CN106502299B - A kind of temperature control voltage adjusting circuit - Google Patents
A kind of temperature control voltage adjusting circuit Download PDFInfo
- Publication number
- CN106502299B CN106502299B CN201611183858.1A CN201611183858A CN106502299B CN 106502299 B CN106502299 B CN 106502299B CN 201611183858 A CN201611183858 A CN 201611183858A CN 106502299 B CN106502299 B CN 106502299B
- Authority
- CN
- China
- Prior art keywords
- voltage
- circuit
- temperature
- input
- output
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05F—SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
- G05F1/00—Automatic systems in which deviations of an electric quantity from one or more predetermined values are detected at the output of the system and fed back to a device within the system to restore the detected quantity to its predetermined value or values, i.e. retroactive systems
- G05F1/10—Regulating voltage or current
- G05F1/46—Regulating voltage or current wherein the variable actually regulated by the final control device is dc
- G05F1/56—Regulating voltage or current wherein the variable actually regulated by the final control device is dc using semiconductor devices in series with the load as final control devices
- G05F1/561—Voltage to current converters
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Automation & Control Theory (AREA)
- Continuous-Control Power Sources That Use Transistors (AREA)
- Control Of Temperature (AREA)
Abstract
Temperature control voltage adjusting circuit provided by the invention, including the first temperature measurement circuit, second temperature measurement circuit, first analog comparator, analog switching circuit, instrument discharge circuit, second analog comparator and high pressure discharge circuit, it is different according to the measurement temperature of the first temperature measurement circuit and the second temperature measurement circuit, caused voltage is different, so as to pass through the first analog comparator and analog switching circuit, voltage difference input instrument discharge circuit caused by the temperature difference is amplified, by the voltage after amplification compared with the reference voltage of the second analog comparator, when difference is more than reference voltage, then so that high pressure discharge circuit works, voltage after output amplification, for adjusting temperature equipment so that the first temperature and second temperature reach unanimity.Temperature control voltage adjusting circuit in the program, circuit design is simple, and the ripple of output voltage is small, and circuit has all reached good effect in terms of stability, precision and sensitivity, improves reliability and stability.
Description
Technical field
The present invention relates to control technology field, and in particular to a kind of temperature control voltage adjusting circuit.
Background technology
Now with the development of control technology, widely used in increasing field.Temperature control circuit is also a kind of common
Circuit, for being controlled according to temperature, the Power Regulation in temperature control circuit, exactly adjust heating power, its essence is adjust it is defeated
Go out voltage, so as to realize the accurate control to temperature.
Existing temperature control voltage adjusting technology, it is all based on FPGA (Field-Programmable Gate Array, i.e. scene
Programmable gate array) or general processor CPU (Central Processing Unit).Increased in hardware aspect by periphery
Add temperature sensor to realize the collection of temperature data, thermal resistance is heated by nickel wire to adjust output voltage.In software aspects
By detecting the resistance of thermal resistance come control voltage amplitude.Higher using the temperature control system power dissipation ratio of this kind of technology, ripple compares
Greatly, cause poor in terms of the stability of a system.Such system cost cost is also higher simultaneously.Therefore, at some to system
Under the scene of higher, the strict limitation system power dissipation expense of stability requirement, just become impractical with.It is for example, right for some
Temperature is than more sensitive fine measuring instrument, and above-mentioned temperature control voltage adjusting technology is because stability is poor, power consumption is difficult then to be applicable greatly.
The content of the invention
Therefore, the technical problem to be solved in the present invention is that temperature control circuit stability of the prior art is poor, power consumption is big.
Therefore, the present invention provides a kind of temperature control voltage adjusting circuit, including：First temperature measurement circuit, for measuring the first space
First temperature, first voltage is exported according to it；Second temperature measurement circuit, it is defeated according to its for measuring the second temperature of second space
Go out second voltage；First analog comparator, two input inputs first voltage and second voltage respectively, by comparing
State first voltage and second voltage its output end the first control signal of output；Analog switching circuit, its control terminal input described the
One control signal, two input input the first voltage and second voltage respectively, and two output end is according to described
One control signal exports the first differential voltage and the second differential voltage respectively；Instrument discharge circuit, its first input end input institute
The first differential voltage is stated, its second input inputs second differential voltage, its output end output meter amplification voltage；Second
Analog comparator, its input export the second control signal after inputting instrument the amplification voltage, with reference voltage；It is high
Discharge circuit is pressed, its input inputs the instrument amplification voltage, and its control terminal inputs second control signal, output end root
Power output adjusts voltage after the instrument is amplified into voltage amplification according to second control signal.
