CN107317535A - Digital motor electricity-saving appliance - Google Patents
Digital motor electricity-saving appliance Download PDFInfo
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- CN107317535A CN107317535A CN201710691859.5A CN201710691859A CN107317535A CN 107317535 A CN107317535 A CN 107317535A CN 201710691859 A CN201710691859 A CN 201710691859A CN 107317535 A CN107317535 A CN 107317535A
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- resistance
- counter
- triode
- voltage
- trigger
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Classifications
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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
- H02P23/00—Arrangements or methods for the control of AC motors characterised by a control method other than vector control
- H02P23/26—Power factor control [PFC]
-
- 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
- H02P2201/00—Indexing scheme relating to controlling arrangements characterised by the converter used
- H02P2201/15—Power factor Correction [PFC] circuit generating the DC link voltage for motor driving inverter
Abstract
A kind of digital motor electricity-saving appliance, including three bidirectional triode thyristors being serially connected on the winding of threephase motor, each bidirectional triode thyristor, which is controlled by corresponding trigger control circuit, each trigger control circuit, has identical line construction, and it includes counter, lock-out pulse Acquisition Circuit, trigger；The count pulse of counter comes to a voltage controlled oscillator, the counting pulse frequency of its output changes therewith when the voltage of voltage controlled oscillator control end changes, lock-out pulse occurs in corresponding line voltage zero passage, the output end that hour counter occurs in lock-out pulse is low level, counter is started counting up after lock-out pulse disappears, the number that counter is counted is high level up to the output end of setting hour counter, makes the corresponding bidirectional triode thyristor conducting of trigger actuation.The phase voltage signal that the control voltage of voltage controlled oscillator control end is exported from a phase detectors, when motor power factor is reduced, reduces terminal voltage of motor, power factor is maintained at suitable scope.
Description
Technical field
The present invention relates to a kind of electric motor electricity saver, the electric motor electricity saver is improved by adjusting the terminal voltage of motor
Power factor during motor running, to reduce the iron loss of motor.
Background technology
When the load of motor is relatively low, the efficiency of motor can reduce i.e. so-called low load with strong power, generally using drop
The method of the terminal voltage of low motor, to reduce the iron loss of motor, improves motor running efficiency；Electricity is connected on by regulation
The angle of flow of bidirectional triode thyristor in motivation, can adjust the terminal voltage of motor；The circuit of control thyristor operating angle has unijunction
Transistor triggers circuit, sawtooth waveforms phase-shift trigger circuit, the common ground of these circuits is to enter line delay using electric capacity（Phase shift）；
Per mutually all must be provided with triggers circuit for threephase motor, electric capacity therein wants perfect match, such three it is two-way can
The angle of flow for controlling silicon could be consistent, and otherwise the three-phase terminal voltage of motor can be uneven, influences its runnability；Common the problem of
It is that capacitance is easily drifted about, makes the angle of flow of three bidirectional triode thyristors inconsistent.
The content of the invention
The invention technical problem to be solved is to provide a kind of digital motor electricity-saving appliance, the digital motor electricity-saving appliance
Each phase triggers circuit share a clock carry out Time-delayed trigger, the terminal voltage of motor balance, it is to avoid electric capacity drift about bring
It is unfavorable, while in the fabrication process simultaneously save capacitance pairing process, improve product quality.
The technical scheme is that, a kind of digital motor electricity-saving appliance, it include being serially connected in threephase motor around
Three bidirectional triode thyristors between group and civil power, wherein the first bidirectional triode thyristor be controlled by the first trigger control circuit, second pair
It is controlled by the second trigger control circuit, the 3rd bidirectional triode thyristor to controllable silicon and is controlled by the 3rd trigger control circuit, it is characterized in that,
Each trigger control circuit has identical line construction, and it includes counter, lock-out pulse Acquisition Circuit, trigger；Input to
The count pulse of each trigger control circuit Counter comes to a voltage controlled oscillator, and the control voltage of voltage controlled oscillator control end changes
Its counting pulse frequency exported changes therewith during change, and the reseting controling end of lock-out pulse Acquisition Circuit output end and counter connects
Connect, the input of the output end of counter and trigger is connected, the control of the output end of trigger and corresponding bidirectional triode thyristor
Input is connected；Lock-out pulse occurs in corresponding line voltage zero passage, and the output end that hour counter occurs in lock-out pulse is low
Level, counter is started counting up after lock-out pulse disappears, and the number that counter is counted is up to the output end of setting hour counter
High level, makes the corresponding bidirectional triode thyristor conducting of trigger actuation.
