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Noctua NE-FD1 PWM IC

Noctua’s custom-designed NE-FD1 is a next-generation PWM fan driver IC that integrates Smooth Commutation Drive (SCD) technology for quieter operation and allows for ultra-low power consumption. Its superb linearity and security features such as locked rotor or reverse voltage protection make it an ideal driver IC for premium-class PWM fans.

PWM Output Signals Compared


Most conventional PWM fan driver ICs put out square signals that cause sudden torque impulses. These impulses can cause minute deformations of the entire fan structure which lead to audible “clicking” noises that are especially noticeable with many common PWM fans running at slower speeds. Adopting Noctua’s Smooth Commutation Drive (SCD) technology, the custom designed NE-FD1 PWM IC slows down the slew rate of the output signal in order to give a smoother, less sudden torque impulse. This way, PWM switching noises can be effectively suppressed and the fan runs even quieter, especially at low speeds.

Noctua’s NE-FD1 IC was not only fine-tuned for superior quietness, it has also been carefully optimised to allow for ultra-low power consumption. For example, the NE-FD1 based PWM version of the award-winning NF-R8, NF-B9 and NF-P12 fans consume 25-40% less power than their non-PWM counterparts. The NF-F12 120mm fan featuring the NE-FD1 IC draws only 0.6W, which is more than 50% less than many fans in the same speed range. This doesn’t only make it eco-friendly but also cuts down the electricity bill: Compared to a typical 2W fan, this allows you to save about half the price of the NF-F12 after 5 years of continuous use.


Noctua
01.08.2015 - PC Games Hardware 09/15 NH-D15
Test verdict: "Kompromisslose Qualität: Sieger dieser Marktübersicht und neuer Spitzenreiter im PCGH-Einkaufsführer ist ein alter Bekannter. Noctuas NH-D15 hat bereits auf dem letzten PCGH-Testsystem seine Qualitäten bewiesen und erfreut sich anhaltender Beliebtheit unter den Lesern. Wenn man genug Platz für den riesigen 2×-140-mm- Dual-Tower hat, findet man kaum einen besseren CPU-Kühler." (Torsten Vogel, PC Games Hardware 09/15)
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01.08.2015 - eTeknix.com NH-U9S
Test verdict: "If I’m building a compact HTPC, workstation or office rig, this will be the cooler I choose. It looks great, it’s easy to install, it’s got exceptional build quality and it’s quieter than a mouse." (Peter Donnell, eTeknix.com)
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31.07.2015 - videotesty.pl NH-D15S
Test verdict: "Wtedy NH-D15s jest zdecydowanie lepszym wyborem, aby schłodzić procesor i mieć wysoki komfort pracy." (Paweł Borysewicz, videotesty.pl)
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31.07.2015 - GreenTechReviews.ru NH-C14S
Test verdict: "Noctua NH-C14S — отличное обновление C14, в котором инженеры не только сделали более прочную и эффективную конструкцию радиатора, но и реализовали просто потрясающую совместимость с модулями оперативной памяти и верхним PCI-Express слотом на любой материнской плате. Ценителям C-Type кулеров Noctua NH-C14S просто обязан понравиться и быть главным претендентом к покупке!" Владимир Солонин, GreenTechReviews.ru)
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