CN101841287B - Modulated delay time control system for motor - Google Patents
Modulated delay time control system for motor Download PDFInfo
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- CN101841287B CN101841287B CN2009101271724A CN200910127172A CN101841287B CN 101841287 B CN101841287 B CN 101841287B CN 2009101271724 A CN2009101271724 A CN 2009101271724A CN 200910127172 A CN200910127172 A CN 200910127172A CN 101841287 B CN101841287 B CN 101841287B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Abstract
The invention relates to a modulated delay time control system for a motor. The control system comprises a control unit, a driving unit and the motor. The control unit is used for outputting at least one control signal according to at least one setting signal, wherein the control signal has the modulated delay time; the driving unit is connected with the control unit and is used for receiving the control signal and generating a driving signal; and the motor is connected with the driving unit and is used for controlling the switch-on time of the motor according to the driving signal and the modulated delay time. By using the modulated delay time control system, the delay time of the control signal can be modulated, the motor works in preferable efficiency, such as reduced current value, and the modulated delay time can be adjusted according to the set signal. Therefore, the motor can work in preferable efficiency under different operation states so as to improve the overall efficiency of the motor.
Description
Technical field
The present invention relates to a kind of motor control system, in detail, relate to a kind of modulated delay time control system for motor.
Background technology
In the motor control system of routine, for the motor of some fixed rotating speed, sensing element can be arranged on the fixed position, so that motor is with preferred efficient work.Yet for the motor with multisection type rotating speed, the sensing element of described fixed position can't make the motor all can be with preferred efficient work under each rotating speed.In addition, in order to make commutation smoothly, the transistorized control signal of part can be postponed the set time, fix described time of delay, therefore also can't make the motor of multisection type rotating speed all can be with preferred efficient work under different rotating speeds.
Moreover, because the various modes of operation (different temperatures or different voltages etc.) that operate sometimes of motor, can not make therefore fixing described time of delay the motor all can be with preferred efficient work under different modes of operation.
Therefore, be necessary to provide a kind of modulated delay time control system that is used for motor of innovating and having progressive to solve the problems referred to above.
Summary of the invention
The invention provides a kind of modulated delay time control system for motor, it comprises: control unit, driver element and motor.Described control unit is exported at least one control signal in order to according at least one setting signal, but described control signal has modulation risetime.Described driver element is connected to described control unit, in order to receive described control signal, produces and drives signal.Described motor is connected to described driver element, but according to described driving signal and described modulation risetime, controls the ON time of described motor.
Utilize modulated delay time control system of the present invention, can be modulated the time of delay of described control signal, can make motor with preferred efficient (for example: reduce current value) work, and, but can adjust described modulation risetime according to setting signal, so that motor all can be with preferred efficient work, so that the whole efficiency of lifting motor under different modes of operation.
Description of drawings
Fig. 1 shows that the present invention is used for the block schematic diagram of the modulated delay time control system of motor;
Fig. 2 shows that the present invention is used for the circuit diagram of the modulated delay time control system of motor; And
Fig. 3 shows the sequential chart of embodiment of the invention control signal.
Embodiment
With reference to figure 1, it shows that the present invention is used for the block schematic diagram of the modulated delay time control system of motor.The modulated delay time control system 10 that the present invention is used for motor comprises: control unit 11, driver element 12 and motor 13.Control unit 11 is exported at least one control signal in order to according at least one setting signal, but described control signal has modulation risetime.Driver element 12 is connected to control unit 11, in order to receive described control signal, produces and drives signal.Motor 13 is connected to driver element 12, but according to described driving signal and described modulation risetime, the ON time of control motor 13.
Control unit 11 comprises control circuit 211, can modulate delay output signal generator 212 and commutation signal generator 213, can modulate delay output signal generator 212 and can modulate delay output signal (with reference to P1 and the P2 of figure 2) in order to produce at least one, commutation signal generator 213 is in order to produce at least one commutation signal (with reference to N1 and the N2 of figure 2).Control circuit 211, can to modulate delay output signal generator 212 and commutation signal generator 213 can be other circuit, perhaps can consist of control device 21, and described control device 21 can be microcontroller (Microcontrollor).
