VI20120C-E3/4W

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VI20120C-E3/4W Application Field and Working Principle

The VI20120C-E3/4W is a family of highly-efficient bridge rectifier arrays, designed for general purpose 12V DC power supply applications. These rectifier arrays are designed using Infineon\'s advanced switching element technology, offering low forward voltage drop, fast switching and high current capability, improving efficiency and minimizing power losses. This family of rectifiers can also be used in a wide range of other applications including LED lighting, security cameras, and even industrial and consumer level power supplies.

A bridge rectifier is an load that is generally used in AC to DC converters and voltage regulators. The bridge rectifier circuit produces a full-wave output from an AC input with a bridge arrangement of four diodes. During the positive half-cycle of the input AC, D2, D3 conduct and D1, D4 are reversed biased so the current flows via D2, D3 to the load. During the negative half-cycle, D1, D4 are forward biased, and D2, D3 are reverse biased, so the current flow is through D1D4 to the load.

VI20120C-E3/4W Component Components

The VI20120C-E3/4W is comprised of four diodes housed in a single package. The four diodes are electrically connected in a bridge configuration to produce a full-wave rectification. Each diode is optimized for a specific application and can be operated together if specified. All components have been Safety Integrity Level (SIL)-1 compliant for high reliability.

The four diodes are the fundamental components of the rectifier array. They are polarized, meaning they allow current to flow in only one direction. Each diode is rated for a maximum forward current rating of 700mA and a maximum reverse voltage of 20V. Atypical series resistance for each diode is 0.6 ohms. The capacitance of each diode is approximately 8pF.

VI20120C-E3/4W Applications

The VI20120C-E3/4W is primarily designed for use in 12V DC power supplies, such as those used in consumer electronics, medical equipment, and automotive applications. These rectifier arrays feature a low forward voltage drop, fast switching and high current capability, making them an excellent choice for efficient, high performance operations.

The rectifier array can also be used in other general purpose applications such as LED lighting, solar cell power supplies, switching mode power supplies, AC/DC converters, security cameras, industrial and consumer level power systems. Additionally, the VI20120C-E3/4W is made with SIL-1 compliant components, making it suitable for reliability-critical applications that require high levels of safety.

VI20120C-E3/4W Working Principle

The working principle of the VI20120C-E3/4W is based on the bridge rectifier configuration. This configuration produces full-wave rectification, which allows the rectifier to convert an alternating current (AC) output into a direct current (DC) output. During the positive half-cycle of the input AC, D2, D3 conduct and D1, D4 are reversed biased so the current flows via D2, D3 to the load. During the negative half-cycle, D1, D4 are forward biased, and D2, D3 are reverse biased, so the current flow is through D1D4 to the load.

The VI20120C-E3/4W offers a wide operating range from 6V to 18V, allowing the rectifier to be used in a variety of applications that span from general purpose to industrial power systems. It also features good temperature stability and wide ambient temperature range operation. Furthermore, the VI20120C-E3/4W is ESD protected to ensure reliable operations in unstable power conditions.

Conclusion

The VI20120C-E3/4W bridge rectifier array is a highly-efficient, cost-effective solution for 12V DC power applications. It offers a low forward voltage drop, fast switching and high current capability, improving efficiency and minimizing power losses. It is also suitable for a wide range of other applications including LED lighting, solar cell power supplies, switching mode power supplies and AC/DC converters. Furthermore, the VI20120C-E3/4W is ESD protected and SIL-1 compliant, making it suitable for reliability-critical applications.

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