R2D10-1212/P-R

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DC-DC converters are electrical circuits used to convert a DC input voltage into a higher or lower DC output voltage. The R2D10-1212/P-R is a PWM switching DC-DC converter with integrated control and rectifying circuits. The device has a wide range of applications and its working principle is explained in this article.

Applications of R2D10-1212/P-R

The R2D10-1212/P-R DC-DC converter is designed to provide regulated outputs from 12 V or 24 V sources. It can be used in a wide range of applications, including automotive, telecom and military applications. Its low output ripple, high efficiency and high switching frequency make it suitable for industrial applications such as variable-speed motor control, HID or fluorescent lighting control, buck-boost converters, and solar panel regulation. It can also be used for auxiliary power supplies in semiconductor manufacturing equipment.

Working Principle of R2D10-1212/P-R

The R2D10-1212/P-R DC-DC converter uses a synchronous buck converter topology to provide a regulated output with low output ripple. The device includes a main power switch (Q1), a synchronous rectifier (Q2), an integrated control circuit with a high-efficiency Buck Control PWM circuit, and protective circuits. It also includes a high-frequency transformer with primary and secondary coils.

The device operates in a quasi-resonant mode, which means that the ON time of the main switch (Q1) is determined by the secondary-side Vin and the duty cycle is measured using the primary-side current. As the input voltage increases, the switching frequency of the power switch (Q1) also increases. This results in a reduced peak current in the primary winding, thereby improving the overall efficiency of the converter.

The power switch (Q1) operates at a fixed switching frequency and the output voltage is regulated by pulse width modulation. The input voltage is sensed and compared with the internal reference voltage. An error signal is generated by the error amplifier, which is used to control the PWM circuit. The control circuit modulates the duty cycle of the pulse width modulation to regulate the output voltage.

Conclusion

The R2D10-1212/P-R DC-DC converter is ideal for a wide range of applications. Its synchronous buck converter topology provides a regulated output with low output ripple and high efficiency. The device operates in a quasi-resonant mode and the output voltage is regulated using a pulse width modulation control circuit. The device is also protected against over-voltage, over-temperature, and other fault conditions.

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