CN106093775A - Brushless motor driver testing circuit - Google Patents
Brushless motor driver testing circuit Download PDFInfo
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- CN106093775A CN106093775A CN201610370196.2A CN201610370196A CN106093775A CN 106093775 A CN106093775 A CN 106093775A CN 201610370196 A CN201610370196 A CN 201610370196A CN 106093775 A CN106093775 A CN 106093775A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/34—Testing dynamo-electric machines
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- General Physics & Mathematics (AREA)
- Control Of Motors That Do Not Use Commutators (AREA)
Abstract
The present invention provides a kind of brushless motor driver testing circuit, and for brushless motor driver is carried out burn-in test, it includes brushless motor analog circuit, energy-storage module, inversion module and control module.Brushless motor analog circuit connects with corresponding brushless motor driver, for simulating the internal circuit of brushless motor；Energy-storage module carries out storage operation for the electric energy producing brushless motor analog circuit；Inversion module for carrying out inversion process to the unidirectional current of energy-storage module, and the alternating current after inversion process is inputted electrical network；Control module is for controlling the commutating frequency of corresponding brushless motor driver and driving electric current, voltage.Brushless motor driver is detected by the present invention by brushless motor analog circuit and energy-storage module, is reclaimed electric energy by inversion module simultaneously, therefore reduces the cost of manufacture of motor driver.
Description
Technical field
The present invention relates to motor-driven field, particularly relate to a kind of brushless motor driver testing circuit.
Background technology
Along with the development of society, the needs of motor are got more and more by social each field, big to the various vehicles, little arrive
The various Smart Homes of family.Therefore the production manufacturer and the corresponding product user that use motor the most extremely close electrocardio
The job stability of the motor guarantee product that the job stability of motivation, only job stability are high and raising product
The satisfaction of user.
And determine the job stability of motor is the job stability of motor driver.The most existing motor
Driver production firm all can use before motor driver dispatches from the factory this motor driver drive, corresponding motor with
And drag load accordingly, in order to motor driver is carried out burn-in test, thus ensures that the work of motor driver is steady
Qualitative.
But the volume of some high power motor, actuator is very big, and drives the power consumption of this high power motor
Amount is very big, so multiple corresponding motor drivers are carried out burn-in test need to arrange large-area aging region and
Need to consume substantial amounts of electric energy, therefore add the cost of manufacture of the motor driver of existing motor production firm.
Therefore, it is necessary to provide a kind of brushless motor driver testing circuit, to solve the problem existing for prior art.
Summary of the invention
The embodiment of the present invention provides the brushless motor driver inspection of a kind of cost of manufacture reducing motor driver
Slowdown monitoring circuit, the technical problem higher to solve the cost of manufacture of existing motor driver.
The embodiment of the present invention provides a kind of brushless motor driver testing circuit, for entering brushless motor driver
Row burn-in test, comprising:
Brushless motor analog circuit, connects with corresponding brushless motor driver, for simulating brushless motor
Internal circuit；
Energy-storage module, the electric energy for producing brushless motor analog circuit carries out storage operation；
Inversion module, for carrying out inversion process, and by defeated for the alternating current after inversion process to the unidirectional current of energy-storage module
Enter electrical network；And
Control module, for controlling the commutating frequency of corresponding brushless motor driver and driving electric current, voltage.
In brushless motor driver testing circuit of the present invention, described brushless motor driver testing circuit
Also include:
Sample circuit, for detecting the storing electricity of described energy-storage module；Described sample circuit is with described control module even
Connect.
In brushless motor driver testing circuit of the present invention, described brushless motor analog circuit includes
One inductance, the second inductance, the 3rd inductance, the first output diode, the second output diode, the 3rd output diode, first return
Return diode, the second return diode and the 3rd returns diode；
It is first defeated that described first inductance and described first output diode are connected on described brushless motor analog circuit
Enter between end and the first outfan；
It is second defeated that described second inductance and described second output diode are connected on described brushless motor analog circuit
Enter between end and the first outfan；
It is the 3rd defeated that described 3rd inductance and described 3rd output diode are connected on described brushless motor analog circuit
Enter between end and the first outfan；
Described first returns diode is arranged on first input end and second output of described brushless motor analog circuit
Between end；
Described second returns diode is arranged on the second input and second output of described brushless motor analog circuit
Between end；
Described 3rd returns diode is arranged on the 3rd input and described second of described brushless motor analog circuit
Between outfan.
