TEA1792TS/1,115

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Power Factor Correction (PFC) plays an essential role in energy efficient power systems. It’s a method in which AC power is converted to DC power in order to increase the efficiency of power delivery and reduce power losses. The technique associated with PFC is a must have in today’s modern power infrastructure and to achieve high power conversion efficiency at the buck and boost power stages in SMPS systems. It’s therefore important for engineers to know about PFC components and to understand their application fields and working principles.The TEA1792TS/1,115 is one of the devices found in the PFC family of components. It’s designed for specific conditions such as hazardous industrial applications where corrections must be steady and robust. In such applications, features such as wide range temperature operation, high commutation energy, and efficient operation at voltages below 500v are important. The device allows for the optimisation of power stages which makes the power conversion efficient by overcoming the effects of power factor distortion and harmonic distortion in an AC line.Application FieldThe TEA1792TS/1,115 has various applications including industrial and residential usage. The device’s high voltage capability and switching frequency makes it suitable for use in high power density and low voltage applications as well as providing high efficiency, reliable protection and non-interference with any electronic signals.In a residential environment, it can be used to reduce power losses and to improve the efficiency of power delivery. It can operate efficiently even at low voltages and offer reliable and stable protection for sensitive devices such as computers and home appliances.In an industrial setting, the device’s ability to provide a start-stop independent output power stage makes it suitable for use in applications with large amounts of power being delivered. Its high switching frequency enables it to provide accurate start/stop operation and efficient power conversion. Additionally, the ability to keep power losses to a minimum due to its commutation energy capability makes it suitable for hazardous industrial applications.Working PrincipleThe working principle of the TEA1792TS/1,115 is based on the concept of power factor correction (PFC). PFC is used to improve the power quality by reducing reactive power losses due to harmonics and distortion in the AC line. It works by controlling the energy stored in an inductor, also known as a choke, and releasing it in a controlled manner to the input bridge rectifier. This in turn allows for an optimised power conversion in addition to preventing power losses and distortion.The PFC device includes a control unit and an output stage. The control unit monitors the input current and voltage and adjusts the switching frequency of the output power stage accordingly. A higher switching frequency will result in a more efficient start/stop operation and increased power conversion efficiency. The output stage then controls the voltage and current of the input bridge rectifier allowing for the efficient delivery of power to the SMPS.ConclusionThe TEA1792TS/1,115 is an essential component in the PFC family, a device designed to provide high power density, low voltage operation and improved power delivery efficiency through power factor correction. Its ability to work efficiently at low voltages and provide reliable start/stop operation makes it ideal for hazardous industrial applications. The device works by controlling the energy stored in a choke and releasing it in a controlled manner to the input bridge rectifier, while its control unit adjusts the switching frequency of the output power stage accordingly. This allows for effective power quality management and optimised power delivery in the SMPS resulting in improved production processes and increased energy efficiency.

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