CN102545770A - Motor driving module capable of adjusting output pulse width modulation control signal - Google Patents
Motor driving module capable of adjusting output pulse width modulation control signal Download PDFInfo
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- CN102545770A CN102545770A CN2010106218929A CN201010621892A CN102545770A CN 102545770 A CN102545770 A CN 102545770A CN 2010106218929 A CN2010106218929 A CN 2010106218929A CN 201010621892 A CN201010621892 A CN 201010621892A CN 102545770 A CN102545770 A CN 102545770A
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Abstract
The invention relates to a motor driving module capable of adjusting an output pulse width modulation control signal. The motor driving device consists of a latch forced starting device, a voltage adjusting circuit and a frequency adjusting circuit, wherein the voltage adjusting circuit is formed outside the latch forced starting device; the latch forced starting device comprises a comparator and a motor starting controller; the comparator is provided with a first input end and a second input end; the first input end is connected with the external voltage adjusting circuit and a switch; the first input end of the motor starting controller is connected with a pulse wave generator, the other input end of the motor starting controller is connected with an oscillator, and an output end of the motor starting controller is connected with the switch; and the motor starting controller is controlled to output a high-voltage signal to control the switch so as to control an output pulse width modulation signal of the comparator through a pulse wave signal generated by the pulse wave generator and counting to a set time by the oscillator.
Description
Technical field
The invention relates to a kind of motor driving module with adjustment motor rotary speed; Particularly relevant for a kind of motor driving module of using under no microcontroller pattern; Through the design of an external circuit and a motor drive, pulse width modulation (PWM) rotary speed signal that makes the drive unit of motor export can be adjusted according to external circuit.
Background technology
As consumer products have diverse characteristics, and in order to reduce production costs, some do not micro-control mode (Non-MCU) consumer products, such as: hair dryer, microwave, oven, instrument or light emitting diodes (LED) lighting devices, etc., were not configured micro-control unit; addition, the cooling requirements of these products is not the same.So when a motor driving module is used the following time of operator scheme at no microcontroller signal; Owing to there is not micromonitor system that the relation of pulse width modulation (PWM) controlling signal is provided; The motor driving module of this type make the motor driving module of this type can't produce the rotating speed of control motor, so can only come CD-ROM drive motor to reach the function of heat radiation with fixed rotating speed via pulse width modulation (PWM) signal.
In order to make the motor driving module of these uses under no microcontroller pattern can produce the rotating speed of required motor according to the radiating requirements of product, method of its adjustment motor rotary speed can have several kinds down, and first kind is to change motor load, shown in Figure 1A; Second kind is the pattern that changes operating voltage, shown in Figure 1B.Right this dual mode all has the restriction of its application facet, and with the mode of the change motor load shown in Figure 1A, when being applied in the fan of some small sizes and low load, the method has the restriction of its coiling.And, then have the complexity that minimum operating voltage restriction and voltage must change because of different application with the mode of the change operating voltage shown in Figure 1B.Solving at present the mode that changes voltage, is to reach different application requirements at the load end resistance of connecting, shown in Figure 1A; But the method has a very big shortcoming, the power that increases consumption exactly, thereby the efficient of reduction fan motor.
In addition, when motor was in slow-speed of revolution application, the problem that can run into comprised: at first, owing to use the motor driving module at no micromonitor system, itself can't judge whether motor has started completion, and can only come CD-ROM drive motor with the starting power that configures; But starting torque (torque) required when just having started owing to motor is bigger; So when motor is when being in slow-revving setting; The moment (torque) of starting may be not enough, and cause motor when just beginning to start, and has the possibility that can't get into smooth.Secondly, after influence or irresistible factor that motor receives external force cause motor to stop, when motor starts again, also can cause motor to start once more because of the relation of starting torque.Therefore, if after can't starter motor, motor driving module still continues except the power that increases consumption, also might cause motor to burn according to setting when voltage is provided to motor.
Summary of the invention
In order to solve aforesaid problem; A main purpose of the present invention is disclosing the external again circuit in a kind of outside in motor driving module; Through the design of this external circuits, make motor driving module can produce the function of different pulse width modulations (PWM) output signal, so do not having under the situation of micromonitor system; Motor driving module of the present invention can be in response to the application of different product for motor rotary speed; Except improving the restriction of voltage and motor coiling, be connected in series a resistance again because not be used in load end, therefore improved the operating efficiency of motor.
