Patent ID: 9621107
Date: 2017-04-11
CPC Classifications: H03B,H03L

Claim:
1. An oscillation circuit comprising: a circuit for oscillation, wherein the circuit causes a vibration piece to oscillate and the circuit outputs a first oscillation signal; a voltage adjustment circuit connected to the circuit for oscillation; a signal adjustment circuit connected to the circuit for oscillation and that adjusts a frequency of the first oscillation signal; and a terminal that receives a direct-current voltage, wherein the voltage adjustment circuit and the signal adjustment circuit are coupled to the terminal and receive an input voltage based on the direct-current voltage, further wherein: the voltage adjustment circuit converts the direct-current voltage to a predetermined voltage value, and outputs the predetermined voltage value to the circuit for oscillation, the signal adjustment circuit determines an output voltage based on the direct-current voltage and provides the output voltage to the circuit for oscillation, wherein the output voltage controls the frequency of the first oscillation signal, and the direct-current voltage is a voltage that has been superimposed with variable voltage of variable width in order to adjust the power supply for driving the circuit for oscillation and to adjust the frequency of the first oscillation signal.