HQA24120W480V-007-S Power Supplies - Board Mount

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DC-DC converters are used to convert direct current, or DC, power from one voltage level to another. The HQA24120W480V-007-S is an example of a DC-DC converter made by Eaton Corporation. It is designed to convert input voltages from a range of 120 to 480 volts to an output voltage of 24 volts with a maximum continuous current of 20 amperes. This converter also features a wide operating temperature range from -40 degrees Celsius to 70 degrees Celsius and a high power efficiency of over 91 percent, making it suitable for a variety of applications.

In order to understand the working principle of the HQA24120W480V-007-S, one must first understand how DC-DC converters work. The basic principle of operation is to convert DC energy from one voltage level to another without using a transformer. This is done by using an electronic switching circuit, such as a transistor switch, to rapidly turn the DC energy on and off. The output voltage from the converter is then regulated to the desired voltage level.

The HQA24120W480V-007-S utilizes a synchronous buck-boost converter topology for its operation. The converter consists of a synchronous buck regulator and a synchronous boost regulator. The buck regulator reduces the input voltage to the desired output voltage and the boost regulator increases the voltage to the desired output level. Both regulators are driven by an oscillator, which controls the on and off times of the electronic switch. The oscillator frequency is set to achieve the desired output voltage.

The HQA24120W480V-007-S also incorporates a full bridge rectifier circuit, which builds upon the rectifiers of a conventional switching power supply. This ensures that the input ac voltage is converted to a unidirectional dc voltage before the switching regulator. This rectification ensures that the dc voltage across the bridge is more stable and predictable, which is important for providing the best conversion efficiency.

The HQA24120W480V-007-S has applications in a wide range of industries. It is frequently used in industrial equipment, such as HVAC systems, process control systems, lighting systems, security systems, and more. It is also suitable for applications in the automotive industry, such as battery chargers, fuel cells, power converters, and electric vehicles. It is an ideal choice for applications that require high reliability and efficiency, such as medical electronics.

In conclusion, the HQA24120W480V-007-S is a reliable and efficient DC-DC converter suitable for a wide range of applications. The converter utilizes a synchronous buck-boost topology with a full bridge rectifier circuit to provide the highest power efficiency. The wide operating temperature range and high efficiency make it a great choice for applications where high reliability and efficiency are required.

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