United reaper full warehouse reminder (2)

Published:2011/7/19 23:16:00 Author:chopper | Keyword: United reaper, full warehouse reminder | From:SeekIC

The principle of circuitThis united reaper full warehouse reminder circuit is formed by the photoelectric detection amplification circuit and the sound and light alarm circuit,which is shown in Figure 4-99.The photoelectric detection amplification circuit is formed by the indicator light HL1,light switche S1,photosensitive resistor and transistor V1. 　The sound and light alarm circuit consists of transistor V2, the relay K, the diode VD, indicator light HL2 and buzzer HA.



Reprinted Url Of This Article:
http://www.seekic.com/circuit_diagram/Control_Circuit/Protection_Circuit/United_reaper_full_warehouse_reminder_2.html

Print this Page | Comments | Reading(3)