# Questions tagged [power-dissipation]

Anything related to power dissipation in electrical and electronic circuits and components, i.e. the process in which electrical energy is converted to heat when current flows through them.

159 questions
Filter by
Sorted by
Tagged with
514 views

### How the problem of dark silicon is/will be solved?

I read in this article that within a couple of years about 21% of transistors will have to be switched off some time, else the chip will cross its limit of heat dissipation. What general techniques (...
3k views

### Can a soapbox-sized device dissipate 10-15W of heat? If yes, how?

Some time ago, I built a soapbox-sized battery testing device. One of its functions was to discharge batteries at a specified current, and it handled most of the common battery sizes well, but its ...
8k views

### MOSFET heat calculation question

I am using the FQP30N06L MOSFET: http://www.fairchildsemi.com/ds/FQ/FQP30N06L.pdf. As far as I understand the data sheet, if I connect 5V to the gate and run 2A through drain to source then with a \\$...
986 views

### Using a voltage divider on LED IC driver output

Would using a voltage divider on the outputs affect the drivers operation? The Driver is a 24 channel current sink IC that will be used for automotive interior lighting. LED will have a Vf of 3.3v @ ...
2k views

### Would replacing a resistor by another one of identical value but higher power rating affect the working of a circuit?

The schematic recommends using 20 Ω 1W as collector resistance. What I have at hand are two 10 Ω rated for 10W. I'm guessing the change should be acceptable ... What difference would it ...
189 views

### How many watts will the resistor in this naîve PSU dissipate?

One would be inclined to think the average current on resistor R would be exactly the same as in the load L, but I'm not so sure of that fact, due to the effect of the (big, 1000uF+) capacitors. ...
12k views

### How to choose correct resistor with proper wattage and ohms for 6 leds connected in a serial circuit?

Let's suppose I've six LED lights with each 3.2 Volt and 20mA and all six of them are connected in one serial circuit. I know there is better setup but for this I'm using this circuit setup. I'm ...