| has gloss | eng: A Fontana bridge is a type of bridge circuit that implements a wide frequency band voltage-to-current converter. The converter is characterized by a combination of positive and negative feedback loops, implicit in this bridge configuration. This feature allows compensation for parasitic impedance Z_P} connected in parallel with the useful load Z_S}, which in turn keeps an excitation current I_S} flowing through the useful load Z_S} independent of the instantaneous value of Z_S}. This feature is of great advantage for making electromechanical transducers. |