aliakbar

modified 12 years ago

6 v Dc to 12 v Dc

387

08:36:23

published 12 years ago

APO69

12 years ago

If you use a Beta <=50 you can use R2 & R3 < 100K

APO69

12 years ago

You must quit R =2'2k and diode. Then reconect C2 with Q2 collector.

APO69

12 years ago

Select the output to see the signal curve.

APO69

12 years ago

... and smile.

bakupcpu

12 years ago

Remove the diode and the 2.2Kohms resistor then the 2 4.7K up them to 10K also don't forget to adjust the simulation speed this circuit run well at 500uS

APO69

12 years ago

I forget. R1 & R4 = 1 K. R2 & R3 = 100 K. C 1 & C2 = 1 uf

APO69

12 years ago

And Q1 & Q2 Beta =100

aliakbar

12 years ago

Is it R5 corect

APO69

12 years ago

All is ok but C2 must be reconect to Q2 COLLECTOR NOT TO BASE

APO69

12 years ago

Change again, Q1 & Q2 Beta to 50 and time simulation at 50 ms/s

APO69

12 years ago

Play and wait for a few seconds. The oscilator will start to show the magic.

APO69

12 years ago

It works in my phone...

APO69

12 years ago

If you want to get a good emulation, put simulation speed to 100 ms/s

aliakbar

12 years ago

Thanks how can I adjust frequency to Dc

bakupcpu

12 years ago

You can adjust the frequency by changing the capacitor and resistor also have them different value will also affect the duty cycle

aliakbar

12 years ago

Thanks I don't wanna change duty but a little I changed outside voltage

APO69

12 years ago

From 12 to 0?

APO69

12 years ago

I need an answer. Do you think to build this circuit? It will not work. Time charge is very little. You need a frequency of at least 1KHz

APO69

12 years ago

Look at this circuit: 5v DC to AC to 10v 1w DC. Ver.2

aliakbar

12 years ago

Thanks frequency was untidy and I changed R2 and R3 and it was work

echo851

12 years ago

I couldnt manage to find an inductor with the same value as the one used in the circuit, but I successfully boosted a 6V input to 13volts.

echo851

12 years ago

So this circuit works in real life :)

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