DIY Voltage Stabilizer

[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 -->
QUOTE(ufo @ Mar 29 2005, 00:13 )
--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

 

[levin818]

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]​

Hi votech,
Yes, that is the info i need. I want to know how effective the VS can filter the ripple voltage at the supply line.
My almost 2 yr old battery, with 7 points grounding kits, gave me 250mV RMS at above condition. I am wondering how my ECU can work effectively under this kind of situation.

khguan,
perhaps u can use your DMM to get the reading. Just switch the selector to "AC Voltage" can do.

Tks folks!

 

[khguan]

oh.. ok... when got time i test... B)

 

[ufo]

Originally posted by levin818+Mar 29 2005, 19:49 -->
QUOTE(levin818 @ Mar 29 2005, 19:49 )
--QuoteBegin-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]​

Hi votech,
Yes, that is the info i need. I want to know how effective the VS can filter the ripple voltage at the supply line.
My almost 2 yr old battery, with 7 points grounding kits, gave me 250mV RMS at above condition. I am wondering how my ECU can work effectively under this kind of situation.

khguan,
perhaps u can use your DMM to get the reading. Just switch the selector to "AC Voltage" can do.

Tks folks!

[snapback]851648[/snapback]​

[/b][/quote]
hi levin, mayb u like to try this simple calculations...
to find ur rmsvoltage, try this..
Vrms= 0.707*Vpeak where Vpeak should b ur maximum voltage. ;)

 

[levin818]

Originally posted by ufo@Mar 29 2005, 21:06
hi levin, mayb u like to try this simple calculations...
to find ur rmsvoltage, try this..
Vrms= 0.707*Vpeak where Vpeak should b ur maximum voltage. ;)

[snapback]851827[/snapback]​

Tks ufo.
My battery's ripple voltage is 250mV RMS at idle with all load turn off.
Measured by TES DMM.
I am wondering with VS it can be reduce to what level.

 

[n305er]

Wah Wah... You guys talk until soo "Deep" ah? O.o

I just took my car out from Penang to Kedah yesterday... Compared to last time without the VS... now I can overtake other cars a whole lot easier then last time...

Perhaps if I remove all my DIY stuff and replace them with good commercial products, it'll be better?

 

[khguan]

wah.. looks like my VS is really working on ur car.. :lol: :P

wat DIY stuff u have? until wanto remove it for more performance? to me not always comercialised products are better... they onli cost more...

if u can DIY something dat is using de same concept n using similar materials... then it is fine.. unless ur DIY quality is bad lar...

 

[n305er]

Only DIY Groundings and VS mah.

I think it's messing up with my air cond... either that or my Compressor want to "Kong" already... :(

 

[khguan]

aiya... dat wun mess anything up lar.. ur grounding cables arrange properly lar..

ur car stuff also got lifespan mah...

 

[jaywat]

Originally posted by n305er@Mar 30 2005, 09:58
Wah Wah... You guys talk until soo "Deep" ah? O.o

I just took my car out from Penang to Kedah yesterday... Compared to last time without the VS... now I can overtake other cars a whole lot easier then last time...

Perhaps if I remove all my DIY stuff and replace them with good commercial products, it'll be better?

[snapback]853041[/snapback]​

Wah...so big effect meh :D

 

[khguan]

this guy is helping me to "tou mai" (pour rice)... condeming my product..
watch ur words dude.. do u know wat u r toking about?? many ppl have used my DIY VS n claim good feedbacks.. n proven useful...