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A deeper insight into Differential Amplifiers with high common mode voltage 

Sam Ben-Yaakov
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1 июл 2024

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Комментарии : 31   
@Chris_Grossman
@Chris_Grossman 3 года назад
I had never looked at this topology before. Thank you for the excellent presentation.
@sambenyaakov
@sambenyaakov 3 года назад
Thanks for comment
@eduardinification
@eduardinification 3 года назад
I used T network in a BMS for an UPS Pb battery pack. T network allowed to prevent the battery from discharge through the measurement front end input resistance. Thanks for the video!
@sambenyaakov
@sambenyaakov 3 года назад
Thanks for sharing.
@megfvvd35432
@megfvvd35432 3 года назад
Excellent video!
@sambenyaakov
@sambenyaakov 3 года назад
Thanks
@ats89117
@ats89117 3 года назад
Very nice presentation! The advantages and disadvantages of the first two methods were explained in some detail, while the third method was given, but with less information on performance relative to the first two methods. This is left as an exercise for the (lazy) viewer, which is fine.
@sambenyaakov
@sambenyaakov 3 года назад
You got it. Home work!
@dhanushavvari3356
@dhanushavvari3356 3 года назад
Great!!...Thank you for sharing
@sambenyaakov
@sambenyaakov 3 года назад
👍😊
@frunsebischkek1050
@frunsebischkek1050 3 года назад
If you take the method #3 and turn the star circuit r2, r5, r6 into a triangle circuit, you get the method #2.
@sambenyaakov
@sambenyaakov 3 года назад
HI, Frunse Thank you for the enlightenment. Never thought about that.
@frunsebischkek1050
@frunsebischkek1050 3 года назад
@@sambenyaakov Thank you in turn for your precious work here on RU-vid. It helps a lot of engineers in getting better. People like you make the world a better place.
@justinn771
@justinn771 3 года назад
Second to none!!
@sambenyaakov
@sambenyaakov 3 года назад
Thanks
@Antyelektronika
@Antyelektronika 3 года назад
Hi Prof. Ben-Yaakov. I think that in minute 2:31 in equetion bellow should be (R3+R4) / R3. The missing is "4". If I am wrong please correct me.
@sambenyaakov
@sambenyaakov 3 года назад
You are correct. Thanks for spotting the error and commenting.
@cuchulainkailen
@cuchulainkailen 3 года назад
Sam... another nice lecture, expanding on the old, dusty textbook. 😋😋 Now, if you could circle back to the elaplace based ferrite model? I'm not lazy; I just don't have it in LTSpice.... Or, is it possible by using laplace in the LTSpice B model?
@sambenyaakov
@sambenyaakov 3 года назад
Yes, you can use Laplace in LTspice B models.
@davidaz4933
@davidaz4933 3 года назад
ערוץ מעולה יש לך ידע נרחב
@sambenyaakov
@sambenyaakov 3 года назад
👍
@HBD113
@HBD113 Год назад
Hi sir, In 1:51 min, you are using the ratio needed for the differential amplifier to work as we need, it seems that the ratio should be R2/R1=R4/R3, please correct me if i'm wrong. Thank you for a great lecture again !
@sambenyaakov
@sambenyaakov Год назад
Indeed, this slide has a typo. Thanks for bringing this up.
@NiHaoMike64
@NiHaoMike64 3 года назад
For the battery monitor, wouldn't a microcontroller per cell be cheaper and also handle switching in the balancing circuit?
@sambenyaakov
@sambenyaakov 3 года назад
Not really. You need precision voltage measurement and isolated communication between units.
@JoelLandivar
@JoelLandivar 3 года назад
Hello, Professor. I am currently designing an inverter application. Is it possible that I could discuss some doubts I have with you?
@sambenyaakov
@sambenyaakov 3 года назад
You can write to sby@bgu.ac.il
@sam7901
@sam7901 3 года назад
Sir, why not use an instrumentation amplifier which has inherently good common mode rejection capabilities and is less susceptible to component (resistor) deviations
@sambenyaakov
@sambenyaakov 3 года назад
Hi Srinath, Instrumentation amps are basically a differential amp with buffers. They do not have, inherently, high common mode volt capability. The common mode is generally restricted to the power supply range. CMRR does not imply high Vcm withstanding.
@marcinszajner2924
@marcinszajner2924 3 года назад
Great video!
@sambenyaakov
@sambenyaakov 3 года назад
Thanks!
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