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AC DC Converters

An AC DC converter is a device that converts alternating current (AC) electric power from a source such as an outlet or generator to direct current (DC). It is commonly used in a variety of applications, such as powering electronic devices, charging batteries, and providing a direct connection to a load. The most common type of AC DC converter is a switched mode power supply (SMPS), though there are several other types.

2868622 Application Field and Working Principle

The 2868622 is a type of switched mode AC DC converter. It is designed for use in a variety of applications including automotive, appliance, and industrial. The essence of switched mode power supplies is the conversion of AC voltage, to a lower, more manageable DC voltage. The 2868622 converts the AC voltage to a single intermediate DC level, usually 12V. Once it converts the voltage, the 2868622 controls the shape of the voltage waveform with the use of an internal Pulse Width Modulation (PWM) regulator and an output electromechanical switch, typically an N-Channel MOSFET. By controlling the pulse width of these signals, the 2868622 is able to control the average power output by controlling the on-time duration. This method of voltage conversion is one of the most efficient and widely used technologies for AC DC converter applications.

To further explain the working principle of the 2868622, the internal PWM regulator first sets the frequency of the voltage pulse waveform. The output circuit then senses the output voltage and adjusts the pulse width, which in turn affects the average output voltage. The output circuit can then be programmed by the user to be able to maintain the same voltage level regardless of changes in the input voltage or output load. This is achieved by the use of feedback control, where the output circuit monitors the output voltage and adjusts the pulse width accordingly. This process is repeated many times a second thereby allowing the 2868622 to produce stable DC power.

In addition to the main features of the 2868622, several other features exist that make it a suitable choice for many applications. These features include a wide input voltage range, built-in current limiting, thermal protection, and adjustable output voltage. Furthermore, the 2868622 is a highly integrated part, meaning that it can reduce overall system complexities and component count.

Conclusion

The 2868622 is a type of switched mode AC DC converter, which is widely used for applications such as automotive, appliance, and industrial. It uses internal pulse width modulation (PWM) to control the shape of the voltage, effectively converting AC voltage to a lower DC voltage. The 2868622 also features several additional features such as wide input voltage range, current limiting, thermal protection, and adjustable output voltage. This allows it to be used in a variety of applications, making it a highly sought after converter.

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