CN209435056U - A kind of brushless electric machine control panel - Google Patents
A kind of brushless electric machine control panel Download PDFInfo
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- CN209435056U CN209435056U CN201920444258.9U CN201920444258U CN209435056U CN 209435056 U CN209435056 U CN 209435056U CN 201920444258 U CN201920444258 U CN 201920444258U CN 209435056 U CN209435056 U CN 209435056U
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Abstract
The utility model discloses a kind of brushless electric machine control panels, including network communication control module, main control chip U6, the peripheral circuit being connected on main control chip U6, switching circuit is connected to the input terminal of driving circuit of brushless electric machine, manually controls for switching and remotely controls both of which；Driving circuit of brushless electric machine is connect with the output end of switching circuit and main control chip U6, according to the stopping or unlatching of control signal control brushless motor；Counter electromotive force Acquisition Circuit for acquiring the counter electromotive force of brushless motor, and outputs signal to main control chip U6；Motor speed control circuit adjusts the duty ratio of the PWM wave of main control chip U6 output, adjusts brushless motor speed；The alternating current of input is converted to 12V and powered to driving circuit of brushless electric machine by power supply circuit, then 12V voltage is converted to 5V and 3.3V and is powered to main control chip U6 and switching circuit.The utility model both can remotely control brushless motor, can also closely manually control, mode of operation is simple.
Description
Technical field
The utility model relates to a kind of control circuits, specifically, being to be related to a kind of brushless electric machine control panel.
Background technique
Brushless motor is made of motor body and driver, is a kind of typical electromechanical integrated product, brushless motor
Though the development time in China is short, extensive at present to use as the increasingly mature of technology is grown rapidly with perfect
In fields such as military equipment, electronic information equipment, industrial equipment, household electrical appliance, the vehicles.
In existing brushless motor control circuit, relate only to how to control opening for brushless motor in working site mostly
Dynamic or stopping in some outside works and uses in equipment of the brushless motor as driving source, if user can not remotely control
The working condition of brushless motor can then bring inconvenience to controling and monitoring for equipment.
Utility model content
The purpose of this utility model is to provide a kind of brushless electric machine control panels, and solving existing control circuit cannot achieve far
Process control, the problem of bringing inconvenience to user.
To achieve the above object, the technical solution adopted in the utility model is as follows:
A kind of brushless electric machine control panel, including the network communication control module for receiving remote control signal, model
The main control chip U6 of STM32F103C8T6, the peripheral circuit being connected on main control chip U6, switching circuit, brushless motor driving
Circuit, counter electromotive force Acquisition Circuit, motor speed control circuit, power supply circuit；
Switching circuit is connected to the input terminal of driving circuit of brushless electric machine, manually controls for switching and remotely controls two
Kind mode；When to manually control, the control signal exported by main control chip U6 is received；When for long-range control, receive by net
The control signal of network communication control module output；
Driving circuit of brushless electric machine is connect with the output end of switching circuit and main control chip U6, according to control signal control
The stopping or unlatching of brushless motor；
Counter electromotive force Acquisition Circuit for acquiring the counter electromotive force of brushless motor, and outputs signal to main control chip U6；
Motor speed control circuit is connected on main control chip U6, adjusts the duty ratio of the PWM wave of main control chip U6 output, and
It exports for adjusting the PWM wave of brushless motor speed to driving circuit of brushless electric machine；
The alternating current of input is converted to 12V and powered to driving circuit of brushless electric machine, then 12V voltage is converted by power supply circuit
It powers for 5V and 3.3V to main control chip U6 and switching circuit.
Further, the network communication control module includes the communication chip of model AIR202, is connected to communication core
On piece is used to generate the SIM card circuit of GPRS network, is connected on 32 pins of communication chip and controls signal for remotely receiving and dispatching
Antenna, signal output end of 7 pins of the communication chip as network communication control module.
