Wednesday, March 27, 2013
Browse »
home»
alarm
»
circuit
»
diagram
»
ldr
»
morning
»
using
»
Morning Alarm Circuit Diagram Using LDR
Description
Circuit showing a morning alarm.Here we have used a switching transistor.When the sun rise up ldr is low resistance so the ldr is conduct and a positive volt coming to the base of the Q1 there for the transistor will switch.This time the buzzer is ON . Adjust the preset control the intensity of light.Manually cut off the power.Are you interested please comment and join this site
Component Required
Resistor 4.7k preset , LDR
Transistor BC 548
Buzzer
Source by : http://www.electronics-circuits.in/2012/01/morning-alarm.html
Morning Alarm Circuit Diagram Using LDR
Circuit showing a morning alarm.Here we have used a switching transistor.When the sun rise up ldr is low resistance so the ldr is conduct and a positive volt coming to the base of the Q1 there for the transistor will switch.This time the buzzer is ON . Adjust the preset control the intensity of light.Manually cut off the power.Are you interested please comment and join this site
Component Required
Resistor 4.7k preset , LDR
Transistor BC 548
Buzzer
Source by : http://www.electronics-circuits.in/2012/01/morning-alarm.html
Subscribe to:
Post Comments (Atom)
No comments:
Post a Comment
Note: Only a member of this blog may post a comment.