SPLFA75F-12-C

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AC DC converters, or known as AC power converters, are used to convert alternating current (AC) to direct current (DC). AC power is found in most mains electricity, and is used in almost all electronic components from computers and phones to radios and televisions. The SPLFA75F-12-C AC/DC power converter is an example of such a device. In the following sections, the application field and working principle of the SPLFA75F-12-C power converter will be discussed.

Applications

The SPLFA75F-12-C is designed to be used as a DC power converter in general purpose applications. Its small size (approximately 81 x 77 x 40.5mm) and light weight (4.2oz) make it ideal for applications where space is at a premium, such as embedded systems, industrial control, automation and medical equipment. It is also suitable for powering small to medium sized LED lighting systems.

The SPLFA75F-12-C can accept a wide range of AC inputs (between 90-264VAC) with active power factor control and offers output voltages of 5V, 12V and 24V. The power factor is greater than 0.9 at a full load, ensuring maximum power efficiency. It also has short-circuit, over-temperature and over-load protection built-in, making it a reliable and robust solution for any application.

Working Principle

At the heart of the SPLFA75F-12-C is a high frequency PWM (pulse-width modulation) converter circuit, which is used to convert AC to DC. This circuit works by activating MOSFETs (metal-oxide-semiconductor field-effect transistors) at a very high frequency (typically up to 500kHz). When the MOSFETs are activated, current is drawn from the AC line and is converted to a DC voltage.

The AC input is then rectified using diodes and smoothed through a capacitor, which filters the current and provides a constant DC output. The output voltage is then regulated using a switching regulator to keep it at the desired level. If the output voltage deviates from the desired level, the regulator will adjust the switching frequency of the MOSFETs to bring it back to the desired level. This process is done with extremely high accuracy, ensuring that the voltage remains stable, even when load conditions changes drastically.

The SPLFA75F-12-C AC/DC power converter is a reliable and cost-effective solution for many general-purpose applications. Its wide range of input voltages, active power factor control and protection features make it an ideal choice when powering many types of electronic systems.

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