CN106843364A - The method and apparatus of the Power Control of electric ohm load for being run with alternating voltage - Google Patents
The method and apparatus of the Power Control of electric ohm load for being run with alternating voltage Download PDFInfo
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- CN106843364A CN106843364A CN201610163716.2A CN201610163716A CN106843364A CN 106843364 A CN106843364 A CN 106843364A CN 201610163716 A CN201610163716 A CN 201610163716A CN 106843364 A CN106843364 A CN 106843364A
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- 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
- G05F1/66—Regulating electric power
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Abstract
The present invention relates to a kind of Poewr control method of the ohm load run with alternating voltage.For continuously variable power control,Transistor is operated according to instruction parameter with so that the steepness connected edge and disconnect edge is limited respectively by control device,Wherein operated for the purpose of phase forward position control when transistor and ahead of the curve angle and transistor is connected by the resistance of middle connection,Wherein by being arranged on the capacitor between the output end of transistor and the control terminal of transistor come the connection edge of limit transistor,And control device is again off electric current by the corresponding control of transistor in follow-up zero crossing,Or in order to operate transistor after phase along the purpose of control and in Hou Yanjiao disconnect transistor by the resistance of middle connection,Wherein by being arranged on the capacitor between the output end of transistor and the control terminal of transistor come the disconnection edge of limit transistor,And control device is again switched on electric current by the corresponding control of transistor in follow-up zero crossing.
Description
Technical field
The present invention relates to a kind of method of the Power Control of electric ohm load for being run with alternating voltage.
Background technology
In practice, for example it is so structured that the load of electric heater unit or electrothermal air air blower is known
's.Here, this hot air blowers may be configured to hand-held heat gun, the hand-held heat gun leads to
Can often be operated with one or two power stage.If it is desired to more accurately power adjusting, then the nothing of power
Level regulation or approximate step-less adjustment are required.
However, with many small step-lengths between different each power stages thermal power is carried out this step-less adjustment or
Can there is problems with during approximate step-less adjustment：The current method for Power Control can be supported on it at this
Interfered in the power network of middle operation, thus may damage other devices and/or biology.
Thus, for example excluding the whole wavelength and thus for periodically switching on and off supply voltage wherein
The vibration conversion and control of available thermal power is determined by the ratio of turn-on time and turn-off time.In order that gas
Stream has nearly constant temperature, it is necessary at least switching frequency high of 10 Hz.
If institute can be produced with this frequency error factor high power as common in the electric heater unit
The flickering interference of meaning.These flickerings interference meeting is connected to identical circuit and makes one exposed to phase in working flare
Health in the case of should illuminating to these people plays negative effect.
In addition, the control of common phase forward position is also inappropriate, phase forward position control section ground connect and
The half-wave of deenergization voltage.Generally, set in the case and be configured to TRIAC
Or the switch element of IGCT, the switch element is ignited and is then either completely switched in several milliseconds.By
This produces precipitous electric current edge, the precipitous electric current edge on the unfavorable time of ignition of power phase simultaneously
And the observable higher hamonic wave as radio interference is produced in the case of corresponding thermal power.
This unfavorable precipitous connection in common phase forward position control, should along generally being eliminated with inductance
Inductance connected with pay(useful) load or alternatively as in motor can be pay(useful) load part.So
And, in the hot air blowers in the case of common watt level, this inductance is very big and in addition in warp
It is also nonsensical in Ji.
The content of the invention
Task of the invention is, it is to avoid disadvantages mentioned above and provide a kind of Europe for being run with alternating voltage
The method of the Power Control of nurse load is simple but also cost-effective for power using this method give not only
The possibility of step-less adjustment or approximate step-less adjustment.
In the process, the task is solved in the following manner：By control device according to instruction parameter
To operate transistor, so as to must respectively limit the steepness for connecting edge and disconnect the steepness on edge, wherein
For the purpose of phase forward position control operate the transistor, and ahead of the curve angle when pass through
Between the resistance that connects connect the transistor, wherein by being arranged on the output end of transistor and the control of transistor
Capacitor between terminal processed comes the connection edge of limit transistor, and wherein control device by transistor
Corresponding control is again off electric current in follow-up zero crossing,
Or wherein, in order to operate the transistor along the purpose of control after phase, and on rear edge
The transistor is disconnected by the resistance of middle connection during angle, wherein by be arranged on the output end of transistor with
Capacitor between the control terminal of transistor comes the disconnection edge of limit transistor, and wherein control device leads to
The corresponding control for crossing transistor is again switched on electric current in follow-up zero crossing.
