How this 12 to 24v DC step up inverter oscillates?

[grittinjames]

hai

some one plz explain explain how this circuit oscilate

i am not getting any idea,

but this is working fine

 

[Eugen_E]

12v to 24v transformer

Q1 and Q2 form a push pull amplifier, biased with resistors - AB class, and driving the primary winding of the transformer. The circuit will oscillate because of the positive feedback from the secondary winding.The secondary winding is differentially coupled to the input of the amplifier, and because of the winding polarity ensures positive feedback. The oscillation frequency is determined by resonance of the LC circuit - primary winding+100n cap.

After the circuit starts to oscilate, the amplitude will increase and will be limited to 12V on each half of the primary winding - the waveform will be almost squarewave. On the full primary winding, the voltage is 24V and is rectified with the diode bridge.

 

[satya_vijayawada]

24v booster

hi grittinjames,

what is the transformer core

i need transformer details,

pls...................

 

[grittinjames]

12v to 24v converter circuit

it is ferite

it dost matter in working
4 t winding act as +ve feed back



i hope this some clue



i will donate 5 point to who expalin well this circuit

 

[eanic]

12v to 24v

It easy Idea.

This is next easy circuit 12VDC to 28VDC.

**broken link removed**
Source : https://www.w6pql.com

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https://www.elecfree.com/electronic/dc12v-to-dc28v-converter-with-lm2585/

 

[nonot]

circuit 12v to 24v

By taking the 12V signal, and alternating the transistors to turn them on and off in alternating pattern, you achieve an AC signal, you use the transformer to gain voltage with increased # turns on the output. Then you just use a bridge rectifier to turn the output of the transformer as AC back into DC and filter it with Caps to remove the ripple.

 

[eanic]

12 to 24v converter schematics

This is circuit DC/DC Converter DC12V to 24V 2A by IC 40106 and Mosfet BUZ11.

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**broken link removed**

 

[Rame]

electrical circuit transformer from 24 v to 12v

Hi,


Nonot explaination is simple and perfect for the circuit...

Regards

Ramesh

 

[grittinjames]

12v to 24v schematic

no one knows?

 

[oddbudman]

dc-dc boost circuit lm2585

Eugen_E did an excellent job explaining how it works. I suggest you read his explanation a few more times.

If your interested in this circuit, you may wish to also look at the Royer Converter which is used commonly in energy conversion.

Self oscillating converters are the basis for many important electronic circuits. Its well worth investing some time into understanding this style of circuitry.

oddbudman

 

[sanks85]

Re: 12v to 24v converter circuit

Hello grittinjames,

I was reading your thread and was going through the circuit you provided.

It is really interesting.

But i have a query.

Can you provide me some idea that what is 4t and 13t means in the transformer ?

Looking forward for your reply.

Thanks

 

[godfreyl]

It is the number of turns of wire on the transformer.