CN1449107A - AC/DC double-purpose motor control device - Google Patents
AC/DC double-purpose motor control device Download PDFInfo
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- CN1449107A CN1449107A CN02108442A CN02108442A CN1449107A CN 1449107 A CN1449107 A CN 1449107A CN 02108442 A CN02108442 A CN 02108442A CN 02108442 A CN02108442 A CN 02108442A CN 1449107 A CN1449107 A CN 1449107A
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Abstract
The two-purpose AC/DC motor controller includes AC/DC converting unit, voltage stabilizing unit, phase detecting and controlling unit and high-voltage driving unit. The AC/DC converting unit accepts AC voltage and converts it into high DC voltage, the voltage stabilizing unit converts the high DC voltage into low DC voltage, the phase detecting and controlling unit detects the polarity of the winding in motor to output one first or one second signal and turns off power source in case the motor is locked, and the high-voltage driving unit drives the motor based on the two signals. The present invention makes it possible to raise the rotation speed of AC fan without being limited by the frequency of the AC power supply, lower the start voltage of motor and provide power-off protection for locked motor and automatic starting.
Description
[technical field]
The present invention relates to a kind of controller for motor, particularly a kind of AC/DC double-purpose motor control device.
[background technology]
The conventional AC fan be with AC power as working power, form induced field by stator or rotor coil winding, make motor running.Yet, because of motor rotary speed is directly proportional with the frequency of AC power, so it is too low and can't improve the rotating speed of alternating current motor to be subject to ac power frequency.In the occasion of the high air quantity of some particular needs,, the motor of said fans can't improve its rotating speed because of using AC power.
If will use alternating current motor to obtain high air quantity, need to use a plurality of groups of motors traditionally to reach big air quantity output.Another practice is the number of poles winding in the motor of increasing exchanges, and makes rotation speed of the fan improve and increases the output of air quantity.Therefore and do not meet economic benefit yet the practice that increases the number of poles winding not only increases the difficulty that coil is reeled, and also can increase the manufacturing cost of motor, and the volume of motor also can increase.
Again, alternating current motor is except above-mentioned shortcoming, and because of it cooperates the use of AC power, its coil can be according to the continuous alternation of power supply, and makes the coil of fan be in exchange status always.And the formula of alternating current motor operating current is:
I=V/Z (1) wherein, I is the alternating current motor operating current, V is a supply voltage, Z is a coil impedance.By formula (1) as can be known, coil impedance value Z is:
Wherein, XL is that coil exchanges the induction reactance value.Therefore work as motor coil and need just can make coil produce enough startup torsion by enough electric currents by static to turning round, the electric current varies directly with the voltage again, so the starting resistor of motor is also quite high, makes alternating current motor low pressure characteristic be on duty mutually.Moreover when conventional motor was pinned, because of there is no power-off protection apparatus, it was too high and burn what is heard is also often arranged to cause temperature rise.
Hereat, no matter the alternating current motor of fan employing at present is that rotating speed, startup method, protective device and manufacturing cost all are subject to AC power, can't break through above-mentioned shortcoming.
[summary of the invention]
In view of this, the object of the present invention is to provide a kind of controller for motor that uses AC power and can effectively improve the fan motor rotating speed.
For realizing this purpose, the present invention proposes a kind of AC/DC double-purpose motor control device, this device is used for d.c. motor, and motor comprises a plurality of coils, and controller for motor comprises that AC/DC converting unit, voltage regulation unit, phase place detect and control unit and high drive unit.The AC/DC converting unit receives AC power, in order to AC power is converted to high-voltage dc voltage.Voltage regulation unit is coupled to the AC/DC converting unit, in order to receive high-voltage dc voltage and to convert it to low-voltage dc voltage.Phase place detects and control unit and motor and voltage regulation unit couple, and in order to receiving low-voltage dc voltage with as working power, and detects the polarity of permanent magnet, exports first according to this and detects signal and second and detect signal, and power-off protection is provided when motor pins.High drive unit and AC/DC converting unit, phase place detect and control unit and motor couple, receive high-voltage dc voltage with as working power, and receive first and detect signal and second and detect signal, export first drive signal and second drive signal according to this with CD-ROM drive motor.
