CN106100501A - A kind of motor speed control circuit - Google Patents
A kind of motor speed control circuit Download PDFInfo
- Publication number
- CN106100501A CN106100501A CN201610571739.7A CN201610571739A CN106100501A CN 106100501 A CN106100501 A CN 106100501A CN 201610571739 A CN201610571739 A CN 201610571739A CN 106100501 A CN106100501 A CN 106100501A
- Authority
- CN
- China
- Prior art keywords
- circuit
- motor
- faradic current
- released
- speed governing
- 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.)
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P25/00—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details
- H02P25/16—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details characterised by the circuit arrangement or by the kind of wiring
Abstract
The invention discloses a kind of motor speed control circuit, including need speed governing motor, for detecting the electrical network zero cross detection circuit of line voltage zero cross signal, Pulse Width Control on-off circuit, the first rectification circuit and the second rectification circuit, the first motor faradic current releases on-off circuit and the second motor faradic current is released on-off circuit；Arbitrary input of described electrical network zero cross detection circuit and supply network connects, Pulse Width Control on-off circuit and need the motor of speed governing to be connected between electrical network two line, first motor faradic current is released and is parallel to need the motor two ends of speed governing, the second motor faradic current to release after on-off circuit and the series connection of the second rectification circuit to be parallel to need the motor two ends of speed governing after on-off circuit and the series connection of the first rectification circuit.The motor speed control circuit of the present invention efficiently solves alternating current generator current drain problem during stepless speed regulation and EMI problem.
Description
Technical field
The present invention relates to electric machine speed regulation technical field, be specifically related to a kind of motor speed control circuit.
Background technology
Current motor speed control circuit motor speed control circuit as disclosed in the patent of Patent No. CN201010560552.X,
Its ultimate principle is: by " single phase ac electric switch circuit " PWM, the voltage at motor two ends is carried out speed-sensitive switch, with
Just regulating the average voltage at motor two ends, reach the purpose of stepless speed regulation, motor inductance current leadage circuit is to motor
Electric current is released.
What the bleed-off circuit in patent was implemented is to utilize audion that motor is carried out faradic current to release, high pressure three therein
Pipe cost of releasing in pole is high, and audion has a base stage from platform voltage dead band, causes EMI(electromagnetic interference) problem is serious.
Summary of the invention
Present invention aim to address alternating current generator problem of releasing during stepless speed regulation and EMI(electromagnetic interference) ask
Topic.
Four kinds of different technical schemes that the present invention uses are:
Scheme 1: a kind of motor speed control circuit: include needing the motor of speed governing, for detecting the electrical network of line voltage zero cross signal
Zero cross detection circuit, Pulse Width Control on-off circuit, the first rectification circuit and the second rectification circuit, the first motor faradic current are released
On-off circuit and the second motor faradic current are released on-off circuit；Described electrical network zero cross detection circuit and supply network arbitrary defeated
Entering end to connect, Pulse Width Control on-off circuit is linked on power supply grid with the motor series connection needing speed governing, the first motor faradism
Flowing the motor two ends being parallel to need speed governing after putting on-off circuit and the series connection of the first rectification circuit, the second motor faradism flows
It is parallel to need the motor two ends of speed governing after putting on-off circuit and the series connection of the second rectification circuit.
Scheme 2: a kind of motor speed control circuit: include needing the motor of speed governing, for detecting line voltage zero cross signal
Electrical network zero cross detection circuit, Pulse Width Control on-off circuit, the first rectification circuit and the second rectification circuit, the first motor faradic current
Release on-off circuit and the second motor faradic current is released on-off circuit；Described Pulse Width Control on-off circuit and the electricity needing speed governing
Machine sequential series in no particular order is linked on power supply grid, needs the motor of speed governing to be arranged on live wire or the zero line of power supply grid
On.
