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a doubt need your solution...

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batistuta

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i am a freshman in dc-dc converter, after study some textbook, i want to get the answer about:

if i have a dc-dc converter, take buck for example, the buck control is voltage mode, if i want a buck control is current mode, and the function of the buck do not change, my question is : are there some blocks which used in voltage mode can be reused in current mode? does it possible or need new design for the current mode?

thanks.
baggio
 

Bandgap voltage reference, comparator, Power transistor (both PMOS & NMOS) , Gate driver and SR latch can be reused.
 

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    batistuta

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what about monitor circuit? and UV and ov??
 

Thermal shutdown, over currernt protection, under-voltage lock-out and over-voltage lock-out.
 

shaq said:
Thermal shutdown, over currernt protection, under-voltage lock-out and over-voltage lock-out.
Click to expand...

agree with you shaq.....

i guess you are a senior in this part... can you tell me what is the relation among the sense crrent level and compensation level(ramp)and output of error amplifier(ve)....in current mode control...
thanks.
 

and temperature detector .I think many convertors have it.
 

yes...
can someone give me more solution?
 

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