SRAH-12F1500

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A DC converters refers to a range of power supplies that converts a source of direct current (DC) from one voltage level to another. The SRAH-12F1500 is a type of DC-DC converters and this article provides an overview of its application field and working principle.

Applications

The SRAH-12F1500 are suitable for a wide range of applications, such as industrial and automotive control systems, and telecommunication system power supplies. This DC-DC converter is typically used to step-up an input voltage (0-72Vdc) and output an adjustable voltage from 13V up to 42V. It also has an adjustable VOUT/VIN ratio for deriving higher output voltage from lower input voltage. The SRAH-12F1500 DC converter also delivers an extended temperature range of -20°C to +70°C and a high-efficiency level up to 97%.

Features

The SRAH-12F1500 DC-DC converter has several features that provide reliable power conversion from the input DC voltage to the output. It is a 12 volt output, full-bridge, high-efficiency, converters that deliver 1500 watts of power. It has a seven-step design that uses soft switching techniques and a sync (synchronous) rectification process. The main features of this converter include:

• Wide input and output voltage range from 0-72VDC and 13V to 42V respectively
• High efficiency up to 97%
• Asynchronous PWM Controller
• Remote On/Off control
• Soft switching techniques
• Sync (synchronous) rectification
• Built-in EMI filter

Working Principle

The working principle of the SRAH-12F1500 DC-DC converter is based on a couple of alternating current (AC) transformers. It consists of a primary transformer and a secondary transformer, which are connected to form a full-bridge circuit. The input voltage is applied to the primary transformer, which in turn magnetizes the secondary transformer and generates the required output voltage. The high-frequency PWM technique is used to control the flow of power from the input to the output. Additionally, sync (synchronous) rectification is employed to convert the input voltage to the required output voltage.

The SRAH-12F1500 DC-DC converter has a microcontroller unit (MCU) to control the power conversion process. This MCU has an internal ROM to store the switching parameters, as well as a digital signal processor (DSP) to analyze and control the PWM waveforms. The DSP also acts as an on-chip watchdog to ensure reliable power conversion. In addition, the SRAH-12F1500 features an embedded EMI filter, which provides a lowpass filtering function to reduce noise and other electrical interference.

Conclusion

The SRAH-12F1500 is a 12 volt output, full-bridge, high-efficiency, converters that deliver 1500 watts of power. This type of DC-DC converter is suitable for a wide range of industrial and automotive control systems, and telecommunication system power supplies. It is equipped with a range of features, such as wide input and output voltage range from 0-72VDC and 13V to 42V respectively, high efficiency up to 97%, asynchronous PWM controller, remote On/Off control, soft switching techniques, sync (synchronous) rectification, and built-in EMI filter. The working principle of this converter makes use of two AC transformers and a microcontroller unit (MCU) to control the power conversion process.

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