QP-320D Power Supplies - External/Internal (Off-Board)

AC DC Converters have been in use since the early days of electrical engineering, providing an efficient, reliable and often cost effective method of supplying power from one circuit to another. The QP-320D AC DC Converter has been designed to provide superior performance and reliability over a wide range of applications. This article will explore the application field and working principle of the QP-320D AC DC Converter.

Application Field and Characteristics

The QP-320D AC DC Converter is a high efficiency, high reliability unit that can be used in professional, commercial and industrial environments. Designed as a two-stage device, the QP-320D provides energy conversion from AC to DC over a wide range of voltage inputs – from as low as 120Vac up to 600Vac. It has an input frequency range of 45 Hz to 65 Hz, allowing it to be used in a variety of power systems around the world. The device is designed and certified to meet safety requirements in accordance with both UL61800-3 and ENEC 250-3 standards.

The unit also features a wide temperature range operating from –30¬∞C to 85¬∞C, making it suitable for use in both residential and commercial settings. It also provides a wide range of protection features, helping to ensure a safe and reliable operation over the long term. These include input protection from transients, surge and reverse polarity protection as well as output protection from over-voltage and over-temperature.

Working Principle

The QP-320D AC DC Converter operates in two stages – the input stage and the output stage. During the input stage, an AC voltage is converted to a DC voltage. This is then used to charge the internal storage capacitors in order to provide a stable output voltage. During the output stage, the stored energy is then returned to DC and the resistor voltage is discharged. This stage is used to regulate the output voltage and ensure stability.

The device is designed to minimize ripple and noise interference, while providing protection from short circuit and overvoltage events. The high efficiency of the QP-320D AC DC Converter enables it to reduce energy loss and minimize maintenance costs. Additionally, the unit features an integrated snubber circuit, enabling it to handle mild over-voltage and over-temperature conditions without having to compromise on performance or efficiency.

The QP-320D AC DC Converter is a versatile, reliable and energy-efficient unit that can be used in a wide range of applications. It meets the requirements of both UL61800-3 and ENEC 250-3 standards, providing a safe and reliable operation. Additionally, the unit provides high efficiency and protection features, helping to reduce energy loss and maintenance costs.