1,2v to 3v dc/dc converter - Page 2 - Electronic Circuits Projects Diagrams Free

iONic · 30th August 2007, 11:26 PM

If you use the circuit switch to "turn off" the LED it will disconnect the battery from the rest of the circuit and NO current should be discarded.

audioguru · 31st August 2007, 11:33 PM

Why do so many people who live on the moon come here asking for circuits then say they can't get ordinary common ICs on the moon???
Why don't they ask the other people on the moon???

Hero999 · 1st September 2007, 09:47 AM

Looking back, I think we've all misunderstood what the origional posted wanted. I think we got tied to the idea of this circuit and the LED. I think, that all he wanted was a DC-DC converter to boost 1.2V to 3V without the LED. He mistakenly thought that he could just remove the LED from this circuit and it would work. Not that this matters now, the origional poster has gone but it's still a good idea to take not of this for future reference.

mvs sarma · 1st September 2007, 02:12 PM

Quote:

Originally Posted by kalaman

My electronic knowledge is a little bad. So according me any circuit spends more watts when you use load. When you remove the load every circuit's standby current decreases. But this circuit surprised me in this case.

As a result i'm wrong. I will use this circuit with solar energy and any mA will be important for me.

This was just curiosity.

I won't remove the led forever.

Best regards

Imagine - 'energy can neither be created .....'

100% efficiency doesn't exist. whether you load or dont load you are asking the circuit to do some work -- 'produce higher voltage from 1.5V cell.' YES it will at the cost of some current-- Nigel tried to explain the same and he said it is NORMAL.
you expect output voltage to remain ata point you imagine-- imean- without realizing a circuit element for your spec. naturall in the abscence of any feedback network from the output DC, the capacitoe will encounter more that the voltage you have planned for. some might get HOT some might EXPLODE.

IF YOU WANT TO MOD THE CIRCUIT FOR ANOTHER USE - NOT FOR THE LED PROVIDED BY DESIGNER-- YOU DESIGN PRIOPERLY WITH A DC FEEDBACK AND A NOMINAL DUMMY LOAD.

please don't feel some one is angry with you -- to be angry - as you know it costs us.

31st August 2007, 11:33 PM	(permalink)
audioguru Experienced Member	Why do so many people who live on the moon come here asking for circuits then say they can't get ordinary common ICs on the moon??? Why don't they ask the other people on the moon??? __________________ Uncle $crooge

1st September 2007, 09:47 AM	(permalink)
Hero999 Experienced Member	Looking back, I think we've all misunderstood what the origional posted wanted. I think we got tied to the idea of this circuit and the LED. I think, that all he wanted was a DC-DC converter to boost 1.2V to 3V without the LED. He mistakenly thought that he could just remove the LED from this circuit and it would work. Not that this matters now, the origional poster has gone but it's still a good idea to take not of this for future reference. __________________ What's so bad about Microsoft? Get Opera it's simply a superb browser.

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30th August 2007, 11:26 PM	(permalink)
iONic Experienced Member	If you use the circuit switch to "turn off" the LED it will disconnect the battery from the rest of the circuit and NO current should be discarded.