Suppressing radio frequency emissions

摘要

PCT No. PCT/GB95/00442 Sec. 371 Date Nov. 1, 1995 Sec. 102(e) Date Nov. 1, 1995 PCT Filed Mar. 2, 1995 PCT Pub. No. WO95/24763 PCT Pub. Date Sep. 14, 1995For the suppression of radio frequency emissions from an electrical drive comprising an electric motor supplied with electrical power via an electronic controller having a high speed switching device which generates high frequency energy, an electrical screen is provided to receive the radio frequency energy and is connected back to the input side of the high speed switching device.