The invention has the beneficial effects as follows: one, with the alternating current motor structure in the dc motor structure replacement fan, and by circuit design motor is run up under the ac power supply state, the influence that the old friend flows supply frequency can not limit its rotating speed.Two, between on-stream period, coil is by its working power of direct current power supply by static for motor, so coil impedance has lacked the resistance value of XL when the AC power state operates down, so can start in low-voltage smoothly.Three, from the circuit of present embodiment as can be known the present invention's control unit can to make output valve O1 when fan pins be high potential, output valve O2 is an electronegative potential, therefore can make the motor outage, prevent that temperature rise is too high, simultaneously, but if receive also normal operation of DC power supply, so the present invention is the controller for motor of AC/DC, increases the elasticity of using.
For the present invention's above-mentioned purpose, technical scheme and advantage can be become apparent, a preferred embodiment cited below particularly, and in conjunction with the accompanying drawings, be described in detail below.
[description of drawings]
Fig. 1 illustrates the calcspar according to a kind of AC/DC double-purpose motor control device of a preferred embodiment of the present invention.
Fig. 2 illustrates and is the routine circuit diagram of one of AC/DC converting unit.
Fig. 3 illustrates and is the routine circuit diagram of one of voltage stabilizing circuit.
Fig. 4 illustrates to phase place and detects and the routine circuit diagram of one of control unit.
Fig. 5 illustrates and is the routine circuit diagram in one of high drive unit.The number in the figure explanation
100: AC/DC double-purpose motor control device
110: the AC/DC converting unit
120: voltage regulation unit
130: phase place detects and control unit
140: the high drive unit
150: motor
410: the Hall perception component
420: amplifier module
430: inverter
440: control unit
[embodiment]
Please refer to Fig. 1, it illustrates the calcspar according to a kind of AC/DC double-purpose motor control device of a preferred embodiment of the present invention.AC/DC double-purpose motor control device 100 receives AC power AC and CD-ROM drive motor 150 according to this.Motor 150 comprises permanent magnet, coil L1 and coil L2.AC/DC double-purpose motor control device 100 comprises AC/DC converting unit 110, voltage regulation unit 120, phase place detects and control unit 130 and high drive unit 140.AC/DC converting unit 110 receives AC power AC, in order to AC power AC is converted to high-voltage dc voltage V1.Voltage regulation unit 120 is coupled to AC/DC converting unit 110, in order to receive high-voltage dc voltage V1 and to convert it to low-voltage dc voltage V2.Phase place detects and control unit 130 couples with motor 150 and voltage regulation unit 120, in order to receiving low-voltage dc voltage V2 with as working power, and detect the polar signal P of permanent magnet, and output according to this detects signal H1 and detects signal H2.High drive unit 140 detects with AC/DC converting unit 110, phase place and control unit 130 and motor 150 couple, receive high-voltage dc voltage V1 with as working power, and receive detect signal H1 with detect signal H2 and according to this output drive signal to drive rotor coil L1 and L2.
AC/DC converting unit 110 can be a full-wave rectifier or a half-wave rectifier, is the example explanation with the full-wave rectifier at this.Please refer to Fig. 2, it illustrates the circuit diagram into one of AC/DC converting unit 110 embodiment.AC/DC converting unit 110 comprises diode D1, D2, D3, D4, resistance R 1 and capacitor C 1, and each assembly annexation as shown in FIG..Node A and B are coupled to AC power AC two ends, and the voltage of node N is the high-voltage dc voltage V1 of output.AC power AC promptly is converted to high-voltage dc voltage V1 and output after diode D1, D2, D3, D4 and capacitor C 1 rectification.
Please refer to Fig. 3, it illustrates the circuit diagram into one of voltage regulation unit 120 embodiment.Voltage regulation unit 120 comprises dropping resistor R2, voltage stabilizing didoe D5 and electric capacity of voltage regulation C2.Dropping resistor R2 and AC/DC converting unit 110 couple, and the one termination is received high-voltage dc voltage V1, in order to a pressure drop to be provided.The other end of electric capacity of voltage regulation C2 and dropping resistor R2 couples, and voltage stabilizing didoe D5 is in parallel with electric capacity of voltage regulation C2.The cross-pressure of electric capacity of voltage regulation C2 is low-voltage dc voltage V2.
Please refer to Fig. 4, it illustrates to phase place and detects and the circuit diagram of one of control unit 130 embodiment.Phase place detects and control unit 130 comprises that resistance R 3, Hall (Hall) detect assembly 410, amplifier module 420, control unit 440, inverter 430, transistor Q1 and Q2.Hall detects assembly 410 receiving polarity signal P, in order to detecting the change in polarity of permanent magnet, and the output hall signal.Amplifier module 420 detects assembly 410 with Hall and couples, and receives hall signal, amplifies back output amplifying signal.Comprise detecting of motor deadlock and protective circuit in the control unit 440, when motor pinned, control unit 440 was promptly exported halt signal, and when motor ran well, control unit 440 was promptly exported the amplifying signal that is received.Inverter 430, transistor Q1 and Q2 form a small-power driven unit, small-power driven unit and control unit 440 couple, and output detects signal H1 and detects signal H2, when motor pins, detecting signal H1 is electronegative potential with detecting signal H2, promptly presents off-position.Control unit 440 more comprises a motor rotary speed control circuit, can receive temperature, voltage, frequency or the pulse wave signal of extraneous input, to adjust motor rotary speed.
