CN206302360U - Motor control circuit and the controller for motor with the motor control circuit - Google Patents
Motor control circuit and the controller for motor with the motor control circuit Download PDFInfo
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- CN206302360U CN206302360U CN201621415189.1U CN201621415189U CN206302360U CN 206302360 U CN206302360 U CN 206302360U CN 201621415189 U CN201621415189 U CN 201621415189U CN 206302360 U CN206302360 U CN 206302360U
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- control circuit
- motor
- motor control
- terminal
- power supply
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- 230000005611 electricity Effects 0.000 claims description 13
- 238000010586 diagram Methods 0.000 description 6
- 230000004048 modification Effects 0.000 description 5
- 238000012986 modification Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
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Abstract
The application provides a kind of motor control circuit and the controller for motor with the motor control circuit, the motor control circuit has to the motor-driven control chip provided of motor output control signal, described motor-driven control chip provided at least with the first power supply terminal, second source terminal, ground terminal and control signal output, the first supply voltage that first power supply terminal is accessed is higher than the second source voltage that the second source terminal is accessed；The motor control circuit also has：Electric capacity, it is electrically connected between first power supply terminal and the ground terminal；First resistor, it is electrically connected in parallel between first power supply terminal and the ground terminal with the electric capacity.According to the application, discharge path over the ground is formed by setting first resistor between the first power supply terminal and ground terminal, so as to avoid motor control circuit from burning out.
Description
Technical field
The present invention relates to technical field of electromechanical control, more particularly to a kind of motor control circuit and with the motor control
The controller for motor of circuit.
Background technology
Motor is a kind of electromechanical equipment that people commonly use in daily life and production, generally, by motor control circuit pair
The operation of motor is controlled.
Fig. 1 is a schematic diagram of motor control circuit in the prior art, as shown in figure 1, motor control circuit 100 has
Motor-driven control chip provided 101, this motor-driven control chip provided 101 can at least have the first power supply terminal 102, second source terminal 103,
Ground terminal 104 and control signal output 105, wherein, control signal output 105 can export and motor is controlled
The control signal of system, the first power supply terminal 102 can be accessed the first supply voltage, and second source terminal 103 can be accessed
Second source voltage, also, first supply voltage can be higher than the second source voltage, for example, the first supply voltage can be with
It is 24v, second source voltage can be 5v.Additionally, as shown in figure 1, motor control circuit 100 can also have electric capacity C, the electricity
Holding C can be connected electrically between the first power supply terminal 102 and ground terminal 104.
In the prior art, it is possible to use special driving power supply circuit provides driving electricity for the motor control circuit of Fig. 1
Source.Fig. 2 is a schematic diagram of each terminal with the annexation of each terminal of motor control circuit 100 of driving power supply circuit, such as
Shown in Fig. 2, the first drive terminal 202 of driving power supply circuit 200 can electrically connect to provide first with the first power supply terminal 102
Supply voltage, the second drive terminal 203 of driving power supply circuit 200 can electrically connect to provide with second source terminal 103
Two supply voltages, ground terminal 204 can be electrically connected with ground terminal 104.Additionally, also being set inside driving power supply circuit 200
It is equipped with electric capacity C1, C2 and C3 etc..
It should be noted that the introduction of technical background is intended merely to above the convenient technical scheme to the application carry out it is clear,
Complete explanation, and facilitate the understanding of those skilled in the art and illustrate.Can not be merely because these schemes be the application's
Background section is set forth and thinks that above-mentioned technical proposal is known to those skilled in the art.
Utility model content
During the use of motor control circuit, it is susceptible to the motor control circuit caused by warm swap and burns
The bad phenomenon that even motor is burned.
Inventors herein have recognized that, the pattern point the following two kinds that the motor control circuit caused by warm swap burns out：
The first pattern：Driving power supply circuit 200 is without stopping providing the first supply voltage and second source voltage
In the case of, the plug of each terminal of motor control circuit 100 is just carried out, thus, cause motor control circuit to burn out；
Second pattern：Driving power supply circuit 200 is stopping providing the situation of the first supply voltage and second source voltage
Under, the plug of each terminal of motor control circuit 100 is carried out, motor control circuit is also resulted in sometimes to be burnt out.
For second pattern, inventors herein have recognized that, due to the first drive terminal 202 and the first power supply terminal
Plug existence time between plug between 102, with ground terminal 204 and ground terminal 104 is poor so that there is the following two kinds
Mechanism causes motor control circuit to burn out：
The first mechanism：Because electricity remaining on the electric capacity C of motor control circuit 100 makes motor control electricity in electric discharge
Road burns out, the discharge current caused by the electric discharge as Fig. 2 ib 1. shown in；
Second mechanism：Because electricity remaining on electric capacity C1, C2 and C3 in driving power supply circuit 200 makes horse in electric discharge
Up to control circuit burn out, the discharge current caused by the electric discharge as Fig. 2 iA 2. shown in.
The embodiment of the present application provides a kind of motor control circuit and controller for motor, by the first power supply terminal with connect
First resistor is set between ground terminal to form discharge path over the ground, so as to avoid motor control circuit from burning out.
