CN106354046A - Control method and device of intelligent power module - Google Patents
Control method and device of intelligent power module Download PDFInfo
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- CN106354046A CN106354046A CN201611019280.6A CN201611019280A CN106354046A CN 106354046 A CN106354046 A CN 106354046A CN 201611019280 A CN201611019280 A CN 201611019280A CN 106354046 A CN106354046 A CN 106354046A
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- temperature
- spm
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H5/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection
- H02H5/04—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection responsive to abnormal temperature
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- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Inverter Devices (AREA)
Abstract
The invention discloses a control method and a control device of an intelligent power module. The control method comprises the following steps: obtaining the temperature of an intelligent power module at current moment; determining the temperature change trend of the intelligent power module according to the temperature at current moment and the temperature at previous moment; regulating the temperature of the intelligent power module according to the temperature change trend; and controlling the connection and disconnection of the intelligent power module according to the temperature of the intelligent power module. The temperature is regulated in real time according to the temperature change trend of the intelligent power module, so as to control the connection or disconnection of the intelligent power module, and automatic disconnection of the intelligent power module at excessively high temperature is prevented. The problem of repeated start and shutdown of the intelligent power module is solved, and the operation stability of the intelligent power module is improved.
Description
Technical field
The present embodiments relate to the control method of control application, more particularly, to SPM and device.
Background technology
SPM (intelligent power modules, ipm) is a kind of new power switching device,
In the application of frequency conversion motor widely.SPM is device for power switching insulated gate bipolar transistor
(insulated gate bipolar transistor, igbt), drive circuit, protection circuit, built-in critesistor and temperature
Degree sensor integration together, has the advantages that high pressure resistant, high input impedance, high switching frequency, low-power, and intelligent power
Inside modules are also equipped with under-voltage, overcurrent and the failure detector circuit such as overheated, and detection signal can be delivered to processor and carry out
Process, improve the reliability of system.When there is under-voltage, excessively stream, overheated and short-circuit arbitrary fault in SPM, therefore
In barrier output signal duration, SPM can block gate-drive, after the persistent period terminates, SPM
Inside automatically resets, gate-drive channel opener.SPM can repeat the process of automatic protection, perseveration.
Existing SPM control method is mainly by built-in critesistor direct detection temperature, works as temperature
When rising to overheated threshold value (typically 110 DEG C), directly force SPM to quit work, when temperature be down to overheated extensive
Restart during complex value.The program is easily caused SPM repeated switching, SPM also easily many
Secondary work near overheated threshold value, affect device lifetime.Fig. 1 a is existing SPM control method motor
Flow chart during load, Fig. 1 b is control effect figure during existing SPM control method motor load, bent
Line 110b represents motor speed.It can be seen that SPM repeated switching leads to powered motor load
It is unable to stable operation.
Content of the invention
In view of this, the present invention proposes a kind of control method of SPM and device, according to SPM
Temperature changing trend adjust its real time temperature, it is to avoid SPM switchs in running repeatedly, improves intelligence
Operational module is to the response speed of temperature and operating stability.
In a first aspect, the embodiment of the present invention proposes a kind of control method of SPM, described control method bag
Include: obtain the temperature of SPM current time；Temperature according to described current time and the temperature in a upper moment, determine
The temperature changing trend of described SPM；According to described temperature changing trend, adjust the temperature of described SPM
Degree；According to the temperature of described SPM, to control conducting and the disconnection of described SPM.
Further, according to described temperature changing trend, the temperature adjusting described SPM includes: if described
The temperature of SPM is more than preset temperature first threshold, if the variation tendency of described temperature is to rise simultaneously, drops
The temperature of low described intelligent object；If the temperature of described SPM is more than described preset temperature first threshold, simultaneously
If the variation tendency of described temperature is to decline, keep the temperature-resistant of described intelligent object.
Further, the described temperature according to described SPM, to control the conducting of described SPM
Include with disconnecting: if the temperature of described SPM is more than preset temperature Second Threshold, described SPM
Disconnect；If the temperature of described SPM is less than or equal to described preset temperature Second Threshold, described intelligent power
Module turns on.
Further, described preset temperature first threshold is less than described preset temperature Second Threshold.
