PT6202A

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DC DC converters, or DC DC power supplies, are regularly used to transform one voltage level to another, providing regulated and conditioned output power. The PT6202A is a transformerless, isolated DC DC converter designed for larger applications such as industrial and railway control systems, professional equipment, communication systems, and power conditioning. This article examines the application field and working principle of the PT6202A.

Application Field of PT6202A

The PT6202A is a DC-DC converter with 1200W continuous output power, which converts an input voltage within a wide range of 350V to 450V to a precise regulated output voltage. It has a temperature range from -40℃ to 105℃, and can withstand transient voltages up to 8KV. The unit is designed to provide effective and safe power conversion of higher voltage levels, suitable for any applications that require higher nominal voltage conversion to a regulated, conditioned output.

The PT6202A is an ideal product for applications that require reliable and stable output power, such as industrial machinery, telecommunications systems, and railway control systems. The device is designed to be used in more rugged and demanding environments, and has built-in dust and waterproof features. Moreover, the device uses a MOSFET-based full bridge topology, meaning it is designed to endure higher current and power levels. The unit also has active current sharing between channels to increase efficiency and reduce losses.

Working Principle of PT6202A

The PT6202A is a full-bridge-type DC DC converter with an innovative design offering superior performance and high efficiency. The unit employs a 4-stage topology to provide a high reliability, isolated power conversion. The device contains an input bridge rectifier, an active-clamp switching circuit, and two output stages for isolation, voltage control, and power regulation.

The bridge rectifier at the input converts the AC power into DC voltage, then it is converted to a high-frequency AC voltage using an active-clamp switch, where it is passed through an isolation transformer. The dual-stage output stages regulate the output voltage and current before passing through the power regulation stage to provide the conditioned output power.

The PT6202A uses MOSFETs in its output stages, and a combination of a boost inductor and boost-diode in the active-clamp circuitry to ensure a high efficiency. In addition, the device contains a feedback circuitry which controls the output voltage, and a sensing circuit to protect the device from overvoltages. Moreover, the PT6202A employs a current-sharing technology called Uni-DRM (Current Sharing) to ensure an even current flow and increased efficiency.

Conclusion

The PT6202A is an efficient, isolated DC DC converter that is designed for larger applications in industrial, telecommunications, and railway control systems. The full-bridge-type converter is designed to provide a regulated and conditioned output power with a wide input voltage range. The device employs a MOSFET-based full bridge topology and has active current sharing between channels to minimize losses. It also has built-in dust and waterproof features, making it ideal for more rugged and demanding environments. The device’s combination of features makes it a perfect choice for controlling and regulating power in a variety of applications.

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