Further, the switching circuit includes resistance R75, the resistance that one end is connect with resistance R75, the other end is grounded
R80, the triode Q11 that base stage is connected on the tie point of resistance R75 and resistance R80, emitter is grounded, anode are connected to three poles
The diode D18 of pipe Q11 collector, 1 pin are connected to the relay KC2 of diode D18 anode, the capacitor C47 of one end ground connection,
The other end of the capacitor C47,4 pins of relay are connect with the input terminal of driving circuit of brushless electric machine, the relay
2 pins, 3 pins connect with diode D18 cathode, the cathode of the diode D18 is loaded with 5V power supply, the relay
Model HF49F；
The other end of the resistance R75 is signal input part, when signal input part connects the letter in network communication control module
It is distance control mode when number output end；When signal input part connects in 45 pin of main control chip U6, to manually control mould
Formula.
Further, the driving circuit of brushless electric machine includes the driving chip U7 of model JY02A, and one end is connected to drive
17 pins, the other end of dynamic chip U7 is connected to the resistance R78 on 10 pins of main control chip U6, and input terminal is connected to driving core
The first control circuit of 10 pins of piece U7,11 pins, input terminal be connected to 12 pins of driving chip U7,13 pins second
Control circuit and input terminal are connected to the third control circuit of 14 pins of driving chip U7,15 pins, are respectively intended to control
Three tunnel phase lines of brushless motor, and first control circuit, second control circuit are identical with the circuit structure of third control circuit.
Further, the first control circuit includes the control chip U1 of model IR2213S, and one end is grounded, is another
The capacitor C1 of 11 pins of control chip U1 is terminated at, input terminal is connected to 1 pin for controlling chip U1,2 pins and 3 pins
First circuit and input terminal are connected to the second circuit of 6 pins of control chip U1,7 pins and 8 pins, the control core
12 pins of piece U1 are connect with 10 pins of driving chip U7, and 14 pins of the control chip U1 draw with the 11 of driving chip U7
Foot connection.
Further, first circuit includes 2 pins of end Jie control chip U1, another terminates at control chip
The capacitor C5 of 3 pins of U1, the resistance R7 being connected on 1 pin of control chip U1, one end connect with resistance R7, is another after parallel connection
One end Jie controls the capacitor C9 and resistance R9 on 2 pins of chip U1, the latter company for terminating at resistance R7 Yu capacitor C9 of connecting
The resistance R6 and diode D4 of junction, another 1 pin for terminating at control chip U1, wherein the cathode and electricity of diode D4
Resistance R6 connection and grid are connected to the source electrode and control chip U1 of the metal-oxide-semiconductor Q2, the metal-oxide-semiconductor Q2 of the anode of diode D4
2 pins connection, the tie point be used as current output terminal IOUT, it is described control chip U1 3 pins connect 12V power supply；
The second circuit is identical as the first circuit structure, and the drain electrode of metal-oxide-semiconductor is loaded with 540V voltage in second circuit, the
The source electrode of metal-oxide-semiconductor is connect with the drain electrode of metal-oxide-semiconductor in the first circuit in two circuits, and the tie point is the access point of brushless motor.
Further, the counter electromotive force Acquisition Circuit is provided with three tunnels, and the counter electromotive force Acquisition Circuit includes all the way
The resistance R40 of the 19 pins connection of the connection of the access point of one end and brushless motor, the other end and driving chip U7, one end after parallel connection
The resistance R42 and capacitor C43 of the 19 pins connection of ground connection, the other end and driving chip U7 and one end are with driving chip U7's
The resistance R41 of the 18 pins connection of the connection of 19 pins, the other end and driving chip U7.
Further, the motor speed control circuit includes 29 pins, another that one end is connected to main control chip U6 after series connection
The resistance R73 and resistance R76 of ground connection are held, and the capacitor C46, the resistance R73 and resistance R76 being connected in parallel on resistance R76
Tie point is connect with 2 pins of driving chip U7.