Control unit 11 comprises delay switching circuit 22 and reversing switch circuit 23 in addition, wherein delay switching circuit 22 is connected to and can modulates delay output signal generator 212, in order to receiving the described delay output signal of modulating, and produce at least one and can modulate delayed control signal; Reversing switch circuit 23 is connected to commutation signal generator 213, in order to receiving described commutation signal, and produces at least one commutation control signal.
The modulated delay time control system 10 that the present invention is used for motor comprises Hall element 14 in addition, and described Hall element 14 is connected to control unit 11.In the present embodiment, described setting signal is pulse-width signal, but control unit 11 is adjusted described modulation risetime according to described pulse-width signal.In other was used, described setting signal was temperature signal or voltage signal, but control unit 11 can be adjusted described modulation risetime according to described temperature signal or voltage signal.
With reference to figure 2, it shows that the present invention is used for the circuit diagram of the modulated delay time control system of motor.The driver element 12 that the present invention is used for the modulated delay time control system 10 of motor comprises the first transistor 121, transistor seconds 122, the 3rd transistor 123 and the 4th transistor 124, the first transistor 121 is connected in series with transistor seconds 122, has the first tie point A; The 3rd transistor 123 and the 4th transistor 124 are connected in series, and have the second tie point B, and the 3rd transistor 123 and the 4th transistor 124 of series connection are connected in parallel with the first transistor 121 of connecting and transistor seconds 122; Motor 13 (representing with motor winding in Fig. 2) is arranged between the first tie point A and the second tie point B.In the present embodiment, described motor is fan motor, and described motor winding is the fan motor coil.
In the present embodiment, control unit 10 two of outputs can be modulated delayed control signal and two commutation control signals, first can modulate delayed control signal control the first transistor 121, second can modulate delayed control signal controls the 3rd transistor 123, the first commutation control signal control transistor seconds 122, the second commutation control signals are controlled the 4th transistor 124.
Cooperation is with reference to figure 1 and Fig. 2, delay switching circuit 22 comprises the first delay switch transistor 221 and the second delay switch transistor 222, and it is respectively applied to can to modulate delayed control signal and described second with described first and can modulates delayed control signal and be provided to the first transistor 121 and the 3rd transistor 123; Reversing switch circuit 23 comprises the first reversing switch transistor 231 and the second reversing switch transistor 232, and it is respectively applied to described the first commutation control signal and described the second commutation control signal are provided to transistor seconds 122 and the 4th transistor 124.
With reference to figure 3, it shows the sequential chart of embodiment of the invention control signal.Cooperation is with reference to figure 2 and Fig. 3, in the present embodiment, but first can modulate delay output signal P1 and have modulation risetime, but more described the second commutation signal N2 postpones described modulation risetime Td.Therefore, described first also have modulation risetime but can modulate delayed control signal, and also but more described the second commutation control signal postpones described modulation risetime Td, but so that the ON time of the first transistor 121 postpones described modulation risetime Td than the ON time of the 4th transistor 124.But schematically show the described first ON time and the described modulation risetime that can modulate delay output signal P1 and described the second commutation signal N2 in Fig. 3, actual height electric potential relation needs decide according to actual circuit.
Similarly, but described second can modulate delayed control signal and also can have modulation risetime, but so that the ON time of the 3rd transistor 123 postpones described modulation risetime than the ON time of transistor seconds 122.In addition, definition can be modulated the retardation ratio example, but it is the ratio of described modulation risetime (Td) and former ON time (Tc), and wherein said former ON time Tc is not delayed front ON time.
