Its been long since I've been here
So, I made a boost converter that converts 3.7v to 5.3V(Is this too much?) To charge my phone. It works well, But...
The switch I'm using(2SC3807) Is getting warm while charging my big phone. Tried TIP41C and it blew on the spot. Its drawing 1A of current, So its normal.
My question is: Should I add a parallel transistor or go for a heatsink? Which would do the job?
By the way, Base drive current is 200ma at 3.6v, Everything is ok, Charges very fast.
It feels like its dissipating more than 500MW of heat.
Switching frequency is unknown, Because I don't have a scope, But its above 300Khz.
So, I made a boost converter that converts 3.7v to 5.3V(Is this too much?) To charge my phone. It works well, But...
The switch I'm using(2SC3807) Is getting warm while charging my big phone. Tried TIP41C and it blew on the spot. Its drawing 1A of current, So its normal.
My question is: Should I add a parallel transistor or go for a heatsink? Which would do the job?
By the way, Base drive current is 200ma at 3.6v, Everything is ok, Charges very fast.
It feels like its dissipating more than 500MW of heat.
Switching frequency is unknown, Because I don't have a scope, But its above 300Khz.