CN106658796A - Voltage regulator circuit and voltage regulating method - Google Patents
Voltage regulator circuit and voltage regulating method Download PDFInfo
- Publication number
- CN106658796A CN106658796A CN201611220732.7A CN201611220732A CN106658796A CN 106658796 A CN106658796 A CN 106658796A CN 201611220732 A CN201611220732 A CN 201611220732A CN 106658796 A CN106658796 A CN 106658796A
- Authority
- CN
- China
- Prior art keywords
- temperature
- igbt
- load
- default
- pressure regulation
- 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.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B6/00—Heating by electric, magnetic or electromagnetic fields
- H05B6/02—Induction heating
- H05B6/06—Control, e.g. of temperature, of power
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Electric Vacuum Cleaner (AREA)
- Control Of Electrical Variables (AREA)
Abstract
The invention provides a voltage regulator circuit and a voltage regulating method. The voltage regulator circuit comprises a controller, multistage switch units, a load and multistage voltage regulating units. The voltage regulating method comprises the following steps: when an electromagnetic heating device operates, detecting coil temperature and insulated gate bipolar transistor (IGBT) temperature in real time; based on a preset coil temperature range corresponding to the coil temperature or a preset IGBT temperature range corresponding to IGBT, controlling the conduction of the first stage of switch unit by the controller so that the first end of the load is connected with the ground or controlling the conduction of the switch unit connected with any stage of voltage regulating unit by the controller so as to regulate the electric potential of the first end of the load, wherein the load is a draught fan of the electromagnetic heating device. The regulation for the wind speed of the draught fan according to coil or IGBT temperature can be realized, so that the service life of the draught fan can be prolonged, and the problems of the draught fan such as loud noise, high energy consumption and low temperature performance are solved.
Description
Technical field
The present invention relates to power control techniques field, more particularly to a kind of voltage regulator circuit and voltage adjusting method.
Background technology
At present, Electromagnetic Heating product is no matter high-power or under the conditions of lower powered, no matter its IGBT temperature and line
In the case that disk temperature is high or low, the operating voltage of the blower fan of Electromagnetic Heating product is all fixed, correspondingly rotating speed
It is fixed；Or the Electromagnetic Heating product having carries out speed governing by pwm signal under fixed voltage to blower fan.
However, above several fan speed regulation schemes cause blower fan long-time to work in fixed voltage or with fixed rotating speed,
The life-span of blower fan can be caused not enough, poor reliability can also cause the problem that energy consumption is big and noise is big.Therefore, now it is badly in need of in difference
The rotating speed of blower fan can also be adjusted scheme under conditions of power and different IGBT temperatures and drum temperature, to solve wind
Machine short life, noise is big and the low problem of energy consumption.
The content of the invention
For the defect of prior art, the invention provides a kind of voltage regulator circuit and voltage adjusting method, can solve
The problem that certainly the electromechanical pressure of prior art wind or rotating speed cannot be adjusted.
In a first aspect, the invention provides a kind of voltage regulator circuit, the voltage regulator circuit includes：It is controller, many
Level switch element, load and multi-stage pressure regulating unit；
The first end of first order switch element is connected with the first end of the load, and the second of the first order switch element
End is connected to ground, and the 3rd end of the first order switch element is connected with the controller；Second end of the load and height electricity
Flushconnection；
The first end of n-th grade of switch element is connected with the second end of (n-1)th grade of pressure regulation unit, n-th grade of switch element
The second end be connected to ground, the 3rd end of n-th grade of switch element is connected with the controller；N is just whole more than or equal to 2
Number；
The first end of first order pressure regulation unit is connected with the first end of the load, and the second of the first order pressure regulation unit
End is connected with the first end of second level pressure regulation unit；The first end of any level pressure regulation unit in addition to the first order is adjusted with previous stage
The second end connection of pressure unit；
Wherein, controller controls the first order switching means conductive first end of load is connected to ground or is controlled
The switching means conductive being connected with any level pressure regulation unit is adjusting the current potential of the first end of the load.
Alternatively, the first order switch element includes：First switch pipe and first resistor；
The control end of the first switch pipe is connected with the first end of the first resistor, and the first of the first switch pipe
End is connected with the first end of the load, and the second end of the first switch pipe is connected to ground；Second end of the first resistor
It is connected with the controller.
Alternatively, n-th grade of switch element includes：Current-limiting resistance and switching tube；
The control end of the switching tube of n-th grade of switch element and the first of the current-limiting resistance of n-th grade of switch element
End connection, the first end of the switching tube of n-th grade of switch element is connected with the second end of (n-1)th grade of pressure regulation unit, institute
The second end for stating the switching tube of n-th grade of switch element is connected to ground；Second end of the current-limiting resistance of n-th grade of switch element with
The controller connection.
Alternatively, include per one-level pressure regulation unit：Zener diode and regulating resistor；
The Zener diode is in parallel with the regulating resistor；
The negative electrode of the Zener diode of the first order pressure regulation unit is connected with the first end of the load, except the first order it
The negative electrode of the Zener diode of outer any level pressure regulation unit is connected with the anode of the Zener diode of previous stage pressure regulation unit.
