A High Frequency and High Voltage Sine Wave Negative Feedback System
Abstract
To stabilize the nanosecond beam system of an accelerator,a high frequency and high voltage sine wave signal negative feedback system is developed.Steady amplitude signal are produced by arbitrary generators,then the signal are sent to bunching system of the accelerator by a high frequency power amplifier.An antenna sensor designed is used for sampling the high frequency high voltage signal from power amplifier without contacting.Analog digit transition is implemented by a storage oscillograph,and the digit signal can realize lossless transmission at long distance.LabView software is applied to the control program of microcomputer.The microcomputer accepts the test signal from oscillograph and adjusts the amplitude from arbitrary generators through the GPIB bus.1% amplitude stability of high frequency and high voltage signal from power amplifier is achieved by using negative feedback system.