Electronic and Inverter Transformers: Theory and Applications
Electronic and inverter transformers are crucial components in power conversion systems, enabling the transformation of direct current (DC) to alternating current (AC) efficiently. At Gowanda Electronics, we provide high-quality transformers designed for various electronic applications, ensuring reliability and performance.
Understanding Electronic Transformer and Inverter Transformer Theory
Overview of Inverter Transformers
Inverter transformers are used in power conversion applications to transform DC power into AC power. They are essential in systems where electrical isolation and efficient energy transfer are required.
- Voltage-Fed Inverters: These are more common than current-fed inverters, using electronic transformers to switch the polarity of the DC power source across its load.
- Switching Mechanisms: Early inverters used mechanical switches, later replaced by vacuum tubes, and now predominantly use semiconductor-based switches like diodes, transistors, FETs, and SCRs.
Basic Inverter Circuit Design
- Simple Inverter Circuit:
- Utilizes switches that alternate on and off to produce square wave pulses.
- The duty cycle controls the average load voltage relative to the source voltage.
- Advanced Inverter Circuit:
- Incorporates capacitors and additional switches to regulate load voltage.
- Uses electronic transformers with secondary windings for push-pull action, allowing for bipolar utilization of the core.
Bipolar vs. Unipolar Applications
- Bipolar Utilization: Alternates magnetic field polarity, allowing for smaller core sizes due to larger flux density changes.
- Unipolar Utilization: Maintains magnetic flux in one direction, suitable for specific applications like pulse transformers.
Types of Inverter Transformers
- Push-Pull Forward Converter Circuits:
- Utilize center-tap connections for efficient switching with fewer components.
- Provide tight output voltage regulation with minimal ripple.
- Saturable Transformers:
- Used in Royer Inverter Circuits for automatic transistor switching via voltage spikes during saturation.
Applications of Electronic and Inverter Transformers
- Power Supply Units
- Telecommunications
- Renewable Energy Systems
- Industrial Automation
Custom Solutions from Gowanda Electronics
At Gowanda Electronics, we offer custom-designed electronic and inverter transformers tailored to meet specific application requirements. Our extensive capabilities in design, development, production, and testing ensure that we deliver solutions that enhance performance and reliability.
For inquiries about custom products or to discuss your specific needs, please contact us. Our dedicated team is ready to assist you with application-specific designs that meet your unique requirements.