Single-phase bridge rectifier circuit diagram and working principle

GW MB10F 0.8A 1000V rectifier bridge
Probe current voltage pin 420*4450 head diameter 5.0 over current current and voltage pin

1. Working principle The single-phase bridge rectifier circuit is the most basic circuit for converting AC to DC. The circuit is shown in Figure 10.1.2.
/> < /> Figure 10.1.2 Single-Phase Bridge Rectifier Circuit (a) Rectifier Circuit (b) Waveform Diagram When analyzing the working principle of the rectifier circuit, the diode in the rectifier circuit is used as a switch Used, it has unidirectional conductivity. According to the circuit diagram of Fig. 10.1.2(a), the diodes D1 and D3 are turned on during the positive half cycle, and the positive half cycle of the sine wave is obtained on the load resistor. When the negative half cycle, the diodes D2, D4 are turned on, and the negative half cycle of the sine wave is obtained on the load resistance. The positive and negative half cycles of the load resistance are combined to obtain a unidirectional ripple voltage in the same direction. The waveform of the single-phase bridge rectifier circuit is shown in Figure 10.1.2(b). 2. Parameter calculation According to Fig. 10.1.2 (b), the output voltage is a single-phase ripple voltage. It is usually equivalent to the DC voltage. <img src="http://i.bosscdn.com/blog/20/17/10/2516533712927.jpg" alt=

The pulsating voltage flowing through the load contains a DC component and an AC component, and the pulsating voltage can be subjected to Fourier analysis. At this time, the second harmonic amplitude in the harmonic component is the largest, and the ratio of the amplitude of the lowest harmonic to the average value is called the pulsation coefficient S.
/> 3. Load characteristic curve of single-phase bridge rectifier circuit The load characteristic curve of single-phase bridge rectifier circuit refers to the relationship between output voltage and load current. The curve is shown in Figure 10.1. 3 is shown. The slope of the curve represents the internal resistance of the rectifier circuit. <img src="http://i.bosscdn.com/blog/20/17/10/2516535383677.jpg" alt=
Figure 10.1.3 Load characteristic curve

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