Further, the temperature of described SPM is adjusted by the power of regulating load, wherein, described intelligence
The temperature of power model and the power positive correlation of described load.
Second aspect, the embodiment of the present invention proposes a kind of control device of SPM, described control device bag
Include: acquiring unit, for obtaining the temperature of SPM current time；Determining unit, is connected with described acquiring unit, uses
In the temperature of the temperature according to described current time and a upper moment, determined the temperature changing trend of described SPM；
Adjustment unit, is connected with described determining unit, for according to described temperature changing trend, adjusting the temperature of described SPM
Degree；Control unit, is connected with described adjustment unit, for the temperature according to described SPM, to control described intelligence
The conducting of power model and disconnection.
Further, described determining unit specifically for: if the temperature of described SPM be more than preset temperature
First threshold, if the variation tendency of described temperature is to rise simultaneously, reduces the temperature of described intelligent object；If described intelligence
The temperature of energy power model is more than described preset temperature first threshold, if the variation tendency of described temperature is to decline simultaneously,
Keep the temperature-resistant of described intelligent object.
Further, described control unit specifically for: if the temperature of described SPM be more than preset temperature
Second Threshold, then described SPM disconnection；If the temperature of described SPM is less than or equal to described default
Temperature Second Threshold, then described SPM conducting.
Further, described preset temperature first threshold is less than described preset temperature Second Threshold.
Further, the temperature of described SPM is adjusted by the power of regulating load, wherein, described intelligence
The temperature of power model and the power positive correlation of described load.
In the embodiment of the present invention, the temperature according to SPM current time and the temperature in a upper moment, judge intelligence
The temperature changing trend of energy power model, and controlled according to the temperature of this temperature changing trend real-time regulation SPM
The conducting of SPM and disconnection.Because the temperature changing trend of SPM is a slowly varying process,
Even if the ruuning situation of load is not changed in, the temperature of SPM is it is also possible that rising or declining, the present embodiment
Using temperature changing trend, SPM is controlled, corresponds to and according only to temperature, SPM is controlled
The mode of system, can avoid intelligent work module repeatedly to switch because temperature is too high in the course of the work, increased intelligent power
Module is to the response speed of temperature with the stability run.
Brief description
By reading the detailed description that non-limiting example is made made with reference to the following drawings, other of the present invention
Feature, objects and advantages will become more apparent upon:
Fig. 1 a is flow chart during a kind of SPM motor load in prior art；
Fig. 1 b is design sketch during a kind of SPM motor load in prior art；
Fig. 2 is the flow chart that one of embodiment of the present invention one is used for SPM control method；
Fig. 3 is the flow chart that one of embodiment of the present invention two is used for SPM control method；
Fig. 4 is the flow chart that one of embodiment of the present invention three is used for SPM control method；
Fig. 5 a is the flow chart during load of one of embodiment of the present invention SPM motor；
Fig. 5 b is the design sketch during load of one of embodiment of the present invention SPM motor；
Fig. 6 is the structure chart that one of embodiment of the present invention four is used for SPM control device.
Specific embodiment
The present invention is described in further detail with reference to the accompanying drawings and examples.It is understood that this place is retouched
The specific embodiment stated is used only for explaining the present invention, rather than limitation of the invention.Also, it should be noted for the ease of retouching
State, in accompanying drawing, illustrate only part related to the present invention rather than full content.It also should be noted that, for the ease of saying
Bright, show example related to the present invention in following examples, these examples are only used as the principle of the embodiment of the present invention is described
Used, it is not intended as the restriction to the embodiment of the present invention, meanwhile, the concrete numerical value of these examples can be according to different applied environments
Different with the parameter of device or assembly and different.
The control method of the SPM of the embodiment of the present invention and device can run on that to be provided with windows (micro-
The operating system platform of soft company exploitation), the android (behaviour for Portable movable smart machine of Google's exploitation
Make system platform), the ios operating system platform for Portable movable smart machine of exploitation (Apple), windows
The terminal of the operating systems such as phone (operating system platform for Portable movable smart machine of Microsoft's exploitation)
In, this terminal can be desktop computer, notebook computer, mobile phone, palm PC, panel computer, digital camera, digital vedio recording
Any one in machine etc..