Further, voltage detecting circuit, the voltage detecting circuit are also connected on the driving circuit of brushless electric machine
Resistance R81 and resistance R89 including latter end ground connection of connecting, another termination 540V power supply, the capacitor being connected in parallel on resistance R89
C49, the resistance R81 and the tie point of resistance R89 and 3 pins of driving chip U7 are connect.
Further, current limit circuit is set between the current output terminal IOUT and 6 pins of driving chip U7.
Compared with prior art, the utility model has the following beneficial effects:
(1) the utility model, which is provided with, manually controls and remotely controls both of which, is switched by switching circuit different
Mode is distance control mode when the signal input part of switching circuit connects in the signal output end of network communication control module,
Long-range control signal is received by network communication control module, and controls the working condition of brushless motor；Work as signal input part
It connects in 45 pin of main control chip U6, is MANUAL CONTROL mode；The utility model can be acquired by counter electromotive force Acquisition Circuit
The counter electromotive force of three tunnel phase lines of brushless motor exports PWM wave further according to collection result control main control chip U6, and by motor tune
Fast circuit adjusts its duty ratio, to adjust the revolving speed of brushless motor, solving existing control circuit cannot achieve long-range control,
The problem of bringing inconvenience to user, realizes the purpose of long-range control brushless motor, while can also closely manually control,
Mode of operation is simple.
(2) the utility model is provided with current-limiting circuit, and the resistance and capacitance of the current-limiting circuit are adjustable, according to access
Brushless motor determine size, thus limit flow into brushless motor electric current, achieve the purpose that protect motor, avoid brushless motor
It is influenced and is damaged by high current.
(3) the utility model is provided with current detection circuit, indirectly controls brushless motor by main control chip in over-voltage
It stops operating, achievees the purpose that protect motor.
(4) the utility model is provided with motor speed control circuit, exports PWM wave by main control chip U6, and be transmitted to brushless
Motor-drive circuit, brushless motor shows different revolving speeds according to the PWM wave of obtained different duty, easy to adjust.
Detailed description of the invention
Fig. 1 is the principles of the present invention block diagram.
Fig. 2 is the main control chip and peripheral circuit diagram of the utility model.
Fig. 3 is the circuit diagram of the switching circuit of the utility model.
Fig. 4 is the partial circuit diagram of the driving circuit of brushless electric machine of the utility model.
Fig. 5 is the circuit diagram of the first control circuit of the utility model.
Fig. 6 is the circuit diagram of the second control circuit of the utility model.
Fig. 7 is the circuit diagram of the third control circuit of the utility model.
Fig. 8 is the counter electromotive force Acquisition Circuit figure of the utility model.
Fig. 9 is the circuit diagram of the voltage detecting circuit of the utility model.
Figure 10 is the circuit diagram of the power supply circuit of the utility model.
Figure 11 is the circuit diagram of the motor speed control circuit of the utility model.
Figure 12 is the circuit diagram of the current-limiting circuit of the utility model.
Specific embodiment
The utility model is described in further detail with embodiment for explanation with reference to the accompanying drawing, and the mode of the utility model includes
But it is not limited only to following embodiment.
Embodiment
As shown in Fig. 1~12, a kind of brushless electric machine control panel disclosed by the utility model, including for receiving long-range control
The network communication control module of signal, the main control chip U6 of model STM32F103C8T6 are connected to outer on main control chip U6
Enclose circuit, switching circuit, driving circuit of brushless electric machine, counter electromotive force Acquisition Circuit, motor speed control circuit, power supply circuit；
Switching circuit is connected to the input terminal of driving circuit of brushless electric machine, manually controls for switching and remotely controls two
Kind mode；When to manually control, the control signal exported by main control chip U6 is received；When for long-range control, receive by net
The control signal of network communication control module output；
Driving circuit of brushless electric machine is connect with the output end of switching circuit and main control chip U6, according to control signal control
The stopping or unlatching of brushless motor；
Counter electromotive force Acquisition Circuit for acquiring the counter electromotive force of brushless motor, and outputs signal to main control chip U6；
Motor speed control circuit is connected on main control chip U6, adjusts the duty ratio of the PWM wave of main control chip U6 output, and
It exports for adjusting the PWM wave of brushless motor speed to driving circuit of brushless electric machine；
The alternating current of input is converted to 12V and powered to driving circuit of brushless electric machine, then 12V voltage is converted by power supply circuit
It powers for 5V and 3.3V to main control chip U6 and switching circuit.
