CN107370422B - A kind of single phase poaer supply line sends the circuit of more DC brushless motor speed-regulating signals - Google Patents
A kind of single phase poaer supply line sends the circuit of more DC brushless motor speed-regulating signals Download PDFInfo
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- CN107370422B CN107370422B CN201710790579.XA CN201710790579A CN107370422B CN 107370422 B CN107370422 B CN 107370422B CN 201710790579 A CN201710790579 A CN 201710790579A CN 107370422 B CN107370422 B CN 107370422B
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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
- H02P5/00—Arrangements specially adapted for regulating or controlling the speed or torque of two or more electric motors
- H02P5/68—Arrangements specially adapted for regulating or controlling the speed or torque of two or more electric motors controlling two or more dc dynamo-electric motors
Abstract
A kind of single phase poaer supply line sends the circuit of more DC brushless motor speed-regulating signals, including transformer, control power module, controllable rectifier module, zero crossing detection module, single chip control module, trigger control module and speed preset module, input single-phase 220V AC power source, controlled rectification voltage is exported, and sends the speed control signal comprising motor operation direction and speed of service grade in controlled rectification voltage.The circuit directly utilizes single phase poaer supply line transmit speed control signal, it can be achieved that the control and regulation of more DC brushless motor speeds at a distance without individually laying control line.
Description
Present patent application is divisional application, and application No. is 201510386831.1, the applying date is in July, 2015 for original bill
6 days, the entitled device for adjusting more DC brushless motor speeds at a distance.
Technical field
The present invention relates to a kind of electric machine speed regulation control technology, especially a kind of single phase poaer supply line sends more brush DC electricity
The circuit of machine speed-regulating signal.
Background technique
When needing to carry out long-range control with adjusting to the speed of DC brushless motor, usual way has:
First is that using remote control control.The drive control circuit of DC brushless motor is equipped with remote-receiver, Ke Yitong
It crosses remote controler and step speed regulation either stepless speed regulation is carried out to DC brushless motor, the disadvantage is that needing to be equipped with remote controler, manage
Trouble, remote controler are also easy to lose.
Second is that using digital control technology.For example, being controlled using RS-485 bus to the speed of DC brushless motor
System.The program is technologically advanced, but at high cost, and system is in addition to needing to lay power line, it is also necessary to lay digital control bus.
Third is that using analog signal control technology.For example, carrying out speed control using long-range potentiometer, cost is relatively low.But
This method also needs to increase control line, and anti-interference ability is poor.
Summary of the invention
The purpose of the present invention is intended to provide a kind of in the case where not increasing control signal wire and without using remote controler, utilization
Single phase poaer supply line realizes the circuit for sending more DC brushless motor speed-regulating signals.
In order to achieve the above objectives, the technical solution adopted by the present invention is that:
A kind of single phase poaer supply line sends the circuit of more DC brushless motor speed-regulating signals, also known as Commutation control unit.
The Commutation control unit is equipped with phase line input terminal, zero curve input terminal, the first controlled rectification output terminal, the
Two controlled rectification output terminals；The phase line input terminal, zero curve input terminal input single-phase 220V AC power source；Described first
Controlled rectification output terminal, the second controlled rectification output terminal export controlled rectification voltage.
The speed regulation unit is equipped with the first controlled rectification input terminal, the second controlled rectification input terminal, and described the
The first controlled rectification that one controlled rectification input terminal, the second controlled rectification input terminal are respectively connected to Commutation control unit is defeated
Terminal, the second controlled rectification output terminal out.
The Commutation control unit is by transformer, control power module, controllable rectifier module, zero crossing detection module, monolithic
Machine control module, trigger control module, speed preset module composition.
Two input terminals of the transformer are respectively phase line input terminal, zero curve input terminal, two output terminals
Respectively the first ac terminal, the second ac terminal；First ac terminal, the second ac terminal export the second alternating current
Source.
The control power module is made of control power supply single-phase rectification bridge and the first filter regulator circuit, and output first is straight
Flow working power；Two ac input ends of the control power supply single-phase rectification bridge are respectively connected to the first ac terminal, second
Ac terminal；The rectification negative polarity end of the control power supply single-phase rectification bridge is publicly.
The controllable rectifier module is by rectifier bridge UR1, bidirectional thyristor V1, bidirectional thyristor V2, bidirectional thyristor V3, double
It is formed to thyristor V4；2 ac input ends of the rectifier bridge UR1 are respectively connected to the first ac terminal and the second exchange end
Son, rectification output plus terminal are connected to the second plate of bidirectional thyristor V3, and rectification output negative terminal is connected to bidirectional thyristor V4's
Second plate；It is controllable whole that first is connected to after the first anode of bidirectional thyristor V1 is in parallel with the first anode of bidirectional thyristor V3
Flow output terminal；The second plate of bidirectional thyristor V1 is connected to the first ac terminal；The first anode of bidirectional thyristor V2 with
The second controlled rectification output terminal is connected to after the first anode of bidirectional thyristor V4 is in parallel；The second plate of bidirectional thyristor V2
It is connected to the second ac terminal.
The trigger control module is equipped with exchange control signal, rectification control signal；The exchange control signal
When the AC controling signal of input is effective, trigger control module triggers when controlling bidirectional thyristor V1 and bidirectional thyristor V2 zero passage
Conducting；When the AC controling signal of the exchange control signal input is invalid, trigger control module controls bidirectional thyristor V1
End with after bidirectional thyristor V2 zero passage；When the whole flow control signals of the rectification control signal input are effective, triggering control
Triggering and conducting when module controls bidirectional thyristor V3 and bidirectional thyristor V4 zero passage；The rectification of the rectification control signal input
When controlling invalidating signal, end after trigger control module control bidirectional thyristor V3 and bidirectional thyristor V4 zero passage.
The zero crossing detection module is equipped with zero passage voltage input terminal, zero-crossing pulse output end；The zero passage voltage input terminal
Two terminals be respectively connected to the first ac terminal, the second ac terminal；The zero passage arteries and veins of the zero-crossing pulse output end output
Punching is positive pulse；The zero-crossing pulse is corresponding with the second AC power source positive half-wave；The width of the zero-crossing pulse is handed over less than second
Galvanic electricity source positive half-wave width；The second AC power source positive half-wave is that the first ac terminal current potential is higher than the second ac terminal current potential
The second AC power source half-wave.
The speed preset module is equipped with speed preset signal output end and direction Setting signal output end.
The single chip control module includes speed preset signal input part, direction Setting signal input terminal, captures letter
Number input terminal and two-way level signal output end；The speed preset signal input part be connected to the speed of speed preset module to
Determine signal output end；The direction Setting signal input terminal is connected to the direction Setting signal output end of speed preset module；Institute
State the zero-crossing pulse output end that signal acquisition input terminal is connected to zero crossing detection module；The two-way level signal output end difference
For exchange control output end, rectification control output end；The exchange control output end, rectification control output end are respectively connected to touch
Send out exchange control signal, the rectification control signal of control module.
The speed of the more DC brushless motors adjusts the dress being made of Commutation control unit and m speed regulation unit
Set realization；M is the integer more than or equal to 2.The speed regulation unit is by adjusting power module, waveform sampling module, single-chip microcontroller
Adjustment module, address give module, motor drive module composition.
The adjusting power module input controlled rectification voltage, the second DC supply of output, it is single-phase by adjusting power supply
Rectifier bridge and the second filter regulator circuit composition；The rectification negative polarity end for adjusting power supply single-phase rectification bridge is with reference to ground.
