03-05-2022 | New Yorker Electronics | Subs & Systems
New Yorker Electronics now offers Orion Fans' new series of microcontroller-based, Reversible Flow Fans rated up to IP68. By using PWM signals to control fan speed, these fans offer a solution for challenging cooling demands. Fan speed and airflow direction control can now be delivered with one fan without supplementing excess wires or circuitry.
Previously, two fans were needed if the designer wanted to achieve two airflow directions. This arrangement added cost to the BOM, needed more area in the design to accommodate both fans, increased maintenance requirements, and lowered product reliability.
"By utilising the newest microcontroller-based designs in the reversible flow fans, we provide engineers the advantage of both directional flow and speed control in a single fan, a feature that we have been receiving more and more requests for," says David Luna, VP of marketing for Orion Fans.
In typical fan speed control, PWM control gives a fixed-frequency AC square wave signal to the fan, and the waveform's duty cycle is changed to match the desired speed. Reversible fans extend this control paradigm by segmenting the PWM duty cycle curve into "Forward" versus "Reverse" regions. This segmentation still provides for speed control over a condensed duty cycle range while allowing control of the direction of flow without needing further control wires or circuitry. A simple firmware or software change in the customer's equipment aids direction control with minimal disruption of industry-standard control assumptions.
The fans are currently offered in 120mm and 172mm packages, in 12V, 24V, 48V and 60V versions.
