These are for newly hand assembled Infineon 12 FET Infineon 72v programmable brushless controllers I am selling. They are new and never used. It is originally designed for brushless motors with damaged hall sensors. You can now revive any damaged hall sensor motors and put your ebike back on the road.

The way it works is controller has a unique sensorless module to convert pulses to voltage and feed the appropriate emulated signal to the MCU (Motor Control Unit).
[url=http://img191.imageshack.us/i/sensorlessmodule.jpg/][img]http://img191.imageshack.us/img191/4213/sensorlessmodule.jpg[/img][/url]

There are other reasons for utilize the controller below:
1. You want to make more space in the motor axle for for thicker phase wires
2. You hate hall wires
3. You have a RC motor (Turnigy & Astro in this case) but do not need high speed at more than 2200 RPM
4. You want to try something different
5. You think sensorless is cool
6. You are unable to figure out how to wire the sensor wires to the controller with the correct sequence
7. You want to have a backup controller just in case
8. You think sensorless is more reliable since no hall sensors and/or wires can get damaged easily by heat & water

One unique feature of this controller is that it has an additional speed sensor circuitry built-in with an extra blue wire for output. It is to be used with the scooter style electric bike and electric scooters that have a speedometer in the dashboard.

This version also uses lock washers to secure the FETs internally and the heat transfer bar outside to place tension against a nut after tightening. It is also to help prevent the nut from loosening. The FETs will get overheated and damaged when detached from the heat-sink which used to be the case from the previous designs.

Below is the specification:
Model:123077SL-MII LYEN EDITION
Start immediate controller
Chipset: XCKJ8B116A (same chipset being used as in the 18 FET controller)
Circuit board version: EB312XC
12 x genuine IRFB 3077 MOSFET N-CH 72V (tested up to 80V before damage) for more information about the FET, click the link below:
[url]http://parts.digikey.com/1/parts/1021134-mosfet-n-ch-80v-140a-220ab-irfb3077.html[/url])
72V battery optimized (for higher or lower voltage & current such as 24V-80V, you may need to change the resistor network to avoid damage to the LM317 linear voltage regulator)
45A is the current rate (for higher current, you may need to beef up the trace, shunt, and reprogram it via the software)
Low voltage cut-off: 48v
Battery and motor phase wires gauge size: 12AWG (High voltage capable wires equipped)
Dimension: 6.2" x 3.4" x 1.75" (155mm x 87mm x 45mm) plus mount extensions
Total weight: 515 gram

In case you want to upgrade it later on to became Methods-proof, Steveo-proof, and Doctorbass-proof, you may need to upgrade the FETs to 3077 to achieve higher current as well as voltage above 80V. We have a friend here Steveo who do awesome controllers upgrade for a fee. :)

[size=200]$149 USD free ground shipping in the US & Canada. For other locations, please PM or email me at LYEN@HOTMAIL.COM. I accept PayPal, cash or money order. The controllers will be shipped out from me in San Francisco, California, USA. I will provide a tracking number and ship it out as soon as I have received the fund.

For only $10 more, I can include the the following:
1. CA connector
2. USB-TTL 5 pin connector (for use with the USB-TTL adapter that is sold separate)

I also have the USB-TTL adapter for adjust and alter the controller settings on your computer. It has the extra 5 pin plug and a "SEND" button. It is also compatible with Windows XP/Vista/7 32/64 bit operating system (real 32/64bit drivers). $15 with purchase, $20 if purchase separately.

You may click on the PayPal Buy It Now link below: