Utility model content
The utility model for a long time in large current work state, is prone to fault for the driver in existing AWG temperature control equipment, then affects the problem of AWG temperature control equipment reliability, and a kind of highly reliable wavelength-division array optical waveguide temperature control equipment is provided.This control device effectively improves the reliability of AWG driving circuit, and before there are serious problems, sends alarm, thereby can improve DWDM optical transmission system reliability.
In order to achieve the above object, the utility model adopts following technical scheme:
Highly reliable wavelength-division array optical waveguide temperature control equipment, described control device adopts two heat driven devices, and two heat driven devices adopt two working methods of Hot Spare that drive to carry out the temperature control of AWG chip.
In the preferred embodiment of such scheme, described control device comprises well heater, hygrosensor, temperature deviation amplifier, feedback pusher and two heat driven devices, described well heater and hygrosensor and AWG chip are equipped with, input end and the hygrosensor of described temperature deviation amplifier join, its output terminal joins with the input end of feedback pusher, the output terminal of described feedback pusher drives simultaneously and connects two heat driven devices, and the output of described two heat driven devices is control linkage well heater simultaneously.
Further, the output feedback link of described two heat driven devices feedback pusher.
In another preferred embodiment, described control device comprises well heater, hygrosensor, temperature deviation amplifier, two feedback pushers and two heat driven devices, described well heater and hygrosensor and AWG chip are equipped with, input end and the hygrosensor of described temperature deviation amplifier join, its output terminal joins with the input end of two feedback pushers respectively, the output terminal of described two feedback pushers drives respectively and connects two heat driven devices, the output of described two heat driven devices is control linkage well heater simultaneously, simultaneously feedback link two feedback pushers.
In another preferred embodiment, described control device comprises well heater, hygrosensor, temperature deviation amplifier, temperature deviation and voltage stabilizing feedback mixer amplifier, two temperature control driving amplifiers and two heat driven devices, described well heater and hygrosensor and AWG chip are equipped with, input end and the hygrosensor of described temperature deviation amplifier join, the input end of its output terminal and temperature deviation and voltage stabilizing feedback mixer amplifier joins, the output terminal of temperature deviation and voltage stabilizing feedback mixer amplifier joins with two temperature control driving amplifiers respectively, the output terminal of two temperature control driving amplifiers drives respectively and connects two heat driven devices, the output of described two heat driven devices is control linkage well heater simultaneously, mixer amplifier is fed back in feedback link temperature deviation and voltage stabilizing simultaneously.
In another preferred embodiment, described control device comprises well heater, hygrosensor, temperature deviation amplifier, feedback pusher, two heat driven devices, two protective switch of the short circuit and status monitoring and controller, described well heater and hygrosensor and AWG chip are equipped with, input end and the hygrosensor of described temperature deviation amplifier join, its output terminal joins with the input end of feedback pusher, the output terminal of feedback pusher drives respectively and connects two heat driven devices, the output terminal of two heat driven devices is respectively by two protective switch of the short circuit while control linkage well heaters, the output of two protective switch of the short circuit is feedback link feedback pusher simultaneously, described status monitoring is connected respectively two heat driven devices and temperature deviation amplifier with controller, and two protective switch of the short circuit of control linkage.
In another preferred embodiment, described control device comprises well heater, hygrosensor, temperature deviation amplifier, feedback pusher, two heat driven devices, two protective switch of the short circuit and status monitoring and controller, described well heater and hygrosensor and AWG chip are equipped with, input end and the hygrosensor of described temperature deviation amplifier join, its output terminal joins with the input end of feedback pusher, the output terminal of feedback pusher drives respectively and connects two heat driven devices, the output terminal of two heat driven devices is respectively by two protective switch of the short circuit while control linkage well heaters, the output of two protective switch of the short circuit is feedback link feedback pusher simultaneously, described status monitoring is connected respectively two heat driven devices with controller and feeds back the output terminal of pusher, and two protective switch of the short circuit of control linkage.
