All Questions
Tagged with electrolytic-capacitor capacitor
189
questions
0
votes
3
answers
515
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Replacing the capacitor on an old Philips amplifier
My Philips amplifier broke down (model FA153) and my friend told me it's likely the capicators have worn out (they were produced in West Germany ;))
I am quite the layman in electrical engineering, ...
0
votes
4
answers
3k
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Orientation of an electrolytic capacitor in a circuit
I am attempting to debug the following circuit. Looking at the schematic, starting at Vin on the left of the diagram, I want to figure out if the 10uF capacitor is the issue with the circuit.
This ...
0
votes
1
answer
310
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Substituting a capacitor of different capacitance [duplicate]
If a circuit calls for a capacitor with a specific capacitance, what happens if a capacitor with a different capacitance is substituted?
I have a circuit that calls for a 250uF capacitor to power a ...
0
votes
1
answer
662
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Can I change 1000 uF, 16 V for 1000 uF, 10 V?
Few days ago my main monitor did not turned on. I opened it and discovered three capacitors, of 1000 uF/16 V each, in bad shape.
Since all stores here in my town are closed due the quarentine, I'm ...
2
votes
1
answer
808
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How to test if a capacitor is good if my DMM farad's range is less than the capacitor's
So I found out that my DMM maximum reading is 100uF (Though its price is twice the ones that reads upto 100mF, mostly because its 8 years old). It doesn't have manual range for capacitance measurement,...
- 179
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1
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130
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How to find out the values of a surface capacitor
Surface resistor has numbers on it to decide whether it's good or bad after measuring it with DMM.
But when I looked at surface capacitors, they don't have numbers or strips to decide their validity ...
- 179
1
vote
2
answers
9k
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How long do electrolytic capacitors last in seldom-used equipment?
I have a Fender solid-state amplifier nearing its 40th birthday. I've been going through it, replacing some failed logic chips and updating some of the op-amps (gaining about 10dB in S/N ratio!).
...
- 299
0
votes
2
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380
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Replacing these capacitors?
This is a controller board for a home ventilation system. It runs fine most of the time but sometimes the ventilation stops for one minute, then starts again and runs normally for anywhere between one ...
0
votes
2
answers
496
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22uF 0805 SMD capacitor for voltage regulator?
I'm trying to use some part of this circuit dual power supply circuit:
http://embedded-lab.com/blog/multi-purpose-dual-power-supply-5-0v-and-3-3v-regulator-board/
Credits to embedded-lab.com.
I ...
- 14k
1
vote
3
answers
2k
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Charging 2 super capacitors in series
I have recently received my order of 2 2.7V 500F super capacitors from eBay.
After much searching, my yet unanswered question is:
Can I connect both of these capacitors in series and charge with 5V ...
user235520
8
votes
3
answers
1k
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Why should care be taken while closing a capacitive circuit?
The other day in class, our professor told us that care should be taken while closing a capacitive circuit and while opening an inductive circuit.
Why is this so?
I partly understand the inductive ...
- 257
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votes
2
answers
401
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Why use both big polarized cap and small non-polarized cap in the TB6612FNG DC motor controller terminal?
In the datasheet of TB6612FNG DC motor controller, Typical Application Diagram section.
Both DC sources are smoothed by caps. But I don't understand why there are two caps in each position.
The ...
- 103
0
votes
0
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71
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How to calculate a capacitor's discharge time? [duplicate]
How do i calculate a capacitor with a specific capacitance loaded with a specific resistance discharge time and reach a specific voltage?
So let's say i have a 22uF capacitor charged with 12 volts ...
- 15
15
votes
1
answer
1k
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Why do some devices use electrolytic capacitors instead of ceramics for small value components?
I've recently run into a number of consumer-grade devices that use 50v, 0.22uF electrolytic capacitors, as well as other similarly rated parts, all below about 10uF. In use, the voltages on them are ...
- 153
2
votes
1
answer
104
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Assembling and Dis-assembling a Charged Capacitor
If I have an electrolytic capacitor, which is a cylindrical body in which the two plates are rolled-up with a dielectric paper in between them, of very high value (say 1F) and I charge it using a DC ...
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