 and the 15th Feel L15；Wherein:

One end of the input pin of chip U1, one end of the 17th capacitor C17 and the 14th inductance L14 is connected；The The other end of 17 capacitor C17 is grounded；The other end of 14th inductance L14 is connected with one end of the 16th capacitor C16, tie point Input terminal as direct current transformation circuit 140；16th capacitor C16's；Other end ground connection.

The ground pin of chip U1 is grounded；The first output pin and the second output pin of chip U1 is connected, tie point, the tenth One end of five inductance L15 and one end of the 18th capacitor C18 are connected；The other end of 18th capacitor C18 is grounded；15th The inductance L15 other end is connected with one end of the 19th capacitor C19；Output end of the tie point as direct current transformation circuit 140；Tenth The other end of nine capacitor C19 is grounded.

It should be noted that chip U1 can choose LM1117MP-5 chip, this chip can turn the input voltage of 15V 5V operating voltage needed for being changed to temperature collection circuit 110, logical operation circuit 120 and driving circuit 130.

The specific embodiment of above-mentioned direct current transformation circuit is only as an example, be not limited in above-mentioned shape in practical application Formula depending on its application environment, can be realized the implementation of its corresponding function within the scope of protection of this application.

Remaining structure and principle are same as the previously described embodiments, no longer repeat one by one herein.

Another embodiment of the present invention also provides a kind of register, for the limiter heat dissipation for wind profile radar, tool Body structure such as Fig. 9, comprising: semiconductor chilling plate 510.

It should be noted that the one end for absorbing heat in semiconductor chilling plate 510 is cold end, one end of heat is distributed as heat End.

Therefore, the cold end of semiconductor chilling plate 510 is set to the side of limiter；The hot end of semiconductor chilling plate 510 to It radiates in environment.

Specifically, semiconductor chilling plate 510 passes through its positive power source terminal and negative electricity when limiter temperature is greater than target temperature Source receives supply voltage；After receiving supply voltage, the cold end of semiconductor chilling plate 510 is started using peltier effect Absorb the heat on limiter；Later, under the action of extra electric field, internal electron orients semiconductor chilling plate 510 It is mobile, within can form by a part of heat in its cold end, take its hot end to；Its hot end utilizes peltier effect again, The interior of electronics can be dispersed into environment in the form of heat, to make the reduction of limiter temperature.

Wherein, target temperature can be the temperature value previously according to actual conditions setting, is also possible to environment temperature and subtracts The difference of fiducial temperature；Wherein, fiducial temperature is more than or equal to zero, is not particularly limited herein, in the protection scope of the application It is interior.

Specifically, semiconductor chilling plate 510 can not receive power supply when limiter temperature is less than or equal to target temperature Voltage, so that semiconductor chilling plate 510 stops working, it is no longer limiter cooling.

The present invention is cooled down by semiconductor chilling plate when limiter temperature is greater than target temperature for limiter；Even if limit The fever of width device seriously will lead to its temperature and rise again, will be again by semiconductor as long as limiter temperature is greater than target temperature The work of cooling piece makes limiter cool down；And then the temperature limiting of limiter can be fluctuated near target temperature, it is ensured that Limiter fever can obtain effective temperature-reducing when serious.

Because of the maximum temperature in the case where supply voltage is constant, between the cold end of semiconductor chilling plate 510 and its hot end Difference is fixed, when the temperature difference between its cold end and its hot end reaches maximum temperature difference, in its hot end temperature-resistant premise Under, the temperature of cold end will not continue to reduce；If it is desired to continuing to reduce the temperature of its cold end, it is necessary to by reducing its hot end Temperature is realized.

Therefore another embodiment of the present invention additionally provides another register, such as Figure 10, in above-described embodiment and Fig. 9 On the basis of, further includes: heat dissipation equipment；And the specific structure of heat dissipation equipment such as Figure 10, comprising: thermal insulation board 520, fan 530 with And radiator 540.

Specifically, the side that the cooling fin that is set in radiator 540 of the hot end of semiconductor chilling plate 510 is vertical, and do not have There is the inlet and outlet for blocking radiator 540.

It should be noted that the hot end of semiconductor chilling plate 510 silica gel in a manner of glue connection with 540 phase of radiator Even.

Specifically, fan 530 is set to side opposite with semiconductor chilling plate 510 on radiator 540, and radiating It is provided on device 540 on the position of fan 530, is provided with a through-hole.