Alternatively, the voltage regulator circuit also includes：Fly-wheel diode；
The fly-wheel diode is in parallel with the load.
Alternatively, the voltage regulator circuit includes N level switch elements；
Connect one to one with N number of drive signal that the controller is exported per the 3rd end of one-level switch element；Wherein,
N is the positive integer more than or equal to 1.
Second aspect, the invention provides a kind of voltage adjusting method based on above-mentioned any one voltage regulator circuit,
Methods described includes：
When electromagnetic heater runs, real-time detection drum temperature and insulated gate bipolar transistor IGBT temperature；
Based on the corresponding default drum temperature range of the drum temperature or the corresponding default IGBT temperatures of the IGBT
Scope, controller outputs control signals to the default drum temperature range or the corresponding end of the default IGBT temperature scope
Mouthful, with the voltage at regulating load two ends.
Alternatively, the load is the blower fan of electromagnetic heater；
Correspondingly, the controller outputs control signals to the default drum temperature range or the default IGBT temperature
The corresponding port of scope, with the voltage at regulating load two ends, including：
Controller control first order switching means conductive with by the first end of blower fan be connected to ground or control with times
The switching means conductive of one-level pressure regulation unit connection to adjust the current potential of the first end of the blower fan, to adjust to the blower fan
Speed.
Alternatively, it is described corresponding pre- based on the corresponding default drum temperature range of the drum temperature or the IGBT
If IGBT temperature scope, the controller outputs control signals to the default drum temperature range or the default IGBT temperature
The corresponding port of scope, with the voltage at regulating load two ends, including：
In the drum temperature more than the first default drum temperature or the IGBT temperature more than the first default IGBT temperature
When spending, controller exports the first drive signal to the first order switch element, control the first order switching means conductive with
The first end of load is connected to ground；
Drum temperature is preset in the drum temperature less than or equal to first and the IGBT temperature is default less than or equal to first
During IGBT temperature, based on the corresponding default drum temperature range of the drum temperature or the corresponding default IGBT temperature of the IGBT
Degree scope, controller output drive signal is extremely corresponding with the default drum temperature range or the default IGBT temperature scope
The connection of pressure regulation unit switch element, to control the switching means conductive that is connected with the pressure regulation unit to adjust the load
First end current potential.
Alternatively, it is described corresponding pre- based on the corresponding default drum temperature range of the drum temperature or the IGBT
If IGBT temperature scope, controller output drive signal to the default drum temperature range or the default IGBT temperature
The switch element of the corresponding pressure regulation unit connection of scope, to control the switching means conductive being connected with the pressure regulation unit to adjust
The current potential of the first end of the load, including：
In the drum temperature more than the second default drum temperature and less than or equal to the described first default drum temperature, or
When the IGBT temperature is more than the second default IGBT temperature and less than or equal to the described first default IGBT temperature, controller output the
Two driving signal is connected to the second level switch element being connected with first order pressure regulation unit with control and the first order pressure regulation unit
The second level switching means conductive for connecing is adjusting the current potential of the first end of the load；
In the drum temperature more than the 3rd default drum temperature and less than or equal to the described second default drum temperature, or
When the IGBT temperature is more than the 3rd default IGBT temperature and less than or equal to the described second default IGBT temperature, controller output the
Three drive signals are connected to the third level switch element being connected with second level pressure regulation unit with control and the second level pressure regulation unit
The third level switching means conductive for connecing is adjusting the current potential of the first end of the load；
In the drum temperature more than the default drum temperature of M+1 and less than or equal to the default drum temperature of the M, or
The IGBT temperature more than the default IGBT temperatures of M+1 and during IGBT temperature default less than or equal to the M, controller output the
M+1 drive signals are connected to the M+1 level switch elements being connected with M level pressure regulation units with control and the M level pressure regulation unit
The M+1 levels switch person of leading for connecing turns on to adjust the current potential of the first end of the load；
Wherein, M is the positive integer more than or equal to 3.
As shown from the above technical solution, the present invention provides a kind of voltage regulator circuit and voltage adjusting method, the voltage
Adjusting circuit includes：Controller, multiple-pole switch unit, load and multi-stage pressure regulating unit, first order switch element is in the control
The first end of the load is connected to ground under the control of device；It is described to lead in connected switch element per one-level pressure regulation unit
The current potential of the first end of the load is adjusted when logical.Thus, under the control of the controller, by multiple-pole switch unit and multistage tune
Pressure unit can realize that the voltage to loading two ends carries out multi-stage pressure regulating；
Further, in the voltage adjusting method based on above-mentioned voltage regulator circuit, then can by collection drum temperature and
IGBT temperature, according to both corresponding preset temperature ranges, can be realized to blower fan by switch element and multi-stage pressure regulating unit
The voltage at two ends carries out multi-stage pressure regulating, and load for blower fan when, then be capable of achieving the wind speed according to drum or IGBT temperature to blower fan
Carry out multistage regulation, the life-span of blower fan can be extended, and solve fan noise big, high energy consumption and it is stability poor the problems such as.
Description of the drawings
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
The accompanying drawing to be used needed for having technology description is briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can be with
Other accompanying drawings are obtained according to these figures.
