Light-emitting diode driving module, method of operating thereof, and lighting apparatus including the same

A method for driving dimmable, light-emitting diodes activated by a modulated rectified voltage and controlled through driving nodes, the method comprising the steps of:

• receiving a dimming signal indicative of a degree of modulation of the rectified voltage;
• driving the light-emitting diodes by controlling current conducted to the driving nodes depending on the dimming signal;
• blocking the current conducted to the driving nodes when a dimming level of the dimming signal decreases lower than a first threshold value;
• and
• unblocking the current conducted to the driving nodes when the dimming level of the dimming signal increases above a second threshold value higher than the first threshold value.

A dimmable, lighting apparatus comprising:

• light-emitting diodes configured to receive a modulated rectified voltage;
• and
• a light-emitting diode driving module connected to the light-emitting diodes through driving nodes, the light-emitting diode driving module comprising:
• an LED driving circuit to drive the light-emitting diodes by applying current to the driving nodes depending on a level of the rectified voltage;
• a driving current controller to receive a dimming signal indicative of a degree of modulation of the rectified voltage, and to control the current conducted to the driving nodes depending on the dimming signal;
• and
• a current blocking circuit to block the current conducted to the driving nodes when a dimming level of the dimming signal decreases lower than a first threshold value, and to unblock the current conducted to the driving nodes when the dimming level increases above a second threshold value higher than the first threshold value.