CN212695925U - Circuit based on ML4425 simulation brushless motor control chip - Google Patents
Circuit based on ML4425 simulation brushless motor control chip Download PDFInfo
- Publication number
- CN212695925U CN212695925U CN202021439921.5U CN202021439921U CN212695925U CN 212695925 U CN212695925 U CN 212695925U CN 202021439921 U CN202021439921 U CN 202021439921U CN 212695925 U CN212695925 U CN 212695925U
- Authority
- CN
- China
- Prior art keywords
- pin
- optical coupler
- optocoupler
- circuit
- brushless motor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Control Of Motors That Do Not Use Commutators (AREA)
Abstract
The utility model discloses a circuit based on ML4425 simulation brushless motor control chip, its characterized in that: the controller ML4425 comprises an optical coupler U1 and an optical coupler U2, wherein the optical coupler U1 controls a BREAK port of the controller ML 4425; the optocoupler U2 controls the CAT port of the controller ML 4425. The utility model provides a circuit can be with opening of a line control motor and stop.
Description
Technical Field
The utility model belongs to the technical field of circuit control, a circuit based on ML4425 simulation brushless motor control chip is related to.
Background
ML4425 is a controller dedicated to an intelligent brushless motor from Micro Linear, and can provide a closed loop commutation control signal to a three-phase brushless motor, and at the same time, can control the motor speed in a PWM mode and protect the motor as necessary.
The start and stop of the ML4425 control motor are controlled through the BREAK port and the CAT port respectively. When the motor is required to stop, triggering the BREAK port to the ground; when restarting, the CAT port is disconnected after being triggered to the ground, and the BREAK port is disconnected at the same time. The control mode needs to adopt a single-pole double-throw switch for control, but cannot be realized when a control line needs to be adopted for starting and stopping the motor.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a circuit based on ML4425 simulation brushless motor control chip, this circuit can adopt opening of a line control motor to stop.
The technical scheme adopted by the utility model is that a circuit based on ML4425 simulation brushless motor control chip comprises an optical coupler U1 and an optical coupler U2, wherein the optical coupler U1 controls the CAT port of the controller ML 4425; the optocoupler U2 controls the BREAK port of the controller ML 4425.
The utility model is also characterized in that,
pin 1 of the optocoupler U1 is connected in parallel with pin 1 of the optocoupler U2; pin 2 of the optocoupler U1, pin 2 of the optocoupler U2, pin 3 of the optocoupler U1 and pin 3 of the optocoupler U2 are grounded simultaneously; pin 4 of the optical coupler U1 is connected with a CAT pin of the controller ML 4425; pin 4 of the optocoupler U2 is connected to the BREAK port of the controller ML 4425.
And a pin 1 of the optical coupler U1 and a pin 1 of the optical coupler U2 are connected in parallel to a 12V power supply through a current limiting resistor R1.
And a pin 1 of the optical coupler U1 and a pin 1 of the optical coupler U2 simultaneously lead out a CONTROL line.
Pin 4 of the optocoupler U1 is also grounded via a capacitor C1.
The utility model has the advantages that two optical couplings are adopted to simultaneously control the BREAK port and the CAT port, when the CTROL line is grounded, the optical coupling stops working, the CAT port is normally started, the BREAK port is in a suspended state, and the chip normally works; when the CTROL line is suspended, the optical coupler works, the CAT port and the BREAK port are grounded simultaneously, and the motor stops rotating.
Drawings
Fig. 1 is a schematic structural diagram of a circuit for simulating a brushless motor control chip based on ML4425 according to the present invention.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings and specific embodiments.
The utility model relates to a circuit based on ML4425 simulation brushless motor control chip, as shown in figure 1, including opto-coupler U1 and opto-coupler U2, opto-coupler U1 controls the BREAK port of controller ML 4425; the optocoupler U2 controls the CAT port of the controller ML 4425.
Pin 1 of the optocoupler U1 is connected in parallel with pin 1 of the optocoupler U2; pin 2 of the optocoupler U1, pin 2 of the optocoupler U2, pin 3 of the optocoupler U1 and pin 3 of the optocoupler U2 are grounded simultaneously; pin 4 of the optical coupler U1 is connected with a CAT pin of the controller ML 4425; pin 4 of the optocoupler U2 is connected to the BREAK port of the controller ML 4425.
And a pin 1 of the optical coupler U1 and a pin 1 of the optical coupler U2 are connected in parallel to a 12V power supply through a current limiting resistor R1.
And a pin 1 of the optical coupler U1 and a pin 1 of the optical coupler U2 simultaneously lead out a CONTROL line.
Pin 4 of the optocoupler U1 is also grounded via a capacitor C1.
The utility model relates to a theory of operation based on ML4425 simulation brushless motor control chip's circuit does: when the CONTROL line CONTROL is disconnected from the ground, the optocoupler U1 and the optocoupler U2 are connected, namely the pin 3 and the pin 4 of the optocoupler U1 and the pin 3 and the pin 4 of the optocoupler U2 are connected, the CAT pin and the BREAK pin of the controller ML4425 are grounded, and the controller ML4425 CONTROLs the motor to stop working; when the CONTROL line CONTROL is connected with the ground, the optocoupler U1 and the optocoupler U2 are cut off, the CAT pin of the controller ML4425 charges the starting capacitor C1, the BREAK pin is suspended, and the ML4425 CONTROLs the motor to start working.
