Color temperature and brightness control system for LED lamp

A color temperature and brightness control system for an LED lamp, applied to a ceiling fan, the ceiling fan having a lamp, the lamp being an LED lamp;

• the color temperature and brightness control system comprising:
• a switch, having a switch signal, wherein when the switch is not actuated, the switch signal has a normal potential, when the switch is actuated, the switch signal has an actuation potential;
• a detection module, electrically connected to the switch, the detection module receiving the switch signal and detecting a duration of the actuation potential and a duration of the normal potential of the switch signal to output a detection signal;
• a determining module, configured to receive the detection signal and determines the duration of the actuation potential to output a determination signal;
• a memory module, configured to memorize a state of the lamp, the memory module outputting a lamp state signal, the lamp state signal including the state of the lamp, the state of the lamp including an on/off state, a color temperature state and a brightness state of the lamp;
• a control module, being in signal communication with the determining module, the control module receiving the determination signal, the determining module and the control module being in signal communication with the memory module for the memory module to store the state of the lamp so that the control module receives the lamp state signal, the control module outputting a control signal according to a calculation result of the determination signal and the lamp state signal;
• wherein the control signal is used for an on/off control, a color temperature control and a brightness control of the lamp;
• and
• a drive unit, electrically connected to the lamp and the control module, the drive unit receiving the control signal of the control module to output a drive signal for driving the lamp to be actuated,
• wherein the determining module further determines a combination of the duration of the actuation potential and the duration of the normal potential, the determining module has at least one actuation time determining unit and at least one interval time determining unit, the actuation time determining unit and the interval time determining unit of the determining module are in signal communication with the detection module and receive the detection signal, each actuation time determining unit presets an actuation potential duration range and compares the duration of the actuation potential with the actuation potential duration range of the actuation time determining unit, each interval time determining unit presets an interval time range and compares an interval time between two adjacent actuation potentials and the interval time range of the interval time determining unit, and the determination signal includes a comparison result of the actuation time determining unit of the determining module and a comparison result of the actuation time determining unit and the interval time determining unit.