发明名称 FLOW RATE CONTROL OSCILLATOR CIRCUIT FOR SHOPPER CONTROL
摘要 PURPOSE:To control flow rate and frequency simultaneously through such processes as combining an intergrator with a level detector characterized in it hysteresis to detect the output level of the integrator, forcing the output signal to excute positive feedback to the integrator to start subsequent self oscillation and changing the input into the integrator.
申请公布号 JPS545524(A) 申请公布日期 1979.01.17
申请号 JP19770069903 申请日期 1977.06.15
申请人 HITACHI LTD 发明人 MARUMOTO KATSUJI;OOMAE TSUTOMU
分类号 H02M3/135;H02M3/155;H02P7/29 主分类号 H02M3/135
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