8TQ100S

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Single phase rectifiers are one type of power converter, and power converters are used in a wide range of applications such as controlling the speed of motors, telecommunications, and aerospace systems. The 8TQ100S is a monolithic single-phase bridge rectifier which enjoys wide application in various industrial fields ranging from consumer electronics and lighting to automotive, automation and medical applications. By providing full wave rectification without the need for a conventional center-tapped diode, this device offers an efficient and easy-to-use solution for power conversion applications.

8TQ100S: A Brief Overview

The 8TQ100S full bridge rectifier is a monolithic integrated circuit housed in the TO-220 package. It features a low height profile which makes it suitable for board designs with higher requirements. This device has a forward voltage drop of 0.8V with a current rating of 100A continuous and surge current of 130A. It offers excellent thermal performance with a additional scope of improvement thanks to its exposed upper tab. From the main structural point of view, this power converter includes four TrenchMOS emulation transistors which are used to control the voltage and current rectification process.

8TQ100S Application Fields

The 8TQ100S bridge rectifier is mainly utilized in applications that require highly efficient and effective control of voltage and current such as charging systems, UPSs, switching power supplies, DC/DC converters, etc. Moreover, this device can be employed in different types of electronic applications like home appliance and electric vehicles since it provides top-grade performance in terms of power efficiency and reliability. The 8TQ100S is also well-suited for electric circuit implementations since it has a low forward voltage drop (<0.8V), requiring minimum number of passive power components.

Working Principle

The 8TQ100S bridge rectifier operates on a single-phase full-bridge topology. This rectifier comprises four TrenchMOS emulation transistors (T1-T4) which are the active components of this device. The 8TQ100S functions as a full-wave rectifier when connected to an AC source. The transistors act as switches that alternately open and close, in order to transfer the entire AC signal to the output load. The changes of the transistors are controlled by the signal from the gate, so that current is forced to flow from the input to the output of the device.

Benefits, Advantages and Drawbacks

The 8TQ100S is a great choice when employing single-phase bridge power converters, especially when requiring a low forward voltage drop. Further, this kind of rectifier eliminates the need for center-tapped diodes and delivers improved power efficiency, as well as a better thermal performance. However, one of its drawbacks is that, since it has strong resistance to reverse polarity current, it might act as a short-circuit path and damage the device, especially when working with large amounts of power.

Conclusion

The 8TQ100S is a single-phase bridge rectifier which finds wide usage in various industrial fields, ranging from consumer electronics to automotive and even medical applications. This device enjoys very high efficiency and reliability, making it a great choice for different types of power conversion applications. Its low forward voltage drop (<0.8V) greatly decreases the number of passive power components required to use it. This bridge rectifier offers many advantages, but it also has one major disadvantage which is its strong resistance to reverse polarity current.

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