Power Supply Ripple Calculator

This calculator helps engineers and electronics enthusiasts determine the ripple voltage in a power supply circuit. Ripple voltage is an unwanted AC component superimposed on the DC output of a power supply, often caused by insufficient filtering or high load currents. Accurately calculating ripple is critical for designing stable power systems.

Key Features:

• Calculates ripple voltage based on load current, capacitor value, and frequency
• Supports both full-wave and half-wave rectifier configurations
• Provides results in peak-to-peak or RMS ripple voltage
• Includes safety margin recommendations for critical applications

Usage Instructions:

1. Select your rectifier type (full-wave or half-wave)
2. Enter the load current in amperes
3. Input the smoothing capacitor value in microfarads
4. Specify the AC line frequency (typically 50Hz or 60Hz)
5. Click "Calculate" to view the ripple voltage results

Example Calculation:

Important Notes:

• For critical analog circuits, aim for ripple below 10mV
• Higher capacitance values reduce ripple but increase size and cost
• Consider using voltage regulators for additional ripple reduction
• Actual ripple may be higher due to capacitor ESR and other factors

This calculator provides theoretical values - always verify with oscilloscope measurements in your actual circuit. The tool is particularly useful during the prototyping phase of power supply design.