Nxp B.v.

Patrick Emanuel Gerardus Smeets

Rameswor Shrestha

Data is communicated. In accordance with one or more example embodiments, a communications circuit communicates a digital data signal using a carrier signal having a frequency that is different than the frequency of the data signal. The communications circuit includes first and second sets of capacitors, a first circuit and a second circuit. The first circuit generates mixed data signals respectively mixed with the carrier signal and an inverse of the carrier signal, generates mixed inverted data signals respectively mixed with the carrier signal and an inverse of the carrier signal, provides the mixed data signals to the first set of capacitors, and provides the mixed inverted data signals to the second set of capacitors. The second circuit recovers the data signal from the mixed signals.

Capacitive communication circuit and method therefor

A charge pump () for generating a first output voltage (Vo) between a first output terminal (E) and a reference terminal (D), and a second output voltage (Vo) between a second output terminal (F) and the reference terminal (D). The charge pump () further comprises a first input terminal (C) for inputting a DC voltage (V), a first storage capacitor (Cr) coupled between the first output terminal (E) and the reference terminal (D) and a second storage capacitor (Cr) coupled between the second output terminal (F) and the reference terminal (D). The charge pump () further comprises a first terminal (A) and a second terminal (B) for coupling a pump capacitor (Cp) to a first triplet of switches (S, S, S) and to a second triplet of switches (S, S, S). The first triplet of switches (S, S, S) selectively couples the first terminal (A) to either the first input terminal (C) or to the reference terminal (D) or to the second output terminal (F). The second triplet of switches (S, S, S) selectively couples the second terminal (B) to either the first input terminal (C) or to the reference terminal (D) or to the first output terminal (E).

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Weert, Netherlands

Patrick Emanuel Gerardus Smeets