Fig. 1 is a kind of structural representation of the voltage regulator circuit in one embodiment of the invention；
Fig. 2 is a kind of electrical block diagram of the voltage regulator circuit in another embodiment of the present invention；
Fig. 3 is a kind of schematic flow sheet of the voltage adjusting method in one embodiment of the invention；
Fig. 4 is a kind of schematic flow sheet of the voltage adjusting method in another embodiment of the present invention；
Fig. 5 is a kind of schematic flow sheet of the voltage adjusting method in another embodiment of the present invention；
Fig. 6 is a kind of schematic flow sheet of the voltage adjusting method in another embodiment of the present invention.
Specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than the embodiment of whole.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made
Embodiment, belongs to the scope of protection of the invention.
Fig. 1 is a kind of structural representation of the voltage regulator circuit in one embodiment of the invention, as shown in figure 1, the electricity
Voltage regulator circuit includes：Controller 1, multiple-pole switch unit, load 3 and multi-stage pressure regulating unit.Wherein, multiple-pole switch unit bag
Include：The first order switch element 21 that illustrates in Fig. 1, second level switch element 22 ..., N level switch element 2N；Multi-stage pressure regulating
Unit includes：The first order pressure regulation unit 41 that illustrates in Fig. 1, second level pressure regulation unit 42 ..., N-1 level pressure regulation unit 4
(N-1)。
Specifically, the first end of first order switch element 21 is connected with the first end of the load 3, the first order switch
Second end of unit 21 is connected to ground, and the 3rd end of the first order switch element 21 is connected with the controller 1；The load
3 the second end is connected with high level VCC.
The first end of n-th grade of switch element 2n is connected with the second end of (n-1)th grade of pressure regulation unit 4 (n-1), n-th grade of switch
Second end of unit 2n is connected to ground, and the 3rd end of n-th grade of switch element 2n is connected with the controller 1；N be more than etc.
In 2 positive integer.
The first end of first order pressure regulation unit 41 is connected with the first end of the load 3, the first order pressure regulation unit 41
The second end be connected with the first end of second level pressure regulation unit 42.As shown in figure 1, any level pressure regulation unit in addition to the first order
First end be connected with the second end of previous stage pressure regulation unit.
Wherein, controller 1 controls the first order switch 21 conducting the first end of load 3 is connected to ground or is controlled
The switching means conductive being connected with any level pressure regulation unit is adjusting the current potential of the first end of the load.
Specifically, when first order switch element 21 receives the drive signal of the transmission of controller 1, first order switch is single
The first end end connected directly to the grounded of load 3, the then voltage for being now added in 3 two ends of load are VCC by the conducting of unit 21；And work as and remove
Any level switch element outside the first order receive controller 1 transmission drive signal when, the switching means conductive so that with
The pressure regulation unit of switch element connection adjusts the current potential of the first end of the load, and during different switching means conductive, most
The current potential for adjusting the first end of the load for obtaining eventually is different, such as when second level switch element 22 is turned on, first order pressure regulation list
Unit 41 is accessed in circuit with the current potential of the first end of regulating load 3；When third level switch element 23 is turned on, first order pressure regulation unit
41 and second level pressure regulation unit 42 access in load circuit with the current potential of the first end of regulating load 3, the like, here is no longer
Repeat.Thus, open unit and multi-stage pressure regulating unit by multiple-pole switch can be so that the voltage for being added in 3 two ends of load be different.
It should be noted that the load 3 in the present embodiment can be electromagnetic heater blower fan, then based in the present embodiment
Voltage regulator circuit can adjust the voltage at blower fan two ends, so as to adjust the wind speed of blower fan.Load 3 in the present embodiment can also be
Buzzer, then can adjust the voltage at buzzer two ends based on the voltage regulator circuit in the present embodiment, so as to adjust buzzer
Volume.The present embodiment is not any limitation as to this.
For example, the controller 1 in the present embodiment can be processor, such as central processing unit (Central
Processing Unit, abbreviation CPU) etc..
In the present embodiment, voltage regulator circuit includes：Controller 1, multiple-pole switch unit, load 3 and multi-stage pressure regulating unit.
Wherein, first order switch element 21 is connected to ground the first end of the load 3 under the control of the controller 1；It is described every
One-level pressure regulation unit adjusts the current potential of the first end of the load 3 in connected switching means conductive.Thus, in control
Under the control of device 1, can realize that the voltage to loading two ends carries out multistage tune by multiple-pole switch unit and multi-stage pressure regulating unit
Pressure, when such as load is the blower fan of electromagnetic heater, then can adjust blower fan two based on the voltage regulator circuit in the present embodiment
The voltage at end, so as to reach the purpose of the wind speed for adjusting blower fan, can extend the life-span of blower fan, and solve fan noise it is big,
High energy consumption and it is stability poor the problems such as.
In an alternate embodiment of the present invention where, as shown in Fig. 2 the first order switch element 21 is specifically included：The
One switching tube Q1 and first resistor R2.
Wherein, the control end of the first switch pipe Q1 is connected with the first end of first resistor R1, and described first opens
The first end for closing pipe Q1 is connected with the first end of the load 3, and second end of the first switch pipe Q1 is connected to ground；Described
Second end of one resistance R1 is connected with the controller 1.Understandably, the voltage regulator circuit includes N level switch elements；Often
N number of drive signal that 3rd end and the controller of one-level switch element are exported connects one to one；Wherein, N be more than etc.