The characteristics of this digital motor electricity-saving appliance is that the delay of each trigger control circuit is realized by step-by-step counting
, and the pulse signal that the counter of each trigger control circuit is received is the pulse signal that a voltage controlled oscillator is exported, so
It can ensure that the delay of each trigger control circuit is consistent, its output when the control voltage of regulation voltage controlled oscillator control end can change
Pulse frequency, in the case of pulse number identical, high short, the low then delay length of frequency that is then delayed of frequency adjusts voltage controlled oscillator
The angle of flow that the control voltage of control end can change bidirectional triode thyristor changes the terminal voltage of motor.Compared with prior art,
Without capacity cell in this trigger control circuit, it is to avoid because of caused by the capacitance variation angle of flow of bidirectional triode thyristor is inconsistent
The unbalanced problem of terminal voltage of the motor brought, while saving the process of capacitance pairing, improves electric motor electricity saver
Debugging efficiency in production process.
Brief description of the drawings
Fig. 1 is phase detectors and voltage-stabilized power supply circuit schematic diagram of the invention.
Fig. 2 is voltage controlled oscillator and trigger control circuit circuit theory diagrams of the invention.
Embodiment
In conjunction with the embodiment of the brief description of the drawings present invention.
A kind of digital motor electricity-saving appliance, it includes three be serially connected between threephase motor MD winding and civil power
Bidirectional triode thyristor, wherein the first bidirectional triode thyristor, which is controlled by the first trigger control circuit, the second bidirectional triode thyristor, is controlled by second
Trigger control circuit, the 3rd bidirectional triode thyristor are controlled by the 3rd trigger control circuit, it is characterized in that, each trigger control circuit has
Identical line construction, it includes counter, lock-out pulse Acquisition Circuit, trigger；Each trigger control circuit is inputed to fall into a trap
The count pulse of number device comes to a voltage controlled oscillator, the counting arteries and veins of its output when the control voltage of voltage controlled oscillator control end changes
Rush frequency therewith to change, the reseting controling end connection of lock-out pulse Acquisition Circuit output end and counter, the output end of counter
It is connected with the input of trigger, the output end of trigger is connected with the control signal of corresponding bidirectional triode thyristor；Synchronous arteries and veins
Occur when being punched in corresponding line voltage zero passage, the output end that hour counter occurs in lock-out pulse is low level, lock-out pulse disappears
Counter is started counting up afterwards, and the number of rolling counters forward reaches the output end of setting hour counter for high level, trigger actuation
Corresponding bidirectional triode thyristor conducting.
Described voltage controlled oscillator includes time-base integrated circuit IC1, time-base integrated circuit IC1 model NE555, Shi Ji
The pin 4,8 of IC 1 meets operating voltage VDD, and time-base integrated circuit IC1 pin 2,6,7 is in parallel, time-base integrated circuit
IC1 pin 2 is grounded by electric capacity C4, and time-base integrated circuit IC1 pin 2 meets control voltage a UD, Shi Ji by resistance R8
The pin 5 of IC 1 connects potentiometer W2 cursor slide, and potentiometer W2 one end meets operating voltage VDD, current potential by resistance R9
The device W2 other end is grounded by resistance R10, the time-base integrated circuit IC1 output pulse signal of pin 3.Change control voltage UD
Big I change voltage controlled oscillator output counting pulse signal frequency.The frequency counting pulse signal of counting pulse signal
Frequency range may be selected in 100KHZ between 200KHZ, so the angle of flow of each trigger control circuit can be made closer
Unanimously.The function of the voltage controlled oscillator can also be realized using model LM331 electric voltage/frequency converter integrated circuit,
But the frequency range of LM331 electric voltage/frequency converter output is only capable of within 100KHZ, using relatively low frequency range, respectively
Conducting angle error between trigger control circuit, which has, to be increased.
