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1. WO2020068837 - MULTI-CHANNEL PULSE CURRENT GENERATOR WITH CHARGING

Publication Number WO/2020/068837
Publication Date 02.04.2020
International Application No. PCT/US2019/052710
International Filing Date 24.09.2019
IPC
H03K 3/57 2006.01
HELECTRICITY
03BASIC ELECTRONIC CIRCUITRY
KPULSE TECHNIQUE
3Circuits for generating electric pulses; Monostable, bistable or multistable circuits
02Generators characterised by the type of circuit or by the means used for producing pulses
53by the use of an energy-accumulating element discharged through the load by a switching device controlled by an external signal and not incorporating positive feedback
57the switching device being a semiconductor device
H03K 3/02 2006.01
HELECTRICITY
03BASIC ELECTRONIC CIRCUITRY
KPULSE TECHNIQUE
3Circuits for generating electric pulses; Monostable, bistable or multistable circuits
02Generators characterised by the type of circuit or by the means used for producing pulses
H03K 3/53 2006.01
HELECTRICITY
03BASIC ELECTRONIC CIRCUITRY
KPULSE TECHNIQUE
3Circuits for generating electric pulses; Monostable, bistable or multistable circuits
02Generators characterised by the type of circuit or by the means used for producing pulses
53by the use of an energy-accumulating element discharged through the load by a switching device controlled by an external signal and not incorporating positive feedback
CPC
H03K 3/02
HELECTRICITY
03BASIC ELECTRONIC CIRCUITRY
KPULSE TECHNIQUE
3Circuits for generating electric pulses; Monostable, bistable or multistable circuits
02Generators characterised by the type of circuit or by the means used for producing pulses
H03K 3/53
HELECTRICITY
03BASIC ELECTRONIC CIRCUITRY
KPULSE TECHNIQUE
3Circuits for generating electric pulses; Monostable, bistable or multistable circuits
02Generators characterised by the type of circuit or by the means used for producing pulses
53by the use of an energy-accumulating element discharged through the load by a switching device controlled by an external signal and not incorporating positive feedback
H03K 3/57
HELECTRICITY
03BASIC ELECTRONIC CIRCUITRY
KPULSE TECHNIQUE
3Circuits for generating electric pulses; Monostable, bistable or multistable circuits
02Generators characterised by the type of circuit or by the means used for producing pulses
53by the use of an energy-accumulating element discharged through the load by a switching device controlled by an external signal and not incorporating positive feedback
57the switching device being a semiconductor device
Applicants
  • EFFICIENT POWER CONVERSION CORPORATION [US]/[US]
Inventors
  • GLASER, John S.
  • COLINO, Stephen L.
Agents
  • SOFFEN, Stephen A.
Priority Data
62/736,83026.09.2018US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) MULTI-CHANNEL PULSE CURRENT GENERATOR WITH CHARGING
(FR) GÉNÉRATEUR DE COURANT PULSÉ À CANAUX MULTIPLES AVEC CHARGE
Abstract
(EN)
A multi-channel current pulse generator for driving a plurality of loads with unique positive terminals and a shared negative terminal. The pulse generator comprises a pulse control transistor and, for each load, a load capacitor and a charging control transistor. The pulse control transistor allows or blocks current pulses through the loads and has a drain terminal connected to the shared negative terminal, a source terminal connected to ground, and a gate terminal for receiving a load driver control signal. The load capacitors are discharged by current pulses through the corresponding loads. The charging control transistors allow or block charging currents for the corresponding load capacitors. The pulse control transistor is preferably an enhancement mode GaN FET and is chosen to withstand current pulses through a maximum number of loads to be driven simultaneously.
(FR)
La présente invention concerne un générateur d'impulsions de courant multicanal pour commander une pluralité de charges avec des terminaux positifs uniques et un terminal négatif partagé. Le générateur d'impulsions comprend un transistor de commande d'impulsions et, pour chaque charge, un condensateur de charge et un transistor de commande de charge. Le transistor de commande d'impulsion permet ou bloque des impulsions de courant à travers les charges et a une borne de drain connectée à la borne négative partagée, une borne de source connectée à la masse, et une borne de grille pour recevoir un signal de commande de dispositif d'alimentation de charge. Les condensateurs de charge sont déchargés par des impulsions de courant à travers les charges correspondantes. Les transistors de commande de charge permettent ou bloquent des courants de charge pour les condensateurs de charge correspondants. Le transistor de commande d'impulsion est de préférence un FET GaN à mode d'amélioration et est choisi pour résister à des impulsions de courant par l'intermédiaire d'un nombre maximal de charges à alimenter simultanément.
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