Difference between revisions of "TF EIM Chapt5"
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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 | 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> = Output voltage between Tap and Secondary | + | :<math>V_{out using Tap} = N_{Tap \rightarrow Finish} \frac{d \Phi}{dt} = V_{Finish} - V_{Tap}</math> = Output voltage between Tap and Secondary |
Where <math>T_{Tap} =</math> ground | Where <math>T_{Tap} =</math> ground | ||
+ | |||
+ | |||
+ | Since both coils see the same flux | ||
+ | |||
+ | :<math>\frac{d \Phi}{dt} = \frac{V_{in}}{N_1}= \frac{V_{out}}{N_2}</math> | ||
+ | |||
+ | |||
+ | :<math>\frac{V_{out}}{V_{in}}= \frac{N_2}{N_1}</math> | ||
==Full wave== | ==Full wave== |
Revision as of 04:07, 23 February 2011
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
The Transformer
A transformer uses inductors/coils to step voltages either up or down based on the ratio of the number of coil turns and .
Let represent the magnetic flux seen by the inductors due to the changing current in the primary.
- = Input Voltage on the Primary side
- = 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
- = Output voltage between Tap and Secondary
Where
ground
Since both coils see the same flux
: