Patent EP0354060A2 successfully refreshed from Google Patents.
EP0354060A2
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EP
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Delta sigma modulator arrangement
Assignee: The General Electric Company PLC
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Filing: 1989-08-04
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Granted: —
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Expires: 2009-08-04
Abstract
Abstract A delta sigma modulator arrangement in which non-ideal characteristics such as noise or offsets in amplifiers or other circuits of the circuits of the arrangement are compensated by chopper stabilisation.
Inventors
- 👤 Ian Juso Dedic
- 👤 Alexander William Vogt
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-28 21:15
CPC Classifications
H; H03; H03F; H03F3/00; H03F3/38; H03F3/387; H03M; H03M3/00; H03M3/30; H03M3/322; H03M3/324; H03M3/326; H03M3/338; H03M3/34; H03F2200/00; H03F2200/331; H03M3/39; H03M3/412; H03M3/422; H03M3/43; H03M3/436; H03M3/438; H03M3/454
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
45 words
A delta sigma modulator arrangement including at least one component circuit in which noise or offset may arise wherein there are provided switch means periodically to invert signals at the input and output of said component circuit to effect chopper stabilization of said component circuit.
Claim 2
Dependent Claim
45 words
A delta sigma modulator arrangement including at least one component circuit in which noise or offset may arise wherein there are provided switch means periodically to invert signals at the input and output of said component circuit to effect chopper stabilization of said component circuit.
Claim 3
Dependent Claim
100 words
A delta sigma modulator arrangement including one or more component circuits which may introduce noise or offsets into signals passing through said modulator arrangement wherein there are provided means to transpose up in frequency signal components appearing at a first point at least in said modulator arrangement and means correspondingly to transpose down in frequency signal components appearing at a second point in said modulator arrangement such that noise or offsets introduced between said first point and said second point are effectively transposed to a frequency band at which they can be filtered out of the signal components being modulated.
Claim 4
Dependent Claim
100 words
A delta sigma modulator arrangement including one or more component circuits which may introduce noise or offsets into signals passing through said modulator arrangement wherein there are provided means to transpose up in frequency signal components appearing at a first point at least in said modulator arrangement and means correspondingly to transpose down in frequency signal components appearing at a second point in said modulator arrangement such that noise or offsets introduced between said first point and said second point are effectively transposed to a frequency band at which they can be filtered out of the signal components being modulated.
Claim 5
Dependent Claim
45 words
A delta sigma modulator arrangement in which an integrator circuit comprises an amplifier having differential inputs, differential outputs and respective capacitor means each arranged to be connected between an output and an input, wherein switch means are provided effectively periodically to interchange said capacitor means.
Claim 6
Dependent Claim
45 words
A delta sigma modulator arrangement in which an integrator circuit comprises an amplifier having differential inputs, differential outputs and respective capacitor means each arranged to be connected between an output and an input, wherein switch means are provided effectively periodically to interchange said capacitor means.
References Cited (Backward Citations)
No citation records indexed.
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