LOW-POWER OSCILLATOR USING TRIANGULAR WAVE

• Main Authors: JUNG, WON JAE, JANG, JONG EUN, JUNG, HYO BIN, PARK, JUN SEOK
• Format: Patent
• Language: English; Korean
• Published: 08.12.2014
• Subjects: BASIC ELECTRONIC CIRCUITRY; ELECTRICITY; PULSE TECHNIQUE

The present invention relates to a low power oscillator using a triangular wave. The oscillator according to the present invention comprises: a pulse generating unit which generates a pulse signal according to a predetermined period; a square wave generating unit which is connected to the pulse generating unit and outputs a square wave signal, which is generated to correspond to the pulse signal inputted through a clock terminal and a clear signal inputted through a clear terminal, through an output terminal; a triangular wave generating unit which generates a triangular wave signal by outputting a first signal, which increases from a low level to a high level at a predetermined slope, and a second signal, which decreases from the high level to the low level at a predetermined slope, corresponding to an on/off switching operation which is controlled by the square wave signal outputted from the square wave generating unit; and an oscillating unit which compares a voltage of the triangular wave signal outputted from the triangular wave generating unit with an oscillation reference voltage, and outputs a square wave oscillation signal which has the high level, when the voltage of the triangular wave signal is greater than or equal to the oscillation reference voltage, and the low level, when the voltage of the triangular wave signal is smaller than or equal to the oscillation reference voltage. According to the present invention, the oscillation signal can be provided at low power, and a pulsewidth and an oscillation frequency of the oscillation signal can be simply adjusted.