The Spiral2 driver uses a slow chopper situated in the common section of the low energy beam transport line to change the beam intensity, to cut off the beam in case of critical loss and to avoid hitting the wheel structure of rotating targets. The device has to work up to 10 kV, 1 kHz repetition frequency rate and its design is based on standard power circuits, standard vacuum feed-through and...

Two different arrangements for Wireless Battery Charging Systems (WBCSs) with a series-parallel resonant topology have been analyzed in this paper. The first arrangement charges the battery by controlling receiver-side rectifier current and voltage without chopper, while second it chopper keeping input constant. comparison of these two is made based on their performance various figures merit, s...

that a shockload of 45 kW should be allowed. The desien of The development of a simple chopper harvester is described and ways in which this complicated machine might be simplified are suggested. The decisions taken and some of the specially designed components used in 'building the machine are described and the difficulties experienced during its operation and their solution are explained.

Applications of MEMS variable capacitive sensors are introduced. The design trade-offs of variable capacitive sense amplifiers are discussed and a chopper stabilized variable capacitive sense amplifier topology is introduced. The chopper stabilized topology has the advantage of not being sensitive to 1/f noise, charge injection noise, kT/C noise, and dc offsets. This circuit was designed to mee...