DIY Voltage Stabilizer

[jaywat]

:) thanks for the info..

 

[khguan]

then u try again... pls take note dat ur pic file size must not be too big...

previously up to 80k onli... now i duno...i think still de same..

 

[winlose2582]

hi.bro...
Is the voltage value of cap bigger is better???like using 25V instead of 16V?? got any difference in stabilizer>???
Wat i know is, the voltage value of cap need to greater than the power supply(battary) value....
since our car battary just 12-14V....

 

[khguan]

well.. using 25V will do... however using 16V is also ok.. it works de same...

some ppl would not recommend using 16V caps cos it is considered quite close to de margin..

well... our car power supply system is up to about 14.4V.. but most cars is about 13.xV to 14.0V... so it is still safe using 16V caps.. make sure de caps r not exposed to extreme heat... it may just "kembang" n burst...

use those 105C caps for better heat protection..

 

[levin818]

Hello khguan and votech,

Would u please tell me what is your ripple voltage (in r.m.s.) measured across your car battery's terminal, b4 and after installed your VS (with engine at idling and all load turn off)?

Please state your test car model, cc, year make, battery's age for ref.

Tks

 

[khguan]

err.. i duno how to measure dat wor.. i onli know some basic electricity concept n laws..

actually wat is "ripple voltage"

well.. my car battery is kinda old.. n de voltage is kinda low n fluctuating.. so it is kinda hard for me to give an exact n accurate voltage reading....

 

[winlose2582]

So, anyone can tell me the price info for the 4700uf 16V and 4700uf 25V??? and the Temp for 105C and 85C in 4700uf in 16V...
wanna do the compare...
Thanks!!!!

 

[khguan]

4700uf 16V bout RM1.80 per pc for 85C, RM2.xx for 105C

if buy a lot then cheaper... if buy at jalan pasar cheaper..

 

[drexchan]

have you got your lawyer informed about your action and the consequences that might appear?

 

[khguan]

well i think it is still ok wit dat pics.. cos it is not showing any brand.. n i cant c wats IC no. is dat...

 

[ufo]

Originally posted by khguan@Mar 28 2005, 23:45
well i think it is still ok wit dat pics.. cos it is not showing any brand.. n i cant c wats IC no. is dat...

[snapback]848721[/snapback]​

ok kh.. i hope those pic helps u abit, well i dunno anything bout any lawyers , was jus tring to help :)

 

[jaywat]

huh :huh: wtf?? what lawyer :o

 

[votech]

levin818, let me repeat ur question:

Ripple voltage in RMS when engine is idling (approx 800 to 1000 RPM) and no load turned on...is that what you want to know?

khguan...u might need a scope to help u out to measure the ripple voltage in RMS (easier to visualise this way)... :lol:

 

[xtorm]

Originally posted by ufo+Mar 29 2005, 00:13 --><div class='quotetop'>QUOTE(ufo @ Mar 29 2005, 00:13 )</div><div class='quotemain'><!--QuoteBegin-khguan@Mar 28 2005, 23:45
well i think it is still ok wit dat pics.. cos it is not showing any brand.. n i cant c wats IC no. is dat...

[snapback]848721[/snapback]​

ok kh.. i hope those pic helps u abit, well i dunno anything bout any lawyers , was jus tring to help :)

[snapback]848795[/snapback]​

[/b][/quote]


post deletedlor.dun worry abt lawyer no more..:P

 

[khguan]

Originally posted by votech@Mar 29 2005, 09:47
levin818, let me repeat ur question:

Ripple voltage in RMS when engine is idling (approx 800 to 1000 RPM) and no load turned on...is that what you want to know?

khguan...u might need a scope to help u out to measure the ripple voltage in RMS (easier to visualise this way)... :lol:

[snapback]849825[/snapback]​

hmm... i don have a scope wor... so i cant measure de ripple voltage lor.. :P