VUO55-12NO7

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A diode bridge rectifier is an arrangement of four diodes given in a bridge form, providing an output which is correctly polarised for the full-wave rectification of alternating current. The VUO55-12NO7 is a 600 Volt Bridge Rectifier that has a maximum average forward current of 55 Amps and a maximum Forward Voltage Drop of 1.2 Volt.

This diode bridge rectifier is widely used in different applications such as power supplies, battery chargers, motor control and AC signal rectification, allowing only one direction current to flow through the electrical circuit.

Working Principle

A bridge rectifier is utilised to convert an alternating current (AC) signal into a direct current (DC) signal. It consist of four terminals namely Anode A, Anode B, Cathode A and Cathode B. An external AC voltage is applied to the Anodes A and B, while the Cathodes A and B are connected to the output load. When the voltage is applied, diodes D1, D2 and D3, D4 turn on and conduct current in sequence. As the sequence carries on current flows from Anode A to Cathode A, from Anode A to Cathode B and from Anode B to Cathode B creating an output voltage that is proportional to the input voltage. When the cycle of the AC signal changes and the load is removed the power is switched off and the bridge turns off.

The VUO55-12NO7 Bridge Rectifier is a high-quality and reliable product which is manufactured by advanced process with thermal management features. It has a maximum total power dissipation of 105W, a maximum power dissipation of 17.5 W/1 Amp of current and it can operate safely at ambient temperatures up to 135°C.

Advantages

The VUO55-12NO7 offers both cost and performance advantages over other diode bridge rectifiers:

• Low forward voltage drop, it consumes less energy and the power dissipation is lower.
• Good surge current handling capability for reliable operation.
• Compact design for ease of installation and improved thermal performance.
• High reliability and long life expectancy.

Applications

The VUO55-12NO7 is designed for use in power supplies, motor control circuits and AC signal rectification, and is typically used in the following types of applications:

• Uninterruptible power-supplies (UPSs)
• Battery charging systems
• Switching power supplies
• Power tools, appliances and other consumer electronics
• Automotive components
• Chopping circuits
• Induction heating elements
• Lighting fixtures

Conclusion

The VUO55-12NO7 is a state-of-the-art diode bridge rectifier that is designed for cost-efficient power supply and AC signal rectification applications. It offers fast and accurate current control, high surge capability and improved thermal performance. This diode bridge rectifier is easy to install and can operate safely in environments with ambient temperatures up to 135°C.

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