E-beam high voltage switching power supply
Abstract
A high power, solid state power supply is described for producing a controllable, constant high voltage output under varying and arcing loads suitable for powering an electron beam gun or other ion source. The present power supply is most useful for outputs in a range of about 100-400 kW or more. The power supply is comprised of a plurality of discrete switching type dc-dc converter modules, each comprising a voltage regulator, an inductor, an inverter for producing a high frequency square wave current of alternating polarity, an improved inverter voltage clamping circuit, a step up transformer, and an output rectifier for producing a dc voltage at the output of each module. The inputs to the converter modules are fed from a common dc rectifier/filter and are linked together in parallel through decoupling networks to suppress high frequency input interactions. The outputs of the converter modules are linked together in series and connected to the input of the transmission line to the load through a decoupling and line matching network. The dc-dc converter modules are phase activated such that for n modules, each module is activated equally 360.degree./n out of phase with respect to a successive module. The phased activation ofmore »
- Inventors:
-
- Danville, CA
- Livermore, CA
- Issue Date:
- Research Org.:
- Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
- OSTI Identifier:
- 870860
- Patent Number(s):
- 5610452
- Application Number:
- 5610452
- Assignee:
- United States of America as represented by United States (Washington, DC)
- Patent Classifications (CPCs):
-
H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01J - ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
H - ELECTRICITY H02 - GENERATION H02H - EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- DOE Contract Number:
- W-7405-ENG-48
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- e-beam; voltage; switching; power; supply; solid; described; producing; controllable; constant; output; varying; arcing; loads; suitable; powering; electron; beam; gun; source; useful; outputs; range; 100-400; kw; comprised; plurality; discrete; type; dc-dc; converter; modules; comprising; regulator; inductor; inverter; frequency; square; wave; current; alternating; polarity; improved; clamping; circuit; step; transformer; rectifier; dc; module; inputs; fed; common; filter; linked; parallel; decoupling; networks; suppress; input; interactions; series; connected; transmission; line; load; matching; network; phase; activated; equally; 360; degree; respect; successive; phased; activation; combined; waveforms; transformers; allows; operate; greatly; reduced; capacitance; values; minimizes; stored; energy; available; discharge; provides; dynamic; response; controlling; duty; cycle; simulated; feedback; signals; loops; circuitry; provided; sensing; incipient; currents; reflected; simultaneously; voltage regulator; voltage switching; feedback signal; converter modules; matching network; clamping circuit; dc-dc converter; feedback loop; voltage output; transmission line; electron beam; power supply; dc voltage; duty cycle; stored energy; greatly reduced; square wave; provides dynamic; regulator duty; sensing incipient; switching type; supply circuitry; wave current; varying loads; arcing load; arcing loads; inverter voltage; output rectifier; alternating polarity; switching power; voltage clamping; discrete switching; dynamic response; beam gun; greatly reduce; feedback loops; frequency square; improved inverter; voltage clamp; voltage switch; decoupling network; /307/363/
Citation Formats
Shimer, Daniel W, and Lange, Arnold C. E-beam high voltage switching power supply. United States: N. p., 1997.
Web.
Shimer, Daniel W, & Lange, Arnold C. E-beam high voltage switching power supply. United States.
Shimer, Daniel W, and Lange, Arnold C. Wed .
"E-beam high voltage switching power supply". United States. https://www.osti.gov/servlets/purl/870860.
@article{osti_870860,
title = {E-beam high voltage switching power supply},
author = {Shimer, Daniel W and Lange, Arnold C},
abstractNote = {A high power, solid state power supply is described for producing a controllable, constant high voltage output under varying and arcing loads suitable for powering an electron beam gun or other ion source. The present power supply is most useful for outputs in a range of about 100-400 kW or more. The power supply is comprised of a plurality of discrete switching type dc-dc converter modules, each comprising a voltage regulator, an inductor, an inverter for producing a high frequency square wave current of alternating polarity, an improved inverter voltage clamping circuit, a step up transformer, and an output rectifier for producing a dc voltage at the output of each module. The inputs to the converter modules are fed from a common dc rectifier/filter and are linked together in parallel through decoupling networks to suppress high frequency input interactions. The outputs of the converter modules are linked together in series and connected to the input of the transmission line to the load through a decoupling and line matching network. The dc-dc converter modules are phase activated such that for n modules, each module is activated equally 360.degree./n out of phase with respect to a successive module. The phased activation of the converter modules, combined with the square current waveforms out of the step up transformers, allows the power supply to operate with greatly reduced output capacitance values which minimizes the stored energy available for discharge into an electron beam gun or the like during arcing. The present power supply also provides dynamic response to varying loads by controlling the voltage regulator duty cycle using simulated voltage feedback signals and voltage feedback loops. Circuitry is also provided for sensing incipient arc currents reflected at the output of the power supply and for simultaneously decoupling the power supply circuitry from the arcing load.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1997},
month = {1}
}