4 Simple DescriptionTransformer: “Downconvert” the AC line voltage to a smaller peak voltage Vm, usually about 2-3 Volts larger than the ultimately desired DC output.Diode Rectifier Circuit: produce a waveform with large DC component.Filter: smooth out the rectified sinusoid.Regulator: eliminate residual ripple
5 c03f34 Half-Wave Rectifier Tin Cause of ripple: the capacitor is discharged for almost an entire period.
6 c03f36inversionRipple Reduction: Do not allow the capacitor to discharge so frequently
7 An Inverting Half-Wave Rectifier If Vin >0, D1 and D2 are off.If Vin <0, D1 and D2 are on and Vout>0.
8 An Non-Inverting Half-Wave Rectifier If Vin >0, D1 and D2 are on, Vout>0.If Vin <0, D1 and D2 are off.