Invention Grant
- Patent Title: Solid-state light emitter power supplies, dimmable solid-state light sources, and method of powering solid-state light emitters
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Application No.: US17744869Application Date: 2022-05-16
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Publication No.: US11785688B2Publication Date: 2023-10-10
- Inventor: Meng Yang , Laszlo A. Takacs , Mina Nazari
- Applicant: LUMINII LLC
- Applicant Address: US IL Niles
- Assignee: LUMINII LLC
- Current Assignee: LUMINII LLC
- Current Assignee Address: US IL Niles
- Agency: Saul Ewing LLP
- Main IPC: H05B45/30
- IPC: H05B45/30 ; H05B45/385 ; H05B45/325 ; H05B45/355 ; H05B45/10

Abstract:
A solid-state light emitter power supply includes a first rectifier circuit, a second rectifier circuit, a power factor correction (PFC) stage, a first flyback converter, a second flyback converter, and a microcontroller. The rectifier circuits are configured to receive phase-cut signals from respective dimmer circuits as inputs and output respective phase-cut rectified power signals. The PFC stage is configured to receive a sum of the phase-cut rectified power signals as input and output a power-factor corrected electrical power to the flyback converters. The flyback converters are connected in parallel and are configured to power respective loads including a respective solid-state light emitter. The microcontroller is configured to receive signals derived from the phase-cut signals as inputs and to output respective pulse-width modulation (PWM) control signals to each of the flyback converters. Each flyback converter receives a respective power output portion of the power-factor corrected electrical power in accordance with the respective PWM control signals.
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