Abstract: A versatile current source inverter power supply for an ozonator in which a gating control circuit controls the gating of a thyristor bridge inverter power supply in a manner in which the output current to the ozonator is controlled and regulated. The current source inverter power supply circuit includes a DC/AC thyristor bridge inverter circuit coupled at its input terminals to a direct current power source and at its output terminals to an electrical network which includes the capacitative ozonator load. The thyristor bridge inverter includes a first pair of thyristors and diodes coupled to conduct current in a first direction through the electrical network, and a second pair of thyristors and diodes coupled to conduct current in a second, opposite direction through the electrical network. The electrical network includes a step up high voltage transformer, with its primary winding coupled to the thyristor bridge inverter and its secondary winding coupled to the ozonator load.

Abstract: A versatile pulsed voltage resonant inverter power supply for an ozonator which results in the efficient operation thereof. A resonant inverter ozonator power supply comprises a DC power source and a DC/AC thyristor inverter coupled at its outputs to the primary winding of a high voltage transformer. The ozonator load is connected across the secondary winding of transformer and provides a discharge path during each high frequency cycle. First and second embodiments of control circuits are disclosed for generating gating control signals for the thyristors. The switching frequency at which the thyristors are triggered is selected to be lower than the circuit resonant frequency in order that the load voltage supplied by the inverter is substantially pulsed, and a pulse burst modulation mode is also disclosed.

Abstract: A solid state thyristor bridge inverter power supply for an ozonator in which the width and the amplitude of the ozonator current can be controlled and the ozonator voltage can be selectively reset. The power supply circuit includes a diode bridge rectifier for converting a commercial AC power main into a direct current power source which is coupled to a current source DC/AC inverter through a inductor and a current detecting circuit. A current amplitude control circuit controls the output current of the DC power source by comparing the output of the detecting circuit with a reference set point. Logic circuits are provided for controlling the frequency and the width of current pulses applied to the ozonator.

Abstract: A versatile pulsed voltage resonant inverter power supply for an ozonator which results in the efficient operation thereof. A resonant inverter ozonator power supply comprises a DC power source and a DC/AC thyristor inverter coupled at its outputs to the primary winding of a high voltage transformer. The ozonator load is connected across the secondary winding of transformer and provides a discharge path during each high frequency cycle. First and second embodiments of control circuits are disclosed for generating gating control signals for the thyristors. The switching frequency at which the thyristors are triggered is selected to be lower than the circuit resonant frequency in order that the load voltage supplied by the inverter is substantially pulsed, and a pulse burst modulation mode is also disclosed.