In addition; Another main purpose of the present invention is providing a kind of motor driving module that breech lock is forced starting device that has; Do not having under the situation of micromonitor system, forcing starting device to reset the motor that pins or stop operating through the breech lock in the motor driving module.
Moreover; Of the present invention also have a main purpose that a kind of motor driving module that can adjust the charging interval is being provided; Do not having under the situation of micromonitor system; Through adjusting vibration and the noise of suitable charging interval when reducing motor and resetting, make motor driving module of the present invention can use on sophisticated product or device.
According to above-mentioned purpose; The present invention provides a kind of motor driving module of adjusting output pulse width modulation (PWM) controlling signal; This motor driving module is formed at this motor drive outside a voltage-regulating circuit and a frequency regulating circuit by a motor drive, and forms; Being characterized as of this motor driving module: motor drive comprises a comparator, and it has a first input end and one second input, and first input end is connected with external voltage adjustment circuit; Wherein external voltage adjustment circuit is one by at least one resistance and the formed charging circuit of at least one electric capacity, in order to one first voltage to be provided; And a triangular wave generator, its output is connected with second input of comparator, and its input is connected with frequency regulating circuit, in order to export second input of triangular wave signal to this comparator; Through comparator with first voltage and triangular wave signal relatively after, export a pulse width modulation (PWM) controlling signal by the output of comparator.
The present invention then provides a kind of motor driving module that breech lock is forced starting device that has again; A voltage-regulating circuit and a frequency regulating circuit that this motor driving module forces starting device, to be formed at this breech lock pressure starting device outside by a breech lock are formed; Being characterized as of this motor driving module: breech lock forces starting device to comprise: a comparator; It has a first input end and one second input, and first input end is connected with an external voltage adjustment circuit and a switch; And a breech lock pressure starter, its first input end is connected with a pulse generator, and its another input is connected with an oscillator, and its output is connected with switch; Count up to a setting-up time through pulse wave signal that pulse generator produced and oscillator and control breech lock and force starter to export a signal to come control switch, with the output signal of control comparator.
The present invention provides a kind of motor control system again; It is the motor that is connected with this output unit of the output unit and that is connected with this motor driving module of motor driving module, that to adjust output pulse width modulation (PWM) controlling signal by one; And this motor driving module is made up of a motor drive, external voltage adjustment circuit and the formed frequency regulating circuit of capacitor; Wherein, Being characterized as of this motor driving module: motor drive comprises a comparator, and it has a first input end and one second input, and first input end is connected with an external voltage adjustment circuit and a switch; And breech lock pressure starter, its first input end is connected with a pulse generator, and its another input is connected with an oscillator, and its output is connected with switch; Count up to a setting-up time through pulse wave signal that pulse generator produced and oscillator and control breech lock and force starter to export a signal to come control switch, with the output signal of control comparator; And when exporting a pulse width modulation (PWM) controlling signal, this pulse width modulation (PWM) controlling signal is delivered to output unit through the output of comparator, rotate with CD-ROM drive motor.
Description of drawings
Figure 1A is a kind of motor drive sketch map that changes motor load in the prior art;
Figure 1B is a kind of motor drive sketch map that changes operating voltage in the prior art;
Fig. 2 A and Fig. 2 B are the sketch mapes of motor drive of the present invention and voltage level adjustment;
Fig. 3 is a function block schematic diagram of adjusting the motor driving module of output pulse width modulation (PWM) controlling signal of the present invention;
Fig. 4 is the sketch map of an embodiment of the motor driving module of adjusting output pulse width modulation (PWM) controlling signal of the present invention;
Fig. 5 is the output signal sketch map of motor drive of the present invention; And
Fig. 6 is the sketch map that breech lock is forced the motor-driven system of starting device and controlled single-phase motor that has of the present invention;
Fig. 7 is the function block schematic diagram that breech lock of the present invention is forced starting device;
Fig. 8 is the signal sketch map that corresponding breech lock of the present invention is forced starting device.
