Abstract: An apparatus includes a plurality of MOSFET device groups connected in parallel, wherein a first common node of the plurality of MOSFET device groups is coupled to a cathode of a light emitting diode channel of a plurality of light emitting diode channels, and a second common node of the plurality of MOSFET device groups is connected to ground, and a control circuit configured to generate gate drive signals for the plurality of MOSFET device groups, wherein the gate drive signals are configured to adjust a current flowing through the light emitting diode channel based on a predetermined color and a predetermined brightness level of the light emitting diode channel, and under different duty cycles, the control circuit is configured to control the current flowing through the light emitting diode channel to be proportional to a corresponding duty cycle.

Abstract: A system includes a plurality of lighting modules, and a plurality of MOSFET devices connected in parallel and coupled between one of the plurality of lighting modules and ground, wherein the plurality of MOSFET devices comprises a first MOSFET device group configured to provide a bleed current flowing through the one of the plurality of lighting modules, a second MOSFET device group configured to provide a delay compensation current flowing through the one of the plurality of lighting modules, a third MOSFET device group configured to provide a PWM current flowing through the one of the plurality of lighting modules, and a fourth MOSFET device group configured to adjust a current flowing through the one of the plurality of lighting modules.

Abstract: An apparatus includes a bandgap voltage reference configured to generate a current reference for controlling a plurality of light emitting diode channels, a plurality of MOSFET devices connected in parallel and coupled between a cathode of a light emitting diode channel and ground, wherein the plurality of MOSFET devices is configured to control a current flowing through the light emitting diode channel, and a control circuit configured to generate gate drive signals for the plurality of MOSFET devices, wherein the gate drive signals are configured to adjust the current flowing through the light emitting diode channel based on a predetermined color and a predetermined brightness level of the light emitting diode channel.

Abstract: An apparatus includes a bandgap voltage reference configured to generate a current reference for controlling a plurality of light emitting diode channels, a plurality of MOSFET devices connected in parallel and coupled between a cathode of a light emitting diode channel and ground, wherein the plurality of MOSFET devices is configured to control a current flowing through the light emitting diode channel, and a control circuit configured to generate gate drive signals for the plurality of MOSFET devices, wherein the gate drive signals are configured to adjust the current flowing through the light emitting diode channel based on a predetermined color and a predetermined brightness level of the light emitting diode channel.

Abstract: An apparatus includes a plurality of MOSFET device groups connected in parallel, wherein a first common node of the plurality of MOSFET device groups is coupled to a cathode of a light emitting diode channel of a plurality of light emitting diode channels, and a second common node of the plurality of MOSFET device groups is connected to ground, and a control circuit configured to generate gate drive signals for the plurality of MOSFET device groups, wherein the gate drive signals are configured to adjust a current flowing through the light emitting diode channel based on a predetermined color and a predetermined brightness level of the light emitting diode channel, and under different duty cycles, the control circuit is configured to control the current flowing through the light emitting diode channel to be proportional to a corresponding duty cycle.