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Title: Switching power pulse system

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=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 themore » 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.« less

Inventors:
 [1]
  1. (Livermore, CA)
Issue Date:
Research Org.:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
OSTI Identifier:
864658
Patent Number(s):
4398156
Assignee:
Aaland, Kristian (Livermore, CA) LLNL
DOE Contract Number:  
W-7405-ENG-48
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
switching; power; pulse; delivering; pulses; source; 10; load; 20; storage; capacitor; c3; charged; rectifier; d1; d2; maintained; reference; voltage; level; transistor; switch; q1; comparator; 12; thyristor; 22; triggered; discharge; saturable; reactor; 18; fractional; transformer; 16; secondary; primary; ratio; functions; soaker; reaches; saturation; switches; impedance; coupling; c4; charges; dump; charge; comprised; multilayer; core; 26; windings; 28; 30; tightly; wound; connected; parallel; add; output; reduce; inductance; single; nodes; 32; 34; winding; linking; layers; resistive; beampipe; 40; linear; particle; accelerator; capacitance; forming; network; 42; hold; 44; provided; isolate; secondary windings; secondary winding; power pulse; particle accelerator; storage capacitor; output voltage; reference voltage; saturable reactor; pulse forming; voltage level; switching power; forming network; primary winding; transistor switch; particle accelera; voltage comparator; linear particle; /315/327/331/336/

Citation Formats

Aaland, Kristian. Switching power pulse system. United States: N. p., 1983. Web.
Aaland, Kristian. Switching power pulse system. United States.
Aaland, Kristian. Sat . "Switching power pulse system". United States. https://www.osti.gov/servlets/purl/864658.
@article{osti_864658,
title = {Switching power pulse system},
author = {Aaland, Kristian},
abstractNote = {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=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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1983},
month = {1}
}

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