Wherein, by this through-hole, fan 530 can dry to radiator 540, accelerate the radiating rate of radiator；In addition, Fan is connected through a screw thread to be connected with radiator 540.

It should be noted that the shape of through-hole can be circular, it is also possible to rectangular, is not specifically limited herein, but In the protection scope of the present embodiment；It connect, can also lead to radiator 540 in addition, fan 530 can be connected through a screw thread It crosses riveting connection to connect with radiator 540, be not specifically limited herein, but in the protection scope of the present embodiment.

In addition, thermal insulation board 520 is set to side identical with the hot end of semiconductor chilling plate 510 on radiator 540, it is used for Fill up the vacancy not covered by semiconductor chilling plate 510 on limiter.

It should be noted that thermal insulation board 520 is connected in a manner of glue connection with radiator 540 silica gel.

Wherein, a kind of embodiment of radiator 540, specific structure are as shown in figure 11, comprising: radiator body 541, N number of cooling fin 542 and air duct cover board 543.

Specifically, N number of cooling fin 542 is vertically installed on radiator body 541 with uniform intervals, and with radiator master The baffle of body 541 is parallel；Wherein, N is the integer greater than 1.

It should be noted that two adjacent cooling fins 542 constitute a radiation tooth, N number of cooling fin constitutes N+1 heat dissipation Tooth；And radiator 540 needs that the heat of 541 insole board of radiator body is dispersed into ring by forming convection current on radiation tooth In border.

Specifically, air duct cover board 543 is set on cooling fin 542, and it is parallel to the bottom plate of radiator body 541.

It should be noted that since common air-cooled refrigeration is difficult to form convection current on radiation tooth, to increase convection current, so Air duct cover board 543 is set on cooling fin 542, forms closing air flue with cooling fin；It is equipped with the wind in air duct cover board 543 again Fan forms forced convertion, so that the heat of 541 insole board of radiator body be made to be dispersed into environment faster.

Further, it should be noted that air duct cover board can be connected through a screw thread to be connected with radiator body 541, can also To be connected by riveting connection with radiator body 541, it is not particularly limited herein, but be within the scope of the invention.

Optionally, the hot end of semiconductor chilling plate 510 is set to the outside of air duct cover board 543, alternatively, semiconductor chilling plate 510 hot end is set to the plate outer side of radiator body 541.

Remaining structure and principle are same as the previously described embodiments, no longer repeat one by one herein.

A kind of thermoregulating system, specific structure such as Figure 12, comprising: above-described embodiment are also provided in another embodiment of the present invention In temperature control circuit 10 and register 20；Wherein:

Register 20 is set to the side of limiter；The power end phase of the output end of temperature control circuit 10 and register 20 Even.

It should be noted that temperature control circuit can be set in the cabinet of wind profile radar, also can be set in limiter On, it is not specifically limited herein, but in the protection scope of the present embodiment.

Optionally, when register 20 includes heat dissipation equipment, temperature control circuit 10 may be disposed at the side of register 20, And it is adjacent with the fan 530 in limiter and heat dissipation equipment, and the inlet and outlet of the radiator 540 in heat dissipation equipment is not blocked.

The specific structure and working principle of temperature control circuit 10 and register 20 all can be found in above-described embodiment, herein no longer It repeats one by one.

A kind of temperature adjustment limiter is also provided in example in real another apply of the invention, specific structure such as Figure 13, comprising: limiter 30 and above-described embodiment in temperature control system 40；Wherein:

Temperature control system 40 is set to the side of limiter 30.

The specific structure and working principle of temperature control system 40 can be found in above-described embodiment, just no longer repeat one by one herein.

Wherein, a kind of embodiment of limiter 30, specific structure are as shown in figure 14, comprising: first order diode branch Road 610, second level diode branch 620, third level diode branch 630, input branch 640 and output branch 650.

Specifically, the first end of first order diode branch 610, the first end of second level diode branch 620 and The first end of three-level diode branch 630, the output end for inputting branch 640 and the input terminal for exporting branch 650 are connected；

Input input terminal of the input terminal of branch 640 as limiter 30；The output end of branch 650 is exported as limiter 30 output end；

Two pole of the second end of first order diode branch 610, the second end of second level diode branch 620 and the third level The second end of pipe branch 630 is connected, tie point ground connection；

Two pole of the third end of first order diode branch 610, the third end of second level diode branch 620 and the third level The third end of pipe branch 630 is connected, tie point ground connection.

