SYSTEM AND METHOD FOR DYNAMIC CONTROL OF 2-STAGE LIGHT DRIVER

    公开(公告)号:US20240276612A1

    公开(公告)日:2024-08-15

    申请号:US18438291

    申请日:2024-02-09

    申请人: ERP POWER, LLC

    IPC分类号: H05B45/3725 H05B45/14

    CPC分类号: H05B45/3725 H05B45/14

    摘要: A light driver includes a converter configured to generate a drive signal for driving an output load based on a rectified input signal; a regulator coupled between the converter and the output load, and configured to generate a regulated signal based on the drive signal; a secondary controller configured to detect a voltage of the regulator, to generate a first feedback signal to dynamically control a DC-level of the drive signal based on the voltage of the regulator, and to generate a second feedback signal for controlling a DC-level of the regulated signal.

    NEGATIVE INJECTION FOR POWER FACTOR CORRECTION CIRCUIT PERFORMANCE ENHANCEMENTS

    公开(公告)号:US20220086984A1

    公开(公告)日:2022-03-17

    申请号:US17393901

    申请日:2021-08-04

    申请人: ERP POWER, LLC

    摘要: A negative injection circuit is coupled to a power factor correction (PFC) controller of a power supply system and includes a downshifter configured to downshift a ground signal to generate a negative voltage signal, a variable impedance coupled between the downshifter and the PFC controller, and configured to inject a negative injection voltage into a voltage sampling input of the PFC controller, the variable impedance including a first current limiting resistor and a second current limiting resistor coupled in series with one another and between the downshifter and the voltage sampling input of the PFC controller, and a bypass switch configured to selectively short across the second current limiting resistor in response a range selection signal.

    LED DRIVER WITH INTEGRATED LED LIGHTING FOR HUMAN CENTRIC BLACK BODY DIMMING

    公开(公告)号:US20220086978A1

    公开(公告)日:2022-03-17

    申请号:US17473914

    申请日:2021-09-13

    申请人: ERP POWER, LLC

    摘要: A multi-channel power supply system including a power supply circuit configured to generate a drive signal for powering a plurality of color channels based on an input power signal, 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 a first reference signal, and a channel controller configured generate the first reference signal based on a color temperature according to a black body curve.

    Active preload for TRIAC dimmers
    6.
    发明授权

    公开(公告)号:US10856382B2

    公开(公告)日:2020-12-01

    申请号:US15977765

    申请日:2018-05-11

    申请人: ERP Power LLC

    发明人: Louis Chen

    摘要: An active preload circuit includes: a rectifier configured to receive an AC input from a TRIAC dimmer and to generate DC power; a preload; and a phase angle controller configured to selectively couple the preload to the DC power.

    MULTI-CHANNEL LED DRIVER WITH INTEGRATED LEDS HAVING A MULTILAYER STRUCTURE

    公开(公告)号:US20240090095A1

    公开(公告)日:2024-03-14

    申请号:US18510457

    申请日:2023-11-15

    申请人: ERP POWER, LLC

    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.

    Light driver with improved dimming profile

    公开(公告)号:US11924933B2

    公开(公告)日:2024-03-05

    申请号:US18052107

    申请日:2022-11-02

    申请人: ERP POWER, LLC

    摘要: A light driver includes a pulse generator circuit configured to generate a pulsed signal based on a rectified input line voltage, a dimming detection circuit configured to determine whether phase-cut dimming is present at an input of the light driver based on the pulsed signal and to generate a phase-cut detection signal, and an input selection circuit configured to apply a first voltage or a second voltage to a reference input of a power factor correction (PFC) circuit of the light driver based on the phase-cut detection signal.

    Controlling LED channel current via hybrid DC and PWM reference signal

    公开(公告)号:US11864286B2

    公开(公告)日:2024-01-02

    申请号:US18052072

    申请日:2022-11-02

    申请人: ERP POWER, LLC

    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.