CN2930090Y - High precision Dc brushless motor controller - Google Patents
High precision Dc brushless motor controller Download PDFInfo
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- CN2930090Y CN2930090Y CNU2006201061361U CN200620106136U CN2930090Y CN 2930090 Y CN2930090 Y CN 2930090Y CN U2006201061361 U CNU2006201061361 U CN U2006201061361U CN 200620106136 U CN200620106136 U CN 200620106136U CN 2930090 Y CN2930090 Y CN 2930090Y
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Abstract
The utility model belongs to the generator control and protection field, in particular to a high precision direct current brushless generator controller controlling the generator driving with intelligence, protective effects to overflow, overpressure and underpressure which comprises a driving circuit connected with the three phase winding of the generator, a singlechip connected with a position sensor of the direct current generator and a power supply switching circuit providing the operational power of the whole control circuit. The singlechip is connected with the driving circuit. The power supply switching circuit is connected with the input interface of the direct current power supply. The operational program of the controller is stored in the singlechip. The high precision direct current brushless generator controller can precisely control and drive the generator, launch dynamic real-time supervision towards the generator, effectively protect the generator and resolve the technical problem of incapable dynamic real-time supervision towards the generator, inaccurate control and unreliable protection.
Description
Technical field
The utility model belongs to Electric Machine Control and protection field, relates in particular to a kind of intellectuality that both had, and has the motor-driven high accuracy DC brushless motor controller of control of overcurrent, overvoltage, under-voltage protection effect again.
Background technology
Because the phenomenon of motor overload, spread of voltage appears in the instability of industrial and mining enterprises' production process unavoidably, also motor rotation blockage, short circuit can occur sometimes, so that causes burn-down of electric motor, equipment stall, safety is produced, is jeopardized in influence.The protected mode of the motor that present industrial and mining enterprises are used is the thermal relay protected mode; this mode can't collect the current value of motor; can't realize dynamic real-time monitor, and this class device technique falls behind, not high control and the protection that can't finish reliably motor of accuracy to motor.
Summary of the invention
The main main purpose of the utility model is to provide a kind of control exactly and drive motors, motor is carried out dynamic real-time monitor, effectively protects the DC brushless motor controller of motor; solved and can't carry out dynamic real-time monitor motor, control inaccurate, protect insecure technical problem.
Above-mentioned technical problem of the present utility model is mainly solved by following technical proposals: the utility model comprises the drive circuit that links to each other with motor three phase windings, also comprise single-chip microcomputer that links to each other with the position transducer of direct current machine and the power converting circuit that working power is provided for entire controller, single-chip microcomputer links to each other with described drive circuit, described power converting circuit links to each other with the DC power supply input interface, the working procedure of described single-chip microcomputer internal memory contain controller.The DC power supply input interface connects outside DC power supply, single-chip microcomputer with the signal of the position transducer of the motor that receives through the working procedure analysis of inside storage, handle the output control signal and give drive circuit, go the running of drive motors three phase windings again by drive circuit, realization is to the dynamic real-time monitor of motor, carry out the analysis and the processing of signal by single-chip microcomputer, precision improves greatly, thereby the reliability of machine operation is improved greatly.
As preferably, also be connected with current sample/testing circuit on the described drive circuit, described current sample/testing circuit links to each other with described single-chip microcomputer again.Current value on current sample/testing circuit sampling drive circuit is also planted comparison with standard and is detected; output signal to single-chip microcomputer then; as overcurrent; single-chip microcomputer handles the output control signal through internal processes and cuts out drive circuit; motor shuts down, otherwise single-chip microcomputer output control signal works on drive circuit; motor remains in operation, and realizes the overcurrent protection of motor.
As preferably, also be connected with overvoltage/under-voltage protecting circuit on the described single-chip microcomputer, described overvoltage/under-voltage protecting circuit links to each other with described DC power supply input interface again.Overvoltage/under-voltage protecting circuit detects the DC power supply of input; as the DC power supply value of being above standard or be lower than standard value; then overvoltage/under-voltage protecting circuit outputs signal to single-chip microcomputer; single-chip microcomputer is handled through internal processes, and the output control signal is closed drive circuit, and motor shuts down; otherwise; single-chip microcomputer output control signal works on drive circuit, and motor remains in operation, and realizes overvoltage, the overcurrent protection of motor.
As preferably, described single-chip microcomputer adopts the PIC18F2331 single-chip microcomputer, and 4,5,6 pin link to each other with the position transducer of motor, and its 13～17 pin connects motor control signal, and its 21～26 pin connects described drive circuit; Described drive circuit divides three groups of A, B, C, form by a chip I R2101 and two field effect transistor for every group, 21,22 pin of PIC18F2331 single-chip microcomputer connect 2,3 pin of chip UA1,5 pin of UA1 connect the grid of field effect transistor QAL1 through resistance R 24,7 pin of UA1 connect the grid of field effect transistor QAH1 through resistance R 23, the source electrode of two field effect transistor connects together with 6 pin of UA1 and links to each other to winding with the A of motor, and connection that B, C are two groups and A category are seemingly.It is convenient to realize, stable performance, reliability height.
