
[電子] 寄生振蕩
A method for suppressing the regular bands parasitic oscillation caused in the sequence laser amplification by placing a glaring grating is introduced.
讨論了放大級中寄生振蕩的成因,提出了在放大級中放置一閃耀光栅來抑制常規帶寄生振蕩的方法。
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.
從實用角度介紹了防止放大器自激振蕩和抑制寄生反饋的措施并給出了具體電路。
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.
芯片及組件的寄生參量以及激光器匹配驅動電路的頻率特性。
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.
舉例說明,20兆赫茲的峰點是鉗位過程結束後主要由場效應晶體管輸出電容和變壓器漏感引起的寄生振蕩産生的。
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.
移相全橋零電壓變換器是中大功率直直變換場合的理想拓撲之一,但在其輸出整流二極管反向恢複時,整流橋産生寄生振蕩,二極管上存在很高的尖峰電壓。
The discussion woudl be centred on more power MOSFET parallel connection, avoiding parasitic oscillation and the measures of anti-interference.
重點讨論了多個功率場效應管的并聯,寄生振蕩的防止及抗幹擾措施。
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.
推挽正激變換器是低壓大電流輸入場合的理想拓撲之一,但其輸出整流二極管上由于反向恢複産生很高的電壓尖峰。
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.
本文系統地對比分析了集中質量、一緻質量和混合質量有限元一維離散模型中彈性波的頻散、截止頻率和寄生振蕩性質。
Then the parasitic oscillation is theoretically analyzed, and a method for eliminating the parasitic oscillation is introduced.
本文對寄生振蕩進行理論了分析,并提出避免寄生振蕩的措施。
|spurious oscillation;[電子]寄生振蕩
寄生振蕩(Parasitic Oscillation)是指在電子電路(尤其是放大器或振蕩器)中,由于電路元件或布局的非理想特性(如分布電容、電感、導線電感、元件引線電感等)意外形成的正反饋回路,導緻電路在非設計頻率下産生的不必要、自維持的振蕩現象。這種振蕩通常出現在高頻(射頻)或高速數字電路中,會幹擾電路的正常工作,造成信號失真、效率下降、發熱甚至器件損壞。
詳細解釋:
産生機理:
危害:
常見抑制措施:
權威參考來源:
“Parasitic oscillation”(寄生振蕩)是電子工程領域的術語,指電路中非預期的、由寄生參數(如電容、電感)引發的自激振蕩現象。以下為詳細解釋:
如需進一步了解具體案例或技術細節,和中的工程應用分析。
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