First trigger control circuit includes counter IC2, lock-out pulse Acquisition Circuit, trigger, and counter IC2 is 14
Binary system serial counter integrated circuit, its model CD4020, counter IC2 pin 16 meets operating voltage VDD, counter
IC2 pin 11 connects lock-out pulse Acquisition Circuit output end, and counter IC2 pin 10 connects time-base integrated circuit IC1 pin
3, counter IC2 pin 8 are grounded, and counter IC2 pin 14 is counter IC2 output end；Counter IC2 model
Can be CD4040, each functional pin should correspond to connection during using CD4040.
Lock-out pulse Acquisition Circuit includes bridge rectifier D 1, optocoupler GE1, triode Q3, resistance R11, resistance R12, electricity
R23 is hindered, the input terminated line voltage UAB of bridge rectifier D 1, the positive pole of the output end of bridge rectifier D 1 connects the luminous of optocoupler GE1
The anode of diode, the negative electrode of optocoupler GE1 light emitting diode connects the negative pole of the output end of bridge rectifier D 1 by resistance R23,
The colelctor electrode of optocoupler GE1 phototriode meets operating voltage VDD, and the emitter stage of phototriode connects three poles by resistance R12
Pipe Q3 base stage, triode Q3 grounded emitter, triode Q3 colelctor electrode meets operating voltage VDD, three poles by resistance R11
The pipe Q3 current collection extremely output end of lock-out pulse Acquisition Circuit is connected with counter IC2 pin 11；
Described trigger is made up of triode Q6, optocoupler GE4, resistance R13, resistance R14, and triode Q6 base stage passes through resistance
R13 connects counter IC2 pin 14, triode Q6 grounded emitter, and triode Q6 colelctor electrode connects luminous the two of optocoupler GE4
The negative electrode of pole pipe, the anode of optocoupler GE4 light emitting diode meets operating voltage VDD by resistance R14, and optocoupler GE4 photoelectricity can
The two ends of control silicon are connected with the first bidirectional triode thyristor SCR1 control pole G1 and negative electrode T11 respectively.Described optocoupler can also use one
Pulse transformer is substituted.
First trigger control circuit operation principle is that counter IC2 pins 10 are count pulse input, and count pulse comes
The pin 3 of the instant base IC 1 of output end of voltage controlled oscillator, if the frequency of the pulse signal of voltage controlled oscillator output
For 200KHZ, when the umber of pulse that voltage controlled oscillator is exported is up to 1024, counter IC2 pin 14 is changed into high electricity from low level
It is flat, lock-out pulse Acquisition Circuit only on-Line Voltage UAB zero passages when just one lock-out pulse of output, lock-out pulse is applied to counter
On IC2 pin 11, counter IC2 pin 11 is counter O reset end, and the numerical value counted is reset when lock-out pulse occurs
And stop counting, each terminal count output including counter IC2 pin 14 is all low level, when lock-out pulse disappears
When, counter IC2 is started counting up, when counter IC2 pin 14 is changed into high level, triode Q6 conductings, optocoupler GE4 photoelectricity
Controlled silicon conducting, the first bidirectional triode thyristor SCR1 conductings；The frequency higher first of the pulse signal of voltage controlled oscillator output is two-way
The angle of flow of controllable silicon SCR 1 is bigger, and vice versa.
The circuit of the line construction and the first trigger control circuit of second trigger control circuit and the 3rd trigger control circuit
Structure is identical.
