DEVICE FOR PLASMA-ELECTROLYTIC OXIDATION OF METALS AND ALLOYS Russian patent published in 2017 - IPC C25D11/02 C25D19/00 

FIELD: electricity.

SUBSTANCE: device contains a three-phase AC or DC voltage source connected to a three-phase bridge rectifier, which outputs are connected to the filter, the first and second voltage sensors, step-up high-frequency transformer, which secondary winding is connected to the workpiece by one output and to the cathode of the bath with electrolyte by another output, the first current sensor, a computer which controls the microcontroller. It additionally contains a step-down and step-up voltage regulators, the second current sensor, which data output is connected to the fourth input of the microcontroller, the first choke, an active voltage divider and a half-bridge voltage inverter. The power inputs of the step-down regulator are connected to the filter, and the power outputs - one directly and another - via the second current sensor and the first choke - are connected to the power inputs of the step-up regulator, which power outputs are connected to the first voltage sensor, the power inputs of the active voltage divider and half-bridge inverter, and the data inputs of both regulators are connected respectively to the first and second outputs of the driver unit. The active voltage divider generates the anode and cathode voltage amplitudes.

EFFECT: simple device control algorithm and reduction in its size and weight.

1 dwg