Fig. 9 is the sketch map of pulse width modulation of the present invention (PWM) controlling signal and charging voltage waveform.
The main element symbol description
10 motor drives
11 comparators
13 triangular wave generators
15 pulse width modulations (PWM) controller
16 oscillators
17 Hall voltages
18 pulse generators
19 breech locks are forced starter
20 external voltages adjustment circuit
30 external frequency regulating circuits
200 output units
210/220 output circuit
300 motors
310 Hall elements
The sw1 switch
Embodiment
For clearly demonstrating the operating process of motor driving module of the present invention, in following declarative procedure, be to be that embodiment explains with the single-phase motor; Yet application of the present invention is not confined to the application of single-phase motor, and it also can use in the application of multi-phase motor.Simultaneously, motor driving module of the present invention the single-phase motor or the multi-phase motor that will drive all identical with present employed motor, so in description, not to single-phase motor or the type of drive of multi-phase motor elaborates.In following explanation, main exposure in detail motor drive of the present invention.
At first, please be the sketch map of motor drive of the present invention and voltage level adjustment earlier with reference to figure 2A and Fig. 2 B.Shown in Fig. 2 A; This outside circuit can be that a resistance of connecting with motor drive 10 is to R1/R2; Wherein first end of resistance R 1 is connected with a voltage; Be connected with first end of resistance R 2 and this voltage can be second end of Hall voltage (VHB) resistance R 1, second end of resistance R 2 then is to be connected with earth point (GND); And then second end of resistance R 1 is connected with a pin of motor drive 10 with first end of resistance R 2; After the voltage that is connected with resistance R 1 first end is fixing, can adjust voltage level (VRS) through the resistance R 1 and the resistance value of resistance R 2, shown in Fig. 2 B.In addition, motor drive 10 also provides pulse width modulation (CPWM) pin and is connected to a capacitor C v; The triangle wave frequency can produce triangular wave through the function that discharges and recharges of this external capacitor C v, so can be adjusted by external capacitor Cv.
Then, please refer to Fig. 3, is the function block schematic diagram of adjusting the motor driving module of output pulse width modulation (PWM) controlling signal of the present invention.As shown in Figure 3, motor driving module of the present invention is made up of a motor drive 10, the formed external circuit of a pair of resistance and the formed external frequency regulating circuit of capacitor; Wherein motor drive 10 comprises: a comparator 11; Its first input end is connected with a resistance R 3; Its second input is connected with a triangular wave generator 13; After process comparator 11 compared two input voltages, comparator 11 was by an output output pulse width modulation (PWM) output voltage signal C
OutPulse width modulation (PWM) the output voltage C that a pulse width modulation (PWM) controller 15, its input and comparator 11 outputs are exported
OutConnect, this pulse width modulation (PWM) controller 15 can be further with pulse width modulation (PWM) output voltage signal C
OutConvert pulse width modulation (PWM) controlling signal behind overvoltage value modulation (Level Shift) to, in order to control a motor drive unit (not being shown among this figure).In one embodiment of this invention, this motor drive 10 can manufacture one have a plurality of pins chip, so resistance R 3 can be as protective circuit that prevents Electrostatic Discharge and current-limiting function; Clearly, motor drive 10 of the present invention also can select not dispose resistance R 3.Simultaneously; In order to make triangular wave generator 13 of the present invention have the function of adjustment triangle wave frequency; So an external frequency regulating circuit 30 further is provided; And the frequency regulating circuit 30 that this is external is connected with triangular wave generator 13 in the motor drive 10, admittedly can adjust the triangular wave frequency of triangular wave generator 13 through this external frequency regulating circuit 30.In addition, to emphasize that in this embodiment pulse width modulation (PWM) controller 15, and its main purpose is to the comparator 11 outputs a pulse width modulation (PWM) output voltage C
out values for voltage modulation (Level Shift), in order to cater for different voltage systems; example 3V 5V or 12V signal into the output.When if system need not adjust voltage, also can pulse width modulation (PWM) controller 15 be omitted.
