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    Multi-channel LED driver with integrated LEDs having a multilayer structure
    5.
    发明授权
    Multi-channel LED driver with integrated LEDs having a multilayer structure 有权

    公开(公告)号：US11864281B2

    公开(公告)日：2024-01-02

    申请号：US17849492

    申请日：2022-06-24

    申请人： ERP POWER, LLC

    发明人： Michael Archer ,  Louis Chen ,  James H. Mohan

    IPC分类号： H05B45/14 ,  H05B45/355 ,  F21K9/238 ,  F21V19/00

    CPC分类号： H05B45/14 ,  F21K9/238 ,  F21V19/003 ,  H05B45/355

    摘要： An integrated multi-layered lighting system includes a first board having a first component area and a first light area, a second board coupled to and offset from the first board, the second board having a first opening overlapping the first light area of the first board in a plan view, and a second component area overlapping the first component area of the first board in a plan view, a plurality of light emitting diodes (LEDs) coupled to the first board and positioned in the first light area corresponding to the first opening of the second board, and a light driver configured to drive the plurality of LEDs and including a plurality of first components coupled to the first board and positioned in the first component area and a plurality of second components coupled to the second board and positioned in the second component area.

    Controlling LED Channel Current via Hybrid DC and PWM Reference Signal
    6.
    发明公开
    Controlling LED Channel Current via Hybrid DC and PWM Reference Signal 审中-公开

    公开(公告)号：US20230292418A1

    公开(公告)日：2023-09-14

    申请号：US18052072

    申请日：2022-11-02

    申请人： ERP POWER, LLC

    发明人： Michael Archer ,  Steven C. Krattiger ,  Louis Chen ,  James H. Mohan

    IPC分类号： H05B45/325 ,  H05B45/14 ,  H05B45/375

    CPC分类号： H05B45/325 ,  H05B45/14 ,  H05B45/375

    摘要： A multi-channel power supply system includes a power supply circuit configured to generate a drive signal for powering a plurality of color channels based on an input power signal, a channel controller configured to generate a first pulse width modulated (PWM) signal for controlling an output light intensity of a first color channel of the plurality of color channels, a filter circuit configured to generate a first pseudo-sawtooth signal based on the first PWM signal, and a first current control circuit coupled to a first color channel of the plurality of color channels and configured to adjust a first channel current of the first color channel based on the drive signal and the first pseudo-sawtooth signal.

    Overpower protection in a power supply system
    8.
    发明授权
    Overpower protection in a power supply system 有权

    公开(公告)号：US11495958B2

    公开(公告)日：2022-11-08

    申请号：US17204823

    申请日：2021-03-17

    申请人： ERP POWER, LLC

    发明人： Michael Archer ,  Louis Chen ,  James H. Mohan

    IPC分类号： H02H3/42 ,  G01R19/165 ,  H05B47/20 ,  H02H1/00 ,  G01R19/10

    摘要： A method of overpower protection in a power supply system for driving a light source includes determining a voltage drop across a voltage-controlled resistor (VCR) coupled in series with the light source, calculating a power dissipation of the VCR based on the voltage drop and an output current of the power supply system, determining whether the power dissipation is greater than a power threshold, and in response to determining that the power dissipation is less than or equal to the power threshold, determining that an accumulated energy of the VCR is greater than zero, and decrementing the accumulated energy based on the power threshold and the power dissipation of the VCR.

    System and method for invalid pulse rejection
    9.
    发明授权
    System and method for invalid pulse rejection 有权

    公开(公告)号：US11330687B2

    公开(公告)日：2022-05-10

    申请号：US16905461

    申请日：2020-06-18

    申请人： ERP POWER, LLC

    发明人： Steven C. Krattiger

    IPC分类号： H05B45/325 ,  H05B45/10

    摘要： A method of controlling a power supply electrically coupled to a dimmer includes receiving a current pulse-width-modulated (PWM) pulse of a plurality of PWM pulses corresponding to a dimmer level, calculating a current duty cycle of the current PWM pulse, comparing the current duty cycle with a window of validity to determine whether the current duty cycle is within the window of validity, and in response to determining that the current duty cycle is not within the window of validity, determining whether a count of out-of-range PWM pulses having duty cycles not within the window of validity is greater than a threshold, and in response to determining that the count of out-of-range PWM pulses is greater than the threshold generating a sample value corresponding to the current duty cycle for transmission to the power supply.

    Digital control of quasi saturated fets for ripple control
    10.
    发明授权
    Digital control of quasi saturated fets for ripple control 有权

    公开(公告)号：US11272597B2

    公开(公告)日：2022-03-08

    申请号：US17307480

    申请日：2021-05-04

    申请人： ERP POWER, LLC

    发明人： Michael Archer ,  Louis Chen ,  James H. Mohan

    IPC分类号： H05B45/38 ,  H05B45/36 ,  H05B45/14

    摘要： A power supply system includes a converter configured to generate a drive signal based on a rectified input signal for powering a light source, a ripple control system including a voltage-controlled resistor (VCR) coupled to a secondary-side of the converter and configured to dynamically adjust a resistance of the VCR to compensate for ripples in the drive signal, and a controller configured to sense an output voltage of the converter, to calculate a voltage drop across the VCR, and to generate a feedback signal to control the drive signal of the converter based on the sensed output voltage and the calculated voltage drop.