要达到比较高的振荡电压峰值,变压器的反射电压必须设置的比较高。
To achieve high oscillation peaks, the design of the transformer has to be set to high reflected voltage.
焦耳小偷电路是一个相当简单的转换电压很低,像从死 电池,到一个足够高的振荡电压做点有用的事情。
Many versions of the Joule Thief circuit have you winding the transformer yourself, but since I'm lazy, I bought one.
这种离析主要原理的手法有助于合理审视电源电路里诸如变化速率、振荡、钳位、缓冲、反射电压等过程。
The separation into main elements should be done in respect of reasonable events in the power circuit like on and off slopes, oscillations, clamping, snubbering, reflected voltage, etc.
直到电压加上去以后,石英晶体才会以某一频率振荡。
The quartz crystal does not vibrate at certain frequency until the voltage is applied.
分析了用运算放大器组成正弦波振荡电路的起振条件和输出电压幅值的调节及选频网络的构成。
This paper is involved in the analysis of oscillation starting condition, output voltage amplitude adjustment, and frequency selection network composition of sinusoidal coave oscillation circuit.
由此可见,加上电压后,损耗增大,因此振荡受到阻止。
It follows that with the voltage on, the losses are high, so oscillation is prevented.
该控制器以PM U得到的区域间电压相角差信号作为输入信号,能够直接有效地反映区域间低频振荡特性。
This controller's input signal is the voltage phase Angle difference between two areas obtained by PMU, which can effectively reflect the inter-area low frequency oscillation characteristics.
将示波器并联到器件和电压表上,检查振荡情况。
Check for oscillations by connecting an oscilloscope in parallel with the device and the meter.
本文研究了氖气压、输入电压、管壁温度和放电管气氛对铜蒸气激光器振荡—放大链最佳延时的影响。
Influence of Ne pressure, input voltage, wall temperature and discharge tube atmosphere on optimal delay of the CVL oscillator - amplifier chain is studied.
假如TR1的电压足够小的话,它就会改变振荡频率。
If the supply voltage to TR1 is reduce enough, it shifts the frequency of the oscillations.
采用电压和电流微分闭环控制,能有效地抑制电流振荡,为VVVF设计和制造提供了参考。
The closed - loop control of voltage and current differential has being used to depress the current oscillation, and this provides some reference for designing and manufacturing VVVF products.
分析表明,由于连接电缆两端产生的反射现象导致SPD和负载上的电压振荡。
The reflection phenomena on the cables between an external SPD and the protected equipment lead to the oscillations of the voltages on the SPD and on the load.
同时还考虑了换流器换流时换流阀内电压振荡特性。
At the same time, the voltage oscillation characteristics in the converter valve are considered while the converter is in service.
建立了转速小振荡时感应电动机的电压方程、电磁转矩和转矩方程,导出了异步转矩和阻尼转矩系数。
The voltage and torque equations of induction motor during hunting are formulated at first, then the asynchronous and damping torque coefficients are derived.
直到电压加上去以后石英晶体才开始振荡。
The quartz crystal didn't vibrate until the voltage WAS applied.
讨论了一些影响放电电压大小及频率的电源参数,如供电电压、控制信号占空比、振荡电路的电阻和电容等。
Some factors affecting the frequency and magnitude of power supply, such as supply voltage, duty of control signal, the resistance and capacitance of oscillation circuit are discussed.
仿真结果表明,该方法能有效地维持系统电压水平,同时防止多控制手段间的超调和调节振荡等现象。
The simulation results indicate that the strategy can maintain the system voltage and prevent the over-control and control oscillation among the multi-methods.
对影响放电电压大小及频率的电源参数进行了讨论,如供电电压、控制信号占空比、振荡电路的R和C等。
Some parameters affecting the frequency and magnitude of power supply, such as supply voltage, duty of control sigal. the R and C of oscillation circuit are discussed.
负阻抗会引起地铁车辆牵引变流器直流侧电压、电流振荡,降低牵引传动系统稳定性。
Negative impedances lead to DC-link voltage and current oscillation in metro traction converters and so to reduction of stability of traction drive systems.
电压调整问题包括两个方面,一个是馈线末端电压升问题,另外一个是有载调压变压器的分接头频繁动作或者振荡。
Voltage regulation includes two fields: one is voltage rise near the end of the feeder: another is the tap hunting phenomenon of tap change under load (TCUL) transformers.
在系统发生功率振荡时,通过改变转子励磁电压的相角调节双馈变速风电机组输出与振荡相关的阻尼功率,达到使风电场能够改善系统阻尼的目的。
During the power oscillation of a power system, a damping active power is injected into the network from the DFIG machine via regulating the rotor excitation voltage Angle.
负荷越靠近发电机,系统电压将越不易发生振荡失稳,但鞍结分岔对应的最大功率传输极限将减小。
When the load is near to generators, the possibility of voltage collapse caused by system voltage oscillate and the power limit corresponding to saddle-node bifurcation will decrease.
各路充电电压检测具有“回差”控制功能,可防止静态开关进入振荡状态;
Every charging circuit possesses "backlash" control function which can avoid the vibration of static switch.
在2000伏到4000伏的电压范围内,都测得了4毫米波段的高频振荡功率。
From 2000 volts to 4000 volts, the microwave oscillatory power measured is in 4mm-band.
本文分析了电压逆变器型有源滤波器系统的稳定性,提出了不用阻尼电阻抑制系统振荡的方法。
The stability of VSI active power filter systems is analyzed, and a method for suppressing transient oscillations in these systems without inserting damping resistors is proposed in this article.
在火花试验装置上进行爆炸试验,得到本质安全复合电路的放电波形,发现电弧电压基本维持在最小建弧电压,而电容电流随着电路参数的不同而发生振荡。
It was found that when the capacitive ignition occurred, arc voltage will keep minimum arcing voltage, but arc current possibly attenuates in sinusoidal form with different circuit parameters.
通过对电力系统异步运行状态的分析,提出了利用振荡中心电压的变化特征来判断系统失步的失步解列装置。
Through analysis of the out of step operation of power systems, a new out of step splitting device is proposed.
电能质量扰动主要包括谐波、电压暂降、电压暂升、电压中断、电压波动、暂态振荡、谐波暂升和谐波暂降等电能质量问题。
Power quality disturbances mainly include harmonics, voltage sags, voltage swells, voltage interrupts, flickers, oscillation transients, voltage sags with harmonic and voltage swells with harmonic.
放电振荡中的反峰电压:(3)振荡频率;
放电振荡中的反峰电压:(3)振荡频率;
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