In brushless motor driver testing circuit of the present invention, the positive pole of described first output diode and institute
The first input end stating brushless motor analog circuit connects, the negative pole of described first output diode and described brushless motor
First outfan of analog circuit connects；
The positive pole of described second output diode is connected with the second input of described brushless motor analog circuit, described
The negative pole of the second output diode is connected with the first outfan of described brushless motor analog circuit；
The positive pole of described 3rd output diode is connected with the 3rd input of described brushless motor analog circuit, described
The negative pole of the 3rd output diode is connected with the first outfan of described brushless motor analog circuit；
Described first positive pole returning diode is connected with the second outfan of described brushless motor analog circuit, described
First negative pole returning diode is connected with the first input end of described brushless motor analog circuit；
Described second positive pole returning diode is connected with the second outfan of described brushless motor analog circuit, described
Second negative pole returning diode is connected with the second input of described brushless motor analog circuit；
Described second positive pole returning diode is connected with the second outfan of described brushless motor analog circuit, described
Second negative pole returning diode is connected with the 3rd input of described brushless motor analog circuit.
In brushless motor driver testing circuit of the present invention, the two ends of described first output diode are in parallel
There is the first output capacitance；The two ends of described second output diode are parallel with the second output capacitance, described 3rd output diode
Two ends be parallel with the 3rd output capacitance.
In brushless motor driver testing circuit of the present invention, described first output capacitance and described first electricity
Feel when the second input of described brushless motor analog circuit and the work of the 3rd input, form described simulation brushless electric
Backward voltage on the non-performance loop of machine；
Described second output capacitance and described second inductance described brushless motor analog circuit first input end and
During the 3rd input work, form the backward voltage on the described non-performance loop of simulation brushless motor；
Described 3rd output capacitance and described 3rd inductance described brushless motor analog circuit first input end and
During the second input work, form the backward voltage on the described non-performance loop of simulation brushless motor.
In brushless motor driver testing circuit of the present invention, described energy-storage module is a storage electric capacity, institute
State storage electric capacity positive pole be connected with the first outfan of described brushless motor analog circuit, the negative pole of described storage electric capacity and
Second outfan of described brushless motor analog circuit connects.
In brushless motor driver testing circuit of the present invention, described sample circuit is for including multiple sampling electricity
The voltage of resistance, current collection circuit, the of one end of described voltage x current Acquisition Circuit and described brushless motor analog circuit
One outfan connects, and the other end of described voltage x current Acquisition Circuit is connected with described inversion module, described voltage x current collection
Voltage sampling point and the current sampling point of circuit are connected with described control module.
In brushless motor driver testing circuit of the present invention, described brushless motor drives testing circuit also
Including:
Inversion module controller, is used for controlling described inversion module, and the duty of described inversion module is fed back to
Described control module.
In brushless motor driver testing circuit of the present invention, when the institute of described brushless motor analog circuit
When stating first input end, described energy-storage module and described second input formation loop, described brushless motor analog circuit
Described 3rd input quit work；
When described second input of described brushless motor analog circuit, described energy-storage module and described 3rd input
When end forms loop, the described first input end of described brushless motor analog circuit quits work；
When the described first input end of described brushless motor analog circuit, described energy-storage module and described 3rd input
When end forms loop, described second input of described brushless motor analog circuit quits work.
The brushless motor driver testing circuit of the embodiment of the present invention passes through brushless motor analog circuit and energy storage
Brushless motor driver is detected by module, is reclaimed electric energy by inversion module simultaneously, therefore reduces electronic
The cost of manufacture of machine driver；Solve the technical problem that the cost of manufacture of existing motor driver is higher.