Following, please refer to Fig. 4, is the sketch map of an embodiment of the motor driving module of adjusting output pulse width modulation (PWM) controlling signal of the present invention.As shown in Figure 4, the connected mode of comparator 11, triangular wave generator 13 and pulse width modulation (PWM) controller 15 of present embodiment in motor drive 10 is identical with Fig. 3; In the present embodiment, be an embodiment and the execution mode thereof that further discloses an applied voltage adjustment circuit and external frequency regulating circuit.
Please continue with reference to figure 4, applied voltage adjustment circuit 20 can be a resistance of connecting with motor drive 10 to R1/R2, wherein first end of resistance R 1 is connected with a voltage, and this voltage can be Hall voltage (VHB); Second end of resistance R 1 is connected with first end of resistance R 2, and second end of resistance R 2 then is to be connected with earth point (GND); And then second end of resistance R 1 is connected with a pin of motor drive 10 with first end of resistance R 2, and this pin is to be connected with the first input end of comparator 11; After the voltage that is connected with resistance R 1 first end is fixing; In response to the different rotating speed demand; Can adjust voltage level (VRS) through the resistance R 1 and the formed bleeder circuit of resistance value of resistance R 2; Wherein, the Hall voltage that is connected with first end of resistance R 1 can be configured in the motor drive 10, and it also can be to be provided by motor drive 10 outside voltage sources; And in a preferred embodiment, Hall voltage is to be configured in the motor drive 10.
Then, the external frequency regulating circuit 30 of present embodiment is a capacitor Cv, and the formed pin of input of the triangular wave generator 13 in this capacitor Cv and the motor drive 10 is connected; Therefore, present embodiment can pass through the selection to the capacitance of capacitor Cv, adjusts the triangle wave frequency that triangular wave generator 13 is produced.
When the resistance of applied voltage adjustment circuit 20 resistance value of R1/R2 and the Hall voltage that is connected with resistance R 1 have all been reached through design definite after, can confirm the voltage level (VRS) of the first input end in the comparator 11; Again after the capacitor Cv of external frequency regulating circuit 30 has also reached definite capacitance through design; Triangular wave generator 13 promptly can produce the triangular wave (being pulse width modulation CPWM signal) of a CF according to the capacitance of capacitor Cv, and is imported by second input of comparator 11.Accordingly, the present invention is a motor drive device 10 of the comparator 11, can be subjected to a first end of the input voltage level (VRS) with the triangular wave generator 13 generates a triangular wave to be cut to produce a pulse width modulation (PWM) of the by comparing the signal output terminal 11 is shown in Figure 5; example, when the triangular wave of a particular frequency is determined, by the voltage level (VRS) and the triangular wave for cutting, when the voltage level (VRS), the closer the high punctual, they cut out a pulse width modulation (PWM) signal duty cycle work (DUTY CYCLE) smaller; And when the voltage level (VRS), the closer low on time, they cut out a pulse width modulation (PWM) work duty cycle signal (DUTY CYCLE) gets.After this pulse width modulation that cuts out (PWM) signal done magnitude of voltage modulation (Level Shift) through pulse width modulation (PWM) controller 15, pulse width modulation (PWM) controlling signal of a promptly exportable control motor rotary speed.Clearly, behind the resistance value of the applied voltage that radiating requirements the designed adjustment circuit 20 through product and the capacitance of external frequency regulating circuit 30, and can produce a specific pulse width modulation (PWM) signal.Therefore; After the design through applied voltage adjustment circuit 20 and external frequency regulating circuit 30; Make motor drive 10 not have micro-control unit to provide under the situation of pulse width modulation (PWM) controlling signal; Also can reach output pulse width modulation (PWM) controlling signal of adjustment motor drive 10, to satisfy the radiating requirements of each product.Likewise, to stress at this, the pulse width modulation in the present embodiment (PWM) controller 15, its topmost purpose is that pulse width modulation (PWM) the news signal with comparator 11 output carries out magnitude of voltage modulation (level Shift), with in response to the different electric pressing system; For example the 3V signal is changed into 5V or the output of 12V; So pulse width modulation (PWM) controller 15 can optionally dispose.
