Electrical isolators

Details Electrical isolators Electrical isolators

1976-05-25

1977-10-18

Goldberg, Gerald

Electricity: power supply or regulation systems

Remote sensing

323 44R, 340347SY, 330110, G05F 112, H03F 134

Patent

active

040548295

ABSTRACT:
An electrical isolator has a transformer with an impedance in series with the primary winding and a high gain amplifier amplifying voltages induced in the secondary winding. Feedback is provided from the amplifier output to produce a current generating flux in the transformer core in opposition to flux produced by current in the primary. Thus the flux density is reduced and with a very high gain amplifier may be made close to zero and well away from saturation.

REFERENCES:
patent: RE28851 (1976-06-01), Milkovic
patent: 3440644 (1969-04-01), Burgis et al.
patent: 3815012 (1974-06-01), Milkovic
Analog-to-Digital/Digital-to-Analog Conversion Technigues by D. F. Hoeschele, Jr. Pub. 1968 by Wiley & Sons, pp. 348,350 relied upon.

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