Accompanying drawing explanation
Fig. 1 is the structural representation of the first preferred embodiment of the brushless motor driver testing circuit of the present invention；
Fig. 2 is the structural representation of the second preferred embodiment of the brushless motor driver testing circuit of the present invention；
Fig. 3 is the physical circuit figure of the second preferred embodiment of the brushless motor driver testing circuit of the present invention.
Detailed description of the invention
The explanation of following embodiment is particular implementation that is graphic with reference to add, that implement in order to illustrate the present invention may be used to
Example.
Refer to the structure of the first preferred embodiment of the brushless motor driver testing circuit that Fig. 1, Fig. 1 are the present invention
Schematic diagram.The brushless motor driver testing circuit 10 of this preferred embodiment includes brushless motor analog circuit 11, energy storage
Module 12, inversion module 13 and control module 14.
Brushless motor analog circuit 11 connects with corresponding brushless motor driver 15, is used for simulating brushless motor
Internal circuit.Energy-storage module 12 carries out storage operation for the electric energy producing brushless motor analog circuit 11.Inversion mould
Block 13 for carrying out inversion process to the unidirectional current of energy-storage module 12, and the alternating current after inversion process is inputted electrical network.Control
Module 14 is for controlling the commutating frequency of corresponding brushless motor driver 15 and driving electric current, voltage.
When the brushless motor driver testing circuit 10 of this preferred embodiment uses, first control module 14 is given corresponding
Brushless motor driver 15 arranges corresponding commutating frequency and drives electric current, voltage, subsequently brushless motor driver 15
With above-mentioned commutating frequency and drive electric current, voltage to brushless motor analog circuit 11 provide drive electric current, voltage.
Then the electric energy that brushless motor analog circuit 11 produces carries out storage operation at energy-storage module 12；Work as energy-storage module
After the electricity of 12 storages reaches certain value, inversion module 13 carries out inversion process to the unidirectional current of energy-storage module, and by inversion
Alternating current input electrical network after reason, it is achieved that the recovery of energy.
The brushless motor driver of this preferred embodiment passes through brushless motor analog circuit and energy-storage module to nothing
Brush motor driver carries out ageing management, is reclaimed electric energy by inversion module simultaneously, therefore reduces motor and drives
The cost of manufacture of dynamic device.
Refer to the structure of the second preferred embodiment of the brushless motor driver testing circuit that Fig. 2, Fig. 2 are the present invention
Schematic diagram.The brushless motor driver testing circuit 20 of this preferred embodiment includes brushless motor analog circuit 21, energy storage
Module 22, inversion module 23, sample circuit 24, control module 25 and inversion module controller 26.
Brushless motor analog circuit 21 connects with corresponding brushless motor driver 27, is used for simulating brushless motor
Internal circuit.Energy-storage module 22 carries out storage operation for the electric energy producing brushless motor analog circuit 21.Inversion mould
Block 23 for carrying out inversion process to the unidirectional current of energy-storage module 22, and the alternating current after inversion process is inputted electrical network.Sampling
Circuit 24 is for detecting the storing electricity of energy-storage module 22；Sample circuit 24 is connected with control module 25.Control module 25 is used for
Control the commutating frequency of corresponding brushless motor driver 27 and drive electric current.Inversion module controller 26 is used for controlling inverse
Become module 23, and the duty of inversion module 23 is fed back to control module 25.
Refer to the second preferred embodiment concrete of the brushless motor driver testing circuit that Fig. 3, Fig. 3 are the present invention
Circuit diagram.
This brushless motor analog circuit 21 includes the first inductance L1, the second inductance L2, the 3rd inductance L3, the first output two
Pole pipe D1, the second output diode D2, the 3rd output diode D3, first return diode D4, second return diode D5 with
And the 3rd return diode D6.First inductance L1 and the first output diode D1 is connected on the of brushless motor analog circuit 21
Between one input 211 and the first outfan 214；Second inductance L2 and the second output diode D2 is connected on brushless motor mould
Intend between the second input 212 and first outfan 214 of circuit 21；3rd inductance L3 and the 3rd output diode D3 is connected on
Between 3rd input 213 and first outfan 214 of brushless motor analog circuit 21；First returns diode D4 is arranged on
Between first input end 211 and second outfan 215 of brushless motor analog circuit 21；Second returns diode D5 is arranged on
Between second input 212 and second outfan 215 of brushless motor analog circuit 21；3rd returns diode D6 is arranged on
Between 3rd input 213 and described second outfan 215 of brushless motor analog circuit 21.
