An electronic device which supplies electrical energy to a load. Can be AC or DC input. Typically DC output.
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174 views
alternative fix to: How can I calculate a Joule Thief
This is based on the original question: "How can I calculate a Joule Thief.
How Can I calculate a Joule Thief.
Since the gain of common emitter voltage amplifier and it will depend widely on the ...
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1answer
345 views
communication between 2 arduino crash when external power supply is plugged
i have one arduino mega that communicates with one arduino leonardo.
the leonardo controls some motors (mega tell to the leonardo how many step to do... leonardo is a coprocessor for the motor in ...
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2answers
194 views
Powering a DC to DC power supply that came without an adaptor
I bought a mini ATX DC to DC power supply on eBay to use with a motherboard. Unfortunately I did not notice it came without any kind of adaptor. So what I have is basically two wires, red and black, ...
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2answers
123 views
Finding maximum current experimentally
How is the maximum current that a certain circuit can provide found experimentally? Say, that of a power supply circuit?
Can it be done without destroying the circuit?
I'm looking at designing some ...
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2answers
499 views
Step up DC voltage from 12-24V to 60V
I need to provide a 60V/1A power source from a 12-24V input, -40 to 85 degC temperature range. Parametric searches for DC/DC converters at a couple online vendors don't seem to be turning up much.
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1answer
410 views
Is it safe to keep on using AC adapter with a damaged output capacitor?
I was experimenting with my universal laptop adapter (Meind 100W) and when I switched it to 34V mode (while official max is 24V) the capacitor (25V) popped (the top opened and some white fibers spread ...
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3answers
384 views
Can I replace the power adapter of 12V/0.8A with one of 12V/2A? [duplicate]
Possible Duplicate:
Choosing power supply, how to get the voltage and current ratings?
Can I replace the power adapter of 12V/0.8A with one of 12V/2A?
I have a Digital device that uses a ...
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1answer
311 views
Switched bleeder resistor on a capacitive power supply
I posted a more vague version of this question a few days ago here and this question was linked as being similar. Answers in both threads were extremely helpful and were along the lines I was ...
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2answers
1k views
Supply power to USB with external power supply
I have a device (pyro-electric array detector) that connects to the Pc vis a usb. The device itself has an additonal power supply as well.
Now a strange thing happens: If I connect the device to a ...
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170 views
How to design a power supply unit [closed]
How do I design a power supply unit with:
Input: 230 Vac
Output: 5 Vdc, 500 mA
Use Switching Regulator for my design.
