Doppler automatic electronic switch circuit diagram

Published:2014/3/2 21:51:00 Author:lynne | Keyword: Doppler automatic electronic switch circuit diagram, | From:SeekIC

Resistor R7 is a weak positive feedback resistor every level, so that the high level once the pin ⑧, ⑧ pin so that the high voltage input of the voltage-inverting IC1d rises, causing the pin voltage rises IC1A ③, ① pin voltage rises , ⑦ pin voltage becomes lower, increasing the pulse width of the negative pin ⑦, so C6 sufficient charging time, the lamp is delayed to ensure consistency off.



Reprinted Url Of This Article:
http://www.seekic.com/circuit_diagram/Control_Circuit/Doppler_automatic_electronic_switch_circuit_diagram.html

Print this Page | Comments | Reading(3)