Scheme 3: a kind of motor speed control circuit: include needing the motor of speed governing, for detecting line voltage zero cross signal
Electrical network zero cross detection circuit, Pulse Width Control on-off circuit, the first rectification circuit and the second rectification circuit, the first motor faradic current
Release on-off circuit and the second motor faradic current is released on-off circuit；Described electrical network zero cross detection circuit and the live wire of electrical network or
Arbitrary input of both zero lines connects.
Scheme 4: a kind of motor speed control circuit: include needing the motor of speed governing, for detecting line voltage zero cross signal
Electrical network zero cross detection circuit, Pulse Width Control on-off circuit, the first rectification circuit and the second rectification circuit, the first motor faradic current
Release on-off circuit and the second motor faradic current is released on-off circuit；Described first motor faradic current release on-off circuit and
Being parallel to need the motor two ends of speed governing after first rectification circuit sequential series in no particular order, the second motor faradic current is released out
It is parallel to need the motor two ends of speed governing after closing circuit and the second rectification circuit sequential series in no particular order.
In technique scheme, can be in conjunction with following the most perfect as scheme.
Further, described first rectification circuit and the second rectification circuit are commutation diode or rectifier cell.
Further, described Pulse Width Control on-off circuit, the first motor faradic current are released on-off circuit, the second motor
Faradic current on-off circuit of releasing is the electrical switch that can control.
Further, described Pulse Width Control on-off circuit, the first motor faradic current are released on-off circuit, the second motor
Faradic current release on-off circuit be controllable silicon or OS pipe or the switching device of photoelectrical coupler quasiconductor.
Advantages of the present invention:
The motor speed control circuit of the present invention efficiently solves alternating current generator current drain problem during stepless speed regulation and EMI
Problem.
In addition to objects, features and advantages described above, the present invention also has other objects, features and advantages.
Below with reference to figure, the present invention is further detailed explanation.
Accompanying drawing explanation
The accompanying drawing of the part constituting the application is used for providing a further understanding of the present invention, and the present invention's is schematic real
Execute example and illustrate for explaining the present invention, being not intended that inappropriate limitation of the present invention.
Fig. 1 is that the principle frame of the embodiment of the present invention 1 is intended to.
Fig. 2 is that the principle frame of the embodiment of the present invention 2 is intended to.
Fig. 3 is that the principle frame of the embodiment of the present invention 3 is intended to.
Fig. 4 is that the principle frame of the embodiment of the present invention 4 is intended to.
Fig. 5 is the schematic diagram of the embodiment of the present invention 1.
Fig. 6 is the zero cross signal oscillogram of the electrical network Super-zero control circuit of the embodiment of the present invention 1.
In accompanying drawing, A end line is the live wire of power supply grid, and B end line is the zero line of power supply grid.
Detailed description of the invention
In order to make the purpose of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, right
The present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, not
For limiting the present invention.
Embodiment 1:
With reference to Fig. 1, a kind of motor speed control circuit of first embodiment of the invention as shown in Figure 1, including the motor needing speed governing
M, for detecting the electrical network zero cross detection circuit T1 of line voltage zero cross signal, Pulse Width Control on-off circuit K1, the first rectified current
Road D1 and the second rectification circuit D2, the first motor faradic current release on-off circuit K2 and the second motor faradic current is released switch
Circuit K3；Arbitrary input of described electrical network zero cross detection circuit T1 and supply network connects, Pulse Width Control on-off circuit K1 and
The motor M needing speed governing is connected between electrical network two line, and the first motor faradic current is released on-off circuit K2 and the first rectified current
The motor M two ends of speed governing, the second motor faradic current it are parallel to need to release on-off circuit K3 and the second rectification after road D1 series connection
It is parallel to need the motor M two ends of speed governing after circuit D2 series connection.
It is commutation diode or rectifier cell with reference to Fig. 5, described first rectification circuit D1 and the second rectification circuit D2.
Described Pulse Width Control on-off circuit K1, the first motor faradic current are released on-off circuit K2, the second motor faradism
Flow and put on-off circuit K3 and be the electrical switch that can control.
