Capacitively-coupled stacked class-D oscillators for galvanic isolation

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United States of America Patent

PATENT NO 11901863
APP PUB NO 20230353091A1
SERIAL NO

18177533

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Abstract

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An oscillator circuit includes a total of N (N≥2) class-D oscillator circuits stacked together between a supply voltage node and a reference voltage node. The output ports of adjacent class-D oscillator circuits in the disclosed oscillator circuit are coupled together by capacitors to ensure frequency and phase synchronization for the frequency signals generated by the class-D oscillator circuits. Compared with a reference oscillator circuit formed of a single class-D oscillator circuit, the oscillation amplitude of each of the class-D oscillator circuits in the disclosed oscillator circuit is 1/N of that of the reference oscillator circuit, and the current consumption of the disclosed oscillator circuit is 1/N of that of the reference oscillator circuit.

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Patent Owner(s)

Patent OwnerAddress
STMICROELECTRONICS S R LVIA C OLIVETTI 2 AGRATE BRIANZA 20041

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Coffa, Salvatore Milan, IT 38 344
Ragonese, Egidio Aci Catena, IT 22 128
Spataro, Simone Calatabiano, IT 1 0

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