At first please refer to Fig. 6, is the sketch map that breech lock is forced the motor-driven system of starting device and controlled single-phase motor that has of the present invention.As shown in Figure 6, motor-driven system 1 comprises a motor drive 10 and a single-phase motor 300 output units 200; Wherein motor drive 10 is made up of comparator 11, triangular wave generator 13, applied voltage adjustment circuit 20 and 30 of external frequency regulating circuits.When pulse width modulation (PWM) controlling signal that motor drive 10 is exported is delivered in the output unit 200; The formed driving voltage of work responsibility cycle (DUTY CYCLE) through the output of pulse width modulation (PWM) controlling signal comes controlling output circuit 210 and output circuit 220 to provide current to the coil on the motor 300 (for example a kind of single-phase motor), rotates with CD-ROM drive motor 300.Then, the Hall element 310 that is arranged on the motor 300 can be delivered to output unit 200 with the commutation signal of motor 300, in order to judge whether motor 300 continue in rotation.When motor 300 continued after rotation, then continue pulse width modulation (PWM) controlling signal that motor drive 10 is exported is delivered to output unit 200.To stress that at this pulse width modulation (PWM) controlling signal that motor drive 10 in motor-driven system 1 is provided is identical with the embodiment of Fig. 4, repeats no more at this.
In addition, pulse width modulation (PWM) controlling signal that motor drive 10 of the present invention is exported is except can driving single-phase motor 300 running, and it also can be used for controlling three-phase motor; When motor drive 10 of the present invention is used for controlling a three-phase motor; Likewise can pulse width modulation (PWM) controlling signal that motor drive 10 is exported be delivered to the U/V/W coil (not being shown among the figure) on the three-phase motor, promptly can be used to drive three-phase motor and rotate; Because the structure of three-phase motor is identical with prior art, so repeat no more.
Because motor driving module of the present invention is to use in no micromonitor system, whether has started completion so itself can't judge motor, and can only come CD-ROM drive motor with pulse width modulation (PWM) controlling signal that configures; But when just having started owing to motor; Needed starting torque (torque) is bigger, if motor is when being set in slow-revving state, moment (torque) of its starting starting may be not enough; And cause motor when just beginning to start, have the possibility that can't get into smooth.Secondly, after influence or irresistible factor that motor receives external force cause motor to stop, when motor starts again, also can cause motor to start once more because of the relation of starting torque.Therefore, if after can't starter motor, motor driving module still continues except the power that increases consumption, also might cause motor to burn when providing pulse width modulation (PWM) controlling signal to give motor.In order to solve the problem that said motor can't be started, the present invention then provides a kind of circuit that in motor driving module, disposes Fast starting.
When motor driving module of the present invention is used in no microcontroller pattern; Except can reaching the function of adjusting output pulse width modulation (PWM) controlling signal according to product demand; The present invention is the circuit of configuration one breech lock pressure starting in motor driving module further, please refer to shown in Figure 6.As previously mentioned, motor driving module of the present invention is made up of a motor drive 10, a circuit 20 (being that resistance is to R1/R2) and 30 of a frequency regulating circuit that is formed on the adjustment of motor drive 10 external voltages; Wherein motor drive 10 comprises: a comparator 11; Its first input end and resistance are connected in series to R1/R2; Its second input is connected with a triangular wave generator 13; After process comparator 11 compared two input voltages, comparator 11 was by an output output pulse width modulation (PWM) output voltage signal C
OutTo output unit 200, rotate with CD-ROM drive motor 300.Then, breech lock of the present invention forces starting device to comprise a comparator 11, and its first input end is connected with switch sw1, and its second input is connected with a triangular wave generator 13; A breech lock is forced starter 19, and its first input end is connected with a pulse generator 18, and its another input is connected with an oscillator 16, and its output is connected with switch sw1, and is as shown in Figure 6.
