Circuit device for operating light source e.g. LED module has temperature monitoring circuit that turns OFF/allows operation of light source when temperature is exceeded/below than temperature thresholds

摘要

The circuit device (1) has voltage supply unit to provide a supply voltage of light source (100). A temperature monitoring circuit (10) turns OFF the operation of the light source when the temperature is exceeded the first temperature threshold and allows the operation of the light source when the temperature is below than second temperature threshold which is lower than first temperature threshold.