Second trigger control circuit includes counter IC3, lock-out pulse Acquisition Circuit, trigger, counter IC3 pin
10 connect time-base integrated circuit IC1 pin 3；
The lock-out pulse Acquisition Circuit of second trigger control circuit includes bridge rectifier D 2, optocoupler GE2, triode Q4, resistance
R15, resistance R16, resistance R24, the input terminated line voltage UBC of bridge rectifier D 2;
The trigger of second trigger control circuit is made up of triode Q7, optocoupler GE5, resistance R17, resistance R18, optocoupler GE5's
The two ends of optoelectronic controlled silicon are connected with the second bidirectional triode thyristor SCR2 control pole G2 and negative electrode T12 respectively.
3rd trigger control circuit includes counter IC4, lock-out pulse Acquisition Circuit, trigger, counter IC4 pin
10 connect time-base integrated circuit IC1 pin 3；
The lock-out pulse Acquisition Circuit of 3rd trigger control circuit includes bridge rectifier D 3, optocoupler GE3, triode Q5, resistance
R19, resistance R20, resistance R25, the input terminated line voltage UCA of bridge rectifier D 3；
The trigger of 3rd trigger control circuit is made up of triode Q8, optocoupler GE6, resistance R21, resistance R22, optocoupler GE6's
The two ends of optoelectronic controlled silicon are connected with the 3rd bidirectional triode thyristor SCR3 control pole G3 and negative electrode T13 respectively.
The big I for changing control voltage UD changes voltage controlled oscillator frequency of oscillation, the pulse signal of voltage controlled oscillator output
Frequency it is higher, the terminal voltage of motor is higher, and vice versa.
The operating voltage VDD of each trigger control circuit, is provided by a voltage-stabilized power supply, and described voltage-stabilized power supply includes decompression and become
Secondary windings L1, full-wave rectifier QL1, the integrated stable voltage circuit IC5 of depressor, full-wave rectifier QL1 input with it is secondary around
Group L1 connections, the positive pole of full-wave rectifier QL1 output end is grounded by electric capacity C1, and full-wave rectifier QL1 output end is born
Pole is grounded, and the positive pole of full-wave rectifier QL1 output end connects integrated stable voltage circuit IC5 pin 1, integrated stable voltage circuit IC5's
Pin 2 is grounded, and integrated stable voltage circuit IC5 pin 3 is grounded by electric capacity C2, integrated stable voltage circuit IC5 pin output services
Voltage VDD, integrated stable voltage circuit IC5 model 7812.
Described control voltage UD can be obtained so, and voltage on operating voltage VDD, potentiometer slider is connect with a potentiometer
As control voltage UD, regulation cursor slide position can change control voltage UD size；For realize motor terminal voltage it is automatic
Control, described control voltage UD can be obtained by a phase detectors and an anti-phase computing circuit.
Described phase detectors include step-down transformer B1, current transformer LH, step-down transformer B1 primary coil
Wiring voltage UBC, current transformer LH primary coil and motor a phase windings are in series, current transformer LH secondary wire
Circle connects the primary coil of a signal transformer B2, and the Same Name of Ends of signal transformer B2 secondary coils terminates triode Q1 base stage,
Another termination triode Q2 of signal transformer B2 secondary coils base stage, triode Q1 colelctor electrode connects step-down transformer B1 times
Level coil L2 Same Name of Ends, triode Q2 colelctor electrode connects the step-down transformer B1 secondary coils L2 other end, triode Q1, three
Pole pipe Q2 emitter stage is connected, and triode Q1 emitter stages are taken out by the resistance R1 centers for meeting step-down transformer B1 secondary coils L2
Head, step-down transformer B1 secondary coils L2 centre cap ground connection, triode Q1 emitter stages connect signal transformer by resistance R2
The centre cap of B2 secondary coils, triode Q1 emitter stages connect voltage-stabiliser tube DW1 negative electrode, pressure pipe DW1 plus earth, triode
Q1 emitter stages connect electric capacity C3 positive pole by resistance R3, and electric capacity C3 negative pole ground connection, electric capacity C3 positive pole exports a phase voltage
UD’；Phase detectors can detect phase, the phase voltage UD ' improved using such line construction in positive and negative half-wave
Smoothness, sensitivity and anti-odd harmonic jamming performance, while making line construction simple, less using component.
