CN205092800U - Permanent magnet brushless DC motor driver device - Google Patents
Permanent magnet brushless DC motor driver device Download PDFInfo
- Publication number
- CN205092800U CN205092800U CN201520777194.6U CN201520777194U CN205092800U CN 205092800 U CN205092800 U CN 205092800U CN 201520777194 U CN201520777194 U CN 201520777194U CN 205092800 U CN205092800 U CN 205092800U
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- bridge
- drive circuit
- motor driver
- driver device
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Abstract
The utility model provides a permanent magnet brushless DC motor driver device. Permanent magnet brushless DC motor driver device includes power tube, drive circuit and interlock circuit, power tube quantity is six to divide equally for triphase half -bridge and the triphase half -bridge down gone up, drive circuit and interlock circuit intercommunication go up the half -bridge with lower half -bridge. The utility model provides a drive circuit and interlock circuit cooperation work that permanent magnet brushless DC motor driver circuit provided when brushless DC motor drives, through the method of six power tube interlockings of three -phase bridge arm, have realized the reliable turn -off that non -conducting managed when brushless DC motor drove, have improved the reliability of driver.
Description
Technical field
The utility model relates to motor-drive technique field, especially, relates to a kind of permanent magnetic brushless direct-current motor driver device.
Background technology
The driving of prior art brshless DC motor is energized between two, namely only has two-phase to be energized simultaneously, only has two conductings in six driving tubes simultaneously, other four not conductings.Though although other four power tube not conductings, because of a variety of causes such as interference, Muller effects, in use easily cause misleading of non-conduction pipe, cause drive corruption.
Utility model content
For above-mentioned technical problem, the utility model provides a kind of permanent magnetic brushless direct-current motor driver device.
A kind of permanent magnetic brushless direct-current motor driver device, comprise power tube, drive circuit and interlock circuit, described power tube quantity is six, and is divided into the upper half-bridge of three-phase and the lower half-bridge of three-phase, and described drive circuit and interlock circuit are communicated with described upper half-bridge and described lower half-bridge.
In a preferred embodiment of the present utility model, described drive circuit comprises the upper half-bridge drive circuit being communicated with upper slab bridge and the lower half-bridge drive circuit being communicated with lower slab bridge.
In a preferred embodiment of the present utility model, described interlock circuit comprises the upper half-bridge interlock circuit being communicated with upper slab bridge and the lower half-bridge interlock circuit being communicated with lower slab bridge.
In a preferred embodiment of the present utility model, described drive circuit comprises optocoupler and the triode of electric connection.
In a preferred embodiment of the present utility model, also comprise motor rotor position sensor, described motor rotor position sensor comprises the position signalling sensing points being located at described upper half-bridge and lower half-bridge respectively.
Compared to prior art, the drive circuit that the permanent magnetic brushless direct-current motor driver circuit that this utility model provides provides and interlock circuit cooperating, when brshless DC motor drives, by the method for three-phase brachium pontis six power tube interlockings, achieve the reliable turn-off of non-conduction pipe when brshless DC motor drives, improve the reliability of driver.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the utility model embodiment, below the accompanying drawing used required in describing embodiment is briefly described, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings, wherein:
Fig. 1 is the structural framing figure of the utility model permanent magnetic brushless direct-current motor driver device.
Embodiment
Be clearly and completely described to the technical scheme in the utility model embodiment below, obviously, described embodiment is only a part of embodiment of the present utility model, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making other embodiments all obtained under creative work prerequisite, all belong to the scope of the utility model protection.
The utility model discloses a kind of permanent magnetic brushless direct-current motor driver device, refer to Fig. 1, described permanent magnetic brushless direct-current motor driver device 1 comprises power tube, drive circuit 12, interlock circuit 13, motor rotor position sensor 14, described power tube quantity is six, and be divided into the upper half-bridge 11 of three-phase and the lower half-bridge 15 of three-phase, described drive circuit 12 and interlock circuit 13 are communicated with described upper half-bridge 11 and described lower half-bridge 15, and described motor rotor position sensor 14 comprises the position signalling sensing points being located at described upper half-bridge 11 and lower half-bridge 15 respectively.
