SCNAS6

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SCNAS6 Application Field and Working Principle

The SCNAS6 is a dual three-phase bridge (or 3-phase bridge) rectifier, a type of diode array which offers an extended voltage voltage range, an extended temperature range and high current capacity. It is designed for applications requiring reliable and fast operation as well as versatile power management. The SCNAS6 is an ideal solution for medium to large power application needs.

Features

The SCNAS6 has two major features that make it perfect for medium to large power applications. First, the SCNAS6 has an integrated three-phase bridge rectifier, allowing the rectifier to handle higher voltages and higher temperatures without the need for an additional device. Second, the SCNAS6 employs a split phase synchronous rectifier topology, which provides improved power efficiency, faster-operation than previously available, and has a lower standby power requirement.

Advantages

The SCNAS6 offers several advantages compared to traditional rectifiers. First, the SCNAS6 operated at higher temperature ranges, enabling an increased power level and improved efficiency. Second, the SCNAS6 reduces the demand for an additional device, allowing for a smaller device package size to integrate with other power management systems. Lastly, the SCNAS6 has a wide input voltage range, allowing for maximum flexibility.

Working Principle

The SCNAS6 operates in the split phase synchronous rectifier topology. The SCNAS6 includes three identical phase-controlled rectifiers, each of which regulates the voltage on the individual phase. Each rectifier includes three switch modules, one for each phase. The switch modules are controlled by a high-powered insulated gate bipolar transistor (IGBT) switch, which is in turn controlled by three phase current feedback inputs. Based on the phase current feedback, each of the three switch modules is opened or closed for the most efficient power conversion. This ensures that the switch modules provide an almost constant high-voltage output even in varying input voltage conditions.

The SCNAS6 also employs an active voltage equalizer circuit to rectify common-mode noise, providing low-noise communication lines. In addition, the SCNAS6 has an active power balance controller that adjusts the output of each rectifier automatically to balance the load across each phase, enabling improved power efficiency.

Applications

The SCNAS6 is a highly efficient solution for medium to large power applications. It is well suited for fan, pump, compressor, and other continuous and variable load applications. Moreover, the SCNAS6 is ideal for projects that require a high level of efficiency and requires frequent changes in voltage and current demand. The SCNAS6 is also used in power supply systems for CCTV, automotive and industrial applications.

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