Secondary Turns Valley Boundary Three-Row Scan - Electronic Circuits XIII: Power, Rectification, and Regulation Step by Step

Transformer turns are carried through rectifier loss and reservoir valley acceptance. Exact arithmetic here means exact results for the stated model inputs; measured inputs still carry uncertainty and significant-figure limits.

highlighted = computed this step

Secondary turns 2 sets reservoir margin

Primary source stays 24 V with 6 primary turns. Secondary turns 2 produce valley 4 V against the 8 V minimum, so margin is negative 4 V.

4\ \text{V}\mathbin{-}8\ \text{V}=-4\ \text{V}\Rightarrow\text{fail}

Secondary turns 3 sets reservoir margin

Primary source stays 24 V with 6 primary turns. Secondary turns 3 produce valley 8 V against the 8 V minimum, so margin is 0 V.

8\ \text{V}\mathbin{-}8\ \text{V}=0\ \text{V}\Rightarrow\text{pass}

Secondary turns 4 sets reservoir margin

Primary source stays 24 V with 6 primary turns. Secondary turns 4 produce valley 12 V against the 8 V minimum, so margin is 4 V.

12\ \text{V}\mathbin{-}8\ \text{V}=4\ \text{V}\Rightarrow\text{pass}