Sorry guys i have been away for a while and havent posted as of some serious family business as well as hobbywing business so for that i apologise.All good now .


A normal Operation of any high current ESC (known as controllers of any kind) may it be for radio model cars or even washing machines,dryers lamp dimmers or even audio amplifiers etc the pulse width modulation in which is used (a high speed switching function which could be in the 10s of khz so very fast)which inturn controls the function of the motor produces an alternating voltage waveform (or ripple) onto the battery voltage (Back emf). The amount of ripple current is dependent on the inductance of the motor(motor windings low turn motor will produce more ripple current thus more heat the faster the capacitor chargers and discharges).

A large power low ESR capacitor is used to smooth this ripple current out so that the average voltage available to the ESC is very close to the battery voltage(equalization of the voltage for the esc and what's available from the battery). This cap also in many cases will protect the esc from reverse polarity and damage to the electronics etc .A low temp in the cap will also produce slightly more rpm and punch (torque).

We also use trans supressors to reduce the risk of voltage spikes to the esc and also known as clamps and some high frequency decouplers to filter out any radio interference also known as (noise/Distortion).

Caps must be used no matter what and warranty will be void if not used .

Happy racing guys and ill see most of you on friday the 25th at the TITC thailand .

regards Angelo