Series Rectifier with Capacitor Filter

     To provide a stable DC output, the filter circuit to smooth the DC voltage. Half-wave rectifier is rarely used because it is inefficient and requires a grading capacitors are relatively large.

Picture 1. Wave rectifier with filter C

Figure 1 is a series of full wave rectifier with filter capacitor C is parallel to the load R. By adding this filter output voltage waveform becomes more flat. Figure 2 shows the DC voltage output from a series of half wave rectifier with capacitor filter

Picture 2. Wave output with filter C