The network communication control module of the utility model includes the communication chip of model AIR202, is connected to communication chip
On for generating the SIM card circuit of GPRS network, be connected on 32 pins of communication chip for remotely receiving and dispatching control signal
Antenna, signal output end of 7 pins of the communication chip as network communication control module.
The utility model, which is provided with, to be manually controlled and remotely controls both of which, switches different moulds by switching circuit
Formula, the switching circuit include resistance R75, and one end connect with resistance R75, the resistance R80 of other end ground connection, and base stage is connected to electricity
It hinders on the tie point of R75 and resistance R80, the triode Q11 of emitter ground connection, anode is connected to the two of triode Q11 collector
Pole pipe D18,1 pin are connected to the relay KC2 of diode D18 anode, and the capacitor C47 of one end ground connection, the capacitor C47's is another
One end, relay 4 pins connect with the input terminal of driving circuit of brushless electric machine, 2 pins of the relay, 3 pins with
The connection of diode D18 cathode, the cathode of the diode D18 are loaded with 5V power supply, the model HF49F of the relay；Institute
The other end for stating resistance R75 is signal input part, when signal input part connects in the signal output end of network communication control module,
For distance control mode, long-range control signal is received by network communication control module, and controls the work shape of brushless motor
State；When signal input part connects in 45 pin of main control chip U6, for MANUAL CONTROL mode.
In circuit design, three feet are set on circuit boards and arrange needle, row's needle of side and 7 pins of communication chip connect
It connects, row's needle of the other side is connect with 45 pins of main control chip U6, the other end of intermediate row's needle connection resistance R75, i.e. signal
Input terminal；When switching remotely controls and manually controls both of which, it is shorted any row's needle of intermediate row needle and two sides
It realizes.
The driving circuit of brushless electric machine of the utility model setting includes the driving chip U7 of model JY02A, one end connection
Resistance R78 on 10 pins that 17 pins, the other end of driving chip U7 are connected to main control chip U6, input terminal are connected to drive
The first control circuits of 10 pins of dynamic chip U7,11 pins, input terminal are connected to 12 pins of driving chip U7,13 pins
Second control circuit and input terminal are connected to the third control circuit of 14 pins of driving chip U7,15 pins, are respectively intended to
Control three tunnel phase lines of brushless motor, and the circuit structure phase of first control circuit, second control circuit and third control circuit
Together, the signal input part of voltage detecting circuit connects on 3 pins of driving chip U7.
Wherein, the first control circuit includes the control chip U1 of model IR2213S, one end ground connection, another termination
In the capacitor C1 of 11 pins of control chip U1, input terminal is connected to the first of 1 pin for controlling chip U1,2 pins and 3 pins
Circuit and input terminal are connected to the second circuit of 6 pins of control chip U1,7 pins and 8 pins, the control chip U1
12 pins connect with 10 pins of driving chip U7, it is described control chip U1 14 pins and driving chip U7 11 pins connect
It connects.
