CN206023629U - Motor-drive circuit - Google Patents
Motor-drive circuit Download PDFInfo
- Publication number
- CN206023629U CN206023629U CN201621012711.1U CN201621012711U CN206023629U CN 206023629 U CN206023629 U CN 206023629U CN 201621012711 U CN201621012711 U CN 201621012711U CN 206023629 U CN206023629 U CN 206023629U
- Authority
- CN
- China
- Prior art keywords
- module
- electric capacity
- audion
- power factor
- inductance
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/10—Technologies improving the efficiency by using switched-mode power supplies [SMPS], i.e. efficient power electronics conversion e.g. power factor correction or reduction of losses in power supplies or efficient standby modes
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- Control Of Motors That Do Not Use Commutators (AREA)
Abstract
The utility model discloses a kind of motor-drive circuit, including rectification module Z1, power factor correction module, snubber module and control chip, the input of the rectification module Z1 is connected with alternating current power supply, the outfan of the rectification module is parallel with filter capacitor C1, resistance R1 is in parallel with electric capacity C1 after connecting with R2, the outfan of the rectification module is connected with the power factor correction module, the power factor correction module is in parallel with the snubber module, the outfan of the power factor correction module is connected with DC brushless motor M by audion Q1, the control chip is connected with the power factor correction module by the first drive module, the control chip is connected with the base stage of the audion Q1 by the second drive module.This utility model improves power factor.
Description
Technical field
This utility model is related to motor, is specifically related to a kind of motor-drive circuit.
Background technology
Brshless DC motor had not only maintained the good speed adjusting performance of Traditional DC motor but also there is fricton-tight contact and commutation
Spark, reliability height, long service life and low noise advantages, thus in Aero-Space, Digit Control Machine Tool, robot, electronic vapour
The aspects such as car, computer peripheral and household electrical appliance are all applied widely.Motor due to being inductive load, according to straight
The mode of driving is connect, system power factor can be very low, causes the waste of the energy.
Utility model content
For the defect of prior art, this utility model provides a kind of motor-drive circuit.
A kind of motor-drive circuit, including rectification module Z1, power factor correction module, snubber module and control core
Piece, the input of the rectification module Z1 are connected with alternating current power supply, and the outfan of the rectification module is parallel with filter capacitor C1,
Resistance R1 is in parallel with electric capacity C1 after connecting with R2, and the outfan of the rectification module is connected with the power factor correction module,
The power factor correction module is in parallel with the snubber module, and the outfan of the power factor correction module passes through
Audion Q1 is connected with DC brushless motor M, and the control chip is by the first drive module and the PFC mould
Block is connected, and the control chip is connected with the base stage of the audion Q1 by the second drive module.
Optionally, the power factor correction module includes inductance L1, audion Q1, inductance L2, diode D1 and electric capacity
C4, one end of the inductance L1 are connected with the rectification module Z1, and the other end is connected with the colelctor electrode of the audion Q1, described
The grounded emitter of audion Q1, the base stage of audion Q1 are connected with the control chip by first drive module, institute
State in parallel with audion Q1 after inductance L2 is connected with resistance R3, electric capacity C2, inductance L1 is connected with the anode of diode D1, diode
The negative electrode of D1 is connected with one end of electric capacity C4, the other end of electric capacity C4 ground connection, resistance R4 connect with resistance R5 after with the electric capacity
C4 is in parallel.The snubber circuit includes that inductance L3, resistance R6 and electric capacity C3, inductance L3, resistance R6 and electric capacity C3 are gone here and there successively
The two ends of the diode D1 are parallel to after connection connection
The beneficial effects of the utility model are：The power factor of system is improve by adding power factor correction module,
Electromagnetic interference signal can be caused to decay rapidly by increasing snubber circuit, Electro Magnetic Compatibility is good.
Description of the drawings
Fig. 1 is the structural representation of this utility model drive circuit.
Specific embodiment
Understandable for enabling above-mentioned purpose of the present utility model, feature and advantage to become apparent from, below in conjunction with the accompanying drawings to this
The specific embodiment of utility model is described in detail, and incites somebody to action above and other purpose of the present utility model, feature and advantage
Become apparent from.In whole accompanying drawings, identical reference indicates identical part.Not deliberately accompanying drawing drawn to scale, emphasis
It is purport of the present utility model is shown.
As shown in figure 1, a kind of motor-drive circuit, including rectification module Z1, power factor correction module, snubber mould
Block and control chip, the input of the rectification module Z1 are connected with alternating current power supply, and the outfan of the rectification module is parallel with
Filter capacitor C1, resistance R1 are in parallel with electric capacity C1 after connecting with R2, the outfan of the rectification module and the power factor school
Positive module is connected, and the power factor correction module is in parallel with the snubber module, the power factor correction module
Outfan be connected with DC brushless motor M by audion Q1, the control chip is by the first drive module and the work(
Rate factor correcting module is connected, and the control chip is connected with the base stage of the audion Q1 by the second drive module.Described
Power factor correction module includes inductance L1, audion Q1, inductance L2, diode D1 and electric capacity C4, one end of the inductance L1
It is connected with the rectification module Z1, the other end is connected with the colelctor electrode of the audion Q1, the emitter stage of the audion Q1 connects
Ground, the base stage of audion Q1 is connected with the control chip by first drive module, the inductance L2 and resistance R3, electricity
In parallel with audion Q1 after appearance C2 series connection, inductance L1 is connected with the anode of diode D1, and the negative electrode of diode D1 is with electric capacity C4's
One end connects, and the other end ground connection of electric capacity C4, resistance R4 are in parallel with the electric capacity C4 after connecting with resistance R5.The snubber
Circuit includes that inductance L3, resistance R6 and electric capacity C3, inductance L3, resistance R6 and electric capacity C3 are parallel to described two after being sequentially connected in series
The two ends of pole pipe D1.
