Electronic device for managing multiple batteries connected in series and method for operating same
US-2021167612-A1 · Jun 3, 2021 · US
Battery-less sensor circuit
US12032006B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-12032006-B2 |
| Application number | US-202217973340-A |
| Country | US |
| Kind code | B2 |
| Filing date | Oct 25, 2022 |
| Priority date | Oct 26, 2021 |
| Publication date | Jul 9, 2024 |
| Grant date | Jul 9, 2024 |
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- Title
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- Abstract
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- First independent claim
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Abstract
Official abstract text for this publication.
Provided is a battery-less sensor circuit including a power generation element, a first switching element, a voltage control circuit, a first storage capacitor, a sensor circuit, and a load. The power generation element is connected to the first storage capacitor via the first switching element. A power supply terminal of the sensor circuit is connected to an input terminal of the first switching element. The voltage control circuit is configured to control a current passing through the first switching element through reception of a voltage of the input terminal of the first switching element. The load is connected to the first storage capacitor and the sensor circuit.
First claim
Opening claim text (preview).
What is claimed is: 1. A battery-less sensor circuit, comprising: a power generation element; a first switching element; a voltage control circuit; a first storage capacitor; a sensor circuit; and a load, wherein the power generation element is connected to the first storage capacitor via the first switching element, wherein a power supply terminal of the sensor circuit is connected to an input terminal of the first switching element, wherein the voltage control circuit is configured to control a current passing through the first switching element through reception of a voltage of the input terminal of the first switching element, and wherein the load is connected to the first storage capacitor and the sensor circuit. 2. The battery-less sensor circuit according to claim 1 , further comprising a second storage capacitor and a voltage detection circuit, wherein the second storage capacitor is connected to the sensor circuit, and wherein the voltage detection circuit is configured to control the load through reception of a voltage stored in the second storage capacitor. 3. The battery-less sensor circuit according to claim 2 , wherein a capacitance value of the second storage capacitor is set to such a capacitance value that, as compared to a time period required for the first storage capacitor to be charged to a first predetermined voltage through output of the power generation element, a time period required for the second storage capacitor to be charged to a second predetermined voltage through output of the sensor circuit becomes longer. 4. The battery-less sensor circuit according to claim 2 , wherein the voltage detection circuit is to be driven by input electric power of the first switching element. 5. The battery-less sensor circuit according to claim 2 , further comprising: a delay circuit configured to supply an output signal of the voltage detection circuit with a delay of a predetermined time period; and a second switching element to be controlled by a signal supplied from the delay circuit, wherein the second switching element is used to discharge the second storage capacitor. 6. The battery-less sensor circuit according to claim 1 , further comprising a first booster circuit arranged between the power generation element and the first switching element. 7. The battery-less sensor circuit according to claim 1 , wherein the load includes a second booster circuit connected to the first storage capacitor.
Assignees
Inventors
Classifications
with circuits adapted for supplying loads from the battery · CPC title
Measuring voltage only · CPC title
using capacitors as storage or buffering devices · CPC title
- G01R19/1659Primary
to indicate that the value is within or outside a predetermined range of values (window) (G01R19/16514, G01R19/16519, G01R19/16528 and G01R19/16533 take precedence) · CPC title
- G01D21/00Primary
Measuring or testing not otherwise provided for · CPC title
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Frequently asked questions
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- What does patent US12032006B2 cover?
- Provided is a battery-less sensor circuit including a power generation element, a first switching element, a voltage control circuit, a first storage capacitor, a sensor circuit, and a load. The power generation element is connected to the first storage capacitor via the first switching element. A power supply terminal of the sensor circuit is connected to an input terminal of the first switchi…
- Who is the assignee on this patent?
- Ablic Inc
- What technology area does this patent fall under?
- Primary CPC classification G01R19/1659. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Tue Jul 09 2024 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 4 related publications on this page (citations in our corpus or others sharing the same primary CPC).