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Bridge rectifier is also called rectifier bridge stack, is the most commonly used circuit that uses the unidirectional conductivity of diodes for rectification, and is often used to convert alternating current into direct current.

most rectifier circuits are composed of transformers, rectifier main circuits and filters. It is widely used in the fields of DC motor speed regulation, generator excitation regulation, electrolysis, electroplating and other fields.

the main circuit is mostly composed of silicon diode rectifiers and thyristors. the filter is connected between the main circuit and the load to filter out AC components in the pulsating DC voltage. the setting of the transformer depends on the specific situation. the function of the transformer is to achieve the matching between the AC input voltage and the DC output voltage and the electrical isolation between the AC power grid and the rectifier circuit.

the function of the rectifier circuit is to convert the low-voltage alternating current output by the AC step-down circuit into a unidirectional pulsating direct current. this is the rectification process of the alternating current. the rectifier circuit is mainly composed of rectifier diodes.

the voltage after the rectifier circuit is no longer AC voltage, but a mixed voltage containing DC voltage and AC voltage. It is customarily called unidirectional pulsating DC voltage.

in the half-wave rectifier circuit, when the rectifier diode is cut off, the peak value of the AC voltage is all added to both ends of the diode. the same is true for the full-wave rectifier circuit. When one diode is turned on, the other diode is turned off and bears the full AC peak voltage. Therefore, for these two rectifier circuits, the rectifier diode of the circuit is required to have a higher ability to withstand reverse peak voltage.

50A 1000V Square Single Phase Bridge Rectifiers BR5010 is in the following photo as a good example.

Part Number: BR5010 

Type:  Single Phase Bridge Rectifiers 

Termination Style: through Hole

Package / Case: BR-50

If - Forward Current: 50 A

Peak Reverse Voltage:  1000 V

Vr - Reverse Voltage: 700 V

Packaging: Bulk

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