摘要 |
The device has at least one position transducer wheel (1) on the crankshaft, two Hall cells, a differential amplifier (21), at least one filter device (22,23), especially a low pass filter with a resistance unit in an output line of the of the amplifier and a capacitor unit after the resistance unit and grounded, a Schmitt trigger (30) and an output transistor (31). The filter device has an at least partly variable resistance unit. AN Independent claim is also included for the following: a filter, especially a low-pass filter.
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