Thank you for the very thorough, basic explanation of how these work. I like how slowly you talk when explaining, it gives me time to soak up what you're saying.
i dont mean to be so off topic but does anybody know of a tool to log back into an instagram account? I was stupid lost my password. I appreciate any tricks you can offer me
@Morgan Max thanks for your reply. I got to the site thru google and I'm waiting for the hacking stuff now. Looks like it's gonna take quite some time so I will reply here later with my results.
Does an SCR therefore behave similarly to a triode vacuum tube, where, instead of a gate controlling the flow, there is a GRID controlling electron flow?
An SCR is ON/OFF device. The triode grid controls the electron flow to the plate. Here is a video that may help. Triode Tube Amplification Visual Demo ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-4FkD0LRiu7A.html
Thanks again Rick for the wonderful demonstration SCRs and how they function. Well done! Have a Merry Christmas and a Very Happy New Year to you and your family! from; Tom and his family
Have you ever worked with the old Ford Lincoln Mercury Sequential turn signals? After 1969 they started using SCR's in the sequencer box, I am having a hard time finding the wiring... I think the "flasher"/Large Cap in turn signal circuit creates a switched DC, they use to trigger the SCR, do you have any experience with that use? Just basic theory of triggering with switched DC would help...
Rick, Thanks. I agree another great video. My question is the same as Swarf Rat and maybe some others. The two scr's together looks like a triac. Is this how a triac works? I'll check your other video's. You may already have one on triacs.
Hi Rick. Another Fantastic Video. I was wondering if the current draw increased with both side connected ?. Thank you for sharing and Happy Holiday"s to you and yours. Warm regards. Bobby
I am using a C228B2 as an example. Download the datasheet pdf. First thing is you have to know the voltage you have that is going to be used to drive the gate. Looking at the data sheet I would use MAX 40 ma and MAX 2.5, must not exceed this. MIN gate voltage to drive the gate is 0.2 volts. Now use Ohms Law to calculate the ohms that well not exceed MAX but a little over MIN gate voltage. datasheetspdf.com/pdf-file/1128942/Motorola/C228B/1
am i right in saying that this diagram is basically converting A/C in to D/C when both scr's are switched on thus using the full wave on the oscilloscope. great job once more.
Kevin Brain The circuit is controlling AC. One SCR is controlling one half cycle of AC and the other SCR is controlling the other half of the AC. Our another words one SCR is controlling the positive cycle of AC and the other SCR is controlling the negative cycle of AC. You might want to watch another video of mine called “Duty Cycle, Light Dimmer Demo”
Thank you again sir for your so fast response.. Sir I wanted to know where can i find different types of SCR IC's avaible so that through their datasheet i can know which i require.. i.e., i just want to know from u what r the different types of SCR IC's avaible i know how they work and stuff...thank u sir....
Akhilesh Belore I found pages of SCR's on Mouser. Just click on NEXT for another page. www.mouser.com/Semiconductors/Discrete-Semiconductors/Thyristors/SCRs/_/N-ax244
The output of this amplifier is AC. It's not as pretty as I would like because I'm using diodes as a load. MOSFET Push Pull Amplifier Visual Demo ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE--6N7l1dnk6s.html
@@arthurmead5341 Transformer Basic Parts & Function ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-q3YhbugYjJY.html Transformers, a few basics ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-UvHCQswnjEg.html
@@visionofwellboyofficial An SCR requires a pulse on the gate to turn it on. And revers polarity on the cathode and anode to turn it off. Gates, depending on the gate, is on with a signal and off when the signal is gone, or visa versa.
Hello Dear Sir, I am having a difficult time understanding a DIY design for a CDI for my motorized bicycle. There is no trigger used with the magneto. Here is the diagram motorbicycling.com/attachment.php?attachmentid=37422&d=1308870564 The circuit uses an SCR. I would love to know how the circuit works. Thanks for all of your excellent tutorials. sean
I would need more in formation. This is just part of the circuit. Can you supply the manufacturer and part number of the CDI? And the motor manufacturer and part number? If I can get the manufacturer information from the manufacturer I'll try and make a video.
AllAmericanFiveRadio The blue wire comes from the magneto. The black wire goes to ground. The green wire goes to the ignition coil and from the ignition coil to the spark plug. This is the entire circuit. All of this information comes from the thread at motorbicycling.com "Roll Your own CDI" Here is the link to the page motorbicycling.com/showthread.php?t=28439 The meat is from page 3 to page 5. poroldchap has a video on a similar ignition system called "home made cdi for outboard"