Preferably, in addition to first voltage follows circuit, and the first voltage of the first temperature measurement circuit output is through described the
First analog comparator is inputted after the processing of one voltage follower circuit.
Preferably, in addition to second voltage follows circuit, and the second voltage of the second temperature measurement circuit output is through described the
Second analog comparator is inputted after the processing of two voltage follower circuits.
Preferably, in addition to tertiary voltage follows circuit, and the instrument of the instrument discharge circuit output amplifies voltage through institute
State after tertiary voltage follows processing of circuit and input the high pressure discharge circuit.
Preferably, in the analog switching circuit, when first voltage is more than second voltage, the first control signal control
First differential voltage is first voltage, and second differential voltage is second voltage；When the first voltage is less than second voltage,
It is second voltage that first control signal, which controls the first differential voltage, and second differential voltage is first voltage.
Preferably, the difference, the first differential voltage and the second differential voltage of first temperature and the second temperature
Difference, linearly increase or reduce.
Preferably, the reference voltage is 1V-2V.
Preferably, the multiple of the high pressure discharge circuit amplification is 7-10 times.
Preferably, the power adjustment control source temperature equipment, for entering to the temperature in the first space or second space
Row regulation so that the first temperature and second temperature reach unanimity.
Preferably, first analog comparator and second analog comparator are arranged on a comparator chip
In.
Technical solution of the present invention, have the following advantages that：
Temperature control voltage adjusting circuit provided by the invention, including the first temperature measurement circuit, the second temperature measurement circuit, first simulation it is more electric
Road, analog switching circuit, instrument discharge circuit, the second analog comparator and high pressure discharge circuit, according to the first temperature measurement circuit
Different with the measurement temperature of the second temperature measurement circuit, caused voltage is different, so as to be opened by the first analog comparator and simulation
Powered-down road, voltage difference input instrument discharge circuit caused by the temperature difference is amplified, by the voltage after amplification and the second simulation ratio
Reference voltage compared with circuit is compared, and when difference is more than reference voltage, then causes the work of high pressure discharge circuit, after output amplification
Voltage, for adjusting temperature equipment so that the first temperature and second temperature reach unanimity.Temperature control voltage adjusting circuit in the program, electricity
Road design is simple, and the ripple of output voltage is small, and circuit has all reached good effect in terms of stability, precision and sensitivity
Fruit, improve reliability and stability.
Brief description of the drawings
, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical scheme of the prior art
The required accompanying drawing used is briefly described in embodiment or description of the prior art, it should be apparent that, in describing below
Accompanying drawing is some embodiments of the present invention, for those of ordinary skill in the art, before creative work is not paid
Put, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is the circuit structure diagram of a specific example of temperature control regulating circuit in the embodiment of the present invention；
Fig. 2 is the circuit structure diagram of another instantiation of the temperature control voltage adjusting circuit in the embodiment of the present invention.
Embodiment
Technical scheme is clearly and completely described below in conjunction with accompanying drawing, it is clear that described implementation
Example is part of the embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, ordinary skill
The every other embodiment that personnel are obtained under the premise of creative work is not made, belongs to the scope of protection of the invention.
In the description of the invention, it is necessary to explanation, term " " center ", " on ", " under ", "left", "right", " vertical ",
The orientation or position relationship of the instruction such as " level ", " interior ", " outer " be based on orientation shown in the drawings or position relationship, merely to
Be easy to the description present invention and simplify description, rather than instruction or imply signified device or element must have specific orientation,
With specific azimuth configuration and operation, therefore it is not considered as limiting the invention.In addition, term " first ", " second ",
" the 3rd " is only used for describing purpose, and it is not intended that instruction or hint relative importance.
In the description of the invention, it is necessary to illustrate, unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or be integrally connected；Can
To be mechanical connection or electrical connection；Can be joined directly together, can also be indirectly connected by intermediary, can be with
It is the connection of two element internals, can is wireless connection or wired connection.For one of ordinary skill in the art
For, the concrete meaning of above-mentioned term in the present invention can be understood with concrete condition.
As long as in addition, technical characteristic involved in invention described below different embodiments non-structure each other
It is be combined with each other into conflict can.
