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Related Experiment Videos

Transformer miniaturization for transcutaneous current/voltage pulse applications.

P T Kolen1

  • 1Electrical and Computer Engineering Department, San Diego State University, CA 92182-1090, USA. kolen@kahuna.sdsu.edu

IEEE Transactions on Bio-Medical Engineering
|May 7, 1999
PubMed
Summary

This study presents a design procedure for miniaturized step-up transformers for surface electrode pulse generation. The optimal pulse width (4.5 tau) maximizes the peak-to-average current ratio for improved pulse characteristics.

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Area of Science:

  • Electrical Engineering
  • Biomedical Engineering
  • Electrophysiology

Background:

  • Surface electrode-based systems are crucial for current/voltage pulse generation.
  • Miniaturized transformers are needed for compact pulse generation devices.
  • Optimizing pulse characteristics is essential for effective stimulation.

Purpose of the Study:

  • To present a general design procedure for miniaturized step-up transformers.
  • To optimize transformers for surface electrode-based current/voltage pulse generation.
  • To determine the optimal secondary current pulse width for improved performance.

Main Methods:

  • Developed a design procedure for miniaturized step-up transformers.
  • Calculated optimum turns ratio, primary turns, and secondary turns.

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  • Analyzed transformer/electrode interaction and pulse forming network time constants (tau).
  • Presented two design examples for transformer optimization.

    • Main Results:

    • Identified the optimum secondary current pulse width as 4.5 tau.
    • Demonstrated that this pulse width yields the highest peak-to-average current ratio.
    • Provided a method to calculate optimal transformer parameters based on load and core properties.

    Conclusions:

    • The proposed design procedure enables the creation of optimized miniaturized step-up transformers.
    • The 4.5 tau pulse width criterion is effective for enhancing current pulse quality in electrode systems.
    • This work facilitates the development of more efficient and effective pulse generation devices.