supercapactior step up converter

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aspirecole

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i want to boost my supercap voltage to 24V.. the rated voltage for the supercap is 16.2. i only want to operate it from 10V-15V only... which chip or IC is suitable to control the output voltage of the boost converter to 24V constant even the supercap voltage is decreasing from 15-10V.
 

It's a usual boost converter specification. You'll find suitable chips at major manufacturers like TI, Linear, Fairchildsemi. The choice depends e.g. on your current demand.
 

FvM said:
It's a usual boost converter specification. You'll find suitable chips at major manufacturers like TI, Linear, Fairchildsemi. The choice depends e.g. on your current demand.
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if my demand is 10A output current.. which model is suitable?
 

10 A output current refers to >24 A input current at 10V. An external switch transistor is required in this case. A standard current mode controller like UC3842, together with respectively strong MOSFET, a 10A schottky diode and storage inductor can do. For synchronous switching (lower losses), you can e.g. use LM5122.
 



UC3842 can make the output constant even the supply is changing?
 

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