controller mods

Hi all!

Just went through Chris Fosts and Grah´s websites once more and they´re describing how your regular controller works. You have your variable resistor, transistorized or PWM(electronic) controller. These controllers don´t increase track voltage. Max voltage available to a car is the same as voltage supplied for the controller.

Slot-Tech may be a different story. They say that their controller has:
"Full Power Boost, enables extra power to be fed to the motor at full throttle (Over and above the tracks standard power output)."
This propably means that there is a switch mode power supply inside their controller. This power supply increases the voltage supplied to the car. You could have say, 16-20V power boost even though track nominal voltage is 12V.

Dark side of the slot racing.

Julius

Hi!

GRAH1, I really would like to believe that it´s just a cap, but Slot-Tech sales speach indicates that "Full Power Boost feature enables extra power over and above tracks standard power output". You can not achieve this just with capacitor. Other sentence that suggests existence of electronic booster is: "This feature will only work with mains transformer power supplies". Why would filtering capacitor care which supply is feeding it? BUT if you have built-in booster circuitry it would need extra power for stepping up the voltage, thus giving extra boost and "speed increase of 3000-4000rpm depending on the type of motor used". Also such rpm increase is impossible to achieve with plain filtering capacitor.

Okay, I may be wrong, but either the sales speach is extremely exaggerated or controller really has some sort of built-in power boost electronics.

Owners of Slot-Tech controller can confirm or decline. If you find an IC chip and an inductor next to the IC inside controller/box, that means booster circuit exists If there are no extra IC´s or prined circuit boards inside, then I´m wrong and my apologies to Slot-Tech.

Julius

Okay,

My apologies to Slot-Tech and others for suspecting this controller. I just couldn´t believe that all these good things are achievable with a simple filtering capacitor. Anyway I´m going to try n build just the type of electronic booster that I was talking about, it´s that other thread "electronic turbo".

Cheers!

Julius

Hi!

Mmmm... Dark Side - so tempting.... But seriously! One of the reasons I came back to Slothobby is that I can combine it with my electronics-hobby.

Julius

PS.
Those schematics coming up, I am willing to share.

PPS.
Added braking feature this morning, now I'm able to descelerate from warp speed to regular speed.