In another preferred embodiment, described control device comprises well heater, hygrosensor, temperature deviation amplifier, two heat driven devices, two protective switch of the short circuit, status monitoring and controller, temperature deviation and voltage stabilizing feedback mixer amplifier, two temperature control driving amplifiers and power supply, described well heater and hygrosensor and AWG chip are equipped with, input end and the hygrosensor of described temperature deviation amplifier join, the input end of its output terminal and temperature deviation and voltage stabilizing feedback mixer amplifier joins, temperature deviation is connected respectively two temperature control driving amplifiers with the output terminal of voltage stabilizing feedback mixer amplifier, the output terminal of described two temperature control driving amplifiers is two heat driven devices of control linkage respectively, the output terminal of two heat driven devices is control linkage well heater simultaneously, and feedback link temperature deviation and voltage stabilizing feedback mixer amplifier, power supply connects respectively two heat driven devices by two protective switch of the short circuit, described status monitoring is connected temperature deviation and voltage stabilizing feedback mixer amplifier and two heat driven devices with controller monitoring, and drives two protective switch of the short circuit of control.
In another preferred embodiment, described control device comprises well heater, hygrosensor, temperature deviation amplifier, feedback pusher, two heat driven devices, two protective switch of the short circuit, status monitoring and controller and microprocessor, wherein, well heater and hygrosensor and AWG chip are equipped with, the output terminal of hygrosensor joins with the input end of temperature deviation amplifier and the input end of microprocessor respectively, the output terminal of temperature deviation amplifier joins with the input end of feedback pusher, the output terminal of feedback pusher connects respectively two heat driven devices, the output terminal of two heat driven devices connects respectively two protective switch of the short circuit, the output terminal of two protective switch of the short circuit drives connection well heater simultaneously, and feedback link feedback pusher, status monitoring is connected the output terminal of feedback pusher and two heat driven devices with monitoring control devices, and two protective switch of the short circuit of control linkage, the output terminal of the monitoring of microprocessor connection status and controller, and control linkage temperature deviation amplifier.
In another preferred embodiment, described control device comprises well heater, hygrosensor, temperature deviation amplifier, feedback pusher, two heat driven devices, two protective switch of the short circuit, status monitoring and controller, microprocessor and power supply, wherein, well heater and hygrosensor and AWG chip are equipped with, the output terminal of hygrosensor joins with the input end of temperature deviation amplifier and the input end of microprocessor respectively, the output terminal of temperature deviation amplifier joins with the input end of feedback pusher, the output terminal of feedback pusher connects respectively two heat driven devices, the output terminal of two heat driven devices is control linkage well heater simultaneously, and feedback link feedback pusher, power supply connects respectively two heat driven devices by two protective switch of the short circuit, status monitoring is connected the output terminal of temperature deviation amplifier and two heat driven devices with monitoring control devices, and two protective switch of the short circuit of control linkage, the output terminal of the monitoring of microprocessor connection status and controller, and control linkage temperature deviation amplifier.
The highly reliable wavelength-division array optical waveguide temperature control equipment that the utility model provides adopts two heat driven devices, greatly improved the reliability of temperature control circuit, what add employing is two working methods that drive Hot Spare, so do not protect the problems such as switching time, and as long as a driver goes wrong, equipment just can send alarm in the situation that temperature control continues normal operation, so that maintainer changes the AWG module that has occurred problem in due course, the reliability of equipment is carried out to early warning, it not only can improve the reliability of AWG temperature control circuit, to improving the global reliability of dwdm system, also there is larger help.
Embodiment
For technological means, creation characteristic that the utility model is realized, reach object and effect is easy to understand, below in conjunction with concrete diagram, further set forth the utility model.
Waveguide array (AWG) temperature control equipment is mainly heated AWG chip by well heater, and carry out temperature detection by hygrosensor, by temperature deviation amplifier, carry out the amplification of working temperature deviation, then send and drive pusher to drive well heater work to promote heat driven device, make AWG chip all the time in steady-working state.Wherein, heat driven device general work is in pulse width modulated or pulse-frequency modulation state, to improve driving work efficiency.
The utility model has adopted two heat driven devices, and adopts two working methods of Hot Spare that drive to carry out the temperature control of AWG.Under normal circumstances, two drivers are worked simultaneously, once and there is blocking-up type fault in some drivers, another driver is born all driver outputs automatically, and sends alarm; If not being blocking-up type, damages driver, but short circuit type damage, observation circuit sends to controller by this information automatically, is blocked the output of this driver by driver control switch, allows another driver bear all driver outputs.
Based on scheme of the present utility model, its specific embodiments is as follows:
Embodiment 1:
Referring to Fig. 1, it is depicted as two schematic diagram that drive protection heating temperature control circuit.As seen from the figure, the wavelength-division array optical waveguide temperature control equipment in this example mainly comprises well heater 2, hygrosensor 3, temperature deviation amplifier 4, feedback pusher 5 and two heat driven devices 6.Wherein well heater 2 and hygrosensor 3 are equipped with AWG chip 1 to be controlled, the input end of temperature deviation amplifier 4 and hygrosensor 3 join, its output terminal joins with the input end of feedback pusher 5, the output terminal of feedback pusher 5 drives the output while control linkage well heater 2 that connects 6, two heat driven devices 6 of two heat driven devices simultaneously.
