RAC15-12DB

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AC/DC converters, mostly referred to as rectifiers, are commonly used in electrical equipment to convert alternating current (AC) to direct current (DC). This conversion is necessary because AC voltage and current levels differ from one location to another, and much of today’s electronic equipment is designed to work primarily with DC power. In addition, AC/DC converters are often used in conjunction with an AC bridge rectifier to improve performance and/or regulation.

One of the most widely used AC/DC converter units is the RAC15-12DB, a commercially available 3-phase AC/DC converter. Developed by RAC, it is used primarily as an input bridge rectifier for single-phase applications, such as uninterruptible power supplies (UPS), and two-phase applications for motor drives. It is also used in AC-coupled power supplies and DC motor controls.

The RAC15-12DB unit is a three-phase bridge rectifier, meaning it has three circuit paths and three-phase AC input terminals to accept power. Utilizing a high-frequency switching technique, the RAC15-12DB rectifier operates at higher speeds while maintaining low voltage and current ripple. This allows for a higher power density and improved performance levels.

In addition, the unit features a number of protection features including overload protection, short-circuit protection, phase-loss and reversed-phase protection, over-temperature protection and over-voltage protection. There is also an optional soft-start feature available that can reduce the surges caused by switching transients.

RAC15-12DB unit is typically used in applications where high power efficiency and superior level of protection are needed. It is ideally suited for applications where a high degree of precision control is required, such as in motor drives. By utilizing the protection features mentioned above, the unit can protect against a wide range of adverse conditions, ensuring that the motor runs with maximum efficiency and longevity.

The RAC15-12DB can also be used for AC-coupled power supplies, where it can help reduce line losses and ensure the safe and reliable delivery of power to sensitive circuits. Its high switching speed and low ripple voltage allow it to be used in applications requiring high speed control. The soft-start feature can be utilized as well, reducing the power surges that can occur when switching transients.

The RAC15-12DB is an efficient, low-cost AC/DC converter. With its many protection features and high-frequency switching capability, it is well-suited for a variety of application fields and can provide a reliable, cost-effective solution for many power conversion needs. Its superior efficiency and power density make it an ideal choice for a wide range of motors and AC-coupled power supplies.

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