All Questions
8
questions
3
votes
1
answer
586
views
Combining non-isolated switch mode power supplies in parallel into a single supply
I'm trying to combine several SMPSs each having a ~350VDC output @100mA each.
Background:
Purchased an unused batch of small DC->DC SMPSs in good industrial quality. Unfortunately they're too weak ...
- 31
1
vote
1
answer
4k
views
What to consider when powering multiple devices in parallel?
Briefly about my background, which might inform the question. I'm currently self-educating myself on some electrical engineering on-the-job. I'm learning from Art of Electronics and some other ...
- 23
0
votes
1
answer
65
views
Stepping down voltage
I have a LiPo that is 1800mAh,25C,11.1V. it can supply a current of 1.8*25 = 45A. I need a current of 3.5A to drive a LOAD(a Nichrome wire of length 5-6cm) and 7.4V. How do i proceed with this ?
I ...
0
votes
2
answers
1k
views
Meanwell RT125D supply behaviour
I am using a meanwell RT125D power supply which has
230 V AC input and 3 O/P i.e. 5V, 12V and 24V.
While I used the supply, without any load, the behaviour of ...
-1
votes
1
answer
224
views
Current and wattage overload
So, I have an extension cord reel with four outlets and current overload protection can handle a total of 2500W, 110V, 20A. Im confused about those specification because they do not add up but that's ...
- 15
0
votes
2
answers
2k
views
Electrical power strips and current overloading
simulate this circuit – Schematic created using CircuitLab
Currently there is an extension cord that runs from the wall with 10kA. The current on the cord says 10 amps, 125 volts, and 1250 ...
- 15
3
votes
1
answer
416
views
How do variable current limiters work in power supplies?
Bench top power supplies often enable you not only the set the voltage, but the maximum current.
How do these bench supplies provide this variable current?
- 461
10
votes
6
answers
7k
views
Prevent overcurrent while filter capacitor is charged
I have this circuit:
On start-up, the power supply experiences an overcurrent condition, because when the capacitor is charged, it looks like a short circuit as seen from the power supply. How can I ...
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