CN203011420U - Brushless DC motor Hall sensor mounting position correcting mechanism - Google Patents
Brushless DC motor Hall sensor mounting position correcting mechanism Download PDFInfo
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- CN203011420U CN203011420U CN 201220544577 CN201220544577U CN203011420U CN 203011420 U CN203011420 U CN 203011420U CN 201220544577 CN201220544577 CN 201220544577 CN 201220544577 U CN201220544577 U CN 201220544577U CN 203011420 U CN203011420 U CN 203011420U
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- microcontroller
- motor
- hall element
- signal
- brushless
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- 238000009434 installation Methods 0.000 claims abstract description 15
- 238000001514 detection method Methods 0.000 claims abstract description 8
- 238000010586 diagram Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000004069 differentiation Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
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Abstract
A brushless DC motor Hall sensor mounting position correcting mechanism comprises a microcontroller, an operation control circuit, a Hall sensor signal detection circuit and a non-sensing drive circuit. The microcontroller is used for performing various operation controls including phase correction and providing an optimal commutation point signal. The operation control circuit is respectively connected with the microcontroller and the motor input end. The Hall sensor signal detection circuit is respectively connected with the Hall sensor and the microcontroller. The non-sensing driving circuit is respectively connected with the input end of the motor and the microcontroller. Therefore, the detector can obtain the commutation signal of the Hall sensor in actual operation and the optimal commutation point signal for the motor, and then the difference between the two signals is compared to correct the installation position of the Hall sensor.
Description
Technical field
The utility model is that to reach the Brushless DC motor that Hall element drives relevant with utilization, particularly about a kind of aligning gear of Brushless DC motor Hall element installation position.
Background technology
As everyone knows, whether the installation site of Brushless DC motor Hall element correctly can affect the output characteristics of this motor, so how motor detects Hall element and whether just seemed extremely important by correct location during fabrication or in running.Known to prior art, present detection mode, at first be with an outside tractor, for example manpower or motor, drive motor to be detected and do the constant speed rotation, and then sequentially implement various trace routines, this kind mode does not have correct reference value for corrector's judgement, in other words, not only process is coarse but also precision is inadequate.
The utility model content
Fundamental purpose of the present utility model is to provide a kind of aligning gear of Brushless DC motor Hall element installation position, and it can proofread and correct the installation position of Brushless DC motor Hall element easy and accurately.
Take off purpose for before reaching, a kind of Brushless DC motor Hall element installation position aligning gear provided by the utility model is characterized in that, includes:
One microcontroller is used for doing various s operation control, comprises phase correction and best commutation point signal is provided;
One running control circuit is connected with this microcontroller and motor input end respectively, in order to the running according to the signal controlling motor of this microcontroller;
One Hall element signal detection circuit is in order to detect the signal that Hall element spreads out of and to input to this microcontroller; And
One sensing driving circuit is connected with this microcontroller with the motor input end respectively, on the one hand in order to drive this motor, provides to this microcontroller and does phase correction for phase correction system wherein in order to sensing is driven commutation signal on the other hand.
Wherein also include a monitor, be connected with this microcontroller, in order to show best commutation point signal and Hall element commutation signal.
Wherein also include a current sensor, its input end is connected to the motor input end, and output terminal is connected to microcontroller.
Wherein this running control circuit includes a gate drivers and a frequency converter, and this gate drivers is this microcontroller and the connection of this frequency converter respectively, and this frequency converter is connected with this gate drivers and motor input end respectively.
The beneficial effects of the utility model are: the tester can utilize this sensing driving circuit starter motor, then the commutation signal of obtaining respectively Hall element real-world operation from this microcontroller with and for the best commutation point signal of this motor, last difference after is relatively again proofreaied and correct the installation position of Hall element as foundation.
Description of drawings
Below enumerate a preferred embodiment and coordinate accompanying drawing that the utility model is described in further detail, wherein:
Fig. 1 is the circuit arrangement schematic diagram of implementing a preferred embodiment of the present utility model;
Fig. 2 embodiment illustrated in fig. 1ly drives by sensing obtain correct in commutation signal and Hall element signal timing diagram;
Fig. 3 is that the oscillograph record drives commutation signal by the Hall element commutation signal that obtains embodiment illustrated in fig. 1 and sensing when middling speed (2678RPM); And
Fig. 4 is that the oscillograph record drives commutation signal by the Hall element commutation signal that obtains embodiment illustrated in fig. 1 and sensing when high speed (4255RPM).
Embodiment
At first, see also Fig. 1, for a preferred embodiment of the utility model Brushless DC motor Hall element installation position aligning gear as shown in figure number 10, it has a microcontroller 20, one running control circuit 30, one Hall elements (Hall Sensor) signal detection circuit 40 and a sensing driving circuit 50.
The aligning gear 10 of the present embodiment is for a three-phase brushless d.c. motor 90, and wherein Hall element group 92 is to be arranged on motor 90 stators, and the technology of its layout and mode all can check in from the document of various related prior art.Microcontroller 20 is to do various s operation control, comprises a phase correction and best commutation point signal is provided.
Because the present embodiment is for the three-phase brushless d.c. motor, therefore, running control circuit 30 has a gate drivers 32 and a frequency converter 34.Gate drivers 32 is to be connected with microcontroller 20 and frequency converter 34 respectively.34, frequency converter is connected with gate drivers 32 and motor 90 respectively.
