Circuit arrangement for producing a low frequency alternating cu

Details Circuit arrangement for producing a low frequency alternating cu Circuit arrangement for producing a low frequency alternating cu

1981-02-17

1983-10-11

Grimm, Siegfried H.

Oscillators

Beat frequency

Frequency or amplitude adjustment or control

128422, 331 48, 331 56, H03B 2101, A61N 136

Patent

active

044095651

ABSTRACT:
The invention relates to a circuit arrangement for producing a low frequency alternating current, such as is particularly used for electric massaging. Any desired frequency characteristics and beats may be produced by the interconnecting of several generators having different, adjustable fundamental frequencies, and by an adjustability of the coupling components. These frequency characteristics and beats have proven to be particularly effective. Above all, the components of the line frequencies of 50-60 Hz, which are dangerous to the human body, are avoided.

REFERENCES:
patent: 3523255 (1970-08-01), Rhyne, Jr. et al.
patent: 3564447 (1971-02-01), Chase
patent: 4249537 (1981-02-01), Lee et al.
"Elektrotherapie" by Otto Gillert, Published by: Pflaum Verlag Muenchen; pp. 108 and 109.

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