DBLS157G RDG Discrete Semiconductor Products

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Diodes - Bridge Rectifiers

The DBLS157G RDG is a plastic-encapsulated bridge rectifier device using the Au-doped ultrafast soft recovery rectification technology from Diodes Incorporated. It is an ideal solution for high power devices in the power system and general AC-DC rectification applications. This rectifier device is available with a medium power ceramic package of 0.45 by 0.45 form factor, providing higher power density and higher efficiency than competitive devices to save board space and reduce cost.

Application Field

The DBLS157G RDG bridge rectifier is generally used in AC-DC power applications with 50Hz/60Hz power system, such as commercial lighting ballast, SMPS, AC/DC power adapter, standby power supplies, input rectification and inverter technology.

Working Principle

The DBLS157G RDG bridge rectifier consists of four ultrafast soft recovery diodes connected in a bridge configuration. When an AC voltage is applied to the rectifier, each diode periodically conducts electric current during each half cycle of the applied AC voltage. When electric current flows in one direction, the rectifier acts like an electric short circuit. As a result, electric current passes through the rectifier and the electric power is converted from AC to DC. The total forward voltage drop of the rectifier is determined by the sum of the forward voltage drops of the four diodes.

Advantages

Comparing to the traditional bridge rectifier configuration, the DBLS157G RDG bridge rectifier features multiple advantages:

• Higher power density, due to the proprietary Au-doped ultrafast soft recovery rectification technology
• Higher efficiency, by reducing the power loss in the switching process
• Lower cost, as it requires fewer components than competitive devices
• Reduced EMI and conduction losses, with vanishing switching times even at full load
• Supports reverse polarity protection and over-temperature protection

Conclusion

The DBLS157G RDG rectifier device from Diodes Incorporated is a fast, efficient and cost-effective bridge rectifier solution for AC-DC power applications. It is ideal for SMPS, AC/DC power adapter, standby power supplies, input rectification and inverter technology. With the Au-doped ultrafast soft recovery rectification technology, it help achieves higher power density, higher efficiency, lower cost and reduced EMI and conduction losses.

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