The waveform sampling module is equipped with sampling Waveform Input end and sampling pulse output end；The sampling Waveform Input end
It is connected to the second controlled rectification input terminal；Second controlled rectification input terminal current potential is higher than first by the waveform sampling module
Simultaneously clipping obtains sampling pulse for the waveform detection of controlled rectification input terminal current potential；The positive pulse of the sampling pulse and second can
The waveform that control rectification input terminal current potential is higher than the first controlled rectification input terminal current potential is corresponding.
The address gives the address code of speed regulation unit where module is used to set, and is equipped with address code output end.
The single-chip microcontroller adjustment module, which has, captures input terminal, address code input terminal and speed adjusting output end, direction control
Output end processed, control for brake output end；The capture input terminal of the single-chip microcontroller adjustment module is connected to taking for waveform sampling module
Sample pulse output end；The address code input terminal is connected to the address code output end that address gives module.
The motor drive module is equipped with speed and adjusts input terminal, direction controlling input for driving DC brushless motor
End, control for brake input terminal；The speed adjusts the speed adjusting output end that input terminal is connected to single-chip microcontroller adjustment module, direction
Control signal is connected to the direction controlling output end of single-chip microcontroller adjustment module, and control for brake input terminal is connected to single-chip microcontroller adjusting
The control for brake output end of module.
The Commutation control unit controls signal by control controlled rectification voltage come transmission speed；The speed control letter
Number by guide wave and data wave component.
The guide wave by y power frequency period rectification wave component；Y is the integer more than or equal to 1；The data wave is x
The controlled rectification voltage wave of a power frequency period, x are the integer more than or equal to 3.
In the controlled rectification voltage wave of the x power frequency period, corresponding 1 numeric data code of 1 power frequency period；X power frequency week
The controlled rectification voltage wave of phase corresponds to x-bit data code.It is right when controlled rectification voltage wave is waves AC in each power frequency period
The numeric data code answered is 0；In each power frequency period, when controlled rectification voltage wave is rectified wave, corresponding numeric data code is 1.
It include address code, direction code and speed code in the x-bit data code；The numeric data code, address code, direction code, speed
Spending code is binary code.
The speed regulation unit receives speed control signal and adjusts DC brushless motor speed.
The zero crossing detection module is made of diode D1, resistance R9, voltage-stabiliser tube DW1, is equipped with zero passage voltage input terminal, mistake
Zero pulse output end；The both ends of resistance R9 are respectively connected to diode D1 cathode and voltage-stabiliser tube DW1 cathode；Diode D1 anode is
Zero passage voltage input terminal is connected to the first ac terminal；Voltage-stabiliser tube DW1 anode is connected to publicly；Voltage-stabiliser tube DW1 cathode was
Zero pulse output end.
The waveform sampling module is equipped with sampling Waveform Input end and sampling pulse output end, by diode D2, resistance
R12, voltage-stabiliser tube DW2 composition；The both ends of resistance R12 are respectively connected to diode D2 cathode and voltage-stabiliser tube DW2 cathode；Diode D2
Anode is sampling Waveform Input end, is connected to the second controlled rectification input terminal；Voltage-stabiliser tube DW2 anode is connected to reference to ground；Surely
Pressure pipe DW2 cathode is sampling pulse output end.
The speed preset module includes potentiometer.The speed preset module includes direction switch.
The input signal that the speed of the motor drive module adjusts input terminal is pwm pulse or analog voltage.
The invention has the advantages that sent at a distance using single phase poaer supply line more DC brushless motor speeds of control with
The speed-regulating signal of traffic direction is not necessarily to remote controler, is not necessarily to control line；DC brushless motor speed can according to need be divided into it is multiple
Grade；Signal is controlled using rectified wave transmission speed, virtual value is identical as waves AC, not will cause DC brushless motor speed
Power supply is unstable when adjusting.
Detailed description of the invention
3 DC brushless motor speed regulating devices that Fig. 1 is made of Commutation control unit and 3 speed regulation units
System structure diagram.
Fig. 2 is Commutation control unit structure chart.
Fig. 3 is controllable rectifier module embodiment circuit diagram.
Fig. 4 is trigger control module embodiment circuit diagram.
Fig. 5 is embodiment circuit diagram in control section in Commutation control unit.
Waveform diagram when Fig. 6 is transmission speed control signal.
Fig. 7 is speed control signal sending method.
Fig. 8 is speed regulation unit structure chart.
Fig. 9 is that speed regulation unit adjusts section Example circuit diagram.
Figure 10 is 1 circuit diagram of motor drive module embodiment.
Figure 11 is 2 circuit diagram of motor drive module embodiment.
Figure 12 is speed reception and adjusting method.
Specific embodiment
The present invention is described in further detail below by attached drawing and in conjunction with the embodiments, but embodiments of the present invention
It is without being limited thereto.
There is the DC brushless motor speed adjustment system structural block diagram of 3 speed regulation units as shown in Figure 1, rectification
Control unit is exported by phase line input terminal L, zero curve input terminal N input single-phase 220V AC power source by the first controlled rectification
Terminal AC1, the second controlled rectification output terminal AC2 export controlled rectification voltage.1-3# speed regulation unit is controllable by first
Rectification input terminal AC1, the second controlled rectification input terminal AC2 input controlled rectification voltage simultaneously control DC brushless motor speed
Degree.
The structure of Commutation control unit by transformer, control power module, controllable rectifier module, zero passage as shown in Fig. 2, examined
Survey module, single chip control module, trigger control module, speed preset module composition.
Two input terminals of transformer are respectively phase line input terminal L, zero curve input terminal N, two output terminals point
It Wei not the first ac terminal L1, the second ac terminal N1.First ac terminal L1, the second ac terminal N1 export the second alternating current
Source.The voltage effective value of second AC power source is effective lower than the voltage of the single-phase 220V AC power source of Commutation control unit input
Value.
The embodiment of controllable rectifier module as shown in figure 3, by rectifier bridge UR1, bidirectional thyristor V1, bidirectional thyristor V2,
Bidirectional thyristor V3, bidirectional thyristor V4 composition.2 ac input ends of rectifier bridge UR1 are respectively connected to the first ac terminal
L1 and the second ac terminal N1, rectification output plus terminal are connected to the second plate of bidirectional thyristor V3, rectification output negative terminal connection
To the second plate of bidirectional thyristor V4；After the first anode of bidirectional thyristor V1 is in parallel with the first anode of bidirectional thyristor V3
It is connected to the first controlled rectification output terminal AC1；The second plate of bidirectional thyristor V1 is connected to the first ac terminal L1；It is two-way
The second controlled rectification output terminal is connected to after the first anode of thyristor V2 is in parallel with the first anode of bidirectional thyristor V4
AC2；The second plate of bidirectional thyristor V2 is connected to the second ac terminal N1.
The trigger pulse of bidirectional thyristor V1 is inputted from its control electrode K11 and first anode K12, the touching of bidirectional thyristor V2
It sends out pulse to input from its control electrode K21 and first anode K22, the trigger pulse of bidirectional thyristor V3 is from its control electrode K31 and the
The trigger pulse of one anode K32 input, bidirectional thyristor V4 is inputted from its control electrode K41 and first anode K42.
Rectifier bridge UR1 uses single-phase rectification bridge stack, or is replaced using 4 diode composition single-phase rectification bridges.
Trigger control module is the circuit for meeting following functions: being equipped with exchange control signal, rectification control signal；It hands over
When the AC controling signal of flow control input terminal input is effective, trigger control module controls bidirectional thyristor V1 and bidirectional thyristor
Triggering and conducting when V2 zero passage；When the AC controling signal of exchange control signal input is invalid, trigger control module control is two-way
End after thyristor V1 and bidirectional thyristor V2 zero passage；When the whole flow control signals of rectification control signal input are effective, triggering
Triggering and conducting when control module controls bidirectional thyristor V3 and bidirectional thyristor V4 zero passage；Rectify the rectification of control signal input
When controlling invalidating signal, end after trigger control module control bidirectional thyristor V3 and bidirectional thyristor V4 zero passage.
