"1.5V AA" 3 months continuously night lamp - Electronic Circuits Projects Diagrams Free

TDA2030 · 6th November 2009, 05:00 AM

This circuit is usable as a Night Lamp when a wall mains socket is not available to plug-in an ever running small neon lamp device. In order to ensure minimum battery consumption, one 1.5V cell is used, and a simple voltage doubler drives a pulsating ultra-bright LED: current drawing is less than 500µA.
An optional Photo resistor will switch-off the circuit in daylight or when room lamps illuminate, allowing further current economy.
This device will run for about 3 months continuously on an ordinary AA sized cell or for around 6 months on an alkaline type cell but, adding the Photo resistor circuitry, running time will be doubled or, very likely, triplicated.

circuit and component list link:-
Battery-powered Night Lamp - RED - Page44

I made it but not working can any one help me plzzzzzzzzzz

kchriste · 6th November 2009, 05:08 AM

Don't double post!

TDA2030 · 6th November 2009, 05:20 AM

ohh ok i am so sorry for this double post,i am new for posting,
i am not going to do that again,
n i am so sorry again

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6th November 2009, 05:00 AM	#1
TDA2030	"1.5V AA" 3 months continuously night lamp This circuit is usable as a Night Lamp when a wall mains socket is not available to plug-in an ever running small neon lamp device. In order to ensure minimum battery consumption, one 1.5V cell is used, and a simple voltage doubler drives a pulsating ultra-bright LED: current drawing is less than 500µA. An optional Photo resistor will switch-off the circuit in daylight or when room lamps illuminate, allowing further current economy. This device will run for about 3 months continuously on an ordinary AA sized cell or for around 6 months on an alkaline type cell but, adding the Photo resistor circuitry, running time will be doubled or, very likely, triplicated. circuit and component list link:- Battery-powered Night Lamp - RED - Page44 I made it but not working can any one help me plzzzzzzzzzz

6th November 2009, 05:08 AM	#2
kchriste	Don't double post! __________________ Inside every little problem, is a big problem trying to get out. Last edited by kchriste; 6th November 2009 at 05:09 AM. Reason: :(

6th November 2009, 05:20 AM	#3
TDA2030	ohh ok i am so sorry for this double post,i am new for posting, i am not going to do that again, n i am so sorry again