Abstract: An oscillator circuit for efficiently generating a triangular wave signal having multiple phases. The oscillator circuit includes capacitors, each having two terminals and having a voltage between the two terminals. The capacitors include a first capacitor. A plurality of charge/discharge switching circuits are connected to the first capacitor. Each of the charge/discharge switching circuits generates a switching signal for an associated one of the switches to control the charging and discharging of the associated capacitor. The switching signals of the charge/discharge switching circuits have different phases. Each of the charge/discharge switching circuits receives a first capacitor voltage between the terminals of the first capacitor and compares the first capacitor voltage with a first reference voltage and a second reference voltage to generate the switching signal that has a predetermined phase. A triangular wave signal is generated at one of the two terminals of each of the capacitors.

Abstract: An oscillator circuit for efficiently generating a triangular wave signal having multiple phases. The oscillator circuit includes capacitors, each having two terminals and having a voltage between the two terminals. The capacitors include a first capacitor. A plurality of charge/discharge switching circuits are connected to the first capacitor. Each of the charge/discharge switching circuits generates a switching signal for an associated one of the switches to control the charging and discharging of the associated capacitor. The switching signals of the charge/discharge switching circuits have different phases. Each of the charge/discharge switching circuits receives a first capacitor voltage between the terminals of the first capacitor and compares the first capacitor voltage with a first reference voltage and a second reference voltage to generate the switching signal that has a predetermined phase. A triangular wave signal is generated at one of the two terminals of each of the capacitors.