According to the one side of the embodiment of the present application, there is provided a kind of motor control circuit, it has to motor output control
Signal it is motor-driven control chip provided, it is described it is motor-driven control chip provided at least have the first power supply terminal, second source terminal, ground terminal
With control signal output, the first supply voltage that first power supply terminal is accessed is higher than the second source terminal quilt
The second source voltage of access；
The motor control circuit also has：
Electric capacity, it is electrically connected between first power supply terminal and the ground terminal；And
First resistor, its be electrically connected in parallel to the electric capacity first power supply terminal and the ground terminal it
Between.
According to the other side of the embodiment of the present application, wherein, the resistance value of the first resistor is 47 kilohms.
According to the other side of the embodiment of the present application, wherein, the motor control circuit also has diode, described two
Pole pipe is electrically connected to the second source terminal, it is allowed to which electric current flows into the motor control from the outside through by the second source terminal
Coremaking piece.
According to the other side of the embodiment of the present application, wherein, the motor control circuit also has second resistance, described
Second resistance is connected with the Diode series.
According to the other side of the embodiment of the present application, there is provided a kind of controller for motor, the controller for motor tool
Just like above-described embodiment either side described in motor control circuit and printed circuit board (PCB), wherein, motor control electricity
Road is arranged at the printed circuit board (PCB).
The beneficial effect of the embodiment of the present application is：Motor control circuit can be avoided to burn out.
With reference to explanation hereinafter and accompanying drawing, only certain exemplary embodiments of this invention is disclose in detail, specify original of the invention
Reason can be in adopted mode.It should be understood that embodiments of the present invention are not so limited in scope.In appended power
In the range of the spirit and terms that profit is required, embodiments of the present invention include many changes, modifications and are equal to.
The feature for describing and/or showing for a kind of implementation method can be in same or similar mode one or more
Used in individual other embodiment, it is combined with feature in other embodiment, or substitute the feature in other embodiment.
It should be emphasized that term "comprises/comprising" refers to the presence of feature, one integral piece, step or component when being used herein, but simultaneously
It is not excluded for the presence of one or more further features, one integral piece, step or component or additional.
Brief description of the drawings
Included accompanying drawing is used for providing being further understood from the embodiment of the present invention, which constitutes of specification
Point, for illustrating embodiments of the present invention, and come together to explain principle of the invention with word description.It should be evident that under
Accompanying drawing in the description of face is only some embodiments of the present invention, for those of ordinary skill in the art, is not paying wound
On the premise of the property made is laborious, other accompanying drawings can also be obtained according to these accompanying drawings.In the accompanying drawings：
Fig. 1 is a schematic diagram of motor control circuit in the prior art；
Fig. 2 is a schematic diagram of each terminal with the annexation of each terminal of motor control circuit of driving power supply circuit；
Fig. 3 is a schematic diagram of the motor control circuit of the embodiment of the present application 1.
Specific embodiment
Referring to the drawings, by following specification, of the invention foregoing and further feature will be apparent.In specification
In accompanying drawing, only certain exemplary embodiments of this invention is specifically disclosed, which show the portion that can wherein use principle of the invention
Divide implementation method, it will thus be appreciated that the invention is not restricted to described implementation method, conversely, the present invention includes falling into appended power
Whole modifications, modification and equivalent in the range of profit requirement.
Embodiment 1
The embodiment of the present application 1 provides a kind of motor control circuit, and Fig. 3 is a schematic diagram of the motor control circuit.
As shown in figure 3, motor control circuit 300 has motor-driven control chip provided 301, this motor-driven control chip provided 301 can be down to
There is the first power supply terminal 302, second source terminal 303, ground terminal 304 and control signal output 305 less, wherein,
Control signal output 305 can export the control signal being controlled to motor, and the first power supply terminal 302 can be accessed
First supply voltage, second source terminal 303 can be by access second source voltage, also, first supply voltage can be with height
In the second source voltage, for example, the first supply voltage can be 24v, second source voltage can be 5v.
In the present embodiment, as shown in figure 3, motor control circuit 300 can also can be electrically connected with electric capacity C, electric capacity C
It is connected between the first power supply terminal 302 and ground terminal 304.
In the present embodiment, as shown in figure 3, motor control circuit 300 can also have first resistor R1, the first resistor
R1 can be electrically connected in parallel between the first power supply terminal 302 and ground terminal 304 with electric capacity C.
As shown in figure 3, in the present embodiment, it is residual on the electric capacity C of motor control circuit 300 due to first resistor R1
Remaining electricity can be by first resistor R1 to earth terminal electron discharge, i.e. produce as ib 1. ' shown in discharge current over the ground,
Thus, in the case of hot plug, it is to avoid discharge current via the first power supply terminal 302 flow into this motor-driven control chip provided 301, from
And prevent the motor control circuit 300 caused by above-mentioned the first mechanism to be burned.
