Function Generator Tutorial in HD

Afroman shows you the basics of function generators AKA signal generators. An LED dimmer circuit example is given. Don't forget to vote 5!

Category:

Science & Technology

Tags:

• electronics
• function
• generator
• signal
• circuit
• LED
• dimming
• PWM

[darkerthebetter]

So if you used a scope probe lead from the generator, how did you connect it to the scope in the vid, did you have a similar probe from that and just join them at their tips ? sorry if this is silly to some but im learning, and its better to ask ! :)

[Afrotechmods]

@darkerthebetter Yeah tip to tip and ground to ground for observing waveforms. This assumes a 1X probe is being used.

[orbiter8]

Hi Afro.. Isn't it the case that our eyes actually stop seeing the flashing effect of light's etc at anything beyond about 45-50Hz? In the video you mention 1000Hz.

Not trying to nit-pick or anything afro as I find you're videos great, & helpful too. I'm just wondering what you're referring to here in case I'm missing something.

Regards

orb

[Afrotechmods]

@orbiter8 If you move the LEDs around you can clearly see 50Hz LEDs blinking on and off in a persistence of vision trail. Around 1kHz it looks like a continuous stream of light even if you are moving the LEDs around pretty quick.

[RodBeauvex]

If you connected a small speaker like those you used to find in PC cases directly to the terminals you hooked the probe to, would you hear a tone?

[Afrotechmods]

Yup! I do that all the time! It's like playing Atari 2600

[busybjorn]

Compared to numerous pages of text describing the function generator this short clip explains it all in just 2:27m.

+5 & subscribed.

[tangocukedi1]

How do you give it a negative amplitude?

[alvastornado]

Thank you for inspiring videos in the magic world of electronics! have a question here sir if i may ask....i have connected the FG probe to a npn transistor to pulse control an higher voltage dc circuit, but can i ground the probe to the negative terminal of the high voltage dc??.. or do i need to use a resistor?..

[acadienvid]

@Afrotechmods because of you, I'm back to my old hobby. Thanks ! I was getting tired of programming I needed something else, electronic is what I was looking for but wasn't able to find good video, yours are perfect for me. Continue your good work!

[sent143fy]

your video is like one stone hit 4 birds, your video is funny, educational, well explained, in detail and complete. what can i say more! thank you very much.

[hnn124]

@afrotechmods Nice videos afro. Got myself a function generator n' oscilliscope recently to do my own labs at home than at school. and i find your videos very useful. Thanks!!

[udiweizman]

cheers dude :)

[orbiter8]

@Afrotechmods Ah yes, I just did that & see now what you're referring to. Thank you for replying.

Regards

orb