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AC DC Converters

The term ‘AC/DC converter’ is used to describe a device designed to convert alternating current (AC) electricity into direct current (DC) electricity. This conversion is needed to operate most electronic devices, such as TVs, laptops, and cell phones, which primarily use DC current. Choosing the correct AC/DC converter for a device typically boils down to understanding the device’s application field and working principle.

The application field of a device refers to the environment or purpose for which the device is intended to be used. It is important for the user to be aware of the application field of the device to ensure that the correct power converter is selected. In most cases, the application field is specified by the device’s manufacturer. Common application fields of AC/DC converters include consumer electronics, automotive, medical, power system, and industrial.

The working principle of an AC/DC converter is likely the most important factor to consider when selecting one. Generally, AC/DC converters have two basic types of working principles: linear and switch mode. Linear converters are used in devices whose current fluctuates over time, such as with the power supply of a TV or computer monitor. These types of converters are designed to offer superior efficiency, noiseless operation, and longer life. On the other hand, switch mode converters are best suited for power-hungry devices such as mobile phones and other electronic devices. Switched-mode converters offer improved power efficiency, reduced size, and lower material costs.

When selecting a converter to power a device, it is important to consider the device’s application field and working principle. The application field of the device will determine what type of converter is necessary for its operation, while the working principle will determine how efficient the device’s power supply is. To ensure the appropriate performance of the device, it is best to select a converter that is designed and rated for the specific application field and working principle of the device.

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