AC FANS＆DC粉丝之间的差异|金宝搏官网mg金宝搏官网Pelonis Technologies，Inc。

直流风扇，或DC fans固定值,与一个潜在的动力as the voltage of a battery. Typical voltage values for DC fans are, 5V, 12V, 24V and 48V.

相比之下，交流式风扇或ac粉丝那are powered with a changing voltage of positive and of equal negative value. In general, this changing voltage has sinusoidal shape. Worldwide, the usual value of this sinusoidal voltage may vary in size and in frequency, such as 100VAC, 120VAC, 200VAC, 220VAC, 230VAC or 240VAC, and with frequency (cycles per second) of 50Hz or 60Hz.

In the past, big AC fans were typically less expensive compared to big DC fans. Today however, their price difference is negligible due to their payback advantage. We will try to point out differences between the above fan types, to help you choose and purchase the correct fan type for your application.

DC粉丝的优缺点

DC粉丝的优缺点 DC technology has become much more sophisticated in recent years, and it can now be applied to both residential and industrial ceiling fans. DC fans have motors that rely on permanent magnets in order to attract and repel a rotor around the axis using electronic switching. DC technology is much newer than AC technology, which means there are fewer options available.

PRO: Consumes less power

DC风扇被广泛认为是最有效的风扇类型。它们比AC球迷消耗明显更小的功率。事实上，DC风扇的能量减少了70％，以产生与传统交流风扇类型相同的输出。

This means, that a 25-watt DC-driven yields the same results as 100-watt AC fan. This is ideal for commercial settings, like restaurants, allowing you to keep fans running all day without incurring astronomical electric bills.

PRO: Minimal electromagnetic interference

Due to low power used as well as the application of sophisticated electronic switching, the electromagnetic interference of DC fans is minimal. Sensitive electronic devices often use DC fans to prevent electromagnetic interference.

例如，计算机应用和设备依赖于DC风扇，防止过热，同时仍然最小化可能对敏感应用产生负面影响的电磁干扰。

Pro：声学悄悄

DC风扇利用电子换向电动机（ECM）的新型（SIN180）。这些电机不仅是超高效的，它们也非常安静。因为它们如此安静，DC风扇是医疗器械，电信交换机或汽车娱乐系统等应用的绝佳选择，其中噪音可能是一种滋扰。

PRO：较低电压

DC fans generally use less电压比AC球迷。大多数DC风扇是低压风扇。例如，您通常可以找到5V，12V和24V版本的DC风扇。较大型号的DC风扇（如119mm至172mm的风扇型号）通常为48V。相比之下，大多数AC冷却风扇型号有115V，电188d金宝搏的网址188体育在线官方压更高。较低的电压也使DC风扇可能不那么危险。

Pro：防水

这DC fanscan be used in applications of severe environmental conditions. It is imperative to employ a reliable, high-quality water-resistant model to ensure the safety of your equipment and staff.

阅读更多：用于恶劣环境的防水DC风扇

金宝搏官网mg金宝搏官网Pelonis Technologies，Inc。（PTI）一直在设计，开发和制造业界领先交流轴向风扇无刷直流风扇超过25年。这包括广泛的恶劣天气和防水风扇，可提供无与伦比的灰尘和防水，同时符合军事和美国宇航局材料规格，USP认证和UL认证。

我们的恶劣天气风扇采用生态友好的专有保形涂层，具有优异的性能和耐腐蚀性，使风扇能够轻松承受灰尘，水分，水暴露，甚至全水浸泡。我们的直流风扇也经过严谨的真空密封过程，使它们能够在浸没过程中运行。

*PRO:Intelligent Motion Control***

这use of Intelligent Motion Controls in select model DC brushless fans and blowers has already arrived. With Intelligent Motion Controls, the movement of air is now smarter.

这inclusion of full-wave-in-board circuit design and multiple features leaves no doubt that intelligence has enhanced air movement.

PRO: Variable flow

With minimal additional cost, the DC fan can offer a variety of speed control functions, so that the fan can meet the airflow target of a given application. The fan can be controlled by:

Voltage
Current
Temperature
Resistance
PWM信号

By controlling the fan speed according to what is needed, the life of the fan can be increased and its acoustical airflow noise can be kept to the minimum necessary.

CON：可能需要AC到DC转换器

这ac粉丝are powered by an alternating voltage source. The DC fans are powered by a constant voltage source. This means that, the DC fan must have an AC to DC converter, either externally or included internally in the DC fan to convert AC to DC Voltage to power the DC fan.