公开(公告)号：US20220132637A1

公开(公告)日：2022-04-28

申请号：US17079774

申请日：2020-10-26

申请人： Jonathan Williams ,  Jose Garcia ,  Guruprakash Iyer

发明人： Jonathan Williams ,  Jose Garcia ,  Guruprakash Iyer

IPC分类号： H05B45/345 ,  H05B45/48 ,  H05B47/19 ,  H05B45/10

摘要： Apparatuses of various forms and each having at least one LED string controlled by a current controller biased by voltage tap nodes in the LED string, and circuitry for implementing the same. In some implementations, circuitry made in accordance with the present disclosure includes a current controller and current-control circuitry. The current controller is biased by a voltage drop across one or more LEDs in an LED string and controls the current-control circuitry in a manner that controls the electrical current in the LED string. In some implementations, one or more additional LED strings and/or one or more other devices may be controlled directly or indirectly by operation of the current controller.