It should be noted that second level diode branch 620 is at a distance from first diode branch 610, two pole of the second level Pipe branch 620 is 1/4 electromagnetic wavelength at a distance from third level diode branch 630.

In practical application, a kind of implementation of first order diode branch 610, such as Figure 14 is specifically included: the two or two pole Pipe D2, third diode D3, the 4th diode D4 and the 5th diode D5；Wherein:

The cathode of 5th diode D5, the anode of the second diode D2, the cathode of third diode D3 and the four or two pole The anode of pipe D4 is connected, first end of the tie point as first order diode branch；The anode and third of 5th diode D5 The anode of diode D3 is connected, second end of the tie point as first order diode branch；The cathode of second diode D2 and The cathode of four diode D4 is connected, third end of the tie point as first order diode branch.

It should be noted that the second diode D2, third diode D3, the 4th diode D4 and the 5th diode D5 are equal The high-power PIN diode of model MLP7122 is selected, for this diode operation between 100MHz to 200MHz, highest can be with The pulse power of 66dBm is born, and its maximum leakage power is 44dBm.

In practical application, a kind of implementation of second level diode branch 620, such as Figure 14 is specifically included: the six or two pole Pipe D6, the 7th diode D7 and the 16th inductance L16；Wherein:

One end of the cathode of 7th diode D7, the 6th diode D6 anode and the 16th inductance L16 is connected, connection First end of the point as second level diode branch 120；The anode of 7th diode D7 is as second level diode branch 120 Second end；The cathode of 6th diode D6 and the other end of the 16th inductance L16 are connected, and tie point is as second level diode branch The third end on road.

It should be noted that the 6th diode D6 and the 7th diode D7 select the small-power PIN of model MLP7130 Diode, for this diode operation between 100MHz to 200MHz, highest input power is 47dBm, exactly two pole of the first order Twice of diode maximum leakage power in pipe branch 110 can guarantee circuit although there are power redundancies for design in this way It is reliable and stable；In addition, the radio frequency capacitor that the 16th inductance L16 can select self-resonant frequency 1290MHz, inductance value is 10mH.

In practical application, a kind of implementation of third level diode branch 630, such as Figure 14 is specifically included: the eight or two pole Pipe D8 and the 9th diode D9；Wherein:

The cathode of 9th diode D9 and the anode of the 8th diode D8 are connected, and tie point is as third level diode branch 130 first end；Second end of the anode of 9th diode D9 as third level diode branch 130；8th diode D8's Third end of the cathode as third level diode branch 130.

It should be noted that the 8th diode D8 and the 9th diode D9 select model BAT1504WH6327XTSAI Schottky diode, this diode be suitable for 12GHz frequency within application, have ultra-low parasitic capacitor, extremely low list The characteristics such as item turn-on time.As forward current If=10mA, the maximum forward conducting voltage of this diode is 0.41v, corresponding Power is 5.26dBm.

In practical application, using the 20th capacitor C20 as input circuit, and the 21st capacitor C21 conduct is used Output circuit；Wherein, input terminal of the one end of the 20th capacitor C20 as input circuit 640, the other end is as input circuit 640 output end；Input terminal of the one end of 21st capacitor C21 as output circuit 650, the other end is as output circuit 650 output end.

It should be noted that in order to reduce loss, the self-resonant frequency of the 20th capacitor C20 and the 21st capacitor C21 It is consistent with the working frequency of limiter 30；Also, since the received input signal power of limiter 30 is high, so the 20th capacitor C20 will select high-voltage capacitance, and the capacitor of ATC company 600F series, capacitance 18pF can be selected；In addition, the 21st capacitor C21 The radio frequency capacitor of the 18pF of self-resonant frequency 1290MHz can be selected.

Specifically, since the intrinsic layer thickness of the diode in second level diode branch 620 is than first order diode branch The intrinsic layer thickness of diode in road 610 is thin, fast to high power signals corresponding speed, so when limiter 30 passes through input terminal When receiving powerful input signal, the 6th diode D6 is connected at first, forms Low ESR to input signal energy after conducting Short circuit.

Further, input signal is transferred at the third end of first order diode branch 610 after 1/4 electromagnetic wavelength, First order diode branch 610 is equivalent to high frequency open circuit at this time；In turn, the energy of input signal focuses primarily upon two pole of the first order At the third end of pipe branch 610, to make the second diode D2 and the 4th diode D4 fast conducting and enter clipping state.

