FR2233745A1 - 'Alpha' rhythm A.C. generator - gives sinusoidal adjustable voltage from 0 to 4 volts at freq. 5 to 18 hertz - Google Patents

'Alpha' rhythm A.C. generator - gives sinusoidal adjustable voltage from 0 to 4 volts at freq. 5 to 18 hertz

Info

Publication number
FR2233745A1
FR2233745A1 FR7321339A FR7321339A FR2233745A1 FR 2233745 A1 FR2233745 A1 FR 2233745A1 FR 7321339 A FR7321339 A FR 7321339A FR 7321339 A FR7321339 A FR 7321339A FR 2233745 A1 FR2233745 A1 FR 2233745A1
Authority
FR
France
Prior art keywords
generator
oscillator
signal
freq
hertz
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
FR7321339A
Other languages
French (fr)
Other versions
FR2233745B3 (en
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.)
VIREL ANDRE
Original Assignee
VIREL ANDRE
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 VIREL ANDRE filed Critical VIREL ANDRE
Priority to FR7321339A priority Critical patent/FR2233745A1/en
Publication of FR2233745A1 publication Critical patent/FR2233745A1/en
Application granted granted Critical
Publication of FR2233745B3 publication Critical patent/FR2233745B3/fr
Granted legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N1/00—Electrotherapy; Circuits therefor
    • A61N1/18—Applying electric currents by contact electrodes
    • A61N1/32—Applying electric currents by contact electrodes alternating or intermittent currents
    • A61N1/36—Applying electric currents by contact electrodes alternating or intermittent currents for stimulation
    • A61N1/36014—External stimulators, e.g. with patch electrodes
    • A61N1/36021—External stimulators, e.g. with patch electrodes for treatment of pain
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N1/00—Electrotherapy; Circuits therefor
    • A61N1/18—Applying electric currents by contact electrodes
    • A61N1/32—Applying electric currents by contact electrodes alternating or intermittent currents
    • A61N1/36—Applying electric currents by contact electrodes alternating or intermittent currents for stimulation
    • A61N1/36014—External stimulators, e.g. with patch electrodes
    • A61N1/36025—External stimulators, e.g. with patch electrodes for treating a mental or cerebral condition
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
    • H03B5/00—Generation of oscillations using amplifier with regenerative feedback from output to input
    • H03B5/20—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising resistance and either capacitance or inductance, e.g. phase-shift oscillator
    • H03B5/24—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising resistance and either capacitance or inductance, e.g. phase-shift oscillator active element in amplifier being semiconductor device
    • 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
    • H03K3/023—Generators characterised by the type of circuit or by the means used for producing pulses by the use of differential amplifiers or comparators, with internal or external positive feedback
    • H03K3/0231—Astable circuits
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K5/00—Manipulating of pulses not covered by one of the other main groups of this subclass
    • H03K5/01—Shaping pulses
    • H03K5/08—Shaping pulses by limiting; by thresholding; by slicing, i.e. combined limiting and thresholding

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • Veterinary Medicine (AREA)
  • Public Health (AREA)
  • General Health & Medical Sciences (AREA)
  • Radiology & Medical Imaging (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Biomedical Technology (AREA)
  • Biophysics (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Engineering & Computer Science (AREA)
  • Developmental Disabilities (AREA)
  • Social Psychology (AREA)
  • Psychology (AREA)
  • Child & Adolescent Psychology (AREA)
  • Psychiatry (AREA)
  • Neurology (AREA)
  • Hospice & Palliative Care (AREA)
  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Pain & Pain Management (AREA)
  • Inverter Devices (AREA)

Abstract

Alternating current generator comprising an oscillator generating a frequency in the range required, this oscillator being regulated by a potentiometer (P1). The oscillator is formed from two integrated circuits (CI1 and CI2) functioning as operational amplifiers. One of the integrated circuits (CI1) furnishes a triangular signal whilst the other (CI2) furnishes a square wave signal. The oscillator has a limiting and peak lopping circuit common to the square and triangular wave signals. This circuit delivers at its output a near sinusoidal signal. A potentiometer P2 regulates the amplitude of the peak lopped triangular signal, the amplified signal being delivered to the output of the generator to which two electrodes are connected.
FR7321339A 1973-06-12 1973-06-12 'Alpha' rhythm A.C. generator - gives sinusoidal adjustable voltage from 0 to 4 volts at freq. 5 to 18 hertz Granted FR2233745A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7321339A FR2233745A1 (en) 1973-06-12 1973-06-12 'Alpha' rhythm A.C. generator - gives sinusoidal adjustable voltage from 0 to 4 volts at freq. 5 to 18 hertz

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7321339A FR2233745A1 (en) 1973-06-12 1973-06-12 'Alpha' rhythm A.C. generator - gives sinusoidal adjustable voltage from 0 to 4 volts at freq. 5 to 18 hertz

Publications (2)

Publication Number Publication Date
FR2233745A1 true FR2233745A1 (en) 1975-01-10
FR2233745B3 FR2233745B3 (en) 1976-05-28

Family

ID=9120820

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7321339A Granted FR2233745A1 (en) 1973-06-12 1973-06-12 'Alpha' rhythm A.C. generator - gives sinusoidal adjustable voltage from 0 to 4 volts at freq. 5 to 18 hertz

Country Status (1)

Country Link
FR (1) FR2233745A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1989006554A1 (en) * 1988-01-21 1989-07-27 Antonio Ilson Giordani Electrostimulating device
EP0344920A1 (en) * 1988-05-04 1989-12-06 Michael James Williams Brennan Treatment of sleep disorders and alleviating disruption of circadian rhythms
ES2077525A2 (en) * 1993-12-02 1995-11-16 Univ Sevilla Digital wave generator.

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1989006554A1 (en) * 1988-01-21 1989-07-27 Antonio Ilson Giordani Electrostimulating device
EP0344920A1 (en) * 1988-05-04 1989-12-06 Michael James Williams Brennan Treatment of sleep disorders and alleviating disruption of circadian rhythms
ES2077525A2 (en) * 1993-12-02 1995-11-16 Univ Sevilla Digital wave generator.

Also Published As

Publication number Publication date
FR2233745B3 (en) 1976-05-28

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Legal Events

Date Code Title Description
ST Notification of lapse