Capacitors, Why Should They Be Used?

[jungleistmassiv]

Hi guys and girls

Have got myself a mtroniks viper rv max ESC to run my 10T motor. The user guide for the ESC says i need to fit 10uF capacitors from the -ve terminal to the can, and from the +ve terminal to the can. I understand this prevents feedback and interference to the ESC, but are there any other reasons? Must they be fitted? I have had a look about on maplins for some, but am confused by what I should be buying!!!

If someone could look through this list and show me what i need I would appreciate it

http://www.maplin.co.uk/Search.aspx?criter...rce=15&SD=Y

Thanks in advance

Rich

[terry.sc]

Hi Rich

The reason for the capacitors is to reduce radio interference from the sparking in the motor, which makes the radio glitch and you to lose control of the car. What motor do you have fitted, as most motors come with capacitors already built in to them.

Those capacitors are all 10uf, you only need 0.1uf (also known as 100pf) capacitors and the ones you want are here http://www.maplin.co.uk/search.aspx?MenuNo...=y&doy=4m11 The resin dipped 100pf ones have the more durable case.

[jungleistmassiv]

ok mate, thanks very much for that, it all makes sense now

http://www.modelsport.co.uk/?CallFunction=...mp;ItemID=23578

This is the motor I will be fitting. Looking at the end of the motor, I can't see any capacitors fitted, could they already be inside the motor?

Thanks

Rich

[terry.sc]

Yes, that motor has surface mount capacitors built in, so you won't need to fit any more to the motor.

[jungleistmassiv]

ok mate thats great, cheers for that!!!