PTK25-D48-S15

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DC-DC converters are electronic devices used to convert one type of DC voltage into another, and are composed of switches which regulate the voltage output of the converter. The PTK25-D48-S15 device is a DC-DC converter designed to provide high reliability, high efficiency, and low output voltage within a compact and cost-effective package. This article explores the application field and working principle of the PTK25-D48-S15 DC-DC converter.

Application Field

The PTK25-D48-S15 device is specifically designed to meet the needs of distributed power systems and regulated power supplies. The quality of the output voltage of these systems needs to be consistent across a range of input voltages and conditions. As such, the PTK25-D48-S15 has a highly efficient, eight-stage stepped-down voltage regulation configuration, providing consistent quality and low ripple voltage (<40 mV) across the entire output range of the unit. The device is capable of converting a wide range of input voltages (24-48VDC) into a regulated output voltage (15VDC) with impressive stability and efficiency (94.5% peak @ 24VDC). Its wide input and output ranges make the PTK25-D48-S15 applicable for a wide variety of applications, from distributed power systems to regulated power supplies.

Working Principle

The PTK25-D48-S15 is composed of a PWM controller, an inductor, a power MOSFET, an error amplifier, a reference voltage source, and a load regulation circuit. The PWM controller is used to control the on/off switching of the power MOSFET, and the error amplifier is used to compare the voltage to the set point and produce a feedback voltage accordingly. The reference voltage source provides a stable reference voltage for the error amplifier, while the load regulation circuit is responsible for setting the output voltage value. Once the correct output voltage is set, the PWM controller then begins to switch the power MOSFET, allowing the energy from the input voltage to be converted into a regulated output voltage.

The PTK25-D48-S15 also features over-voltage, over-temperature, and dynamic load protections. If the device’s temperature rises past its predefined safe level, it will automatically shut off to prevent damage to the components and the device itself. Similarly, the overload protection will shut the device off if there is a sudden surge in the current or voltage drawn by the load.

The PTK25-D48-S15 device offers a reliable, efficient, and cost-effective solution for distributed power systems and regulated power supplies. With its highly efficient and adjustable voltage regulation, this device is capable of producing an output voltage of 15VDC from an input Wattage of up to 48W, with impressive efficiency and stability.

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