Anti-phase computing circuit is made up of operational amplifier A 1, resistance R4, R5, R6, R7, and electric capacity C3 positive pole meets potentiometer W1
One end, potentiometer W1 other end ground connection, potentiometer W1 cursor slide connects the anti-phase input of operational amplifier A 1 by resistance R4
End, bridging has resistance R7, the in-phase input end of operational amplifier A 1 between the inverting input and output end of operational amplifier A 1
Operating voltage VDD is connect by resistance R5, the in-phase input end of operational amplifier A 1 is grounded by resistance R6, operational amplifier A 1
Output end connects time-base integrated circuit IC1 pin 2 by resistance R8, and the voltage of the output end of operational amplifier A 1 is control voltage
UD。
Its Automatic Control Theory is, the phase angle between phase voltage UD ' and line voltage UBC, motor phase current Ia into
Proportional relation, operational amplifier A 1 constitutes an anti-phase computing circuit, phase voltage UD ' rise lucks with resistance R4, R5, R6, R7
The voltage for calculating amplifier A1 outputs reduces, and vice versa；Power factor ↓ → phase angle ↑ → phase voltage when motor running
Terminal voltage ↓ → power of frequency ↓ → motor of the pulse signal of UD ' ↑ → control voltage UD ↓ → voltage controlled oscillator output because
Number ↑.Regulation potentiometer W1 can set power factor during motor running, and set power factor is equal to the specified of motor
Power factor.
Claims (4)
1. a kind of digital motor electricity-saving appliance, its include being serially connected between the winding of threephase motor and civil power three is two-way
Controllable silicon, wherein the first bidirectional triode thyristor, which is controlled by the first trigger control circuit, the second bidirectional triode thyristor, is controlled by the second triggering
Control circuit, the 3rd bidirectional triode thyristor are controlled by the 3rd trigger control circuit, it is characterized in that, each trigger control circuit has identical
Line construction, it includes counter, lock-out pulse Acquisition Circuit, trigger；Input to each trigger control circuit Counter
Count pulse come to a voltage controlled oscillator, the count pulse frequency of its output when the control voltage of voltage controlled oscillator control end changes
Rate changes therewith, the reseting controling end connection of lock-out pulse Acquisition Circuit output end and counter, and the output end of counter is with touching
The input connection of device is sent out, the output end of trigger is connected with the control signal of corresponding bidirectional triode thyristor；Lock-out pulse exists
Occur during corresponding line voltage zero passage, the output end that hour counter occurs in lock-out pulse is low level, lock-out pulse is counted after disappearing
Number device is started counting up, and the number that counter is counted is high level up to the output end of setting hour counter, makes trigger actuation pair
The bidirectional triode thyristor conducting answered.
2. digital motor electricity-saving appliance according to claim 1, it is characterized in that, base when described voltage controlled oscillator includes
IC 1, time-base integrated circuit IC1 model NE555, time-base integrated circuit IC1 pin 4,8 connects operating voltage
VDD, time-base integrated circuit IC1 pin 2,6,7 are in parallel, and time-base integrated circuit IC1 pin 2 is grounded by electric capacity C4, Shi Ji
The pin 2 of IC 1 meets a control voltage UD by resistance R8, and time-base integrated circuit IC1 pin 5 connects potentiometer W2's
Cursor slide, potentiometer W2 one end meets operating voltage VDD by resistance R9, and the potentiometer W2 other end is grounded by resistance R10, when
The output pulse signal of pin 3 of base IC 1；The big I for changing control voltage UD changes the arteries and veins of voltage controlled oscillator output
The frequency of signal is rushed, frequency range is in 100KHZ between 200KHZ.
