Dual Output Adjustable Linear Power Supply +/-1.2V to +/-12V @ 250mA
Power supply

Dual Output Adjustable Linear Power Supply +/-1.2V to +/-12V @ 250mA

This project is a solution to power up most devices or projects requiring dual (+/-) adjustable power. The circuit consists of a stepdown transformer, bridge rectifier, DC filter capacitors, LM317 positive and LM337 negative adjustable voltage regulators, 2 x trimmer pot for independent...

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Dual +5 V/-5V @ 200 mA Regulated Linear Power Supply
Power supply

Dual +5 V/-5V @ 200 mA Regulated Linear Power Supply

The project presented here is a dual AC to DC output linear power supply. This power supply provides low ripple low noise DC regulated output. Usually, transformer-based linear power supplies are considered very bulky and inefficient, but this power supply still is very important for...

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

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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300W Off-line Power Factor Correction (PFC) Boost Converter
Power supplyTop Stories

300W Off-line Power Factor Correction (PFC) Boost Converter

The circuit presented here is a 300W off-line power factor correction (PFC) boost converter providing a nominal regulated output voltage of 375V @ 0.8A of load current. The project accommodates an input voltage range of 85V AC to 265VAC and uses average current mode control at a fixed...

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3 Phase AC input – DC Output – High Voltage DC Power Supply (2KW)
Power supply

3 Phase AC input – DC Output – High Voltage DC Power Supply (2KW)

Although this power supply design is specific to the Intelligent Power Modules (IPM) VFD drives, high voltage boost converters, high voltage battery chargers, etc, the concept and circuit design may be used for any power supply that requires a high voltage output of up to 800V DC and 4...

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Isolated 50 W Quarter-Brick DC/DC Converter – 0RQB-50Y Series
Power supply

Isolated 50 W Quarter-Brick DC/DC Converter – 0RQB-50Y Series

Bel Power Solutions' DC/DC converters are offered in 5V, 12V, 15V, and 48V output options, with high input to output efficiency Bel Power Solutions' 0RQB-50Y05x series isolated DC/DC converter provides 50 W of output power from wide input voltage ranges: 24 V, 48 V, 72 V, 96 V,...

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DFRobot DFR0756 DC-DC Fast Charge Module
Power supply

DFRobot DFR0756 DC-DC Fast Charge Module

DFRobot DFR0756 DC-DC Fast Charge Module integrates the most common 5V charging-recognition function and provides compatibility for more than 99% of mobile phones on the market. The charging current at the peak of this module can be triggered by the charging protocol, which greatly...

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Switchmode Power Supply Topologies Explained
Basic ElectronicsPower supply

Switchmode Power Supply Topologies Explained

The role of power supply is crucial for electronic circuits because without sufficient power, the circuit cannot function at its optimal level. On the other hand, an exceeded power supply can deteriorate the circuit components by heating effect. There are usually two choices for power...

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