Analog-digital converter and method
US-2024333293-A1 · Oct 3, 2024 · US
Circuit breaker
US2016178673A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2016178673-A1 |
| Application number | US-201514961979-A |
| Country | US |
| Kind code | A1 |
| Filing date | Dec 8, 2015 |
| Priority date | Dec 18, 2014 |
| Publication date | Jun 23, 2016 |
| Grant date | — |
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- Title
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Abstract
Official abstract text for this publication.
A circuit breaker for a low-voltage circuit is disclosed. In an embodiment, the circuit breaker includes a current conductor, assigned a measuring transducer for measuring the electrical current of the current conductor; a first filter connected to the measuring transducer; an analog/digital converter connected to the first filter; a second, high-pass filter connected to the analog/digital converter; and a digital integrator, connected to the high-pass filter and configured to determine the electrical current of the current conductor.
First claim
Opening claim text (preview).
What is claimed is: 1 . A circuit breaker for a low-voltage circuit, comprising: a current conductor, assigned a measuring transducer to measure electrical current of the current conductor; a first filter connected to the measuring transducer; an analog/digital converter, connected to the first filter; a second filter, connected to the analog/digital converter; and a digital integrator, connected to the second filter and configured to determine the electrical current of the current conductor. 2 . The circuit breaker of claim 1 , wherein the digital integrator is a two-stage digital integrator. 3 . The circuit breaker of claim 1 , wherein the first filter is a low-pass or bandpass filter. 4 . The circuit breaker of claim 1 , wherein the second filter is a high-pass filter. 5 . The circuit breaker of claim 1 , wherein the second filter is a digital filter. 6 . The circuit breaker of claim 1 , wherein the first filter is a multistage filter. 7 . The circuit breaker of claim 1 , wherein the second filter is in the form of an infinite impulse response filter. 8 . The circuit breaker of claim 1 , wherein the second filter includes components configured to carry out a fast Fourier transform and an inverse fast Fourier transform. 9 . The circuit breaker of claim 2 , wherein the digital integrator includes a microprocessor, configured to carry out two-stage discrete integration. 10 . The circuit breaker of claim 9 , wherein the digital integrator is configured to carry out the integration using Simpson's formula. 11 . The circuit breaker of claim 9 , wherein the digital integrator is configured to carry out calculations with twice a strip width in a secondary calculation during the two-stage integration. 12 . The circuit breaker of claim 2 , wherein the first filter is a low-pass or bandpass filter. 13 . The circuit breaker of claim 3 , wherein the second filter is a high-pass filter. 14 . The circuit breaker of claim 3 , wherein the second filter is a digital filter. 15 . The circuit breaker of claim 2 , wherein the first filter is a multistage filter. 16 . The circuit breaker of claim 3 , wherein the second filter is in the form of an infinite impulse response filter. 17 . The circuit breaker of claim 3 , wherein the second filter includes components configured to carry out a fast Fourier transform and an inverse fast Fourier transform.
Assignees
Inventors
Classifications
- G01R19/252Primary
using analogue/digital converters of the type with conversion of voltage or current into frequency and measuring of this frequency · CPC title
Operating or release mechanisms · CPC title
using a solid-state trip unit (circuits H02H) · CPC title
Measuring real component · CPC title
- G01R19/2509Primary
Details concerning sampling, digitizing or waveform capturing · CPC title
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Frequently asked questions
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- What does patent US2016178673A1 cover?
- A circuit breaker for a low-voltage circuit is disclosed. In an embodiment, the circuit breaker includes a current conductor, assigned a measuring transducer for measuring the electrical current of the current conductor; a first filter connected to the measuring transducer; an analog/digital converter connected to the first filter; a second, high-pass filter connected to the analog/digital conv…
- Who is the assignee on this patent?
- Siemens Ag
- What technology area does this patent fall under?
- Primary CPC classification G01R19/252. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Thu Jun 23 2016 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).