Lawyer-style converter

One of the DC-DC converters invented by Dr. Royer. There is an inverter circuit for cold cathode tubes that resembles it in circuit diagram and is easy to confuse with, but it is a collector resonant circuit and operates on a different principle. It uses a large transformer to saturate the core and perform phase inversion operations, which results in significant hysteresis loss, making it disadvantageous due to the inability to raise the oscillation frequency. Additionally, the pulsed high current that flows during inversion causes heat generation and large losses, leading to poor conversion efficiency. On the other hand, compared to today's latest DC-DC circuits, it has the advantage of enabling DC-DC conversion with a simple circuit configuration.