VS-95PFR140W

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

VS-95PFR140W is a single-phase rectifier bridge with a maximum current rating of 140 A. This rectifier bridge has been designed with a reverse-recovery time of less than 2 ms, allowing it to work at high temperatures and in applications requiring either low noise or high-frequency switching, such as in high-efficiency power supplies, regenerative drives, uninterruptible power supplies, and so on. The VS-95PFR140W is suitable for a variety of applications, including automotive, lighting, industrial, and telecommunications.

Single-phase rectifiers are used in the majority of power conversion applications, transforming ac current into dc current or vice versa. Rectifiers are composed of several diodes, arranged in either a full-wave or a half-wave configuration, depending on the type of application. The most commonly used rectifier topology is the full-wave diode bridge rectifier, which is capable of providing a direct current from an alternating current source.

The VS-95PFR140W bridge rectifier is composed of four silicon-controlled rectifiers (SCR) in a full-wave bridge configuration. As the SCR is an unidirectional device, it is ideal for this kind of application. The four SCR are arranged in a bridge configuration, the input being connected between diagonally opposite arms, and the output from the centre of the bridge. In this configuration, a positive input voltage applies a forward bias to two SCRs and a negative input voltage applies a forward bias to the remaining two SCRs, with all four devices conducting in pairs to provide a full-wave rectification. The output current is then symmetrical at both positive and negative ac alternating current phases, with a ripple factor of less than 3%

The VS-95PFR140W also features a reverse recovery-time of less than 2ms and high-temperature capability up to 150°C. This is achieved by adding a sensing resistor between the anode and cathode of the SCR devices in order to reduce the reverse recovery time. This enables the bridge rectifier to switch quickly and stay within the low-noise characteristics required for uninterruptible power supplies and regenerative drives.

The VS-95PFR140W also features a number of protective features, such as over-temperature protection and over-current protection, making it a reliable and durable device in high-performance applications. The over-current protection is achieved by integrating a resetting timer into the device to protect the bridge rectifier from damage caused by over-load currents.

In summary, the VS-95PFR140W is a single-phase bridge rectifier designed for a variety of high-performance applications, such as automotive, lighting, industrial, and telecommunications. It is capable of providing a direct current from an alternating current source with a ripple factor of less than 3% and reverse recovery-time of less than 2ms. It also features protective features such as over-temperature and over-current protection, making it a reliable and durable device.

The specific data is subject to PDF, and the above content is for reference