PAH150S48-3.3

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DC to DC converters allow utilities to power a device using a direct current (DC) source. DC-DC converters are used to provide the correct voltage and current for a given device. The PAH150S48-3.3 is a popular DC-DC converter, with applications in many industries such as automotive, medical, instrumentation and industrial.

The PAH150S48-3.3 DC-DC converter uses a flyback topology to convert input power to the desired output, which can be as low as 3.3 volts. Outputs higher than the input voltage are achievable, but require a special arrangement. At the heart of the PAH150S48-3.3 is a high-frequency MOSFET switch, which is driven by a proprietary high-voltage avalanche control circuit. This combination provides excellent transient response and higher efficiency than traditional designs.

When the input power is switched on, the flyback converter operates in a continuous mode, where the energy stored in the primary winding of the transformer is transferred to the output. The winding of the transformer is carfully chosen to deliver the required output voltage and current. In some cases, depending on the load, the converter will switch to a discontinuous mode of operation. In this mode, the energy stored in the inductor is released, providing very low output voltages.

The PAH150S48-3.3 converter has active output voltage and current regulation. Regulation is achieved using an adjustable voltage reference, and voltage and current sensing resistors. The pulse-width modulation (PWM) cycle of the switch is adjusted until the output voltage reaches the desired setpoint. As the load varies, the feedback loop will adjust the PWM cycle of the switch in real-time, to maintain the correct output voltage.

The PAH150S48-3.3 converter is capable of providing a maximum output power of 12W, with an input range of 8 to 18V DC. The output can be adjusted from 3.3 to 36V DC, and is capable of providing 3A of current. The converter is built using advanced SMD components, and can operate in an ambient temperature range of -40 to +85°C.

The PAH150S48-3.3 DC-DC converter offers a number of features that make it an attractive choice for a range of applications. Its low operating power, wide operating temperature range and robust construction make it ideal for automotive, medical, instrumentation and industrial applications. Furthermore, its active output and current regulation ensures that it can handle dynamically changing loads, making it suitable for applications where the output must be tightly controlled.

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