NRVB0540T3G Discrete Semiconductor Products

Introduction

NRVB0540T3G is a single phase rectifier bridge from Fairchild Semiconductor. It is from the product family of Diodes-Rectifier-Single. With a rectifier bridge circuit a three phase effect can be achieved with just one phase of AC power supply. This type of device is primarily used to convert input AC supply to output DC supply.

Features

• Low forward voltage drop
• High-speed switching (designed for high-frequency rectification)
• High temperature capability up to 125°C absolute maximum working temperature
• Good surge capability
• High surge current capability
• Unity-gain cutoff frequency of 12MHz
• High regulator power factor
• Low cost
• Low switching losses

Applications

NRVB0540T3G is used in applications that require converting AC current to DC current such as automatic motor control systems, motor drives, battery chargers, lighting, and power supplies. This bridge rectifier is also used in medical systems, UPS systems, and renewable energy sources.

Working Principle

A bridge rectifier is a circuit made with four diodes which performs the same function as a full-wave rectifier circuit. It converts the alternating current (AC) into direct current (DC). This is done by using two diodes for each half-cycle of the AC signal. As the AC signal reaches each peak, two of the diodes will be forward biased and two of the diodes will be reversed biased at the same time. As a result, the diode pairs will conduct current and transfer it to an output capacitor for storage. This current output is the DC signal.

The NRVB0540T3G bridge rectifier was designed with low-loss diode pairs and a low-inductance package to reduce switching losses. It also has a unity-gain cutoff frequency of 12MHz to facilitate high-frequency rectification. With this design, the bridge rectifier can achieve a higher regulator power factor and better surge capability than other rectifiers with comparable ratings.

Conclusion

The NRVB0540T3G bridge rectifier is a single-phase rectifier designed for high-frequency rectification. It is often used to convert AC current to DC current in applications like motor control systems, motor drives, lighting, and power supplies. The bridge rectifier has low forward voltage drop, high-speed switching, high surge current capability, and a high regulator power factor. The unity-gain cutoff frequency of 12MHz is also beneficial for achieving higher-frequency rectification.