DIRECT CURRENT LOAD POWER SUPPLY METHOD AND DEVICES FOR REALISATION THEREOF Russian patent published in 2009 - IPC H02H1/00 H02M7/00 

FIELD: power engineering.

SUBSTANCE: invention can be used in power engineering, namely in devices for controlling high-voltage electric equipment parametres, including overvoltage protective devices for electric networks. Method of DC load power supply from AC electric power supply involves use of voltage divider. Resistor is made as potentiometer-type voltage divider, and voltage relieved therefrom is divided in two by again introduced capacitor voltage divider. Power supply of devices is performed by converting small loss currents of electric equipment itself. This excludes the possibility of using power supplies of control devices, which are replaced from time to time, e.g. galvanic cells, accumulators, etc. Into loss currents circuit there introduced is reactive (capacitor or inductive) or active voltage divider, there performed is rectification of drops of voltages created on those cells with radiation rectifiers, and charge with rectified current of storage capacitor whereto there periodically connected and supplied with power are control devices.

EFFECT: improving technical and economic specific power indices.

4 cl, 8 dwg