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Old 12-23-2006, 10:07 AM   #16
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Just pick the car up and punch the throttle. let it come to a stop on its own. Then puch it again and hit the brake hard. You should feel the car shift in your hand and also see the tires stop instantly.

Capacitor's function - the easy definition - three small ones on motor help reduce glitching.

Capacitor's function - the easy definition - the larger one on ESC keeps steering servo powered when you surge throttle. This keeps your car from drifting left or right.

Schottky Diode's function - the easy definition - helps keep brakes from fading when braking alot. If the ESC's internal schottky diode gets hot then add one on the motor between positive and negative terminals.

The post above are accurate but a bit complex too understand for a beginner as you state you are. Hope this makes it a bit easier to understand. Good luck, Paco.
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Old 12-23-2006, 10:36 AM   #17
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When I sniffed the case, it smelled a bit burny. When I looked inside, I saw a small burn mark and a black piece of plastic in that part. It was a brand new 8T ESC
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Old 12-23-2006, 10:48 AM   #18
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Can't you just return it for exchange?
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Old 12-23-2006, 11:00 AM   #19
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I ordered it from RC mart.
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Old 12-23-2006, 11:11 AM   #20
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Never dealt with them. Unaware of thier policies. Sorry.
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Old 12-23-2006, 01:53 PM   #21
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A schottky diode has no effect when the brakes are on, only when the car is coasting with the throttle on neutral. In this case, the gates from both the power and braking FETs are closed, but the motor is providing a current, and it has to go somewhere. So it goes through the FETs even though they are closed. This causes them to get warm, and sometimes damages them, the most powerful the motor, the higher the current and thus, the more heat would be generated.

Now, FETs don't like getting warm, as it decreases the speed at which the FETs can change state (states being "gate open" and "gate closed", or power on, power off), which in return, makes the motor fee like it goes softer, both on braking and acceleration.

By putting a schottky diode, the current has an easier path to a closed circuit than through the FETs, so the current doesn't go through them and they keep cooler and undamaged.

When braking, the motor is in short circuit since the Brake FETs are open so the schottky has no effect.

A SCHOTTKY DIODE DOESN'T AFFECT BRAKING IN ITSELF, WON'T MAKE IT MORE POWERFUL, ONLY MORE CONSISTENT DUE TO THE FETs NO GETTING AS HOT.
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Old 12-23-2006, 04:04 PM   #22
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im planning to a but a schottky diode and put in into my motor tabs... what diode i will buy?? and is there any ratings like volts, etc??

and if i will install the small capacitor into my motor how many should i install on it?? do you think the small capacitor like 0.1uf has negative and positive?? how can i notice the positive and negative?
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Old 12-23-2006, 04:41 PM   #23
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the positive is always connected to the striped side of the diode.
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Old 12-23-2006, 07:46 PM   #24
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Quote:
Originally Posted by MK_Arbiter
A change on topic... I got my new Moped ESC today but something seems to be wrong with the brakes. I set it up properly but the brakes arent working. The light for the brakes is on, but the brakes are not engaging.
or maybe the brakes is not 'ON' literally(in the E.S.C.).. because there are esc's when you break, the light turns on but the break itself is not on.. do you get me?

Just my 2 cents..

HTH's
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Old 12-23-2006, 08:23 PM   #25
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How do you suppose I turn it on?
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Old 12-23-2006, 11:21 PM   #26
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Quote:
Originally Posted by MK_Arbiter
How do you suppose I turn it on?
by re-programming(re-setting) the e.s.c again with the default setting of your transmitter..
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Old 12-23-2006, 11:31 PM   #27
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I did that like 10 times and no go. =P I'll face the fact that it's fried now. It was a cheapo for 40$ anyways. and my mom payed for it. shhh don't tell her.
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Old 02-05-2007, 04:34 PM   #28
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i will buy some diodes for my motor at our local electronics shops.. what diode i will ask?? wattage? amps?
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Old 02-05-2007, 07:57 PM   #29
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Quote:
Originally Posted by nikkiesteban
i will buy some diodes for my motor at our local electronics shops.. what diode i will ask?? wattage? amps?
You'll never go wrong with the novak super Schottky.
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Old 02-06-2007, 02:56 AM   #30
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Quote:
Originally Posted by MK_Arbiter
How do you suppose I turn it on?
Ive had this problem before, and I found out that me rear diff was too loose.
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