Specifically, first circuit includes that an end Jie controls 2 pins of chip U1, another terminate at controls chip U1
3 pins capacitor C5, the resistance R7 being connected on 1 pin of control chip U1, it is in parallel after one end connect with resistance R7, be another
The capacitor C9 and resistance R9 on 2 pins of control chip U1 are terminated at, the latter connection for terminating at resistance R7 Yu capacitor C9 of connecting
Point place, it is another terminate at control chip U1 1 pin resistance R6 and diode D4, wherein the cathode and resistance of diode D4
R6 connection and grid are connected to the source electrode and the 2 of control chip U1 of the metal-oxide-semiconductor Q2, the metal-oxide-semiconductor Q2 of the anode of diode D4
Pin connection, the tie point connect 12V power supply as current output terminal IOUT, 3 pins of the control chip U1；Second electricity
Road is identical as the first circuit structure, and the drain electrode of metal-oxide-semiconductor is loaded with 540V voltage in second circuit, the source of metal-oxide-semiconductor in second circuit
Pole is connect with the drain electrode of metal-oxide-semiconductor in the first circuit, and the tie point is the access point of brushless motor.
In the present invention, the counter electromotive force Acquisition Circuit is provided with three tunnels, is respectively used to acquisition brushless motor
The counter electromotive force of three tunnel phase lines, the counter electromotive force Acquisition Circuit includes the access point connection, another of one end and brushless motor all the way
The resistance R40 that one end is connect with 19 pins of driving chip U7, in parallel latter end ground connection, the other end and driving chip U7 19 draw
The resistance R42 of foot connection and capacitor C43 and one end connect with 19 pins of driving chip U7, the other end and driving chip U7
18 pins connection resistance R41；During brushless motor rotation, counter electromotive force Acquisition Circuit acquires three tunnel phase lines in real time
Counter electromotive force, when detecting that counter electromotive force is excessive, then reduce main control chip U6 output PWM wave duty ratio, reduce it is brushless
The revolving speed of motor, to reduce counter electromotive force.
For the ease of adjusting the revolving speed of brushless motor, 29 pins of the main control chip U6 and 2 pins of driving chip U7
Between be provided with motor speed control circuit, the motor speed control circuit include after series connection one end be connected to the 29 of main control chip U6 and draw
The resistance R73 and resistance R76 that foot, the other end are grounded, and the capacitor C46, the resistance R73 and electricity that are connected in parallel on resistance R76
The tie point of resistance R76 is connect with 2 pins of driving chip U7；The PWM wave of the 29 pins output of main control chip U6 is accessed, and is passed through
2 pins of driving chip U7 are transmitted to after motor speed control circuit adjusting duty ratio, brushless motor is according to obtained different duty
PWM wave show different revolving speeds.
The utility model is also provided with voltage detecting circuit, and the voltage detecting circuit includes that the latter end of series connection is grounded, is another
The resistance R81 and resistance R89 of one termination 540V power supply, capacitor C49, the resistance R81 and the resistance being connected in parallel on resistance R89
The tie point of R89 is connect with 3 pins of driving chip U7；Voltage detecting circuit is for detecting brushless motor voltage, in over-voltage,
Main control chip U6 stops output PWM wave, and brushless motor stops working, and achievees the purpose that protect brushless motor.
It is damaged to protect brushless motor not influenced by high current, the current output terminal IOUT and driving chip U7
6 pins between current limit circuit is set, the current-limiting circuit by after connecting resistance and capacitor form with another resistor coupled in parallel,
In resistance and capacitance it is adjustable, size is determined according to the brushless motor of access, thus limit flow into brushless motor electricity
Stream equally can reach the purpose of protection motor.
During control, manually or remotely both of which is selected first, remotely passes through network communication when control
Control module output control signal passes through main control chip U6 output control signal, driving circuit of brushless electric machine root when manually controlling
According to starting or stoping for control signal control brushless motor；In the brushless motor course of work, counter electromotive force Acquisition Circuit is real-time
The counter electromotive force for acquiring three tunnel phase lines reduces the duty ratio of main control chip output PWM wave, motor tune when counter electromotive force is excessive
Fast circuit reduces the revolving speed of brushless motor according to the PWM wave of input, to reduce counter electromotive force；It is detected in voltage detecting circuit
When the voltage of brushless motor is excessive, main control chip does not export PWM wave at this time, and brushless motor is made to stop working.
