Note: Development of a triple resonance pulse transformer based on magnetic core transformer

Area of Science:

• Electrical Engineering
• Pulsed Power Systems
• Electromagnetics

Background:

• Traditional pulse transformers face limitations in achieving high output voltages and fast rise times.
• Optimizing magnetic core transformer design is crucial for advanced pulsed power applications.

Purpose of the Study:

• To develop and investigate a triple resonance pulse transformer based on a magnetic core transformer.
• To achieve high peak output voltages and fast voltage rise times for pulse forming lines.

Main Methods:

• Designed a compact magnetic core pulse transformer with a bi-conical geometry.
• Integrated a tuning capacitor and inductor to form a triple resonance circuit with a pulse forming line (PFL).
• Utilized an irregular coaxial capacitor (70 pF) and an air core cylindrical inductor.

Main Results:

• Achieved a peak output voltage of approximately 530 kV.
• Obtained a voltage rise time of about 790 ns.
• The peak voltage across the PFL was 1.6 times the voltage across the magnetic core transformer.

Conclusions:

• A triple resonance pulse transformer based on a magnetic core transformer is feasible.
• The developed transformer effectively charges the load capacitor using the first peak of the output voltage.
• The innovative design enhances performance for high-voltage pulse generation.