Systems and methods for stage-based control related to TRIAC dimmers

US10624188B2 · kind B2 · utility

Assignee

• On-Bright Electronics (Shanghai) Co., Ltd. · CN

Inventors

• Zhuoyan Li · Shanghai, CN
• Liqiang Zhu · Shanghai, CN
• Xueyou Ling · Shanghai, CN
• Jun Zhou · Huai'an County, CN
• Lieyi Fang · Shanghai, CN

Key dates

• Filing date: Apr 16, 2019
• Grant date: Apr 14, 2020
• Expiry date: Apr 16, 2039

Classification

• Technology area (CPC —): General

Abstract

System controller and method for a lighting system according to certain embodiments. For example, the system controller includes a first controller terminal configured to receive a first signal, and a second controller terminal coupled to a first transistor terminal of a transistor. The transistor further includes a second transistor terminal and a third transistor terminal. The second transistor terminal is coupled to a first winding terminal of a winding, and the winding further includes a second winding terminal coupled to a capacitor. Additionally, the system controller includes a third controller terminal coupled to the third transistor terminal of the transistor, and a fourth controller terminal coupled to a resistor and configured to receive a second signal. The second signal represents a magnitude of a current flowing through at least the winding, the third controller terminal, the fourth controller terminal, and the resistor.