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专利名称:Multiple pulse-width multiplier发明人:Felix Blaschke申请号:US06/148141申请日:19800509公开号:US04335444A公开日:19820615
摘要:For forming ##EQU1## in a pulse width multiplier, two input voltages b. sub.i aresummed at the input of an inverter and are added, after each passes through a separateswitch and proportional stage, at the input of a smoothing stage, to the inverter outputsignal. The switches are actuated by switching pulses which are width-modulated inaccordance with the factors c.sub.i. The calculated sum is present at the output of thesmoothing stage. Great accuracy in field-oriented control of rotating- field machines ispossible when vector analyzers and vector rotators designed in this manner are used.
申请人:SIEMENS AKTIENGESELLSCHAFT
代理机构:Kenyon & Kenyon
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