Embodiment 1
A kind of temperature control voltage adjusting circuit is provided in the present embodiment, for adjusting the temperature in the first space and second space, such as
When some precision instruments carry out thermometric, it is necessary to which the temperature of two spaces is consistent, such as an inner space, an outside
Space is, it is necessary to the temperature in the two spaces is consistent, the temperature control voltage adjusting circuit in the present embodiment, available for adjusting the first space
Temperature with second space, is consistent it, realizes stabilization, is accurately controlled.
Temperature control voltage adjusting circuit in the present embodiment, including the first temperature measurement circuit 01, the second temperature measurement circuit 02, first simulation ratio
Compared with circuit 03, analog switching circuit 04, instrument discharge circuit 05, the second analog comparator 06 and high pressure discharge circuit 07, its
In：
First temperature measurement circuit 01 is used for the first temperature for measuring the first space, and first voltage, the second thermometric are exported according to it
Circuit 02 is used to measure the second temperature of second space, and second voltage is exported according to it, as a kind of specific application scenarios, the
One space can be an inner space, and second space is exterior space.The first temperature measurement circuit 01 or the second thermometric electricity herein
Road 02 can be realized by thermistor or temperature sensor, realize the conversion between temperature signal and voltage signal.First
Temperature can might be less that second temperature with second temperature.
First analog comparator 03, two input inputs first voltage and second voltage respectively, by comparing
State first voltage and second voltage its output end the first control signal of output.The first analog comparator 03 herein includes one
Individual comparator, if first voltage is more than second voltage, high level is exported, it is defeated if first voltage is less than second voltage
Go out low level.High level or low level are sent to analog switching circuit as the first control signal.
Analog switching circuit 04, its control terminal input first control signal, and two input inputs described respectively
First voltage and second voltage.Two output end exports the first differential voltage and second respectively according to first control signal
Differential voltage.The effect of analog switching circuit 04 is that voltage larger in first voltage and second voltage is fixed on into an output
End output, and output end connection is the input that larger signal is inputted in instrument discharge circuit, such instrument discharge circuit
The difference of two signals of middle input can be always on the occasion of, will not because input negative value and damage its internal components.
Specifically, when first voltage is more than second voltage, first control signal is high level, controls the first output end
First differential voltage of output is first voltage, and the second differential voltage of the second output end output is second voltage.When the first electricity
When pressure is less than second voltage, first control signal is low level, and the first differential voltage for controlling the first output end to export is
Second voltage, the second differential voltage of the second output end output is first voltage, so no matter first voltage and second voltage
Just, the output of the first output end is all higher voltage among the two, and the output of the second output end is relatively low among the two
Voltage, the first control signal control the voltage inversion of two output ends output according to its low and high level.Wherein, the first temperature and the
The difference of two temperature, the difference of the first differential voltage and the second differential voltage, linearly increase or reduce, and so pass through monitoring the
The difference can of one differential voltage and the second differential voltage reflects the temperature gap of the first space and second space.
Instrument discharge circuit 05, its first input end input first differential voltage, described in the input of its second input
Second differential voltage, due to the effect of analog switching circuit 04, no matter whether first voltage is more than second voltage, the first differential electrical
Pressure voltage always bigger among the two, therefore the first differential voltage is more than the second differential voltage, thus first input end and
Difference between second input always remain as on the occasion of so that instrument discharge circuit can with normal work, shown first
The difference of differential voltage and shown second differential voltage amplifies voltage after sending out greatly by its output end output meter.
Second analog comparator 06, its input input the instrument amplification voltage, the instrument are amplified into voltage and base
Quasi- voltage is compared, and the second control signal is exported according to comparative result.Reference voltage is a magnitude of voltage pre-set, this
1.5V can be selected in embodiment, when instrument amplification voltage is more than 1.5V, the second control signal is high level, and high pressure amplifier is electric
Road works；When instrument amplification voltage is less than or equal to 1.5V, the second control signal of output is low level, high pressure discharge circuit
Do not work.In other embodiments, reference voltage can rationally be set, and be traditionally arranged to be 1-2V.