In 1 positive integer.
Specifically, when the control end of first switch pipe Q1 receives the drive signal of the transmission of controller 1, and drive signal
For high level when, first switch pipe Q1 conducting, so as to by load 3 first end be connected to ground so that load 3 two ends voltage be
VCC, if load is blower fan, the voltage for being added in blower fan two ends is VCC, then now the wind speed of blower fan reaches maximum.
Understandably, the R1 in the present embodiment is used for current limliting, to protect first switch pipe Q1.
For example, the first switch pipe Q1 in the present embodiment can be triode.Then correspondingly, the first switch pipe Q1
Base stage be connected with the first end of first resistor R1, the colelctor electrode of the first switch pipe Q1 and it is described load 3 first
End connection, the emitter stage of the first switch pipe Q1 is connected to ground.
Specifically, n-th grade of switch element includes：Current-limiting resistance and switching tube；N is the positive integer more than or equal to 2.Lift
For example, as shown in Fig. 2 the switch module in every grade of switch element includes current-limiting resistance and switching tube, such as second level switch
Unit 22 includes current-limiting resistance R3 and switching tube Q2, and third level switch element includes current-limiting resistance R5 and switching tube Q3.
Specifically, the current-limiting resistance of the control end of the switching tube of n-th grade of switch element and n-th grade of switch element
First end connection, the second end of the first end of the switching tube of n-th grade of switch element and (n-1)th grade of pressure regulation unit connects
Connect, the second end of the switching tube of n-th grade of switch element is connected to ground；The of the current-limiting resistance of n-th grade of switch element
Two ends are connected with the controller.For example, the control end of the switching tube Q2 of second level switch element is by current-limiting resistance R3 and control
Device processed 1 connects, and the first end of switching tube Q2 is connected with the second end of first order pressure regulation unit, the second end and the ground connection of switching tube Q2
End connection.
For example, the switching tube in above-mentioned switch element at different levels can be triode, correspondingly, the base stage of the triode
It is connected with the first end of the current-limiting resistance, the colelctor electrode of the triode connects with the second end of corresponding pressure regulation unit, institute
The emitter stage for stating triode is connected to ground.
In an alternate embodiment of the present invention where, include per one-level pressure regulation unit：Zener diode and regulating resistor.
As shown in Fig. 2 including Zener diode and regulating resistor in every grade of pressure regulation unit, such as first order pressure regulation unit 41 includes voltage stabilizing
Diode ZD1 and regulating resistor R2；Second level pressure regulation unit 42 includes zener diode ZD2 and regulating resistor R4.
Specifically, the Zener diode is in parallel with the regulating resistor；The voltage stabilizing two of the first order pressure regulation unit 41
The negative electrode of pole pipe ZD1 is connected with the first end of the load 3, the Zener diode of any level pressure regulation unit in addition to the first order
Negative electrode be connected with the anode of the Zener diode of previous stage pressure regulation unit.As shown in Fig. 2 Zener diode ZD1 and pressure regulation electricity
R2 is in parallel for resistance, and the negative electrode of Zener diode ZD1 is connected with the first end of the load 3, the anode of the Zener diode ZD1
Connect with the first end of corresponding switch element；The negative electrode of the Zener diode ZD2 of second level pressure regulation unit 42 is adjusted with the first order
The anode connection of the Zener diode ZD1 of pressure unit 41.
In the present embodiment, when the switching tube Q2 in second level switch element 22 receives the drive signal of the transmission of controller 1,
And drive signal be high level when, switching tube Q2 conducting, and now controller 1 send to other switching tubes signal be low electricity
Flat, then other switching tubes are turned off, thus, switching tube Q2 conductings, then the voltage for now loading 3 two ends is VCC-VZD1 (VZD1
For the voltage at Zener diode ZD1 two ends)；In the same manner, when the switching tube Q3 of third level switch element 23 is turned on, 3 two ends are loaded
Voltage is VCC-VZD1-VZD2；The like, when the switching tube QN in N level switch element 2N is turned on, load the electricity at 3 two ends
Press as VCC-VZD1-VZD2 ...-VZD (N-1).So as to be realized to load 3 based on the voltage regulator circuit in the present embodiment many
Level pressure regulation.
Further, in an alternate embodiment of the present invention where, as shown in Fig. 2 the voltage regulator circuit also includes：
Sustained diode 1.Wherein, the sustained diode 1 is in parallel with the load 3.
Fig. 3 is a kind of voltage adjusting method based on above-mentioned any one voltage regulator circuit in one embodiment of the invention
Schematic flow sheet, as shown in figure 3, the voltage adjusting method includes：
S41：When electromagnetic heater runs, real-time detection drum temperature and insulated gate bipolar transistor IGBT temperature
Degree.
S42：Based on the corresponding default drum temperature range of the drum temperature or the corresponding default IGBT of the IGBT
Temperature range, controller outputs control signals to the default drum temperature range or the default IGBT temperature scope is corresponding
Port, with the voltage at regulating load two ends.
