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48090 APPLICATION FIELD AND WORKING PRINCIPLE

48090, otherwise known as a Silicon Oxide Fet (SOFET), is a widely used type of field effect transistor especially for use in very low power and low voltage applications. Originally intended for use in medical applications, the FET has become a widely used component across a range of applications, including audio, power supply, automation, and even aerospace. This article will explain the 48090\'s specific application field and the working principles behind this amazing transistor.

Application Field

The 48090 is known for its excellent performance in very low power, low supply voltage applications. This is due to its small size and extremely low leak current which helps ensure that very little current is wasted. The Bi-Directional SOFET has proven to be especially suitable for medical applications, such as cardiac pacemakers, insulin pumps, neurological stimulators, and ECG machines. It is also used as audio amplifiers, to operate the flippers on video games, for power supply and automation applications, and even for aerospace purposes.

The FET creates a low impedance path between the drain and gate which allows it to be used in a wide range of audio applications. This low impedance path allows for excellent control and ultra-low distortion, which gives it an advantage over other audio amplifier components. Also, the output of the FET can be controlled by voltage which makes it an ideal choice for applications such as volume controls and metallic shock protection.

The 48090 has also found widespread use in power supply applications. Due to its ability to carry extraordinarily high currents, the SOFET is often used in high-power switching applications. This is especially useful in switching power supplies, which use the FET as a gate element to switch motors on or off, or to change the direction of a motor. In addition, the low source-drain capacitance of the 48090 makes it an ideal choice for switching applications to minimize electromagnetic interference and radio frequency interference.

Lastly, the FET is often used in aerospace applications. Due to its low power consumption and high level of control and accuracy, it is suitable for use in both satellites and manned spacecraft, due to its extreme reliability when operating in the hostile environment of space. In addition, due to its low drain-gate capacitance, the FET is used in motor speed control applications.

Working Principle

The 48090 is a floating gate MOSFET, which is composed of three terminals: source, gate, and drain. It is "floating" because the gate is electrically isolated from the rest of the device, and is capable of holding an electrical charge. This charge creates a voltage potential which controls the conductivity of the device.

When a voltage is applied to the gate, it will create a charge that will pull electrons from the source to the drain, creating a flow of current. When the gate voltage is removed, the electrons will return to the source and the current will be cut off. This is the basis for the 48090\'s high efficiency and low power operation.

By controlling the gate voltage, the current flow between the source and the drain can be regulated. This is useful in applications such as motor control, where the current can be used to control the speed of the motor. In addition, by controlling the gate voltage, the 48090 can be used as a voltage regulator.

The 48090 can also be used in audio applications, where it can be used as an amplifier. By controlling the gate voltage, the electrical signal passing through the FET can be amplified and used to control audio levels. In addition, the FET\'s low internal capacitance contributes to its low distortion, which helps ensure a clear, natural sound.

Conclusion

The 48090 is an incredibly versatile and reliable field effect transistor, capable of operating reliably in even the most hostile environments. Its low power consumption, high level of control, and low distortion make it an ideal choice for medical, audio and power supply applications, as well as aerospace applications. The 48090 is also known for its high current carrying capacity which makes it especially suited for use in switching applications. Regardless of the application, the 48090 will be an ideal choice.

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