Further, after the clipping of first order diode branch 610 and second level diode branch 620, input letter It number is down within 19dBm；Later, by third level diode branch 630, by input signal hoop position, and pass through the 21st electricity Hold C21, after direct current signal is filtered, 10dBm is lower than by the final signal that 30 output end of limiter exports.

In addition, the specific structure of limiter 30 can also be as shown in figure 15 when the power of input signal is relatively low, packet It includes: first diode D1, the first inductance L1, first capacitor C1 and the second capacitor C2；Wherein:

The anode of first diode D1, one end of the first inductance L1, one end of first capacitor C1 and the second capacitor C2 One end is connected；Input terminal of the other end of first capacitor C1 as limiter 30；The other end of second capacitor C2 is as clipping The output end of device 30；The cathode of first diode D1 is connected with the other end of the first inductance L1, tie point ground connection.

It should be noted that first diode D1 selects the small-power PIN diode of model MLP7130；First capacitor C1 With the second capacitor C2 for hindering direct current signal to pass through；In addition, the first inductance L1 is used to provide DC channel, alternatively referred to as high frequency Choke coil.

Specifically, first diode D1 shows as high impedance, the insertion damage of entire circuit when input signal is small signal Lose very little；When amplitude gate of the input signal greater than first diode D1 is prescribed a time limit, the impedance of first diode D1 is reduced, and causes entire The impedance mismatching of circuit so that input signal flows into the earth from first diode D1, and then reaches Limiting effect.

Remaining structure and principle are same as the previously described embodiments, no longer repeat one by one herein.

In being applied to, the specific structure such as Figure 16 a and Figure 16 b of temperature adjustment limiter (are not drawn into semiconductor system in figure Cold 510 and thermal insulation board 520), wherein；

Can be observed with the visual angle of Figure 16 a: fan 530 is set to before radiator 540；Temperature control circuit 10 is set to scattered The upper side of hot device 540.

Wherein, the left side and right side of radiator 540 are inlet and outlet.

It can clearly be observed with the visual angle of Figure 16 b: after the hot end of semiconductor chilling plate 510 is set to radiator 540 Face；Also, the cold end of semiconductor chilling plate 510 is set to the maximum side of 30 top surface area of limiter.

It should be noted that the cold end of semiconductor chilling plate 510 is set to the maximum side of 30 top surface area of limiter, It can guarantee that the cold end of semiconductor chilling plate 510 is completely covered on limiter, therefore semiconductor chilling plate 510 can be improved and be The ability of limiter cooling.

In addition, thermal insulation board 520 is set to side identical with the hot end of semiconductor chilling plate 510 on radiator 540, it is used for Fill up the vacancy not covered by the semiconductor chilling plate on limiter 30.

Preferably, the specific structure of the temperature adjustment limiter such as Figure 17 a and Figure 17 b, on the basis of Figure 16 a and Figure 16 b, Further include: Switching Power Supply 50, T/R switch 60, low noise power supply 70 and low-noise amplifier 80；Wherein:

Can clearly be observed with the visual angle of Figure 17 a: Switching Power Supply 50 is set to before radiator 540, and with Fan 530 is arranged side by side.

It can clearly be observed with the visual angle of Figure 17 b: T/R switch 60, low noise power supply 70 and low-noise amplifier 80 It is all set in behind radiator 540, with 30 random alignment of limiter.

Wherein, the connection relationship of Switching Power Supply 50, T/R switch 60, low noise power supply 70 and low-noise amplifier 80 and its Respective function is the same as those in the prior art, and is no longer repeated one by one herein.

The foregoing description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, as defined herein General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, of the invention It is not intended to be limited to the embodiments shown herein, and is to fit to and the principles and novel features disclosed herein phase one The widest scope of cause.

Claims (19)

1. a kind of temperature control circuit, which is characterized in that be applied in wind profile radar, set on the limiter in the wind profile radar It is equipped with register；The temperature control circuit includes: temperature collection circuit, logical operation circuit and driving circuit；Wherein:

The temperature collection circuit is for acquiring and according to the environment temperature build environment temperature signal of the wind profile radar, together When, it acquires and limiter temperature signal is generated according to limiter temperature；

The logical operation circuit be used to carry out the limiter temperature signal and the ambient temperature signal logical operation and Compare, and when comparison result is that the limiter temperature is greater than target temperature, outputs control signals to the driving circuit；

The driving circuit is used for when receiving the control signal, and the register is driven to work, and is the limiter Cooling.

2. temperature control circuit according to claim 1, which is characterized in that the target temperature is equal to the environment temperature and subtracts The difference of fiducial temperature；The fiducial temperature is more than or equal to zero.