Described drive circuit 12 comprises the upper half-bridge drive circuit 121 being communicated with upper slab bridge 11 and the lower half-bridge drive circuit 122 being communicated with lower slab bridge 15,
Described interlock circuit 13 comprises the upper half-bridge interlock circuit 131 being communicated with upper slab bridge 11 and the lower half-bridge interlock circuit 132 being communicated with lower slab bridge 15.
Further, described drive circuit 12 is provided with optocoupler 123 and the triode 124 of electric connection.
During work, driver for brushless DC motor is according to six of motor rotor position sensor position signallings, make a upper power tube and a lower power tube conducting of half-bridge and lower half-bridge, motor is rotated, six power tubes are represented with A, B, C, the turn-on sequence of half-bridge up and down that its six Rotor Position Sensor Signal are corresponding is: under the upper B of A, under the upper C of A, under the upper C of B, under the upper A of B, under the upper A of C, under the upper B of C, circulate successively, make motor continuous rotation.Know, in operation, have a non-conduction of the bridge arm from the turn-on sequence of upper and lower half-bridge, meanwhile, two power tubes up and down of same half-bridge can not conducting simultaneously, under the effect of interlock circuit, realizes above-mentioned workflow.
In sum, the drive circuit that the permanent magnetic brushless direct-current motor driver circuit that the utility model provides provides and interlock circuit cooperating, when brshless DC motor drives, by the method for three-phase brachium pontis six power tube interlockings, achieve the reliable turn-off of non-conduction pipe when brshless DC motor drives, improve the reliability of driver.
The foregoing is only embodiment of the present utility model; not thereby the scope of the claims of the present utility model is limited; every utilize the utility model description to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical field, be all in like manner included in scope of patent protection of the present utility model.
Claims (5)
1. a permanent magnetic brushless direct-current motor driver device, it is characterized in that, comprise power tube, drive circuit and interlock circuit, described power tube quantity is six, and be divided into the upper half-bridge of three-phase and the lower half-bridge of three-phase, described drive circuit and interlock circuit are communicated with described upper half-bridge and described lower half-bridge.
2. permanent magnetic brushless direct-current motor driver device according to claim 1, is characterized in that, described drive circuit comprises the upper half-bridge drive circuit being communicated with upper slab bridge and the lower half-bridge drive circuit being communicated with lower slab bridge.
3. permanent magnetic brushless direct-current motor driver device according to claim 1, is characterized in that, described interlock circuit comprises the upper half-bridge interlock circuit being communicated with upper slab bridge and the lower half-bridge interlock circuit being communicated with lower slab bridge.
4. permanent magnetic brushless direct-current motor driver device according to claim 1, is characterized in that, described drive circuit comprises optocoupler and the triode of electric connection.
5. permanent magnetic brushless direct-current motor driver device according to claim 1, is characterized in that, also comprise motor rotor position sensor, and described motor rotor position sensor comprises the position signalling sensing points being located at described upper half-bridge and lower half-bridge respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520777194.6U CN205092800U (en) | 2015-10-09 | 2015-10-09 | Permanent magnet brushless DC motor driver device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520777194.6U CN205092800U (en) | 2015-10-09 | 2015-10-09 | Permanent magnet brushless DC motor driver device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205092800U true CN205092800U (en) | 2016-03-16 |
Family
ID=55483450
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520777194.6U Expired - Fee Related CN205092800U (en) | 2015-10-09 | 2015-10-09 | Permanent magnet brushless DC motor driver device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205092800U (en) |
-
2015
- 2015-10-09 CN CN201520777194.6U patent/CN205092800U/en not_active Expired - Fee Related
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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 |
Granted publication date: 20160316 Termination date: 20161009 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |