Electronics > Projects, Designs, and Technical Stuff
On/Off switch required ?
Jan Audio:
Hi, i make my projects without on off button normally, is it bad for capacitors ?
The capacitor loses - connection while still being full when pulling the powersupply.
Does it affect the lifespan of capacitors ?
Maybe i need to add power button for my next project.
thanks
Vovk_Z:
Sorry, it's almost totally unclear what do you mean. You don't want to turn off power switch?
Electrolytic capacitors age with time and age with work and age a lot with heavy work.
Jan Audio:
When powering down i remove the power supply, is it bad for the elkos ?
Or do i need a on/off button that makes sure the ground stays connected while the elko is still full ?
Cubdriver:
Still not quite following you. By 'remove the power supply' do you mean like unplugging or disconnecting the AC mains cable feeding the power supply built into the device, or are you talking about removing power from a device that's fed by a mains powered DC supply (like a wall wart or brick) by unplugging the DC feed from that power supply o the project?
Where are the electrolytics you're concerned about - in the project that's been disconnected from the D.C. power source, or in the output of the D.C. power source that you're disconnecting?
-Pat
Jan Audio:
I learned that the higher voltage on the cap always should be on the + else it is bad and you have to replace the cap.
If the cap is still full and both + and - are disconnedted, how does the cap know it is higher then the - ?
How can i explain ?
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