3. temperature control circuit according to claim 2, which is characterized in that the logical operation circuit, comprising: the first partial pressure electricity Road, first voltage follow circuit, the first subtraction circuit, second voltage to follow circuit and the first comparison circuit；Wherein:

First bleeder circuit generates default partial pressure for receiving and according to supply voltage；

The first voltage follows circuit for generating preset difference value according to the default partial pressure；The preset difference value for institute State the corresponding voltage signal of fiducial temperature；

The first subtraction circuit on the basis of ambient temperature signal received for subtracting the institute received Preset difference value is stated, generate and exports target temperature signal to first comparison circuit；

The second voltage follows circuit for generate and defeated with a times amplification to the limiter temperature signal received Limiter follows temperature signal to first comparison circuit out；

First comparison circuit is used to export institute when the limiter follows temperature signal to be greater than the target temperature signal Control signal is stated to the driving circuit.

4. temperature control circuit according to claim 2, which is characterized in that the logical operation circuit, comprising: the second partial pressure electricity Road, tertiary voltage follow circuit, the first adder operation circuit, the 4th voltage follower circuit and the second comparison circuit；Wherein:

Second bleeder circuit generates default partial pressure for receiving and according to supply voltage；

The tertiary voltage follows circuit for generating and exporting preset difference value to first addition according to the predeterminated voltage Computing circuit；The preset difference value is voltage signal corresponding with the fiducial temperature；

First adder operation circuit is used on the basis of the limiter temperature signal received plus described default Difference, generates and output chopper inversion temperature signal is to the 4th voltage follower circuit；

4th voltage follower circuit is used to carry out the limiter inversion temperature signal to generate with a times amplification and export limit Width device follows temperature signal to second comparison circuit；

Second comparison circuit is used to follow temperature signal to be greater than the ambient temperature signal received when the limiter When, the control signal is exported to the driving circuit.

5. temperature control circuit according to claim 2, which is characterized in that the logical operation circuit, comprising: third partial pressure electricity Road, the 5th voltage follower circuit, the second subtraction circuit, third subtraction circuit and the first hysteresis comparison circuit；Its In:

The third bleeder circuit generates default partial pressure for receiving and according to supply voltage；

5th voltage follower circuit is used to generate according to the predeterminated voltage and export preset difference value to second subtraction Computing circuit；The preset difference value is voltage signal corresponding with the fiducial temperature；

The second subtraction circuit on the basis of ambient temperature signal received for subtracting the default difference Value, generates and exports target temperature signal to the third subtraction circuit；

The third subtraction circuit on the basis of target temperature signal for subtracting the limiter received Temperature signal generates and exports the first comparison signal to the first hysteresis comparison circuit；

The first hysteresis comparison circuit is used for when first comparison signal is less than zero, exports the control signal to described Driving circuit.

6. temperature control circuit according to claim 2, which is characterized in that the logical operation circuit, comprising: the 4th partial pressure electricity Road, the 6th voltage follower circuit, the second adder operation circuit, the 4th subtraction circuit and the second hysteresis comparison circuit；Its In:

4th bleeder circuit generates default partial pressure for receiving and according to supply voltage；

6th voltage follower circuit is used to generate according to the predeterminated voltage and export preset difference value to second addition Computing circuit；The preset difference value is voltage signal corresponding with the fiducial temperature；

Second adder operation circuit is used on the basis of the limiter temperature signal received plus described default Difference, generates and output chopper inversion temperature signal is to the 4th subtraction circuit；

The 4th subtraction circuit is for subtracting the limiter on the basis of ambient temperature signal received Inversion temperature signal generates and exports the second comparison signal；

The second hysteresis comparison circuit is used for when second comparison signal is less than zero, then exports the control signal to institute State driving circuit.

7. temperature control circuit according to claim 1-6, which is characterized in that the temperature collection circuit, comprising: the One temperature sensor, second temperature sensor, the first transfer circuit and the second transfer circuit；Wherein:

First temperature sensor generates the ambient temperature signal for acquisition and according to the environment temperature, and will be described Ambient temperature signal is exported by first transfer circuit to the logical operation circuit；

The second temperature sensor generates the limiter temperature signal for acquisition and according to the limiter temperature, and will The limiter signal is exported by second transfer circuit to the logical operation circuit.

