CN103187908B - A kind of DC brushless motor controller with automatic control phase advance angle - Google Patents
A kind of DC brushless motor controller with automatic control phase advance angle Download PDFInfo
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- CN103187908B CN103187908B CN201110457662.8A CN201110457662A CN103187908B CN 103187908 B CN103187908 B CN 103187908B CN 201110457662 A CN201110457662 A CN 201110457662A CN 103187908 B CN103187908 B CN 103187908B
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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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- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
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Abstract
The invention discloses a kind of DC brushless motor controller with automatic control phase advance angle, comprise brushless electric machine special integrated circuit, IGBT inversion unit, rotor position detection circuit, over-current detection circuit and power supply, over-current detection circuit detects bus current signal and converts the overcurrent input pin (If) that voltage signal (Uf) delivers to the process of brushless electric machine special integrated circuit to, the position signalling of rotor is input to brushless electric machine special integrated circuit by rotor position detection circuit, brushless electric machine special integrated circuit outputs signal IGBT inversion unit, the output of IGBT inversion unit connects motor winding, the voltage signal (Uf) that over-current detection circuit exports also is connected with amplifying circuit, the output of amplifying circuit is connected to the phase advance angle input (ANG) of brushless electric machine special integrated circuit.It is according to the automatic control phase advance angle of bus current, and adapt to different loads, the adjustable range of phase advance angle is more widened, and meets the requirement to the application of the many rotating speeds of motor, many power, improves electric efficiency.
Description
Technical field:
The present invention relates to a kind of DC brushless motor controller with automatic control phase advance angle.
Background technology:
At present, utilize DC brushless motor special integrated circuit IC and corresponding hardware to control the running of DC brushless motor, software can not be write, circuit structure is simple, control also simple, low cost of manufacture, large-scale production is convenient, as shown in Figure 1, mainly comprise DC brushless motor special integrated circuit (such as 6551, 6854 IC such as grade), IGBT inversion unit, rotor position detection circuit (mainly Hall element), resistance R19 detects bus current and converts voltage signal Uf to, then the overcurrent input pin If of DC brushless motor special integrated circuit is delivered to.In addition, by electric resistance partial pressure setting phase advance angle voltage signal, and voltage signal is input to input ANG, by DC brushless motor special integrated circuit according to setting voltage signal determination phase advance angle.
As shown in Figure 1, conventional DC brushless motor special integrated circuit can only set stationary phase advance angle (0-58 degree) by resistance R1, R2 dividing potential drop (0-5V).At present a lot of electrical machinery plant is puzzled by following problem: 1. according to motor load point to configure advance angle, if advance angle is very large, so often there will be electric motor starting failure when startup.2., along with client is to the application of the many rotating speeds of motor, many power, fixed lead angle is not meeting the high efficiency requirement in whole interval.3. DC brushless motor special integrated circuit IC as software scenario, can not can write advance angle formula etc. again.Even if write, is also not suitable for each motor.
Summary of the invention:
The object of this invention is to provide a kind of DC brushless motor controller with automatic control phase advance angle, it can control phase advance angle automatically, and adapt to different loads, the adjustable range of phase advance angle is more widened, meet the requirement to the application of the many rotating speeds of motor, many power, improve electric efficiency.
The object of the invention is to be achieved by following technical scheme.
A kind of DC brushless motor controller with automatic control phase advance angle, comprise brushless electric machine special integrated circuit, IGBT inversion unit, rotor position detection circuit, over-current detection circuit and power supply, over-current detection circuit detects bus current signal and converts the overcurrent input pin that voltage signal delivers to the process of brushless electric machine special integrated circuit to, the position signalling of rotor is input to brushless electric machine special integrated circuit by rotor position detection circuit, brushless electric machine special integrated circuit outputs signal IGBT inversion unit, the output of IGBT inversion unit connects motor winding, it is characterized in that: the voltage signal that over-current detection circuit exports also is connected with amplifying circuit, the output of amplifying circuit is connected to the phase advance angle input of brushless electric machine special integrated circuit.
Arrange filtering circuit between the output of amplifying circuit described above and the phase advance angle input of brushless electric machine special integrated circuit, filtering circuit adopts two-stage RC filtering circuit.
Brushless electric machine special integrated circuit described above is DC brushless motor special integrated circuit 6551 or 6854.
Amplifying circuit described above comprises operational amplifier IC1A, resistance R4 and resistance R5, resistance R4 two ends are connected to the 1st pin and the 2nd pin of operational amplifier IC1A, 1st pin of the two ends difference operational amplifier IC1A of resistance R5 and ground, the 3rd pin of operational amplifier IC1A is as signal input pin.
Between the voltage signal Uf that over-current detection circuit described above exports and the 3rd pin of operational amplifier IC1A, voltage stabilizing circuit is set.
Voltage stabilizing circuit described above comprises voltage-stabiliser tube D1, electric capacity C3 and resistance R6, the 3rd pin contact resistance R6 of voltage signal Uf and operational amplifier IC1A, one end ground connection after voltage-stabiliser tube D1, electric capacity C3 parallel connection, the 3rd pin of other end concatenation operation amplifier IC1A.
