A comparison between some proposed boost topologies and conventional topologies in discontinuous inductor current mode

A new modified boost power converter topology with an LC branch in parallel with the diode is introduced. The new boost topology has continuous and ripple-free input current. Its properties are discussed and found to be the same as the conventional boost topology operating in the discontinuous inductor current mode. It is also compared to another modified boost power converter which can achieve continuous and ripple free input current. Compared to the traditional power converters, several advantages are identified. The predicted theory is verified experimentally.