Embodiment one
Fig. 2 is the flow chart of the control method of one of the embodiment of the present invention one SPM, and the method is used for
The temperature of real-time regulation SPM, it is to avoid SPM switchs repeatedly because temperature is too high, improves intelligent work(
The operating stability of rate module.The method can be executed by having SPM regulatory function device, and this device can
To be realized by software and/or hardware mode, such as typically subscriber terminal equipment, such as mobile phone, computer etc..In the present embodiment
The control method of SPM include: step s210, step s220, step s230 and step s240.
Step s210, obtains the temperature of SPM current time.
Specifically, SPM is a kind of new power switching device, increases on the basis of traditional drive circuit
Add ancillary equipment, device for power switching insulated gate bipolar transistor, drive circuit, protection circuit, built-in temperature have been passed
Sensor integrates, and is mainly used to driving load work.Temperature sensor refers to experience temperature and be converted into available output
The sensor of signal.Optionally, temperature sensor can be critesistor, and the typical feature of thermal resistor is quick to temperature
Sense, shows different resistance values at a temperature of difference.Semistor resistance value when temperature is higher is bigger, bears
Temperature coefficient thermistor resistance value when temperature is higher is lower, and they belong to semiconductor device.Obtained by temperature sensor
Take the temperature of SPM current time, be designated as tn.
Step s220, the temperature in the temperature according to described current time and a upper moment, determine described SPM
Temperature changing trend.
Specifically, measure the temperature in a moment on SPM, be designated as tn-1, according to temperature t of current timen, order
Temperature variation is δ t, wherein, δ t=tn-tn-1.If δ is t=tn-tn-1≤ 0, then the temperature change of SPM become
Gesture is downward trend, if δ is t=tn-tn-1> 0, then the temperature changing trend of SPM is ascendant trend.
Step s230, according to described temperature changing trend, adjusts the temperature of described SPM.
Specifically, when the temperature changing trend of SPM is ascendant trend, reduce the temperature of SPM
Degree, when the temperature changing trend of SPM is downward trend, keeps the temperature of SPM current time to continue
Reforwarding row.
Step s240, according to the temperature of described SPM, to control described SPM leads through and off
Open.
Specifically, in order to prevent SPM from damaging because temperature is too high, in SPM, it is provided with guarantor
Protection circuit, the effect of protection circuit is temperature according to SPM to be controlled its conducting and to disconnect.When temperature is too high,
Disconnect SPM to play a protective role.
Optionally, the temperature of described SPM is adjusted by the power of regulating load, wherein, described intelligent work(
The temperature of rate module and the power positive correlation of described load.
Specifically, SPM is connected with load, runs for driving load, when load running power increases,
Electric current in the system of SPM and load composition increases, and the temperature of SPM raises；When load running work(
When rate reduces, the electric current of the system of SPM and load composition reduces, and the temperature of SPM reduces
In the embodiment of the present invention, the temperature according to SPM current time and the temperature in a upper moment, judge intelligence
The temperature changing trend of energy power model, and controlled according to the temperature of this temperature changing trend real-time regulation SPM
The conducting of SPM and disconnection.Because the temperature changing trend of SPM is a slowly varying process,
Even if the ruuning situation of load is not changed in, the temperature of SPM is it is also possible that rising or declining, the present embodiment
Using temperature changing trend, SPM is controlled, corresponds to and according only to temperature, SPM is controlled
The mode of system, can avoid intelligent work module repeatedly to switch because temperature is too high in the course of the work, increased intelligent power
Module is to the response speed of temperature with the stability run.
Embodiment two
Fig. 3 is the flow chart of the control method of one of the embodiment of the present invention two SPM, and the present embodiment exists
On the basis of embodiment one, further illustrate step s230, wherein, according to described temperature changing trend, adjust described intelligence
The temperature of power model includes: if the temperature of described SPM is more than preset temperature first threshold, if institute simultaneously
The variation tendency stating temperature is to rise, then reduce the temperature of described intelligent object；If the temperature of described SPM is big
In described preset temperature first threshold, if the variation tendency of described temperature is to decline simultaneously, keep described intelligent object
Temperature-resistant.Specifically, the control method of the SPM in the present embodiment includes: step s310, step s320, step
S330 and step s340.
