Electronic device including a dual-function DC-to-DC converter
First Claim
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1. An electronic device, comprising:
- a sensor configured to measure a variable;
an interface circuit for communicating with and receiving power from a remote receiving station through a two-wire line, wherein the interface circuit hasa dual-function controllable switching type DC-to-DC converter connected to the two-wire line and responsive to an information signal indicative of the variable measured by the sensor, wherein the DC-to-DC converter is configured tomodulate current in the two-wire line according to the information signal,extract power for the electronic device from the remote receiving station through the two-wire line, andcommunicate the information signal indicative of the variable measured by the sensor to the remote receiving station through the two-wire line.
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Abstract
An electronic device, e. g. a measuring transducer, has an interface circuit for communicating with and receiving power from a two-wire line, said interface circuit has a modulator connected to the two-wire line and responsive to an information signal for modulating the current in the two-wire line according to the information signal, and further has a controllable switching type DC-to-DC converter for extracting power for the electronic device from the two-wire line. To reduce energy losses, the DC-to-DC converter is designed to be controlled by said information signal and to perform the function of the modulation means.
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Citations
3 Claims
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1. An electronic device, comprising:
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a sensor configured to measure a variable; an interface circuit for communicating with and receiving power from a remote receiving station through a two-wire line, wherein the interface circuit has a dual-function controllable switching type DC-to-DC converter connected to the two-wire line and responsive to an information signal indicative of the variable measured by the sensor, wherein the DC-to-DC converter is configured to modulate current in the two-wire line according to the information signal, extract power for the electronic device from the remote receiving station through the two-wire line, and communicate the information signal indicative of the variable measured by the sensor to the remote receiving station through the two-wire line. - View Dependent Claims (2, 3)
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Specification
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Current AssigneeSiemens AG
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Original AssigneeSiemens AG
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InventorsFerreira, Edson Leocdio
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Primary Examiner(s)Hiltunen, Thomas J
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Application NumberUS12/286,673Publication NumberTime in Patent Office1,602 DaysField of SearchNoneUS Class Current455/108CPC Class CodesG08C 19/02 in which the signal transmi...
