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CIRCUIT OF INDUCTANCE/CAPACITANCE (LC) VOLTAGE-CONTROL OSCILLATOR
CIRCUIT OF INDUCTANCE/CAPACITANCE (LC) VOLTAGE-CONTROL OSCILLATOR
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机译:电感/电容(LC)电压控制振荡器电路
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摘要
A circuit of inductance/capacitance (LC) voltage control oscillator (VCO) includes an LC VCO unit, a peak detector and a processing unit. The LC VCO unit receives a current control signal and outputs an oscillating voltage signal. The peak detector receives the oscillating voltage signal to obtain an averaged voltage value. The processing unit receives the averaged voltage value to accordingly output the current control signal and feedback to the LC VCO unit. The processing unit also detects whether or not the averaged voltage value has reached to a saturation state and a corresponding critical current. After the current control signal reaches to the critical current, the current control signal is set within a variance range near the critical current.
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