3. digital motor electricity-saving appliance according to claim 2, it is characterized in that, the first trigger control circuit includes counting
Device IC2, lock-out pulse Acquisition Circuit, trigger, counter IC2 are 14 binary system serial counter integrated circuits, its model
For CD4020, counter IC2 pin 16 meets operating voltage VDD, and it is defeated that counter IC2 pin 11 connects lock-out pulse Acquisition Circuit
Go out end, counter IC2 pin 10 connects time-base integrated circuit IC1 pin 3, and counter IC2 pin 8 is grounded, counter IC2
Pin 14 be counter IC2 output end；
Lock-out pulse Acquisition Circuit includes bridge rectifier D 1, optocoupler GE1, triode Q3, resistance R11, resistance R12, resistance
R23, the input terminated line voltage UAB of bridge rectifier D 1, the positive pole of the output end of bridge rectifier D 1 connect luminous the two of optocoupler GE1
The anode of pole pipe, the negative electrode of optocoupler GE1 light emitting diode connects the negative pole of the output end of bridge rectifier D 1, light by resistance R23
The colelctor electrode of coupling GE1 phototriode meets operating voltage VDD, and the emitter stage of phototriode connects triode by resistance R12
Q3 base stage, triode Q3 grounded emitter, triode Q3 colelctor electrode meets operating voltage VDD, triode by resistance R11
The Q3 current collection extremely output end of lock-out pulse Acquisition Circuit is connected with counter IC2 pin 11；
Described trigger is made up of triode Q6, optocoupler GE4, resistance R13, resistance R14, and triode Q6 base stage passes through resistance
R13 connects counter IC2 pin 14, triode Q6 grounded emitter, and triode Q6 colelctor electrode connects luminous the two of optocoupler GE4
The negative electrode of pole pipe, the anode of optocoupler GE4 light emitting diode meets operating voltage VDD by resistance R14, and optocoupler GE4 photoelectricity can
The two ends of control silicon are connected with the first bidirectional triode thyristor SCR1 control pole G1 and negative electrode T11 respectively；
The line construction of the line construction and the first trigger control circuit of second trigger control circuit and the 3rd trigger control circuit
It is identical；
Second trigger control circuit includes counter IC3, lock-out pulse Acquisition Circuit, trigger, and counter IC3 pin 10 connects
Time-base integrated circuit IC1 pin 3；
The lock-out pulse Acquisition Circuit of second trigger control circuit includes bridge rectifier D 2, optocoupler GE2, triode Q4, resistance
R15, resistance R16, resistance R24, the input terminated line voltage UBC of bridge rectifier D 2；
The trigger of second trigger control circuit is made up of triode Q7, optocoupler GE5, resistance R17, resistance R18, optocoupler GE5's
The two ends of optoelectronic controlled silicon are connected with the second bidirectional triode thyristor SCR2 control pole G2 and negative electrode T12 respectively；
3rd trigger control circuit includes counter IC4, lock-out pulse Acquisition Circuit, trigger, and counter IC4 pin 10 connects
Time-base integrated circuit IC1 pin 3；
The lock-out pulse Acquisition Circuit of 3rd trigger control circuit includes bridge rectifier D 3, optocoupler GE3, triode Q5, resistance
R19, resistance R20, resistance R25, the input terminated line voltage UCA of bridge rectifier D 3；
The trigger of 3rd trigger control circuit is made up of triode Q8, optocoupler GE6, resistance R21, resistance R22, optocoupler GE6's
The two ends of optoelectronic controlled silicon are connected with the 3rd bidirectional triode thyristor SCR3 control pole G3 and negative electrode T13 respectively.