Specifically, the load is the blower fan of electromagnetic heater；Correspondingly, the controller outputs control signals to institute
Default drum temperature range or the corresponding port of the default IGBT temperature scope are stated, with the voltage at regulating load two ends, including：
The controller controls the first order switching means conductive first end of blower fan is connected to ground or is controlled and any level pressure regulation
The switching means conductive of unit connection to adjust the current potential of the first end of the blower fan, to carry out speed governing to the blower fan.
In the present embodiment, load as blower fan, then can be by Real-time Collection drum temperature and IGBT temperature, and according to the line
The corresponding default drum temperature range of disk temperature or the corresponding default IGBT temperature scopes of the IGBT, by multiple-pole switch list
Unit and multi-stage pressure regulating unit can be realized carrying out multi-stage pressure regulating to the voltage at blower fan two ends, to realize according to drum or IGBT temperature
Multistage regulation is carried out to the wind speed of blower fan such that it is able to extend the life-span of blower fan, and solve big fan noise, high energy consumption and temperature
The problems such as degree property difference.
In an alternate embodiment of the present invention where, as shown in figure 4, above-mentioned steps S42 specifically may include：
S421：It is default more than first more than the first default drum temperature or the IGBT temperature in the drum temperature
During IGBT temperature, controller exports the first drive signal to the first order switch element, controls the first order switch element
Turn on to be connected to ground the first end of load.
S422：Drum temperature is preset less than or equal to first in the drum temperature and the IGBT temperature is less than or equal to first
It is corresponding default based on the corresponding default drum temperature range of the drum temperature or the IGBT during default IGBT temperature
IGBT temperature scope, controller output drive signal to the default drum temperature range or the default IGBT temperature model
The switch element of corresponding pressure regulation unit connection is enclosed, to control the switching means conductive being connected with the pressure regulation unit to adjust
State the current potential of the first end of load.
Further, above-mentioned steps S422, specifically may include：
In the drum temperature more than the second default drum temperature and less than or equal to the described first default drum temperature, or
When the IGBT temperature is more than the second default IGBT temperature and less than or equal to the described first default IGBT temperature, controller output the
Two driving signal is connected to the second level switch element being connected with first order pressure regulation unit with control and the first order pressure regulation unit
The second level switching means conductive for connecing is adjusting the current potential of the first end of the load；
In the drum temperature more than the 3rd default drum temperature and less than or equal to the described second default drum temperature, or
When the IGBT temperature is more than the 3rd default IGBT temperature and less than or equal to the described second default IGBT temperature, controller output the
Three drive signals are connected to the third level switch element being connected with second level pressure regulation unit with control and the second level pressure regulation unit
The third level switching means conductive for connecing is adjusting the current potential of the first end of the load；
In the drum temperature more than the default drum temperature of M+1 and less than or equal to the default drum temperature of the M, or
The IGBT temperature more than the default IGBT temperatures of M+1 and during IGBT temperature default less than or equal to the M, controller output the
M+1 drive signals are connected to the M+1 level switch elements being connected with M level pressure regulation units with control and the M level pressure regulation unit
The M+1 levels switch person of leading for connecing turns on to adjust the current potential of the first end of the load；
Wherein, M is the positive integer more than or equal to 3.
In order to be illustrated more clearly that technical scheme, below by one on more specifically embodiment is illustrated
Voltage adjusting method is stated, load in the present embodiment is electromagnetic oven blower fan, and controller is CPU, as shown in Figures 5 and 6, the voltage
Control method specifically includes following steps：
S1：Electromagnetic oven is initialized, and main circulating program starts.
S2：Fan speed regulation program, performs once per 100ms.
Specifically, as shown in fig. 6, the fan speed regulation program in step S2 specifically includes following steps：
S201：Fan speed regulation program starts.
S202：Whether drum temperature Mtemp is judged less than drum temperature judgment value Main_PD_AD1, if less than explanation
Current drum temperature also not very height, then jump to S204 and judge IGBT temperature, if greater than illustrating that drum temperature is higher, need wind
Machine full speed operation, jumps to S203.
S203：Put blower fan and turned mark FAN_NO_SPEED=1 at full speed, jump to S3.
S204：IGBT temperature IGBTtemp is judged whether less than IGBT temperature judgment value IGBT_PD_AD1, if less than saying
IGBT temperature also not very height before improving eyesight, then jump to S206 and judge drum temperature, needs higher if greater than explanation IGBT temperature
Blower fan full speed operation, jumps to S205.
S205：Put blower fan and turned mark FAN_NO_SPEED=1 at full speed, jump to S3.
S206：Whether drum temperature Mtemp is judged more than drum temperature judgment value Main_PD_AD2, if greater than entrance
Blower fan first order speed governing state S207, if less than into IGBT temperature S208 is judged.
S207：Open blower fan first order speed governing, CPU pins Driver2 output high level, other air-blower control I/O port outputs
Low level, jumps to S3.
In this step, as shown in Fig. 2 open blower fan first order speed governing referring specifically to：CPU pins Driver2 exports high level
Switching tube Q2 into second level switch element 22, so that switching tube Q2 conductings, so that the voltage at blower fan two ends is
VCC-VZD1。
S208：IGBT temperature IGBTtemp is judged whether more than drum temperature judgment value IGBT_PD_AD2, if greater than entering
Enter blower fan first order speed governing state S209, if less than into drum temperature S2010 is judged.
