FR2425302B2 - - Google Patents

Info

Publication number
FR2425302B2
FR2425302B2 FR7814498A FR7814498A FR2425302B2 FR 2425302 B2 FR2425302 B2 FR 2425302B2 FR 7814498 A FR7814498 A FR 7814498A FR 7814498 A FR7814498 A FR 7814498A FR 2425302 B2 FR2425302 B2 FR 2425302B2
Authority
FR
France
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.)
Expired
Application number
FR7814498A
Other versions
FR2425302A2 (fr
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)
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 FR2425302A2 (fr) 1979-12-07
FR2425302B2 true 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)

Families Citing this family (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

Family Cites Families (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
US3560805A (en) * 1968-07-12 1971-02-02 Rfl Ind Inc Apparatus for treating permanent magnets
JPS531945B2 (fr) * 1972-06-17 1978-01-24
FR2356483A1 (fr) * 1976-06-28 1978-01-27 Jacquemet Georges Appareil de percussion electro-magnetique

Also Published As

Publication number Publication date
FR2425302A2 (fr) 1979-12-07

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