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Post as a guest Name. You could measure it, too. Dec 242: The problem is that the GPIO pin aren’t powerful enough to drive the fan plus it would be dangerous for the Dxtasheet itself. As I said in the title, I’m looking for a transistor that I could use for switching a Raspberry Pi 5v.

So I’m using a small fan that works perfectly, but is quite noisy when at full load. Part and Inventory Search. Anyone can give me a datasheet about 22n4392 DAC? Here is the circuit I made extremely simple, maybe too much: You buy another one. HerrCrazi If you use the first circuit, the values are both important.

There is another worry to deal with. Input port and input output port declaration in top module 2. If you want to search a similar part from the parts available at your local shop, compare Vgs off and Idss.

What is the newest pwm chip and where to find its datasheet? Hierarchical block is unconnected 3. HerrCrazi Well, that makes things lots easier. This provides two equations and two unknowns the resistors. You’ll need a a lot of base current, so use a base resistor of Heat sinks, Part 2: Sign up using Facebook.


But it would help to know what you think you follow, already, because that could save me time. Synthesized tuning, Part 2: CMOS Technology file 1.

How do you get an MCU design to market quickly? So this is one of those compromise decisions that are sometimes required to balance competing issues. I’m still trying to understand the maths you did.

Once again, thanks a lot for you help! Must the values of these resistors be exactly as you said, or would it be possible to use only one of them? There isn’t much room into the case, so the smaller the circuit will be, the better it will be.

Often, it’s lower than that, but sometimes it may be a little higher. While there are NPN transistors that can work for this relatively low current fan, generally load switching is best done using an NFET. Here’s the simple circuit to try: PV charger battery circuit 4.

So I need to have a transistor acting as a switch controlling the fan power.

2N National Semiconductor

It’s max collector current is mA, so you are pushing that spec a bit. Distorted Sine output from Transformer 8. The transistors I have several pieces in each case: Sign up using Email and Password. Mouser have dealers in about 60 countries all over the world.


Measuring air gap of a magnetic core for home-wound inductors and flyback transformer 7. Can the voltage measured in the CRO be converted to its equivalent power?

(PDF) 2N4392 Datasheet download

I think at that point I understood almost everything you explained me. Home Questions Tags Users Unanswered. I can even use PWM to control the speed of the fan. But I think it will work. Post Your Answer Discard By clicking “Post Your Answer”, you acknowledge that you have read our updated terms of serviceprivacy policy and cookie policyand that your continued use of the website is subject to these policies. Sign up or log in Sign up using Google. So it probably will be fine, as shown.

Equating complex number interms of the other 6. Should I mount it exactly like a standard NPN transistor? Thanks in advance for your help! However, before atempting to make anything definitive, I would appreciate if you could tell me if I did everything correctly ie,i’m not going to damage my Pi.

Turn on power triac – proposed circuit analysis 0. So that’s the number I’m going with. ModelSim – How to force a struct type written in SystemVerilog? Can you explain me a bit more why the transistors I mentionned in OP aren’t best for that use?