The present invention's beneficial effect is compared with prior art: the voltage signal Uf that 1) over-current detection circuit exports by the present invention carries out amplification process, and be input to the phase advance angle input ANG of brushless electric machine special integrated circuit, the voltage signal Uf that over-current detection circuit exports constantly changes, the magnitude of voltage being input to the phase advance angle input ANG of brushless electric machine special integrated circuit also constantly changes, almost close to linear change, therefore, can according to the difference of load, the change that bus current produces, obtain different phase advance angle, there is automatic regulation function, adapt to different loads, incorrect the causing reducing phase advance angle setting starts failed fault, 2) along with client is to the application of the many rotating speeds of motor, many power, traditional fixed lead angle is not meeting the high efficiency requirement in whole interval, phase advance angle of the present invention changes automatically according to the change of bus current, can improve the efficiency of motor, meets the requirement of the many rotating speeds of motor, many power, 3) between the output of amplifying circuit and the phase advance angle input of brushless electric machine special integrated circuit, filtering circuit is set, filtering circuit adopts two-stage RC filtering circuit, the interference signal being input to the phase advance angle input ANG of brushless electric machine special integrated circuit can be got rid of, 4) amplifying circuit is operational amplifier, and multiplication factor is high, makes the automatic adjustment of phase advance angle be able to reliable enforcement, regulates multiplication factor to be achieved by regulating resistance R4 and resistance R5, simple and convenient, 5) over-current detection circuit export voltage signal Uf and the 3rd pin of operational amplifier IC1A between voltage stabilizing circuit is set, make the input signal entering operational amplifier more stable
Accompanying drawing illustrates:
Fig. 1 is the DC brushless motor controller circuit theory diagrams that tradition adopts special integrated circuit;
Fig. 2 is DC brushless motor controller circuit block diagram of the present invention;
Fig. 3 is the circuit diagram of the further expansion of this Fig. 2;
Fig. 4 is bus current of the present invention and the schematic diagram of corresponding signal conversion voltage.
Fig. 5 is bus current of the present invention and the corresponding schematic diagram of the voltage U (ANG) of the phase advance angle input ANG of brushless electric machine special integrated circuit
Embodiment:
Below by specific embodiment, also the present invention is described in further detail by reference to the accompanying drawings.
As Fig. 2, shown in Fig. 3, a kind of DC brushless motor controller with automatic control phase advance angle of the present invention, comprise brushless electric machine special integrated circuit, IGBT inversion unit, rotor position detection circuit, over-current detection circuit and power supply, over-current detection circuit detects bus current signal and converts the overcurrent input pin If that voltage signal Uf delivers to the process of brushless electric machine special integrated circuit to, the position signalling of rotor is input to brushless electric machine special integrated circuit by rotor position detection circuit, brushless electric machine special integrated circuit outputs signal IGBT inversion unit, the output of IGBT inversion unit connects motor winding, the voltage signal Uf that over-current detection circuit exports also is connected with amplifying circuit, the output of amplifying circuit is connected to the phase advance angle input ANG of brushless electric machine special integrated circuit, between the output of amplifying circuit and the phase advance angle input ANG of brushless electric machine special integrated circuit, filtering circuit is set, filtering circuit adopts two-stage RC filtering circuit, comprise electric capacity C1, electric capacity C2, resistance R2, resistance R3, brushless electric machine special integrated circuit is DC brushless motor special integrated circuit 6551 or 6854, amplifying circuit comprises operational amplifier IC1A, resistance R4 and resistance R5, resistance R4 two ends are connected to the 1st pin and the 2nd pin of operational amplifier IC1A, 1st pin of the two ends difference operational amplifier IC1A of resistance R5 and ground, 3rd pin of operational amplifier IC1A is as signal input pin, between the voltage signal Uf that over-current detection circuit exports and the 3rd pin of operational amplifier IC1A, voltage stabilizing circuit is set, voltage stabilizing circuit comprises voltage-stabiliser tube D1, electric capacity C3 and resistance R6, contact resistance R6 between 3rd pin of voltage signal Uf and operational amplifier IC1A, voltage-stabiliser tube D1, one end ground connection after electric capacity C3 parallel connection, 3rd pin of other end concatenation operation amplifier IC1A.
As shown in Figure 4; B curve is the curve that voltage U f changes with bus current If; when bus current If is greater than current foldback circuit permission maximum current If0; DC brushless motor special integrated circuit controls motor and shuts down; at bus current If between 0 to If0; voltage U f change is slow and unconspicuous, therefore, directly can not access the phase advance angle input ANG of brushless electric machine special integrated circuit.
As shown in Figure 5, A curve is the curve that voltage U (ANG) changes with bus current If, over-current detection circuit detects bus current and the voltage signal Uf of conversion output, voltage signal Uf is through amplifying circuit process, the voltage U (ANG) of the phase advance angle input ANG of brushless electric machine special integrated circuit and the relation of bus current are close to linear relationship, bus current slightly changes, the voltage U (ANG) of the phase advance angle input ANG of brushless electric machine special integrated circuit there will be significant change, thus automatic control phase advance angle, adapt to different loads, the adjustable range of phase advance angle is more widened, meet the many rotating speeds of motor, the requirement of the application of many power, improve electric efficiency.
