Sammas
Well-known member
Dear band of merry men.
Here is a question for you about regulator heatsinking. Typically I just attach the regulator to the case (isolated of course), but at the moment I have a JLM powerstation on my bench with 5 regs nicely lined up. It is going to require considerable heatsinking. Originally I was going to slice a square out of the back of the case, mount a big 200mm finned heatsink off the back, and push the PCB and regulators up against it on the inside (bolted to each other, naturally). Some regulator on heatsink action. Kinky.
Is this overkill? According to the JLM psu calculator I require about a 10degree thermal resistance heatsink. The one I have in question is 5.5 degree thermal resistance. Do I really need to slice out the square of case? Can I have a case sandwich? regulators -> case -> heatsink all jammed together with bolts?
Also, what are the repercussions of overheating regulators? Thermal shutdown? Fireworks?
Here is a question for you about regulator heatsinking. Typically I just attach the regulator to the case (isolated of course), but at the moment I have a JLM powerstation on my bench with 5 regs nicely lined up. It is going to require considerable heatsinking. Originally I was going to slice a square out of the back of the case, mount a big 200mm finned heatsink off the back, and push the PCB and regulators up against it on the inside (bolted to each other, naturally). Some regulator on heatsink action. Kinky.
Is this overkill? According to the JLM psu calculator I require about a 10degree thermal resistance heatsink. The one I have in question is 5.5 degree thermal resistance. Do I really need to slice out the square of case? Can I have a case sandwich? regulators -> case -> heatsink all jammed together with bolts?
Also, what are the repercussions of overheating regulators? Thermal shutdown? Fireworks?