During this device operation, hygrosensor 3 is surveyed the working temperature of AWG chip 1, send temperature deviation amplifier 4, temperature error signal after amplification send feedback pusher 5, it exports two groups of signal mode and intensity of meeting the requirement of heat driven device, promote respectively two identical heat driven device 6 co-operation, drive 2 pairs of AWG chips 1 of well heater to heat.
This device can be realized two defencive functions that drive, and realizes the blocking-up type fault that certain heat driven device of protection stops driver output.
Embodiment 2:
Referring to Fig. 2, its be is for having the protection heating temperature control circuit of voltage stabilizing feedback.As seen from the figure, the wavelength-division array optical waveguide temperature control equipment in this example mainly comprises well heater 2, hygrosensor 3, temperature deviation amplifier 4, feedback pusher 5 and two heat driven devices 6.Wherein well heater 2 and hygrosensor 3 are equipped with AWG chip 1 to be controlled, the input end of temperature deviation amplifier 4 and hygrosensor 3 join, its output terminal joins with the input end of feedback pusher 5, the output terminal of feedback pusher 5 drives the output while control linkage well heater 2 that connects 6, two heat driven devices 6 of two heat driven devices simultaneously; The output feedback link of two heat driven devices 6 feeds back pusher 5 simultaneously.
During this device operation, hygrosensor 3 is surveyed the working temperature of AWG chip 1, send temperature deviation amplifier 4, temperature error signal after amplification send feedback pusher 5, it exports two groups of signal mode and intensity of meeting the requirement of heat driven device, and promote two identical heat driven devices 6 and jointly export, this output drives 2 pairs of AWG chips 1 of control heater to heat, and also feeds back to feedback pusher 5 simultaneously and feeds back promotion.
The present embodiment is on the basis of embodiment 1, to have increased by two heat driven devices 6 jointly to export to the LOCAL FEEDBACK of feeding back pusher 5, and it can improve the stability of output signal and the signal capture scope that temperature deviation is controlled, to improve the reliability of system.
Embodiment 3:
Referring to Fig. 3, it is depicted as has the protection heating temperature control circuit diagram that two feedbacks promote.As seen from the figure, the wavelength-division array optical waveguide temperature control equipment in this example mainly comprises well heater 2, hygrosensor 3, temperature deviation amplifier 4, two feedback pushers 5 and two heat driven devices 6.Wherein, well heater 2 and hygrosensor 3 are equipped with AWG chip, the input end of temperature deviation amplifier 4 and hygrosensor 3 join, its output terminal joins with the input end of two feedback pushers 5 respectively, the output terminal of two feedback pushers 5 drives respectively and connects two heat driven devices 6, the output of two heat driven devices 6 is control linkage well heater 2 simultaneously, and feedback link two feeds back pushers 5 simultaneously.
When this device moves, hygrosensor 3 is surveyed the working temperature of AWG chip 1, send temperature deviation amplifier 4, temperature error signal after amplification is given two feedback pushers 5 simultaneously, it exports two groups of signal mode and intensity of meeting the requirement of heat driven device, and promote separately two heat driven devices 6 and jointly export, this output drives 2 pairs of AWG chips 1 of control heater to heat, and also feeds back to two feedback pushers 5 and feeds back promotion simultaneously.
This programme, except providing the protection of heat driven device, also can be protected the fault of feedback pusher.
Embodiment 4:
Referring to Fig. 4, it is depicted as the two protection heating temperature control circuit diagrams that promote that adopt feedback mixer.As seen from the figure, the wavelength-division array optical waveguide temperature control equipment in this example mainly comprises well heater 2, hygrosensor 3, temperature deviation amplifier 4, temperature deviation and voltage stabilizing feedback mixer amplifier 9, two temperature control driving amplifiers 10 and two heat driven devices 6.Wherein, well heater 2 and hygrosensor 3 are equipped with AWG chip 1, the input end of temperature deviation amplifier 4 and hygrosensor 3 join, the input end of its output terminal and temperature deviation and voltage stabilizing feedback mixer amplifier 9 joins, the output terminal of temperature deviation and voltage stabilizing feedback mixer amplifier 9 joins with two temperature control driving amplifiers 10 respectively, the output terminal of two temperature control driving amplifiers 10 drives respectively and connects two heat driven devices 6, the output of two heat driven devices 6 is control linkage well heater 2 simultaneously, and while feedback link temperature deviation and voltage stabilizing feedback mixer amplifier 9.