The embodiment of trigger control module is as shown in figure 4, by zero cross fired optocoupler U1-U4 and input current-limiting resistance R1-
R4, output current limiting resistance R5-R8 composition are equipped with exchange control signal KJ, rectification control signal KZ.Zero cross fired optocoupler
The inside of U1-U4 includes input light emitting diode, output optical controlled bidirectional thyrister and zero-cross triggering circuit.Zero cross fired
The model of optocoupler U1-U4 selects in MOC3041, MOC3042, MOC3043, MOC3061, MOC3062, MOC3063.
Input current-limiting resistance R1 connects with the input light emitting diode of zero cross fired optocoupler U1, and series circuit is connected in parallel to the again
One DC supply VDD1 with exchange control signal KJ.Input current-limiting resistance R1 is connected on the input of zero cross fired optocoupler U1
Light-emitting diodes tube anode, as shown in Figure 4；Input current-limiting resistance R1 can also be connected on the input luminous two of zero cross fired optocoupler U1
The cathode of pole pipe.
Input current-limiting resistance R2 connects with the input light emitting diode of zero cross fired optocoupler U2, and series circuit is connected in parallel to the again
One DC supply VDD1 with exchange control signal KJ.The input for inputting current-limiting resistance R3 and zero cross fired optocoupler U3 shines
Diode series, series circuit are connected in parallel to the first DC supply VDD1 and rectification control signal KZ again.Input current limliting electricity
Resistance R4 connects with the input light emitting diode of zero cross fired optocoupler U4, and series circuit is connected in parallel to the first DC supply VDD1 again
With rectification control signal KZ.Input current-limiting resistance R2-R4 can be connected on the input light-emitting diodes of corresponding zero cross fired optocoupler
Tube anode, as shown in Figure 4；The input light-emitting diodes tube cathode of corresponding zero cross fired optocoupler can also be connected on.
Output current limiting resistance R5 is connected in parallel to double again after connecting with output optical controlled bidirectional thyrister inside zero cross fired optocoupler U1
To the control electrode K11 and first anode K12 of thyristor V1；Output is light-operated inside output current limiting resistance R6 and zero cross fired optocoupler U2
The control electrode K21 and first anode K22 of bidirectional thyristor V2 are connected in parallel to after bidirectional thyristor series connection again；Output current limiting resistance R7 with
It is connected in parallel to the control electrode K31 and the of bidirectional thyristor V3 inside zero cross fired optocoupler U3 after the series connection of output optical controlled bidirectional thyrister again
One anode K32；Output current limiting resistance R8 is connected in parallel to again after connecting with output optical controlled bidirectional thyrister inside zero cross fired optocoupler U4
The control electrode K41 and first anode K42 of bidirectional thyristor V4.
Control section includes control power module, zero crossing detection module, single chip control module, speed in Commutation control unit
Given module is spent, embodiment circuit is as shown in Figure 5.
Controlling power module input is the second AC power source, exports the first DC operation to provide to Commutation control unit
Power vd D1.In Fig. 5 embodiment, power module is controlled by diode D01, diode D02, diode D03, diode D04, electricity
Hold C1, three terminal regulator U5 composition.Diode D01, diode D02, diode D03, diode D04 composition control power supply are single-phase
Rectifier bridge；Capacitor C1 is connected in parallel on the DC voltage output end of control power supply single-phase rectification bridge, plays a filtering role；Three terminal regulator U5
Input terminal VIN is connected to the rectification positive ends of control power supply single-phase rectification bridge；First DC supply VDD1 is steady from three ends
Depressor U5 output end VOUT output.The rectification negative polarity end for controlling power supply single-phase rectification bridge is publicly.Three terminal regulator U5 choosing
Select H7133.
Control power module can also use other implementations.Diode D01, diode D02, diode D03, two poles
The control power supply single-phase rectification bridge of pipe D04 composition can be replaced with single-phase rectification bridge stack, and three terminal regulator U5 can use pressure stabilizing
Pipe voltage regulator circuit or DC/DC voltage-stablizer.
Zero crossing detection module is circuit with the following functions: being equipped with zero passage voltage input terminal, zero-crossing pulse output end；It crosses
No-voltage input terminal is connected to the first ac terminal；The zero-crossing pulse of zero-crossing pulse output end output is positive pulse；Zero-crossing pulse
It is corresponding with the second AC power source positive half-wave；The width of zero-crossing pulse is less than the second AC power source positive half-wave width；Second alternating current
Source positive half-wave is the second AC power source half-wave that the first ac terminal current potential is higher than the second ac terminal current potential.
In Fig. 5 embodiment, zero crossing detection module is detection shaping circuit, by diode D1, resistance R9, voltage-stabiliser tube DW1 group
At.The both ends of resistance R9 are respectively connected to diode D1 cathode and voltage-stabiliser tube DW1 cathode, and diode D1 anode is connected to the first friendship
Terminal L1 is flowed, voltage-stabiliser tube DW1 anode is connected to publicly.Voltage-stabiliser tube DW1 cathode is the zero-crossing pulse output for exporting zero-crossing pulse
End.
Speed preset module is equipped with speed preset signal output end output speed Setting signal.The speed of speed preset signal
Grade is speed 1-n；N is the integer more than or equal to 2.There are the device of m speed regulation unit, the output of speed preset module
Speed preset signal include and the one-to-one speed class signal of m speed regulation unit.In Fig. 5 embodiment, speed
Given module respectively divides the first DC supply VDD1 using potentiometer RW1, potentiometer RW2, potentiometer RW3,
Potentiometer RW1, potentiometer RW2, potentiometer RW3 partial pressure output end constitute jointly speed preset signal output end, obtained speed
Spending Setting signal is that speed preset voltage V1 corresponding with 1-3# speed regulation unit, speed preset voltage V2, speed are given respectively
Constant voltage V3.Speed preset voltage V1, speed preset voltage V2, speed preset voltage V3 are divided into n voltage range, respectively
Voltage range is corresponding with the speed class of speed preset signal respectively, minimum voltage section corresponding speed 1, ceiling voltage section pair
Answer speed n.
Speed preset module is additionally provided with direction Setting signal output end outbound course Setting signal, has m speed to adjust single
The device of member, the direction Setting signal of speed preset module output include square correspondingly with m speed regulation unit
To semaphore.In Fig. 5 embodiment, speed preset module is defeated using direction switch SWD1, direction switch SWD2, direction switch SWD3
Direction corresponding with 1-3# speed regulation unit specified rate out.Direction switch SWD1, direction switch SWD2, direction switch SWD3
One termination publicly, other end be direction specified rate output end, constitute jointly direction Setting signal output end.
