Electricity: battery or capacitor charging or discharging – Serially connected batteries or cells – With discharge of cells or batteries
Patent
1989-07-24
1991-02-12
Wong, Peter S.
Electricity: battery or capacitor charging or discharging
Serially connected batteries or cells
With discharge of cells or batteries
307110, 363 59, H02M 3335
Patent
active
049927191
ABSTRACT:
A high voltage stable pulse power supply 10 which includes a first power supply 11, ; a first capacitor 12 ; connected in parallel with the first power supply, a first switch 13 mounted in parallel with the first capacitor 12. The switch 13 selectively connects the first capacitor 12 to a load 14 so that the first capacitor 12 may discharge therethrough. An anti-droop network 15 is connected in series with the first capacitor 12. The anti-droop network 15 cancels droop in the output of the first capacitor 12 as it discharges into the load 14.
In a specific embodiment, the anti-droop network 15 includes an inductive element 42 connected in series with the first capacitor 12 which is charged just prior to the activation of the first switch 13. The inductor 42 provides energy to compensate for the droop in the energy supplied by the first capacitor 12. In a more specific embodiment, the first switch 12 is implemented with a Crossatron switch 31 and a modulating anode electron gun 32 to minimize system control voltages.
The present invention achieves coherent emission in a free electron laser, for long pulses, allowing selection of single modes.
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R. J. Harvey et al., "High Voltage Power Supply Design for the Hughes Mark-II FEL", IECED, vol. 3, Paper 889479, 7/31-8/5/88, pp. 755-757.
Coble P. M.
Denson-Low W. K.
Duraiswamy V. D.
Hughes Aircraft Company
Wong Peter S.
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