During this device operation, hygrosensor 3 is surveyed the working temperature of AWG chip 1, send temperature deviation amplifier 4, temperature error signal after amplification send temperature deviation and voltage stabilizing feedback Hybrid amplifier 9, two temperature control driving amplifiers 10 are given respectively in its output, two temperature control driving amplifiers 10 promote separately two heat driven devices 6 and jointly export, and this output is heated 2 pairs of AWG chips 1 of well heater, and the while also feeds back to temperature deviation and voltage stabilizing feedback Hybrid amplifier 9 feeds back amplification.
This scheme can further improve the stable and reliability of device operation, such as driver 6 itself does not all have to meet the signal mode of driver requirement and the circuit and signal of intensity with temperature deviation and voltage stabilizing feedback Hybrid amplifier 9, this circuit arrangement can produce corresponding signal mode and intensity promotes driver.
Embodiment 5:
Referring to Fig. 5, it is depicted as the short-circuit protection driving circuit schematic diagram that adopts overheated monitoring.As seen from the figure, the wavelength-division array optical waveguide temperature control equipment in this example mainly comprises well heater 2, hygrosensor 3, temperature deviation amplifier 4, feedback pusher 5, two heat driven devices 6, two protective switch of the short circuit 7 and status monitoring and controllers 8.Wherein, well heater 2 and hygrosensor 3 are equipped with AWG chip 1, the input end of temperature deviation amplifier 4 and hygrosensor 3 join, its output terminal joins with the input end of feedback pusher 5, the output terminal of feedback pusher 5 drives respectively and connects two heat driven devices 6, the output terminal of two heat driven devices is respectively by the output while feedback link feedback pusher 5 of 2, two protective switch of the short circuit 7 of two protective switch of the short circuit, 7 while control linkage well heaters; Status monitoring monitors respectively with controller 8 output terminal and the temperature deviation amplifier 4 that is connected two heat driven devices 6, and two protective switch of the short circuit 7 of control linkage.
During this device operation, hygrosensor 3 is surveyed the working temperature of AWG chip 1, send temperature deviation amplifier 4, temperature error signal after amplification send respectively feedback pusher 5 and status monitoring and controller 8, the output of feedback pusher 5 promotes respectively two heat driven devices 6, the output of two heat driven devices 6 send respectively status monitoring and controller 8 to carry out working state monitoring and protective switch of the short circuit 7 carries out short-circuit protection, status monitoring and controller 8 are monitored respectively duty and the temperature error signal of two heat driven devices 6, overheated to judge whether to occur, to control the break-make of two protective switch of the short circuit 7, two output signals through protective switch of the short circuit 7 drive 2 pairs of AWG chips 1 of well heater to heat jointly, also feed back to feedback pusher 5 and feed back promotion simultaneously.
In this device; the duty of status monitoring and controller 8 monitor temperature deviation signals and two heat driven devices 6; if discovery temperature overheating; and certain heat driven device 6 is in continuous heating driving condition; judge that short trouble has appearred in this heat driven device 6; status monitoring and controller 8 turn-off with regard to the protective switch of the short circuit 7 of this heat driven device 6 of control and management, to forbid that this heat driven device 6 carries out continuous heating driving.
Embodiment 6:
Referring to Fig. 6, it is depicted as the short-circuit protection driving circuit of monitoring driving signal.As seen from the figure, the wavelength-division array optical waveguide temperature control equipment in this example mainly comprises well heater 2, hygrosensor 3, temperature deviation amplifier 4, feedback pusher 5, two heat driven devices 6, two protective switch of the short circuit 7 and status monitoring and controllers 8.Wherein, well heater 2 and hygrosensor 3 are equipped with AWG chip 1, the input end of temperature deviation amplifier 4 and hygrosensor 3 join, its output terminal joins with the input end of feedback pusher 5, the output terminal of feedback pusher 5 drives respectively and connects two heat driven devices 6, the output terminal of two heat driven devices 6 is respectively by the output while feedback link feedback pusher 5 of 2, two protective switch of the short circuit 7 of two protective switch of the short circuit, 7 while control linkage well heaters; Meanwhile, status monitoring is connected respectively the output terminal of two heat driven devices 6 and feeds back pusher 5 with controller 8, and two protective switch of the short circuit 7 of control linkage.
