JP2015032451A5

JP2015032451A5 -

Info

Publication number: JP2015032451A5
Application number: JP2013161191A
Authority: JP
Filing date: 2013-08-02
Publication date: 2016-09-08
Anticipated expiration: 2033-08-02

Description

本発明の点灯装置は、外部電源から供給される電流に応じて点灯する第一の光源と前記第一の光源と異なる色温度で点灯する第二の光源とを点灯させる点灯回路において、外部からパルス信号を入力する１つのインターフェースと、前記インターフェースから入力されたパルス信号の変化量に応じて、第一の光源に供給される電流を調整するための第一点灯制御信号と第二の光源に供給される電流を調整するための第二点灯制御信号とを生成する制御回路と、前記第一点灯制御信号に基づいて、前記第一の光源に供給する電流を調整する第一の点灯制御回路と、前記第二点灯制御信号に基づいて、前記第二の光源に供給する電流を調整する第二の点灯制御回路と、を備え、前記制御回路は、前記第一の光源と前記第二の光源に供給される電流の変化量が等しくなるように前記第一点灯制御信号及び第二点灯制御信号を生成する第一の動作モードと、前記第一の光源と前記第二の光源に供給される電流の変化量が異なるように第一点灯制御信号及び第二点灯制御信号を生成する第二の動作モードとを有し、前記外部電源と接続される電源スイッチがオンである場合に、該電源スイッチがオフとされてからオンとされるまでの停止時間間隔と、該電源スイッチがオフとされ、再度オンとされる回数とに応じて前記第一の動作モードと前記第二の動作モードとを切り替えることを特徴とする。
The lighting device of the present invention is a lighting circuit for lighting a first light source that is turned on according to a current supplied from an external power source and a second light source that is turned on at a different color temperature from the first light source. One interface for inputting a pulse signal, a first lighting control signal for adjusting a current supplied to the first light source in accordance with a change amount of the pulse signal inputted from the interface, and a second light source a control circuit for generating a second lighting control signal for adjusting the current supplied, on the basis of the first point light control signal, the first lighting control circuit for adjusting the current supplied to the first light source If, on the basis of the second point light control signal, and a second lighting control circuit for adjusting the current supplied to the second light source, the control circuit, the said first light source the second Current supplied to the light source The amount of change in the current supplied to the first light source and the second light source is different from the first operation mode for generating the first lighting control signal and the second lighting control signal so that the amount of change is equal. and a second operation mode for generating a first point light control signal and the second point light control signal, the power switch to be connected to the external power source when it is turned on, the power source switch is turned off so that Switching between the first operation mode and the second operation mode according to a stop time interval from when the power is turned on until the power switch is turned off and turned on again And

Claims

In a lighting circuit for lighting a first light source that lights in response to a current supplied from an external power source and a second light source that lights at a different color temperature from the first light source,
One interface for inputting pulse signals from outside,
According to the change amount of the pulse signal input from the interface,
A control circuit for generating a first lighting control signal for adjusting the current supplied to the first light source and a second lighting control signal for adjusting the current supplied to the second light source;
Based on the first point light control signal, and the first lighting control circuit for adjusting the current supplied to the first light source,
Based on the second point light control signal, and a second lighting control circuit for adjusting the current supplied to the second light source,
With
The control circuit includes:
A first operation mode for generating the first lighting control signal and the second lighting control signal so that the amount of change in current supplied to the first light source and the second light source is equal;
And a second operation mode that generates the first light source and the second first point light control signal so that the amount of change current supplied is different to the light source and the second point light control signals,
When the power switch connected to the external power supply is on, the stop time interval from when the power switch is turned off to when it is turned on, and the number of times the power switch is turned off and turned on again And switching between the first operation mode and the second operation mode according to the above.

The control circuit includes a timer for measuring the stop time interval;
A counter that counts the number of times the stop time interval is equal to or less than a threshold;
With
Lighting device according to claim 1, characterized in that switches the operation mode when the value of the counter is equal to or larger than the threshold value.

Wherein the control circuit includes a further comprising a memory for storing the on-duty ratio of the pulse signal switching of the operation mode corresponding to said first point light control signal and the second point light control signal when the ends The control circuit according to claim 1 or 2.