Then, please again with reference to figure 7 and Fig. 8, wherein Fig. 7 forces the function block schematic diagram of starting device for breech lock; And Fig. 8 is the signal sketch map that corresponding breech lock is forced starting device.At first; As shown in Figure 7; Please work as motor 300 when normal rotation; Hall element (HALL SENSOR) 310 can make pulse generator 18 produce a pulse wave signal through the Hall voltage signal the normal output of the commutation voltage waveform signal (being also referred to as Hall voltage) that motor 300 rotates, and the pulse wave signal suppresses (RESET) by oscillator 16 formed rolling counters forwards thus; Wherein, the position that pulse generator 18 produces the pulse wave signal is in Hall voltage signal commutation part, and is as shown in Figure 8.In other words, when motor 300 is in normal rotation, just can be suppressed by oscillator 16 formed rolling counters forwards; At this moment; Breech lock is forced the low-voltage signal of starter 19 meeting output potential signals (RD), and therefore, the switch sw1 that is connected with comparator 11 first input ends can not be switched on yet; For example: current potential signal (RD) is delivered to the gate terminal of semiconductor element (NMOS), make semiconductor element (NMOS) be closed (off); Make comparator 11 first input ends maintain the current potential of voltage level (VRS), also make the output of comparator 11 can export a PWM output voltage signal C constantly
OutTo output unit 200, rotate with CD-ROM drive motor 300.
When if motor shuts down; For example: the current potential of the voltage level (VRS) that is provided when motor drive 10 can't overcome the moment (torque) of motor 300 startings; Or motor 300 stops operating etc. because of external force causes motor 300 to be lockable behind normal starting; Because Hall element 310 can't normally be exported Hall voltage waveform signal; Make pulse generator 18 also can't normally export the pulse wave signal; Therefore; Inhibition signal by oscillator 16 formed counters just can disappear, and this hour counter can begin counting, pins (motor-lock) zone like the motor among Fig. 8.In case after time of rolling counters forward surpassed for first preset time; For example: the time of counting was above 0.5 second; This interval scale motor stall is moving, and breech lock forces starter 19 can see the input of the high potential signal of a current potential signal (RD) to switch sw1 off; For example: current potential signal (RD) is delivered to the gate terminal of semiconductor element (NMOS), make semiconductor element (NMOS) be switched on; The conducting that sees through switch sw1 can be reduced to voltage level (VRS) voltage the low-potential state of earth point (being the GND point); Clearly, the comparator 11 of this time time can output pulse width modulation (PWM) output voltage signal C
OutTo output unit 200.
When breech lock forces starter 19 to see a high potential signal (RD) to the input of switch sw1 off, still continue counting by oscillator 16 formed counters, after the time of rolling counters forward surpassed for second preset time; For example: with the second preset time set is the 5-10 time doubly of first preset time; Breech lock forces starter 19 to see the input of an electronegative potential signal (RD) to switch sw1 off, makes that switch sw1 is closed (off), like the release among Fig. 8 (lock-release) zone.At this moment, comparator 11 first input ends can return to the current potential of voltage level (VRS), also make the output of comparator 11 can export a pulse width modulation (PWM) output voltage signal C constantly
OutTo output unit 200, rotate with CD-ROM drive motor 300.Will stress that at this purpose of the setting of second preset time is after will confirming that motor has stopped, voltage level (VRS) voltage that is provided with outside voltage-regulating circuit 20 again comes again CD-ROM drive motor 300 to rotate.
Follow, the present invention provides another can adjust breech lock and forces the starting voltage circuit in the starting device again.As shown in Figure 6 again; The external voltage adjustment circuit 20 that is connected with motor drive 10; Resistance-capacitance (RC) charging circuit that it is made up of the resistance R 1, R2 and the capacitor C 1 that connect; Wherein capacitor C 1 can be organized by a plurality of electric capacity, and this resistance-capacitance (RC) charging circuit can decide the charge constant (RCtime constant) of voltage level (VRS) voltage via the size to resistance or electric capacity.When motor 300 was lockable, breech lock forced starter 19 can see the input of a high potential signal (RD) to switch sw1 off, makes the conducting of switch sw1 voltage level (VRS) voltage can be reduced to the low-potential state of earth point (being the GND point); At this moment, externally form a discharge loop between voltage-regulating circuit 20 and comparator 11 first input ends, make capacitor C 1 can be discharged to earthing potential.Force starter 19 when breech lock and see the input of a low-potential signal (RD) to switch sw1 off, make that switch sw1 is closed (off), at this moment, comparator 11 first input ends can restart to charge to the current potential of voltage level (VRS).