Claims (3)
1. one kind has the DC brushless motor controller of automatic control phase advance angle, comprise brushless electric machine special integrated circuit, IGBT inversion unit, rotor position detection circuit, over-current detection circuit and power supply, over-current detection circuit detects bus current signal and converts the overcurrent input pin (If) that voltage signal (Uf) delivers to the process of brushless electric machine special integrated circuit to, the position signalling of rotor is input to brushless electric machine special integrated circuit by rotor position detection circuit, brushless electric machine special integrated circuit outputs signal IGBT inversion unit, the output of IGBT inversion unit connects motor winding, it is characterized in that: the voltage signal (Uf) that over-current detection circuit exports also is connected with amplifying circuit, the output of amplifying circuit is connected to the phase advance angle input (ANG) of brushless electric machine special integrated circuit, between the output of amplifying circuit and the phase advance angle input (ANG) of brushless electric machine special integrated circuit, filtering circuit is set, brushless electric machine special integrated circuit is DC brushless motor special integrated circuit 6551, amplifying circuit comprises operational amplifier (IC1A), resistance R4 and resistance R5, operational amplifier (IC1A) arranges resistance R4, resistance R5, resistance R4 two ends are connected to the output pin of operational amplifier (IC1A) and reverse input pin, the reverse input pin at two ends difference concatenation operation amplifier (IC1A) of resistance R5 and ground, between the voltage signal (Uf) that over-current detection circuit exports and the forward input pin of operational amplifier (IC1A), voltage stabilizing circuit is set.
2. a kind of DC brushless motor controller with automatic control phase advance angle according to claim 1, is characterized in that: filtering circuit adopts two-stage RC filtering circuit.
3. a kind of DC brushless motor controller with automatic control phase advance angle according to claim 1, it is characterized in that: voltage stabilizing circuit comprises voltage-stabiliser tube (D1), electric capacity (C3) and resistance R6, resistance R6 is connected between the forward input pin of operational amplifier (IC1A) and voltage signal (Uf), one end ground connection after voltage-stabiliser tube (D1), electric capacity (C3) are in parallel, the forward input pin of other end concatenation operation amplifier (IC1A).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201110457662.8A CN103187908B (en) | 2011-12-29 | 2011-12-29 | A kind of DC brushless motor controller with automatic control phase advance angle |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201110457662.8A CN103187908B (en) | 2011-12-29 | 2011-12-29 | A kind of DC brushless motor controller with automatic control phase advance angle |
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| CN103187908A CN103187908A (en) | 2013-07-03 |
| CN103187908B true CN103187908B (en) | 2016-03-30 |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103956940B (en) * | 2014-04-30 | 2019-02-12 | 广东威灵电机制造有限公司 | The contrary wind starting control method and control device of direct current generator in air-conditioner outdoor unit |
| CN105375838B (en) * | 2015-11-12 | 2018-02-06 | 珠海格力节能环保制冷技术研究中心有限公司 | The control circuit and method of motor phase |
| CN105429098A (en) * | 2015-12-18 | 2016-03-23 | 埃泰克汽车电子(芜湖)有限公司 | Vehicle-mounted direct current motor driving chip overcurrent protection system |
| CN109067265A (en) * | 2018-08-20 | 2018-12-21 | 珠海格力电器股份有限公司 | Motor control method, control device and air conditioning equipment |
| CN109088578B (en) * | 2018-08-20 | 2020-06-30 | 珠海格力电器股份有限公司 | Motor control method and system and air conditioner |
| CN112701965B (en) * | 2020-12-17 | 2022-11-11 | 珠海格力电器股份有限公司 | Lead angle control method and device and permanent magnet motor |
| CN114499292B (en) * | 2022-04-18 | 2022-07-15 | 中山大洋电机股份有限公司 | Adaptive control method based on advance angle calculation of inductive brushless motor |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4808902A (en) * | 1987-05-26 | 1989-02-28 | Kabushiki Kaisha Toshiba | Control apparatus for brush-less motor |
| CN1320297A (en) * | 1998-08-31 | 2001-10-31 | 株式会社日立制作所 | Controller for PWM/PAM motor and method for controlling air conditioner and motor having controller |
| CN1691490A (en) * | 2004-04-22 | 2005-11-02 | 日本电产芝浦株式会社 | Brushless DC motor driver |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003348875A (en) * | 2002-05-27 | 2003-12-05 | Matsushita Electric Ind Co Ltd | Motor drive |
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- 2011-12-29 CN CN201110457662.8A patent/CN103187908B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4808902A (en) * | 1987-05-26 | 1989-02-28 | Kabushiki Kaisha Toshiba | Control apparatus for brush-less motor |
| CN1320297A (en) * | 1998-08-31 | 2001-10-31 | 株式会社日立制作所 | Controller for PWM/PAM motor and method for controlling air conditioner and motor having controller |
| CN1691490A (en) * | 2004-04-22 | 2005-11-02 | 日本电产芝浦株式会社 | Brushless DC motor driver |
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