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Back to the Bridge. Which resistors are in series? Which resistors are in parallel?. Delta ( Δ ) Connection. Resistors R 1 , R 2 , and R m (or R 3 , R m , and R x ) are in a Delta ( Δ ), or pi ( π ) connection. Wye (Y) Connection.
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Back to the Bridge • Which resistors are in series? • Which resistors are in parallel? ECE 201 Circuit Theory I
Delta (Δ) Connection • Resistors R1, R2, and Rm (or R3, Rm, and Rx) are in a Delta (Δ), or pi (π) connection. ECE 201 Circuit Theory I
Wye (Y) Connection • Resistors R1, Rm, and R3 (or R2, Rm, and Rx) are in a wye (Y), or tee (T) connection. ECE 201 Circuit Theory I
Δ – Y Conversion ECE 201 Circuit Theory I
Δ – Y Conversion (continued) • The resistance between the terminal pairs must be the same for both circuits ECE 201 Circuit Theory I
Δ – Y Conversion (continued) • After some algebraic manipulation ECE 201 Circuit Theory I
Y – Δ Conversion ECE 201 Circuit Theory I
Y – Δ Conversion (continued) • The resistance between the terminal pairs must be the same for both circuits ECE 201 Circuit Theory I
Y – Δ Conversion (continued) • After some algebraic manipulation ECE 201 Circuit Theory I