Single chip control module includes speed preset signal input part, direction Setting signal input terminal, and signal acquisition is defeated
Enter end, 2 tunnel level signal output ends.Speed preset signal input part is connected to the speed preset signal output of speed preset module
End；Direction Setting signal input terminal is connected to the direction Setting signal output end of speed preset module；Signal acquisition input terminal connects
It is connected to the zero-crossing pulse output end of zero crossing detection module, inputs zero-crossing pulse；2 tunnel level signal output ends are exchange control output
KJ, rectification control output end KZ are held, exchange control signal KJ, the rectification control signal of trigger control module are respectively connected to
KZ。
In Fig. 5 embodiment, single chip control module is made of single-chip microprocessor MCU 1, crystal oscillator XT1, single-chip microprocessor MCU 1
Model is MSP430G2553.Analog voltage input A0, A1, A2 of single-chip microprocessor MCU 1 are speed preset signal input part, current potential
Device RW1, potentiometer RW2, potentiometer RW3 output voltage be respectively connected to A0, A1, A2.If opened using the sending of other devices
The speed preset signal of Guan Liang, digital quantity form can be inputted from the I/O mouth of single-chip microprocessor MCU 1.Single-chip microprocessor MCU 1 is by mould
The speed preset voltage of quasi- voltage input end A0, A1, A2 input carries out A/D conversion, or reads I/O mouthfuls of input signal,
Obtain the speed class of speed preset signal.The P2.0 of single-chip microprocessor MCU 1 is signal acquisition input terminal, is connected to zero passage detection mould
The zero-crossing pulse output end of block.P1.3, P1.4, P1.5 of single-chip microprocessor MCU 1 are direction Setting signal input terminals, P1.3, P1.4,
It is given that P1.5 is respectively connected to direction switch SWD1 in speed preset module, direction switch SWD2, the direction of direction switch SWD3
Measure output end.P1.6, P1.7 of single-chip microprocessor MCU 1 are level signal output ends, and wherein P1.6 is exchange control output end KJ,
P1.7 is rectification control output end KZ；Exchange control output end KJ, rectification control output end KZ are respectively connected to triggering control mould
Exchange control signal KJ, the rectification control signal KZ of block.
The first controlled rectification output terminal AC1, the second controlled rectification output terminal AC2 output of Commutation control unit are controllable
Rectified voltage, Commutation control unit control signal by control controlled rectification voltage come transmission speed, and speed control signal is by drawing
Guided wave and data wave component.The virtual value of controlled rectification voltage is identical as the voltage effective value of the second AC power source.
The speed control signal shares speed 1-n, total n speed class.
The guide wave rectifies wave component by y power frequency period, and y is the integer more than or equal to 1.
The data wave is the controlled rectification voltage wave of x power frequency period, and x is the integer more than or equal to 3.Speed control letter
It number is corresponded between the speed 1-n of speed class and the speed 1-n of speed preset signal speed grade.The speed of speed class
Spending 1 corresponding DC brushless motor state is on-position.
In the controlled rectification voltage wave of x power frequency period, corresponding 1 numeric data code of 1 power frequency period, x power frequency period
Controlled rectification voltage wave corresponds to x-bit data code；In each power frequency period, when controlled rectification voltage wave is waves AC, corresponding 1
Position numeric data code is 0；In each power frequency period, when controlled rectification voltage wave is rectified wave, corresponding 1 numeric data code is 1.Or
It is corresponding 1 numeric data code of 1 power frequency period in the controlled rectification voltage wave of x power frequency period；It, can in each power frequency period
When control rectified voltage wave is waves AC, corresponding 1 numeric data code is 1；In each power frequency period, controlled rectification voltage wave is whole
When flowing wave, corresponding 1 numeric data code is 0.
It include x in the x-bit data code1Bit address code, 1 direction code and x2Bit rate code；x1、x2It is to be more than or equal to 1
Integer；x,x1、x2Between relationship be x=x1+x2+1；M and x1Between relationship are as follows: m be less than or equal to 2x1；N and x2Between
Relationship are as follows: n is less than or equal to 2x2；When composition data code, the sequencing between address code, direction code and speed code can freely pacify
Row arranges not change after determining.Speed code determines that direction code is determined by direction Setting signal by speed preset signal.The number
It is binary code according to code, address code, direction code, speed code.
Waveform embodiment is as shown in Figure 6 when Commutation control unit transmission speed controls signal.Y etc. in embodiment illustrated in fig. 6
It is equal to 7 in 2, x；Wherein x1Equal to 2, it at most can control 4 speed regulation units and respectively represented when address code is 00-11
Control 1-4# speed regulation unit；x2Equal to 4, representation speed controls shared totally 16 speed class of signal, speed code 0000-
1111 respectively indicate the speed 1-16 of speed class.In embodiment illustrated in fig. 6, the sequencing of composition data code is followed successively by ground
Location code, direction code, speed code.
What Fig. 6 was sent is to control 2# speed regulation unit DC brushless motor inverted running, speed class as speed 13
Speed control signal.Fig. 6 (a) is the waveform of controlled rectification voltage, and the section T1 therein is guide wave, by 2 power frequency periods
Rectify wave component.The section T2 is data wave, i.e., the controlled rectification voltage wave of 7 power frequency periods.The section T3 and ground in the section T2
Location code is corresponding, the section T4 is corresponding with direction code, the section T5 and speed code are corresponding.The controlled rectification of 7 power frequency periods of embodiment
In voltage wave, corresponding 1 numeric data code of 1 power frequency period；In each power frequency period, when controlled rectification voltage wave is waves AC,
Corresponding numeric data code is 0；In each power frequency period, when controlled rectification voltage wave is rectified wave, corresponding numeric data code is 1；7
Power frequency period is followed successively by waves AC, rectified wave, rectified wave, rectified wave, rectified wave, waves AC, waves AC, corresponding 7 data
Code is 0111100.First 2 of 7 numeric data codes are address codes 01, indicate control 2# speed regulation unit；The 3rd of 7 numeric data codes
Position is direction code 1, indicates control DC brushless motor inverted running；Latter 4 of 7 numeric data codes are speed codes 1100, indicate control
The speed class of DC brushless motor processed is speed 13.
DC brushless motor is it is not necessary that when controlling direction, the x-bit data code is by x1Bit address code and x2Bit rate code composition,
x、x1、x2Between relationship be x=x1+x2。
It is as follows that single chip control module issues the step of speed control signal:
Step 1,2 are entered step when waiting until the rising edge for receiving zero-crossing pulse；
Step 2, stop exchange output, start rectification output；
Step 3, the zero-crossing pulse rising edge received is counted, count value enters step 4 when reaching y；
Step 4, the controlled rectification voltage wave of 1 power frequency period is issued；
Step 5,6 are entered step when waiting until the rising edge for receiving zero-crossing pulse；
Step 6, step 7 is gone to when having been sent from the controlled rectification voltage wave of x power frequency period, otherwise return step 5；
Step 7, stop rectification output, start exchange output.
Commutation control unit when normal maintenance does not issue speed control signal state, hand over by single chip control module control
Flow control output end KJ exports useful signal, and rectification control output end KZ exports invalid signals, zero cross fired optocoupler U1's and U2
Input LEDs ON, the input light emitting diode cut-off of zero cross fired optocoupler U3 and U4, bidirectional thyristor V1, two-way crystalline substance
Brake tube V2 conducting, bidirectional thyristor V3, bidirectional thyristor V4 cut-off, the first controlled rectification output terminal AC1, the second controlled rectification
The controlled rectification voltage of output terminal AC2 output is alternating voltage.In the embodiment shown in fig. 4, single chip control module is defeated
The signal of exchange control output end KJ, rectification control output end KZ out are that low level is effective.
The zero-crossing pulse of the output of zero crossing detection module shown in Fig. 5 is corresponding with the positive half-wave of the second AC power source, and zero passage arteries and veins
The width of punching is less than the second AC power source positive half-wave width.The second AC power source positive half-wave is that the first ac terminal current potential is high
In the second AC power source half-wave of the second ac terminal current potential.
