Making a 220v Generator with a 775 Motor Without Mosfet still produces large capacity
PLCTECH would like to share with you 5 DC motor speed control circuits, which are:
1. Circuit diagram for speed control of 12V DC motor using simple Mosfet
2. Motor speed control circuit using IC555
3. Circuit diagram for speed control of DC motor by arduino
4. H-bridge uses 4 N . channel mosfets
5. Circuit diagram for speed control of DC motor using L29 . module
Let's analyze the advantages, disadvantages and operating principles to better understand each circuit below.
DC 12V motor speed control circuit using simple Mosfet
Simple circuit to control DC motor with Mosfet: Speed regulation by rheostat.
Based on the principle of voltage divider bridge, adjust the voltage at terminal G to control Mosfet. As the voltage divider increases, the voltage drop across the Mosfet decreases, the motor speed increases
DC 12V motor speed control circuit using simple Mosfet
A simple circuit with just a few components can change the voltage of a small 12V DC motor. The disadvantage of this circuit is that the capacity is small due to the voltage drop on the large Mosfet, if the motor is large, it will quickly heat up the Mosfet. This design makes the Mosfet not conduct saturated so the motor cannot reach maximum speed.
Motor speed control circuit using IC555
IC NE555 receives voltage pulses in the form of sawtooth pulses generated by circuits R, C at pins 2, 6. After passing IC555 we get square pulses, pulse width can be changed. The frequency of the electrical pulse depends on the R, C values.
IC555 generates a PWM pulse to control the opening and closing of the power Mosfet. The DC motor speed will depend on the PWM pulse width.
Motor speed control circuit using IC555
Advantages: No need to program, cheap circuit but large capacity. Wide speed control range and high performance. High voltage motor control.
+ Disadvantages: The circuit is quite complicated, can not control the motor direction.
3/ Circuit diagram for speed control of DC motor by arduino
Similar to the control circuit using IC555, only the control circuit uses Arduino microcontroller instead of IC555. The Arduino is capable of generating PWM pulses with frequencies of 490Hz and 980Hz.
Circuit for controlling DC motor speed by arduino
+ Advantages: Simple circuit, high capacity and efficiency. Since it is programmed, it can be easily changed by software. And can extend other applications running in parallel.
+ Cons: Arduino UNO has a higher price than IC555 circuitry. It is necessary to program the Arduino to read the rheostat value and output a PWM pulse. The motor cannot be reversed.
4/ H-bridge uses 4 N . channel Mosfets
The function of the H-bridge is to control the direction and speed of the DC motor.
The control part can use a microcontroller or IC555 to generate PWM pulses. Motor speed increases when pulse width is changed from 50% to 0 or 100%. The motor reverses rotation when the pulse width changes past the 50% mark.
The driver circuit uses IC IR2103 to ensure that when leading the Mosfet leads to saturation, increasing the efficiency of the circuit.
The power circuit uses 4 large capacity Mosfet to be suitable for even large motor loads.
The advantage of the control circuit and the dynamic is well isolated, so the voltage of the control part does not depend on the power circuit. Therefore, it can control large-capacity motors, voltages up to 220V. Motor reverse control by rheostat.
Making a 220v Generator with a 775 Motor Without Mosfet still produces large capacity
PLCTECH would like to share with you 5 DC motor speed control circuits, which are:
1. Circuit diagram for speed control of 12V DC motor using simple Mosfet
2. Motor speed control circuit using IC555
3. Circuit diagram for speed control of DC motor by arduino
4. H-bridge uses 4 N . channel mosfets
5. Circuit diagram for speed control of DC motor using L29 . module
Let's analyze the advantages, disadvantages and operating principles to better understand each circuit below.
DC 12V motor speed control circuit using simple Mosfet
Simple circuit to control DC motor with Mosfet: Speed regulation by rheostat.
Based on the principle of voltage divider bridge, adjust the voltage at terminal G to control Mosfet. As the voltage divider increases, the voltage drop across the Mosfet decreases, the motor speed increases
DC 12V motor speed control circuit using simple Mosfet
A simple circuit with just a few components can change the voltage of a small 12V DC motor. The disadvantage of this circuit is that the capacity is small due to the voltage drop on the large Mosfet, if the motor is large, it will quickly heat up the Mosfet. This design makes the Mosfet not conduct saturated so the motor cannot reach maximum speed.
Motor speed control circuit using IC555
IC NE555 receives voltage pulses in the form of sawtooth pulses generated by circuits R, C at pins 2, 6. After passing IC555 we get square pulses, pulse width can be changed. The frequency of the electrical pulse depends on the R, C values.
IC555 generates a PWM pulse to control the opening and closing of the power Mosfet. The DC motor speed will depend on the PWM pulse width.
Motor speed control circuit using IC555
Advantages: No need to program, cheap circuit but large capacity. Wide speed control range and high performance. High voltage motor control.
+ Disadvantages: The circuit is quite complicated, can not control the motor direction.
3/ Circuit diagram for speed control of DC motor by arduino
Similar to the control circuit using IC555, only the control circuit uses Arduino microcontroller instead of IC555. The Arduino is capable of generating PWM pulses with frequencies of 490Hz and 980Hz.
Circuit for controlling DC motor speed by arduino
+ Advantages: Simple circuit, high capacity and efficiency. Since it is programmed, it can be easily changed by software. And can extend other applications running in parallel.
+ Cons: Arduino UNO has a higher price than IC555 circuitry. It is necessary to program the Arduino to read the rheostat value and output a PWM pulse. The motor cannot be reversed.
4/ H-bridge uses 4 N . channel Mosfets
The function of the H-bridge is to control the direction and speed of the DC motor.
The control part can use a microcontroller or IC555 to generate PWM pulses. Motor speed increases when pulse width is changed from 50% to 0 or 100%. The motor reverses rotation when the pulse width changes past the 50% mark.
The driver circuit uses IC IR2103 to ensure that when leading the Mosfet leads to saturation, increasing the efficiency of the circuit.
The power circuit uses 4 large capacity Mosfet to be suitable for even large motor loads.
The advantage of the control circuit and the dynamic is well isolated, so the voltage of the control part does not depend on the power circuit. Therefore, it can control large-capacity motors, voltages up to 220V. Motor reverse control by rheostat.
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