During this is new, exchange is changed into direct current by rectifier bridge Z1, electric capacity C1 to rectification after output carry out smothing filtering, resistance
R1 and R2 constitutes bleeder circuit, for detecting that the output voltage of rectifier bridge Z1, resistance R7 are used for detecting bus current, control chip
According to the voltage for detecting and Current calculation power factor, according to the conducting and cut-off of this power factor controlling Q1, inductance L1
Energy is stored when Q1 is turned on, when Q1 ends, the voltage induced on inductance L1, by fast recovery diode D1 to big electrolysis
Electric capacity C4 charges, and exports energy.As switching tube Q1 is in turn-on and turn-off moment, D1 in forward conduction and Reverse recovery moment,
Huge Di/Dt and Du/Dt will be produced, switching moments energy can be propagated with conductive form, and with the factor shape such as distribution capacity
Into loop is propagated, cause electromagnetic compatibility EMC exceeded, when serious, can also affect circuit function.Therefore this utility model increased slow
Absorption module is rushed, it is in series by two groups of inductance (L2, L3), resistance (R3, R6) and electric capacity (C2, C3), power factor school
Positive module and snubber module, constitute series resonant circuit, and energy in energy and electric capacity C2, C3 in inductance L2, L3, vibration decline
Subtract.Control chip is by controlling the PWM duty cycle of Q2 come the rotating speed of controlled motor M.
Elaborate a lot of details in order to fully understanding this utility model in the above description.But above description
Only it is preferred embodiment of the present utility model, this utility model can be with much next different from alternate manner described here
Implement, therefore this utility model is not embodied as being limited by disclosed above.Any those skilled in the art exist simultaneously
Under without departing from technical solutions of the utility model ambit, the methods and techniques content all using the disclosure above is new to this practicality
Type technical scheme makes many possible variations and modification, or the Equivalent embodiments for being revised as equivalent variations.Every without departing from this
The content of utility model technical scheme, any simply repaiies to made for any of the above embodiments according to technical spirit of the present utility model
Change, equivalent variations and modification, still fall within the range of technical solutions of the utility model protection.
Claims (3)
1. a kind of motor-drive circuit, it is characterised in that including rectification module Z1, power factor correction module, snubber mould
Block and control chip, the input of the rectification module Z1 are connected with alternating current power supply, and the outfan of the rectification module is parallel with
Filter capacitor C1, resistance R1 are in parallel with electric capacity C1 after connecting with R2, the outfan of the rectification module and the power factor school
Positive module is connected, and the power factor correction module is in parallel with the snubber module, the power factor correction module
Outfan be connected with DC brushless motor M by audion Q1, the control chip is by the first drive module and the work(
Rate factor correcting module is connected, and the control chip is connected with the base stage of the audion Q1 by the second drive module.
2. motor-drive circuit according to claim 1, it is characterised in that the power factor correction module includes inductance
L1, audion Q1, inductance L2, diode D1 and electric capacity C4, one end of the inductance L1 are connected with the rectification module Z1, another
End is connected with the colelctor electrode of the audion Q1, the grounded emitter of the audion Q1, and the base stage of audion Q1 is by described
First drive module is connected with the control chip, and the inductance L2 is in parallel with audion Q1 after connecting with resistance R3, electric capacity C2,
Inductance L1 is connected with the anode of diode D1, and the negative electrode of diode D1 is connected with one end of electric capacity C4, another termination of electric capacity C4
Ground, resistance R4 are in parallel with the electric capacity C4 after connecting with resistance R5.
3. motor-drive circuit according to claim 2, it is characterised in that the snubber circuit include inductance L3,
Resistance R6 and electric capacity C3, inductance L3, resistance R6 and electric capacity C3 are parallel to the two ends of the diode D1 after being sequentially connected in series.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621012711.1U CN206023629U (en) | 2016-08-30 | 2016-08-30 | Motor-drive circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621012711.1U CN206023629U (en) | 2016-08-30 | 2016-08-30 | Motor-drive circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206023629U true CN206023629U (en) | 2017-03-15 |
Family
ID=58256045
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621012711.1U Expired - Fee Related CN206023629U (en) | 2016-08-30 | 2016-08-30 | Motor-drive circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206023629U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108319306A (en) * | 2018-01-26 | 2018-07-24 | 德施普科技发展温州有限公司 | A kind of chamber temperature control system |
-
2016
- 2016-08-30 CN CN201621012711.1U patent/CN206023629U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108319306A (en) * | 2018-01-26 | 2018-07-24 | 德施普科技发展温州有限公司 | A kind of chamber temperature control system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170315 Termination date: 20170830 |