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 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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