4. digital motor electricity-saving appliance according to claim 2, it is characterized in that, described control voltage UD passes through a phase
Bit detector and an anti-phase computing circuit are obtained；
Described phase detectors include step-down transformer B1, current transformer LH, step-down transformer B1 primary coil wiring
Voltage UBC, current transformer LH primary coil and motor A phase windings are in series, and current transformer LH secondary coil connects
One signal transformer B2 primary coil, the Same Name of Ends termination triode Q1 of signal transformer B2 secondary coils base stage, signal
Another termination triode Q2 of transformer B2 secondary coils base stage, triode Q1 colelctor electrode connects step-down transformer B1 secondary wires
L2 Same Name of Ends is enclosed, triode Q2 colelctor electrode connects the step-down transformer B1 secondary coils L2 other end, triode Q1, triode
Q2 emitter stage is connected, and triode Q1 emitter stages connect step-down transformer B1 secondary coils L2 centre cap by resistance R1,
Step-down transformer B1 secondary coils L2 centre cap ground connection, triode Q1 emitter stages connect signal transformer B2 times by resistance R2
The centre cap of level coil, triode Q1 emitter stages connect voltage-stabiliser tube DW1 negative electrode, pressure pipe DW1 plus earth, triode Q1 hairs
Emitter-base bandgap grading connects electric capacity C3 positive pole by resistance R3, and electric capacity C3 negative pole ground connection, electric capacity C3 positive pole exports a phase voltage UD '；
Anti-phase computing circuit is made up of operational amplifier A 1, resistance R4, R5, R6, R7, and electric capacity C3 positive pole connects the one of potentiometer W1
End, potentiometer W1 other end ground connection, potentiometer W1 cursor slide is connect the inverting input of operational amplifier A 1 by resistance R4, transported
Bridging has resistance R7 between calculating amplifier A1 inverting input and output end, and the in-phase input end of operational amplifier A 1 passes through electricity
Resistance R5 meets operating voltage VDD, and the in-phase input end of operational amplifier A 1 is grounded by resistance R6, the output end of operational amplifier A 1
Time-base integrated circuit IC1 pin 2 is connect by resistance R8, the voltage of the output end of operational amplifier A 1 is control voltage UD.
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2131251Y (en) * | 1992-07-12 | 1993-04-28 | 金丽生 | Multifunctional electricity-saving speed-regulator for ceiling fans |
| CN2389442Y (en) * | 1999-09-20 | 2000-07-26 | 唐山市海华陶瓷有限公司海华节能新技术研究所 | Phase-shifting type motor electricity-saving device |
| CN202170415U (en) * | 2011-06-17 | 2012-03-21 | 福州职业技术学院 | Energy-saving circuit of motor of industrial sewing machine under cycle control |
| CN103312130A (en) * | 2013-07-01 | 2013-09-18 | 湖南工业大学 | Bidirectional thyristor trigger circuit and method |
| CN204244208U (en) * | 2014-11-11 | 2015-04-01 | 佛山市宝星科技发展有限公司 | With the high reliability six pulse SCR rectification phase-shift circuit that VCO and counter are formed |
| CN104638995A (en) * | 2013-11-13 | 2015-05-20 | 成都博元时代软件有限公司 | Motor driving circuit |
| CN207200610U (en) * | 2017-08-14 | 2018-04-06 | 高玉琴 | Digital motor electricity-saving appliance |
-
2017
- 2017-08-14 CN CN201710691859.5A patent/CN107317535B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2131251Y (en) * | 1992-07-12 | 1993-04-28 | 金丽生 | Multifunctional electricity-saving speed-regulator for ceiling fans |
| CN2389442Y (en) * | 1999-09-20 | 2000-07-26 | 唐山市海华陶瓷有限公司海华节能新技术研究所 | Phase-shifting type motor electricity-saving device |
| CN202170415U (en) * | 2011-06-17 | 2012-03-21 | 福州职业技术学院 | Energy-saving circuit of motor of industrial sewing machine under cycle control |
| CN103312130A (en) * | 2013-07-01 | 2013-09-18 | 湖南工业大学 | Bidirectional thyristor trigger circuit and method |
| CN104638995A (en) * | 2013-11-13 | 2015-05-20 | 成都博元时代软件有限公司 | Motor driving circuit |
| CN204244208U (en) * | 2014-11-11 | 2015-04-01 | 佛山市宝星科技发展有限公司 | With the high reliability six pulse SCR rectification phase-shift circuit that VCO and counter are formed |
| CN207200610U (en) * | 2017-08-14 | 2018-04-06 | 高玉琴 | Digital motor electricity-saving appliance |
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| Publication number | Publication date |
|---|---|
| CN107317535B (en) | 2023-09-19 |
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