High pressure discharge circuit 07, its input input the instrument amplification voltage, its control terminal input second control
Signal, when secondary signal is high level, the high pressure discharge circuit 07 is worked, and instrument amplification voltage is exported after amplification,
The voltage adjusts voltage as power, for adjusting the power of temperature equipment.As a kind of specific mode, high pressure discharge circuit
The multiple of amplification could be arranged to 7-10 times, output current 500mA, for being controlled to temperature equipment, temperature equipment work
The temperature of the first space or second space of opposing is adjusted so that the difference between the first temperature and second temperature reduces, directly
To reaching unanimity.Temperature equipment herein can be provided in the fan between the first space and second space, pass through voltage control
The rotating speed of fan processed, the rotating speed of the temperature difference more big fan are faster so that the temperature difference of the first space and second space reduces.
As further preferred implementation, in order to reduce the impedance in circuit, also include in the temperature control voltage adjusting circuit
First voltage follows circuit and second voltage to follow circuit, as shown in Fig. 2 the first voltage warp of first temperature measurement circuit output
The first voltage inputs first analog comparator after following processing of circuit.The second of the second temperature measurement circuit output
Voltage inputs second analog comparator after the second voltage follows processing of circuit.Voltage follower circuit herein leads to
Overvoltage follower realizes that voltage follower is to realize that output voltage follows a kind of electronic component of the change of input voltage.
The voltage amplification factor perseverance of voltage follower is less than and close to 1, and the distinguishing feature of voltage follower is exactly that input impedance is high, and
Output impedance is low.In general, input impedance can reach several megohms, and output impedance is low, generally only several ohm, even
It is lower.Impedance is reduced by voltage follower.
In addition, the temperature control voltage adjusting circuit can also follow circuit including tertiary voltage, as shown in Fig. 2 the instrument amplifier
The instrument amplification voltage that circuit 05 exports first passes through pressure limiting, and voltage limiting value is 3V herein, because the power output of temperature equipment has one
Individual limitation, easily it is burned out or damages more than the limitation temperature equipment, therefore the instrument amplification electricity that instrument discharge circuit 05 exports
Pressure need by voltage limiter, make its export voltage after high pressure amplifier without departing from the power of adjusting device.The present embodiment
Middle voltage limiting value is 3V, and the instrument amplification voltage after voltage limiter inputs the high pressure fortune after the tertiary voltage follows processing of circuit
Electric discharge road 07.Tertiary voltage herein follows circuit to follow circuit and second voltage to follow the use of circuit with above-mentioned first voltage
It is identical.
In concrete implementation mode, the system power supply input of temperature control voltage adjusting circuit is DC28V, passes through power voltage step down chip
It is the device power supply in whole temperature control voltage adjusting circuit to be adjusted to DC5V, and DC28V directly powers for high pressure discharge circuit, such as Fig. 2 institutes
Show.Further, since comparator of the prior art is mostly integrated chip, one or more comparator circuits are provided with, because
The first analog comparator 03 and the second analog comparator 06 in this embodiment above can pass through a comparator core
Piece IC realizes that the comparator chip internal is at least integrated with two comparator circuits.
Temperature control voltage adjusting circuit in the present embodiment, a specific workflow is provided herein：Wherein, the first temperature measurement circuit
01 temperature for measuring confined space in temperature control box, the second temperature measurement circuit 02 are used to detect the environment temperature outside temperature control box.Two
The simulation of access first after first voltage follows circuit and second voltage follows circuit respectively of the output signal of individual temperature measurement circuit
Comparison circuit 03, when the temperature in confined space and the temperature gap outside confined space are at 3 DEG C, analog switching circuit 04 exports
The first differential voltage and the pressure difference of the second differential voltage be 0.0091V.Outside with the temperature in confined space and confined space
The temperature difference of temperature linearly increase, the pressure difference of the first differential voltage and the second differential voltage is with the change of temperature difference, linearly
Increase or linear reduction.When temperature difference is at 15 DEG C, the pressure difference of the first differential voltage and the second differential voltage is 0.0271V.
