Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
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Filing date
Publication date
Application filed by Philips Gloeilampenfabrieken NVfiledCriticalPhilips Gloeilampenfabrieken NV
Publication of ES203020A1publicationCriticalpatent/ES203020A1/en
An amplifier circuit comprising a main amplifier and a backup amplifier each of which has an input circuit an output circuit and a negative feedback back-circuit with the two input circuits connected to the same signal voltage source and feeding the two output circuit and a negative feedback circuit, the two input circuits being connected to the same signal voltage source and the two output circuits feeding the same load impedance characterized by an additional interconnected impedance between the load impedance and the terminal of the additional impedance interconnected between the load impedance and the terminal of the output impedance of the main amplifier from which this negative feedback voltage is derived whose additional impedance is of the same order of magnitude as the load impedance being the corresponding impedance in the circuit of output the small reserve amplifier in comparison with said additional impedance being the voltage thus produced by the main emplificador through the load impedance when the reserve amplifier fails approximately equal to the voltage produced by the reserve amplifier through the impedance load when the main amplifier fails. (Machine-translation by Google Translate, not legally binding)
ES0203020A1951-04-191952-04-16An amplifier circuit (Machine-translation by Google Translate, not legally binding)
ExpiredES203020A1
(en)
Improvements in and related to electrical networks whose impedance depends on the sensitive voltage applied to them (Machine-translation by Google Translate, not legally binding)