Circuit device for LED lamp, has switching unit to control current flowed through LED branches based on detected operating variable required for controlling current flowed through LED branches

摘要

The device (6) has a circuitry input (7) to connect circuit device with a LED driver (4) to provided an electrical input direct current (DC) having regular current value. Two LED branches having LEDs are coupled with circuitry input. An operating variable required for controlling current flowed through LED branches is detected by a switching unit. The current flowed through LED branches is controlled by the switching unit based on the detected operating variable. Independent claims are included for the following: (1) the LED lamp; and (2) a method for operating the LED lamp.