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US-11800617-B2 · Oct 24, 2023 · US
Synchronous starting circuit and constant current depth dimming power supply
US12520397B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-12520397-B2 |
| Application number | US-202318464560-A |
| Country | US |
| Kind code | B2 |
| Filing date | Sep 11, 2023 |
| Priority date | Sep 9, 2022 |
| Publication date | Jan 6, 2026 |
| Grant date | Jan 6, 2026 |
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Abstract
Official abstract text for this publication.
A synchronous start-up circuit with a constant current deep dimmable power supply; when the output voltage of the current source does not reach the start voltage of an LED luminaire, the circuit is disconnected; when the output voltage reaches the start voltage of the LED luminaire, an enabling switch circuit turns on and outputs a power-off signal, which is used for controlling the current source to wait for the output voltage of other constant current sources to reach the start voltage of the corresponding LED luminaire. When the output voltage of the constant current source reaches the starting voltage of the corresponding LED luminaire, each starting switch circuit receives a synchronized starting signal, each starting switch circuit is turned on, and each current source discharges to supply power for the LED luminaire.
First claim
Opening claim text (preview).
The invention claimed is: 1. A synchronous start-up circuit, characterized in that a front stage of the synchronous start-up circuit ( 1 ) is connected to a constant current source ( 2 ) for an LED luminaire, and a rear stage of the synchronous start-up circuit ( 1 ) is connected to the LED luminaire, and the synchronous start-up circuit ( 1 ) comprises an enabling switch circuit ( 11 ) and a starting switch circuit ( 12 ), wherein: a first terminal of the constant current source…
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Electricity · mapped topic
- H05B45/345Primary
Electricity · mapped topic
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- What does patent US12520397B2 cover?
- A synchronous start-up circuit with a constant current deep dimmable power supply; when the output voltage of the current source does not reach the start voltage of an LED luminaire, the circuit is disconnected; when the output voltage reaches the start voltage of the LED luminaire, an enabling switch circuit turns on and outputs a power-off signal, which is used for controlling the current sou…
- Who is the assignee on this patent?
- Self Electronics Co Ltd, Lin Wanjiong, Self Electronics Usa Corp
- What technology area does this patent fall under?
- Primary CPC classification H05B45/345. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Jan 06 2026 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 1 related publication on this page (citations in our corpus or others sharing the same primary CPC).