Please refer to Fig. 5, it illustrates the circuit diagram into one of high drive unit 140 embodiment.High drive unit 140 comprises the first electric current amplifier module and the second electric current amplifier module, receives respectively to detect signal H1 and detect signal H2 and amplify, with difference drive coil L1 and coil L2.The first electric current amplifier module comprises resistance R 6, transistor Q3, voltage-controlled transistor Q4 and capacitor C 3; The second electric current amplifier module comprises resistance R 7, transistor Q5, voltage-controlled transistor Q6 and capacitor C 4, and its annexation as shown in FIG..Wherein, voltage-controlled transistor Q4 and Q6 can be the metal-oxide semiconductor transistor, the back electromotive force that capacitor C 3 and C4 are produced when eliminating coil L1 and L2 reverse.
The above for a preferred embodiment of the present invention's controller for motor the structure annexation, now in conjunction with the accompanying drawings, further describe the course of action of its circuit: AC power AC and change the wavy high-voltage dc voltage V1 of the company of being converted to behind the unit 110 through AC/DC, and with the voltage regulation unit 120 and the high drive unit 140 of high-voltage dc voltage V1 feed-in next stage.High-voltage dc voltage V1 is through promptly being converted to low-voltage dc voltage V2 behind the voltage regulation unit 120, to detect as phase place and the operating voltage of control unit 130.Phase place detects and the Hall of control unit 130 detects assembly 410 when the reversal that detects permanent magnet, and the hall signal of output is amplifying signal after amplifier module 420 amplifies.Amplifying signal feed-in control unit 440, when motor 150 runs well, the output valve O1 of control unit 440 and O2 equal the amplifying signal that control unit 440 is received, when motor 150 pins, promptly export halt signal to cut off the power supply of motor, just its output valve O1 is a high potential, output valve O2 is an electronegative potential, so under the normal condition, can make transistor Q1 and Q2 take turns conducting, and then turn-on transistor Q3, Q5 and voltage-controlled transistor Q4, Q6, so that coil L1, L2 obtain enough driving powers, make motor 150 produce torsion and rotate.
Claims (13)
1. an AC/DC double-purpose motor control device is used for a motor, it is characterized in that: this motor comprises a permanent magnet, one first coil and one second coil, and this controller for motor comprises:
One AC/DC converting unit receives an AC power, in order to this AC power is converted to a high-voltage dc voltage;
One voltage regulation unit is coupled to this AC/DC converting unit, in order to receive this high-voltage dc voltage and to convert it to a low-voltage dc voltage;
One phase place detects and control unit, couple with this motor and this voltage regulation unit, in order to receiving this low-voltage dc voltage with as working power, and detect this motor this permanent magnet polarity and export one first according to this and detect signal and one second and detect signal; And
One high drive unit, detect with this AC/DC converting unit, this phase place and control unit and this motor couple, receive this high-voltage dc voltage with as working power, and receive this first detect signal and this second detect signal and export one first drive signal according to this and one second drive signal to drive this first coil and this second coil respectively.
2. controller for motor according to claim 1 is characterized in that: wherein this phase place detects and control unit comprises:
One Hall detects assembly, couples with this motor, in order to detecting the change in polarity of this permanent magnet, and exports a hall signal;
One amplifier module couples with this Hall perception component, receives this hall signal, amplifies back output one amplifying signal; And
One small-power driven unit couples with this amplifier module, receives this amplifying signal and export this according to this first to detect signal and this second and detect signal.
3. controller for motor according to claim 2; it is characterized in that: this phase place detects and control unit also comprises a control unit; this control unit is between this amplifier module and this small-power driven unit; this control unit includes detecting of motor deadlock and protective circuit; when this motor runs well; this control unit is exported this amplifying signal to this small-power driven unit; when this motor pins; this control unit is exported a halt signal to this small-power driven unit, to stop to drive this motor.