Step s310, obtains the temperature of SPM current time.
Step s320, the temperature in the temperature according to described current time and a upper moment, determine described SPM
Temperature changing trend.
Step s330, if the temperature of described SPM is more than preset temperature first threshold, if simultaneously described
The variation tendency of temperature is to rise, then reduce the temperature of described intelligent object；If the temperature of described SPM is more than
Described preset temperature first threshold, if the variation tendency of described temperature is to decline simultaneously, keeps the temperature of described intelligent object
Degree is constant.
Specifically, in the running of SPM, temperature can gradually rise, when the temperature of SPM
During more than preset temperature first threshold, judge the variation tendency of temperature simultaneously, when the variation tendency of temperature is to rise, i.e. δ t
=tn-tn-1> 0, reduce the temperature of described SPM, optionally, reduce intelligent power by reducing the power loading
The temperature of module.When the temperature of SPM is more than preset temperature first threshold, judge the variation tendency of temperature simultaneously
During for declining, i.e. δ t=tn-tn-1≤ 0, keep the temperature-resistant of SPM, optionally, order load maintains former power
Continue to run with.
Step s340, according to the temperature of described SPM, to control described SPM leads through and off
Open.
In the embodiment of the present invention, the real time temperature according to SPM and the comparison of preset first temperature threshold value are tied
Really, the temperature changing trend of combined with intelligent power model, the temperature of real-time regulation SPM.Limit intelligent power mould
Deblocking temperature persistently raises, it is to avoid temperature is too high to lead to SPM to quit work.
Embodiment three
Fig. 4 is the flow chart of the control method of one of the embodiment of the present invention three SPM, and the present embodiment exists
On the basis of embodiment one, further illustrate step s240, wherein, if the temperature of described SPM is more than preset
Temperature Second Threshold, then described SPM disconnection；If the temperature of described SPM is less than or equal to described
Preset temperature Second Threshold, then described SPM conducting.Specifically, the control of the SPM in the present embodiment
Method includes: step s410, step s420, step s430 and step s440.
Step s410, obtains the temperature of SPM current time.
Step s420, the temperature in the temperature according to described current time and a upper moment, determine described SPM
Temperature changing trend.
Step s430, according to described temperature changing trend, adjusts the temperature of described SPM.
Step s440, if the temperature of described SPM is more than preset temperature Second Threshold, described intelligent work(
Rate module disconnects；If the temperature of described SPM is less than or equal to described preset temperature Second Threshold, described intelligence
Can power model conducting.
Specifically, run with SPM, its temperature can persistently raise, when the temperature of SPM is more than
During preset temperature Second Threshold, SPM is controlled to disconnect.Second is systemic presupposition for temperature threshold, and intelligent power mould
The characteristic of the hardware built-up circuit of block is related, and second temperature threshold value is the stagnation temperature between SPM conducting and disconnection
Degree.Optionally, realized by the protection circuit in SPM；When the temperature of SPM is less than or equal in advance
It is set to more than Second Threshold, then control SPM conducting to continue to run with.
Optionally, described preset temperature first threshold is less than described preset temperature Second Threshold.
In the embodiment of the present invention, by the real time temperature of SPM is compared with preset temperature Second Threshold
Relatively, conducting and the disconnection of SPM are controlled.Achieve the protection to SPM, prevent temperature too high and burn
Ruin.
