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Diodes - Rectifiers - Arrays

A VA40100C-M3/4W rectifier is a type of electrical device used to rectify alternating currents into direct currents. This rectifier is a four-phase device, consisting of four individual diode-connected Thyristors operating in anti-parallel to each other, forming an effective four-phase bridge rectifier. It has a rated current of up to 400A and a voltage recovery time of 1ms.

Application Field

The VA40100C-M3/4W rectifier can be applied in many different fields. It can be used as a power supply for uninterruptible power systems, cooling systems, and security systems, as well as providing DC power to LED lighting systems, stepper motor control systems, and large electronic displays. It can also be used in the energy, telecom, automotive and military industries where reliable DC power is required.

Working Principle

The VA40100C-M3/4W rectifier works in a similar way as any other rectifier, using Thyristors to switch the current from a positive AC cycle to a negative AC cycle. The four-phase bridge rectifier then converts alternating current into unidirectional current, forming direct current. The Thyristors used in the rectifier are connected in anti-parallel, which means the current flows through only one of the diodes at a time. When the current changes polarity, the current through the diodes swaps, allowing current to flow in the opposite direction.

The rectifier also features a voltage recovery time of 1ms, meaning it can quickly switch between the positive and negative AC cycles. This is an important feature in any rectifier and is particularly useful in uninterruptible power systems, where the rectifier needs to switch quickly to avoid power outage.

The VA40100C-M3/4W rectifier is well-suited to many applications where reliable DC power is required and is an ideal choice for a variety of settings from industrial to domestic.

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