PT78ST133ST

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

DC to DC converters are electronic power supplies that convert one type of DC power to another. The PT78ST133ST is a series of DC-DC converters from Murata Power Solutions, Inc. These isolated converters offer high power density and performance, with a wide input voltage range, variety of isolation types and package options. They also feature tight line/load regulation and low ripple output.

The PT78ST133ST units are ideal for applications requiring high power density and conversion efficiency. They are suitable for a wide range of applications, including industrial control, telecommunications, medical diagnostic equipment, military systems, renewable energy systems, and data/recording systems.

Application Field of PT78ST133ST

The PT78ST133ST series is a very versatile range of DC-DC converters, offering a variety of package types, voltage and current ratings, and isolation ratings. It is ideally suited for types of applications where high power density is important, such as industrial control systems and renewable energy systems. This range is also highly efficient, featuring a minimum efficiency of up to 92% at full load. This makes it a great solution for applications where high output current is required but the input voltage is limited.

This series also offers a variety of isolation options, from complete isolation protection through to no isolation, which can be beneficial for noise-immunity in digital circuits. Additionally, this range features active current sharing, supporting up to 8 converters in parallel for redundant power system design. The PT78ST133ST series also features optional output overvoltage protection, enabling the converter to shut off if the output voltage exceeds the rated values.

Working Principle of PT78ST133ST

The PT78ST133ST series DC-DC converters adopt a flyback topology, also known as an isolated forward converter. In this topology, a switch is used to control the primary winding\'s voltage, and the energy stored in the primary winding\'s magnetic field is transferred to the control circuitry and isolated output on the secondary side. The switch is usually a MOSFET, and is controlled using a microcontroller, which regulates the output voltage, current, and power. The input voltage is stepped up or down by the transformer according to the turns ratio of the primary and secondary windings, providing the required isolation of the input to output.

The energy stored in the magnetic field of the primary winding is the main source of power for the converter. As it is converter to a higher voltage on the output side, the output current can be regulated without affecting the primary input voltage. As such, the DC-DC converter can be used to both reduce and increase the input voltage.

The PT78ST133ST series additionally benefits from the use of synchronous rectification. This refers to the process of switching the power supply from one operating state to another via the use of switching elements. This allows the MOSFET to switch synchronously, resulting in improved efficiency, while the output voltage is maintained. Furthermore, this series features temperature foldback control, whereby the output current of the converter is reduced at high temperatures to prevent thermal overloading.

In sum, the PT78ST133ST series of DC-DC converters from Murata Power Solutions, Inc. offer high power density and efficiency in a wide variety of package and isolation options. This series is ideal for a range of applications, including industrial control, telecommunications, renewable energy systems, and data recording systems. It adopts a flyback topology utilizing synchronous rectification and temperature foldback control for improved efficiency.

The specific data is subject to PDF, and the above content is for reference