Thread: Noctua Declares modern PWM Fans

Elaborating its picture of premium quality rather fans, Noctua now declared PWM editions of its renowned NF-P12, NF-B9 and NF-R8 fans. Having received more than 100 awards and recommendations from the international press, the classic NF-P12, NF-B9 and NF-R8 fans assisted to determined Noctua’s reputation as a top-tier producer of premium grade rather cooling part. The fresh PWM editions construct on the proven plan and characteristic Noctua’s novel NE-FD1 IC for completely automatic control and ultra-low ability consumption.


“Our customers have been asking us for PWM edition of our fans for a long time, but the in build PWM fan driver ICs easily were not up to our quality standards”, explicates Mag. Roland Mossig, Noctua CEO. “With our NE-FD1, we have just acquired our custom-planned IC that permits us to construct PWM fans that consume low power and stay quieter at low velocities.”


Most mainstream PWM fan driver ICs put out square signals that cause sudden torque momenta. These impulses can cause moment deformations of the full fan structure which lead to hearable “clicking” sounds that are particularly



detectable with many basic PWM fans functioning at slower velocities. Adopting Noctua’s Smooth Commutation Drive (SCD) tech, the custom planned NE-FD1 PWM IC slows down the slew rate of the output signal in order to give a smoother, low sudden torque impulse. This way, PWM switching sounds can be in effect suppressed and the fan functions still more silent, especially at less velocities.


Noctua’s NE-FD1 IC was not just well-tuned for superior quietness, it has too been carefully optimised to permit for ultra-less power consumption. As a solution, the fresh PWM example consume 25-40% low power than their non-PWM similitudes.


Entire example arrive with Low-Noise Adaptors, 30cm cable extensions and 4-pin y-cables that permit to link a second PWM fan to the similar fan header for automatic control. Skilled with Noctua’s signature SSO bearing and topped off with a Six years producers warranty, the NF-P12 PWM, NF-B9 PWM and NF-R8 PWM are a proven premium option for the highest requirements.