Dimming control method and apparatus and dimming system
AssigneeSchneider Eelctric (Australia) Pty Ltd.
InventorLau Kwok HUNG
Life of this patent
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Abstract
Embodiments of the present invention disclose a dimming control method and apparatus and a dimming system. The method according to an embodiment of the invention includes: detecting a conduction angle of a dimming apparatus according to an output signal; and controlling a first shunt load according to the conduction angle to disconnect the first shunt load upon detecting a valid conduction angle of the dimming apparatus and to keep the first shunt load conducted upon detecting no valid conduction angle of the dimming apparatus, thereby lowering power consumption.
Claims13
A dimming control method, comprising:
- detecting a conduction angle of a dimming apparatus according to an output signal;
- and
- controlling a first shunt load according to the conduction angle to disconnect the first shunt load upon detecting a valid conduction angle of the dimming apparatus and to keep the first shunt load conducted upon detecting no valid conduction angle of the dimming apparatus.
A control apparatus, comprising a first shunt load, a detector and a controller, wherein:
- the first shunt load is configured to operate in a conducted status for maintaining normal operation and a disconnected status for lowering power consumption;
- the detector is configured to obtain an output signal and to detect a conduction angle of a dimming apparatus according to the output signal;
- and
- the controller is configured to control the first shunt load according to the conduction angle detected by the detector so that the controller controls the first shunt load to be disconnected when the detector detects a valid conduction angle of the dimming apparatus;
- and the controller keeps the first shunt load conducted when the detector detects no valid conduction angle of the dimming apparatus.
A dimming system, comprising:
- a dimming apparatus and a control apparatus comprising a first shunt load, a detector and a controller, wherein:
- the first shunt load is configured to operate in a conducted status for maintaining normal operation and a disconnected status for lowering power consumption;
- the detector is configured to obtain an output signal and to detect a conduction angle of a dimming apparatus according to the output signal;
- and the controller is configured to control the first shunt load according to the conduction angle detected by the detector so that the controller controls the first shunt load to be disconnected when the detector detects a valid conduction angle of the dimming apparatus;
- and the controller keeps the first shunt load conducted when the detector detects no valid conduction angle of the dimming apparatus, wherein:
- the dimming apparatus is configured to perform dimming and to output a conduction angle;
- and
- the control apparatus is configured to detect a conduction angle of the dimming apparatus to control the first shunt load disconnected upon detecting a valid conduction angle of the dimming apparatus and to keep the first shunt load conducted upon detecting no valid conduction angle of the dimming apparatus.
Dependencies are inferred from the claim text.