Exemplary, in order that the statement of scheme is more readily understood, for the control method of intelligent control module, to load it is
Illustrate as a example motor.Fig. 5 a is the flow process during load of one of embodiment of the present invention SPM motor
Figure；Fig. 5 b is the design sketch during load of one of embodiment of the present invention SPM motor.Specifically, intelligent work(
Rate module drive motor rotates, and SPM arranges temperature overheating threshold value and overheated shutdown value, wherein, overheated threshold value
Less than overheated shutdown value.Set motor rotating speed of target first, the temperature of detection SPM, if temperature was less than hot topic
Limit value, then continue loading motor rotating speed, when temperature is more than overheated threshold value, keeps motor speed to continue to run with, now intelligence
The temperature of power model keeps constant.Judge the temperature changing trend of SPM, if temperature changing trend is simultaneously
Decline, then keep the temperature-resistant of SPM, that is, motor is run with current rotating speed.When the variation tendency of temperature is upper
Rise, then make motor run with minimum speed target frequency reducing, the variation tendency of detection temperature simultaneously, if now the change of temperature becomes
Gesture is to decline, then make SPM keep Current Temperatures, that is, motor is run with current rotating speed；If the now change of temperature
The rising of trend, when temperature reaches overheated shutdown value, then SPM disconnects, and quits work, and intelligent power drives
Load also quits work.Curve 510b is the rotating speed of target of SPM motor, and curve 520b is intelligent power mould
The actual speed of block motor, can be seen that the motor energy of SPM driving by curve 510b and curve 520b
Stable operation at short notice, because the embodiment of the present invention by adjusting the temperature of SPM to the judgement of temperature trend
Degree, corresponds to mode SPM being controlled according only to temperature, can avoid intelligent work module in work
During due to the too high switch repeatedly of temperature it is achieved that function to SPM protection, and then SPM control
The motor of system also will not switch repeatedly, and can enter steady operational status in the short time.
Example IV
Fig. 6 is the structure chart of one of embodiment of the present invention four SPM control device.This device is applied to
The control method for SPM providing in the execution embodiment of the present invention one to three, this device specifically includes: obtains
Unit 610, determining unit 620, adjustment unit 630 and control unit 640.
Acquiring unit 610, for obtaining the temperature of SPM current time；
Determining unit 620, is connected with acquiring unit 610, for the temperature according to described current time and a upper moment
Temperature, determines the temperature changing trend of described SPM；
Adjustment unit 630, is connected with determining unit 620, for according to described temperature changing trend, adjusting described intelligent work(
The temperature of rate module；
Control unit 640, is connected with adjustment unit 630, for the temperature according to described SPM, to control institute
State conducting and the disconnection of SPM.
Further, determining unit 620 specifically for: if the temperature of described SPM is more than preset temperature the
One threshold value, if the variation tendency of described temperature is to rise simultaneously, reduces the temperature of described intelligent object；If described intelligence
The temperature of power model is more than described preset temperature first threshold, if the variation tendency of described temperature is to decline simultaneously, protects
Hold the temperature-resistant of described intelligent object.
Further, control unit 640 specifically for: if the temperature of described SPM is more than preset temperature the
Two threshold values, then described SPM disconnection；If the temperature of described SPM is less than or equal to described default temperature
Degree Second Threshold, then described SPM conducting.
Further, described preset temperature first threshold is less than described preset temperature Second Threshold.
Further, the temperature of described SPM is adjusted by the power of regulating load, wherein, described intelligence
The temperature of power model and the power positive correlation of described load.
In the embodiment of the present invention, the temperature according to SPM current time and the temperature in a upper moment, judge intelligence
The temperature changing trend of energy power model, and controlled according to the temperature of this temperature changing trend real-time regulation SPM
The conducting of SPM and disconnection.Because the temperature changing trend of SPM is a slowly varying process,
Even if the ruuning situation of load is not changed in, the temperature of SPM is it is also possible that rising or declining, the present embodiment
Using temperature changing trend, SPM is controlled, corresponds to and according only to temperature, SPM is controlled
The mode of system, can avoid intelligent work module repeatedly to switch because temperature is too high in the course of the work, increased intelligent power
Module is to the response speed of temperature with the stability run.
Obviously, it will be understood by those skilled in the art that the said goods can perform the side that any embodiment of the present invention is provided
Method, possesses the corresponding functional module of execution method and beneficial effect.
Note, above are only presently preferred embodiments of the present invention and institute's application technology principle.It will be appreciated by those skilled in the art that
The invention is not restricted to specific embodiment described here, can carry out for a person skilled in the art various obvious changes,
Readjust and substitute without departing from protection scope of the present invention.Therefore although being carried out to the present invention by above example
It is described in further detail, but the present invention is not limited only to above example, without departing from the inventive concept, also
Other Equivalent embodiments more can be included, and the scope of the present invention is determined by scope of the appended claims.
