Gasoline_engine_signal_conditioner

Published:2009/7/24 4:04:00 Author:Jessie | From:SeekIC

Fig. 14-18 This circuit uses an LM2907 to condition the signals between a gasoline engine and a tachometer. The simple circuit can be set for any number of cylinders by linking the appropriate timing resistor, as shown. The 500-Ω calibration pot is set so that 6000 rpm produces a full-scale indication on a 10-mA meter movement．the zener and resistor ale added as a safety precaution against transients. National Semicondutor Applications Handbook, 1991. p 429 .



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