All About Diodes part-7

Application: 

Diodes are used in various applications like rectification, clipper, clamper, voltage multiplier, comparator, sampling gates and filters.

1.      Rectification – The rectification means converting AC voltage into DC voltage. The common rectification circuits are half wave rectifier (HWR), full wave rectifier (FWR) and bridge rectifier.

·                     Half wave rectifier: This circuit rectifies either positive or negative pulse of the input AC. The figure is as shown below:   

·                     Full wave rectifier: This circuit converts the entire AC signal into DC. The figure is as shown below:

·                     Bridge rectifier: This circuit converts the entire AC signal into DC. The figure is as shown below:

2.      Clipper- Diode can be used to clip off some portion of pulse without distorting the remaining part of the waveform. The figure is as shown below:

3.      Clamper – A clamping circuit restricts the voltage levels to exceed a limit by shifting the DC level. The peak to peak is not affected by clamping. Diodes with resistors and capacitors are used to make clamping circuits. Sometimes independent DC sources can be used to provide additional shift. The figure is as shown below: 

source: engineersgarage.com