Half-Bridge Driver with Inbuilt Oscillator

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https://www.electronics-lab.com/project/half-bridge-driver-with-inbuilt-oscillator/

This project is a Half Bridge with Inbuilt Oscillator utilizing the NCP1392B MOSFET driver and IRF540 MOSFETs for half-bridge topology applications. It allows for adjustable operating frequency from 25 kHz to 100 kHz with a trimmer potentiometer. The project includes brown-out protection, a PFC delay timer, and fixed dead time to improve performance. Designed for low-voltage applications up to 36V and 3A load current with forced air cooling, it can be modified for high-voltage use up to 400V by changing components like capacitors and MOSFETs. The operating frequency can be tuned up to 480 kHz depending on component values, with recommendations to consult the datasheet for optimal performance in higher frequency applications.

High Current Half-Bridge with Over Current & Voltage Feedback for Step Down DC-DC Converter

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https://www.electronics-lab.com/project/high-current-half-bridge-with-over-current-voltage-feedback-for-step-down-dc-dc-converter/

This project enables the user to create a high current DC-DC converter. The project consists of a high current inductor, high current low voltage 2 x MOSFETs, half-bridge driver LT1158 chip, voltage feedback using onboard R9 and R10 resistor dividers, shunt resistor for overcurrent shut-down. The project has all the required components to create a […]

60W LED Dimmer for 12V LEDs using 555 Timer

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https://www.electronics-lab.com/project/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 […]