Reply to thread

See what others are reading now! Try Forums > Current Activity

Message: <blockquote data-quote="eohl79" data-source="post: 1063863678" data-attributes="member: 117298">Caps have 20% tolerance as a tolerance rating to the Capacitance or uF rating variation. Usually as a factor with temperature, design, etc. As a rule of thumb when designing electronic circuits, caps used has to have at least 30% higher voltage rating than the actual supply.Bro levin818 is actually talking about voltage transients. The power dissipation from these voltage transients are very small but the high voltage peak/surge can cause some components to breakdown such as semiconductor and capacitors. Capacitors are basically two conductors sandwiching a dielectric insulation layer. To have high capacitance, the dielectric layer has to be very thin. However, on the other hand the thinner the insulation layer the more susceptible it is to dielectric breakdown and damage to the capacitors.The car alternator and voltage output from most cars do go through some voltage regulator. But take note that the voltage at that point is from the source. Long wires and cables are required to power up all the equipments and loads all over the car. Loads which does not consume current at a constant rate such as car aircond turning on/off, woofer kicking in every now and would consume a very high amount of current for a short instance during the on/off transition cycle. Long wires/cables equates to more inductance and acts as a form of storage (magnetic<>electrical) which would result in voltage spikes in the car electrical system. Usually a parallel load cap at the furthest end point of each load is what is required to minimize the voltage spikes - that's why I don't trust all the VS out there. Also, keep cable/wire short as possible. Isolate wire/cable from high load cables from low loads. Shield high load cables if necessary. Best if can have individual wire/cable layout for each load directly to the source (alternator/battery). Improve grounding, etc. If you understand the car electrical system well and fix the root cause of the problem (voltage spikes, transients, etc) you may not even require a VS. At some points I do agree a VS might help somewhat somehow but should be installed directly and closest to the load point rather than at the car battery and ciggy lighter port.Please be EXTREMELY careful when you design/wire up any circuit using a supercap! Supercap stores very high amounts of energy in a small package. Usually it is use as a backup power for small clock circuits that draw very little power. Since the supercap can store large amount of energy, charging the supercap has also got to be regulated usually with a resistor or constant charge circuit. You might destroy the supercap and cause a fire if done wrongly. Also, wiring up caps in parallel sums up the capacitance. Wiring up caps in series... calculate and figure out the eventual capacitance <img src="https://zerotohundred.com/forums/styles/default/xenforo/smilies/biggrin.gif"  class="smilie" loading="lazy" alt=":biggrin:" title="Biggrin    :biggrin:" data-shortname=":biggrin:" />If you want to know more, study electromagnetic interference (EMI) system design.</blockquote>

Verification

The Marketplace Latest

original WedsSport SA70 18x9jj offset +32 5H pcd...
- Started by david tao
- Chassis and Wheels
BRAND NEW original rare Yokohama ADVAN Racing RG4...
- Started by david tao
- Chassis and Wheels
original rare Yokohama ADVAN Racing RZ2 RZii...
- Started by david tao
- Chassis and Wheels
original rare Yokohama ADVAN Racing RG 16x7jj...
- Started by david tao
- Chassis and Wheels
original rare Yokohama ADVAN Racing RG 16x7jj...
- Started by david tao
- Chassis and Wheels
original rare Rays Volk Racing TE37SL 18x9jj offset...
- Started by david tao
- Chassis and Wheels
Spoon Sw388 18x10J+40 5H120 Rim Rims Civic FL5 Type R
- Started by aycy
- Chassis and Wheels
Spoon Crane Neck Wing Carbon Spoiler GT Wing Honda...
- Started by aycy
- Exterior and Body
Honda Jazz/Fit GK Mugen body kit
- Started by jeff6126
- Exterior and Body
original TWS Taneisya P1 racing 17x8.5jj offset +28...
- Started by david tao
- Chassis and Wheels

Posts refresh every 5 minutes

REMINDER : Air Filter Maintenance!

Everyone knows this topic at the back of their heads, especially for car enthusiasts like us! But do you remember to replace/wash them?

Recently, my FC has been doing from bad to worse. The usual 6.5km/L down to...

FS:air filter piping

for e4-e6
maybe can use on e7 onwards
stainless steal
rm100nett

Looking 4 Skyline owner fromKlang

Looking 4 Skyline owner from Klang

Hi,

Just wonder any skyline owner here from Klang, I have collect a few skyline owner here and would like to know more. We should come out and yam char if there is any...

Search

Enjoying Zerotohundred?

Log-in for an ad-less experience

Reply to thread

The Marketplace Latest

original WedsSport SA70 18x9jj offset +32 5H pcd...

BRAND NEW original rare Yokohama ADVAN Racing RG4...

original rare Yokohama ADVAN Racing RZ2 RZii...

original rare Yokohama ADVAN Racing RG 16x7jj...

original rare Yokohama ADVAN Racing RG 16x7jj...

original rare Rays Volk Racing TE37SL 18x9jj offset...

Spoon Sw388 18x10J+40 5H120 Rim Rims Civic FL5 Type R

Spoon Crane Neck Wing Carbon Spoiler GT Wing Honda...

Honda Jazz/Fit GK Mugen body kit

original TWS Taneisya P1 racing 17x8.5jj offset +28...

Posts refresh every 5 minutes

Recent Posts

2026 Vios HEV launched with Local Battery Assembly - UMW Toyota Motor

SPPF: The Future of Automotive Surface Protection - A Technical Overview

Upping Wira 1.5 MMC performance

Volvo Malaysia Launches Locally Assembled ES90 Electric Sedan

AMPANG mari!!ZTH member

Search

Online now

Enjoying Zerotohundred?