After single chip control module detects zero-crossing pulse rising edge corresponding with half-wave 1 in Fig. 6,2 are entered step.Institute
Stopping exchange output is stated, refers to control exchange control output end KJ output invalid signals, from next mistake of the second AC power source
Zero point starts, bidirectional thyristor V1, bidirectional thyristor V2 cut-off；It is described to start rectification output, refer to control rectification control output
KZ is held to export useful signal, since next zero crossing of the second AC power source, bidirectional thyristor V3, bidirectional thyristor V4 are led
Logical, the controlled rectification voltage of the first controlled rectification output terminal AC1, the second controlled rectification output terminal AC2 output is rectified current
Pressure.
The stopping rectification output refers to control rectification control output end KZ output invalid signals, from the second AC power source
Next zero crossing start, bidirectional thyristor V3, bidirectional thyristor V4 cut-off；It is described to start exchange output, refer to that control is handed over
Flow control output end KJ exports useful signal, bidirectional thyristor V1, two-way since next zero crossing of the second AC power source
Thyristor V2 conducting, the controlled rectification electricity of the first controlled rectification output terminal AC1, the second controlled rectification output terminal AC2 output
Pressure is alternating voltage.
The controlled rectification voltage wave for issuing 1 power frequency period, method are the power frequency periods for judging to need to issue
Controlled rectification voltage wave be waves AC or rectified wave, if it is waves AC, then stop rectification output, start exchange output；
If it is rectified wave, then stop exchange output, starts rectification output.
Each of described controlled rectification voltage wave list power frequency period is waves AC or rectified wave；Single power frequency period
Waves AC by 1 single phase alternating current power supply positive half-wave and minus half wave component of 1 single phase alternating current power supply, positive half-wave is in preceding, negative half-wave
Rear；The rectified wave of single power frequency period is made of 2 rectified half-waves, first rectified half-waves and the second AC power source positive half-wave pair
It answers, second rectified half-waves is corresponding with the negative half-wave of the second AC power source.The time of the power frequency period is 20ms.The either simplex frequency
Period is 1 power frequency period.
Commutation control unit transmission speed control signal method as shown in fig. 7, comprises:
Step A reads Setting signal；
Step B successively issues a speed control signal to all speed regulation units；
Step C, judges whether speed changes, and speed changes, and goes to step D；No change has taken place for speed, returns
Return step C；
Step D forms speed control signal and issues；Return step C.
A speed control signal successively is issued to all speed regulation units, the purpose is to each speed regulation unit
It issues initial velocity and controls signal, control respective initial velocity.
The method for judging whether speed changes is that have speed class to change in speed preset signal, Huo Zheyou
Direction Setting signal changes, then speed changes.
Composition speed control signal simultaneously issues, and method is, when the corresponding speed class of certain speed regulation unit changes
When either direction Setting signal changes, speed class, the direction Setting signal after change are converted into corresponding speed
Code, direction code, the composition data code together with the address code of the speed regulation unit are converted into speed control signal sending.
The structure of speed regulation unit is as shown in figure 8, adjust mould by adjusting power module, waveform sampling module, single-chip microcontroller
Block, address give module, motor drive module composition.The circuit structure and working principle of all m speed regulation units are complete
Equally.
The adjustment portion of speed regulation unit point include adjust power module, waveform sampling module, single-chip microcontroller adjustment module,
Location gives module, and embodiment is as shown in Figure 9.
It adjusts power module and provides the second DC supply VDD2 for speed regulation unit.In Fig. 9 embodiment, electricity is adjusted
Source module is made of diode D05, diode D06, diode D07, diode D08, capacitor C2, three terminal regulator U6.Two poles
Pipe D05, diode D06, diode D07, diode D08 composition adjust power supply single-phase rectification bridge；Capacitor C2 is connected in parallel on adjusting electricity
The DC voltage output end of source single-phase rectification bridge, plays a filtering role；Three terminal regulator U6 input terminal VIN, which is connected to, adjusts power supply list
The rectification positive ends of commutating phase bridge；Second DC supply VDD2 is exported from three terminal regulator U6 output end VOUT.It adjusts
The rectification negative polarity end of power supply single-phase rectification bridge is with reference to ground.Three terminal regulator U6 selects H7133.
Other implementations can also be used by adjusting power module.Diode D05, diode D06, diode D07, two poles
The adjusting power supply single-phase rectification bridge of pipe D08 composition can be replaced with single-phase rectification bridge stack, and three terminal regulator U6 can use pressure stabilizing
Pipe voltage regulator circuit or DC/DC voltage-stablizer.
Waveform sampling module is circuit with the following functions: being equipped with sampling Waveform Input end and sampling pulse output end；
Sampling Waveform Input end is connected to the second controlled rectification input terminal；Waveform sampling module is electric by the second controlled rectification input terminal
Position is higher than the waveform detection of the first controlled rectification input terminal current potential and clipping obtains sampling pulse；The positive pulse of sampling pulse with
The waveform that second controlled rectification input terminal current potential is higher than the first controlled rectification input terminal current potential is corresponding.
In Fig. 9 embodiment, waveform sampling module is detection shaping circuit, by diode D2, resistance R12, voltage-stabiliser tube DW2 group
At.The both ends of resistance R12 are respectively connected to diode D2 cathode and voltage-stabiliser tube DW2 cathode；Diode D2 anode is sampling waveform
Input terminal is connected to the second controlled rectification input terminal AC2；Voltage-stabiliser tube DW2 anode is connected to reference to ground；Voltage-stabiliser tube DW2 cathode
For sampling pulse output end.
Address gives the address code of speed regulation unit where module is used to set, and is equipped with address code output end.Address is given
The address code output end of cover half block is connected to the address code input terminal of single-chip microcontroller adjustment module.3 speed tune are shared in embodiment
Unit is saved, is distinguished with 2 bit address codes, the corresponding 2 bit address code of 1-3# speed regulation unit is 00,01,10 respectively.Fig. 9
In embodiment, 2 bit address codes are set using toggle switch SW1, and the common end COM of toggle switch SW1 is connected to reference to ground,
Output end S1, S2 of toggle switch SW1 is address code output end.
Single-chip microcontroller adjustment module, which has, captures input terminal, address code input terminal and speed adjusting output terminals A DJ, direction controlling
Output end DIR, control for brake output end BRAK.Capture the sampling pulse output end that input terminal is connected to waveform sampling module.Side
Output type to control output end DIR, control for brake output end BRAK is switching value；The output of speed adjusting output terminals A DJ
Type is pwm pulse or analog voltage.
In Fig. 9 embodiment, single-chip microcontroller adjustment module is made of single-chip microprocessor MCU 2, crystal oscillator XT2, single-chip microprocessor MCU 2
Model is MSP430G2553, and the capture input terminal of single-chip microprocessor MCU 2 is P2.0, and it is P1.2, output class that speed, which adjusts output terminals A DJ,
Type is pwm pulse；Direction controlling output end DIR is P1.4, and control for brake output end BRAK is P1.5, and P1.4, P1.5 export TTL
Level signal；P1.6, P1.7 are address code input terminals, are respectively connected to address code output end S1, S2 that address gives module.
Motor drive module is equipped with pwm pulse speed regulation input terminal or analog voltage tune for driving DC brushless motor
Driver for brushless DC motor, the driven by Brush-Less DC motor chip of fast input terminal may be suitable for speed regulation unit.Figure
10 show the circuit of the embodiment 1 using driven by Brush-Less DC motor chip, and Figure 11 is shown to be driven using DC brushless motor
The circuit of the embodiment 2 of dynamic device.
In embodiment illustrated in fig. 10, chip FT310, three phase full bridge MOSFET driving core is driven by motor in motor drive module
Piece U7 and diode D31-D34, capacitor C31-C32, resistance R31-R48, triode V31, potentiometer RW31, temperature-sensitive electricity
Hinder NTC composition.
