R1S-3.33.3/H

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DC-DC converters are power electronic circuits used to convert one DC voltage level to another. They are used to convert a higher input DC voltage to a lower output voltage, with or without isolation, and to provide very precise output voltage regulation and power efficiency. The R1S-3.33.3/H is a three-phase DC to DC converter module designed to convert input voltages between 91V and 141V into an output voltage of 3.3V.

The R1S-3.33.3/H’s design is based on an active-clamp forward topology, which provides a high efficiency of up to 95% with minimal EMI and noise. It also provides programmable switching frequency from 200kHz to 600KHz, allowing for efficient use of circuit space. Its high power density and compact size make it a suitable choice for applications involving high power distributed systems, such as telecommunications, solar, wind, and medical systems.

The R1S-3.33.3/H is designed for high reliability and includes built-in redundancy and non-volatile memory to guarantee superior performance. It also features protection against over-temperature, under-voltage lockout, short circuit protection, and remote voltage sensing. In addition, it includes overload protection and current balance control, which helps ensure that the output voltage levels do not exceed the specified limits.

The R1S-3.33.3/H works by utilizing an internal power stage consisting of field effect transistors (FETs) that are switched on and off at a harmonic frequency. This generates an AC voltage of between 91V and 141V on the primary side of the transformer, while the secondary side produces an output voltage of 3.3V. Then, an internal synchronous rectifier converts the AC voltage to DC, which is then filtered and regulated to output a stable 3.3V.

Overall, the R1S-3.33.3/H is designed to be a reliable, high-performance, cost-effective solution for applications requiring a three-phase, DC-DC converter module. It provides a wide operating range, high-efficiency, and excellent power conversion with minimal noise and EMI. Additionally, its built-in protection features ensure it can operate safely and efficiently.

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