一种自适应环形振荡器

• Format: Patent
• Language: Chinese
• Published: 16.04.2024
• Subjects: AUTOMATIC CONTROL, STARTING, SYNCHRONISATION, OR STABILISATIONOF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES; BASIC ELECTRONIC CIRCUITRY; ELECTRICITY

本发明公开了一种自适应环形振荡器，包括自适应PVT的直流电压供给电路和N级环形振荡器，其中：自适应PVT的直流电压供给电路，与N级环形振荡器相接，用于在不同PVT情况下产生不同的直流电压，并用该直流电压来改变N级环形振荡器中延时单元的延时时间，进而对N级环形振荡器中的振荡频率进行补偿；其中，N为奇数，且N≥3。本发明公开的一种自适应环形振荡器，其设计科学，能够随着PVT变化而对应产生不同的直流供给电压，用来控制环形振荡器中延时单元的延时时间，从而实现提升环形振荡器整体频率稳定性的效果，具有较好的应用前景，具有重大的实践意义。 The invention discloses a self-adaptive ring oscillator which comprises a self-adaptive PVT direct-current voltage supply circuit and N stages of ring oscillators. The self-adaptive PVT direct-currentvoltage supply circuit is connected with the N stages of ring oscillators and used for generating different direct-current voltages under different PVT conditions and changing the delay time of delayunits in the N stages of ring oscillators by using the direct-current voltages so as to compensate the oscillation frequency in the N stages of ring oscillators, wherein N is an odd number, and N isgreater than or equal to 3. The self-adaptive ring oscillator disclosed in the invention is simple in structure and scientific in design, can correspondingly gen