公开(公告)号：US20200351994A1

公开(公告)日：2020-11-05

申请号：US16398343

申请日：2019-04-30

申请人： Yuhao Liu ,  Nilesh Patel ,  Ming Li

发明人： Yuhao Liu ,  Nilesh Patel ,  Ming Li

IPC分类号： H05B33/08

摘要： A driver circuit that includes an input side including a power input circuit and an output side including a light emitting diode (LED) output current circuit. The output side of the driver circuit includes an output smoothing capacitor for controlling flicker percentage. A light emitting diode (LED) power supply circuit is present between the input side and the output side for controlling current from the AC power input circuit to the light emitting diode (LED) output current circuit. The LED power supply circuit includes at least two linear current regulators that are connected in parallel. The circuit also includes a controller circuit including a controller for signaling the light emitting diode (LED) power supply to control current to the light emitting diode (LED) output current circuit to provide a lighting characteristic.

公开(公告)号：US10674585B1

公开(公告)日：2020-06-02

申请号：US16398371

申请日：2019-04-30

申请人： Yuhao Liu ,  Nilesh Patel ,  Ming Li

发明人： Yuhao Liu ,  Nilesh Patel ,  Ming Li

IPC分类号： H05B45/37

摘要： A driver circuit for lighting applications that includes a power input circuit for receiving power; a light emitting diode (LED) output current circuit for interfacing with a light source; and a light emitting diode (LED) power supply circuit for controlling current to the light emitting diode (LED) output current circuit. A controller circuit is present in the circuit for signaling the light emitting power supply (LED) to control current to the light emitting diode (LED) output current circuit. The controller is reset by removing power to the controller. A smoothing capacitor is present for stabilizing at least an output voltage. The circuit further includes a current rectifying circuit that prohibits back current traveling from the smoothing capacitor to the controller circuit when the AC power is off.

公开(公告)号：US20200351998A1

公开(公告)日：2020-11-05

申请号：US16862758

申请日：2020-04-30

申请人： Yuhao Liu ,  Nilesh Patel ,  Ming Li

发明人： Yuhao Liu ,  Nilesh Patel ,  Ming Li

IPC分类号： H05B45/37

摘要： A driver circuit for lighting applications that includes a power input circuit for receiving power; a light emitting diode (LED) output current circuit for interfacing with a light source; and a light emitting diode (LED) power supply circuit for controlling current to the light emitting diode (LED) output current circuit. A controller circuit is present in the circuit for signaling the light emitting power supply (LED) to control current to the light emitting diode (LED) output current circuit. The controller is reset by removing power to the controller. A smoothing capacitor is present for stabilizing at least an output voltage. The circuit further includes a current rectifying circuit that prohibits back current traveling from the smoothing capacitor to the controller circuit when the AC power is off.

公开(公告)号：US10939526B2

公开(公告)日：2021-03-02

申请号：US16862758

申请日：2020-04-30

申请人： Yuhao Liu ,  Nilesh Patel ,  Ming Li

发明人： Yuhao Liu ,  Nilesh Patel ,  Ming Li

IPC分类号： H05B45/37

摘要： A driver circuit for lighting applications that includes a power input circuit for receiving power; a light emitting diode (LED) output current circuit for interfacing with a light source; and a light emitting diode (LED) power supply circuit for controlling current to the light emitting diode (LED) output current circuit. A controller circuit is present in the circuit for signaling the light emitting power supply (LED) to control current to the light emitting diode (LED) output current circuit. The controller is reset by removing power to the controller. A smoothing capacitor is present for stabilizing at least an output voltage. The circuit further includes a current rectifying circuit that prohibits back current traveling from the smoothing capacitor to the controller circuit when the AC power is off.