S209：Open blower fan first order speed governing, CPU pins Driver2 output high level, other air-blower control I/O port outputs
Low level, jumps to S3.
S2010：Whether drum temperature Mtemp is judged more than drum temperature judgment value Main_PD_AD3, if greater than entrance
Blower fan first order speed governing state S2011, if less than into IGBT temperature S2012 is judged.
S2011：Blower fan second level speed governing is opened, CPU pins Driver3 output high level, other air-blower control I/O ports are defeated
Go out low level, jump to S3.
In this step, as shown in Fig. 2 open blower fan second level speed governing referring specifically to：CPU pins Driver3 exports high level
Switching tube Q3 into third level switch element 23, so that switching tube Q3 conductings, so that the voltage at blower fan two ends is
VCC-VZD1-VZD2。
S2012：Judge whether IGBT temperature IGBTtemp is more than drum temperature judgment value IGBT_PD_AD3, if greater than
Into blower fan first order speed governing state S2013, if less than into drum temperature S2014 is judged.
S2013：Blower fan second level speed governing is opened, CPU pins Driver3 output high level, other air-blower control I/O ports are defeated
Go out low level, jump to S3.
And so on, judge always until N level fan speed regulations, are then back to S3.
S3:Judge whether blower fan needs speed governing mark FAN_NO_SPEED=1If FAN_NO_SPEED is 1, is redirected
To S4, if FAN_NO_SPEED is 0, S5 is jumped to.
S4:Blower fan full-speed state, CPU pins Driver1 output high level, other air-blower control I/O port output low levels,
Jump to S5.
In this step, as shown in Fig. 2 blower fan full-speed state is referred specifically to：CPU pins Driver1 exports high level to first
Level switch element 21 in first switch pipe Q1 so that first switch pipe Q1 conducting, so as to by the first end of blower fan directly with ground
Connection so that the voltage at blower fan two ends is VCC.Now the wind speed of blower fan reaches maximum.
S5：Forward perform functions of induction cookers function.
It should be noted that functions of induction cookers function is forward performed in step S5 referring in addition to above-mentioned fan speed regulation program
Other functions function, can be configured according to the actually used situation of electromagnetic oven, will not be described here.
In the present embodiment, drum temperature judgment value Main_PD_AD1>Main_PD_AD2>Main_PD_AD3>…；IGBT
Temperature judgment value IGBT_PD_AD1>IGBT_PD_AD2>IGBT_PD_AD3>….
In describing the invention, it should be noted that term " on ", the orientation of the instruction such as D score or position relationship be base
In orientation shown in the drawings or position relationship, it is for only for ease of the description present invention and simplifies description, rather than indicates or imply
The device or element of indication must have specific orientation, with specific azimuth configuration and operation, therefore it is not intended that to this
The restriction of invention.Unless otherwise clearly defined and limited, term " installation ", " connected ", " connection " should be interpreted broadly, example
Such as, can be fixedly connected, or be detachably connected, or be integrally connected；Can be mechanically connected, or be electrically connected
Connect；Can be joined directly together, it is also possible to be indirectly connected to by intermediary, can be the connection of two element internals.For this
For the those of ordinary skill in field, above-mentioned term concrete meaning in the present invention can be as the case may be understood.
Also, it should be noted that herein, such as first and second or the like relational terms are used merely to one
Entity or operation make a distinction with another entity or operation, and not necessarily require or imply between these entities or operation
There is any this actual relation or order.And, term " including ", "comprising" or its any other variant are intended to contain
Lid nonexcludability is included, so that a series of process, method, article or equipment including key elements not only will including those
Element, but also including other key elements being not expressly set out, or also include for this process, method, article or equipment
Intrinsic key element.In the absence of more restrictions, the key element for being limited by sentence "including a ...", it is not excluded that
Also there is other identical element in process, method, article or equipment including the key element.
Above example only to illustrate technical scheme, rather than a limitation；Although with reference to the foregoing embodiments
The present invention has been described in detail, it will be understood by those within the art that：It still can be to aforementioned each enforcement
Technical scheme described in example is modified, or carries out equivalent to which part technical characteristic；And these modification or
Replace, do not make the spirit and scope of the essence disengaging various embodiments of the present invention technical scheme of appropriate technical solution.
Claims (10)
1. a kind of voltage regulator circuit, it is characterised in that the voltage regulator circuit includes：It is controller, multiple-pole switch unit, negative
Carry and multi-stage pressure regulating unit；
The first end of first order switch element is connected with the first end of the load, the second end of the first order switch element with
Ground connection, the 3rd end of the first order switch element is connected with the controller；Second end of the load connects with high level
Connect；
The first end of n-th grade of switch element is connected with the second end of (n-1)th grade of pressure regulation unit, and the of n-th grade of switch element
Two ends are connected to ground, and the 3rd end of n-th grade of switch element is connected with the controller；N is the positive integer more than or equal to 2；
The first end of first order pressure regulation unit is connected with the first end of the load, the second end of the first order pressure regulation unit with
The first end connection of second level pressure regulation unit；The first end of any level pressure regulation unit in addition to the first order and previous stage pressure regulation list
The second end connection of unit；
Wherein, controller control the first order switching means conductive with by the first end of load be connected to ground or control with times
The switching means conductive of one-level pressure regulation unit connection is adjusting the current potential of the first end of the load.
