英语三级考试试题专利名称：AC CONVERTER-FED MOTOR
遥控器英文mid autumn发明人：Buglaev, Oleg, Anatolievich,Bryzgalov, Viktor, Alexeevich
申请号：EP08857955.2
tube申请日：20081204
cots公开号：EP2117109B8
公开日：
otato20121010
dockers
专利内容由知识产权出版社提供陨落星辰第1季
摘要：The invention relates to electrical engineering and can be ud, in particular, in electric drives of mechanisms ud in dental equipment. A brushless AC electric motor compris an electromechanical converter (1) with a three-ction (2, 3, 4) winding and a permanent-magnet inductor (5), an inverter (6), a control unit (7) and three comparators (1 (8), 2 (9) and 3 (10)), wherein the terminals of the winding ctions of said electromechanical converter are connected to the 1, 2 and 3 outputs of the inverter (6), respectively, and to the 1 inputs of the 1 (8), 2 (9) and 3 (10) comparators, respectively, said motor additionally comprising an electric motor start-up unit (11); and wherein said control unit (7) is a decoder and compris six optron transmitters (12, 13, 14, 15, 16 and 17) with optical outputs, while the inverter compris six optron receivers (18, 19, 20, 21, 22 and 23), the optical inputs of said receivers being connected by means of optical coupling to corresponding optical outputs of said optron transmitters (12, 13, 14, 15, 16 and 17) of the control unit (7), and wherein the outputs of the 1 (8), the 2 (9) and the 3 (10) comparators are connected to the 1, 2 and 3 inputs of the control unit (7), respectively, while the 7 power input of the inverter (6) is connected to the power source and to the input of the electric motor start-up unit (11), the 1 output of said start-up unit
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defined(11) being connected to the 3 input of the 2 (9) comparator, its 2 output being connected to the 3 input of the 3 (10) comparator, and wherein the 2 inputs of all comparators are interconnected with each other. The prent invention provides an increa of operational reliability and stability of the brushless AC electric motor, as well as reduction of the torque pulsations.
申请人：BUGLAEV OLEG ANATOLIEVICH
地址：RU
国籍：RU
代理机构：Gulde Hengelhaupt Ziebig & Schneider
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