VFS-1 Pro C2 Specs
#1
****EDIT**** KO PROPO Team driver was able to answer my question.
Below is what i found out so far.
What i need: ON resistance: in ohms and if this unit can handle Lipo and has build in Lipo Cut off
The VFS Series C2 (Competition 2)
Key Features
• On Resistance: 0.00048 ohms
• Battery: nicad, nimh, lipo (no lipo cutoff)
• Control method: Changeable control
• The maximum peak current:3120A (FET specs.)
• Continuous, maximum current: 780A (FET specs.)
• Accessory: Ultimate Shotki Diode Single, Ultimate Condenser, 12 GA
• Size: 28.0x25.0x14.4.4mm (size of case)
• 18.8g in weight (The silicon wire excluded)
• Proper power-supply voltage: 4.8-8.4V (4-7 cells)
• Drive frequency: 0.9-12KHz (64 steps)
• Output voltage for receiver: 6V (input 7.2v)
• Output current for receiver: 2A (maximum peak)
Below is what i found out so far.
What i need: ON resistance: in ohms and if this unit can handle Lipo and has build in Lipo Cut off
The VFS Series C2 (Competition 2)
Key Features
• On Resistance: 0.00048 ohms
• Battery: nicad, nimh, lipo (no lipo cutoff)
• Control method: Changeable control
• The maximum peak current:3120A (FET specs.)
• Continuous, maximum current: 780A (FET specs.)
• Accessory: Ultimate Shotki Diode Single, Ultimate Condenser, 12 GA
• Size: 28.0x25.0x14.4.4mm (size of case)
• 18.8g in weight (The silicon wire excluded)
• Proper power-supply voltage: 4.8-8.4V (4-7 cells)
• Drive frequency: 0.9-12KHz (64 steps)
• Output voltage for receiver: 6V (input 7.2v)
• Output current for receiver: 2A (maximum peak)
Last edited by iPearl; 12-16-2008 at 06:25 PM.
#3
Tech Adept
iTrader: (1)
Joined: Mar 2007
Posts: 206
From: Fort Collins Colorado
i love how people still care about on resistance in speedies these days, since the oringinal novak cyclone the on resistance is less than a typical solder joint. so theoritcally the on resistance will provide more punch or power or efficency. but in reality is does nothing with current racing speedies just a number to sway one way or the other.
by the way, pal of mine has the corally version, you wont be dissappointed
by the way, pal of mine has the corally version, you wont be dissappointed
#4
I seem to get less Servo twitching when i punch it instantly, while the battery been used for half the run time.
It seems that the units with less resistant tend to run alot cooler, but thats jsut what observed during the years.
And i am being nitpicky, ... i just like to have low ohms.
Thats how i was tought to shop for 5 years now,
just added the programability option to the recent ESC shopping list.
Never had a Novak. Been a Tekin user, but willing to try out new things =D
I am not sure if this is or not is but...
The Haras Twister 2.1 = KO PROPO VFS-1 C1 | Haras Twister 2.2 = KO PROPO VFS-1 C2
I read it before in other threads, but below are the links to the exact settings if you have a flasher
to match the KO PROPO ECS to any of these driver setting or to your own like a Hotwire from tekin.
http://www.kopropo.com/america/index...d=20&Itemid=58
But i am trying to figure its specs of the cable adapter and figure out if i can build my own adapter for it.
Now the next trick question,

Does any one have that serial port adapter ?
And is willing to take it apart and tell me whats inside the serial port thingy ?
My guts tell be its direct leads to 3 wires that will plug into the ESC.
If any one has this and is from houston let me know...
It seems that the units with less resistant tend to run alot cooler, but thats jsut what observed during the years.
And i am being nitpicky, ... i just like to have low ohms.
Thats how i was tought to shop for 5 years now,
just added the programability option to the recent ESC shopping list.
Never had a Novak. Been a Tekin user, but willing to try out new things =D
I am not sure if this is or not is but...
The Haras Twister 2.1 = KO PROPO VFS-1 C1 | Haras Twister 2.2 = KO PROPO VFS-1 C2
I read it before in other threads, but below are the links to the exact settings if you have a flasher
to match the KO PROPO ECS to any of these driver setting or to your own like a Hotwire from tekin.
http://www.kopropo.com/america/index...d=20&Itemid=58
But i am trying to figure its specs of the cable adapter and figure out if i can build my own adapter for it.
Now the next trick question,
Does any one have that serial port adapter ?
And is willing to take it apart and tell me whats inside the serial port thingy ?
My guts tell be its direct leads to 3 wires that will plug into the ESC.
If any one has this and is from houston let me know...
Last edited by iPearl; 12-17-2008 at 12:45 AM.
#5

This is my theory of how the KO PROPO Software ICS (Serial Port)Communicates with the ESC
Computer >>> Serial Port adapter >>> unknown Cable wireing >>> 3 pin connector on ESC
Can someone that owns a KO PROPO Serial Adapeter verify that to me ?
I see the adapter has 2 screws on it, so it should be easy to diasmble and reasemble w/o damage.
Last edited by iPearl; 12-16-2008 at 07:46 PM.
#7
Tech Regular
iTrader: (3)
Joined: Sep 2005
Posts: 457
From: Winnipeg MB

This is my theory of how the KO PROPO Software ICS (Serial Port)Communicates with the ESC
Computer >>> Serial Port adapter >>> unknown Cable wireing >>> 3 pin connector on ESC
Can someone that owns a KO PROPO Serial Adapeter verify that to me ?
I see the adapter has 2 screws on it, so it should be easy to diasmble and reasemble w/o damage.
Along the way there is an IR transmitter and receiver circuit, this is the way most are done anyway. Most small device communication cables are made so no voltage will pass from one component to the other.
#8
Dirty racer, i never said servo was twitching with this esc. servo is fine
and its not twitching with any low ohms esc includind this one.
I am ignoring the IR Reciver Circuit for now since i wont be programming it for the reciever and transmitter.
I need to verify whats inside to exactly know if i can imitate the curcuit. Cant be that hard.
Thats circuit you talking about. is it basiclly just a fail save for no current feed back ?


Thats the comon circuit the use to create a one way handshake with a computer.
and its not twitching with any low ohms esc includind this one.
I am ignoring the IR Reciver Circuit for now since i wont be programming it for the reciever and transmitter.
I need to verify whats inside to exactly know if i can imitate the curcuit. Cant be that hard.
Thats circuit you talking about. is it basiclly just a fail save for no current feed back ?
Thats the comon circuit the use to create a one way handshake with a computer.
Last edited by iPearl; 12-17-2008 at 08:58 AM.
#9

Here is someone using another Serial to 3 Pin layout to flash a self powered Device.
Hence me thing the KO Propo ESC will be flashed the same way its hase to be powered by its own battery while connected to the PC, according to the manual.




