Required recharge energy and sector capacitor voltage are given in Table 4.2 for the phase one accelerator with the low and high energy transfer demands. The initial voltage on the sector capacitor was assumed to be 750 volts (the nominal design) and efficiencies from Table 4.1 were used. Several other requirements placed on the recharge system were a) that the time of recharging be approximately ) switching be done as to prevent voltage spikes (from forced commutation) so that the SCR's in the drive circuit would not be destroyed, c) polarity reversing switching be used to enable recharge on both polarities of the sector capacitor, and d) that the control circuitry be as simple as possible. Table 4.2 Phase One Accelerator Recharge Requirements for Low and High Demand () Low High Firing Number Recharge Energy (J) Final Cap. Voltage (volts) Recharge Energy (J) Final Cap. Voltage (volts) 1 335 483 417 390 3 351 467 433 369 5 339 479 421 385 7 350 468 432 370 9 328 490 410 398 11 — — — — 13 321 497 403 407 15 329 489 411 397 17 316 502 398 413 19 — — — —
RkJQdWJsaXNoZXIy MTU5NjU0Mg==