Desired Output Voltage * Volts (V)

Maximum Load Current * Amperes (A)

Input Voltage (AC) * Volts (V RMS)

Regulator Dropout Voltage Volts (V)

Max Ripple Voltage Volts (V pk-pk)

Efficiency Factor Transformer efficiency

12V, 1A (Standard) 5V, 2A (Logic) 15V, 0.5A (US 120V) 24V, 0.5A (Op-amp)

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Power supply specifications

Power Supply

🔌 AC Input

— V

→

🔄 Transformer

— VA

→

🔽 Rectifier

— A

→

⚡ Filter

— µF

→

📊 Regulator

— V

→

✅ Output

— V

For 12V output at 1A, use a LM7812 regulator with a 2200µF filter capacitor and a 18VA transformer.