dc dc converter design 24V from 12V

[juaneduardodelgado]

dc dc converter design

Hi,

I'm trying to design a dc dc converter. I just need to obtain a 24V DC output from a 12V DC input, and maintain the power of the input (good efficiency).

I know what is a boost converter, and that I need a PWM module with a duty cycle of 50% to obtain a gain of 2.

But what happens with the design of the inductance and the capacitor?
I don't know how to design this part?

Someday I saw in a development board a design to obtain a dc voltage from an pwm output. But I guess it was a buck converter with a regulator and a filter (easier, I think).

I am going to take the 12V DC from a DLINK adapter that take a PoE line and offers that output. The power of the VDC input is 12W. I am going to use this to supply a RFID reader and a light system.

Thanks a lot!!!

 

[youssef_zein]

dc dc converter design

try to use the charge pumps they are the main dc to dc convrters you can use them to multiply by n.
i used charge pump to make a 30v from 5 volts to power up an opamp.
here is a file that will help you:
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[Tahmid]

dc dc converter design

Hi,
Look here for calculations:

Maxim has many such ICs. Take a look at application note:
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The IC is MAX668, 12v to 24v 3A boost converter.

Reference page:
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Datasheet:
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