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I am making a board (111mm x 146mm, 4 layer) with a PZT3904 transistor. It has a heat sink pin and I am uncertain as to how much copper I have to put around that pin so it has adequate heat dissipation. The datasheet says I need the following for a maximum of 1 watt heat dissipation:
Quote
I...
I am trying to figure out if I need only one fan for my heatsink or more?
I asking cause the fan that I have selected do not cover the entire heatsink area. Does it means that I need to have more fans
in order to maximize the cooling from the heatsink?
In that case, if my fan needs to have a...
Hello :happy:,
I have in the recent days tried to simulate the temperatures levels in a charger (AC/DC-module) in a Heatsinkcalculator software:
**broken link removed**
Based on the power losses calculations for half-bridge, where we have two MOSFETs that are operating one at the time,
where...
This is a recurring problem for me. Do I need to use forced air cooling with fans or not? And although I always have this situation, I can never decide what to do, or to put it better I don't know how, on which criteria, should I decide about this.
What my designs usually have is a power hungry...
I have a 52V transformer that after rect. produces 3.3A at 52V. I wish to use either a LM317 or a LM338 with 2N3055 power transistors.
If you run 2N3055's in parallel you are suppose d to have a resistor like a 0.1Ohm 10W from each emitter so that thermal runaway doesn't take place.Surely the...
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