2. voltage regulator circuit according to claim 1, it is characterised in that the first order switch element includes：First
Switching tube and first resistor；
The control end of the first switch pipe is connected with the first end of the first resistor, the first end of the first switch pipe with
The first end connection of the load, the second end of the first switch pipe is connected to ground；Second end of the first resistor and institute
State controller connection.
3. voltage regulator circuit according to claim 1, it is characterised in that n-th grade of switch element includes：Current limliting electricity
Resistance and switching tube；
The control end of the switching tube of n-th grade of switch element connects with the first end of the current-limiting resistance of n-th grade of switch element
Connect, the first end of the switching tube of n-th grade of switch element is connected with the second end of (n-1)th grade of pressure regulation unit, described n-th
Second end of the switching tube of level switch element is connected to ground；Second end of the current-limiting resistance of n-th grade of switch element with it is described
Controller connects.
4. voltage regulator circuit according to claim 1, it is characterised in that include per one-level pressure regulation unit：The pole of voltage stabilizing two
Pipe and regulating resistor；
The Zener diode is in parallel with the regulating resistor；
The negative electrode of the Zener diode of the first order pressure regulation unit is connected with the first end of the load, in addition to the first order
The negative electrode of the Zener diode of any level pressure regulation unit is connected with the anode of the Zener diode of previous stage pressure regulation unit.
5. the voltage regulator circuit according to any one of Claims 1 to 4, it is characterised in that the voltage regulator circuit
Also include：Fly-wheel diode；
The fly-wheel diode is in parallel with the load.
6. the voltage regulator circuit according to any one of Claims 1 to 4, it is characterised in that the voltage regulator circuit
Including N level switch elements；
Connect one to one with N number of drive signal that the controller is exported per the 3rd end of one-level switch element；Wherein, N is
Positive integer more than or equal to 1.
7. a kind of voltage adjusting method based on voltage regulator circuit any one of claim 1～6, it is characterised in that
Methods described includes：
When electromagnetic heater runs, real-time detection drum temperature and insulated gate bipolar transistor IGBT temperature；
Based on the corresponding default drum temperature range of the drum temperature or the corresponding default IGBT temperature scopes of the IGBT,
Controller outputs control signals to the default drum temperature range or the corresponding port of the default IGBT temperature scope, to adjust
The voltage at section load two ends.
8. voltage adjusting method according to claim 7, it is characterised in that the load for electromagnetic heater wind
Machine；
Correspondingly, the controller outputs control signals to the default drum temperature range or the default IGBT temperature scope
Corresponding port, with the voltage at regulating load two ends, including：
The controller controls the first order switching means conductive first end of blower fan is connected to ground or is controlled and any level
The switching means conductive of pressure regulation unit connection to adjust the current potential of the first end of the blower fan, to carry out speed governing to the blower fan.
9. voltage adjusting method according to claim 7, it is characterised in that described corresponding pre- based on the drum temperature
If drum temperature range or the corresponding default IGBT temperature scopes of the IGBT, controller outputs control signals to described default
Drum temperature range or the corresponding port of the default IGBT temperature scope, with the voltage at regulating load two ends, including：
When the drum temperature presets IGBT temperature more than the first default drum temperature or the IGBT temperature more than first,
Controller exports the first drive signal to the first order switch element, controls the first order switching means conductive to load
First end be connected to ground；
Drum temperature is preset in the drum temperature less than or equal to first and IGBT temperature IGBT default less than or equal to first
During temperature, based on the corresponding default drum temperature range of the drum temperature or the corresponding default IGBT temperature models of the IGBT
Enclose, controller output drive signal to tune corresponding with the default drum temperature range or the default IGBT temperature scope
The switch element of pressure unit connection, with control the switching means conductive that is connected with the pressure regulation unit to adjust the load the
The current potential of one end.
