What is a Curtis controller?
The Curtis Model 1212 Motor Speed Controller provides precise and smooth control of permanent magnet drive motors for battery powered vehicles. Motor Type. Brushed DC Permanent Magnet.
How does a DC motor speed controller work?
Thus, the speed of a DC motor can control in three ways: By varying the flux, and by varying the current through field winding. By varying the armature voltage, and the armature resistance. Through the supply voltage.
What is a DC speed controller?
A DC motor controller manipulates the position, speed, or torque of a DC-powered motor and easily reverses, so the DC motor drive current runs in the opposite direction. Enjoy higher starting torque, quick starting and stopping, reversing, variable speeds with voltage input and more.
Where are Curtis controllers made?
Thank you for your interest in Curtis, CA in Livermore, CA. Curtis California is one of the world’s largest controller technical centers and is a highly specialized engineering facility focused on the design and development of advanced motor speed controllers for electric vehicles of all types.
Why do DC motors have 3 wires?
The three wires give the brushless motors more pulling power. Understanding this helps understand stepper motors below. The two wires of the brushed dc motor can be thought of as forward and reverse. The three wires of brushless can be thought of as 1, 2 and 3.
How do you slow down a 12 volt DC motor?
If you want to reduce rpm without compromising speed regulation then use a voltage regulator or PWM controller to lower the motor voltage. If you also want higher torque then use a gearbox (which increases torque by the same proportion as it reduces shaft rpm).
Do you need a controller for a DC motor?
For most applications involving a DC or BLDC (brushless DC) motor, it is advisable to use a motor controller, in fact if you are using a brushless (electrically commutated “EC”) motor, then you have to use a controller to fire the correct phase winding at the right time.
What is controller for electric company?
A controller includes means to connect the motor to the electrical power supply, and may also include overload protection for the motor, and over-current protection for the motor and wiring.
What is a motor controller board?
Motor controllers are devices that regulate the operation of an electric motor. In artificial lift applications, motor controllers generally refer to those devices used in conjunction with switchboards or variable frequency drives to control the operation of the prime mover.
How many leads does a DC motor have?
Brushed DC motors have two wires because they require DC current (+VCC and Ground), while brushless motors require more complex driving circuitry which controls the AC current required to drive them.
How can you reduce the RPM of a DC motor?
Thus, the speed of a DC motor can be controlled in three ways:
- By varying the supply voltage.
- By varying the flux, and by varying the current through the field winding.
- By varying the armature voltage, and by varying the armature resistance.
How does speed controller work?
An electronic speed control follows a speed reference signal (derived from a throttle lever, joystick, or other manual input) and varies the switching rate of a network of field effect transistors (FETs). By adjusting the duty cycle or switching frequency of the transistors, the speed of the motor is changed.
How can DC motor speed be controlled using microcontroller?
By using Pulse-width modulation (PWM) we can easily control the average power delivered to a load and using this technique we can easily control the speed of the DC Motor….C code to control DC Motor using the PIC Microcontroller using L293D:
| S1 | S2 | PWM (Duty Cycle) |
|---|---|---|
| LOW | LOW | 25% |
| LOW | HIGH | 50% |
| HIGH | LOW | 75% |
| HIGH | HIGH | 100% |
How do I choose a motor controller?
Choosing a Motor Controller
- The first consideration is the motor’s nominal voltage.
- Once you have found a range of controllers that can power the motor with the appropriate voltage, the next consideration is the continuous current the controller will need to supply.
- The Control method is another important consideration.