Видео

thanks

His explanation is better than my university professor. Thank you !!

Why isn't youtube promoting great vids like this? It took me a while to stumble on it.

Superb explanation

Why all these scr circuits always show 230VAC and not one with 120VAC which is the common voltage in U.S. household. If I was watching other countries video, that is understandable.

Good explain

Thanks, sir

good explanation ,thanks man

Can we use this approach to convert AC to DC by chopping only the lower voltage part of the sine wave cycle (using phase angle control first then the diode bridge later and a large capacitor to stabilised the DC output)?

Do you have anymore videos on Motor control?

thx for this info

k these are solid state dimmers right? lol

Thanks sir, if the firing angle equal 180 how can I draw the waveform of output current and voltage.

How do you control the firing angle ?

I love that

finally someone i can understand

well explained

Formula to find firing angle

Thanks a bunch!

nice

Awesome

good day can you send me this data sheet.

Can we fire scr at 0 degree

can you please upload the presentations.

Great explanation very clear to understand.

Sir This circuit is applicable for smooth start of single phase induction motor.....

Please check this link I think some parts of the video is yours. He destroy your job. ruclips.net/video/FvmAPjNrmo4/видео.html

How much voltage output from scr ?

What about adding a choke to the VFD output? www.coolblue-mhw.com/coolblue-cores/coolblue-video/

6:05 LOL

top explanation. bravo!

awesome explanation

If I were to control the Eddy Current from the inductance coils that you cover in the last part of this video, could I use a Variac and rectify the voltage to get a good control over the field of the coils? I am dealing with 4 big coils connected in series which has a max rating of 250vDC 30A. I figure if I use a variac and rectify the voltage, I can have good analog control over the coils field and strengthen the braking force of the Eddy current it produces to brake a flywheel that is connected to motors for testing HP output. Thank for the video, I am one step closer to figuring this out! Andrew

Thank you for your explanation, keep up the good work

How can you set up an SCR to trigger on more than 90 degrees of phase? As I understand this, you use the potentiometer to decrease the gate current relative to the AC voltage. If you set up high resistance on potentiometer, then you need more voltage to get to the switching current and because more voltage happens later in phase, thus you can switch on specific phase angle. But that should work only when the voltage slope is positive, meaning only on phase angles below 90 degrees, am I right? You cannot switch on the same voltage on the decreasing slope (angle 90 to 180), because the resistor doesn't care about the slope or angle, it only cares about the voltage and all the voltages in angle 90 to 180 happened already earlier in phase.

Hello, Thank you for the video! I have a questions Does 2 thyristors and 2 sinus power supplies create a half wave or a full wave?

good video very easy to understand and clear