PQDE6W-Q48-S3-D

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DC DC Converters

DC-DC converters are electronic circuits used for the conversion of Direct Current (DC) to a desired output voltage. During this process the source current is converted from a constant, potentially higher voltage to desired lower output voltage at a certain level current. From a practical perspective, the DC-DC converter is essentially a specialized form of a virtual black box which leverages a series of switches to transform and direct the current source at desired load requirements, thereby improving efficiency and creating unified power flow throughout the circuit.

The PQDE6W-Q48-S3-D is an example of a DC-DC converter manufactured by Power Systems Technology (PST) which is used for the conversion of 24VDC nominal input to 3.3VDC nominal output. This medium power unit of PST’s line of dc-dc converters is designed to meet the military’s stringent requirements and the isolating voltage is 600Vdc. It is highly reliable, allows an output current range of up to 3.5A, with 94% efficiency at full load, and is compact (2.3 x 2.0 x 0.38 inches). The heatsink may be removed for applications with limited space requirements.

The PST PQDE6W-Q48-S3-D DC-DC converter works by conversion of regulated voltage. The input voltage is rectified to direct current and filtered via an input capacitor to create the raw power source for the converter. The DC source is then switched on/off by an oscillator circuit which creates a desired duty cycle, allowing the input voltage to be transformed into a desired output voltage. This may be manipulated via external feedback components in the circuit, such as resistors or transistors.

The most critical characteristics of the PQDE6W-Q48-S3-D dc-dc converter includes intput-output isolation, Noise immunity, switching frequency, storage temperature range, power conversion efficiency and minimum load current.

The PST PQDE6W-Q48-S3-D DC-DC converter is used in network communication systems, factory automation systems, research and development applications, instrumentation and control systems, safety critical systems, aerospace, industrial and other military applications. This versatile power source can provide a steady power source for industrial equipment within the digital communications age, helping provide engineers and project managers with the necessary tools to create effective and reliable results.

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