The utility model relates to a difficult point of circuit based on ML4425 simulation brushless motor control chip lies in how to guarantee to carry out the electric motor rotor location when ML4425 restarts; the utility model discloses well ML4425 is through CAT port to electric capacity C1 charge and carry out the location that the phase lock carried out the rotor simultaneously, consequently must ensure to stop after no electric charge in the electric capacity C1 of CAT port, electric capacity C1 can recharge and carry out the rotor phase lock after the restart.
Claims (5)
1. A circuit based on ML4425 simulation brushless motor control chip is characterized in that: the controller ML4425 comprises an optical coupler U1 and an optical coupler U2, wherein the optical coupler U1 controls a CAT port of the controller ML 4425; the optocoupler U2 controls the BREAK port of the controller ML 4425.
2. The circuit of claim 1, wherein the circuit is based on ML4425 analog brushless motor control chip, and comprises: pin 1 of the optical coupler U1 is connected in parallel with pin 1 of the optical coupler U2; pin 2 of the optocoupler U1, pin 2 of the optocoupler U2, pin 3 of the optocoupler U1 and pin 3 of the optocoupler U2 are grounded simultaneously; pin 4 of the optical coupler U1 is connected with a CAT pin of the controller ML 4425; pin 4 of the optocoupler U2 is connected to the BREAK port of the controller ML 4425.
3. The circuit of claim 2, wherein the circuit is based on ML4425 analog brushless motor control chip, and comprises: and a pin 1 of the optical coupler U1 and a pin 1 of the optical coupler U2 are connected in parallel to be connected to a 12V power supply through a current limiting resistor R1.
4. The circuit of claim 3, wherein the circuit is based on ML4425 analog brushless motor control chip, and comprises: and a CONTROL line is simultaneously led out from a pin 1 of the optical coupler U1 and a pin 1 of the optical coupler U2.
5. The circuit of claim 4, wherein the circuit is based on ML4425 analog brushless motor control chip, and comprises: and the pin 4 of the optical coupler U1 is also grounded through a capacitor C1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021439921.5U CN212695925U (en) | 2020-07-20 | 2020-07-20 | Circuit based on ML4425 simulation brushless motor control chip |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021439921.5U CN212695925U (en) | 2020-07-20 | 2020-07-20 | Circuit based on ML4425 simulation brushless motor control chip |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212695925U true CN212695925U (en) | 2021-03-12 |
Family
ID=74898318
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021439921.5U Active CN212695925U (en) | 2020-07-20 | 2020-07-20 | Circuit based on ML4425 simulation brushless motor control chip |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212695925U (en) |
-
2020
- 2020-07-20 CN CN202021439921.5U patent/CN212695925U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA2807711C (en) | Signal transducer and control system for electrical equipment comprising the same | |
| CN101545497B (en) | Automobile engine cooling fan control system based on four-phase double-wire winding brushless DC motor | |
| CN104270052A (en) | Permanent magnet synchronous motor controller for vehicle | |
| CN101295933A (en) | Frequency conversion power source based on digital signal processor controlling | |
| CN206926605U (en) | A kind of motor-drive circuit | |
| CN204156768U (en) | The Switched Reluctance Motor that a kind of portable wireless controls | |
| CN212695925U (en) | Circuit based on ML4425 simulation brushless motor control chip | |
| CN200976558Y (en) | Permanent-magnetic brushless motor driving controller for electric vehicle | |
| CN203283049U (en) | Electro-vehicle drive control device | |
| CN111913468A (en) | Novel intelligent starting controller device and starting control method | |
| CN205647310U (en) | Brushless DC motor's DSP controlling means | |
| CN114352132A (en) | Electromagnetic lock control circuit and control method | |
| CN205901644U (en) | Protection device of incoming telegram is prevented in low energy consumption | |
| CN2181660Y (en) | Intelligent frequency-change refrigerating unit | |
| CN206903797U (en) | A kind of put-put electrically activates and TRT | |
| CN204993123U (en) | Controller for direct current brushless motor | |
| CN206332630U (en) | A kind of switched reluctance machines and its braking circuit | |
| CN205231956U (en) | Integrated servo motor | |
| CN211790725U (en) | Programmable control motor protector and mine underground winch dispatching system | |
| CN218162241U (en) | Starting circuit for multiple motors | |
| CN204506726U (en) | A kind of electronic outside rear-view mirror folding switch carrying protective circuit | |
| CN111682505B (en) | Programmable control motor protector and mine underground winch dispatching system and method | |
| CN215956298U (en) | Motor controller control module | |
| CN203166816U (en) | Control system of brushless DC motor used for air condition | |
| CN203840249U (en) | Fast braking circuit for three-phase electromagnetic speed reduction-type permanent-magnet synchronous motor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |