IAS012ZH

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DC-DC converters are one of the most important components in power supply systems, playing an essential role in regulating input voltage to provide a regulated output voltage. The IAS012ZH is a DC-DC converter from Vicor Corporation that can be used in various applications in various fields. This paper aims to discuss the application field and working principle of the IAS012ZH converter.

Application Field of the IAS012ZH

The IAS012ZH is an isolated DC-DC converter that can be used in industrial, aerospace, and telecommunications systems. It features a wide input range of 18 to 72 VDC with an output power level of 18 W. It is an efficient and reliable device that can convert the input voltage to 1.2 VDC, 3.3 VDC, 5 VDC, or 12 VDC outputs. In addition, it has an in-built EMC filter and molded plastic case, which make it suitable for use in military and aerospace applications.

The IAS012ZH is also well-suited for use in factory automation, railway signal systems, and remote-site energy systems. It is a rugged and robust device that can operate from -40 to 90°C in temperatures. In terms of safety, the device provides high isolation between input and output, protecting sensitive loads from electrical noise and overvoltage.

Overall, the IAS012ZH is a reliable DC-DC converter that can be used in all kinds of applications and fields. It is especially suitable for industrial, aerospace, and telecommunications systems, as well as for factory automation, railway signal systems, and remote-site energy systems.

Working Principle of the IAS012ZH

The IAS012ZH converter operates according to the flyback topology, which is a type of multifunctional power supply circuit. This means that the voltage is not stepped down using an inductor or other components, but rather by using the switching property of the device. It works by first taking the input voltage and then storing it in the primary winding of an isolation transformer. The current is then delivered to the output through the secondary winding of the transformer. The output voltage is determined by the turns ratio of the transformer.

The device also uses a feedback circuit to detect the output voltage and control the turn-on width of the switching device. This leads to a constant switching frequency and, thus, stable output voltage. When the output voltage is too high, the feedback circuit will reduce the switching frequency, and vice versa. This makes the IAS012ZH very efficient and reliable.

In addition, the device has built-in active-clamp and synchronous rectification circuits, which helps further reduce the power losses and improve the efficiency of the DC-DC conversion. This helps reduce the overall size and cost of the system. It also enables the device to reach a high level of efficiency, up to 93%.

Conclusion

In conclusion, the IAS012ZH is a reliable DC-DC converter suitable for use in various applications and fields. It features a wide input voltage range, as well as a molded plastic case and EMC filter, making it suitable for military and aerospace applications. The device also operates according to the flyback topology and utilizes active-clamp and synchronous rectification circuits to achieve efficient and reliable DC-DC conversion.

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