11–20 of 71 posts
A great advice one gets at around minute 9 is to place footprints for anything you consider remotely possible or that you'd like to test. You can always leave them unpopulated and the tradeoff between area lost and time lost is usually worth the area, especially in the first iterations of a pcb.
@3:10 “you need to consider 99.9% of the power is converted to heat” uhm that would be quite an efficient heater you designed there!
The same way every diesel engine is just oil stove with side effect of rotary motion. If the engine was in the back of the car you could totally put a pot on it and braise something.
Earlier quoted context omitted.
Only if the resistive heater in question is DC or AC with reactive power compensation
A purely resistive heater, by definition, has no reactive component so there's no reactive power considerer. The 0.1% mentioned might be the light that the project produces.
@3:10 “you need to consider 99.9% of the power is converted to heat” uhm that would be quite an efficient heater you designed there!
Every computer is just space heater with side effect of computations. The same way every diesel engine is just oil stove with side effect of rotary motion. If the engine was in the back of the car you could totally put a pot on it and braise something.
Earlier quoted context omitted.
A purely resistive heater, by definition, has no reactive component so there's no reactive power considerer. The 0.1% mentioned might be the light that the project produces.
Assuming you're not in an endless vacuum, the light will also become heat.
Earlier quoted context omitted.
A purely resistive heater, by definition, has no reactive component so there's no reactive power considerer. The 0.1% mentioned might be the light that the project produces.
Assuming you're not in an endless vacuum, the light will also become heat.
(I thought he was going to end up with R2-D2; the way the design was going…)
@3:10 “you need to consider 99.9% of the power is converted to heat” uhm that would be quite an efficient heater you designed there!
Not really? The best heaters are heat pumps which can under typical operation reach 300-500% efficiency (COP). Technically they aren't converting the electricity into heat, but for arguments sake here about heaters we only care about electricity consumed to heat generated.
In fact they are converting 100% of it, they are just also collecting and moving additional heat in the process.