In Figure 10 embodiment, diode D31-D34 forms single phase bridge type rectifier circu to the first controlled rectification input terminal
The controlled rectification voltage of AC1, the second controlled rectification input terminal AC2 input is rectified, then obtains electricity after capacitor C31 filtering
Machine driving power U+ powers to motor drive ic FT310, three phase full bridge MOSFET driving chip U7.Single-phase bridge rectification electricity
The negative polarity end on road is connected to reference to ground.
In Figure 10 embodiment, resistance R31, resistance R32, triode V31, capacitor C32 composition pwm pulse/analog voltage turn
Circuit is changed, the pwm pulse that speed adjusts input terminal ADJ is converted into analog voltage speed adjustment signal, analog voltage speed tune
Section signal is connected to the speed electric input terminal SREF of motor drive ic FT310.Chip is driven by motor in DC power supply VDD6
+ 6V the power output end of FT310 provides.If the output type that single-chip microcontroller adjustment module speed adjusts output terminals A DJ is simulation
Voltage, then the speed electric input terminal SREF of motor drive ic FT310 is connected directly to speed and adjusts output terminals A DJ, is not necessarily to
Pwm pulse/analog voltage conversion circuit.
In Figure 10 embodiment, driving input terminal HU, LU, HV, LV, HW, LW points of three phase full bridge MOSFET driving chip U7
It is not connected to drive output PWM_HU, PWM_LU, PWM_HV, PWM_LV, PWM_HW, PWM_ of motor drive ic FT310
LW；The three phase mains that three-phase output end U, V, W of three phase full bridge MOSFET driving chip U7 is connected to DC brushless motor M31 is defeated
Enter end；The negative supply input terminal V- of three phase full bridge MOSFET driving chip U7 is connected to through resistance R39 with reference to ground.On resistance R39
Sampling voltage be connected to the sampling current input terminal ITRIP of motor drive ic FT310；Current limliting threshold voltage ILIMIT is by electricity
Position device RW31 is determined.
In Figure 10 embodiment, RPI voltage is determined by resistance R33, resistance R34, and RPI voltage swing determines electric motor starting electric current
Size；RSF voltage is determined that RSF voltage swing determines the size of commutating frequency when electric motor starting by resistance R35, resistance R36；
RSD voltage determines that the time being restarted automatically after overcurrent is arranged by RSD by resistance R37, resistance R38.
In Figure 10 embodiment, VLIMIT is that overheating protection refers to threshold voltage, is determined by resistance R41, resistance R42；VTH is
Input judgement voltage, is determined by resistance R40, thermistor NTC.
In Figure 10 embodiment, resistance R43-R48 composition bleeder circuit acquisition mutually holds feedback voltage to detect counter electromotive force,
Three-phase feedback voltage is respectively connected to feedback input end EMF_U, EMF_V, EMF_W of motor drive ic FT310.
In Figure 10 embodiment, direction controlling output end DIR, the control for brake output end BRAK of single-chip microcontroller adjustment module distinguish
It is connected to direction controlling input terminal F/R, the braking input terminal RESET of motor drive ic FT310.Motor drive ic FT310
Braking input terminal RESET be also known as reseting controling end RESET.
In Figure 10 embodiment, the power end VCC of motor drive ic FT310 is connected to motor drive power supply U+, ground terminal GND
It is connected to reference to ground.
In Figure 10 embodiment, DC brushless motor M31 is the DC brushless motor without Hall sensor.
In embodiment illustrated in fig. 11, motor drive module is by brushless motor driver U61 and diode D61-D64, electricity
Hold C61-C62, resistance R61-R62, triode V61 composition.The model of brushless motor driver U61 is BLD-70.
In Figure 11 embodiment, diode D61-D64 forms single phase bridge type rectifier circu to the first controlled rectification input terminal
The controlled rectification voltage of AC1, the second controlled rectification input terminal AC2 input is rectified, then obtains electricity after capacitor C61 filtering
Machine driving power V+ powers to brushless motor driver U61.The negative polarity end of single phase bridge type rectifier circu is connected to reference to ground.
In Figure 11 embodiment, resistance R61, resistance R62, triode V61, capacitor C62 composition pwm pulse/analog voltage turn
Circuit is changed, the pwm pulse that speed adjusts input terminal ADJ is converted into analog voltage speed adjustment signal, analog voltage speed tune
Section signal is connected to the speed electric input terminal SV of brushless motor driver U61.DC power supply VDD62 is by brushless motor driver
The power output end VCC (+6.25V) of U61 is provided.
In Figure 11 embodiment, three-phase phase terminal U, V, W of brshless DC motor M61 is connected to brushless motor driver
Three-phase output end U, V, W of U61；Hall signal output end HU, HV, HW of brshless DC motor M61 is connected to brushless motor drive
Hall signal input terminal HU, HV, HW of dynamic device U61；The Hall power supply of brshless DC motor M61 is by brushless motor driver U61
Power output end VCC (+6.25V) provide, H+ be connected to brushless motor driver U61 power output end VCC, H- connection
To reference.
In Figure 11 embodiment, direction controlling output end DIR, the control for brake output end BRAK of single-chip microcontroller adjustment module distinguish
It is connected to direction controlling input terminal F/R, the braking input terminal BRK of brushless motor driver U61.
In Figure 11 embodiment, the power positive end DC+ of brushless motor driver U61 is connected to motor drive power supply V+, power supply
Negative terminal DC- is connected to reference to ground.
Speed regulation unit receives speed control signal and adjusts the speed of DC brushless motor, method such as Figure 12 institute
Show, comprising:
Step 1, motor control initialization, sets DC brushless motor as on-position；
Step 2 judges whether there is speed control signal；There is no speed control signal, return step two；There is speed control
Signal goes to step 3；
Step 3 receives speed control signal；
Step 4, judges whether the address code received is consistent with the setting address code of place speed regulation unit, phase
Meet, goes to step 5；It is inconsistent, return step two；
Step 5 adjusts DC brushless motor speed；Return step two.
In positive and negative rotation switching, needing to first pass through control for brake output end BRAK output brake signal makes motor braking, makes
After dynamic, then from direction controlling output end DIR outbound course control signal, realize motor reversal.Directly switch without braking
Realize that positive and negative rotation may result in load current and increased dramatically and damage driving circuit.
The method for adjusting DC brushless motor speed is, in the speed control signal that single-chip microcontroller adjustment module receives, side
When not changing to code, according to the speed of the corresponding speed class control DC brushless motor of speed code；Single-chip microcontroller adjustment module
In the speed control signal received, when direction code changes, DC brushless motor braking is first controlled, it is right further according to speed code
The speed for the speed class control DC brushless motor answered.
When adjusting the method for DC brushless motor speed, when the speed control signal that single-chip microcontroller adjustment module receives is corresponding
Speed class be grade 1 when, control DC brushless motor braking.
Judge whether there is speed control signal, method is judge from the first controlled rectification input terminal AC1, second controllably whole
Whether the controlled rectification voltage of stream input terminal AC2 input has guide wave.
Speed control signal is received, method is the controlled rectification voltage wave for receiving x power frequency period, by x power frequency period
Controlled rectification voltage wave be converted to x-bit data code.
The function of waveform sampling module is to carry out detection shaping to controlled rectification voltage.In Fig. 9 embodiment, waveform sampling mould
Waveform detection and clipping of the block by the first controlled rectification input terminal AC1 current potential lower than the second controlled rectification input terminal AC2 obtain
To sampling pulse, export to the capture input terminal of single-chip microcontroller adjustment module；The positive pulse of sampling pulse and the first controlled rectification are defeated
It is corresponding lower than the half-wave of the second controlled rectification input terminal current potential to enter terminal current potential, sampling pulse positive pulse width is less than should be partly
Wave width.Speed class is shown in sampling pulse example such as Fig. 6 (b) of speed 13 in speed control signal；When controlled rectification electricity
When pressure is alternating voltage, sampling pulse is duty ratio less than the 50%, rectangular wave with the second AC power source same frequency；When controllable whole
When galvanic electricity pressure is rectified voltage, sampling pulse is low level.
