Relaxation oscillator and signal control method

The invention discloses a relaxation oscillator and a signal control method. The relaxation oscillator comprises a first capacitor, a second capacitor, a reference generation circuit, a charging switch, a discharging switch, a processing circuit, a comparison unit and a switch control logic circuit. According to the relaxation oscillator and the signal control method provided by the invention, the change quantity of the switch conduction impedance is reduced through the complementary switch circuit, and the influence of the conduction impedance of a single switch on the vibration frequency precision is compensated; a non-overlapping control signal is generated through a switch control logic circuit to control a group of charging switches, so that the group of charging switches are prevented from being switched on simultaneously to generate leakage current; the processing circuit controls the threshold voltage of the comparison unit so as to compensate the delay time of the comparison unit. 本发明公开了一种弛豫振荡器及信号控制方