ZPSA20-12

AC/DC converters are used to convert alternating current (AC) electricity to direct current (DC) electricity and to regulate the output voltage. The ZPSA20-12 is a regulated AC/DC converter with built-in EMC filters designed for industrial electronics and automotive applications. It offers protection against short circuit, overvoltage, and reverse polarity. This article will discuss the application field and working principle of the ZPSA20-12.

Application Field

The ZPSA20-12 AC/DC converter is primarily designed for industrial applications such as factory automation, remote monitoring, and control systems. The device has a maximum output current of 12A and can provide a continuous output power of up to 120W. It is also suitable for use in automotive applications such as starter systems, electric vehicle charging systems, and automotive safety systems. The device meets the requirements of Class l1 EMI and is certified to EN 55011 and EN 550018. It also meets the stringent requirements of railroad standard EN 50155, making it suitable for use in railway vehicles.

Working Principle

The ZPSA20-12 is a switching power supply which works by controlling the power output using a switching device. The input AC voltage is converted into a DC voltage by a rectifier and then filtered to remove noise and ripple. The output voltage is then regulated and monitored by the control circuit. The control circuit operates in pulse-width modulation (PWM) mode to regulate the output voltage. This involves controlling the on/off switch of the switching device which, in turn, controls the amount of power delivered to the output. The output voltage can be adjusted by varying the PWM duty cycle to provide the desired output voltage.

The ZPSA20-12 has built-in protection against short circuit, overvoltage, and reverse polarity. It also has an automatic shutdown feature which shuts down the output if the input voltage is too low or too high. This ensures that the converter is protected from severe voltage fluctuations and can operate over a wide range of input voltages without any damage.

To summarise, the ZPSA20-12 is a robust AC/DC converter which offers protection against short circuit, overvoltage, and reverse polarity. It has a maximum output current of 12A and can provide a continuous output power of up to 120W. It is suitable for use in industrial and automotive applications and meets the requirements of Class l1 EMI and railroad standard EN 5015. Its simple working principle and built-in protection features make it an ideal solution for applications requiring reliable power conversion and regulation.