This video was perfect for me. I was looking at a TDA7375 and noticed it said, "No Boucherot cells" in the features list at the beginning of the datasheet. I'm a rookie at this so of course I googled it and your video came up. Thanks for the info. It was very helpful.
Hi Eddy, thanks for explaining the Zobel network/ Boucherot cell. You've mentioned in the video that there is a follow up on the parallel resistor & coil. Has this video posted? Looking forward for that very much!
errm can I put a zobel between my valve output and the transformers? and is there a way I can bias the circuit to match/counter rising frequency response in my full range driver? obviously I am not an engineer but I like your explanation style (y)
Great question! It might be possible - I'll have to look into this and get back to you. What I can say is that the transformer is meant to do a similar function - and that is to match the impedance of one stage to the next.
THANK YOU FOR EXPLAINING HOW ZOBEL NETWORKS WORK.IT SEEMS LIKE YOU ARE TRYING BALANCE THE THE REACTANCES OUT SO THEY CANCEL ONE ANOTHER OUT LIKE RESONANT CIRCUIT.HOW DOES IT EFFECT THE SOUND QUALITY?DOES SOUND BETTER AT ALL FREQUENCIES GENERALLY SPEAKING?
Yes, the reactances balance out and the resistors act as both dampeners and as a fixed resistance value - so the end all is that the input looks like a resistor across a wide frequency band. Good idea to do this video. The follow up will have even more info. It should improve sound quality and I'll go more into that.
You're explaining this better than my lecturer who is a professor of this! Thanks keep it up!
Adam Hughes Welcome! And thank you for the nice feedback!
Just curious, which module was it?
Was this a question for Adam about his coursework?
@@KissAnalog Yes. I took some university courses, but, I never encounter Zobel network.
Afdhal Atiff Tan Amin Husaini Tan I don’t think this came up when I went to school either - but that was so long ago I probably wouldn’t remember;)
This video was perfect for me. I was looking at a TDA7375 and noticed it said, "No Boucherot cells" in the features list at the beginning of the datasheet. I'm a rookie at this so of course I googled it and your video came up. Thanks for the info. It was very helpful.
CERG LABS That’s awesome! I’m glad it helped!
Great little explanation. I know they are important. I've never understood why.
Thanks so much! I really need to do a follow up on this;) Thanks for reminding me;)
This is a great subject! I never heard of a Zobel network before, but it is very interesting to learn about.
Paul Nichols Thanks! I have a follow up I need to finish...
Hi Eddy, thanks for explaining the Zobel network/ Boucherot cell. You've mentioned in the video that there is a follow up on the parallel resistor & coil. Has this video posted? Looking forward for that very much!
Thanks for reminding me about this! I will do this follow up very soon, and show how to design one.
Thank you so much!
You bet! I will do a follow up soon...
Could you explain about different type of Amplifiers
You bet! I know others have done this but maybe my spin will be different;)
Hello, can i use your zobel network for my commercial amplifier?
You bet - if it works for you;)
@@KissAnalog very thanks
errm can I put a zobel between my valve output and the transformers? and is there a way I can bias the circuit to match/counter rising frequency response in my full range driver? obviously I am not an engineer but I like your explanation style (y)
Great question! It might be possible - I'll have to look into this and get back to you. What I can say is that the transformer is meant to do a similar function - and that is to match the impedance of one stage to the next.
THANK YOU FOR EXPLAINING HOW ZOBEL NETWORKS WORK.IT SEEMS LIKE YOU ARE TRYING BALANCE THE THE REACTANCES OUT SO THEY CANCEL ONE ANOTHER OUT LIKE RESONANT CIRCUIT.HOW DOES IT EFFECT THE SOUND QUALITY?DOES SOUND BETTER AT ALL FREQUENCIES GENERALLY SPEAKING?
Yes, the reactances balance out and the resistors act as both dampeners and as a fixed resistance value - so the end all is that the input looks like a resistor across a wide frequency band. Good idea to do this video. The follow up will have even more info. It should improve sound quality and I'll go more into that.
WOULD YOU EXPLAIN OR,DO A LECTURE ON WHITE NOISE AND,PINK NOISE
That is an excellent idea. I'll do it!
Without Zobel, Impedance Rises as frequency rises. With a Zobel, Impedance Remains Consistently *FLAT* even as the Frequency Rises!!!
Thanks for the great feedback! I hope to do some more analysis and experimentation to show soon;)