H05B 45/392
Wherein the leds are placed as freewheeling diodes at the secondary side
Official title: wherein the LEDs are placed as freewheeling diodes at the secondary side of an isolation transformer
H05B45/392 (Wherein the leds are placed as freewheeling diodes at the secondary side) appears on 40 US grants and 43 published applications in this corpus.
Search patents in H05B- Granted patents
- 40
- Published applications
- 43
- Assignees
- 35
- Inventors
- 77
- Latest grant
- 5 Aug 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 2006 | 0 | 2 |
| 2007 | 0 | 0 |
| 2008 | 1 | 0 |
| 2009 | 0 | 2 |
| 2010 | 1 | 5 |
| 2011 | 1 | 2 |
| 2012 | 2 | 3 |
| 2013 | 2 | 2 |
| 2014 | 4 | 2 |
| 2015 | 3 | 1 |
| 2016 | 2 | 1 |
| 2017 | 1 | 1 |
| 2018 | 1 | 2 |
| 2019 | 3 | 6 |
| 2020 | 7 | 2 |
| 2021 | 0 | 1 |
| 2022 | 4 | 4 |
| 2023 | 4 | 5 |
| 2024 | 3 | 1 |
| 2025 | 1 | 0 |
| 2026 | 0 | 1 |
By publication year. 2026 runs to 8 Oct.
Recent patents
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Most cited
By later US patents
- Driving circuit with continuous dimming function for driving light sources85US 8,076,867 B2O2Micro, Inc. · 2011
- Driving circuit with dimming controller for driving light sources69US 8,482,219 B2O2Micro, Inc. · 2013
- LED tube lamp47US 10,021,742 B2Jiaxing Super Lighting Electric Appliance Co., Ltd · 2018
- Dimmable LED power supply with power factor control17US 8,698,421 B2Infineon Technologies Austria AG · 2014
- Light emitting diode (LED) driving device11US 7,772,782 B2Leadtrend Technology Corp. · 2010