公开(公告)号：US20110080099A1

公开(公告)日：2011-04-07

申请号：US12896459

申请日：2010-10-01

Applicant: Chia-Shen Teng ,  Tze-Ching Tung ,  Chun-Ming Chuang

Inventor： Chia-Shen Teng ,  Tze-Ching Tung ,  Chun-Ming Chuang

IPC: H05B37/02

CPC classification number: H05B33/086

Abstract: The present disclosure relates to a duty cycle adjusting circuit of a lighting system and method thereof for sensing light of a first color and a second color emitted by a light emitting device of the first color and a light emitting device of the second color to generate corresponding intensity values. Then a first pulse width correcting value and a second pulse width correcting value can be calculated for adjusting a first duty cycle and a second duty cycle of a driving current to adjust the illuminating intensity of the light emitting devices of the first and the second colors. Through these adjusting steps, the light of the first and the second colors is within a predetermined range of color temperature. Therefore, light source for stable light in color temperature is provided.

Abstract translation: 本公开涉及照明系统的占空比调整电路及其方法，用于感测由第一颜色的发光装置发射的第一颜色和第二颜色的光和第二颜色的发光装置，以产生相应的 强度值。 然后，可以计算第一脉冲宽度校正值和第二脉冲宽度校正值，以调整驱动电流的第一占空比和第二占空比，以调节第一和第二颜色的发光器件的照明强度。 通过这些调整步骤，第一和第二颜色的光在预定的色温范围内。 因此，提供了色温稳定的光源。

公开(公告)号：US08410707B2

公开(公告)日：2013-04-02

申请号：US12896459

申请日：2010-10-01

Applicant: Chia-Shen Teng ,  Tze-Ching Tung ,  Chun-Ming Chuang

Inventor： Chia-Shen Teng ,  Tze-Ching Tung ,  Chun-Ming Chuang

IPC: H05B37/02

CPC classification number: H05B33/086

Abstract: The present disclosure relates to a duty cycle adjusting circuit of a lighting system and method thereof for sensing light of a first color and a second color emitted by a light emitting device of the first color and a light emitting device of the second color to generate corresponding intensity values. Then a first pulse width correcting value and a second pulse width correcting value can be calculated for adjusting a first duty cycle and a second duty cycle of a driving current to adjust the illuminating intensity of the light emitting devices of the first and the second colors. Through these adjusting steps, the light of the first and the second colors is within a predetermined range of color temperature. Therefore, light source for stable light in color temperature is provided.

Abstract translation: 本公开涉及照明系统的占空比调整电路及其方法，用于感测由第一颜色的发光装置发射的第一颜色和第二颜色的光和第二颜色的发光装置，以产生相应的 强度值。 然后，可以计算第一脉冲宽度校正值和第二脉冲宽度校正值，以调整驱动电流的第一占空比和第二占空比，以调节第一和第二颜色的发光器件的照明强度。 通过这些调整步骤，第一和第二颜色的光在预定的色温范围内。 因此，提供了色温稳定的光源。