Blog Layout

How to wind a transformer for an ultrasonic transducer drive circuit

Husain Shekhani • Jul 20, 2023

  I hosted a webinar on July 19, 2023 on

"How to wind a transformer for an ultrasonic transducer drive circuit"

You can watch the recording on my YouTube Channel here: 

https://youtu.be/7O_J4rfD_QU


Here is a link to the presentation notes.



Topics

In this webinar recording, I explained the theory, purpose, and process of winding a transformer to achieve more power transfer from a ultrasonic driver to you ultrasonic transducer.

I wound a transformer to step up voltage from a 4 Ohm output amplifier to a 100Ohm load, which was a placeholder for an ultrasonic transducer.

I also discussed various practical topics at the end of the presentation.


Video outline:

  • 0:10 Introduction to topic - transformer
  • 0:50 Presentation outline..
  • 2:00 Ultrasonic Advisors consulting
  • 3:00 Where do transformers fit in the drive circuit?
  • 5:20 Why use a transformer?
  • 7:30 Engineering diagram explanation
  • 10:00 Transformer misconceptions
  • 13:30 Voltage drop and optimal impedance for driver
  • 15:50 Step 1 - Choose a core
  • 18:15 Step 2 - Test your amplifier's desired load
  • 21:45 Step 3 - Determine step up ratio based on target load
  • 23:50 Step 5 - Determine primary and secondary winding numbers
  • 26:40 Step 6 - Wind the transformer and test the inductance and the coupling factor
  • 32:10 Testing the final transformer
  • 34:16 Additional practical topics related to amplifier and transformers
  • 44:43 Topics for future webinars


***Announcement***

My next webinar will be on Friday, August 18, 2023 at 11AM EST. I will cover

"Preload measurement circuit for bolt-clamped ultrasonic Langevin transducers”

Here is the link to sign up for the upcoming webinar: https://www.ultrasonicadvisors.com/monthly-ultrasonic-webinar

Follow the link here to learn about my ultrasonic transducer consulting services and prices

Services and Prices

Did you like this post?

Sign up for my email list and receive my free guide to the:

 "Top three reoccurring challenges in ultrasonic transducer development"

    Share by: