公开(公告)号：US09155137B2

公开(公告)日：2015-10-06

申请号：US13831874

申请日：2013-03-15

Applicant: FSP TECHNOLOGY INC.

Inventor： Cheng-Hui Yang ,  Ching-Chia Chu

IPC: H05B33/08

CPC classification number: H05B33/0809 ,  H05B33/0815 ,  H05B33/089 ,  Y02B20/347

Abstract: A load driving apparatus related to an LED lamp and a method thereof are provided. The load driving apparatus includes a PWM-based power converter and a determination circuit. The PWM-based power converter is coupled to the LED lamp, and is configured to: generate a DC operation voltage of the LED lamp; and control a current flowing through the LED lamp in response to a dimming signal, so as to adjust a brightness of the LED lamp. The determination circuit is coupled to the PWM-based power converter and the LED lamp, and is configured to: receive the DC operation voltage; and stop conducting the DC operation voltage to the LED lamp in case that a lamp-off condition of the LED lamp is satisfied.

Abstract translation: 提供了与LED灯有关的负载驱动装置及其方法。 负载驱动装置包括基于PWM的功率转换器和确定电路。 基于PWM的功率转换器耦合到LED灯，并被配置为：产生LED灯的直流工作电压; 并响应于调光信号控制流过LED灯的电流，以调节LED灯的亮度。 确定电路耦合到基于PWM的功率转换器和LED灯，并且被配置为：接收DC操作电压; 在满足LED灯的熄灯状态的情况下，停止对LED灯的直流动作电压。

公开(公告)号：US20140015412A1

公开(公告)日：2014-01-16

申请号：US13831874

申请日：2013-03-15

Applicant: FSP TECHNOLOGY INC.

Inventor： Cheng-Hui Yang ,  Ching-Chia Chu

IPC: H05B33/08

CPC classification number: H05B33/0809 ,  H05B33/0815 ,  H05B33/089 ,  Y02B20/347

Abstract: A load driving apparatus related to an LED lamp and a method thereof are provided. The load driving apparatus includes a PWM-based power converter and a determination circuit. The PWM-based power converter is coupled to the LED lamp, and is configured to: generate a DC operation voltage of the LED lamp; and control a current flowing through the LED lamp in response to a dimming signal, so as to adjust a brightness of the LED lamp. The determination circuit is coupled to the PWM-based power converter and the LED lamp, and is configured to: receive the DC operation voltage; and stop conducting the DC operation voltage to the LED lamp in case that a lamp-off condition of the LED lamp is satisfied.

Abstract translation: 提供了与LED灯有关的负载驱动装置及其方法。 负载驱动装置包括基于PWM的功率转换器和确定电路。 基于PWM的功率转换器耦合到LED灯，并被配置为：产生LED灯的直流工作电压; 并响应于调光信号控制流过LED灯的电流，以调节LED灯的亮度。 确定电路耦合到基于PWM的功率转换器和LED灯，并且被配置为：接收DC操作电压; 在满足LED灯的熄灯状态的情况下，停止对LED灯的直流动作电压。