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small boost converter help

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mastertushar

mastertushar

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hi i want to design an boost conveter in range 4.3v to 7.1 volts .. ouput 15v at current of 750mA .. plz suggest me any circuit..
and i have to drive all circuitary on input supply only.. i.e.4.3v to 7.1 volts only no bias supply ..
 

Hi,
Search here on the site as Boost Circuit Design and you will find hundreds helpful posts.
 

Hi gentleman!
It is possible to use Uc3844 to obtain a boost converter or flyback or forward.
It is a good ic. and its circuit is very simple.
Regards
Goldsmith
 

sice your output is 15V,750mA you will need a input current of 2.6A at 4.3V worst....that means your switch(internal or external) should be able to handle 2.6A....
you can refer these IC's and application circuit mentioned in the datasheet below...

DC/DC Converter (Integrated Switch) - Step-Up Regulator - TPS61175 - TI.com

**broken link removed**

must be available with other manufacturers too..shall GOOGLE and see...
 
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