CN207720054U - A kind of servo-driver list resistance sampling detecting system - Google Patents
A kind of servo-driver list resistance sampling detecting system Download PDFInfo
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- CN207720054U CN207720054U CN201820032656.5U CN201820032656U CN207720054U CN 207720054 U CN207720054 U CN 207720054U CN 201820032656 U CN201820032656 U CN 201820032656U CN 207720054 U CN207720054 U CN 207720054U
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Abstract
The utility model belongs to resistance sampling detection technique field and discloses a kind of servo-driver list resistance sampling detecting system, including first electrode pipe, second electrode pipe, third electrode tube, 4th electrode tube, 5th electrode tube, 6th electrode tube, circuit board connection terminals and third sampling resistor, busbar and the first electrode pipe, second electrode pipe, third electrode tube, 4th electrode tube, 5th electrode tube and the connection of the 6th electrode tube, constitute the circuit of a closure, an and third sampling resistor of connecting on the circuit of closure, voltage signal on the third sampling resistor is sent to ADC using amplifier, microcontroller samples double sampling in a PWM cycle by ADC and goes out biphase current, and it forms third phase current and is connect with circuit board connection terminals.The mode that the utility model uses single resistance carries out bus current sampling, greatly reduces the cost of servo-driver.
Description
Technical field
The utility model is specifically related to a kind of servo-driver list resistance sampling detecting system, belongs to resistance sampling detection skill
Art field.
Background technology
AC servo driver, controll plant are permanent magnet synchronous motors, and the control algolithm of mainstream is Field orientable control
(FOC) it is also known as vector controlled.Realize FOC algorithms, the acquisition of some physical quantitys is necessary, and FOC controls are motors
Electric current, therefore, the acquisition of current of electric are necessary and are most important and a module that cost is relatively high.Circuit
On must be precisely accurate.
FOC algorithms are completed, the electric current for using motor three-phase are needed, for doing vector calculus.Because defeated from the angle of motor
It is equal to enter electric current and output current, so only needing to acquire biphase current therein, i.e. Iu and Iw, in addition a phase is electric
Stream is calculated by software, i.e. Iv=- (Iu+Iw), thus in actual circuit, has also been made two sets of Acquisition Circuits, therefore at
This is higher.
Utility model content
The technical problems to be solved in the utility model overcomes existing defect, provides a kind of servo-driver list resistance sampling
Detecting system, the mode for using single resistance carry out bus current sampling, greatly reduce the cost of servo-driver,
The problems in background technology can effectively be solved.
In order to solve the above-mentioned technical problem, the utility model provides the following technical solution：
The utility model provides a kind of servo-driver list resistance sampling detecting system, including first electrode pipe, the second electricity
Pole pipe, third electrode tube, the 4th electrode tube, the 5th electrode tube, the 6th electrode tube, circuit board connection terminals and third sampling electricity
Resistance, busbar and the first electrode pipe, second electrode pipe, third electrode tube, the 4th electrode tube, the 5th electrode tube and the 6th electricity
Pole pipe connects, and constitutes the circuit of a closure, and a third sampling resistor of connecting on the circuit of closure, the third sampling
Ohmically voltage signal is sent to ADC using amplifier, and microcontroller samples double sampling in a PWM cycle by ADC and goes out
Biphase current, and form third phase current and connect with circuit board connection terminals.
As a kind of optimal technical scheme of the utility model, the third phase current is according to Iu+Iv+Iw=0 formula meters
It obtains.
As a kind of optimal technical scheme of the utility model, the third sampling resistor model OR22/1W/1%.
As a kind of optimal technical scheme of the utility model, the first electrode pipe, second electrode pipe, third electrode
The model of pipe, the 4th electrode tube, the 5th electrode tube and the 6th electrode tube is IKD04N60R.
As a kind of optimal technical scheme of the utility model, the model MSTB2.5-5 of circuit board connection terminals.
The advantageous effect that the utility model is reached is：A kind of servo-driver list resistance sampling detecting system, uses
The mode of single resistance carries out bus current sampling, greatly reduces the cost of servo-driver.
Description of the drawings
Attached drawing is used to provide a further understanding of the present invention, and a part for constitution instruction, with this practicality
Novel embodiment for explaining the utility model, does not constitute limitations of the present invention together.
In the accompanying drawings：
Fig. 1 is a kind of servo-driver list resistance sampling detecting system schematic diagram described in the utility model embodiment；
Fig. 2 is the current collection circuit schematic diagram used in current FOC algorithms；
Figure label：1, first electrode pipe；2, second electrode pipe；3, third electrode tube；4, the 4th electrode tube；5, the 5th electricity
Pole pipe；6, the 6th electrode tube；7, the first sampling resistor；8, the second sampling resistor；9, circuit board connection terminals；10, third samples
Resistance.
Specific implementation mode
The preferred embodiment of the utility model is illustrated below in conjunction with attached drawing, it should be understood that described herein excellent
It selects embodiment to be only used for describing and explaining the present invention, is not used to limit the utility model.