The positive pole of the first output diode D1 is connected with the first input end 211 of brushless motor analog circuit 21, and first
The negative pole of output diode D1 is connected with the first outfan 214 of brushless motor analog circuit 21.Second output diode D2
Positive pole be connected with the second input 212 of brushless motor analog circuit 21, the negative pole of the second output diode D2 is with brushless
First outfan 214 of electromotor simulation circuit 21 connects.The positive pole of the 3rd output diode D3 and brushless motor simulation electricity
3rd input 213 on road 21 connects, and the negative pole of the 3rd output diode D3 is defeated with the first of brushless motor analog circuit 21
Go out end 214 connection.First positive pole returning diode D4 is connected with the second outfan 215 of brushless motor analog circuit 21,
First negative pole returning diode D4 is connected with the first input end 211 of brushless motor analog circuit 21.Second returns to two poles
The positive pole of pipe D5 is connected with the second outfan 215 of brushless motor analog circuit 21, second return diode D5 negative pole with
Second input 212 of brushless motor analog circuit 21 connects.Second positive pole returning diode D6 and brushless motor mould
The second outfan 215 intending circuit 21 connects, and second returns the of negative pole and the brushless motor analog circuit 21 of diode D6
Three inputs 213 connect.
The two ends of the first output diode D1 are parallel with the first output capacitance C1；The two ends of the second output diode D2 are in parallel
The second output capacitance C2, the two ends of the 3rd output diode D3 is had to be parallel with the 3rd output capacitance C3.
Energy-storage module 22 is a storage electric capacity, and the positive pole of storage electric capacity exports with the first of brushless motor analog circuit 21
End 214 connection, the negative pole of storage electric capacity is connected with the second outfan 215 of brushless motor analog circuit 21.
Sample circuit 24 is the voltage x current Acquisition Circuit including multiple sampling resistor, one end of voltage x current Acquisition Circuit
It is connected with the first outfan 214 of brushless motor analog circuit 21, the other end of voltage x current Acquisition Circuit and inversion module
23 connect, and voltage sampling point 241 and the current sampling point 242 of voltage x current Acquisition Circuit are connected with control module 25.
When the brushless motor of this preferred embodiment drives testing circuit 20 to use, first control module 25 gives corresponding nothing
Brush motor driver 27 arranges corresponding commutating frequency and drives electric current, and commutating frequency and driving electric current here can be right
Answer the working speed of brushless motor, stop open state, brake hard and positive-negative rotation state etc..
Brushless motor driver 27 with above-mentioned commutating frequency and drives electric current to brushless motor analog circuit subsequently
21 provide driving electric current.Specifically, as first input end 211, the first inductance L1 of brushless motor analog circuit 21, first defeated
Go out diode D1, time energy-storage module 22, second returns diode D5 and the second input 212 forms loop, brushless motor
Driver 27 charges to the storage electric capacity of energy-storage module 22 by the first input end 211 of brushless motor analog circuit 21, this
Time brushless motor analog circuit 21 the 3rd input 213 quit work, the 3rd output capacitance C3 and the 3rd inductance L3 are formed
Backward voltage on the simulation non-performance loop of brushless motor.
When second input the 212, second inductance L2 of brushless motor analog circuit 21, the second output diode D2, storage
When energy module the 22, the 3rd return diode D6 and the 3rd input 213 form loop, brushless motor driver 27 passes through nothing
Second input 212 of brush electromotor simulation circuit 21 gives the storage electric capacity charging of energy-storage module 22, now brushless motor mould
The first input end 211 intending circuit 21 quits work, and the first output capacitance C1 and the first inductance L1 form simulation brushless motor
Backward voltage on non-performance loop.
