The non-WRD approach:
In order to reach the level of performance
required by the specifications - the following “off-the-shelf”
hardware would be required. In this comparison, no allowance
has been given for development or assembly costs - this
is hardware costs only:
2) Servo amplifiers @ $287ea. $574.
Two-axis controller $1075.
Power Supply $120.
The WRD Solution:
ProductMaker, WRD designed and developed this control
with extraordinary low expense to the customer.
This is a custom control, build with standard and available
parts innovatively designed to control the two PM motors
with one H-Bridge to lower costs.
Control (complete, including amplifier) $650.
Cost (complete): $1025.
Go to Air
Pillow spec sheet for another side-by-side comparison.