In the present embodiment, the electricity that can be stored according to electric capacity C, discharge time, and it is motor-driven control chip provided most
Bear electric current to set the resistance of first resistor R1 greatly, thus, control the current value of discharge current.For example, electric capacity C is 47 μ
F, the first supply voltage is 24v, and the maximum electricity that electric capacity C is stored is (V)=0.0011 coulomb of Q=C*V=47 (μ F) * 24,
Assuming that discharge time is 200 μ S, the maximum current that motor-driven control chip provided 301 the first power supply terminal 302 can bear is 5A, that
, the resistance that can set first resistor R1 is 47 kilohms.
In the present embodiment, as shown in figure 3, first resistor R1 can also be to remnants on the electric capacity of driving power supply circuit
2. discharge current iA caused by electricity is shunted, so as to reduce discharge current iA influences 2., is prevented due to above-mentioned second
Motor control circuit 300 caused by the mechanism of kind is burned.
In the present embodiment, as shown in figure 3, the motor control circuit 300 can also have diode D, diode D can
To be electrically connected to second source terminal 303, also, diode D can allow electric current from the outside through by second source terminal 303
Flow into motor-driven control chip provided 301.Thus, diode D can block electricity remaining on the electric capacity due to driving power supply circuit
In electric discharge caused discharge current iA 2., so as to further prevent the motor control caused by above-mentioned second mechanism
Circuit 300 is burned.
Further, since diode D can allow electric current to flow into motor control core from the outside through by second source terminal 303
Piece 301, so, do not influence from second source terminal normally feed-in second source voltage.
In the present embodiment, as shown in figure 3, motor control circuit 300 can also have second resistance R2, the second resistance
R2 can be connected in series with diode D, so as to further avoid second source terminal 303 from being impacted by residual discharge electric current.
In the present embodiment, by setting the first resistor being electrically connected between the first power supply terminal and ground terminal, shape
Discharge path in couples such that it is able to avoid the motor control circuit caused by hot plug from burning out；Additionally, by the second electricity
Source terminal sets diode, can further prevent motor control circuit to be burned.
Embodiment 2
The embodiment of the present application 2 provides a kind of controller for motor, and the controller for motor has the horse described in embodiment 1
Up to control circuit 300 and printed circuit board (PCB), wherein, the motor control circuit 300 can be arranged at the printed circuit board (PCB).
In the present embodiment, the first resistor R1 of the motor control circuit 300 can be Chip-R, and the Chip-R can
It is formed on the printed circuit board (PCB) with the domain (layout) based on the printed circuit board (PCB).
In the controller for motor of the present embodiment, it is electrically connected between the first power supply terminal and ground terminal by setting
First resistor R1, form discharge path over the ground such that it is able to avoid the motor control circuit caused by hot plug from burning out；This
Outward, diode is set by second source terminal, can further prevents motor control circuit to be burned.
The application is described above in association with specific embodiment, it will be appreciated by those skilled in the art that this
A little descriptions are all exemplary, are not the limitation to the application protection domain.Those skilled in the art can be according to the application
Spirit and principle various variants and modifications are made to the application, these variants and modifications are also within the scope of application.
Claims (5)
1. a kind of motor control circuit, described motor-driven control chip provided with to the motor-driven control chip provided of motor output control signal
At least there is the first power supply terminal, second source terminal, ground terminal and control signal output, first power supply terminal
The first supply voltage for being accessed is higher than the second source voltage that the second source terminal is accessed；
Characterized in that, the motor control circuit also has：
Electric capacity, it is electrically connected between first power supply terminal and the ground terminal；And
First resistor, it is electrically connected in parallel between first power supply terminal and the ground terminal with the electric capacity.
2. motor control circuit as claimed in claim 1, it is characterised in that
The resistance value of the first resistor is 47 kilohms.
3. motor control circuit as claimed in claim 1, it is characterised in that
The motor control circuit also has diode,
The diode is electrically connected to the second source terminal, it is allowed to which electric current is flowed into from the outside through by the second source terminal
It is described motor-driven control chip provided.
4. motor control circuit as claimed in claim 3, it is characterised in that
The motor control circuit also has second resistance, and the second resistance is connected with the Diode series.
5. a kind of controller for motor, it is characterised in that the controller for motor has as in claim 1- claims 4
Motor control circuit and printed circuit board (PCB) described in any one, wherein, the motor control circuit is arranged at the printing electricity
Road plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621415189.1U CN206302360U (en) | 2016-12-22 | 2016-12-22 | Motor control circuit and the controller for motor with the motor control circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621415189.1U CN206302360U (en) | 2016-12-22 | 2016-12-22 | Motor control circuit and the controller for motor with the motor control circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206302360U true CN206302360U (en) | 2017-07-04 |
Family
ID=59214097
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621415189.1U Expired - Fee Related CN206302360U (en) | 2016-12-22 | 2016-12-22 | Motor control circuit and the controller for motor with the motor control circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206302360U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113165687A (en) * | 2018-11-27 | 2021-07-23 | 日本电产株式会社 | Motor control device |
-
2016
- 2016-12-22 CN CN201621415189.1U patent/CN206302360U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113165687A (en) * | 2018-11-27 | 2021-07-23 | 日本电产株式会社 | Motor control device |
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| GR01 | Patent grant | ||
| 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: 20170704 |