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FES8GT-E3/45 application field and working principle

FES8GT-E3/45 is a single-phase rectifier diode with a maximum peak repetitive reverse voltage of 800V and an average forward current of 4.5A. It has a wide application range, including AC (alternating current) and DC (direct current) power supply systems.

Applications

FES8GT-E3/45 is mainly applied in power systems. For example, it can be used as various rectifiers, such as full-wave rectifiers, half-wave rectifiers, voltage multipliers and motor control circuits. It also can be used for frequency modulation and other pulsed loads. Furthermore, FES8GT-E3/45 can be used as a rectifying element in induction heater, transformer, electronic ballast and DC welding machines.

Working Principle

FES8GT-E3/45 consists of an anode, a cathode and a junction that prevents current from flowing in reverse direction. It is essentially a two terminal electronic component, operating under the principles of diode rectifier. A diode is a two-terminal electronic device which allows current to flow in only one direction, preventing current from flowing the other way. In order to work, the two terminals of the diode must be connected in such a way that when one terminal is positive relative to the other, current will flow; when the other terminal is positive, no current is allowed to flow. In the on state, electrons travel from the anode to the cathode, allowing current to pass through the circuit.

FES8GT-E3/45 works by allowing current to flow when a voltage is applied across it. When there is no voltage, the diode is off and no current can pass. When a voltage is applied, current can pass along the forward polarized diode, causing it to switch on. When the voltage is removed, the diode will switch off. Typically, the rectifier diodes are made of materials that have a high PN-junction breakdown and can handle high current and voltage. The current-voltage (V-I) characteristics of the diodes relative to their reverse-biased characteristics are what influence their behavior and determine how they are used in different circuits.

Conclusion

FES8GT-E3/45 is a popular diode rectifier with a wide application range in AC and DC power supply systems. It has a maximum peak repetitive reverse voltage of 800V and can handle an average forward current of 4.5A. It operates under the principles of diode rectifier and is used for applications such as full-wave rectifiers, half-wave rectifiers, voltage multipliers and motor control circuits, as well as frequency modulation and other pulsed loads.

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