BR61

Diodes - Bridge Rectifiers

Bridge Rectifiers (BRs) generally have four to six diodes connected in a bridge circuit, which allow an alternating current to be applied to the bridge circuit to produce a unidirectional DC output. The most common type of BR is the four-diode bridge rectifier, also known as a full-wave or dual-voltage bridge.

A BR61 is a type of four-diode bridge rectifier commonly used in AC-DC power supplies. It is designed to be compact and robust, with a metal case and a peak current rating of 6 A. In operation, the bridge rectifier works by rectifying alternating current from the source into a unidirectional current in the output terminal.

Application Fields

BR61 bridge rectifiers are widely used for a variety of applications, ranging from consumer electronics to light industrial uses. They are commonly used in switched-mode power supplies, which require high frequency switching operations. Additionally, they are used in automotive charging systems, small battery chargers and other applications which require higher power ratings.

The BR61 bridge rectifier is also used in digital systems such as cell phones, smart home products and PCs. It can be used to power the operations of such devices, converting the alternating input voltage into a steady DC voltage. Additionally, their robust design and low temperature risings make them suitable for temperature sensitive applications.

Working Principle

When alternating current passes through the bridge rectifier circuit, four diodes (A, B, C and D) connected in the form of a bridge conduct in an anti-parallel manner. This means that when terminal A is positive with respect to terminal B, diode A will conduct and diode D will act as an open switch. On the other hand, when terminal B is positive with respect to terminal A, diode D will conduct and diode A will act as an open switch.

The current released by the diodes passes through the output terminal and results in a unidirectional DC current. This current will depend on the magnitude of the input voltage which is being rectified. The maximum current that can be released by the BR61 is 6 A.

Moreover, when the AC input voltage is further increased, the bridge rectifier will start to rectify the current more rapidly, providing a smoother and more efficient output current. The internal heatsink of the BR61 helps to dissipate heat generated during the rectification process, thus increasing the device\'s life expectancy.

Conclusion

In conclusion, BR61 bridge rectifiers are widely used in a range of AC-DC power supplies, providing a unidirectional DC output from an alternating input source. Their metal case, peak current rating of 6 A, and internal heatsink make them a reliable and durable solution for a variety of applications.