As preferably, described current sample/testing circuit is made up of sampling resistor RF1 and amplifier U3A, ground connection of resistance R F1, and the other end links to each other with the drain electrode of field effect transistor QAL1, QBL1, QCL1, connect 3 pin of U3A then through resistance R 29,1 pin of U3A links to each other with described single-chip microcomputer.
As preferably, described overvoltage/under-voltage protecting circuit is made up of two amplifier U2A, U2B, the output pin of U2A, U2B connects together and links to each other with described single-chip microcomputer, and the forward input pin of U2A links to each other with the DC power supply input interface through resistance R 14, forms under-voltage protecting circuit; The negative sense input pin of U2B links to each other with the DC power supply input interface through resistance R 15, forms under-voltage protecting circuit.
The beneficial effects of the utility model are: go control Driver Circuit after adopting single-chip microcomputer to motor position decoding, the running of drive motors has then realized the dynamic real-time monitor of motor and has improved the accuracy and the reliability of drive motors; Simultaneously; carry coherent signal to give single-chip microcomputer by the current sample/testing circuit that links to each other with drive circuit, the overvoltage that links to each other with the DC power supply input interface/under-voltage protecting circuit; single-chip microcomputer handles back output control signal and cuts out or open drive circuit; make the motor stall or remain in operation; realize overcurrent, overvoltage, the under-voltage protection of motor; guarantee that motor works always under normal condition, thereby effectively protect motor, improve production security.
Description of drawings
Fig. 1 is a kind of circuit structure block diagram that the utility model links to each other with dc brushless motor.
Fig. 2 is a kind of circuit theory diagrams of the present utility model.
1. single-chip microcomputers among the figure, 2. drive circuit, 3. power converting circuit, 4. DC power supply input interface, 5. current sample/testing circuit, 6. overvoltage/under-voltage protecting circuit, 11. motors, three phase windings, 12. position transducers.
Embodiment
Below by embodiment, and in conjunction with the accompanying drawings, the technical solution of the utility model is described in further detail.
Embodiment 1: the high accuracy DC brushless motor controller of present embodiment; as depicted in figs. 1 and 2; comprise single-chip microcomputer 1; the drive circuit 2 that links to each other with single-chip microcomputer 1; current sample/testing circuit 5; overvoltage/under-voltage protecting circuit 6 and the power converting circuit 3 that working power is provided for entire controller; single-chip microcomputer 1 links to each other with the position transducer 12 of direct current machine again; drive circuit 2 links to each other with motor three phase windings 11 again; power converting circuit 3; overvoltage/under-voltage protecting circuit links to each other with DC power supply input interface 4; current sample/testing circuit 5 also links to each other with drive circuit 2; two of single-chip microcomputer 1 internal memory contain controller is made program, and the DC power supply input interface links to each other with external dc power during work.As shown in Figure 2, the single-chip microcomputer 1 in the present embodiment adopts the PIC18F2331 single-chip microcomputer, and 4,5,6 pin link to each other with the position transducer 12 of motor, and its 13～17 pin connects motor control signal, and its 21～26 pin connects drive circuit 2; Three groups of drive circuit 2 minutes A, B, C, form by a chip I R2101 and two field effect transistor for every group, 21,22 pin of PIC18F2331 single-chip microcomputer connect 2,3 pin of chip UA1,5 pin of UA1 connect the grid of field effect transistor QAL1 through resistance R 24,7 pin of UA1 connect the grid of field effect transistor QAH1 through resistance R 23, the source electrode of two field effect transistor connects together with 6 pin of UA1 and links to each other to winding with the A of motor, and much more no longer connection that B, C are two groups and A category are seemingly stated at this.Current sample/testing circuit 5 in the present embodiment is made up of sampling resistor RF1 and amplifier U3A, ground connection of resistance R F1, the other end links to each other with the drain electrode of field effect transistor QAL1, QBL1, QCL1, connects 3 pin of U3A then through resistance R 29, and 1 pin of U3A links to each other with 2 pin of PIC18F2331 single-chip microcomputer.Overvoltage/under-voltage protecting circuit 6 is made up of two amplifier U2A, U2B, and the output pin of U2A, U2B connects together and links to each other with 11 pin of above-mentioned single-chip microcomputer, and the forward input pin of U2A links to each other with DC power supply input interface 4 through resistance R 14, forms under-voltage protecting circuit; The negative sense input pin of U2B links to each other with DC power supply input interface 4 through resistance R 15, forms under-voltage protecting circuit.
The utility model is realized the dynamic real-time monitor to motor; according to the driving of the working condition control that monitors to motor; have simultaneously overcurrent, overvoltage, under-voltage protection function again; accuracy, reliability, the fail safe of machine operation are improved greatly; guarantee that motor works always under normal condition; thereby effectively protect motor, improve production security.
