Patent ID: 11870275
Assignee: HUAWEI TECHNOLOGIES CO., LTD.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  B  Y | IPC B  H

Claim 2:
3. The apparatus according to claim 1, wherein the phase-lock control module comprises a phase detector and a voltage-controlled oscillator, wherein an input end of the voltage-controlled oscillator is connected to an output end of the phase detector, an output end of the voltage-controlled oscillator is connected to all of a first input end of the phase detector, the input end of the determining module, and the input end of the excitation module, and a second input end of the phase detector is connected to the output end of the signal collection module;
the phase detector is configured to: generate a fifth signal based on the difference between the phase of the first signal and the phase of the third signal, and output the fifth signal to the voltage-controlled oscillator; and
the voltage-controlled oscillator is configured to generate the frequency-adjusted first signal based on the fifth signal.