发明名称 |
Circuit for producing pulses indicative of speed from a rotary generator without timing shift |
摘要 |
The Schmitt trigger threshold switch which produces rectangular waves in response to the output of a rotary ignition timing generator has a variable bias applied to its switch-in threshold which is proportional to the amplitude of the generator output, while the switch-out threshold remains fixed at or near zero voltage. The bias, which may be developed by a peak detector, prevents inherent ignition timing shift as the generator turns faster. The Schmitt trigger utilizes an inverting comparator so that a "lowest-wins" circuit can be used for applying stabilizing negative feedback or bias to the comparator. The bias provides immunity to disturbing voltages which increase with signal amplitude.
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申请公布号 |
US4487059(A) |
申请公布日期 |
1984.12.11 |
申请号 |
US19830504474 |
申请日期 |
1983.06.15 |
申请人 |
ROBERT BOSCH GMBH |
发明人 |
FISCHER, WERNER;KNISS, HELMUT;LOCHER, JOHANNES |
分类号 |
F02P5/155;G01P3/48;(IPC1-7):G01M15/00 |
主分类号 |
F02P5/155 |
代理机构 |
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代理人 |
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地址 |
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