The steepness for connecting edge and disconnection edge of capacitor limit transistor together with resistance, so as to avoid or extremely
Unfavorable higher hamonic wave is reduced less.
Preferably, there is the ambipolar crystalline substance of insulated gate electrode (IGBT) by bipolar transistor, preferably
Body pipe, or field-effect transistor, preferred mos field effect transistor (MOSFET)
As transistor.
According to the present invention it is possible to change instruction parameter in user side, preferably stepless or approximate infinitely change refers to
Make parameter.Therefore, for example using potentiometer, but other users side manipulation modification is also possible.
In a preferred embodiment of the invention, control device can in the following way facilitate the disconnected of electric current
Open：Control device causes the low ohm of the input capacitance of transistor and thus quickly electric discharge.
Here, control device can be caused by the corresponding control of another transistor of additional setting it is described
The electric discharge of the input capacitance of transistor, the drain electrode of another transistor of the additional setting or colelctor electrode with it is described
The control terminal connection and the source terminal of its source electrode or emitter stage with the transistor or transmitting of transistor
Extreme son connection.
According to the present invention it is possible to by bipolar transistor, with the bipolar of insulated gate electrode (IGBT)
Transistor npn npn or field-effect transistor, preferably mos field effect transistor
(MOSFET) it is used as another transistor.
It can be advantageous at least one electrical heating elements are used as into ohm load, or multiple electricity can be added
Thermal element is used as ohm load, wherein running an electrical heating elements first and can pass through phase in user side
The switch answeredTo connect at least another electrical heating elements again.
Thus, it is possible to the power of electric heater unit or electrothermal air air blower is controlled, wherein it is preferred that can nothing
Level ground controls power with many small step-lengths.
Moreover, it relates to a kind of setting for the Power Control of ohm load run with alternating voltage
It is standby.In order to avoid the shortcoming of the beginning part description, give a kind of ohm for being run with alternating voltage and bear
The equipment of the Power Control of load, can be realized simple and cost-effective for the stepless of power using the equipment
Regulation or the possibility of approximate step-less adjustment.
Another task is solved in the following way：The equipment has rectifier, transistor and control
Device, wherein control device are connected by the resistance of middle connection with the control terminal of transistor, wherein controlling
Device is configured to operate transistor to connect along or disconnect the restricted steepness on edge according to instruction parameter,
Capacitor, and control device quilt are wherein set between the output end of transistor and the control terminal of transistor
It is configured to：
Phase forward position control during according to instruction parameter pass through angle ahead of the curve when connect and
The mode disconnected in follow-up zero crossing operates transistor,
Or disconnected when angle ahead of the curve is passed through according to instruction parameter during edge control after phase
And the mode connected in follow-up zero crossing operates transistor.
Here, the equipment may be particularly used to perform the method according to the invention.
According to the present invention it is possible to by transistor configurations be bipolar transistor, with insulated gate electrode
(IGBT) bipolar transistor, or field-effect transistor, preferred metal oxide semiconductcor field effect
Answer transistor (MOSFET).
Preferably, instruction parameter can be changed in user side, preferably infinitely or approximately infinitely changes instruction
Parameter.
Preferably, control device can in the following way facilitate the disconnection of electric current：Control device causes electricity
The low ohm and thus quickly electric discharge held.
According to the present invention it is possible to be additionally provided in another transistor and control device can be configured to lead to
The corresponding control for crossing another transistor of additional setting makes the electric capacity discharge.
In a preferred embodiment of the invention, can be bipolar transistor by another transistor configurations
Pipe, the bipolar transistor with insulated gate electrode (IGBT), or field-effect transistor, preferably
Mos field effect transistor (MOSFET).
Preferably, ohm load can be formed by least one electrical heating elements, or ohm load can
To be formed by multiple electrical heating elements, be provided with for first only run a heating element heater and
User side connects the connection possibility of at least another electrical heating elements again.
Preferably, the equipment can be roused for corresponding Power Control with electric heater unit or electrothermal air
Blower fan is connected or is integrated in electric heater unit or electrothermal air air blower.
According to the present invention, the equipment may be constructed such that and stepless can control or with the work(of many small step size controllings
Rate control device.Here, instruction parameter can regularly or convertibly pre-set.