4. controller for motor according to claim 3, it is characterized in that: wherein this control unit is exported one first value and one second value, when this motor runs well, this first value and this second value equal this amplifying signal, when this motor pins, this first value is high potential, and this second value is electronegative potential.
5. controller for motor according to claim 4 is characterized in that: when this small-power driven unit received this halt signal, this first detected signal and this second to detect signal is electronegative potential.
6. controller for motor according to claim 3, it is characterized in that: this control unit also comprises a motor rotary speed control circuit, this motor rotary speed control circuit can be accepted temperature, voltage, frequency or the pulse wave signal of extraneous input, in order to adjust motor rotary speed.
7. will show 2 described controller for motor according to right, it is characterized in that: this small-power driven unit comprises:
One inverter couples with this amplifier module, receives this amplifying signal and exports an inversion signal;
One the first transistor, its base stage and this inverter couple, and receiving this inversion signal, the collector electrode of this first transistor is exported this and first is detected signal; And
One transistor seconds, its base stage and this amplifier module couple, and its collector electrode is exported this and second is detected signal.
8. controller for motor according to claim 1 is characterized in that: wherein this voltage regulation unit comprises:
One dropping resistor couples with this AC/DC converting unit, and an end of this dropping resistor is in order to receive this high-voltage dc voltage, and the voltage of the other end is this low-voltage dc voltage;
One electric capacity of voltage regulation couples with the other end of this dropping resistor; And
One voltage stabilizing didoe couples with the other end of this dropping resistor.
9. controller for motor according to claim 1 is characterized in that: wherein this AC/DC converting unit comprises a full-wave rectifier.
10. controller for motor according to claim 1 is characterized in that: wherein this AC/DC converting unit comprises a half-wave rectifier.
11. controller for motor according to claim 1 is characterized in that: wherein this high drive unit comprises:
One first electric current amplifier module first detects signal in order to receive this, amplifies back this first drive signal of output to drive this first coil; And
One second electric current amplifier module second detects signal in order to receive this, amplifies back this second drive signal of output to drive this second coil.
12. controller for motor according to claim 11 is characterized in that: wherein this first electric current amplifier module comprises:
One the 3rd transistor receives this and first detects signal; And
One voltage-controlled transistor couples with this first coil of the 3rd transistor AND gate, in order to export this first drive signal.
13. controller for motor according to claim 11 is characterized in that: wherein this second electric current amplifier module comprises:
One the 4th transistor receives this and second detects signal; And
One voltage-controlled transistor couples with this second coil of the 4th transistor AND gate, in order to export this second drive signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021084424A CN1203609C (en) | 2002-03-29 | 2002-03-29 | AC/DC double-purpose motor control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021084424A CN1203609C (en) | 2002-03-29 | 2002-03-29 | AC/DC double-purpose motor control device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1449107A true CN1449107A (en) | 2003-10-15 |
| CN1203609C CN1203609C (en) | 2005-05-25 |
Family
ID=28680267
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB021084424A Expired - Lifetime CN1203609C (en) | 2002-03-29 | 2002-03-29 | AC/DC double-purpose motor control device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1203609C (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1324799C (en) * | 2004-06-03 | 2007-07-04 | 旺玖科技股份有限公司 | Low-noise DC motor drive chip |
| CN102297148A (en) * | 2011-08-23 | 2011-12-28 | 广东金莱特电器股份有限公司 | Fan control circuit for prolonging service life of direct current carbon brush motor of fan |
| CN105827045A (en) * | 2015-01-06 | 2016-08-03 | 镇江汇龙电器有限公司 | EC dual-winding DC brushless motor |
-
2002
- 2002-03-29 CN CNB021084424A patent/CN1203609C/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1324799C (en) * | 2004-06-03 | 2007-07-04 | 旺玖科技股份有限公司 | Low-noise DC motor drive chip |
| CN102297148A (en) * | 2011-08-23 | 2011-12-28 | 广东金莱特电器股份有限公司 | Fan control circuit for prolonging service life of direct current carbon brush motor of fan |
| CN102297148B (en) * | 2011-08-23 | 2012-11-28 | 广东金莱特电器股份有限公司 | Fan control circuit for prolonging service life of direct current carbon brush motor of fan |
| CN105827045A (en) * | 2015-01-06 | 2016-08-03 | 镇江汇龙电器有限公司 | EC dual-winding DC brushless motor |
| CN105827045B (en) * | 2015-01-06 | 2018-09-04 | 江苏汇创机电科技股份有限公司 | EC double-winding dc. brushless motors |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1203609C (en) | 2005-05-25 |
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Granted publication date: 20050525 |