CIRCUIT FOR SUPPLYING POWER TO AN ELECTRIC LOAD, AND FOR RECEIVING DESIRED SIGNALS SENT FROM THE ELECTRIC LOAD
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United States of America Patent
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Oct 24, 2017
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Oct 24, 2016
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Abstract
Described is a circuit for supplying power to an electric load connected to the circuit via an interface, and for receiving desired signals transmitted from the electric load by an amplitude modulation, performed by the electric load, of a carrier signal transmitted from the circuit via the interface, said carrier signal serving to supply power to the electric load, with a carrier signal generator that comprises a direct voltage source and a DC-AC converter downstream of the direct voltage source, and with a demodulator for extraction of desired signals modulated by the electric load on the carrier signal, which circuit has a high efficiency without the use of choke coils. The demodulator is designed to extract the desired signals using a current corresponding to a carrier signal current flowing through a current path of the circuit during a transmission of the desired signals, said carrier signal current flowing across the interface.
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