By above-mentioned design, efficiently solve existing control circuit cannot achieve long-range control to the utility model, to making
The problem of user brings inconvenience, user both can remotely control brushless motor, can also closely manually control, mode of operation
Simply, and the current-limiting circuit of setting and voltage detecting circuit can reach the purpose for protecting brushless motor.
Above-described embodiment is only one of preferred embodiments of the present invention, should not be taken to limit the utility model
Protection scope, as long as the utility model body design thought and mentally make have no the change of essential meaning or profit
Color, it is solved the technical issues of it is still consistent with the utility model, the protection scope of the utility model should all be included in
Within.
Claims (10)
1. a kind of brushless electric machine control panel, which is characterized in that control mould including the network communication for receiving remote control signal
Block, the main control chip U6 of model STM32F103C8T6, the peripheral circuit being connected on main control chip U6, switching circuit is brushless
Motor-drive circuit, counter electromotive force Acquisition Circuit, motor speed control circuit, power supply circuit；
Switching circuit is connected to the input terminal of driving circuit of brushless electric machine, manually controls and remotely control two kinds of moulds for switching
Formula；When to manually control, the control signal exported by main control chip U6 is received；When for long-range control, reception is led to by network
Interrogate the control signal of control module output；
Driving circuit of brushless electric machine is connect with the output end of switching circuit and main control chip U6, brushless according to control signal control
The stopping or unlatching of motor；
Counter electromotive force Acquisition Circuit for acquiring the counter electromotive force of brushless motor, and outputs signal to main control chip U6；
Motor speed control circuit is connected on main control chip U6, adjusts the duty ratio of the PWM wave of main control chip U6 output, and is exported
For adjusting the PWM wave of brushless motor speed to driving circuit of brushless electric machine；
The alternating current of input is converted to 12V and powered to driving circuit of brushless electric machine, then 12V voltage is converted to 5V by power supply circuit
It powers with 3.3V to main control chip U6 and switching circuit.
2. a kind of brushless electric machine control panel according to claim 1, which is characterized in that the network communication control module packet
The communication chip for including model AIR202 is connected on communication chip for generating the SIM card circuit of GPRS network, is connected to logical
It interrogates for remotely receiving and dispatching the antenna of control signal on 32 pins of chip, 7 pins of the communication chip are as network communication control
The signal output end of molding block.
3. a kind of brushless electric machine control panel according to claim 2, which is characterized in that the switching circuit includes resistance
R75, the resistance R80 that one end is connect with resistance R75, the other end is grounded, base stage are connected to the tie point of resistance R75 Yu resistance R80
Upper, emitter ground connection triode Q11, anode are connected to the diode D18 of triode Q11 collector, and 1 pin is connected to two poles
The relay KC2 of pipe D18 anode, the other end of capacitor C47, the capacitor C47 of one end ground connection, relay 4 pins with
The input terminal of driving circuit of brushless electric machine connects, and 2 pins, 3 pins of the relay are connect with diode D18 cathode, described
The cathode of diode D18 is loaded with 5V power supply, the model HF49F of the relay；
The other end of the resistance R75 is signal input part, when to connect the signal in network communication control module defeated for signal input part
It is distance control mode when outlet；When signal input part connects in 45 pin of main control chip U6, for MANUAL CONTROL mode.
4. a kind of brushless electric machine control panel according to claim 3, which is characterized in that the driving circuit of brushless electric machine packet
The driving chip U7 of model JY02A is included, 17 pins, the other end that one end is connected to driving chip U7 are connected to main control chip U6
10 pins on resistance R78, input terminal is connected to the first control circuit of 10 pins of driving chip U7,11 pins, inputs
End is connected to 12 pins of driving chip U7, the second control circuit of 13 pins and input terminal and is connected to driving chip U7's
The third control circuit of 14 pins, 15 pins is respectively intended to three tunnel phase lines of control brushless motor, and first control circuit, the
Two control circuits are identical with the circuit structure of third control circuit.
