Non AMP

Considering the url attached what should be the power ratings of the resistors ?

Thread starter munzir
Start date Oct 6, 2012

Status: Not open for further replies.

Oct 6, 2012

#1

M

munzir

Full Member level 6

Considering the url of attached image what should be the power ratings of the resistors ?

ThankXXX

Oct 7, 2012

#2

C

chuckey

Advanced Member level 6

Are you serious? it depends on what voltage the pulse is and how often/long it occurs. It is not likely to be critical .25W?
Frank

Oct 8, 2012

#3

M

munzir

Full Member level 6

so of what power rating should i use the resistor ?
Or if its different then tell me the way to calculate the power rating of the resistor used in this circuitry ???

Oct 8, 2012

#4

C

chuckey

Advanced Member level 6

You work out the voltage drop across it, call it V, then the power dissipated would be v^2/R, but the pulse is only there for 1/nth of the time, so the power dissipated is V^2/(R X n) W.
Frank

Oct 9, 2012

#5

J

jimmy45

Newbie level 1

haaaaaaaaaaaaaa*-*-*-*-*-*-*-
-*****

Oct 9, 2012

#6

M

munzir

Full Member level 6

How long would the pulse be there ? What's the time then ?

Status: Not open for further replies.

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