Datasheet

NANJING AH ELECTRONIC WG Series zero power consumption sensor datasheet
NPN triode, one PNP triode, and several resistance-capacitances matched with it. The shaping circuit
can transform a series of positive and negative bell shaped pulses of sensors into regular rectangle
high-low level signals. If the sensor outputs positive pulse, and NPN collector-modulation will outputs
a rectangle low level signal (please note that it’s not negative pulse), and PNP doesn’t output signal;
in reverse, if the sensor outputs negative pulse, then the PNP collector-modulation will output a rectangle
high level signal, but NPN doesn’t output signal. Both amplitudes of High –low level are equal to supply
voltage Vcc, the level widths are 20～30μS. The level signals being shaped can be convenient to be
collected by the subsequent digital circuit.
Shaping Circuit and its input and output waveform
Software design
In order to valid prevent all kind of possible interference, when programming the single chip
software, should pay attention to the following points: a) to separately collect the signals of the
two output terminals on the shaping circuit on the two input terminals of the single chip; b) within
100μS whenever collecting one high level or low level signal, the single chip shouldn't continue
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