Half-wave rectifier circuit principle


Posted on Mar 28, 2007

Bridge rectifier capacitor filter is one of the main power supply of the current amplifier circuit, such a power supply circuit configuration simple one, better performance. A


Half-wave rectifier circuit principle
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bridge rectifier circuit is a full-wave rectifying circuit, i.e. in the AC power supply both positive and negative half cycles have a DC output. To illustrate how it works, start with about half crossing the rectifier circuit. Figure 7-1 is a half-wave rectifying circuit diagram of the road works. In the drawing power transformer secondary AC voltage e2 E pumping. E2 sin called sin should be the foundation, which the transformer secondary AC voltage E2 has saved values. AC positive half cycle, l is a positive side, 2 side is negative, rectifier VD conduction, the output current to the load RL o in the negative half cycle, l side is negative, the second end is positive, reverse bias rectifier VD nonconductive, no current load circuit. Therefore, during each cycle of the AC voltage, the load current through only half cycle current, load voltage Vd is unidirectional pulsating DC voltage, shown in Figure 7-1 (b). A cycle of AC Ji is 2, the entire stream after the DC output voltage can be expressed as:




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