CUS30M48

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AC/DC converters are essential components in any power quality or electronic systems. They are mostly used for power conversion from AC line voltage to a DC voltage. The CUS30M48 is a pole 5 A Unmarked Switching Regulator that is part of the Cytnara family of ultra-fast switching AC/DC converter circuits. This product is specifically designed to address the ever-growing need for high-efficiency, low-cost, compact regulators. It is ideally suited for use in switching power supplies and voltage converters.

The CUS30M48 features an Active Power Factor Correction (APFC) circuit that adjusts the input voltage, ensuring optimal power efficiency and line voltage stability. It offers adjustable switching frequency from 200 kHz to 1 MHz, allowing flexibility in design. It also has an integrated output ripple filter that reduces noise and improves line regulation.

The device\'s constant-voltage and constant-current design eliminates the need for additional components and provides smooth start-stop operation. It has excellent surge characteristics and a wide operating temperature range, making it suitable for industrial, telecommunications and automotive applications. The CUS30M48 also meets the stringent safety requirements required in many applications.

The working principle of CUS30M48 is very simple. The device consists of an input AC bridge rectifier circuit and a buck converter. The input voltage is rectified by the AC bridge rectifier and the output voltage is controlled by the buck converter. The buck converter consists of an upper transistor switch, lower transistor switch, and a transformer. The upper and lower switches are driven alternately, first positive then negative, creating an AC voltage at the primary winding of the transformer.

The AC voltage turns on and off the positive and negative transistors in the buck converter. This produces an output voltage that is lower than the input voltage. The output voltage is regulated by controlling the duty cycle of the upper and lower transistors. The output voltage can be adjusted by changing the frequency of the pulses or by changing the magnitude of the voltage. The transformer also limits the amount of current that can pass through the buck converter.

The CUS30M48 can be used in a variety of applications, such as automotive, industrial, robotics, and computing. The device is well-suited for use in power supplies and voltage converters, where a wide operating temperature range and excellent surge characteristics are required. It is also ideal for applications that require a constant voltage and constant current, or for those that require a high switching frequency. Additionally, the device’s integrated output ripple filter helps reduce noise and improve line regulation.

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