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WEET Measurement Method of Square, Flat, Round, Patch MINI Bridge Rectifier

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Measurement method of Bridge Rectifier:

The measurement method of the rectifier bridge stack is to use a multimeter to measure.

Measurement method: when normal, the forward and reverse resistances of the two AC input terminals ("~") of the full bridge are both infinite; the forward resistance of the "+""-" input terminal is infinite, and the reverse resistance (connected with red pen) "+", black pen connected to "-" end) is about 20K. Assuming to check with a digital universal meter (diode) file, the red pen is connected to "-', the black test pen is connected to "+" is 0.8; two "~" are connected are about 0.4, the red pen is connected to "+", the black pen is connected to the other three pins It must be infinite, otherwise it is a damaged rectifier.

The rectifier full bridge is composed of four diodes with four lead-out pins: the connection point of the negative poles of the two diodes is the "positive" of the DC output end of the full bridge, and the connection point of the anodes of the two diodes is the "negative" of the DC output end of the full bridge. The half bridge is composed of two diodes with three lead-out pins.

The pins on both sides of the positive half-bridge are the anodes of the two diodes, that is, the AC input terminal; the middle pins are the cathodes of the two diodes, that is, the "positive" of the DC output terminal. The negative poles of the two diodes on the pins on both sides of the negative half bridge are the AC input terminals; the middle pin is the positive poles of the two diodes, that is, the "negative poles" of the DC output terminals.

1. The basic principle of the rectifier bridge stack: The rectifier bridge stack product is made of four rectifier silicon chips for bridge connection and externally packaged with insulating plastic. The high-power rectifier bridge is encapsulated with a zinc metal shell outside the insulating layer to enhance heat dissipation. There are many types of rectifier bridges: flat, round, square, bench-shaped (in-line and patch), etc. There are GPP and O/J structures.

The maximum rectified current ranges from 0.5A to 100A, and the maximum reverse peak voltage ranges from 50V to 1600V. The half bridge is to seal the half of the two diode bridge rectifiers together. Two half bridges can form a bridge rectifier circuit, and a half bridge can also form a full wave rectifier circuit with a center tap of the transformer.

The full bridge is composed of 4 rectifier diodes connected in the form of a bridge full-wave rectifier circuit and packaged as a whole. The forward current of the full bridge has various specifications such as 0.5A, 1A, 1.5A, 2A, 2.5A, 3A, 5A, 10A, 20A, 35A, 50A, etc. The withstand voltage (the highest reverse voltage) is 25V, 50V, 100V, 200V, 300V, 400V, 500V, 600V, 800V, 1000V and other specifications.

2. Package form There are four types of rectifier bridge packages: square bridge, flat bridge, round bridge, and patch MINI bridge. The main packages of square bridges are (BR3, BR6, BR8, GBPC, KBPC, KBPC-W, GBPC-W, MT-35 (three-phase bridge)); the main packages of flat bridges are (KBP, KBL, KBU, KBJ, GBU, GBJ, D3K); round bridges are mainly packaged (WOB, WOM, RB-1); SMD MINI bridges are mainly packaged (BDS, MBS, MBF, ABS).

The following is piture for Flat Bridge Rectifier GBJ 50A 1000V GBJ5010

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Written by WEE Technology Company Limited

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