This voltage amplifies 110.9 times by instrument discharge circuit 05, obtains instrument amplification voltage, the times magnification of instrument discharge circuit 05
Number can also be set as needed, be typically chosen 80-200 times or so.Instrument amplification control source second is simulated more electric
Road 06 and tertiary voltage follow circuit.Tertiary voltage follows circuit equivalent output meter amplification voltage (generally 1.5V-3V),
Instrument amplification voltage is used for compared with the reference voltage of analog comparator in second analog comparator.Analog comparator
Comparison voltage is set as 1.5V, the second analog comparator output high level when instrument amplification voltage is more than 1.5V, high
Pressure discharge circuit 07 is started working.Instrument is amplified voltage (generally 1.5V~3V) 8.5 times of amplification by high pressure discharge circuit 07, defeated
It is 500mA to go out electric current, and output voltage is 12.75V~25.5V, and this voltage is according to the temperature in incubator with incubator external environment temperature
Spend poor, linear change.The maximum current output of high pressure discharge circuit 07 can reach 750mA, and value output current value herein can be with
Set as needed.Further, it is also possible to by setting the multiplication factor in instrument discharge circuit and high pressure discharge circuit, come
Export different voltage ranges.
Obviously, above-described embodiment is only intended to clearly illustrate example, and is not the restriction to embodiment.It is right
For those of ordinary skill in the art, can also make on the basis of the above description it is other it is various forms of change or
Change.There is no necessity and possibility to exhaust all the enbodiments.And the obvious change thus extended out or
Among changing still in the protection domain of the invention.
Claims (10)
- A kind of 1. temperature control voltage adjusting circuit, it is characterised in that including：First temperature measurement circuit, for measuring first temperature in the first space, first voltage is exported according to it；Second temperature measurement circuit, for measuring the second temperature of second space, second voltage is exported according to it；First analog comparator, two input input first voltage and second voltage respectively, pass through more described first Voltage and second voltage its output end the first control signal of output；Analog switching circuit, its control terminal input first control signal, and two input inputs first electricity respectively Pressure and second voltage, two output end export the first differential voltage and the second differential electrical respectively according to first control signal Pressure；Instrument discharge circuit, its first input end input first differential voltage, and its second input input described second is poor Component voltage, its output end output meter amplification voltage；Second analog comparator, its input input the instrument amplification voltage, export the second control more afterwards with reference voltage Signal processed；High pressure discharge circuit, its input input the instrument amplification voltage, and its control terminal inputs second control signal, defeated Go out power output after the instrument is amplified voltage amplification by end according to second control signal and adjust voltage.
- 2. temperature control voltage adjusting circuit according to claim 1, it is characterised in that circuit also is followed including first voltage, it is described It is more electric that the first voltage of first temperature measurement circuit output inputs first simulation after the first voltage follows processing of circuit Road.
- 3. temperature control voltage adjusting circuit according to claim 1 or 2, it is characterised in that also follow circuit including second voltage, institute The second voltage for stating the output of the second temperature measurement circuit inputs the analog switching circuit after the second voltage follows processing of circuit.
- 4. temperature control voltage adjusting circuit according to claim 1 or 2, it is characterised in that also follow circuit including tertiary voltage, institute The instrument amplification voltage for stating the output of instrument discharge circuit inputs the high pressure amplifier after the tertiary voltage follows processing of circuit Circuit.
- 5. temperature control voltage adjusting circuit according to claim 1, it is characterised in that in the analog switching circuit, first voltage During more than second voltage, it is first voltage that first control signal, which controls the first differential voltage, and second differential voltage is Second voltage；When the first voltage is less than second voltage, first control signal controls the first differential voltage as the second electricity Pressure, second differential voltage is first voltage.
- 6. according to the temperature control voltage adjusting circuit described in claim 1 or 2 or 5, it is characterised in that first temperature and described second The difference of the difference of temperature, the first differential voltage and the second differential voltage, linearly increases or reduces.
- 7. temperature control voltage adjusting circuit according to claim 1, it is characterised in that the reference voltage is 1V-2V, the high pressure The multiple of discharge circuit amplification is 7-10 times.
- 8. temperature control voltage adjusting circuit according to claim 4, it is characterised in that the instrument amplification voltage is by voltage limiter The tertiary voltage is inputted after reason and follows circuit.
- 9. temperature control voltage adjusting circuit according to claim 8, it is characterised in that the power adjustment control source temperature adjustment is set It is standby, for the temperature in the first space or second space to be adjusted so that the first temperature and second temperature reach unanimity.
