Cap Bank detector
Cap Bank detector
(OP)
Looking for an inexpensive, simple, effective circuit to detect when a capacitor in capacitor bank shorts out or blows a fuse and is disconnected?
Challenges:
Frequency is variable and duty cycle is variable.
Ripple voltage is also variable. The capacitors are huge
measured in Farads.
Challenges:
Frequency is variable and duty cycle is variable.
Ripple voltage is also variable. The capacitors are huge
measured in Farads.





RE: Cap Bank detector
I recall someone had recently integrated the LED indicator into some automobile (assumed 12 volts) fuses.
If there isn't a fuse, then just follow the smoke.
Electric car project?
RE: Cap Bank detector
http://www.ferraz-shawmut.com/advisor/pdf/SCDC.pdf
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RE: Cap Bank detector
I have thought about the LED but using an opto to send the
signal to a micro, but perhaps a visual indicator is
a good thing too. The ejector pin idea is also something to consider.
The app is not automotive but it is low voltage.
RE: Cap Bank detector
blown fuse indicator.
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RE: Cap Bank detector
RE: Cap Bank detector
Nothing wrong with lamps--LEDs have longer life [million hours]. Incandescent lamps burn out after a couple 1,000 hours.
In addition, the system needs to know if the cap bank is faulty and needs to be serviced. One way is to see if the fuse in series with cap is blown open or if the cap is shorted but has not blown the fuse.
OperaHouse,
The cap bank will have its own discharge circuit to comply
with safety. Though for voltages under 30V, it is not the voltage, it is the joules that matters.
Thanks for your comments.