LEA75F-9

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AC DC Converters

In today’s technological society, AC/DC converters are an integral part of many devices and systems in our day to day lives. The LEA75F-9 is a very versatile AC/DC converter, used in a wide variety of applications. This article will go into detail regarding the LEA75F-9 application field, as well as the internal working principles.

LEA75F-9 Application Field

The LEA75F-9 has a wide variety of potential applications. It is most commonly used in home electronic devices, such as microwaves, televisions, cell phones, and computers, as well as in industrial machines and AC/DC motors. This is possible due to its large 7.5A output current. Additionally, it is widely used in architecture, medical devices, and power supplies. Its wide application field is attributed to its reliable performance, high efficiency, low noise, low power consumption, and low cost.

LEA75F-9 Working Principle

The LEA75F-9 utilizes a new circuit topology which is based on an active clamp forward converter with resonance. The resonance allows the LEA75F-9 to switch at a lower frequency, reducing the switching losses. The clamp windings are used to eliminate the voltage spikes, resulting in increased efficiency and improved power factor. The key parts of the LEA75F-9 include the power inductors, boost diode, capacitors, EMI filter, power switches, and control IC. The power inductors are used to store energy, while the boost diode provides the output current. The capacitors are used to filter the output voltage, while the EMI filter filters the high frequency ripple current. The power switches are used to disconnect and reconnect the power, depending on the load. The control IC is used to control the output voltage and current.

Conclusion

The LEA75F-9 is an AC/DC converter used in a wide variety of applications. It has a wide application field due to its small size, low power consumption, and high efficiency. It utilizes a new circuit topology based on an active clamp forward converter with resonance, which is responsible for its high efficiency. It utilizes power inductors, boost diode, capacitors, EMI filter, power switches, and control IC to regulate output voltage and current.

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