A Self-Oscillating Bidirectional Buck Boost Converter Circuit for Arbitrary Unstable and Unpredictable Voltage Sources

This paper proposes a simple self-oscillating bidirectional buck boost converter circuit design for arbitrary unstable and unpredictable input and output voltage sources. It has built-in abilities to generate switching signals by itself and does not use any integrated circuits. It also can automatically stop itself when over voltage occurs. Both the input and output voltage sources are grounded and isolated from each other.