The charge constant of the RC charging circuit of being formed when external voltage adjustment circuit 20 too hour; The RC charging circuit can just charge to voltage level (VRS) voltage very soon; In the time of may causing motor 300 to be forced starter 19 to be reset, produce vibration (vibration) or noise (noise) by breech lock; And this vibration or noise need be avoided for some accurate devices; For example: Blu-ray Disc player etc.; Therefore; Can select the resistance R 1 of external voltage adjustment circuit 20, resistance-capacitance (RC) charging circuit that R2 and C2 formed; Make it have the charge constant of long voltage level (VRS) voltage; At this moment, in the time of promptly can reducing motor 300 and driven again, vibration that is produced or noise.Clearly, the motor driving module 10 of adjusting output pulse width modulation (PWM) controlling signal of the present invention can be adjusted the time constant of its charging according to different application requirements.After voltage level (VRS) is charged to set definite value, will keep certain; So that motor 300 is driven and is reached the tachometer value of previous setting; When next motor is lockable again; Whom just understands repeat above action, please refer to pulse width modulation (PWM) controlling signal of Fig. 9 and the sketch map of charging voltage waveform.
Be purpose more than, and be not intended to limit accurate application form of the present invention, by above instruction or to be done to revise to a certain degree by embodiments of the invention study be possible for illustrating to the explanation of preferred embodiment of the present invention.Therefore, technological thought of the present invention will be decided by following claim and equalization thereof.
Claims (14)
1. the motor driving module of the output pulse width adjusted a modulation controlling signal of not having a microcontroller pattern; This motor driving module is formed at this motor drive outside a voltage-regulating circuit and a frequency regulating circuit by a motor drive, to be formed, being characterized as of this motor driving module:
This motor drive comprises a comparator; It has a first input end and one second input; And this first input end is connected with this external voltage adjustment circuit; Wherein this external voltage adjustment circuit is one by at least one resistance and the formed charging circuit of at least one electric capacity, in order to one first voltage to be provided; And
One triangular wave generator, its output is connected with second input of this comparator, and its input is connected with this frequency regulating circuit, in order to export second input of triangular wave signal to this comparator;
Through this comparator with this first voltage and this triangular wave signal relatively after, export a pulse width modulation controlling signal by the output of this comparator.
2. motor driving module according to claim 1 is characterized in that, this motor drive is a chip.
3. motor driving module according to claim 1 is characterized in that, this frequency regulating circuit is an electric capacity and is formed at this motor drive outside.
4. motor driving module according to claim 2 is characterized in that, this frequency regulating circuit is that an electric capacity and this electric capacity are formed at this chip internal.
5. one kind has the motor driving module that breech lock is forced starting device; It is characterized in that; This motor driving module forces starting device, to be formed at this breech lock by a breech lock to force starting device outside a voltage-regulating circuit and a frequency regulating circuit to be formed, being characterized as of this motor driving module:
This breech lock forces starting device to comprise:
One comparator, it has a first input end and one second input, and this first input end is connected with this an external voltage adjustment circuit and a switch; And
A breech lock is forced starter, and its first input end is connected with a pulse generator, and its another input is connected with an oscillator, and its output is connected with this switch;
Count up to a setting-up time through pulse wave signal that this pulse generator produced and this oscillator and control this breech lock and force starter to export a signal to control this switch, to control the output signal of this comparator.
6. motor driving module according to claim 5 is characterized in that, this switch is a semiconductor element.
7. according to claim 5 or 6 described motor driving module, it is characterized in that it is a chip that this breech lock is forced starting device.
8. motor driving module according to claim 5 is characterized in that, this external voltage adjustment circuit is by at least one resistance and the formed charging circuit of at least one electric capacity.