When the 3rd input the 213, the 3rd inductance L3 of brushless motor analog circuit 21, the 3rd output diode D3, storage
When energy module the 22, first return diode D4 and first input end 211 form loop, brushless motor driver 27 passes through nothing
3rd input 213 of brush electromotor simulation circuit 21 gives the storage electric capacity charging of energy-storage module 22, now brushless motor mould
The second input 212 intending circuit 21 quits work, and the second output capacitance C2 and the second inductance L2 form simulation brushless motor
Backward voltage on non-performance loop.
Then after the electricity of energy-storage module 22 storage reaches certain value, the inversion module 23 unidirectional current to energy-storage module 22
Carry out inversion process, and by the alternating current input electrical network after inversion process, it is achieved that the recovery of energy.
Sample circuit 24 includes voltage sampling point 241 and current sampling point 242 simultaneously, and control module 25 is by detection electricity
Pressure sample point 241, obtains the voltage sampling of energy-storage module 22, thus knows that the simulated machine power of simulation brushless motor is (right
Should the rotating speed of true motor).Control module 25, by current sampling point 242, obtains the current sampling of energy-storage module 22, by electricity
Stream sampling can obtain the simulated machine power change values of simulation brushless motor.
Preferably, the work shape being controlled inversion module 23 and to inversion module 23 understood by inversion module controller 26
State is fed back.As sent shutdown or power on request to inversion module 23, or require that inversion module 23 carries out work with setting power
Make.Inversion module controller 26 also can be by the running voltage of inversion module 23, electric current, power and the whether work such as fault simultaneously
Make feedback of status to control module 25.
So user can not use real motor, it is achieved that the ageing management mistake to brushless motor driver 27
Journey, and detection energy consumption is little, therefore greatly reduces the testing cost of brushless motor driver 27.
The brushless motor driver testing circuit of the embodiment of the present invention passes through brushless motor analog circuit and energy storage
Brushless motor driver is detected by module, is reclaimed electric energy by inversion module simultaneously, therefore reduces electronic
The cost of manufacture of machine driver；Solve the technical problem that the cost of manufacture of existing motor driver is higher.
In sum, although the present invention is disclosed above with preferred embodiment, but above preferred embodiment and be not used to limit
The present invention processed, those of ordinary skill in the art, without departing from the spirit and scope of the present invention, all can make various change and profit
Decorations, therefore protection scope of the present invention defines in the range of standard with claim.
Claims (9)
1. a brushless motor driver testing circuit, for brushless motor driver is carried out burn-in test, its feature
It is, including:
Brushless motor analog circuit, connects with corresponding brushless motor driver, for simulating the inside of brushless motor
Circuit；
Energy-storage module, the electric energy for producing brushless motor analog circuit carries out storage operation；
Inversion module, for carrying out inversion process, and by the alternating current input electricity after inversion process to the unidirectional current of energy-storage module
Net；And
Control module, for controlling the commutating frequency of corresponding brushless motor driver and driving electric current, voltage.
Brushless motor driver testing circuit the most according to claim 1, it is characterised in that described brushless motor drives
Dynamic device testing circuit also includes:
Sample circuit, for detecting the storing electricity of described energy-storage module；Described sample circuit is connected with described control module.
Brushless motor the most according to claim 1 drives testing circuit, it is characterised in that described brushless motor is simulated
Circuit includes the first inductance, the second inductance, the 3rd inductance, the first output diode, the second output diode, the 3rd output two poles
Pipe, the first return diode, the second return diode and the 3rd return diode；
Described first inductance and described first output diode are connected on the first input end of described brushless motor analog circuit
With first between outfan；
Described second inductance and described second output diode are connected on the second input of described brushless motor analog circuit
With first between outfan；
Described 3rd inductance and described 3rd output diode are connected on the 3rd input of described brushless motor analog circuit
With first between outfan；
Described first return diode be arranged on the first input end of described brushless motor analog circuit and the second outfan it
Between；
Described second return diode be arranged on the second input of described brushless motor analog circuit and the second outfan it
Between；
Described 3rd returns diode is arranged on the 3rd input of described brushless motor analog circuit and described second output
Between end.
