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Ferranti static transducer

Stan Zurek, Ferranti static transducer, Encyclopedia-Magnetica.com, {accessed 2019-02-22}
reviewed by Jeanete Leicht, 2013-01-17

Ferranti static transducer - a type of current transducer which converts input AC current into output DC current.1)

Fig. 1. Ferranti static transducer - front panel ferrranti_static_transducer_magnetica.jpg

by S. Zurek, E. Magnetica, CC-BY-3.0

Fig. 2. Electronic circuit inside, with the current transformer visible on the left

by S. Zurek, E. Magnetica, CC-BY-3.0

The device comprises a current transformer. The primary winding is connected in series with the circuit, whose current is to be detected.

The signal of the secondary winding is rectified, filtered with an electrolytic capacitor, and fed via current source to the output load, which can be a maximum of 1kΩ (for the device shown in the photo). The circuit uses Zener diodes as protection.

See also


1) Based on the information given on the front panel of the device from the attached photograph, and analysis of the inner electrical circuit of the PCB.
ferranti_static_transducer.txt · Last modified: 2015/12/29 10:27 by Stan Zurek

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