5. a kind of brushless electric machine control panel according to claim 4, which is characterized in that the first control circuit includes type
Number be IR2213S control chip U1, one end ground connection, it is another terminate at control chip U1 11 pins capacitor C1, input terminal
The first circuit and input terminal for being connected to 1 pin for controlling chip U1,2 pins and 3 pins are connected to the 6 of control chip U1
12 pins of the second circuit of pin, 7 pins and 8 pins, the control chip U1 are connect with 10 pins of driving chip U7, institute
14 pins for stating control chip U1 are connect with 11 pins of driving chip U7.
6. a kind of brushless electric machine control panel according to claim 5, which is characterized in that first circuit includes a termination
In the capacitor C5 of 2 pins, another 3 pins for terminating at control chip U1 that control chip U1, be connected to control chip U1 1 is drawn
Resistance R7 on foot, it is in parallel after one end connect with resistance R7, another capacitor C9 and electricity terminated on 2 pins for controlling chip U1
R9 is hindered, at the latter tie point for terminating at resistance R7 and capacitor C9 of connecting, the resistance of another 1 pin for terminating at control chip U1
R6 and diode D4, wherein the cathode of diode D4 is connect with resistance R6 and grid is connected to the anode of diode D4
The source electrode of metal-oxide-semiconductor Q2, the metal-oxide-semiconductor Q2 are connect with 2 pins of control chip U1, the tie point as current output terminal IOUT,
3 pins of the control chip U1 connect 12V power supply；
The second circuit is identical as the first circuit structure, and the drain electrode of metal-oxide-semiconductor is loaded with 540V voltage, the second electricity in second circuit
The source electrode of metal-oxide-semiconductor is connect with the drain electrode of metal-oxide-semiconductor in the first circuit in road, and the tie point is the access point of brushless motor.
7. a kind of brushless electric machine control panel according to claim 6, which is characterized in that the counter electromotive force Acquisition Circuit is set
Three tunnels are equipped with, the counter electromotive force Acquisition Circuit includes access point connection, the other end and the driving of one end and brushless motor all the way
The resistance R40 of the 19 pins connection of chip U7, the electricity that 19 pins of the latter end ground connection of parallel connection, the other end and driving chip U7 connect
Resistance R42 and capacitor C43 and one end connect with 19 pins of driving chip U7,18 pins of the other end and driving chip U7 company
The resistance R41 connect.
8. a kind of brushless electric machine control panel according to claim 7, which is characterized in that the motor speed control circuit includes string
One end is connected to the resistance R73 and resistance R76 of 29 pins of main control chip U6, other end ground connection after connection, and is connected in parallel on resistance
Capacitor C46, the resistance R73 and the tie point of resistance R76 and 2 pins of driving chip U7 on R76 are connect.
9. a kind of brushless electric machine control panel according to claim 8, which is characterized in that on the driving circuit of brushless electric machine
It is also connected with voltage detecting circuit, the voltage detecting circuit includes connect latter end ground connection, another electricity for terminating 540V power supply
R81 and resistance R89 is hindered, the tie point and driving core of the capacitor C49, the resistance R81 and resistance R89 on resistance R89 are connected in parallel on
3 pins of piece U7 connect.
10. a kind of brushless electric machine control panel according to claim 9, which is characterized in that the current output terminal IOUT and
Current limit circuit is set between 6 pins of driving chip U7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920444258.9U CN209435056U (en) | 2019-04-03 | 2019-04-03 | A kind of brushless electric machine control panel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920444258.9U CN209435056U (en) | 2019-04-03 | 2019-04-03 | A kind of brushless electric machine control panel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209435056U true CN209435056U (en) | 2019-09-24 |
Family
ID=67979141
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920444258.9U Expired - Fee Related CN209435056U (en) | 2019-04-03 | 2019-04-03 | A kind of brushless electric machine control panel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209435056U (en) |
-
2019
- 2019-04-03 CN CN201920444258.9U patent/CN209435056U/en not_active Expired - Fee Related
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