DEVICE WHICH CONTROLS CURRENT IN LOAD WITH COUNTER- ELECTROMOTIVE FORCE Russian patent published in 1997 - IPC

FIELD: electric engineering, in particular, control of direct current electric motors and controlled power supplies. SUBSTANCE: device has serial circuit of power supply 1, filter 2 and autonomous inverter 3 which internal load 4 is connected to additional winding 5 of pulse transformer 6. Synchronization unit 7 is connected to output of control unit 8 which controls synchronization unit and autonomous inverter. It is also connected to first power terminal of two-direction controlled power gate 9. In addition device has serial circuit of two-direction controlled power gate 10, load 11 and current detector 12. Commutator 13 is connected to output of pulse oscillator 14 which output is connected to commutator 15. In addition device has two additional power supplies 16 and 17. EFFECT: increased efficiency. 4 dwg