Universal Input AC/DC Switching Buck Regulator – 85V -265V AC Input – 5V/150mA DC Output

Universal Input AC/DC Switching Buck Regulator – 85V -265V AC Input – 5V/150mA DC Output

The project presented here is a universal input AC/DC switching buck regulator with ultra-low standby power that is capable of delivering up to 2.5W output power. The RAA223012 chip is the heart of the project which combines constant off-time control for heavy load and Pulse Frequency...

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Universal AC Voltage Step-Down Power Converter – 18V DC Output From 85-265V AC Input

Universal AC Voltage Step-Down Power Converter – 18V DC Output From 85-265V AC Input

The project described here is an off-line universal AC Voltage input step-down regulator which provides accurate constant voltage (CV) output, outstanding low standby power, high efficiency at light load, and excellent dynamic response based on non-isolated buck topology. The project...

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230V AC Input – 12V Output DC Converter, Non-Isolated Buck Converter

230V AC Input – 12V Output DC Converter, Non-Isolated Buck Converter

The project described here outputs 12V DC voltage from the input of 230V AC. The output current is up to 100mA.  The project is based on BM2P129TF chip which is PWM method DC/DC converter with a built-in 650V MOSFET. BM2P129TF contributes to low power consumption by built-in a 650V...

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