FR2425302A2 - Appareil de percussion electromagnetique - Google Patents

Appareil de percussion electromagnetique

Info

Publication number
FR2425302A2
FR2425302A2 FR7814498A FR7814498A FR2425302A2 FR 2425302 A2 FR2425302 A2 FR 2425302A2 FR 7814498 A FR7814498 A FR 7814498A FR 7814498 A FR7814498 A FR 7814498A FR 2425302 A2 FR2425302 A2 FR 2425302A2
Authority
FR
France
Prior art keywords
fed
charging
transformer
thyristors
delay stage
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
FR7814498A
Other languages
English (en)
Other versions
FR2425302B2 (fr
Inventor
Georges Jacquemet
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
MARTELEC
Original Assignee
MARTELEC
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by MARTELEC filed Critical MARTELEC
Priority to FR7814498A priority Critical patent/FR2425302A2/fr
Publication of FR2425302A2 publication Critical patent/FR2425302A2/fr
Application granted granted Critical
Publication of FR2425302B2 publication Critical patent/FR2425302B2/fr
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K3/00—Circuits for generating electric pulses; Monostable, bistable or multistable circuits
    • H03K3/02—Generators characterised by the type of circuit or by the means used for producing pulses
    • H03K3/53—Generators characterised by the type of circuit or by the means used for producing pulses 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
    • H03K3/57—Generators characterised by the type of circuit or by the means used for producing pulses 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 the switching device being a semiconductor device
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D11/00—Portable percussive tools with electromotor or other motor drive
    • B25D11/06—Means for driving the impulse member
    • B25D11/064—Means for driving the impulse member using an electromagnetic drive
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00—Magnets
    • H01F7/06—Electromagnets; Actuators including electromagnets
    • H01F7/064—Circuit arrangements for actuating electromagnets
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F29/00—Variable transformers or inductances not covered by group H01F21/00
    • H01F29/14—Variable transformers or inductances not covered by group H01F21/00 with variable magnetic bias
    • H01F2029/143—Variable transformers or inductances not covered by group H01F21/00 with variable magnetic bias with control winding for generating magnetic bias

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Generation Of Surge Voltage And Current (AREA)

Abstract

L'INVENTION CONCERNE UN APPAREIL DE PERCUSSION ELECTROMAGNETIQUE AVEC UN ELECTRO-AIMANT DONT LE TUYAU FAIT PARTIE D'UN ENSEMBLE MOBILE COMPRENANT UN OUTIL DE PERCUSSION, LE BOBINAGE DE CET ELECTRO-AIMANT ETANT ALIMENTE PAR UN SYSTEME A CONDENSATEUR ET THYRISTORS ACCUMULANT DE L'ENERGIE PENDANT DES TEMPS RELATIVEMENT LONGS ET CAPABLE DE LA RESTITUER BRUTALEMENT. LA PRESENTE ADDITION FOURNIT UNE VARIANTE SUIVANT LAQUELLE, A L'INVERSE DE CE QUI EST DECRIT DANS LE BREVET PRINCIPAL, UNE IMPULSION DE COMMANDE UNIQUE PROVOQUE UNE SEQUENCE COMPRENANT D'ABORD LA CHARGE, PUIS LA DECHARGE DES CONDENSATEURS, CE MODE DE FONCTIONNEMENT PRESENTANT L'AVANTAGE, PENDANT LES TEMPS DE REPOS, DE NE LAISSER QU'UNE TENSION RESIDUELLE FAIBLE AUX BORNES DES CONDENSATEURS. APPLICATION A LA REALISATION DE MARTEAUX ELECTROMAGNETIQUES.
FR7814498A 1978-05-08 1978-05-08 Appareil de percussion electromagnetique Granted FR2425302A2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7814498A FR2425302A2 (fr) 1978-05-08 1978-05-08 Appareil de percussion electromagnetique

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7814498A FR2425302A2 (fr) 1978-05-08 1978-05-08 Appareil de percussion electromagnetique

Publications (2)

Publication Number Publication Date
FR2425302A2 true FR2425302A2 (fr) 1979-12-07
FR2425302B2 FR2425302B2 (fr) 1982-11-05

Family

ID=9208292

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7814498A Granted FR2425302A2 (fr) 1978-05-08 1978-05-08 Appareil de percussion electromagnetique

Country Status (1)

Country Link
FR (1) FR2425302A2 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2531363A1 (fr) * 1982-08-03 1984-02-10 Martelec Procede et dispositif pour la commande auto-synchronisee d'un marteau electro-magnetique
FR2581489A1 (fr) * 1985-05-03 1986-11-07 Sorelem Circuit electrique d'alimentation d'un systeme d'electro-aimant par decharge de condensateurs

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1304262A (fr) * 1960-10-21 1962-09-21 Westinghouse Brake & Signal Circuit pour générateur de pulsations, convertisseur en série ou régulateur à courant continu
US3374443A (en) * 1965-09-27 1968-03-19 Gen Dynamics Corp Pulse generator for modulating a magnetron
US3659178A (en) * 1968-07-12 1972-04-25 Rfl Ind Inc Capacitor charging circuit
DE2330958A1 (de) * 1972-06-17 1974-01-03 Makita Electric Works Ltd Elektrisch betaetigbares, von kondensatoren angetriebenes werkzeug
FR2356483A1 (fr) * 1976-06-28 1978-01-27 Jacquemet Georges Appareil de percussion electro-magnetique

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1304262A (fr) * 1960-10-21 1962-09-21 Westinghouse Brake & Signal Circuit pour générateur de pulsations, convertisseur en série ou régulateur à courant continu
US3374443A (en) * 1965-09-27 1968-03-19 Gen Dynamics Corp Pulse generator for modulating a magnetron
US3659178A (en) * 1968-07-12 1972-04-25 Rfl Ind Inc Capacitor charging circuit
DE2330958A1 (de) * 1972-06-17 1974-01-03 Makita Electric Works Ltd Elektrisch betaetigbares, von kondensatoren angetriebenes werkzeug
FR2356483A1 (fr) * 1976-06-28 1978-01-27 Jacquemet Georges Appareil de percussion electro-magnetique

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2531363A1 (fr) * 1982-08-03 1984-02-10 Martelec Procede et dispositif pour la commande auto-synchronisee d'un marteau electro-magnetique
EP0101389A1 (fr) * 1982-08-03 1984-02-22 Martelec Procédé et dispositif pour la commande auto-synchronisée d'un marteau électro-magnétique
US4553074A (en) * 1982-08-03 1985-11-12 Martelec Societe Civile Particuliere Method of and apparatus for the autosynchronization of an electromagnetic hammer
FR2581489A1 (fr) * 1985-05-03 1986-11-07 Sorelem Circuit electrique d'alimentation d'un systeme d'electro-aimant par decharge de condensateurs

Also Published As

Publication number Publication date
FR2425302B2 (fr) 1982-11-05

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