US 12,452,970 B2
Emergency power supply dimming circuit under the control of current supply and 0-10V voltage
Huishi Tan, Shenzhen (CN); and Tengfei Zhou, Yichun (CN)
Assigned to Dongguan Haiyue Intelligent Technology Co., Ltd, Dongguan (CN)
Filed by Dongguan Haiyue Intelligent Technology Co., Ltd, Dongguan (CN)
Filed on Nov. 20, 2023, as Appl. No. 18/514,703.
Claims priority of application No. 202322610200.6 (CN), filed on Sep. 22, 2023.
Prior Publication US 2025/0106959 A1, Mar. 27, 2025
Int. Cl. H05B 45/10 (2020.01); H05B 45/325 (2020.01); H05B 45/345 (2020.01)
CPC H05B 45/10 (2020.01) [H05B 45/325 (2020.01); H05B 45/345 (2020.01)] 10 Claims
OG exemplary drawing
 
1. An emergency power supply dimming circuit under the control of a current supply and a 0-10V voltage, characterized by comprising:
an inductor main control circuit comprising a first MCU chip (U3), a power supply input corresponding to the first MCU chip (U3) being connected to a 5V VCC terminal, and an output terminal corresponding to the first MCU chip (U3) being connected to a DIM1-SIGNAL1 terminal and an MW-PWM terminal;
an emergency power supply main control circuit including a second MCU chip (U7), an input terminal corresponding to the second MCU chip (U7) being connected to a DIM1-SIGNAL2 terminal, and an output terminal corresponding to the second MCU chip (U7) being connected to a UPS PWM terminal and an IO terminal;
a first dimming detection circuit, an input terminal corresponding to the first dimming detection circuit being electrically connected to the MW-PWM terminal, and an output terminal corresponding to the first dimming detection circuit being electrically connected to a first dimming line (DIM1+), the DIMI-SIGNALI terminal, and a second dimming line (DIM1−) respectively;
a second dimming detection circuit, an input terminal corresponding to the second dimming detection circuit being electrically connected to the UPS PWM terminal, and an output terminal corresponding to the second dimming detection circuit being electrically connected to the first dimming line (DIM1+), the DIM1-SIGNAL2 terminal, and the second dimming line (DIM1−) respectively; and
a current supply circuit, an input terminal corresponding to the current supply circuit being electrically connected to the UPS PWM terminal, and an output terminal corresponding to the current supply circuit being electrically connected to the first dimming line (DIM1+), the second dimming line (DIM1−), and the DIM1-SIGNAL2 terminal respectively.