Capacitor/Clapper Assistance needed!

[letsrelaythat]

Hi All,

I have builit the hand clapper device, and I am running a small bed lamp off it. Its so handy to lie in bed, clap and the lights turn off.. but back to business. 8)

I am living in a shed which has been converted to a room, but the power fluctuations, primarily from the fridge and computer monitor, seem to activate/deactivate the clapper.. I'm assuming its just latching the relay on and off as it uses a flip flop in the circuit diagram.

I was thinking about adding a capacitor to the circuit, to hold a bit of charge for maybe half a second just so that the frigde and computer monitor can turn on without disrupting the lights.

**broken link removed**

BTW, I cut an mains extension cord in half, then used the wires in that for my transformer to get the 9v AC, then used other components to get it to a perfect 5v DC. I haven't used any fuses (don't flame me for this) but I do want to know where to put them, just inline of the blue/brown AC wire??

Also if I hold a mobile phone near the clapper, when it is changing towers or someone is calling/receiving messages the clapper goes crazy.. any ideas on why this could be happening??

Thanks for all your help!

Tim.

 

[chemelec]

I do not Understand about the 5 volts. For What?

But Increase C5 to 470 uF, maybe even Much Higher, to stabilize the supply voltage better.

Cell Phone problem, This is partly a sensitive C-mos circuit. Very sensitive to RF. Shield it inside a Steel Box.

 

[letsrelaythat]

Hmm after looking again its actually 9V not 5v.. sorry.

Also is there a way I can put a large capacitor over the circuit somewhere rather than have to take something out? I designed it so that everything was very close together, and it would be a real pain to have to fix it all up again.

How do I sheild the steel box from the circuit? Put it on a layer of rubber or something?

And what about the fuses.. just put one inline with the transformer power?

Cheers All,

Tim.

 

[chemelec]

You just Enclose it Inside a Metal Box, Insulated from the box. Bring the wires out through some small holes.

 

[letsrelaythat]

and about the fuses?