| 摘要 |
<p>A pulse generator according to the present invention comprises: a phase shift pulse generating unit which outputs a ramp signal by controlling charge/discharge operations of a capacitor according to two input signals that are reversed to each other, and outputs a first pulse signal and a second pulse signal according to results of comparison of the ramp signal with an upper bound value and a lower bound value; a phase control block which outputs a phase shift control signal to control time to charge and discharge of the phase shift pulse generating unit according to comparison of a reference ramp signal with a phase shift signal, and synchronizes with a reverse phase shift control signal to output an operation control signal for a state according to a second reference pulse signal; a charge/discharge control block which is determined whether to operate according to the operation control signal, controls the charge/discharge operations of the phase shift pulse generating unit by generating the two input signals according to the first and second pulse signals, and controls the phase shift pulse generating unit to output a phase shifted ramp signal from the reference ramp signal, a phase shifted second pulse signal from the second reference pulse signal, and a phase shifted pulse signal from a first reference signal which is the reverse of the second reference pulse signal.</p> |