Described Pulse Width Control on-off circuit K1, the first motor faradic current are released on-off circuit K2, the second motor faradism
Flowing and putting on-off circuit K3 is controllable silicon or metal-oxide-semiconductor or the switching device of photoelectrical coupler quasiconductor.
Ultimate principle: Pulse Width Control on-off circuit K1 can with high-speed pulse on-off control, by K1 speed-sensitive switch frequency or
Duty cycle of switching provides an adjustable average voltage to motor, thus realizes motor stepless speed regulation.K2 and K3 is respectively at electrical network
Positive half-wave and negative half-wave close and release to the faradic current of motor, electrical network zero cross detection circuit T1 to K2/K3 provide just
Half-wave and the switching signal of negative half-wave.
AB is alternating current power supply input line, and the most any one of AB is connected with electrical network zero cross detection circuit, and K1 can be placed on electricity
The B line of net can also be placed on A line.
In embodiment 1, during electric machine speed regulation, K1 speed-sensitive switch regulates its dutycycle.
The zero cross signal of electrical network Super-zero control circuit as shown in Figure 6, when zero cross signal occur 0 to 1 upset time, disconnect K2,
Guan Bi K3.When zero cross signal occurs 1 to 0 upset, Guan Bi K2 to disconnect K3, so circulate.
Embodiment 2:
With reference to Fig. 2, the motor speed control circuit of second embodiment of the invention, including needing the motor M of speed governing, for detecting electrical network electricity
Press through the electrical network zero cross detection circuit T1 of zero-signal, Pulse Width Control on-off circuit K1, the first rectification circuit D1 and the second rectified current
Road D2, the first motor faradic current release on-off circuit K2 and the second motor faradic current is released on-off circuit K3；Described pulse
Control on-off circuit K1 and need the motor M of speed governing to access after connecting between two lines of electrical network, needing motor M and the pulse of speed governing
Control on-off circuit K1 series connection and there is no sequencing, need the motor M of speed governing to be arranged on the live wire AA or zero line B of power supply grid
On.
Period, the first rectification circuit D1 and the second rectification circuit D2 are commutation diode or rectifier cell.
Release on-off circuit K2, the second motor faradism of Pulse Width Control on-off circuit K1, the first motor faradic current flows
Put on-off circuit K3 and be the electrical switch that can control.
Release on-off circuit K2, the second motor faradism of Pulse Width Control on-off circuit K1, the first motor faradic current flows
Putting on-off circuit K3 is controllable silicon or metal-oxide-semiconductor or the switching device of photoelectrical coupler quasiconductor.
The operation principle of the present embodiment, basically identical with the operation principle of embodiment 1, if any difference, can refer to this
Shown by the structure of the circuit of embodiment, do not repeat them here.
Embodiment 3:
With reference to Fig. 3, the motor speed control circuit of third embodiment of the invention, including needing the motor M of speed governing, for detecting electrical network electricity
Press through the electrical network zero cross detection circuit T1 of zero-signal, Pulse Width Control on-off circuit K1, the first rectification circuit D1 and the second rectified current
Road D2, the first motor faradic current release on-off circuit K2 and the second motor faradic current is released on-off circuit K3；Described electrical network
Arbitrary input of the live wire A or zero line B of zero cross detection circuit T1 and electrical network connects.
Period, the first rectification circuit D1 and the second rectification circuit D2 are commutation diode or rectifier cell.
Release on-off circuit K2, the second motor faradism of Pulse Width Control on-off circuit K1, the first motor faradic current flows
Put on-off circuit K3 and be the electrical switch that can control.
Release on-off circuit K2, the second motor faradism of Pulse Width Control on-off circuit K1, the first motor faradic current flows
Putting on-off circuit K3 is controllable silicon or metal-oxide-semiconductor or the switching device of photoelectrical coupler quasiconductor.
The operation principle of the present embodiment, basically identical with the operation principle of embodiment 1, if any difference, can refer to this
Shown by the structure of the circuit of embodiment, do not repeat them here.