This device, when operation, obtains temperature overheating signal in feedback pusher 5.Hygrosensor 3 is surveyed the working temperature of AWG chip 1, send temperature deviation amplifier 4, temperature error signal after amplification send feedback pusher 5, its output promotes two identical heat driven device 6 co-operation, and send status monitoring and controller 8 carry out temperature overheating and promote status monitoring, the output of two heat driven devices 6 send respectively status monitoring and controller 8 to drive working state monitoring and protective switch of the short circuit 7 to carry out short-circuit protection, the break-make of two protective switch of the short circuit 7 is controlled in the output of status monitoring and controller 8, two output signals through protective switch of the short circuit 7 drive 2 pairs of AWG chips 1 of well heater to heat jointly, also feed back to feedback pusher 5 and feed back promotion simultaneously.
Embodiment 7:
Referring to Fig. 7, it is depicted as has the Drive Protecting Circuit schematic diagram that two heating promote.As seen from the figure, wavelength-division array optical waveguide temperature control equipment in this example mainly comprises well heater 2, hygrosensor 3, temperature deviation amplifier 4, two heat driven devices 6, two protective switch of the short circuit 7, status monitoring and controller 8, temperature deviation and voltage stabilizing feedback mixer amplifier 9, two temperature control driving amplifiers 10 and power supply 11, wherein, well heater 2 and hygrosensor 3 are equipped with AWG chip 1, the input end of temperature deviation amplifier 4 and hygrosensor 3 join, the input end of its output terminal and temperature deviation and voltage stabilizing feedback mixer amplifier 9 joins, temperature deviation is connected respectively two temperature control driving amplifiers 10 with the output terminal of voltage stabilizing feedback mixer amplifier 9, the output terminal of two temperature control driving amplifiers 10 is two heat driven devices 6 of control linkage respectively, the output terminal of two heat driven devices 6 is control linkage well heater 2 simultaneously, and feedback link temperature deviation and voltage stabilizing feedback mixer amplifier 9, power supply 11 connects respectively two heat driven devices 6 by two protective switch of the short circuit 7, and status monitoring is connected temperature deviation and voltage stabilizing feedback mixer amplifier 9 and two heat driven devices 6 with controller 8 monitoring, and drive two protective switch of the short circuit 7 of control.
During this device operation, hygrosensor 3 is surveyed the working temperature of AWG chip 1, send temperature deviation amplifier 4, temperature error signal after amplification send temperature deviation and voltage stabilizing feedback mixer amplifier 9, two temperature control driving amplifiers 10 and status monitoring and controller 8 are given respectively in its output, two temperature control driving amplifier 10 outputs promote two identical heat driven device 6 co-operation, power supply 11 gives respectively two heat driven devices 6 power supplies through two protective switch of the short circuit 7, the output of two heat driven devices 6 send respectively status monitoring and controller 8 to carry out working state monitoring, the break-make of two protective switch of the short circuit 7 is controlled in the output of status monitoring and controller 8, the output signal of two heat driven devices 6 drives 2 pairs of AWG chips 1 of well heater to heat jointly, while also feeds back to temperature deviation and voltage stabilizing feedback mixer amplifier 9 feeds back promotion.
In this example, by status monitoring and 8 pairs of heat driven devices 6 of controller, realize overheating protection; the device that this example provides is when operation; if status monitoring and controller 8 are finding that there is temperature overheating; and certain heat driven device 6 is when continuous heating driving condition; not the output of turn-offing relevant heat driven device 6; but the power supply of power cutoff to this heat driven device 6, thereby realize the protection to the short trouble of heat driven device 6.
Embodiment 8:
Referring to Fig. 8, it is depicted as the Drive Protecting Circuit schematic diagram that adopts microprocessor management.As seen from the figure, wavelength-division array optical waveguide temperature control equipment in this example mainly comprises well heater 2, hygrosensor 3, temperature deviation amplifier 4, feedback pusher 5, two heat driven devices 6, two protective switch of the short circuit 7, status monitoring and controller 8 and microprocessor 12, wherein, well heater 2 and hygrosensor 3 are equipped with AWG chip 1, the output terminal of hygrosensor 3 joins with the input end of temperature deviation amplifier 4 and the input end of microprocessor 12 respectively, the output terminal of temperature deviation amplifier 4 joins with the input end of feedback pusher 5, the output terminal of feedback pusher 5 connects respectively two heat driven devices 6, the output terminal of two heat driven devices 6 connects respectively two protective switch of the short circuit 7, the output terminal of two protective switch of the short circuit 7 drives simultaneously and connects well heater 2, and feedback link feedback pusher 5, status monitoring is connected the output terminal of feedback pusher 5 and two heat driven devices 6 with controller 8 monitorings, and two protective switch of the short circuit 7 of control linkage, the output terminal of microprocessor 12 connection status monitorings and controller 8, and control linkage temperature deviation amplifier 4.