Brief description of the drawings
Hereinafter the present invention is explained in the embodiment shown in the figures.Accompanying drawing shows：
Fig. 1 shows the first embodiment of equipment of the invention,
Fig. 2 shows the second embodiment of equipment of the invention,
Fig. 3 shows that curent change when being run in the control process of phase forward position according to the equipment of Fig. 1 is bent
Line,
Fig. 4 shows that the curent change according to the equipment of Fig. 1 when being run along control process after phase is bent
Line,
Fig. 5 shows the 3rd embodiment of equipment of the invention, and
Fig. 6 shows the fourth embodiment of equipment of the invention.
Consistent reference is used for same or analogous component in all of the figs.
Specific embodiment
Fig. 1 shows the equipment 13 for the Power Control of ohm load 7, and the ohm load 7 is to apply
The alternating voltage on power supply voltage terminal 1 and 2 is added in run.
Equipment 13 has rectifier, and the rectifier is in an illustrated embodiment by correspondingly connected diode
3rd, 4,5 and 6 formed.
Additionally, equipment 13 also includes transistor 8 and control device 11, wherein control device 11 passes through
The resistance 10 of centre connection is connected with the control terminal 14 of transistor 8, and in the output end of transistor 8
Capacitor 9 is provided between 15 and the control terminal 14 of transistor 8.
Here, control device 11 is configured to according to instruction parameter to connect along or disconnect the restricted of edge
Steepness operates transistor 8.Thus, control device 11 is configurable in the control of phase forward position (referring to figure
3) disconnected according to connection when instructing parameter by angle ahead of the curve during and in follow-up zero crossing
Mode operates transistor 8, or after the phase along control (referring to Fig. 4) during according to instruction parameter
Disconnected when angle ahead of the curve and operate transistor 8 by way of being connected in follow-up zero crossing.
Transistor 8 is switched on or moment for disconnecting is determined by control device 11, and control device 11 has terminal
L and G and output terminals A.Here, terminal L is connected with power supply voltage terminal 2, and terminal G is logical
Cross diode 3 to be connected with power supply voltage terminal 1, to cause by terminal L and G come to control device 11
Power supply.Control device 11 by output terminals A centre access have resistance 10 in the case of with transistor 8
Control terminal 14 connect and be thus connected transistor 8.
Capacitor 9 thus together with resistance 10 limit transistor 8 connect along or disconnect edge steepness, should
Transistor 8 is configured to mos field effect transistor in an illustrated embodiment
(MOSFET)。
Embodiment shown in Fig. 2 is with the difference of the embodiment according to Fig. 1, control device 11
With another output end B and it is also provided with another transistor 12.Another transistor 12 is herein
It is configured to bipolar transistor.
Because the disconnection of transistor 8 is that occur in the zero crossing of electric current, thus edge is disconnected without limitation
Steepness, and can be replace by (the additional setting compared with the embodiment according to Fig. 1) another
Transistor 12 facilitates the disconnection of transistor 8.Here, disconnection can be facilitated in the following way：Control
Device 11 causes the electric discharge of the input capacitance of transistor 8.This is as in the case of the embodiment according to fig. 2 with such as lower section
Formula is carried out：Control device 11 be configured to by the corresponding control of another transistor 12 of additional setting come
Input capacitance to transistor 8 is discharged.
In this case, the output terminals A of control device 11 is maintained on action potential, only defeated to cause
Going out to hold B must produce control pulse.
Fig. 3 shows the power supply electricity when being run according to the embodiment of Fig. 1 during phase forward position controls
Press the change curve of U and source current I.It is switched in moment t0 transistor 8.By the He of capacitor 9
Resistance 10 makes electric current slowly rise, and the electric current just increases completely until moment t1.Thus, slow down electric current
Connection edge the rate of climb, until electric current follows the change of supply voltage in moment t1.
In the zero crossing of electric current, transistor 8 is then disconnected, and until moment t2 is just connect again
It is logical.Then, the slow rate of climb of electric current, and electricity are caused again by capacitor 9 and resistance 10
Stream is until moment t3 just increases completely and follows the change of supply voltage.
The arrangement of Fig. 1 can also be run during edge control after phase, and this produces the electricity shown in Fig. 4
Rheology is buckled line.
If the embodiment according to Fig. 2 should be correspondingly improved, transistor 8 must be facilitated in zero crossing
Connection.Therefore, output terminals A of the resistance 10 not with control device 11 is connected, but it is necessary to replace
It is connected with the terminal G of control device 11.Additionally, another transistor 12 must be with control device 11
Terminal G is separated and is connected with the terminal A of control device 11.In addition, regarding implementation method changes transistor
12 polarity, PNP or p channel transistor are used to cause substitution NPN or N-channel transistor.