8. temperature control circuit according to claim 1-6, which is characterized in that the driving circuit, comprising: control electricity Road and power supply circuit；Wherein:

The control circuit is used for when receiving the control signal, itself circuit is connected, and export power supply signal to institute State power supply circuit；

The power supply circuit is used for when receiving the power supply signal, provides supply voltage for the register, is made described Register work, cools down for the limiter.

9. temperature control circuit according to claim 1-6, which is characterized in that further include: direct current transformation circuit；Its In:

The direct current transformation circuit is used to the input voltage received being converted to the temperature collection circuit, the logical operation Operating voltage needed for circuit and the driving circuit, and export.

10. a kind of register, which is characterized in that for radiating for the limiter in wind profile radar, the register packet It includes: semiconductor chilling plate；Wherein:

The cold end of the semiconductor chilling plate is set to the side of the limiter；

The semiconductor chilling plate is used to receive supply voltage when limiter temperature is greater than target temperature；Also, works as and receive It when the supply voltage, starts to work, cools down for the limiter.

11. register according to claim 10, which is characterized in that further include: heat dissipation equipment；The heat dissipation equipment packet It includes: thermal insulation board, fan and radiator；Wherein:

The hot end of the semiconductor chilling plate is set to side vertical with the cooling fin in the radiator on the radiator, And do not block the inlet and outlet of the radiator；

The fan is set to side opposite with the semiconductor chilling plate on the radiator；

The thermal insulation board is set to side identical with the hot end of the semiconductor chilling plate on the radiator, for filling up State the vacancy not covered by the semiconductor chilling plate on limiter.

12. register according to claim 11, which is characterized in that the radiator, comprising: radiator body, N number of Cooling fin and air duct cover board；Wherein:

N number of cooling fin is vertically installed on the radiator body with uniform intervals, and with the radiator body Baffle is parallel；N is the integer greater than 1；

The air duct cover board is set on the cooling fin, and is parallel to the bottom plate of the radiator body.

13. register according to claim 12, which is characterized in that the hot end of the semiconductor chilling plate is set to institute The outside of air duct cover board is stated, alternatively, the hot end of the semiconductor chilling plate is set to the plate outer side of the radiator body.

14. a kind of temperature control system, which is characterized in that applied to the limiter in wind profile radar, comprising: such as claim 1-9 Any temperature control circuit and the register as described in claim 10-13 is any；Wherein:

The register is set to the side of the limiter；

The output end of the temperature control circuit is connected with the power end of the register.

15. temperature control system according to claim 14, which is characterized in that when the register includes heat dissipation equipment, The temperature control circuit is set to the side of the register, and with the fan phase in the limiter and the heat dissipation equipment Neighbour, and the inlet and outlet of the radiator in the heat dissipation equipment is not blocked.

16. a kind of temperature adjustment limiter characterized by comprising limiter, the temperature control system as described in claims 14 or 15； Wherein:

The temperature control system is set to the side of the limiter.

17. temperature adjustment limiter according to claim 16, which is characterized in that the limiter, comprising: first order diode Branch, second level diode branch, third level diode branch, input branch and output branch；Wherein:

The first end of the first order diode branch, the first end of the second level diode branch, two pole of the third level The input terminal of the first end of pipe branch, the output end of the input branch and the output branch is connected；

Input terminal of the input terminal of the input branch as the limiter；The output end of the output branch is as the limit The output end of width device；

The second end of the first order diode branch, the second end of the second level diode branch and the third level two The second end of pole pipe branch is connected, tie point ground connection；

The third end of the first order diode branch, the third end of the second level diode branch and the third level two The third end of pole pipe branch is connected, tie point ground connection.

18. temperature adjustment limiter according to claim 16, which is characterized in that the limiter, comprising: first capacitor, Two capacitors, first diode and the first inductance；Wherein:

Input terminal of the one end of the first capacitor as the limiter；One end of second capacitor is as the limiter Output end；

The other end of the first capacitor, the first diode anode be connected, one end of first inductance and described The other end of second capacitor is connected；

The other end of the first diode is connected with the other end of first inductance, tie point ground connection.

19. the described in any item temperature adjustment limiters of 6-18 according to claim 1, which is characterized in that further include: Switching Power Supply, TR Switch, low noise power supply and low-noise amplifier；Wherein:

When the register in the temperature control system includes heat dissipation equipment, the Switching Power Supply is set in the heat dissipation equipment Radiator on side identical with the fan in the heat dissipation equipment；The T/R switch, the low noise power supply and described Low-noise amplifier is all set in side identical with limiter on the radiator.