SDB107-TP Discrete Semiconductor Products

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Diodes - Bridge Rectifiers are becoming increasingly popular because of their ability to provide power efficiently and quickly. The SDB107-TP Bridge Rectifier is no exception, allowing users to conveniently switch between single phase and three phase power quickly and easily. The following will explain the application field and working principle for the SDB107-TP Bridge Rectifier.

Application Field

The application field for the SDB107-TP Bridge Rectifier is wide and varied. Primarily, it is used in circuits where a high frequency, high power AC signal needs to be converted into a low frequency, low power DC signal. This type of rectifier is designed to operate efficiently in DC power supplies, lighting circuits, heating circuits, solid state relays, UPS devices, inverters, LED lighting, motor speed controls and many other AC to DC conversion applications.

The SDB107-TP Bridge Rectifier is also ideal for applications requiring low power, low current, high frequency Switch Mode Power Supplies (SMPS). These types of power supplies require an efficient inrush current, low power dissipation and low capacitive loading. All of which are characteristics found in the SDB107-TP.

Working Principle

The SDB107-TP Bridge Rectifier is an array of four diodes arranged in a bridge configuration. At the input of this bridge are two AC lines, which run parallel to each other. When no power is traveling through the bridge, the paths from AC lines A and B to the output lines D and C, called the free wheeling diodes, are blocked by the other two diodes. However, when a positive voltage is applied to line A, the two diodes on the bridge not only make a conduction path, but they also block the two free wheeling diodes, creating a circuit which allows current to flow in one direction only.

This one way path, when powered by AC current, creates a voltage wave for the output of the bridge. This wave is usually a full wave rectified wave where both the positive and negative parts of the AC wave are rectified, resulting in a high direct current (DC) output. In addition to this full wave rectification, the bridge also filters out higher frequency components from the output wave, resulting in a DC wave with significantly less distortion than the original AC wave.

Conclusion

The SDB107-TP Bridge Rectifier provides users with a convenient and efficient way to switch between single phase and three phase power quickly and easily. It is also ideal for applications requiring low power, low current, high frequency Switch Mode Power Supplies (SMPS). The operation of this bridge rectifier is based on the principle that two AC lines are running parallel at the input, while the two other diodes control the path between the AC and the DC output lines, allowing the current to flow in only one direction. The output of the bridge is a full wave rectified wave, which means both positive and negative parts of the wave are rectified, resulting in a high DC output. This bridge rectifier is used in a variety of circuits and is a great example of the efficient and powerful technology available today.

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