Embodiment shown in Fig. 5 is with the difference of the embodiment according to Fig. 1, control device 11
With another output end B, output end B be connected between capacitor 9 and resistance 10 and thus across
Connecting resistance 10.By the corresponding control of output end B, the defeated of transistor 8 can also be caused with this modification
The electric discharge for entering electric capacity and the disconnection for thus facilitating transistor 8.
Fig. 6 shows that according to another embodiment of the invention it is configured to the electric heating with motor 20
Air-blaster.The circuit is not constructed in detail, and it is not inquired into further herein.
In this embodiment, ohm load 7 is formed by two electrical heating elements 16,17.Further it is provided that
A heating element heater 16 is only run first and in user side connects the possibility of the second heating element heater 17 again
Property.
Instruction parameter can be changed in user side by corresponding controlling organization 19, the controlling organization 19
Potentiometer is configured in an illustrated embodiment, thus provides continuously variable power control.
Claims (20)
1. a kind of method of Power Control of ohm load (7) for being run with alternating voltage, its feature
It is that transistor (8) is operated according to instruction parameter by control device (11), to cause to connect edge
It is limited respectively with the steepness for disconnecting edge, wherein
Operate the transistor (8) for the purpose of phase forward position control, and ahead of the curve angle when pass through
The resistance (10) of centre connection connects the transistor (8), wherein by being arranged on the transistor
(8) capacitor (9) between output end and the control terminal of the transistor (8) is described to limit
The connection edge of transistor (8), and wherein described control device (11) also passes through the transistor (8)
Corresponding control be again off electric current in follow-up zero crossing, or wherein
In order to operate the transistor (8) along the purpose of control after phase, and pass through in Hou Yanjiao
The resistance (10) of centre connection disconnects the transistor (8), wherein by being arranged on the transistor
(8) capacitor (9) between output end and the control terminal of the transistor (8) limits crystal
The disconnection edge of pipe, and wherein described control device (11) is also by the corresponding control of the transistor (8)
System is again switched on electric current in follow-up zero crossing.
2. the method as described in previous claim, it is characterised in that by bipolar transistor, with insulation
The bipolar transistor of gate electrode (IGBT), or field-effect transistor, preferred metal oxide half
Conductor field-effect transistor (MOSFET) is used as transistor (8).
3. such as method in any one of the preceding claims wherein, it is characterised in that the instruction parameter can
Change in user side, it is preferably stepless or approximately infinitely change.
4. such as method in any one of the preceding claims wherein, it is characterised in that the control device (11)
Facilitate the disconnection of electric current in the following way：The control device (11) causes the transistor (8)
The low ohm and thus quickly electric discharge of input capacitance.
5. such as method in any one of the preceding claims wherein, it is characterised in that the control device (11)
The defeated of the transistor (8) is caused by the corresponding control of another transistor (12) of additional setting
Enter the electric discharge of electric capacity.
6. such as method in any one of the preceding claims wherein, it is characterised in that by bipolar transistor,
It is preferred that having the bipolar transistor or field-effect transistor, preferably of insulated gate electrode (IGBT)
Mos field effect transistor (MOSFET) is used as described another transistor (12).
7. such as method in any one of the preceding claims wherein, it is characterised in that by least one electrical heating
Element (16,17) is as ohm load (7).
8. such as method in any one of the preceding claims wherein, it is characterised in that by multiple electrical heating elements
(16,17) are as ohm load (7), wherein running an electrical heating elements (16) and energy first
It is enough that at least another electrical heating elements (17) are connected by corresponding switch (18) again in user side.
9. method as claimed in claim 7 or 8, it is characterised in that with least one electrical heating elements (16,
17) power of electric heater unit or electrothermal air air blower (19) is controlled.
10. such as method in any one of the preceding claims wherein, it is characterised in that infinitely or with
Many small step-lengths control power.
