Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
July 13, 2021
Patent Application Number
17032759
Date Filed
September 25, 2020
Patent Citations
...
Patent Citations Received
Patent Primary Examiner
Patent abstract
AC-driven light-emitting diode systems and methods are provided for driving LED devices (e.g., LED lighting) using AC power. For example, an integrated circuit includes a first power line and a second power line configured for connection to AC power, and a plurality of LED stages, wherein each LED stage comprises multiple serially-connected LED devices, switches connected to inputs and outputs of the LED stages. The integrated circuit further includes switch control circuitry configured to control the switches to selectively connect one or more of the LED stages to the first and second power lines to empower the LED stages with the AC power.
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