In embodiment illustrated in fig. 6, rectification wave component of the guide wave by 2 power frequency periods, sampling pulse before guide wave
It is the rectangular wave for being power frequency period in the period.The rectified wave of 2 power frequency periods should make to occur in sampling pulse width 40ms, i.e.
The low level in 2 power frequency period sections.
Judge whether controlled rectification voltage has guide wave, method is judged in sampling pulse after power frequency period rectangular wave
More than the low level section power frequency period number of power frequency period width；It is had more than in the sampling pulse after power frequency period rectangular wave
Power frequency period number is the low level section of y, then has guide wave in controlled rectification voltage；Sampling after power frequency period rectangular wave
It is not above the low level section that power frequency period number is y in pulse, then does not have guide wave in controlled rectification voltage.
Judge be more than after power frequency period rectangular wave in sampling pulse power frequency period width low level section power frequency period
Several methods are to measure the low level pulse for being more than power frequency period width wide after power frequency period rectangular wave in sampling pulse
Degree, if measurement obtains being more than the low level pulse width of power frequency period width being W, then the power frequency period number in the low level section
For INT (W/20)；The function of INT function is that fractions omitted part is rounded.
In the controlled rectification voltage wave of x power frequency period of data wave, corresponding 1 numeric data code of 1 power frequency period, Mei Gegong
The voltage wave in frequency period can be waves AC, be also possible to rectified wave.When the voltage wave of 1 power frequency period is rectified wave, with
Its corresponding sampling pulse is the low level in 1 power frequency period section；When the voltage wave of 1 power frequency period is waves AC, with
Its corresponding sampling pulse is 1 rectangular wave of the duty ratio less than 50%.In embodiment illustrated in fig. 6, continuous 7 works of data wave
The frequency period is followed successively by waves AC, rectified wave, rectified wave, rectified wave, rectified wave, waves AC, waves AC, corresponding sampling pulse area
Between T7, section T8, section T9, section T10, section T11, section T12, section T13 be followed successively by rectangular wave, low level, low level,
Low level, low level, rectangular wave, rectangular wave, 7 numeric data codes are 0111100.
It is the x after guide wave by the method that the controlled rectification voltage wave of x power frequency period is converted to x-bit data code
In a power frequency period section, when the sampling pulse in 1 power frequency period section is low level, corresponding this bit of data code is 1, when
When the sampling pulse in 1 power frequency period section is rectangular wave of 1 duty ratio less than 50%, corresponding this bit of data code is 0.Or
Person is, in x power frequency period section after guide wave, when the sampling pulse in 1 power frequency period section is low level, and phase
This bit of data code answered is 0, when the sampling pulse in 1 power frequency period section is rectangular wave of 1 duty ratio less than 50%, phase
This bit of data code answered is 1.
Speed code is converted to speed class and the methods of calculating can be used, table look-up.In embodiment, the range of 4 bit rate codes
It is 0000-1111, the speed class range of representative is speed 1-16；When speed code is 0000, speed class is speed 1；Speed
When degree code is 0001, speed class is speed 2；When speed code is 0010, speed class is speed 3；And so on, speed code is
When 1111, speed class is speed 16.
When DC brushless motor does not need control direction, speed preset module is not necessarily to direction Setting signal output end, monolithic
Machine control module is not necessarily to direction Setting signal input terminal, and single-chip microcontroller adjustment module is not necessarily to direction controlling output end, motor driven mould
Block is not necessarily to direction controlling input terminal.
The adjusting power module, motor drive module and waveform sampling module of controlled rectification voltage to speed regulation unit are straight
Connect power supply, adjusting power module therein, motor drive module first rectify controlled rectification voltage, then through capacitor filtering
Afterwards, power supply is provided to interlock circuit；When controlled rectification voltage is zero, the source current of power module, motor drive module is adjusted
It also is zero；Waveform sampling module is non-linear resistive load, when controlled rectification voltage is zero, the power supply electricity of waveform sampling module
Stream is zero.Therefore, when controlled rectification voltage is zero, the source current provided to speed regulation unit is zero.So rectification control
Unit processed the zero crossing of the second AC power source carry out stop exchange output, start rectification output, or be off rectification output,
When starting the switching of exchange output, between bidirectional thyristor V1, bidirectional thyristor V2 and bidirectional thyristor V3, bidirectional thyristor V4
Can succeed the change of current, will not cause power supply short circuit.
The present invention has a characteristic that
1. sending the speed-regulating signal of more DC brushless motors of control using single phase poaer supply line, it is not necessarily to remote controler, without control
Line processed；
2. DC brushless motor speed, which can according to need, is divided into multiple grades；
3. controlling signal using rectified wave transmission speed, virtual value is identical as waves AC, not will cause brush DC electricity
Power supply is unstable when machine speed is adjusted.
Claims (8)
1. the circuit that a kind of single phase poaer supply line sends more DC brushless motor speed-regulating signals, it is characterised in that:
Equipped with phase line input terminal, zero curve input terminal, the first controlled rectification output terminal, the second controlled rectification output terminal；
The phase line input terminal, zero curve input terminal input single-phase 220V AC power source；The first controlled rectification output terminal,
Two controlled rectification output terminals export controlled rectification voltage；
The electricity routing transformer, control power module, controllable rectifier module, zero crossing detection module, single chip control module, touching
Send out control module, speed preset module composition；
Two input terminals of the transformer are respectively phase line input terminal, zero curve input terminal, two output terminal difference
For the first ac terminal, the second ac terminal；First ac terminal, the second ac terminal export the second AC power source；
The control power module is made of control power supply single-phase rectification bridge and the first filter regulator circuit, exports the first direct current work
Make power supply；Two ac input ends of the control power supply single-phase rectification bridge are respectively connected to the first ac terminal, the second exchange
Terminal；The rectification negative polarity end of the control power supply single-phase rectification bridge is publicly；
The controllable rectifier module is by rectifier bridge UR1, bidirectional thyristor V1, bidirectional thyristor V2, bidirectional thyristor V3, two-way crystalline substance
Brake tube V4 composition；2 ac input ends of the rectifier bridge UR1 are respectively connected to the first ac terminal and the second ac terminal,
Rectification output plus terminal is connected to the second plate of bidirectional thyristor V3, and rectification output negative terminal is connected to the second of bidirectional thyristor V4
Anode；It is defeated that the first controlled rectification is connected to after the first anode of bidirectional thyristor V1 is in parallel with the first anode of bidirectional thyristor V3
Terminal out；The second plate of bidirectional thyristor V1 is connected to the first ac terminal；The first anode of bidirectional thyristor V2 with it is two-way
The second controlled rectification output terminal is connected to after the first anode of thyristor V4 is in parallel；The second plate of bidirectional thyristor V2 connects
To the second ac terminal；
The trigger control module is equipped with exchange control signal, rectification control signal；The exchange control signal input
AC controling signal it is effective when, trigger control module control bidirectional thyristor V1 and when bidirectional thyristor V2 zero passage triggering lead
It is logical；It is described exchange control signal input AC controling signal it is invalid when, trigger control module control bidirectional thyristor V1 and
End after bidirectional thyristor V2 zero passage；When the whole flow control signals of the rectification control signal input are effective, triggering control mould
Triggering and conducting when block controls bidirectional thyristor V3 and bidirectional thyristor V4 zero passage；The rectification control of the rectification control signal input
When invalidating signal processed, end after trigger control module control bidirectional thyristor V3 and bidirectional thyristor V4 zero passage；
The zero crossing detection module is equipped with zero passage voltage input terminal, zero-crossing pulse output end；The two of the zero passage voltage input terminal
A terminal is respectively connected to the first ac terminal, the second ac terminal；The zero-crossing pulse of zero-crossing pulse output end output is
Positive pulse；The zero-crossing pulse is corresponding with the second AC power source positive half-wave；The width of the zero-crossing pulse is less than the second alternating current
Source positive half-wave width；The second AC power source positive half-wave is that the first ac terminal current potential is higher than the of the second ac terminal current potential
Two AC power source half-waves；
The speed preset module is equipped with speed preset signal output end and direction Setting signal output end；
The single chip control module includes that speed preset signal input part, direction Setting signal input terminal, signal acquisition are defeated
Enter end and two-way level signal output end；The speed preset signal input part is connected to the speed preset letter of speed preset module
Number output end；The direction Setting signal input terminal is connected to the direction Setting signal output end of speed preset module；It is described to catch
Catch the zero-crossing pulse output end that signal input part is connected to zero crossing detection module；The two-way level signal output end is respectively to hand over
Flow control output end, rectification control output end；The exchange control output end, rectification control output end are respectively connected to triggering control
Exchange control signal, the rectification control signal of molding block；
The circuit controls signal by control controlled rectification voltage come transmission speed；
In controlled rectification voltage wave, corresponding 1 numeric data code of 1 power frequency period；In each power frequency period, controlled rectification voltage wave
When for waves AC, corresponding numeric data code is 0；In each power frequency period, when controlled rectification voltage wave is rectified wave, corresponding number
It is 1 according to code.