10. voltage adjusting method according to claim 9, it is characterised in that described corresponding based on the drum temperature
Default drum temperature range or the corresponding default IGBT temperature scopes of the IGBT, controller output drive signal to it is described
Default drum temperature range or the switch element of the default IGBT temperature scope corresponding pressure regulation unit connection, with control with
The switching means conductive of pressure regulation unit connection to adjust the current potential of the first end of the load, including：
Drum temperature is preset more than the second default drum temperature and less than or equal to described first in the drum temperature, or it is described
When IGBT temperature presets IGBT temperature more than second and presets IGBT temperature less than or equal to described first, controller output second is driven
Dynamic signal is connected with control to the second level switch element being connected with first order pressure regulation unit with the first order pressure regulation unit
Second level switching means conductive is adjusting the current potential of the first end of the load；
Drum temperature is preset more than the 3rd default drum temperature and less than or equal to described second in the drum temperature, or it is described
When IGBT temperature presets IGBT temperature more than the 3rd and presets IGBT temperature less than or equal to described second, controller output the 3rd is driven
Dynamic signal is connected with control to the third level switch element being connected with second level pressure regulation unit with the second level pressure regulation unit
Third level switching means conductive is adjusting the current potential of the first end of the load；
Drum temperature is preset more than the default drum temperature of M+1 and less than or equal to the M in the drum temperature, or it is described
When IGBT temperature presets IGBT temperature and IGBT temperature default less than or equal to the M more than M+1, controller output M+1
Drive signal is connected with control to the M+1 level switch elements being connected with M level pressure regulation units with the M levels pressure regulation unit
The M+1 levels switch person of leading turn on to adjust the current potential of the first end of the load；
Wherein, M is the positive integer more than or equal to 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611220732.7A CN106658796B (en) | 2016-12-26 | 2016-12-26 | A kind of voltage regulator circuit and voltage adjusting method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611220732.7A CN106658796B (en) | 2016-12-26 | 2016-12-26 | A kind of voltage regulator circuit and voltage adjusting method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106658796A true CN106658796A (en) | 2017-05-10 |
| CN106658796B CN106658796B (en) | 2019-08-23 |
Family
ID=58826888
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611220732.7A Active CN106658796B (en) | 2016-12-26 | 2016-12-26 | A kind of voltage regulator circuit and voltage adjusting method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106658796B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85202632U (en) * | 1985-07-02 | 1987-02-25 | 天津市冶金实验厂 | Automatic regulator of voltage for hydraulic transmission arc-furnace |
| CN201087795Y (en) * | 2007-01-30 | 2008-07-16 | 九阳股份有限公司 | Speed control device of electromagnetic stove cooling fan |
| CN102980216A (en) * | 2011-09-05 | 2013-03-20 | 台达电子工业股份有限公司 | Induction cooker architecture having time-sharing control function, and operation method thereof |
| CN203313438U (en) * | 2013-05-21 | 2013-11-27 | 美的集团股份有限公司 | An induction cooker and a control circuit thereof |
| CN105698332A (en) * | 2014-11-24 | 2016-06-22 | 深圳市共济科技有限公司 | Multi-stage automatic fan speed regulation device and speed regulation method |
-
2016
- 2016-12-26 CN CN201611220732.7A patent/CN106658796B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85202632U (en) * | 1985-07-02 | 1987-02-25 | 天津市冶金实验厂 | Automatic regulator of voltage for hydraulic transmission arc-furnace |
| CN201087795Y (en) * | 2007-01-30 | 2008-07-16 | 九阳股份有限公司 | Speed control device of electromagnetic stove cooling fan |
| CN102980216A (en) * | 2011-09-05 | 2013-03-20 | 台达电子工业股份有限公司 | Induction cooker architecture having time-sharing control function, and operation method thereof |
| CN203313438U (en) * | 2013-05-21 | 2013-11-27 | 美的集团股份有限公司 | An induction cooker and a control circuit thereof |
| CN105698332A (en) * | 2014-11-24 | 2016-06-22 | 深圳市共济科技有限公司 | Multi-stage automatic fan speed regulation device and speed regulation method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106658796B (en) | 2019-08-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US12016104B2 (en) | Induction heat cooking apparatus and method for operating the same | |
| CN106961095B (en) | Current foldback circuit and air conditioner | |
| CN105991005A (en) | Intelligent power module integrated circuit and household electric appliance | |
| CN103277871B (en) | Outdoor fan of air-conditioner speed-regulating control device | |
| JPWO2003085265A1 (en) | Compressor unit and refrigerator using the same | |
| EP2774453B1 (en) | An induction heating cooker | |
| CN106287863A (en) | Electromagnetic heater and control method thereof and control circuit | |
| US11050368B2 (en) | Apparatus for controlling rotation speed of motor, motor and food processing equipment | |
| CN106658796A (en) | Voltage regulator circuit and voltage regulating method | |
| CN107087321A (en) | Method for adjusting hard turn-on voltage of IGBT (insulated Gate Bipolar transistor) and induction cooker | |
| CN205536324U (en) | Infrared ray humidifier | |
| CN204141641U (en) | Electricity cooking pot and controller for heat sink thereof | |
| CN216672595U (en) | Half-bridge IGBT (insulated Gate Bipolar transistor) protection circuit of induction cooker and induction cooker | |
| CN206558876U (en) | Delay startup circuit for protecting laser | |
| CN206755257U (en) | Electromagnetic oven | |
| CN207096857U (en) | A kind of constant-current circuit of amplifier output voltage clamper in driving tube threshold voltage | |
| CN205081472U (en) | Take active power filter of excess temperature protection | |
| CN107404308A (en) | The protection circuit of switching tube and there is its Electromagnetic Heating cooking equipment | |
| CN207732412U (en) | A kind of overtemperature protection system for cash box | |
| CN107484284B (en) | Electromagnetic oven | |
| CN205647331U (en) | Motor speed regulating device and domestic appliance | |
| CN205656520U (en) | Two control by temperature change circuit | |
| EP0759234A1 (en) | Switch with controlled rise and fall characteristics | |
| CN207033811U (en) | The control circuit of blower fan in a kind of electromagnetic oven | |
| CN215496552U (en) | Relay control device and microwave heating device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | 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 |