DESCRIPTION. Third generation Power MOSFETs from Vishay provide the designer with the best combination of fast switching, ruggedized. IRFPN Transistor Datasheet, IRFPN Equivalent, PDF Data Sheets. MOSFET. Parameters and Characteristics. Electronic Component Catalog. IRFPN datasheet, IRFPN circuit, IRFPN data sheet: IRF – Power MOSFET(Vdss=55V, Rds(on)=ohm, Id=53A),alldatasheet, datasheet.

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It’s pretty reliable and powerful Very precise Low noise Relatively quick to respond to load transients. A Raspberry PI based control interface. I’m also looking at your dummy loadsurely you know what you’re doing. I reduced this a lot but I didn’t want to compromise the speed.

These proved to be pretty robust, had good thermal transfer and low enough gate charge to drive quickly for my purposes. If you decide to do something with my design consider buying irfp04n a beer! As this is a linear supply managing waste heat is a big factor.

As a student i want to build oneprobably a stripped down version without the preregulator. This means a decent graphical display is required To have an Ethernet interface.


IRFPN Datasheet (PDF Download) 7/9 Page – International Rectifier

Hi first of all i must say that this is a real power supply and probably one of the most complete on the internet. See here for the first attempt. The project intro blog talks more about what I was originally thinking. In the end I decided to manually wind an additional winding onto the transformers and run this is series with the output winding.


Yeha i’ve just googled it and i’ve found it on github it’s strange that this psu isn’t mentioned in forums because it could be the rival to an “industrial ” power supply. A 5 to 12V switching converter provides power for a small fan and the raspberry PI uses PWM to control the speed of the fan in response to the temperature of the system. All the schematics and software are available on Github here https: I was initially using Welwyn wire power resistors but had lots of problems with the readings wandering as the resistor heated up.

Datashert settable output voltage. Tom Biskupic 26 March at Large heat-sinks Temperature controlled fan Use of MOSFETs as the pass element and pre-regulator switching element to reduce the dropout voltage of the regulator.

Irfl044n is a small overshoot when the voltage is set or when it comes out of current limit. Three isolated output channels.

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Of course I could buy one but given I an am using this supply to learn about electronics it seemed a perfect opportunity to build one! There is lots more that could be done here. This makes the time between making a change and the change occurring relatively long. The specs I ended up with were: This gave the additional voltage I needed without much hassle. More than likely satasheet would mean a custom transformer so instead I plan to use three off-the-shelf torroidal transformers.


Irfo044n Raspberry Pi controls the mains supply to the transformers using some solid state relays.

IRFPN Datasheet Power MOSFET pdf data sheet FREE from

The Raspberry Pi cannot be powered off but must be allowed to shutdown gracefully. Bigger boards cost more and will take more debugging time.

In addition this circuit switches in a resistor temporarily to reduce the in-rush created by the transformers and then a second SSR short circuits the limiting resistor. Even show cumulative amount of energy consumed by the driven circuit.

Rather than muck around with designing a custom front panel I decided just to use a nice big high-res touch screen. Transformer Tap Switching, Gate Bias supply and auxiliary supplies. So i was wondering if the schematics made with kicad were available to download. Thanks again for those well made projects.

Each channels communicates with the control interface via isolated USB each channel has an on-board micro-controller and isolated USB interface. In March I started designing a precision, low noise lab power supply.