Alarm clock which operates in conjunction with a gradually fading-in lamp

An alarm clock which operates in conjunction with a gradually fading-in lamp, comprising:

• a power supply unit;
• a key input setting unit (110) comprising a lamp activation time setting unit (111) for setting an activation time of a lamp (140) and an alarm activation time setting unit (112) for setting an activation time of an alarm module (160);
• the lamp (140) for emitting light using power supplied by a power supply unit;
• a microcomputer (120) configured to be provided with a timer having a clock function, which is stored in a form of a program, to output a lamp drive control signal and a pulse width signal at the lamp activation time set by the lamp activation time setting unit (111), to output an alarm control signal at the activation time of the alarm module (160) set by the alarm activation time setting unit (112), and to output a time display signal to the time display unit (170);
• the time display unit (170) for receiving the time display signal output by the microcomputer (120), and then displaying current time;
• the alarm module (160) configured to be selectively turned on and off in response to the alarm control signal output by the microcomputer (120), and to output a sound alarm signal;
• a lamp power supply control unit (130) connected between the power supply unit and the lamp (140), and configured to be selectively switched on and off in response to the lamp drive control signal output by the microcomputer (120) and to control the power supplied by the power supply unit to the lamp (140);
• and
• a lamp current adjustment unit (150) connected in series to the lamp (140), and configured to perform control so that an amount of current flowing through the lamp (140) gradually increases based on the pulse width signal output by the microcomputer (120), thereby making the lamp (140) gradually fade in, wherein the pulse width signal, which is output to the lamp current adjustment unit (150) by the microcomputer (120) so that the lamp current adjustment unit (160) can perform control so that the amount of current flowing through the lamp (140) gradually increases, is characterized in that a width of a logic high pulse that turns on the lamp (140) gradually increases over time.