Reference table 1, it shows the comparison sheet of the different retardation ratio modulated examples.Can modulate the retardation ratio example when being 5%, its rotating speed is with can to modulate the rotating speed of retardation ratio example when being 2% roughly the same, but current sinking then is reduced to 0.47A, reduces about 4.1%; Can modulate the retardation ratio example when being 15%, its rotating speed is also with can to modulate the rotating speed of retardation ratio example when being 2% roughly the same, but current sinking then is reduced to 0.39A, reduces about 20%.That is, but when the modulation risetime of control signal lengthens, can not affect rotating speed, but can save current drain, to raise the efficiency.Therefore, the described retardation ratio example of modulating can be between 2% to 20%, and preferably, the described retardation ratio example of modulating is between 15% to 20%.
Table 1
| Can modulate the retardation ratio example | Turn-on cycle | Rotating speed (rpm) | Electric current (A) | Current difference |
| 2％ | 50％ | 5851 | 0.49 | |
| 5％ | 50％ | 5850 | 0.47 | 4.1％ |
| 15％ | 50％ | 5850 | 0.39 | 20％ |
Therefore, utilize modulated delay time control system of the present invention, can be modulated the time of delay of described control signal, can make motor with preferred efficient (for example: reduce current value) work, and, but can adjust described modulation risetime according to setting signal, so that motor all can be with preferred efficient work, so that the whole efficiency of lifting motor under different modes of operation.
Above-described embodiment only is explanation principle of the present invention and effect thereof, and unrestricted the present invention.Therefore the those skilled in the art makes amendment to above-described embodiment and changes and still do not break away from spirit of the present invention.Interest field of the present invention as the aforementioned claims is listed.
Claims (11)
1. modulated delay time control system that is used for motor, it comprises:
Control unit, it exports at least one control signal in order to according at least one setting signal, but described control signal has modulation risetime;
Driver element, it is connected to described control unit, in order to receive described control signal, produces and drives signal; And
Motor, it is connected to described driver element, but according to described driving signal and described modulation risetime, controls the ON time of described motor;
Wherein said control unit comprises control circuit, can modulate delay output signal generator and commutation signal generator, describedly modulate the delay output signal generator for generating at least one can modulate delay output signal, described at least one commutation signal of commutation signal generator for generating.
2. the system as claimed in claim 1, wherein said control unit comprises delay switching circuit and reversing switch circuit in addition, wherein said delay switching circuit is connected to the described delay output signal generator of modulating, in order to receiving the described delay output signal of modulating, and produce at least one and can modulate delayed control signal; Described reversing switch circuit is connected to described commutation signal generator, in order to receiving described commutation signal, and produces at least one commutation control signal.
3. system as claimed in claim 2, wherein said driver element comprises the first transistor, transistor seconds, the 3rd transistor and the 4th transistor, described the first transistor and described transistor seconds are connected in series, and have the first tie point; Described the 4th transistor series of described the 3rd transistor AND gate connects, and has the second tie point, and described the first transistor and the described transistor seconds of described the 3rd transistor of series connection and the series connection of described the 4th transistor AND gate are connected in parallel; Described motor is arranged between described the first tie point and described the second tie point.
4. system as claimed in claim 3, two of wherein said control unit outputs can be modulated delayed control signal and two commutation control signals, wherein first can modulate delayed control signal and control described the first transistor, second can modulate delayed control signal controls described the 3rd transistor, the first commutation control signal is controlled described transistor seconds, and the second commutation control signal is controlled described the 4th transistor.
5. system as claimed in claim 4, but wherein said first can modulate delayed control signal and have modulation risetime, but so that the ON time of described the first transistor the more described the 4th transistorized ON time postpones described modulation risetime.
6. system as claimed in claim 4, but wherein said second can modulate delayed control signal and have modulation risetime, but so that the ON time of the more described transistor seconds of the described the 3rd transistorized ON time postpones described modulation risetime.
