Relationships among classes of self-oscillating transistor parallel inverters

A procedure for classifying dc-to-square wave two-transistor parallel inverters which are widely used in power-conditioning applications has been presented. This classification scheme is based on the idea of reducing the inverters to equivalent RLC networks. They are then grouped with other inverters which have the same basic equivalent circuit. The distinction between classes is based on such features as the topology of the equivalent circuits; i.e., series or parallel combinations; the number and type of nonlinear elements involved; and the type of resistive characteristic derived; i.e., voltage controlled or current controlled.