During this device operation, hygrosensor 3 is surveyed the working temperature of AWG chip 1, send microprocessor 12 and temperature deviation amplifier 4, temperature error signal after amplification send feedback pusher 5, its output promotes two identical heat driven device 6 co-operation, and send status monitoring and controller 8 carry out temperature overheating and promote status monitoring, the output of two heat driven devices 6 send respectively status monitoring and controller 8 to carry out working state monitoring and protective switch of the short circuit 7 carries out short-circuit protection, the break-make of two protective switch of the short circuit 7 is controlled in the output of status monitoring and controller 8, and send microprocessor 12 by the correlation behavior signal of holding circuit, two output signals through two protective switch of the short circuit 7 drive 2 pairs of AWG chips 1 of well heater to heat jointly, also feed back to feedback pusher 5 and feed back promotion simultaneously, the output of microprocessor 12 send temperature deviation amplifier 4 to carry out temperature controlled adjustment.
In the device that this example provides, microprocessor is mainly used for the duty of checkout equipment, and communicates with host computer, to report duty, or the parameters of change attemperating unit.The particularly adjustment of Temperature Setting parameter.
Embodiment 9:
Referring to Fig. 9, it is depicted as the power remove type Drive Protecting Circuit schematic diagram that adopts microprocessor management.As seen from the figure, wavelength-division array optical waveguide temperature control equipment in this example mainly comprises well heater 2, hygrosensor 3, temperature deviation amplifier 4, feedback pusher 5, two heat driven devices 6, two protective switch of the short circuit 7, status monitoring and controller 8 and microprocessor 12, wherein, well heater 2 and hygrosensor 3 are equipped with AWG chip 1, the output terminal of hygrosensor 3 joins with the input end of temperature deviation amplifier 4 and the input end of microprocessor 12 respectively, the output terminal of temperature deviation amplifier 4 joins with the input end of feedback pusher 5, the output terminal of feedback pusher 5 connects respectively two heat driven devices 6, the output terminal of two heat driven devices 6 is control linkage well heater 2 simultaneously, and feedback link feedback pusher 5, power supply 12 connects respectively two heat driven devices 6 by two protective switch of the short circuit 7, status monitoring is connected the output terminal of temperature deviation amplifier 4 and two heat driven devices 6 with controller 8 monitorings, and two protective switch of the short circuit 7 of control linkage, the output terminal of microprocessor 12 connection status monitorings and controller 8, and control linkage temperature deviation amplifier 4.
During this device operation, hygrosensor 3 is surveyed the working temperature of AWG chip 1, send microprocessor 12 and temperature deviation amplifier 4, temperature error signal after amplification send feedback pusher 5, its output promotes two identical heat driven device 6 co-operation, and send status monitoring and controller 8 to carry out temperature overheating monitoring, the output signal of two heat driven devices 6 send respectively status monitoring and controller 8 to carry out working state monitoring and protective switch of the short circuit 7 carries out short-circuit protection, and jointly drive 2 pairs of AWG chips 1 of well heater to heat, also feed back to feedback pusher 5 and feed back promotion simultaneously, two protective switch of the short circuit 7 are controlled in the output of status monitoring and controller 8, to control the power supply of 12 pairs of two heat driven devices 6 of power supply, and send microprocessor 12 by the correlation behavior signal of holding circuit, the output of microprocessor 12 send temperature deviation amplifier 4 to carry out temperature controlled adjustment.
Microprocessor is for detection of the duty of equipment, and communicates with host computer, to report duty, or changes the parameters of attemperating unit.The particularly adjustment of Temperature Setting parameter.
More than show and described ultimate principle of the present utility model, principal character and advantage of the present utility model.The technician of the industry should understand; the utility model is not restricted to the described embodiments; that in above-described embodiment and instructions, describes just illustrates principle of the present utility model; do not departing under the prerequisite of the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall within the scope of claimed the utility model.The claimed scope of the utility model is defined by appending claims and equivalent thereof.