- 10. temperature control voltage adjusting circuit according to claim 1, it is characterised in that first analog comparator and described Second analog comparator is arranged in a comparator chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611183858.1A CN106502299B (en) | 2016-12-20 | 2016-12-20 | A kind of temperature control voltage adjusting circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611183858.1A CN106502299B (en) | 2016-12-20 | 2016-12-20 | A kind of temperature control voltage adjusting circuit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106502299A CN106502299A (en) | 2017-03-15 |
| CN106502299B true CN106502299B (en) | 2017-11-28 |
Family
ID=58333323
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611183858.1A Active CN106502299B (en) | 2016-12-20 | 2016-12-20 | A kind of temperature control voltage adjusting circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106502299B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107066016B (en) * | 2017-05-25 | 2018-08-24 | 华通信安(北京)科技发展有限公司 | A kind of temperature control voltage adjusting circuit |
| CN107390744A (en) * | 2017-08-22 | 2017-11-24 | 华通信安(北京)科技发展有限公司 | A kind of temperature control power amplification circuit |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101169665A (en) * | 2006-10-27 | 2008-04-30 | 台达电子工业股份有限公司 | Fan system and motor drive and control device |
| CN104501986A (en) * | 2014-12-16 | 2015-04-08 | 北京航天时代光电科技有限公司 | High-precision wide-range temperature measurement system |
| CN206322051U (en) * | 2016-12-20 | 2017-07-11 | 华通信安(北京)科技发展有限公司 | A kind of temperature control voltage adjusting circuit |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5060988B2 (en) * | 2008-02-18 | 2012-10-31 | セイコーインスツル株式会社 | Temperature detection circuit |
-
2016
- 2016-12-20 CN CN201611183858.1A patent/CN106502299B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101169665A (en) * | 2006-10-27 | 2008-04-30 | 台达电子工业股份有限公司 | Fan system and motor drive and control device |
| CN104501986A (en) * | 2014-12-16 | 2015-04-08 | 北京航天时代光电科技有限公司 | High-precision wide-range temperature measurement system |
| CN206322051U (en) * | 2016-12-20 | 2017-07-11 | 华通信安(北京)科技发展有限公司 | A kind of temperature control voltage adjusting circuit |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106502299A (en) | 2017-03-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8224498B2 (en) | Device for controlling heat dissipation of apparatus and apparatus having the same | |
| CN104599850B (en) | A kind of charging method and device | |
| CN108572280A (en) | A kind of large range high precision explosive device resistance tester | |
| US9519041B2 (en) | System and method for providing an accurate and cost-effective current sensor calibration | |
| CN208270656U (en) | A kind of large range high precision explosive device resistance tester | |
| CN106502299B (en) | A kind of temperature control voltage adjusting circuit | |
| CN103679246A (en) | Temperature measurement method and device for embedded smart card chip | |
| CN107066016B (en) | A kind of temperature control voltage adjusting circuit | |
| CN206322051U (en) | A kind of temperature control voltage adjusting circuit | |
| CN104568227A (en) | Temperature sensing bulb detection circuit, method and device | |
| US20150055264A1 (en) | Current-limiting circuit and apparatus | |
| CN109209962B (en) | Fan detection chip, fan detection method and fan detection system | |
| CN110850261A (en) | Online measurement circuit and measurement method | |
| CN106374551A (en) | Apparatus for performing resistance control on current detection component in electronic device and associated method | |
| CN104459591A (en) | Automatic testing device of direct detection type radiometer | |
| CN110045310A (en) | Current standard device based on quantum accurate measurement | |
| CN103293509A (en) | Calibrating method of electric energy meter system parameters | |
| US20170288439A1 (en) | Signal processing circuit, coulomb counter circuit, and electronic device | |
| CN103746720B (en) | Wireless communication module method of adjustment | |
| CN108318756A (en) | A kind of high-voltage power unit test system | |
| CN213336535U (en) | Temperature detection circuit and household appliance | |
| US8847674B1 (en) | Systems and methods for power limiting for a programmable I/O device | |
| CN110069031A (en) | A kind of high temperature sensitive type pressure sensing control system and method | |
| CN109031097A (en) | A kind of chip-detecting apparatus | |
| CN103076494A (en) | Power consumption measuring device and method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20221215 Address after: 7th Floor, Zhongguancun Intellectual Property Building, 21 Haidian South Road, Haidian District, Beijing 100089 Patentee after: Beijing Intellectual Property Management Co.,Ltd. Address before: 100085 Internet Innovation Center 512, Building 5, East District, Yard 10, Northwest Wangdong Road, Haidian District, Beijing Patentee before: HUATONG XIN'AN (BEIJING) TECHNOLOGY DEVELOPMENT CO.,LTD. |
|
| TR01 | Transfer of patent right |