Document Abstract
Coulomb crystallization in dusty plasmas is of great interest in recent years. The Control of fine particle behavior in Coulomb Crystallization Experiments requires low frequency particle driving, which involves injection of alternating voltages at low frequencies. With a repetition period shorter than the particle response time, the particles feel only time-averaged force because of large mass. Also in case of dusty plasma, one needs to excite dust acoustic wave for which low frequency perturbation of higher amplitude are required, depending upon the dust size. To perform such experiments, High Voltage power supply with variable voltage and variable frequency is required. Moreover, the power
supply should be highly regulated and short circuit protected. Such low frequency, high voltage pulse generator are not commercially available and hence requires special design. To satisfy the above requirements a microcontroller based variable frequency, variable amplitude, regulated high voltage power supply is designed and developed indigenously in RF Group. The paper deals with the Design, Development and Testing of 0 to1000V (pp), 1 to 10Hz, 10mA regulated power supply.