600W – 230VAC – High Voltage DC Motor Speed Controller – Heater Controller – Lamp/LED Dimmer
https://www.electronics-lab.com/600w-230vac-high-voltage-dc-motor-speed-controller-heater-controller-lamp-led-dimmer/
This is a very powerful DC Motor speed controller for DC motors up to 330V DC and current up to 2A. Basically, the project is a high voltage PWM source with adjustable frequency and adjustable PWM duty cycle range 0 to 99%. The board has been designed considering many applications and the circuit can be […]
Joystick Controlled 2 x RC Servo motors – Arduino Compatible
https://www.electronics-lab.com/joystick-controlled-2-x-rc-servo-motors-arduino-compatible/
This project enables easy control of 2 RC servo motors using a thumb joystick. This is an Arduino compatible project and it consists of a thumb joystick, ATMEGA328 microcontroller, filter capacitor on dc supply, and other components. The thumb joystick has 2 axes, X and Y. The joystick consists of 2 x 10K potentiometers. These […]
Voltage-Controlled Pulse Width Modulator (PWM) – PWM Signal Generator
https://www.electronics-lab.com/voltage-controlled-pulse-width-modulator-pwm-pwm-signal-generator/
This is an easy-to-use voltage to PWM converter. The project occupies very little space. The circuit is built using the versatile silicon timing device LT6992-1 chip. Pulse Width Modulation (PWM) Controlled by Simple 0V to 1V Analog Input, multiturn trimmer potentiometer provided to adjust the duty cycle 0 to 100 %. The circuit also has […]
Multiphase Oscillator with 40% Spread Spectrum Frequency Modulation and 250Khz Output Frequency
https://www.electronics-lab.com/multiphase-oscillator-with-40-spread-spectrum-frequency-modulation-and-250khz-output-frequency/
This is a precision, low power, and easy-to-use oscillator that provides multiphase outputs. The output frequency of the project is set to 250Khz, with 40% spread spectrum. The oscillator frequency can be set by resistor R1, and the spread spectrum can be changed using R3. The master oscillator is controlled by the RSET resistor R1 […]
H-Bridge Motor Driver with Integrated Current Sense and Regulation using DRV8874
https://www.electronics-lab.com/h-bridge-motor-driver-with-integrated-current-sense-and-regulation-speed-control-direction-control-current-regulation-over-current-trip/
In past, we have published many brushed dc motor driver boards for various projects and usually, they have some sort of limitations, as some of them are large in size, require large size heatsink, doesn’t have current feedback, they don’t have overload protection, some require external large size current shunt resistor and after all, recently […]
60W LED Dimmer for 12V LEDs using 555 Timer
https://www.electronics-lab.com/60w-led-dimmer-for-12v-leds-using-555-timer/
The project shown here is a cheap 60W LED dimmer for 12V LEDs/12V LED strips. The circuit is based on the very popular, versatile, and low-cost 555 timer IC, NE555 IC generates a PWM signal and IRF540 MOSFET works as output driver for the LEDs. In this circuit the 555 IC used in an astable […]
Maxim Integrated MAX17623/MAX17624 Evaluation Kits
https://www.electronics-lab.com/maxim-integrated-max17623-max17624-evaluation-kits/
Maxim Integrated MAX17623/MAX17624 Evaluation Kits is configured to evaluate the MAX17623/MAX17624 Step-Down Converters’ operation. The MAX17623/MAX17624 Step-Down Converters are part of the Himalaya series of products that enable cooler, smaller, and simpler power supply solutions. The devices are configured to demonstrate optimum performance and component sizes in the Evaluation Kits. The Maxim MAX17623/MAX17624 Evaluation Kits […]
Smart RGB LED Light Stick – Arduino Compatible
https://www.electronics-lab.com/smart-rgb-led-light-stick-arduino-compatible/
This is a Smart LED light stick that contains 20 x WS2812B single wire addressable full colors RGB LEDs and Atmega328 microcontroller. These full colors chainable intelligent RGB LEDs work with a single wire addressable protocol thus they require a micro-controller to generate the pulse train to control the colors and flashing effects. Refer to […]
PWM Module with Dual Source/Sink Outputs using SG3525
https://www.electronics-lab.com/pwm-module-with-dual-source-sink-outputs-using-sg3525/
SG3525 PWM module is a great tool for every hobbyist. This circuit can be used in various applications such as switching power supply, DC-DC converter, DC motor speed controller, LED dimer, High voltage power supply, solenoid driver, and electronic DC load. This low-cost pulse width modulator control circuit offers improved performance. The circuit has various […]
E522.48 – 16 channel automotive LED driver with bus interface
https://www.electronics-lab.com/e522-48-16-channel-automotive-led-driver-with-bus-interface/
The E522.48 is a multi-channel PWM driver for e.g. light application. It provides 16 current sinks with integrated 10bit PWM generator for each channel. Each of the drivers can digitally be configured to drive up to 100mA with a selectable slew rate. The device supports I²C bus controlled operation to enable fast light animation sequences. […]