build a dc motor speed controller circuit
#DC motor
#speed control
#PWM
#motor driver
#potentiometer
#555 timer
#H-bridge
#voltage regulator
#DIY
#electronics project
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Electronic Roulette wheel with 20 LEDs and with 36 LEDs
In this electronic roulette wheel, the 555 timer functions as a pulse generator with a fading frequency. The 4017 counter activates LEDs sequentially in the selected string, while a D-type flip-flop (4013 IC) serves as a divider by two to...
regulator
Malcolm Moore's schematic is good, but it is insufficient for someone inexperienced with a soldering iron to create anything functional. Specifically, T1 is a coil of some type, but the configuration, as well as the values for Q1 and Q2,...
24 Second Shot Clocks
To initiate the process in 24 seconds, the LOAD switch and Reset switch must be pressed simultaneously. If this action is not performed, the countdown will commence from 99. A pulse input can be connected to a 555 astable multivibrator,...
0-50V 1A power supply with CA3086
This power supply circuit is highly stabilized that its output voltage will drop only 0.005% even though the load changes from 0 to 100%. Another excellent capability is that the output voltage will change only by 0.01% if the input...
Increasing Regulator Current
Although the 78xx series of voltage regulators are available with different current outputs, you can boost the available current output with this circuit. A power transistor is used to supply extra current to the load, maintaining a constant voltage. Currents...
555 Timer astable oscillator circuit
The 555 timer circuit has unsteady open and closing times that are independent of one another. One time constant is given by 1.1RcC2, while another time constant is defined as 1.1RcC3. The free-running period is the sum of these time...
Bi-directional Control Of Motors And The H-Bridge
Reversing the DC power connections on a motor causes its shaft to rotate in the opposite direction. One method to control the direction is by using switches arranged in a specific configuration known as an H-Bridge. For instance, when the...
dc motor control pwm 555
This simple DC motor control or PWM circuit using a 555 IC can be utilized to regulate the speed of a DC motor. The circuit is straightforward and can be assembled quickly if all components are readily available.
The described circuit...
555 Infrared Transmitter-Receiver
The infrared transmitter and receiver circuit depicted in the schematic diagram below can function as a remote control. The transmitter primarily operates as an oscillator.
The infrared transmitter and receiver circuit is designed to facilitate wireless communication through infrared signals, making...