Motor Speed Controller- Electronic Project
Introduction:
Direct current (DC) motors find useful applications in many control project systems [1]. DC motor speed control is about the change of the Circuit diagram drive speed of the motor to a value required to perform a project system work process [2]. DC motors are made up of two basic parts namely the stator, which is the stationary part, and the rotor, the inner rotating part, usually called the armature. The rotational speed of a DC motor depends on the interaction and between the 2 magnetic fields set up by the stator’s stationary and permanent magnets and the project system armature’s rotating electromagnets. By controlling this interaction, as we can control the speed of rotation of the Circuit Diagram DC motor [3]. This speed control can be achieved in many different ways Circuit diagram. A simple and easy method is the use of pulse width modulation, as the PWM technique, which can be achieved by driving the power supply DC motor with a number of “on” and “off” pulses and varying the power supply duty cycle of the pulses while the Currenttlou frequency is kept constant [4].
Changing or modulating the timing of these pulses controls the speed of the motor, i.e., the longer the pulse is “on”, the faster the motor will rotate and the shorter the pulse is “on”, the slower the motor will rotate. Hence, the wider the pulse width, the more average voltage applied to the motor terminals, the stronger the magnetic flux inside the armature windings and the faster the motor will rotate. This way, the voltage across the terminals of the Circuit diagram motor can be regulated, and, hence the power supply applied to the motor can be controlled. In cases where “switching on” and “switching off” are done in quick succession, the motor rotates at a slower speed between zero and full rated speed [5].
This is what a PWM technique-based controller does: it switches the Circuit diagram motor “on” and “off” with a pulse power supply train. When the motor is “on” for a short period and “off” for a long one, it will rotate slowly. When the motor is “on” for most of the time and “off” only for a short while, it will rotate at a higher speed, say, nearly at full or maximum rated speed [6]. The aim of this work is to design and construct a circuit that will generate a pulse width modulation signal to control the motor speed. Initiating interrupt signals to the microcontroller using push switches (labeled as up- and down-buttons in this circuit) produces speed increase and decrease of the DC motor. This change in the motor’s speed was measured by a tachometer connected to the motor’s shaft, and the observations were in agreement with our expectations.
Diagram of DC motor controller, controlled by a digital voltage signal:
Hardware Required for this Project:
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Working Principle of A Brief Overview of a DC Motor Controller:
With the popularity of the GSM network, GSM terminal equipment is not only used in traditional voice communications but also be applied in the control area more and more widely. It shows some typical GSM-based applications and Siemens’s cellular engine TC35 is introduced. SMS-based remote control systems are discussed thoroughly in [1], as well as the hardware and software. The developed system makes use of advanced MCU and GSM techniques but the cost is low. It can be used in remote access control and security with good value for applications.
One of the GSM-based applications is to control the climate perimeter of a greenhouse [2]. The main purpose of the system conception is to control of the climatic parameters that influence the production in the greenhouse, such as temperature, relative humidity of air, and soil moisture. In their project system,as with a simple message, all farmers can control their greenhouses from a Circuit diagram distance. They can monitor the status of their greenhouse climate at any time for temperature and humidity readings and can control actuators to adjust certain parameters such as fan, heater, and vent.
GSM SMS remote appliance control system based on Field-Programmable Gate Array (FPGA) has been developed by [3]. It mainly designs a remote appliance control system using the GSM SMS to finally achieve the dual-mode control of phone and SMS control, which makes the remote appliance control system perfect. As the control core, FPGA enables the system to be nimble to dispose of and have an extended function. The main work completed in [3] includes hardware module design (GSM SMS module, RS232 interface module, and the temperature monitor module), FPGA logic design, and system board-level verification.
A system to control and monitor electric circuitry through SMS using a microcontroller has also been developed [4]. This system used PIC 16F877A microcontroller remotely which performs all functions of the system. Standard Attention Commands are used to control the operation of SMS in the mobile phone. SMS is produced using the concept of Protocol Data Unit. [4] suggests that the system can be used for many applications such as remote sensing of meteorological information and vehicle security systems with location finder.
A system based on a GSM network was introduced where the power earth lines status can be reliably monitored [5]. Using SMS resources of grip GSM, monitor network is achieved of data remote transmission. That system is composed of a monitor center with intelligent power earth lines instruments. Data transmission theory and SMS of GSM being analyzed, the design of intelligent earth line monitor instrument was discussed in detail. The instrument consists of hardware design and software design. Hardware design is composed of a microcontroller 89- C2051 system, GSM data transmission mode, earth line status monitor circuit, read card unit of IC (identification card), and memory card. By using serial communication control G100A SMS mode, data wireless transmission can be performed.
Frequently Asked Questions
A brushed DC motor controller manages the Power Supply speed and torque of the motor by regulating the voltage and injected into it. Most modern controllers do it with the help of a switching voltage regulator and pulse-width modulation (PWM).
The VFD performs 2 functions: First, it converts the incoming AC signal to a power supply DC signal by rectification; and second, it inverts the rectified DC signal back to a variable frequency AC signal Circuit diagram. A DC motor could have its speed changed by increasing or decreasing the Project system applied voltage.
In the case of a DC shunt motor, flux is practically constant as the field is parallel to the armature. If the load is increased, then the speed of the Circuit diagram motor will remain almost constant Currenttlou because the field current remains almost Power Supply constant. So that it is also known as a Circuit diagram constant-speed motor.
For most applications involving a DC or BLDC (brushless DC) motor, Power Supply it is advisable to use a motor controller or circuit diagram in fact if you are using a brushless (electrically and commutated “EC”) motor, then you have to use a controller to fire the Project System correct phase winding at the right time.
Yes, a programmable logic controller (PLC) can be driven by a direct current (DC) power source. PLCs are commonly powered by DC voltage, typically in the range of 24V DC to 48V DC, although some PLCs can also operate on higher voltage DC power supplies.
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