Isolated Step-Down AC Load

Application

Use this circuit to explore basic isolated AC step-down behavior before rectification or regulation.

Design Context

A sine source drives the primary winding while the secondary winding feeds a resistive load with its own isolated return.

Expected Behavior

Vsec follows Vpri with the configured turns ratio, and Iload shows the secondary load current.

Key Values

• VIN is a 10 V, 60 Hz sine source.
• T1 uses a 0.5 turns ratio.
• RLOAD is 100 ohm.

Suggested Experiments

• Change the turns ratio and compare Vsec.
• Change RLOAD and observe secondary current.
• Compare primary and secondary references.

Featured Component

The transformer component generates coupled inductors with an optional center tap for split-secondary applications.