A - Human Necessities – 61 – B
Patent
A - Human Necessities
61
B
A61B 5/053 (2006.01) H02M 5/32 (2006.01)
Patent
CA 2475172
An apparatus for isolated transformation of a first voltage into a second voltage includes a motor (15), which is powered by the first voltage and whereof the motor drives a generator (16) utilizing a coupling means, for example, a shaft (17) or a belt drive, whereof the rotation of the shaft generates the second voltage off the generator (16). At least a portion (18) of the coupling means, for example, the shaft (17), is made of an electrically isolating material featuring a dielectric constant of approximately 1 and is of such a dimension that the capacitance of the generator related to Ground is at maximum 10 pF, preferably 5 pF. The apparatus is in particular suited to provide a voltage for supply of electronic measurement devices, which are used for impedance measurements at the human body because the apparatus meets requirements for medical safety, keeps the electrical capacitance of the measurement circuit powered by the generator at a minimum, does not transform disturbances present at the first voltage to the measurement circuitry, and doesn't generate disturbances by itself.
Osypka Medical Gmbh
Smart & Biggar
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