Embodiment 4:
With reference to Fig. 4, the motor speed control circuit of fourth embodiment of the invention, including needing the motor M of speed governing, for detecting electrical network electricity
Press through the electrical network zero cross detection circuit T1 of zero-signal, Pulse Width Control on-off circuit K1, the first rectification circuit D1 and the second rectified current
Road D2, the first motor faradic current release on-off circuit K2 and the second motor faradic current is released on-off circuit K3；Described first
Motor faradic current is released and is parallel to need speed governing after on-off circuit K2 and the first rectification circuit D1 sequential series in no particular order
Motor M two ends, the second motor faradic current is released after on-off circuit K3 and the second rectification circuit D2 sequential series in no particular order also
It is coupled to need the motor M two ends of speed governing.
Period, the first rectification circuit D1 and the second rectification circuit D2 are commutation diode or rectifier cell.
Release on-off circuit K2, the second motor faradism of Pulse Width Control on-off circuit K1, the first motor faradic current flows
Put on-off circuit K3 and be the electrical switch that can control.
Release on-off circuit K2, the second motor faradism of Pulse Width Control on-off circuit K1, the first motor faradic current flows
Putting on-off circuit K3 is controllable silicon or metal-oxide-semiconductor or the switching device of photoelectrical coupler quasiconductor.
The operation principle of the present embodiment, basically identical with the operation principle of embodiment 1, if any difference, can refer to this
Shown by the structure of the circuit of embodiment, do not repeat them here.
The motor speed control circuit of the present invention efficiently solves alternating current generator current drain problem during stepless speed regulation
With EMI problem.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all spirit in the present invention and
Within principle, any modification, equivalent substitution and improvement etc. made, should be included within the scope of the present invention.
Claims (7)
1. a motor speed control circuit, it is characterised in that: include needing the motor (M) of speed governing, being used for detecting line voltage zero passage
The electrical network zero cross detection circuit (T1) of signal, Pulse Width Control on-off circuit (K1), the first rectification circuit (D1) and the second rectified current
On-off circuit (K2) is released on road (D2), the first motor faradic current and the second motor faradic current is released on-off circuit (K3)；Institute
State electrical network zero cross detection circuit (T1) and supply network arbitrary input connect, Pulse Width Control on-off circuit (K1) and need tune
Motor (M) series connection of speed is linked on power supply grid, and the first motor faradic current is released on-off circuit (K2) and the first rectified current
Motor (M) two ends of speed governing, the second motor faradic current it are parallel to need to release on-off circuit (K3) and the after the series connection of road (D1)
It is parallel to need motor (M) two ends of speed governing after two rectification circuits (D2) series connection.
2. a motor speed control circuit, it is characterised in that: include needing the motor (M) of speed governing, being used for detecting line voltage zero passage
The electrical network zero cross detection circuit (T1) of signal, Pulse Width Control on-off circuit (K1), the first rectification circuit (D1) and the second rectified current
On-off circuit (K2) is released on road (D2), the first motor faradic current and the second motor faradic current is released on-off circuit (K3)；Institute
State Pulse Width Control on-off circuit (K1) and need motor (M) sequential series in no particular order of speed governing to be linked on power supply grid, needing
The motor (M) wanting speed governing is arranged on live wire (A) or the zero line (B) of power supply grid.
3. a motor speed control circuit, it is characterised in that: include needing the motor (M) of speed governing, being used for detecting line voltage zero passage
The electrical network zero cross detection circuit (T1) of signal, Pulse Width Control on-off circuit (K1), the first rectification circuit (D1) and the second rectified current
On-off circuit (K2) is released on road (D2), the first motor faradic current and the second motor faradic current is released on-off circuit (K3)；Institute
Live wire (A) or both the arbitrary inputs of zero line (B) of stating electrical network zero cross detection circuit (T1) and electrical network connect.
