Battery Charge Controller
US-2024388111-A1 · Nov 21, 2024 · US
Capacitor device
US9018922B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9018922-B2 |
| Application number | US-201213685762-A |
| Country | US |
| Kind code | B2 |
| Filing date | Nov 27, 2012 |
| Priority date | Dec 15, 2011 |
| Publication date | Apr 28, 2015 |
| Grant date | Apr 28, 2015 |
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- Title
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- Abstract
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Abstract
Official abstract text for this publication.
A capacitor device includes a capacitor unit, a voltage-dividing circuit for outputting a divided voltage obtained by dividing a voltage of the capacitor unit, and a comparator circuit. The comparator circuit causes the charge circuit to operate such that the voltage of the capacitor unit reaches a full-charge voltage. The voltage-dividing circuit includes a semiconductor switching element, and outputs a divided voltage. A control circuit is operable to determine the full-charge voltage to be a high-temperature full-charge voltage by turning off the first semiconductor switching element when a temperature at the capacitor unit exceeds a reference temperature. The control circuit is operable to determine the full-charge voltage to be a low-temperature full-charge voltage that is higher than the high-temperature full-charge voltage by turning on the first semiconductor switching element when the detected temperature is not higher than the reference temperature.
First claim
Opening claim text (preview).
What is claimed is: 1. A capacitor device comprising: a capacitor unit; a charge circuit for charging the capacitor unit, the charge circuit being configured to be connected to a main power supply; a temperature detector for detecting a temperature of the capacitor unit or a temperature around the capacitor unit; a voltage-dividing circuit for outputting a divided voltage obtained by dividing a voltage of the capacitor unit; a reference voltage circuit for outputting a ref…
Assignees
Inventors
Classifications
Electricity · mapped topic
Electricity · mapped topic
Electricity · mapped topic
- H02J7/933Primary
Electricity · mapped topic
Cross-Sectional Technologies · mapped topic
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Frequently asked questions
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- What does patent US9018922B2 cover?
- A capacitor device includes a capacitor unit, a voltage-dividing circuit for outputting a divided voltage obtained by dividing a voltage of the capacitor unit, and a comparator circuit. The comparator circuit causes the charge circuit to operate such that the voltage of the capacitor unit reaches a full-charge voltage. The voltage-dividing circuit includes a semiconductor switching element, and…
- Who is the assignee on this patent?
- Panasonic Ip Man Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification H02J7/933. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Apr 28 2015 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 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).