VIDEO DISPLAY WITH CIRCUIT FOR SUPPRESSION OF UNDESIRED RADIATION FROM CATHODE-RAY TUBE Russian patent published in 2000 - IPC

FIELD: radio engineering. SUBSTANCE: display has circuit for decreasing or suppression of radiation, which is emitted from front or back side of cathode-ray tube. It has transformer for induction of opposite-polarity deviation voltage in its secondary winding according deviation voltage signal, which is applied to its primary winding through deviation coil in response to operation of switching transistor. In addition device has wire, which turns embrace cathode-ray tube. Turn is connected to opposite-polarity deviation voltage from transformer. Wire has at least one turn, so that undesired radiation, which is output by cathode-ray tube and is caused by deviation voltage applied to anode of cathode-ray tube, is compensated by action of opposite polarity deviation voltage, which is applied to wire. EFFECT: increased functional capabilities. 2 cl, 2 dwg