Brushless motor the most according to claim 3 drives testing circuit, it is characterised in that
The positive pole of described first output diode is connected with the first input end of described brushless motor analog circuit, and described first
The negative pole of output diode is connected with the first outfan of described brushless motor analog circuit；
The positive pole of described second output diode is connected with the second input of described brushless motor analog circuit, and described second
The negative pole of output diode is connected with the first outfan of described brushless motor analog circuit；
The positive pole of described 3rd output diode is connected with the 3rd input of described brushless motor analog circuit, and the described 3rd
The negative pole of output diode is connected with the first outfan of described brushless motor analog circuit；
Described first positive pole returning diode is connected with the second outfan of described brushless motor analog circuit, and described first
The negative pole returning diode is connected with the first input end of described brushless motor analog circuit；
Described second positive pole returning diode is connected with the second outfan of described brushless motor analog circuit, and described second
The negative pole returning diode is connected with the second input of described brushless motor analog circuit；
Described second positive pole returning diode is connected with the second outfan of described brushless motor analog circuit, and described second
The negative pole returning diode is connected with the 3rd input of described brushless motor analog circuit.
Brushless motor the most according to claim 3 drives testing circuit, it is characterised in that described first output diode
Two ends be parallel with the first output capacitance；The two ends of described second output diode are parallel with the second output capacitance, and the described 3rd
The two ends of output diode are parallel with the 3rd output capacitance.
Brushless motor the most according to claim 5 drives testing circuit, it is characterised in that
Described first output capacitance and described first inductance are at second input and the 3rd of described brushless motor analog circuit
During input work, form the backward voltage on the described non-performance loop of simulation brushless motor；
Described second output capacitance and described second inductance are at the first input end and the 3rd of described brushless motor analog circuit
During input work, form the backward voltage on the described non-performance loop of simulation brushless motor；
Described 3rd output capacitance and described 3rd inductance are at the first input end and second of described brushless motor analog circuit
During input work, form the backward voltage on the described non-performance loop of simulation brushless motor.
Brushless motor the most according to claim 1 drives testing circuit, it is characterised in that described energy-storage module is to deposit
Storage electric capacity, the positive pole of described storage electric capacity is connected with the first outfan of described brushless motor analog circuit, described storage electricity
The negative pole held is connected with the second outfan of described brushless motor analog circuit.
Brushless motor the most according to claim 1 drives testing circuit, it is characterised in that described brushless motor drives
Testing circuit also includes:
Inversion module controller, is used for controlling described inversion module, and the duty of described inversion module is fed back to described
Control module.
Brushless motor the most according to claim 3 drives testing circuit, it is characterised in that
When the described first input end of described brushless motor analog circuit, described energy-storage module and described second input shape
When becoming loop, described 3rd input of described brushless motor analog circuit quits work；
When described second input of described brushless motor analog circuit, described energy-storage module and described 3rd input shape
When becoming loop, the described first input end of described brushless motor analog circuit quits work；
When the described first input end of described brushless motor analog circuit, described energy-storage module and described 3rd input shape
When becoming loop, described second input of described brushless motor analog circuit quits work.
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| CN201610370196.2A CN106093775A (en) | 2016-05-27 | 2016-05-27 | Brushless motor driver testing circuit |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106526484A (en) * | 2016-12-15 | 2017-03-22 | 东莞市冠达自动化设备有限公司 | Energy-saving aging system of direct current motor driver and aging method thereof |
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| 郭鸿浩: "《基于永磁无刷直流电动机的风力机模拟系统研究》", 《中国博士学位论文全文数据库 工程科技II辑》 * |
| 黄清军: "《模拟电机特性的电力电子负载研究》", 《中国优秀硕士学位论文全文数据库 工程科技II辑》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106526484A (en) * | 2016-12-15 | 2017-03-22 | 东莞市冠达自动化设备有限公司 | Energy-saving aging system of direct current motor driver and aging method thereof |
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