
[电子] 寄生振荡
A method for suppressing the regular bands parasitic oscillation caused in the sequence laser amplification by placing a glaring grating is introduced.
讨论了放大级中寄生振荡的成因,提出了在放大级中放置一闪耀光栅来抑制常规带寄生振荡的方法。
Some measures for the prevention of self-induced oscillation and the suppression of parasitic feedback is introduced at a practical angle, . then the detailed circuit is offered.
从实用角度介绍了防止放大器自激振荡和抑制寄生反馈的措施并给出了具体电路。
These factors are the relaxation oscillation frequency of LD chip, the parasitic parameters of LD chip and module, and the driving circuit frequency characteristics of lasers.
芯片及组件的寄生参量以及激光器匹配驱动电路的频率特性。
For example, the peak at 20 MHz in the spectrum is caused by the parasitic oscillation due to the output capacitance of the MOSFET and the leakage inductance of the transformer.
举例说明,20兆赫兹的峰点是钳位过程结束后主要由场效应晶体管输出电容和变压器漏感引起的寄生振荡产生的。
However, there exists a problem of this kind of converter, that the output rectifier diodes suffer the parasitic oscillation and voltage spike resulted by the reverse recovery of the rectifier diodes.
移相全桥零电压变换器是中大功率直直变换场合的理想拓扑之一,但在其输出整流二极管反向恢复时,整流桥产生寄生振荡,二极管上存在很高的尖峰电压。
The discussion woudl be centred on more power MOSFET parallel connection, avoiding parasitic oscillation and the measures of anti-interference.
重点讨论了多个功率场效应管的并联,寄生振荡的防止及抗干扰措施。
However, a problem of this kind of converter is that the output rectifier diodes suffer the parasitic oscillation and voltage spike caused by the reverse recovery of the rectifier diodes.
推挽正激变换器是低压大电流输入场合的理想拓扑之一,但其输出整流二极管上由于反向恢复产生很高的电压尖峰。
Dispersion, cut off frequency and parasitic oscillation arc compared and analyzed systematically for Lumped-mass, Consistent-mass and Hybrid-mass one-dimensional finite element model.
本文系统地对比分析了集中质量、一致质量和混合质量有限元一维离散模型中弹性波的频散、截止频率和寄生振荡性质。
Then the parasitic oscillation is theoretically analyzed, and a method for eliminating the parasitic oscillation is introduced.
本文对寄生振荡进行理论了分析,并提出避免寄生振荡的措施。
|spurious oscillation;[电子]寄生振荡
寄生振荡(Parasitic Oscillation)是指在电子电路(尤其是放大器或振荡器)中,由于电路元件或布局的非理想特性(如分布电容、电感、导线电感、元件引线电感等)意外形成的正反馈回路,导致电路在非设计频率下产生的不必要、自维持的振荡现象。这种振荡通常出现在高频(射频)或高速数字电路中,会干扰电路的正常工作,造成信号失真、效率下降、发热甚至器件损坏。
详细解释:
产生机理:
危害:
常见抑制措施:
权威参考来源:
“Parasitic oscillation”(寄生振荡)是电子工程领域的术语,指电路中非预期的、由寄生参数(如电容、电感)引发的自激振荡现象。以下为详细解释:
如需进一步了解具体案例或技术细节,和中的工程应用分析。
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