Claims (10)
1. a kind of control method of SPM is it is characterised in that include:
Obtain the temperature of SPM current time；
Temperature according to described current time and the temperature in a upper moment, determine that the temperature change of described SPM becomes
Gesture；
According to described temperature changing trend, adjust the temperature of described SPM；
According to the temperature of described SPM, to control conducting and the disconnection of described SPM.
2. the control method of SPM according to claim 1 is it is characterised in that become according to described temperature change
Gesture, the temperature adjusting described SPM includes:
If the temperature of described SPM is more than preset temperature first threshold, if the variation tendency of described temperature simultaneously
For rising, then reduce the temperature of described intelligent object；
If the temperature of described SPM is more than described preset temperature first threshold, if the change of described temperature simultaneously
Trend is to decline, then keep the temperature-resistant of described intelligent object.
3. SPM according to claim 2 control method it is characterised in that described according to described intelligent work(
The temperature of rate module, to control the conducting of described SPM to include with disconnecting:
If the temperature of described SPM is more than preset temperature Second Threshold, described SPM disconnects；
If the temperature of described SPM is less than or equal to described preset temperature Second Threshold, described intelligent power mould
Block turns on.
4. the control method of SPM according to claim 3 is it is characterised in that described preset temperature first threshold
Value is less than described preset temperature Second Threshold.
5. the control method of the SPM according to any one of Claims 1-4 is it is characterised in that pass through to adjust
The temperature to adjust described SPM for the power of load, wherein, the temperature of described SPM and described load
Power positive correlation.
6. a kind of control device of SPM is it is characterised in that include:
Acquiring unit, for obtaining the temperature of SPM current time；
Determining unit, is connected with described acquiring unit, for the temperature of the temperature according to described current time and a upper moment, really
The temperature changing trend of fixed described SPM；
Adjustment unit, is connected with described determining unit, for according to described temperature changing trend, adjusting described SPM
Temperature；
Control unit, is connected with described adjustment unit, for the temperature according to described SPM, to control described intelligence
The conducting of power model and disconnection.
7. the control device of SPM according to claim 6 is it is characterised in that described determining unit is specifically used
In:
If the temperature of described SPM is more than preset temperature first threshold, if the variation tendency of described temperature simultaneously
For rising, then reduce the temperature of described intelligent object；
If the temperature of described SPM is more than described preset temperature first threshold, if the change of described temperature simultaneously
Trend is to decline, then keep the temperature-resistant of described intelligent object.
8. the control device of SPM according to claim 7 is it is characterised in that described control unit is specifically used
In:
If the temperature of described SPM is more than preset temperature Second Threshold, described SPM disconnects；
If the temperature of described SPM is less than or equal to described preset temperature Second Threshold, described intelligent power mould
Block turns on.
9. the control device of SPM according to claim 8 is it is characterised in that described preset temperature first threshold
Value is less than described preset temperature Second Threshold.
10. the control device of the SPM according to any one of claim 6 to 9 is it is characterised in that pass through to adjust
The temperature to adjust described SPM for the power of load, wherein, the temperature of described SPM and described load
Power positive correlation.
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| CN106647233A (en) * | 2017-02-06 | 2017-05-10 | 上海斐讯数据通信技术有限公司 | Method and system for realizing automatic early warning and protection of low temperature of smart watch |
| CN107807693A (en) * | 2017-12-01 | 2018-03-16 | 普联技术有限公司 | Temprature control method, device and the computer-readable recording medium of radio-frequency module |
| CN108445928A (en) * | 2018-04-23 | 2018-08-24 | 海信（山东）空调有限公司 | A kind of temperature-control circuit and frequency-variable controller of IPM |
| CN108631567A (en) * | 2017-03-24 | 2018-10-09 | 中兴通讯股份有限公司 | A kind of method that realizing circuit protection and protection circuit |
| CN110213794A (en) * | 2019-05-08 | 2019-09-06 | 普联技术有限公司 | A kind of temperature control method, device, terminal device and storage medium |
| CN116388111A (en) * | 2023-04-18 | 2023-07-04 | 杭州欣美成套电器制造有限公司 | In-situ measurement and control protection integrated device of electric micro-grid |
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