International Rectifier India offers Fixed/ Variable Frequency Resonant Controller. International Rectifier India supplies a wide range of power management products like circuit devices, power systems and components based on digital, analog and mixed-signal ICs. The Fixed/ Variable Frequency Resonant Controller is a 600V Half Bridge High Voltage Controller IC for DC-DC Resonant Converters with Over current Vs Threshold fixed at 2V. The Fixed/ Variable Frequency Resonant Controller operates on an Offset Voltage of 600 V.