Electric lamp and discharge devices: systems – Pulsating or a.c. supply – Plural load device systems
Patent
1980-11-07
1983-08-09
Chatmon, Jr., Saxfield
Electric lamp and discharge devices: systems
Pulsating or a.c. supply
Plural load device systems
315239, 315240, 315244, 331113A, 336172, 328 67, H01J 2300, H01J 2334, H05H 700
Patent
active
043981569
ABSTRACT:
A switching system for delivering pulses of power from a source (10) to a load (20) using a storage capacitor (C3) charged through a rectifier (D1, D2), and maintained charged to a reference voltage level by a transistor switch (Q1) and voltage comparator (12). A thyristor (22) is triggered to discharge the storage capacitor through a saturable reactor (18) and fractional turn saturable transformer (16) having a secondary to primary turn ratio N of n:l
=n.sup.2. The saturable reactor (18) functions as a "soaker" while the thyristor reaches saturation, and then switches to a low impedance state. The saturable transformer functions as a switching transformer with high impedance while a load coupling capacitor (C4) charges, and then switches to a low impedance state to dump the charge of the storage capacitor (C3) into the load through the coupling capacitor (C4). The transformer is comprised of a multilayer core (26) having two secondary windings (28, 30) tightly wound and connected in parallel to add their output voltage and reduce output inductance, and a number of single turn windings connected in parallel at nodes (32, 34) for the primary winding, each single turn winding linking a different one of the layers of the multilayer core. The load may be comprised of a resistive beampipe (40) for a linear particle accelerator and capacitance of a pulse forming network (42). To hold off discharge of the capacitance until it is fully charged, a saturable core (44) is provided around the resistive beampipe (40) to isolate the beampipe from the capacitance (42) until it is fully charged.
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Besha Richard G.
Chatmon, Jr. Saxfield
Clouse, Jr. Clifton E.
Gaither Roger S.
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