4. a motor speed control circuit, it is characterised in that: include needing the motor (M) of speed governing, being used for detecting line voltage zero passage
The electrical network zero cross detection circuit (T1) of signal, Pulse Width Control on-off circuit (K1), the first rectification circuit (D1) and the second rectified current
On-off circuit (K2) is released on road (D2), the first motor faradic current and the second motor faradic current is released on-off circuit (K3)；Institute
State the first motor faradic current to release and be parallel to after on-off circuit (K2) and the first rectification circuit (D1) sequential series in no particular order
Need motor (M) two ends of speed governing, the second motor faradic current release on-off circuit (K3) and the second rectification circuit (D2) regardless of
It is parallel to need motor (M) two ends of speed governing after sequencing series connection.
5. according to the motor speed control circuit described in Claims 1-4 any claim, it is characterised in that: described first rectification
Circuit (D1) and the second rectification circuit (D2) are commutation diode or rectifier cell.
6. according to the motor speed control circuit described in Claims 1-4 any claim, it is characterised in that: described Pulse Width Control
Release on-off circuit (K2), the second motor faradic current of on-off circuit (K1), the first motor faradic current is released on-off circuit
(K3) electrical switch that can control it is.
7. according to the motor speed control circuit described in Claims 1-4 any claim, it is characterised in that: described Pulse Width Control
Release on-off circuit (K2), the second motor faradic current of on-off circuit (K1), the first motor faradic current is released on-off circuit
(K3) it is controllable silicon or metal-oxide-semiconductor or the switching device of photoelectrical coupler quasiconductor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610571739.7A CN106100501A (en) | 2016-07-20 | 2016-07-20 | A kind of motor speed control circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610571739.7A CN106100501A (en) | 2016-07-20 | 2016-07-20 | A kind of motor speed control circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106100501A true CN106100501A (en) | 2016-11-09 |
Family
ID=57220958
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610571739.7A Pending CN106100501A (en) | 2016-07-20 | 2016-07-20 | A kind of motor speed control circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106100501A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117674644A (en) * | 2024-02-02 | 2024-03-08 | 深圳斯诺凡科技有限公司 | Two-wire speed-regulating DC brushless motor and control circuit and control method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102045022A (en) * | 2009-11-16 | 2011-05-04 | 孙宏斌 | Stepless speed regulating circuit of single-phase alternating-current motor |
| CN102281032A (en) * | 2010-06-10 | 2011-12-14 | 高玉琴 | Speed regulator for single-phase motor |
| CN102638114A (en) * | 2012-04-24 | 2012-08-15 | 深圳市深泰明科技有限公司 | Power supply device of current transformer |
| CN206023643U (en) * | 2016-07-20 | 2017-03-15 | 佛山市顺德区瀚铭电子科技有限公司 | A kind of motor speed control circuit |
-
2016
- 2016-07-20 CN CN201610571739.7A patent/CN106100501A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102045022A (en) * | 2009-11-16 | 2011-05-04 | 孙宏斌 | Stepless speed regulating circuit of single-phase alternating-current motor |
| CN102281032A (en) * | 2010-06-10 | 2011-12-14 | 高玉琴 | Speed regulator for single-phase motor |
| CN102638114A (en) * | 2012-04-24 | 2012-08-15 | 深圳市深泰明科技有限公司 | Power supply device of current transformer |
| CN206023643U (en) * | 2016-07-20 | 2017-03-15 | 佛山市顺德区瀚铭电子科技有限公司 | A kind of motor speed control circuit |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117674644A (en) * | 2024-02-02 | 2024-03-08 | 深圳斯诺凡科技有限公司 | Two-wire speed-regulating DC brushless motor and control circuit and control method thereof |
| CN117674644B (en) * | 2024-02-02 | 2024-04-19 | 深圳斯诺凡科技有限公司 | Two-wire speed-regulating DC brushless motor and control circuit and control method thereof |
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| PB01 | Publication | ||
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Application publication date: 20161109 |