2. single phase poaer supply line according to claim 1 sends the circuit of more DC brushless motor speed-regulating signals, feature
Be: the zero crossing detection module is made of diode D1, resistance R9, voltage-stabiliser tube DW1, is equipped with zero passage voltage input terminal, zero passage
Pulse output end；The both ends of resistance R9 are respectively connected to diode D1 cathode and voltage-stabiliser tube DW1 cathode；Diode D1 anode was
No-voltage input terminal is connected to the first ac terminal；Voltage-stabiliser tube DW1 anode is connected to publicly；Voltage-stabiliser tube DW1 cathode is zero passage
Pulse output end.
3. single phase poaer supply line according to claim 1 sends the circuit of more DC brushless motor speed-regulating signals, feature
Be: the speed preset module includes potentiometer.
4. single phase poaer supply line according to claim 1 sends the circuit of more DC brushless motor speed-regulating signals, feature
Be: the speed preset module includes direction switch.
5. single phase poaer supply line according to claim 1 sends the circuit of more DC brushless motor speed-regulating signals, feature
Be: the single chip control module is made of single-chip microprocessor MCU 1, crystal oscillator XT1；The model of the single-chip microprocessor MCU 1 is
MSP430G2553。
6. single phase poaer supply line described in any one of -5 sends more DC brushless motor speed-regulating signals according to claim 1
Circuit, it is characterised in that:
The speed control signal is by guide wave and data wave component；
The guide wave by y power frequency period rectification wave component；Y is the integer more than or equal to 1；
The data wave is the controlled rectification voltage wave of x power frequency period, and x is the integer more than or equal to 3；
In the controlled rectification voltage wave of the x power frequency period, corresponding 1 numeric data code of 1 power frequency period；X power frequency period
Controlled rectification voltage wave corresponds to x-bit data code.
7. single phase poaer supply line according to claim 6 sends the circuit of more DC brushless motor speed-regulating signals, feature
It is:
It include address code, direction code and speed code in the x-bit data code；The numeric data code, address code, direction code, speed code
It is binary code.
8. single phase poaer supply line according to claim 7 sends the circuit of more DC brushless motor speed-regulating signals, feature
It is:
It include x in the x-bit data code1Bit address code, 1 direction code and x2Bit rate code；x1、x2It is whole more than or equal to 1
Number；x,x1、x2Between relationship be x=x1+x2+1。
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710790579.XA CN107370422B (en) | 2015-07-06 | 2015-07-06 | A kind of single phase poaer supply line sends the circuit of more DC brushless motor speed-regulating signals |
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| CN201510386831.1A CN104967366B (en) | 2015-07-06 | 2015-07-06 | The device of many DC brushless motor speeds is adjusted at a distance |
| CN201710790579.XA CN107370422B (en) | 2015-07-06 | 2015-07-06 | A kind of single phase poaer supply line sends the circuit of more DC brushless motor speed-regulating signals |
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| CN201510386831.1A Division CN104967366B (en) | 2015-07-06 | 2015-07-06 | The device of many DC brushless motor speeds is adjusted at a distance |
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| CN201710790579.XA Active CN107370422B (en) | 2015-07-06 | 2015-07-06 | A kind of single phase poaer supply line sends the circuit of more DC brushless motor speed-regulating signals |
| CN201510386831.1A Active CN104967366B (en) | 2015-07-06 | 2015-07-06 | The device of many DC brushless motor speeds is adjusted at a distance |
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| CN114583895B (en) * | 2022-04-29 | 2022-09-02 | 中山大洋电机股份有限公司 | BLDC motor and electrical equipment with networking communication function |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1921260A (en) * | 2006-09-01 | 2007-02-28 | 桂林航天电子有限公司 | Intelligent power distribution administrative center |
| CN103731038A (en) * | 2012-10-11 | 2014-04-16 | 富士电机株式会社 | Signal transmission device and switching power supply |
| CN204046475U (en) * | 2014-09-13 | 2014-12-24 | 北京精密机电控制设备研究所 | A kind of down-hole brushless DC motor driving controller |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP3719244B2 (en) * | 2002-12-18 | 2005-11-24 | 日産自動車株式会社 | Coaxial multiple position detector and rotating electric machine using the same |
| JP4293064B2 (en) * | 2004-06-18 | 2009-07-08 | ブラザー工業株式会社 | Image forming apparatus |
| JP3772898B2 (en) * | 2004-09-08 | 2006-05-10 | ダイキン工業株式会社 | Multiphase current supply circuit and drive device |
| US7675761B2 (en) * | 2007-06-01 | 2010-03-09 | Power Integrations, Inc. | Method and apparatus to control two regulated outputs of a flyback power supply |
| CN103079319B (en) * | 2013-01-24 | 2015-10-14 | 福建侨汇电子科技有限公司 | A kind of Single-wire-system radio-frequency light modulator based on microcontroller |
| CN103281849B (en) * | 2013-06-26 | 2015-01-07 | 湖南工业大学 | Light-adjusting device and method of LED illuminating lamp |
| CN204156768U (en) * | 2014-10-29 | 2015-02-11 | 哈尔滨理工大学 | The Switched Reluctance Motor that a kind of portable wireless controls |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1921260A (en) * | 2006-09-01 | 2007-02-28 | 桂林航天电子有限公司 | Intelligent power distribution administrative center |
| CN103731038A (en) * | 2012-10-11 | 2014-04-16 | 富士电机株式会社 | Signal transmission device and switching power supply |
| CN204046475U (en) * | 2014-09-13 | 2014-12-24 | 北京精密机电控制设备研究所 | A kind of down-hole brushless DC motor driving controller |
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| CN104967366A (en) | 2015-10-07 |
| CN104967366B (en) | 2017-10-20 |
| CN107370422A (en) | 2017-11-21 |
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