9. motor control system; It is characterized in that; It is the motor that is connected with this output unit of the output unit and that is connected with this motor driving module of motor driving module, that to adjust output pulse width modulation controlling signal by one; And this motor driving module is made up of a motor drive, external voltage adjustment circuit and the formed frequency regulating circuit of capacitor, and wherein, being characterized as of this motor driving module: motor drive comprises a comparator; It has a first input end and one second input, and this first input end is connected with this an external voltage adjustment circuit and a switch; And
One breech lock is forced starter, and its first input end is connected with a pulse generator, and its another input is connected with an oscillator, and its output is connected with this switch;
Count up to a setting-up time through pulse wave signal that this pulse generator produced and this oscillator and control this breech lock and force starter to export a signal to control this switch, to control the output signal of this comparator;
And when exporting a pulse width modulation controlling signal, this pulse width modulation controlling signal is delivered to this output unit, to drive this revolution through the output of this comparator.
10. motor control system according to claim 9 is characterized in that, this switch is a semiconductor element.
11., it is characterized in that this motor drive is a chip according to claim 9 or 10 described motor control systems.
12. motor control system according to claim 9 is characterized in that, this external voltage adjustment circuit is by at least one resistance and the formed charging circuit of at least one electric capacity.
13. motor control system according to claim 9 is characterized in that, this motor is a single-phase motor.
14. motor control system according to claim 9 is characterized in that, this motor is a three-phase motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010621892.9A CN102545770B (en) | 2010-12-30 | 2010-12-30 | Motor driving module capable of adjusting output pulse width modulation control signal |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010621892.9A CN102545770B (en) | 2010-12-30 | 2010-12-30 | Motor driving module capable of adjusting output pulse width modulation control signal |
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| CN102545770A true CN102545770A (en) | 2012-07-04 |
| CN102545770B CN102545770B (en) | 2014-10-08 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI725790B (en) * | 2020-03-24 | 2021-04-21 | 致新科技股份有限公司 | Motor controller |
| US11171585B2 (en) | 2020-03-25 | 2021-11-09 | Global Mixed-Mode Technology Inc. | Motor controller |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57132780A (en) * | 1981-02-05 | 1982-08-17 | Hitachi Ltd | Starting method for induction motor by pulse width modulation type inverter |
| JPH11206163A (en) * | 1997-12-29 | 1999-07-30 | Sony Corp | Driving controller for motor |
| EP1538735A1 (en) * | 2002-09-13 | 2005-06-08 | Fuji Electric FA Components & Systems Co., Ltd. | Control method of induction motor |
| CN1893254A (en) * | 2005-07-07 | 2007-01-10 | 协禧电机股份有限公司 | Drive circuit of low-noise brush-less DC. fan |
| CN101331675A (en) * | 2005-08-29 | 2008-12-24 | 罗姆股份有限公司 | Motor drive device and electric equipment using this |
| CN101546983A (en) * | 2008-03-27 | 2009-09-30 | 三洋电机株式会社 | Motor drive circuit |
| CN101753071A (en) * | 2008-12-02 | 2010-06-23 | 晶致半导体股份有限公司 | Single-phase motor driving device and driving method thereof |
-
2010
- 2010-12-30 CN CN201010621892.9A patent/CN102545770B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57132780A (en) * | 1981-02-05 | 1982-08-17 | Hitachi Ltd | Starting method for induction motor by pulse width modulation type inverter |
| JPH11206163A (en) * | 1997-12-29 | 1999-07-30 | Sony Corp | Driving controller for motor |
| EP1538735A1 (en) * | 2002-09-13 | 2005-06-08 | Fuji Electric FA Components & Systems Co., Ltd. | Control method of induction motor |
| CN1893254A (en) * | 2005-07-07 | 2007-01-10 | 协禧电机股份有限公司 | Drive circuit of low-noise brush-less DC. fan |
| CN101331675A (en) * | 2005-08-29 | 2008-12-24 | 罗姆股份有限公司 | Motor drive device and electric equipment using this |
| CN101546983A (en) * | 2008-03-27 | 2009-09-30 | 三洋电机株式会社 | Motor drive circuit |
| CN101753071A (en) * | 2008-12-02 | 2010-06-23 | 晶致半导体股份有限公司 | Single-phase motor driving device and driving method thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI725790B (en) * | 2020-03-24 | 2021-04-21 | 致新科技股份有限公司 | Motor controller |
| US11171585B2 (en) | 2020-03-25 | 2021-11-09 | Global Mixed-Mode Technology Inc. | Motor controller |
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| CN102545770B (en) | 2014-10-08 |
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