We didn’t have a couple of years
to put something into R&D.
We needed it here and now.
Jonathan Schwartz, Chief Product Officer, Voodoo Manufacturing
Voodoo Manufacturing was racing against time
to scale up its 3D printing business by automating
the loading and unloading of printer plates.
No other collaborative robot offered the
ease of integration now provided through
the Universal Robots+ platform.
The Brooklyn startup chose a UR10 robot with
a Robotiq gripper and has now tripled output,
enabling it to compete with injection molding.
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When placed on a mobile base, one UR10 robot
can tend one hundred 3D printers.
Seamless integration of gripper and robot arm
through plug & play UR+ platform.
Running the robot unattended overnight triples
testing demonstrated that the biggest loss
came from the snubber diode, which was
the hottest component at 51.3°C. The
solution helping to improve power loss
was to optimize the snubber resistor value
and reduce the leakage inductance in the
Maximizing Power Supply
Optimizing conversion in high frequency,
high current applications including
high voltage AC/DC adaptors can be
accomplished with planar magnetics. Bourns
set out to demonstrate how a customized
planar flyback transformer could maximize
energy efficiencies, and tested its design
in a variety of functions. By reinforcing the
insulation, through splitting the primary into
two PCBs and sandwiching a four-turn
secondary using triple insulated wire, the
transformer design provided the necessary
barrier between primary and secondary
windings. Furthermore, the leakage
inductance was reduced via splitting the primary, which resulted in
a 50 percent leakage decrease. Finally, Bourns tested its flyback
transformer on an AC/DC adaptor in DCM mode with 5 V output,
and it was shown to deliver a peak efficiency of 91.05 percent.
Figure 3. The design team used a simulation tool to explore the
transformer’s magnetic behavior in the USB power supply circuit under
various operating conditions. This simulated cross section of the transformer
reveals that the flux density in the center leg was well below saturation.