QHHD019A0B41-HZ

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DC-DC converters are electronic devices used to convert a DC input voltage to a DC output voltage, allowing voltage adjustments while providing electrical isolation between input and output signals. The QHHD019A0B41-HZ is a high power, wide input range, hot-swappable Isolated DC-DC Converter that offers excellent performance, reliability, and features. It is an ideal choice for applications in harsh environment, such as automotive, aerospace, surveillance, communications, industrial, and medical machines.

Features of QHHD019A0B41-HZ

• Wide 4:1 input range:21-36V/42-72V/85-144V.
• Output voltage range:1.5-30V regulated.
• High power up to 1200W.
• High efficiency up to 93%.
• High reliability due to full, automatic overload and over temperature protections.
• Flow through air cooled design.

Applications

The QHHD019A0B41-HZ is suitable for a wide range of industrial, communication, automotive, and aerospace applications, such as instruments, automotive systems, security systems, medical setups, and military equipment. It can be used in applications where the input and output voltages must be isolated due to noise, or for purposes of convenience or safety.

Working Principle

The QHHD019A0B41-HZ is an isolated DC-DC Converter which means that it provides electrical isolation between input and output. By altering the duty cycle of the input voltage, the internal switching circuitry adjusts the output voltage as well. The output voltage is regulated by using an error amplifier connected through an opto-coupler. The opto-coupler provides electrical isolation for feedback signals for better protection against environmental noise and ensures the long-term reliability of the converter.

The input power sources, such as solar panels or battery, feed into the input terminals of the converter. An internal, solid-state switch then turns the power on and off in order to adjust the output voltage, as required by the opto-coupled error amplifier. The input power is converted into DC voltage and then outputted at the output terminals. The output voltage can then be used to power various devices that require a DC supply.

Conclusion

The QHHD019A0B41-HZ is a high power, wide input range, hot-swappable isolated DC-DC converter with numerous features and excellent performance. It is a suitable choice for highly demanding applications that require reliability and precision, such as automotive, aerospace, surveillance, communications, industrial, and medical machines. The principle of this converter involves the regulation of the output voltage using an error amplifier connected through an opto-coupler, as well as the conversion of the input power source into DC voltage.

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