Hi, I wonder if you can connect more resistors, transistors, or similar things so that a higher current can flow through them Or if they can be connected in parallel to make it work

Hi, His question is very vague. My first answer would be: Yes. But if I detail your need better, maybe I can answer differently. Suggest that before posting, read the following topic. [image] How to get the best out of this forum IDE 1.x See also FAQ - Arduino Forum for general rules on forum behaviour and etiquette. Hello, Welcome to the Arduino Forum. This guide explains how to get the best out of this forum. Please read and follow the instructions below. Being new here you might think this is having rules for the sake of rules, but that is not the case. If you don’t follow the guidelines all that happens is there is a long exchange of posts while we try to get you to tell us what we need in order to help you, which is fru… RV mineirin

GOOGLE : Electronics 101 These are fundimental concepts of electronics, you should really read up on the subject(s) rather than asking in a forum like this. While a basic answer COULD be yes, it could also be no, depending on the application.

Resistors and some other passive components can be connected in parallel. Semiconductor components such as transistors, LEDs, rectifier diodes, etc., not so easily, as other components are usually required to balance the current flows.

[image] skilledbago07: you can connect more resistors, transistors, or similar things so that a higher current can flow through them Resistors yes. Transistors no. FETs yes, LEDs no. Diodes no.

[image] Grumpy_Mike: Resistors yes. Transistors no. FETs yes, LEDs no. Diodes no. Those 'no's become 'yes' if additional components/circuitry are added, as @anon94801460 says.

[image] SteveThackery: Those 'no's become 'yes' if additional components/circuitry are added, No they don’t. I have been on many projects in industry where trying to parallel up transistors has been tried and it has always failed. You are fighting physics and physics always wins.

[image] Grumpy_Mike: I have been on many projects in industry where trying to parallel up transistors has been tried and it has always failed. Not that many, evidently. It's not unusual in power amplifiers: http://education.lenardaudio.com/en/12_amps_5.html "Some large power amplifiers use many parallel output transistors"

[image] SteveThackery: Some large power amplifiers use many parallel output transistors" Which I maintain is a big mistake. There is absolutely no need to do this. You can get more stable results using a bigger single FET or indeed paralleling FETs where physics work for you. And anyway it was probably just two transistors they tried to parallel up. Is this a case of audiophiles being silly like the gold plated mains connectors? But the bigger reason is that you do not advise a beginners that this is in any way a desirable thing to do, it is a very bad thing to do from an educational point. Just look at the way the question was asked. I know engineers are very competitive and they will turn back summersaults through rings to come up with totally obscure situations that prove they are right and some one else is wrong. Don’t fall into that trap. Keep the advice here on this forum good and practical and relevant.

[image] Grumpy_Mike: Keep the advice here on this forum good and practical and relevant. And avoid sweeping generalisations unless flagged as such. :wink:

[image] Grumpy_Mike: Transistors no. FETs yes FET is not a transistor? You don't want to confuse beginners and use wrong terminology. Funny. Even BJTs may be paralleled if you use a small resistor in the emitter. I did not need to do this but AFAIK it is universally accepted this is a viable solution when you need to use more BJTs in parallel - i.e. for heat dissipation reasons. There are good reasons why this should work, no "fighting physics". Who knows what you did wrong that your designs did not work. [image] Grumpy_Mike: LEDs no Small LEDs may be paralleled even without current limiting resistor. Example are all the wedding/Christmas LED strings sold on eBay. Again there are good reasons for this to work - you don't care if one LED takes 20% more current than some other, no one will notice. [image]

Transistors or resistors in parallel

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ruilviana May 14, 2021, 2:31pm 2

Hi,
His question is very vague.
My first answer would be: Yes.
But if I detail your need better, maybe I can answer differently.
Suggest that before posting, read the following topic.

RV mineirin

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Transistors or resistors in parallel

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