DZ150-7EU

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The DZ150-7EU AC DC converter is a power switch converter that converts direct current (DC) to alternating current (AC) to provide both regulated DC (for battery charging) and regulated AC (for typical end products such as PCs, lights and other small appliances). It is designed to deliver hi-efficiency and precise control of power output.

The DZ150-7EU is typically used in industrial and medical markets where high isolation, ripple control, load regulation, accuracy and long life is important. In many cases, it is the only power conversion device (PCD) necessary in these applications due to its high reliability and robustness.

The key components of the DZ150-7EU include a full bridge diode rectifier, a powerful PWM controller, an IGBT power MOSFET, an EMI filter, and a current sensing circuit. The design of the DZ150-7EU ensures high efficiency, low harmonic distortion, and a wide input voltage range from 85 VAC up to 265 VAC. It also has various protection features such as short-circuit protection, over-temperature protection, over-current protection and under-voltage protection.

The DZ150-7EU has a wide operating frequency range and can be adjusted from 50Hz to 500Hz. This makes the power converter suitable for many applications with specific requirements for input frequency. The DZ150-7EU can also be configured to provide both single phase and three phase output.

The main working principle of the DZ150-7EU is based on pulse-width modulation (PWM). This refers to the systematic switching of the power devices, IGBTs, on and off, which creates a sequence of high and low pulses. The frequency and duty cycle of the pulse-width modulated signals are adjusted so as to provide a steady output voltage. The PWM controller precisely regulates the duty cycle of the switches according to the input voltage and the constructed output voltage. The repetition rate of this switching process, which is determined by the speed and duration of the switching, is the same as the output frequency.

The PWM signal is created from a comparator, which compares it with a reference signal and set its duty cycle as a result of the process. When the AC input signal is greater than the reference, the comparator output will be high thus turning the IGBT on. When the AC input signal is lower than the reference, the comparator output will be low thus turning the IGBT off. This is the process of the DZ150-7EU to control the output relative to the input signal.

In conclusion, the DZ150-7EU AC DC converter is an efficient and accurate power switch converter capable of providing both regulated DC and regulated AC from a wide input voltage range. Its wide operating frequency range and single-phase and three-phase configurations makes it suitable for a variety of applications. The main working principle is based on pulse-width modulation which enables precise control and power output regulation.

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