REC3.5-0505SRW/R8/C

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DC/DC converters are power electronic devices used to convert one voltage level into another voltage level, usually with isolation. A dc/dc converter can act as either a booster, increasing the voltage from an input level to an output level, or as a buck converter, decreasing the voltage from an input level to an output level. There can also be other types of DC/DC converters such as flyback, forward, boost, etc.

The REC3.5-0505SRW/R8/C belongs to the family of regulated single and dual output power converters. This particular device belongs to the family of DC/ DC converters and is a stepdown converter, also known as a buck converter. It is a RoHS compliant and approved connector type module, to reduce the voltage from 5V to 3.5V which is and rated for 50A.

The buck converter is based on the principle of pulse width modulation (PWM). This is a control technique which uses the constant frequency of the pulses to vary the pulse width and thus vary the amount of energy transferred to the load at any given moment. This principle is applied in the REC3.5-0505SRW/R8/C and the principle of operation can be explained as follows:

When the converter is turned on, an internal switch is closed by a PWM signal generator which creates the constant frequency train of pulses. When the internal switch is closed, current is allowed to pass through the inductor which stores energy within the magnetic field created by the current. The energy is then released from this inductor to the load across the capacitor as soon as the switch is opened. This results in a voltage drop across the inductor, which is greater than the input voltage. The inductor operates as an energy-transferring device and helps to convert the input voltage into a lower output voltage. The rectified diodes act as current-limiting elements and prevent the current reverse flow through the inductor.

To maintain the output voltage, the PWM signal generator regulates the on-time and off-time of the internal switch, depending on the desired output voltage. This regulation is adjusted to prevent any voltage drop, making the converter work at a constant output voltage that remains relatively stable even when the load current varies. This voltage regulation is enabled by the use of comparators and error amplifiers which detect any changes in the output voltage and adjust the PWM signal accordingly.

Due to its features and the wide range of application of the REC3.5-0505SRW/R8/C DC/DC converter, it can be used for various applications such as powering peripherals and cooling them with the help of heat dissipation techniques, powering transceivers and other radio equipment, powering low-power modules for test and measurement, or any other industrial or commercial applications where the conversion of voltage from higher to lower levels is necessary.

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