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1. (WO1997017138) AN ELECTRONIC CIRCUIT SUITED TO GENERATING A DIRECT VOLTAGE UPON WHICH A PULSE VOLTAGE IS SUPERIMPOSED.
Latest bibliographic data on file with the International Bureau

Considered void 02.06.1997


Pub. No.: WO/1997/017138 International Application No.: PCT/EP1996/004645
Publication Date: 15.05.1997 International Filing Date: 25.10.1996
IPC:
B03C 3/66 (2006.01) ,H02M 3/07 (2006.01) ,H02M 3/142 (2006.01) ,H03K 3/57 (2006.01)
B PERFORMING OPERATIONS; TRANSPORTING
03
SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
C
MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
3
Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
34
Constructional details or accessories or operation thereof
66
Applications of electricity supply techniques
H ELECTRICITY
02
GENERATION, CONVERSION, OR DISTRIBUTION OF ELECTRIC POWER
M
APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
3
Conversion of dc power input into dc power output
02
without intermediate conversion into ac
04
by static converters
06
using resistors or capacitors, e.g. potential divider
07
using capacitors charged and discharged alternately by semiconductor devices with control electrode
H ELECTRICITY
02
GENERATION, CONVERSION, OR DISTRIBUTION OF ELECTRIC POWER
M
APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
3
Conversion of dc power input into dc power output
02
without intermediate conversion into ac
04
by static converters
10
using discharge tubes with control electrode or semiconductor devices with control electrode
125
using devices of a thyratron or thyristor type requiring extinguishing means
135
using semiconductor devices only
137
with automatic control of output voltage or current, e.g. switching regulators
142
including plural semiconductor devices as final control devices for a single load
H ELECTRICITY
03
BASIC ELECTRONIC CIRCUITRY
K
PULSE TECHNIQUE
3
Circuits for generating electric pulses; Monostable, bistable or multistable circuits
02
Generators characterised by the type of circuit or by the means used for producing pulses
53
by 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
57
the switching device being a semiconductor device
Applicants:
ENEL S.P.A. [IT/IT]; Via G.B. Martini, 3 I-00198 Roma, IT (AllExceptUS)
LAMI, Enio [IT/IT]; IT (UsOnly)
MARCEDULA, Alfredo [IT/IT]; IT (UsOnly)
MATTACHINI, Francesco [IT/IT]; IT (UsOnly)
TREBBI, Giuliano [IT/IT]; IT (UsOnly)
VITALI, Aldo [IT/IT]; IT (UsOnly)
Inventors:
LAMI, Enio; IT
MARCEDULA, Alfredo; IT
MATTACHINI, Francesco; IT
TREBBI, Giuliano; IT
VITALI, Aldo; IT
Agent:
FERRAIOLO, Ruggero ; Via Napo Torriani, 10 I-20124 Milano, IT
Priority Data:
MI95A00231410.11.1995IT
Title (EN) AN ELECTRONIC CIRCUIT SUITED TO GENERATING A DIRECT VOLTAGE UPON WHICH A PULSE VOLTAGE IS SUPERIMPOSED.
(FR) CIRCUIT ELECTRONIQUE CONÇU POUR PRODUIRE UNE TENSION CONTINUE SUR LAQUELLE ON SUPERPOSE UNE TENSION D'IMPULSIONS
Abstract:
(EN) An oscillating circuit comprises a first group of a static switch protected by DSAS or BOD diodes, under the protection of free-wheeling diodes in parallel; a second group of at least one storage-capacitor at direct current defined by a storage-capacitor, at least one capacitor for the separation of the basic direct current, at least one coil and the precipitator capacitor; said first and second groups producing a high voltage pulse every time a firing pulse is applied to the static switch that allows a current to pass in the oscillating circuit, said current being sensibly formed by a single positive semi-wave and by a single negative semi-wave.
(FR) Un circuit oscillant comprend un premier groupe constitué par un commutateur statique protégé par des diodes DSAS ou BOD (diode à dispositif silicium symétrique de suppression de surtensions, ou diode de surtension de claquage) sous la protection de diodes de roue libre placées en parallèle, un second groupe constitué par au moins un condensateur d'accumulation, à courant continu déterminé par un condensateur d'accumulation, au moins un condensateur destiné à la séparation du courant continu de base, au moins une bobine et le condensateur précipitron, ces deux groupes produisant une impulsion haute tension chaque fois qu'une impulsion d'amorçage est appliquée au commutateur statique, permettant à un courant de passer dans le circuit oscillant, ce courant étant sensiblement formé d'une seule demi-onde positive et d'une seule demi-onde négative.
Designated States: AU, CN, KR, US
European Patent Office (AT, BE, CH, DE, DK, ES, FI, FR, GB, GR, IE, IT, LU, MC, NL, PT, SE)
Publication Language: English (EN)
Filing Language: English (EN)
Also published as:
AU1996072985