ZPSA20-3R3

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AC/DC Converters - ZPSA20-3R3 Application Field and Working Principle

The ZPSA20-3R3 is an AC/DC Converter that can convert AC power to DC power at a constant output voltage. The converter is available in various output voltage ranges, making it a suitable choice for a variety of applications. Its design includes features such as built-in EMI filtering, surge protection, overvoltage and overcurrent protection, and a wide input operating range. With its multiple inputs, the ZPSA20-3R3 AC/DC Converter can accept a variety of international input power standards.

The ZPSA20-3R3 has many advantages over other AC/DC converters on the market. It is highly efficient, with a peak efficiency of up to 94%, allowing it to run cool even when dissipating high amounts of power. Its wide operating temperature range from - 25°C to + 70°C ensures it will remain safe and reliable in all conditions. Its active current share feature allows multiple converters to operate in parallel, which can significantly reduce system cost. With its built-in EMI filtering and surge protection, it provides the highest level of protection against power line disturbances.

The ZPSA20-3R3 has a simple but effective working principle. It uses a full-bridge rectifier circuit with a step-down transformer to convert AC power into DC power. The rectifier circuit is composed of four switches, two of which are controlled by a Pulse Width Modulation (PWM) commutation circuit. The PWM circuit regulates the duty cycle of the switches based on the output voltage and current in order to maintain a constant output voltage. When the output voltage is below its set value, the PWM commutation circuit increases the duty cycle of the switches so that more current is drawn from the AC input and more power is output to the output terminals. Conversely, when the output voltage is above its set value, the PWM commutation circuit reduces the duty cycle such that less current is drawn from the AC input and less power is output to the output terminals. This helps maintain a consistent output voltage.

The ZPSA20-3R3 AC/DC Converter is a versatile and efficient power source that is suitable for a wide range of applications. It is reliable and robust, providing the necessary protection against power disturbances. Its wide input operating range and active current share feature make it a viable choice for cost-conscious and complex power systems. The ZPSA20-3R3 AC/DC Converter is one of the best solutions for applications requiring clean and consistent DC power.

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