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Induction Heating Cooktop (ZVS Driver): Efficiency Study

Approx. component budget: Rs. 5,000 - 9,000

Objective

Heat a known quantity of water with the cooktop and calculate efficiency for different pan materials and coil designs.

What you will build

A ZVS (Royer) induction heater with a work coil, MOSFETs, a tank capacitor bank, a DC supply and a metal pan with a water load.

Results you can expect

• Heating rate and efficiency for steel
• Aluminium and stainless pans
• Effect of coil turns and pan distance
• MOSFET temperature
• Input power

What you will learn

Resonant converters, induction heating, power measurement and heat transfer from coil to load.

Tools and notes

Oscilloscope, thermometer, power meter, Excel. High-frequency fields and hot MOSFETs, so use heat sinks, keep watches and metal away from the coil, and do not leave it unattended.

Resume points from this project

• Built and tested Induction Heating Cooktop (ZVS Driver): Efficiency Study; objective: heat a known quantity of water with the cooktop and calculate efficiency for different pan materials and coil designs.
• Measured and analysed heating rate and efficiency for steel and aluminium and stainless pans; wrote the report and presented the results in a viva. Add your own numbers: [x].

Replace [x] with your own measured results. Write only what you really did.

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