Embodiment 1：
Referring to Fig. 1, a kind of servo-driver list resistance sampling detecting system of the utility model, including first electrode pipe 1,
Second electrode pipe 2, third electrode tube 3, the 4th electrode tube 4, the 5th electrode tube 5, the 6th electrode tube 6,9 and of circuit board connection terminals
Third sampling resistor 10, which is characterized in that busbar and the first electrode pipe 1, second electrode pipe 2, third electrode tube the 3, the 4th
Electrode tube 4, the 5th electrode tube 5 and the connection of the 6th electrode tube 6, constitute the circuit of a closure, and gone here and there on the circuit of closure
Join a third sampling resistor 10, the voltage signal on the third sampling resistor 10 is sent to ADC using amplifier, and microcontroller is logical
It crosses ADC and samples double sampling in a PWM cycle and go out biphase current, and form third phase current and circuit board connection terminals 9
Connection, the third phase current are calculated according to Iu+Iv+Iw=0 formula, 10 model OR22/ of the third sampling resistor
1W/1%, the first electrode pipe 1, second electrode pipe 2, third electrode tube 3, the 4th electrode tube 4, the 5th electrode tube 5 and the 6th
The model of electrode tube 6 is IKD04N60R, the model MSTB2.5-5 of circuit board connection terminals 9.
Embodiment 2：
Referring to Fig. 2, the current collection circuit used in FOC algorithms at present, by first electrode pipe 1, second electrode pipe 2,
Third electrode tube 3, the 4th electrode tube 4, the 5th electrode tube 5, the 6th electrode tube 6 constitute the current sampling circuit of Iu, Iw, then again
Two the first sampling resistors in parallel；7 and second sampling resistor 8, thus acquire be U and W phases electric current, then according to formula Iv
=-(Iu+Iw), it by the way that Iv is calculated, and forms third phase current and is connect with circuit board connection terminals 9, therefore two-way is adopted
Collection, hardware cost cost are high.
Finally it should be noted that：The above descriptions are merely preferred embodiments of the present invention, is not limited to this
Utility model, although the utility model is described in detail with reference to the foregoing embodiments, for those skilled in the art
For, it still can be with technical scheme described in the above embodiments is modified, or to which part technical characteristic
Carry out equivalent replacement.Within the spirit and principle of the utility model, any modification, equivalent replacement, improvement and so on,
It should be included within the scope of protection of this utility model.
Claims (5)
1. a kind of servo-driver list resistance sampling detecting system, including first electrode pipe (1), second electrode pipe (2), third electricity
Pole pipe (3), the 4th electrode tube (4), the 5th electrode tube (5), the 6th electrode tube (6), circuit board connection terminals (9) and third sampling
Resistance (10), which is characterized in that busbar and the first electrode pipe (1), second electrode pipe (2), third electrode tube (3), the 4th
Electrode tube (4), the 5th electrode tube (5) and the connection of the 6th electrode tube (6) constitute the circuit of a closure, and returning in closure
Road is connected a third sampling resistor (10), and the voltage signal on the third sampling resistor (10) is sent to using amplifier
ADC, microcontroller samples double sampling in a PWM cycle by ADC and goes out biphase current, and forms third phase current and circuit
Plate connecting terminal (9) connects.
2. a kind of servo-driver list resistance sampling detecting system according to claim 1, which is characterized in that the third
Phase current is calculated according to Iu+Iv+Iw=0 formula.
3. a kind of servo-driver list resistance sampling detecting system according to claim 1, which is characterized in that the third
Sampling resistor (10) model OR22/1W/1%.
4. a kind of servo-driver list resistance sampling detecting system according to claim 1, which is characterized in that described first
Electrode tube (1), second electrode pipe (2), third electrode tube (3), the 4th electrode tube (4), the 5th electrode tube (5) and the 6th electrode tube
(6) model is IKD04N60R.
5. a kind of servo-driver list resistance sampling detecting system according to claim 1, which is characterized in that the circuit
The model MSTB2.5-5 of plate connecting terminal (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820032656.5U CN207720054U (en) | 2018-01-09 | 2018-01-09 | A kind of servo-driver list resistance sampling detecting system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820032656.5U CN207720054U (en) | 2018-01-09 | 2018-01-09 | A kind of servo-driver list resistance sampling detecting system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207720054U true CN207720054U (en) | 2018-08-10 |
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ID=63055182
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820032656.5U Active CN207720054U (en) | 2018-01-09 | 2018-01-09 | A kind of servo-driver list resistance sampling detecting system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110165963A (en) * | 2019-05-21 | 2019-08-23 | 四川虹美智能科技有限公司 | A kind of motor list resistance sampling control method and device |
| CN114034921A (en) * | 2021-11-22 | 2022-02-11 | 江苏科技大学 | Bus current sampling circuit and method based on single-resistor sampling |
-
2018
- 2018-01-09 CN CN201820032656.5U patent/CN207720054U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110165963A (en) * | 2019-05-21 | 2019-08-23 | 四川虹美智能科技有限公司 | A kind of motor list resistance sampling control method and device |
| CN114034921A (en) * | 2021-11-22 | 2022-02-11 | 江苏科技大学 | Bus current sampling circuit and method based on single-resistor sampling |
| CN114034921B (en) * | 2021-11-22 | 2023-11-21 | 江苏科技大学 | Bus current sampling circuit and method based on single-resistor sampling |
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