7. system as claimed in claim 4, wherein said delay switching circuit comprises the first delay switch transistor and the second delay switch transistor, it is respectively applied to provide described first can modulate delayed control signal and described second and can modulate delayed control signal; Described reversing switch circuit comprises the first reversing switch transistor and the second reversing switch transistor, and it is respectively applied to provide described the first commutation control signal and described the second commutation control signal.
8. the system as claimed in claim 1, wherein said setting signal is pulse-width signal, but adjusts described modulation risetime according to described pulse-width signal.
9. the system as claimed in claim 1, wherein said setting signal is temperature signal or voltage signal, but adjusts described modulation risetime according to described temperature signal or voltage signal.
10. the system as claimed in claim 1, it comprises Hall element in addition, described Hall element is connected to described control unit.
11. the system as claimed in claim 1, wherein said motor are fan motor.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101271724A CN101841287B (en) | 2009-03-16 | 2009-03-16 | Modulated delay time control system for motor |
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| CN2009101271724A CN101841287B (en) | 2009-03-16 | 2009-03-16 | Modulated delay time control system for motor |
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| CN101841287B true CN101841287B (en) | 2013-04-24 |
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1142707A (en) * | 1995-08-04 | 1997-02-12 | 北京市创智科技公司 | Energy saving controlling method for A.C. motors |
| CN1578107A (en) * | 2003-06-27 | 2005-02-09 | 三星电子株式会社 | Apparatus for driving brushless motor and method of controlling the motor |
| CN1649249A (en) * | 2004-01-29 | 2005-08-03 | 三洋电机株式会社 | Motor drive apparatus, integrated circuit, and motor drive method |
| CN1702953A (en) * | 2004-05-17 | 2005-11-30 | 东芝泰格有限公司 | Motor control apparatus and electric appliance using the same |
| CN1716754A (en) * | 2004-07-01 | 2006-01-04 | 三星电子株式会社 | The control method of brushless DC motor |
| CN1989680A (en) * | 2005-07-06 | 2007-06-27 | 松下电器产业株式会社 | Brushless DC motor and electric device using the same |
| CN101263647A (en) * | 2005-09-13 | 2008-09-10 | 东芝开利株式会社 | Power conversion device |
| CN101267181A (en) * | 2007-03-13 | 2008-09-17 | 伊东电机株式会社 | Controllable brushless motor |
| CN201590800U (en) * | 2009-05-27 | 2010-09-22 | 建准电机工业股份有限公司 | Modulated delay time control system for motor |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2778011A (en) * | 1949-12-07 | 1957-01-15 | Sperry Rand Corp | Apparatus for time-delay measurement |
-
2009
- 2009-03-16 CN CN2009101271724A patent/CN101841287B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1142707A (en) * | 1995-08-04 | 1997-02-12 | 北京市创智科技公司 | Energy saving controlling method for A.C. motors |
| CN1578107A (en) * | 2003-06-27 | 2005-02-09 | 三星电子株式会社 | Apparatus for driving brushless motor and method of controlling the motor |
| CN1649249A (en) * | 2004-01-29 | 2005-08-03 | 三洋电机株式会社 | Motor drive apparatus, integrated circuit, and motor drive method |
| CN1702953A (en) * | 2004-05-17 | 2005-11-30 | 东芝泰格有限公司 | Motor control apparatus and electric appliance using the same |
| CN1716754A (en) * | 2004-07-01 | 2006-01-04 | 三星电子株式会社 | The control method of brushless DC motor |
| CN1989680A (en) * | 2005-07-06 | 2007-06-27 | 松下电器产业株式会社 | Brushless DC motor and electric device using the same |
| CN101263647A (en) * | 2005-09-13 | 2008-09-10 | 东芝开利株式会社 | Power conversion device |
| CN101267181A (en) * | 2007-03-13 | 2008-09-17 | 伊东电机株式会社 | Controllable brushless motor |
| CN201590800U (en) * | 2009-05-27 | 2010-09-22 | 建准电机工业股份有限公司 | Modulated delay time control system for motor |
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