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

Mugen MS-C Full Bucket Seat Civic Type R FL5 FK8
- Started by aycy
- Engine and Performance
Boost Logic Boostlogic Oil Cooler Kit R35 GTR GTR35
- Started by aycy
- Engine and Performance
Linney IHI 800WHP Turbo Kit R35 GTR35 GTR
- Started by aycy
- Engine and Performance
Varis R35 GTR GTR35 Front Bumper
- Started by aycy
- Exterior and Body
HKS Spec R Titanium Exhaust with Y pipe R35 GTR GTR35
- Started by aycy
- Engine and Performance
2016 BMW 120i LCI M Sport F20 1.6 Auto
- Started by aycy
- Cars for sale
GR Yaris H&R Front Rear Anti Roll Bar
- Started by aycy
- Chassis and Wheels
BBS RI-A 10J God Spec FK8 FL5 Honda Civic Type R...
- Started by aycy
- Chassis and Wheels
Rays Gram Lights 57CR GR Yaris Subaru Impreza Rim...
- Started by aycy
- Chassis and Wheels
2019 Toyota FORTUNER 2.4 VRZ 4X4 (A) Diesel
- Started by aycy
- Cars for sale

Posts refresh every 5 minutes

2017 Honda Civic hatchback makes Euro debut - 3 Turbo Engines!

https://www.zerotohundred.com/wp-content/uploads/2016/09/2017-honda-civic-hatchback-for-europe-1-e1474252558124-850x427-700x352.jpg

The 2016 Paris Auto Show is set to start on Sept 29, but Honda couldn't wait to...

r32 tein super street

any body noe where 2 purchase? any shop dat keep stock?

and where dat keep stock, original parts for r32.... interior n exterior parts...

WTS: Apexi filter kits for CT9A

few months old filter kits for evo 7-9.. with apexi adaptor and apexi sheild
selling for $380 only..
interested do pm me..

thanks