PIR Controlled LED Driver Circuit


Posted on Feb 6, 2014

The circuit is a LED driver which responds to ambient lightas wellas to the presence of any intruder, and varies its illumination accordingly, lets know more. Also I would like to have an ambient sensor to switch on and off and a proximity sensor to switch to full brightness if some one approaches and to switch to half or 30% brightness after 30 s


 PIR Controlled LED Driver Circuit
Click here to download the full size of the above Circuit.

econds. I need this for commercial use. I need asimplecost effective circuit. I have been following the blog and am sure that you know the subject. Please get back to me. " The uppersectionis aproximitysensor circuit. The transistors T2 and T3 are configured as high gainamplifierand is able to sense even minute voltages from the PIR sensor.




Leave Comment

characters left:

New Circuits

.

 


Popular Circuits

LED or bulb flickers
Outband descrambler
Remote rf current readout
Adjustable Analog Timer Circuit
pcb Need help with identifying diodes in a 1970s automotive circuit
H Bridges provide smart power for automotive SoCs
USB As A Power Source
Bank Harmonic Filters Operation in Power Supply System Cases Studies
Isolated two-wire current loop circuit diagram XTR101 ISO100



Top