Uploaded February 2024 | Updated September 2026, 2 weeks ago

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Testing the NiCd 4.8V battery backup inverter from the 2x 58W fluorescent fixture. What's inside, including the schematic. How does a Royer oscillator work and the voltage waveforms in it on an oscilloscope. Note: This is the resonant version of the Royer oscillator, not the original saturable-core transformer version, so more accurately it should be called a Baxandall oscillator.

The 2x 58W mains power inverter:
youtu.be/dRB9xzjPngY

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