TF EIM Chapt5

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Half Wave rectifier

A half wave rectifier is a circuit which passes only half of the input AC waveform.

This is accomplished by using the diode's forward drop voltage to "clip" the AC signal.


Consider the following circuit

TF EIM Lab10 HW Rectifier.png

The Transformer

TF EIM Transformer.png


A transformer uses inductors/coils to step voltages either up or down based on the ratio of the number of coil turns[math]N_1[/math] and [math]N_2[/math].


Let [math]\Phi[/math] represent the magnetic flux seen by the inductors due to the changing current in the primary.

[math]V_{in} = N_1 \frac{d \Phi}{dt}[/math] = Input Voltage on the Primary side
[math]V_{out} = N_2 \frac{d \Phi}{dt} = V_{Finish} - V_{Start}[/math] = Output Voltage on the Secondary


The ground is relative for a transfer. You could use the "Tap" or center post as a ground and either the Start or Finish end

[math]V_{out} = N_{Tap \Rightarrow Finish} \frac{d \Phi}{dt} = V_{Finish} - V_{Tap}[/math]

Where [math]T_{Tap} =[/math] ground

Full wave