A kind of equipment of 11. Power Controls of ohm load (7) for being run with alternating voltage, its
It is characterised by, the equipment has rectifier, transistor (8) and control device (11), wherein institute
Control device (11) is stated by the resistance (10) of middle connection and the control terminal of the transistor (8)
Connection, wherein the control device (11) is configured to according to instruction parameter to connect the restricted steep of edge
Spend and disconnect the restricted steepness on edge to operate the transistor (8), wherein in the transistor (8)
Output end and the control terminal of the transistor (8) between capacitor (9), and the control are set
Device (11) is configured to：
Phase forward position control during according to instruction parameter pass through angle ahead of the curve when connect and
The mode disconnected in follow-up zero crossing operates the transistor (8),
Or disconnected when angle ahead of the curve is passed through according to instruction parameter during edge control after phase
And the mode connected in follow-up zero crossing operates the transistor (8),
And the equipment is especially constructed to for performing method according to any one of the preceding claims.
12. equipment as described in previous claim, it is characterised in that the transistor (8) is by structure
It is bipolar transistor, the bipolar transistor with insulated gate electrode (IGBT) to make, or field effect
Answer transistor, preferably mos field effect transistor (MOSFET).
13. equipment as described in claim 11 or 12, it is characterised in that the instruction parameter can
Change in user side, it is preferably stepless or approximately infinitely change.
14. equipment as any one of claim 11 to 13, it is characterised in that the control
Device (11) facilitates the disconnection of electric current in the following way：The control device (11) causes the crystal
Manage the low ohm and thus quickly electric discharge of the input capacitance of (8).
15. equipment as described in previous claim, it is characterised in that be additionally provided with another crystal
Pipe (12), and the control device (11) is configured to another crystal by the additional setting
The corresponding control for managing (12) is discharged come the input capacitance to the transistor (8).
16. equipment as described in previous claim, it is characterised in that described another transistor (12)
Bipolar transistor, the preferably bipolar transistor with insulated gate electrode (IGBT) are configured to,
Or field-effect transistor, preferred mos field effect transistor (MOSFET).
17. equipment as any one of claim 11 to 16, it is characterised in that described ohm
Load (7) is formed by least one electrical heating elements (16,17).
18. equipment as any one of claim 11 to 17, it is characterised in that described ohm
Load (7) is formed by multiple electrical heating elements (16,17), is provided with only running an electricity first and is added
Thermal element (16) and the switch (18) of at least another electrical heating elements (17) is connected again in user side.
19. equipment as described in claim 17 or 18, it is characterised in that the equipment is in order to corresponding
Power Control and be connected with electric heater unit or electrothermal air air blower (19) or be integrated in electricity plus
In thermal or electrothermal air air blower (19).
20. equipment as any one of claim 11 to 19, it is characterised in that the equipment
It is configured to stepless to control or with the output control device of many small step size controllings.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102015121283 | 2015-12-07 | ||
| DE102015121283.8 | 2015-12-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106843364A true CN106843364A (en) | 2017-06-13 |
Family
ID=59151769
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610163716.2A Pending CN106843364A (en) | 2015-12-07 | 2016-03-22 | The method and apparatus of the Power Control of electric ohm load for being run with alternating voltage |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106843364A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2032274U (en) * | 1987-11-04 | 1989-02-08 | 郭东方 | Temp.-controlling stepless speed governor |
| CN1687857A (en) * | 2005-04-18 | 2005-10-26 | 金丰电子(苏州)有限公司 | Low harmonic current power regulating method and apparatus |
| CN202050365U (en) * | 2011-02-28 | 2011-11-23 | 朱虹 | Single phase alternating current full-automatic noncontact voltage stabilizer |
| CN103280997A (en) * | 2013-05-22 | 2013-09-04 | 汕头大学 | Power-adjustable rectifying circuit |
| CN104536500A (en) * | 2015-01-28 | 2015-04-22 | 周芸 | Unidirectional silicon-controlled alternating-current voltage regulator |
-
2016
- 2016-03-22 CN CN201610163716.2A patent/CN106843364A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2032274U (en) * | 1987-11-04 | 1989-02-08 | 郭东方 | Temp.-controlling stepless speed governor |
| CN1687857A (en) * | 2005-04-18 | 2005-10-26 | 金丰电子(苏州)有限公司 | Low harmonic current power regulating method and apparatus |
| CN202050365U (en) * | 2011-02-28 | 2011-11-23 | 朱虹 | Single phase alternating current full-automatic noncontact voltage stabilizer |
| CN103280997A (en) * | 2013-05-22 | 2013-09-04 | 汕头大学 | Power-adjustable rectifying circuit |
| CN104536500A (en) * | 2015-01-28 | 2015-04-22 | 周芸 | Unidirectional silicon-controlled alternating-current voltage regulator |
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Application publication date: 20170613 |
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