lørdag den 17. oktober 2015

HP SimonK 30A ESC Brushless Speed Controller BEC 2A for F450 F550 Multicopter

Well these two ESC´s just arrived in through the door, thought i would give you a quick review.
The specifications for this ESC are as follows:

Highest efficiency 100% N-FET design.
No low voltage cutoff.
No over temp cutoff.
Super high refresh rate, no buffering of the input signal, resulting in more than 490Hz response rate.
16KHz motor frequency, giving fastest response of the motor, and quietest operation as well (no 8KHz squeal).
Super simple, foolproof operation! Nothing to program other than the throttle range.

ESC Specs:
Cont. current: 30A
Max. current: 35A
Input Voltage: 2-4S lipo / 4-12 cell Ni-MH/Ni-Cd
BEC: 5V 2A (Linear mode)
Size: 55x26x8mm 
(length 145mm including power cable)

Weight: ~22g

Very neatly made.

It has a printed manual with safety precautions and product specifications and a wiring diagram, which is actually a + in my book, many of these cheap ebay ESC´s are often sent without.

The ESC output has three 3,5mm female banana plugs, so you will at least need to have the male version to finish off your wiring. 
I hooked Both ESC´s to my home made test bench and they both fired up. 

This is where i needed some expert advice so my Co-editor Sebastian helped me do a test of a Turnigy multistar 20Amp esc and compare it to the 30Amp ebay esc. This is not a very precise test but it gives an indication of how effecient it it. Using an Iphone program AKlite. You need both motors running at the Same RPM, place your phone on the table next to your setup, use the same battery and motor to do the test. In theory the battery should be fully charged in both tests. Then you rev up each motor, to the same meter reading on the graph of the AKlite, this will indicate that the motors are spinning at roughly the same RPM. Now you can compare both readings from the Watt meter. In this case the Ebay ESC ran the same amperage as the more expensive Turnigy, but drew slightly less watts at low RPM. Need to put a prop on and test again under load to see if it is still more efficient. Under load the Ebay esc was even more efficient, but again, this is a very rough test and not very accurate.

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