Tagged Questions

0
votes
1answer
97 views

Can I change the input voltage for this temperature-controlled fan circuit:? [duplicate]

Possible Duplicate: Can this temperature-controlled fan circuit be modified for different input voltage? For the above temperature-controlled fan control circuit which is originally ...
2
votes
2answers
237 views

Can this temperature-controlled fan circuit be modified for different input voltage?

I want to know if this same circuit can be used for 220 or 230 volt input, and if there are any components that need to be modified. C3 has 600V capacity and C1 and C2 have 250 volt. Link to ...
-2
votes
1answer
202 views

Indetifying burnt components [closed]

I have been far from electronics lately, but a related problem has appeared at work and I had to take a look. So: somebody screwed up and burnt input components of two devices: an expensive ...
8
votes
1answer
452 views

Understanding CS5463's basic circuit power supply

I'm trying to put the CS5463 chip functional using the example circuitry on page 41 of the datasheet (attached bellow): Right now, I'm working on the top part of the circuit, which is the IC power ...
5
votes
1answer
895 views

NMOS FET selection for reverse polarity protection

I am working on a reverse polarity protection circuit, similar to that in Figure 2 of SLVA139: Reverse Current/Battery Protection Circuits. Here is my circuit: My case is slightly more complex due ...
2
votes
2answers
967 views

Solar power egg incubator

I'm going to Africa this summer for a veterinary mission and need an egg incubator. Considering I will not have a steady supply of power I need to find an efficient way to power an incubator ...
6
votes
3answers
363 views

best quick&cheap power supply inverter

I have a +5V power supply and need to invert to a -5V supply sourcing about 25mA. I've got an LMC7660 running now. It's ok for the short term, it outputs -4.4V with 100mV p-p switching noise, but ...
2
votes
2answers
1k views

Inductor for LM2575

Can anyone suggest a 330uH inductor and associated Eagle .lbr for use with an LM2575? I've been looking all day for this! Any suggestions would be appreciated.