Isolator
AssigneesKabushiki Kaisha Toshiba, Toshiba Electronic Devices & Storage Corporation
InventorsMasaki Nishikawa, Shoji Ootaka
Life of this patent
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Abstract
An isolator of embodiments includes a ΔΣ analog-digital converter configured to convert an analog signal into a digital signal of one bit and transmit the digital signal of one bit as normal data, a time direction multiplexing circuit configured to perform time direction multiplexing of alternately performing conversion of the normal data into a digital differential signal and transmission of the digital differential signal, and transmission of a special signal different from the normal data, and an insulated transmission circuit configured to transmit the digital differential signal and the special signal transmitted from the time direction multiplexing circuit via an insulating layer.
Claims9
An isolator comprising:
- a ΔΣ analog-digital converter configured to convert an analog input signal into a digital signal of one bit and transmit the digital signal of one bit as normal data;
- a time direction multiplexing circuit configured to perform time direction multiplexing of alternately performing conversion of the normal data from the ΔΣ analog-digital converter into a digital differential signal and transmission of the digital differential signal, and transmission of a special signal different from an output of the ΔΣ analog-digital converter;
- and
- an insulated transmission circuit configured to transmit the digital differential signal and the special signal transmitted from the time direction multiplexing circuit via an insulating layer.
Dependencies are inferred from the claim text.