Claims (6)
1. high accuracy DC brushless motor controller, comprise the drive circuit (2) that links to each other with motor three phase windings (11), it is characterized in that also comprising single-chip microcomputer (1) that links to each other with the position transducer (12) of direct current machine and the power converting circuit (3) that working power is provided for entire controller, described single-chip microcomputer (1) links to each other with described drive circuit (2), described power converting circuit (3) links to each other with DC power supply input interface (4), the working procedure of described single-chip microcomputer (1) internal memory contain controller.
2. high accuracy DC brushless motor controller according to claim 1 is characterized in that also being connected with on the described drive circuit (2) current sample/testing circuit (5), and described current sample/testing circuit (5) links to each other with described single-chip microcomputer (1) again.
3. high accuracy DC brushless motor controller according to claim 1 and 2; it is characterized in that also being connected with on the described single-chip microcomputer (1) overvoltage/under-voltage protecting circuit (6), described overvoltage/under-voltage protecting circuit (6) links to each other with described DC power supply input interface (4) again.
4. high accuracy DC brushless motor controller according to claim 1 and 2, it is characterized in that described single-chip microcomputer (1) adopts the PIC18F2331 single-chip microcomputer, 4,5,6 pin link to each other with the position transducer (12) of motor, its 13～17 pin connects motor control signal, and its 21～26 pin connects described drive circuit (2); Described drive circuit (2) divides three groups of A, B, C, form by a chip I R2101 and two field effect transistor for every group, 21,22 pin of PIC18F2331 single-chip microcomputer connect 2,3 pin of chip UA1,5 pin of UA1 connect the grid of field effect transistor QAL1 through resistance R 24,7 pin of UA1 connect the grid of field effect transistor QAH1 through resistance R 23, the source electrode of two field effect transistor connects together with 6 pin of UA1 and links to each other to winding with the A of motor, and connection that B, C are two groups and A category are seemingly.
5. high accuracy DC brushless motor controller according to claim 2, it is characterized in that described current sample/testing circuit (5) is made up of sampling resistor RF1 and amplifier U3A, ground connection of resistance R F1, the other end links to each other with the drain electrode of field effect transistor QAL1, QBL1, QCL1, connect 3 pin of U3A then through resistance R 29,1 pin of U3A links to each other with described single-chip microcomputer (1).
6. high accuracy DC brushless motor controller according to claim 3, it is characterized in that described overvoltage/under-voltage protecting circuit (6) is made up of two amplifier U2A, U2B, the output pin of U2A, U2B connects together and links to each other with described single-chip microcomputer (1), the forward input pin of U2A links to each other with DC power supply input interface (4) through resistance R 14, forms under-voltage protecting circuit; The negative sense input pin of U2B links to each other with DC power supply input interface (4) through resistance R 15, forms under-voltage protecting circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006201061361U CN2930090Y (en) | 2006-07-28 | 2006-07-28 | High precision Dc brushless motor controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006201061361U CN2930090Y (en) | 2006-07-28 | 2006-07-28 | High precision Dc brushless motor controller |
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| Publication Number | Publication Date |
|---|---|
| CN2930090Y true CN2930090Y (en) | 2007-08-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2006201061361U Expired - Fee Related CN2930090Y (en) | 2006-07-28 | 2006-07-28 | High precision Dc brushless motor controller |
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| CN (1) | CN2930090Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101373944B (en) * | 2008-06-25 | 2011-03-23 | 何伟斌 | Driver for brushless DC motor |
| CN104753032A (en) * | 2013-12-26 | 2015-07-01 | 北京谊安医疗系统股份有限公司 | Anesthesia machine and brushless direct current motor protective device applied thereto |
| CN106059441A (en) * | 2016-07-26 | 2016-10-26 | 佛山市顺德区海伦宝电器有限公司 | Stepless speed regulating AC control device for single phase AC motor of fan or cold fan |
| CN106856387A (en) * | 2015-12-08 | 2017-06-16 | 重庆森坦科技有限公司 | A kind of driver for brushless DC motor |
-
2006
- 2006-07-28 CN CNU2006201061361U patent/CN2930090Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101373944B (en) * | 2008-06-25 | 2011-03-23 | 何伟斌 | Driver for brushless DC motor |
| CN104753032A (en) * | 2013-12-26 | 2015-07-01 | 北京谊安医疗系统股份有限公司 | Anesthesia machine and brushless direct current motor protective device applied thereto |
| CN106856387A (en) * | 2015-12-08 | 2017-06-16 | 重庆森坦科技有限公司 | A kind of driver for brushless DC motor |
| CN106059441A (en) * | 2016-07-26 | 2016-10-26 | 佛山市顺德区海伦宝电器有限公司 | Stepless speed regulating AC control device for single phase AC motor of fan or cold fan |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070801 Termination date: 20100728 |