STMGFW154812-JN1

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DC-DC converters are commonly used in many applications due to their ability to convert a source of direct current (DC) power from one voltage to another. The STMGFW154812-JN1 is a type of DC-DC converter that offers an adjustable output voltage and current range. This converter offers a wide range of input voltages from 4V to 36V, and can produce an adjustable output voltage ranging from 0.95V to 31V.

The STMGFW154812-JN1 converter is a non-isolated DC-DC module, which means it does not use an optocoupler or transformer to allow the conversion process. Instead, it utilizes a high frequency, pulse-width modulated (PWM) switch mode design with an integrated inductor to provide the requisite voltage and current range. It is capable of delivering up to 1.5A of continuous current with a high efficiency of up to 98% and at a switching frequency of 1MHz.

The STMGFW154812-JN1 converter has a wide variety of applications due to its small size and efficient performance. It is widely used in automotive systems, LCD and LED lighting, wireless communication systems, medical equipment, industrial automation, and other applications. The converter can also be used to power portable devices such as laptops, tablets, and mobiles phones.

The working principle of the STMGFW154812-JN1 DC-DC converter is based on the principle of pulse-width modulation (PWM). Pulsed-width modulation (PWM) is a process in which the output voltage of the converter is controlled by varying the pulse-width widths of the output. By varying the pulse-width, the output voltage of the converter can be adjusted to suit the requirements of the application. The PWM control circuit of the converter is comprised of a comparator, an oscillator, and a power-on reset circuit.

The comparator circuit monitors the output voltage and compares it to a constant reference voltage. If the output voltage is above the reference voltage, the output is shut-off by stopping the oscillator circuit which controls the pulse-width of the output. Conversely, when the output voltage is below the reference voltage, the oscillator is enabled to increase the pulse-width and increase the output voltage.

The power-on reset circuit ensures that the output voltage is maintained at a steady level when the power is switched on. After the power-on reset, the DC-DC converter resumes to its normal forward operation, continuously monitoring and maintaining the output voltage with the help of the comparator and oscillator circuits.

In summary, the STMGFW154812-JN1 DC-DC converter is an efficient and compact solution for applications requiring an adjustable output voltage and current range. It is a non-isolated DC-DC module, utilizing a high-frequency PWM switch mode design with an integrated inductor for efficient power conversion. The working principle of the converter is based on the principle of pulse-width modulation (PWM), enabling adjustable output voltage with high efficiency and stability.

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