Hall element (Hall Sensor) signal detection circuit 40 1 ends are connected with Hall element group 92, and the other end is connected to microcontroller 20.Sensing driving circuit 50 is to be connected with motor 90 and microcontroller 20 respectively.
In the present embodiment, aligning gear 10 also has a current sensor 60, and its input end is connected to the input end of motor 90, and output terminal is connected to microcontroller 20.Current sensor 60 is to coordinate sensing driving circuit 50 to use to read needed current value, certainly also can do other purposes, such as overcurrent protection, rotation-clogging protection, differentiation phase place etc.The measured current value of current sensor 60 can be inputted microcontroller 20, for the phase correction system in it.
In addition, microcontroller 20 more is connected with external power source supply 70 and monitor 80.
Will with aforementioned manner obtain correct in commutation point signal RA, RB, RC, and the Hall commutation signal HAS, HSB, the HSC that obtain from Hall element (Hall Sensor) signal detection circuit 40, as shown in Figure 2, all input to monitor 80, the user can therefrom obtain the situation of phase deviation, θ A as shown in Figure 2, θ B, θ C at this moment, can proofread and correct the installation position of Hall element accordingly.
The position of the utility model correction Hall element no matter the speed speed can be real-time, Fig. 3, Fig. 4 use oscillograph to measure the motor angle that Hall element is offset when 2678RPM and 4255RPM rotating speed respectively.Passage 1 in figure (the first curve) is phase voltage; Passage 4 (the second curve) is phase current waveform; Passage 2 (the 3rd curve) is the Hall element signal; Passage 3 (the 4th curve) is correct reference commutation signal, and upright oval frame 5 records the result of best commutation point for the utility model.The time point of commutation only need record, or is triggered by the output pin of microcontroller, facilitates we and the installation position of present Hall element to compare.It is that Hall element signal and passage 3 (the 4th curve) are correct reference commutation signal that final of the utility model needs to compare passage 2 (the 3rd curve), just can obtain the position that Hall element is offset.
Claims (4)
1. a Brushless DC motor Hall element installation position aligning gear, is characterized in that, includes:
One microcontroller is used for doing various s operation control, comprises phase correction and best commutation point signal is provided;
One running control circuit is connected with this microcontroller and motor input end respectively, in order to the running according to the signal controlling motor of this microcontroller;
One Hall element signal detection circuit is in order to detect the signal that Hall element spreads out of and to input to this microcontroller; And
One sensing driving circuit is connected with this microcontroller with the motor input end respectively, on the one hand in order to drive this motor, provides to this microcontroller and does phase correction for phase correction system wherein in order to sensing is driven commutation signal on the other hand.
2. Brushless DC motor Hall element installation position aligning gear as claimed in claim 1, wherein also include a monitor, is connected with this microcontroller, in order to show best commutation point signal and Hall element commutation signal.
3. Brushless DC motor Hall element installation position aligning gear as claimed in claim 1, wherein also include a current sensor, and its input end is connected to the motor input end, and output terminal is connected to microcontroller.
4. Brushless DC motor Hall element installation position aligning gear as claimed in claim 1, wherein this running control circuit includes a gate drivers and a frequency converter, this gate drivers is connected with this microcontroller and this frequency converter respectively, and this frequency converter is connected with this gate drivers and motor input end respectively.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW101210393 | 2012-05-30 | ||
| TW101210393U TWM440600U (en) | 2012-05-30 | 2012-05-30 | Brushless direct current motors Hall sensor mounting position correction mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203011420U true CN203011420U (en) | 2013-06-19 |
Family
ID=47716981
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220544577 Expired - Lifetime CN203011420U (en) | 2012-05-30 | 2012-10-23 | Brushless DC motor Hall sensor mounting position correcting mechanism |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN203011420U (en) |
| TW (1) | TWM440600U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110199467A (en) * | 2016-12-21 | 2019-09-03 | 德纳汽车系统集团有限责任公司 | Hall effect sensor signal offset correction in phase commutation |
| WO2022206088A1 (en) * | 2021-03-29 | 2022-10-06 | 华润微集成电路(无锡)有限公司 | Circuit structure for compensating for hall deviation of brushless direct current motor, and angle controller operation method |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114553097A (en) | 2020-11-25 | 2022-05-27 | 台达电子工业股份有限公司 | Current sensing correction method and driving system |
| TWI768559B (en) * | 2020-11-25 | 2022-06-21 | 台達電子工業股份有限公司 | Current sensing correction method and driving system |
-
2012
- 2012-05-30 TW TW101210393U patent/TWM440600U/en not_active IP Right Cessation
- 2012-10-23 CN CN 201220544577 patent/CN203011420U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110199467A (en) * | 2016-12-21 | 2019-09-03 | 德纳汽车系统集团有限责任公司 | Hall effect sensor signal offset correction in phase commutation |
| CN110199467B (en) * | 2016-12-21 | 2022-12-06 | 德纳汽车系统集团有限责任公司 | Method for operating main reducer unit clutch |
| WO2022206088A1 (en) * | 2021-03-29 | 2022-10-06 | 华润微集成电路(无锡)有限公司 | Circuit structure for compensating for hall deviation of brushless direct current motor, and angle controller operation method |
Also Published As
| Publication number | Publication date |
|---|---|
| TWM440600U (en) | 2012-11-01 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130619 |
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| CX01 | Expiry of patent term |