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The Philippine Electronics and Technology Forum > Analog and Mixed Signal > Electrical Circuits and Devices (Moderators: marcelino, DyoodekS) > capacitor type
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Author Topic: capacitor type  (Read 2205 times)
imorph
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« on: June 19, 2008, 11:43:55 AM »
do we have a standard .47mF/630V AC capacitor?
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« on: June 19, 2008, 11:43:55 AM »
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Ate Shey
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« Reply #1 on: June 19, 2008, 12:36:40 PM »
mF ? milliFarad or microFarad? ..
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« Reply #2 on: June 19, 2008, 12:43:53 PM »
cguro po
470 uF =.47mF  Wink
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« Reply #3 on: June 19, 2008, 01:12:23 PM »
Quote from: imorph on June 19, 2008, 11:43:55 AM
do we have a standard .47mF/630V AC capacitor?

milli or micro?

br Grin
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imorph
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« Reply #4 on: June 19, 2008, 01:49:00 PM »
.47mF=470uF Grin
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ahlburuto
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« Reply #5 on: June 19, 2008, 02:13:43 PM »
have you check na sa raon? like deeco? anung application ba?

br
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imorph
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« Reply #6 on: June 19, 2008, 02:35:32 PM »
130Vac coupling..mag-parallel na lng kaya ako Grin
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« Reply #7 on: June 19, 2008, 03:15:48 PM »
pwede.... saan mo ba gagamitin at napakataas naman ng voltage?


br
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raldski
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« Reply #8 on: June 20, 2008, 12:43:42 AM »
Yes, I've used capacitors na 470uF, 630Vdc electrolytic capacitors. standard yan. kya lang di ko alam kung available locally.  Huh
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« Reply #9 on: June 20, 2008, 06:35:11 AM »
Quote from: raldski on June 20, 2008, 12:43:42 AM
Yes, I've used capacitors na 470uF, 630Vdc electrolytic capacitors. standard yan. kya lang di ko alam kung available locally.  Huh


ac type capacitor ang tanong ng tread starter eh Grin
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rdpzycho
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« Reply #10 on: June 21, 2008, 01:27:28 AM »
pwede gumamit ng 2 DC capacitor and 2 diodes to emulate an AC capacitor. pero may losses ka sa diode. Grin
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« Reply #11 on: June 21, 2008, 07:51:42 AM »
Quote from: rdpzycho on June 21, 2008, 01:27:28 AM
pwede gumamit ng 2 DC capacitor and 2 diodes to emulate an AC capacitor. pero may losses ka sa diode. Grin

Me sample connection ka nito?


br
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« Reply #12 on: June 21, 2008, 11:04:39 AM »
wala akong EDA pang-draw ng schematic. pero eto yung connection.

+ of capacitor to cathode of diode, - of capacitor to anode of diode, tapos connect in series yung - plus anode dun sa - plus anode nung kabilang capacitor. sa positive cycle daan sa + ng capacitor skip yung next capacitor dahil sa diode dadaan. sa negative cycle sa kabilang capacitor naman dadaan. may limitations din 'to, IIRC. sa isang patent or technical paper ko 'to nabasa dati.
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« Reply #13 on: June 21, 2008, 07:33:53 PM »
Quote from: imorph on June 19, 2008, 11:43:55 AM
do we have a standard .47mF/630V AC capacitor?


470 uF ... e2 meron talaga...
630V AC ... e2 parang wala.... masyadong mataas ata at sa AC pa... baka la nga locally...
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grimlock99
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« Reply #14 on: June 21, 2008, 07:42:54 PM »
madali lang naman makagawa nyan gamit ang electrolytic capacitor Roll Eyes Cool
                C1        C2
         -----| (-----| (-------
              +    -    +    -
C1 940 uF electrolytic 630V
C2 940 uF electrolytic 630V
Total= 470 uF Cheesy nonpolar capacitor Roll Eyes
edi hindi ka nahirapan Grin
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« Reply #15 on: June 21, 2008, 07:49:08 PM »
Quote from: grimlock99 on June 21, 2008, 07:42:54 PM
madali lang naman makagawa nyan gamit ang electrolytic capacitor Roll Eyes Cool
                C1        C2
         -----| (-----| (-------
              +    -    +    -
C1 940 uF electrolytic 630V
C2 940 uF electrolytic 630V
Total= 470 uF Cheesy nonpolar capacitor Roll Eyes
edi hindi ka nahirapan Grin

meron bang 940uF? Huh kahit meron, mas magastos pa rin 'to.. hehe  Cheesy
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« Reply #16 on: June 21, 2008, 09:05:00 PM »
Quote from: rdpzycho on June 21, 2008, 11:04:39 AM
wala akong EDA pang-draw ng schematic. pero eto yung connection.

+ of capacitor to cathode of diode, - of capacitor to anode of diode, tapos connect in series yung - plus anode dun sa - plus anode nung kabilang capacitor. sa positive cycle daan sa + ng capacitor skip yung next capacitor dahil sa diode dadaan. sa negative cycle sa kabilang capacitor naman dadaan. may limitations din 'to, IIRC. sa isang patent or technical paper ko 'to nabasa dati.

ok salamat bro....

br
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rdpzycho
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« Reply #17 on: June 21, 2008, 10:01:04 PM »
polar capacitor pa rin yun. sabog capacitor sa negative cycle. Grin Grin Grin

--+---| ( ---+--- ) |---+--
   +---|<----+---->|---+

two polar electrolytic capacitors connected to be one single nonpolar capacitor using two diodes. yung capacitance same value pa rin nung capacitor.
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« Reply #18 on: June 21, 2008, 11:09:31 PM »
Quote from: rdpzycho on June 21, 2008, 10:01:04 PM
--+---| ( ---+--- ) |---+--
   +---|<----+---->|---+

two polar electrolytic capacitors connected to be one single nonpolar capacitor using two diodes. yung capacitance same value pa rin nung capacitor.

ganito ba yan: Huh
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mArKhAo
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« Reply #19 on: June 21, 2008, 11:12:16 PM »
parang ganun n nga.  Grin (ata)
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