With the use of phase-shifted control mode and the junction capacitor of the switches, the lagging switches can realize ZVS under any load.
而通过移相控制方式,利用开关管的结电容则实现了滞后管的零电压开关。
As a transmission type filter, phase-shifted fiber Bragg grating can be widely applied in the fields of optical communications and sensing.
相移光纤光栅作为一种透射型滤波器,在光通信和传感领域有着广泛的应用。
Have carried on the detailed parameter design to the phase-shifted Full-Bridge soft switching power supply main circuit and the control circuit.
对移相全桥软开关电源主电路和控制电路进行了详细的参数设计。
In the paper and in the induction condition, using phase-shifted full-bridge control method to realize soft turn-on and soft turn-off is analyzed.
本文分析了电路工作在感性条件下,利用全桥移相软开关控制方法实现开关管的软开通与软关断。
Based on the coupled-mode theory, the transfer-matrix method is used to calculate the transmission spectra of phase-shifted long-period fiber gratings (LPFG).
应用耦合模理论和传输矩阵法计算模拟了长周期光纤光栅的透射谱,并对其进行了切趾优化。
A new high frequency DCDC full-bridge power converter is presented, that the soft-switching, phase-shifted PWM and bi-directional DCDC converter hang together.
研究一种把软开关技术和移相pwm控制技术以及双向DC DC变换器技术有机结合在一起的新型高频DC DC开关功率全桥变换器。
The power supply USES BOOST converter for power factor correction and voltage regulation, and it converts DC to HF ac square wave with phase-shifted full bridge.
电源通过BOOST电路校正功率因数和调节电压,用移相全桥把直流电逆变成高频方波,然后经高频变压器升压后倍压整流得到直流高压。
It could ensure the best efficiency by making the output frequency to trace the resonance frequency with the frequency tracing technique and phase-shifted control.
本文利用频率跟踪和移相控制技术,使电源输出频率跟踪负载谐振频率变化,以保证最佳加热效率。
Phase-shifted full-bridge PWM converters work in discontinuous current mode (DCM), when the current of out-put filter inductor is discontinuous in one switching period.
当输出滤波电感的电流在一个周期内不连续时,移相全桥PWM变换器就工作在电流断续模式(DCM)。
Choose the control circuit with the digital system based on DSP, particularly present the realization method of phase-shifted PWM and software flow chart of the control system.
控制电路采用基于DSP的数字化控制系统,详细给出了移相pwm的实现原理和控制系统的软件流程图。
The results of analysis indicate that the moiré gratings technology can be well applied in fabricating the high-performance phase-shifted and apodised long-period fibre gratings.
分析结果表明,莫尔光栅技术在制作高性能的相移长周期光栅和变迹长周期光栅上有着很好的应用前景。;
The transmittivity of phase-shifted FBG is computed using the method of transfer matrix. The result shows the availability of decreasing the power of pump by using the phase-shifted FBG.
应用传输矩阵法计算了相位位移光纤光栅的透射特性,表明相位位移光纤光栅用于光开关可降低光功率的要求。
The paper briefly describes the principle of full-bridge soft-switching phase-shifted control and the electric characteristic of the phase shift resonant controller UC3875 are introduced.
简要描述了全桥软开关移相控制的原理,介绍了谐振控制器uc 3875的电气特性。
A novel cascade multi-level converter with carrier phase-shifted SPWM (CPS-SPWM) technique is proposed in this paper. This converter has good prospect in engineering due to its perfect performance.
本文提出的基于载波相移穴CPS -SPWM雪技术的级联型变流器同时具有CPS - SPWM技术与多电平变流技术的优点,因而有广泛的工程应用前景。
For isolated-type symmetry half-bridge bidirectional converter with phase-shifted control, a simplified circuit under 4 modes using the primary windings of transformer as reference object is built.
以隔离型对称半桥双向变换器为对象,建立了以原边为参考的4种模式下的简化电路,提出了结合开关函数的状态空间平均模型的建立方法。
This paper proposes a novel phase-shifted zero-voltage-switch three-level converter. The operation principle of this converter is analyzed, and its phase-shifted circuit and drive circuit are given.
提出了一种新颖的移相控制零电压开关三电平变换器,分析了该变换器的工作原理,并给出了移相控制电路和驱动电路。
Phase shifted converter realizes zero voltage switching (ZVS) with the use of leakage inductance of the main transformer, however, the realization of ZVS for lagging bridge leg is difficult.
移相控制全桥变换器能够实现开关管的零电压开关,但滞后桥臂难度很大。
We put forward a new method to realize optical label switches using the phase shifted effective in Bragg phase shifted grating and device a experiment to achieve optical label switching.
提出了用布拉格相移光纤光栅中相移来实现低功率的光标交换的新方法。设计了一个基于该方法的光标记交换实验。
Its principle is analyzed in this paper, and the relation of phase shifted Angle, the amplitude of each harmonic content and the THD is also analyzed in detail.
本文分析了工作原理,并对移相角与输出各次谐波的幅值,THD的关系做了详细的理论分析。
Phase - shifted converter realizes zero - voltage - switching with the use of leakage inductor of the main transformer, however, the realization of ZVS for lagging bridge leg is difficult.
移相控制全桥变换器能够实现开关管的零电压开关,但滞后桥臂难度很大。
Then, the echo is shifted by introducing a phase ramp in the frequency domain.
然后,通过在频域引入一个相位斜坡来实现回波在距离向上的平移。
According to the shifted distance and the phase increment, the mapping relationship between phase difference and depth of object can be determined by a least squares method.
该技术通过平移实物参考面,测得其上位相分布,利用其位移距离与位相增量之间的关系,以最小二乘方法计算位相差与物面深度之间的映射关系。
The carrier shifted-phase PWM technique can been used in cascade multilevel inverter, in addition, the step waveform strategy is good strategy, too.
级联型多电平变频器控制策略除了采用载波相移PWM技术外,阶梯波算法也是一种比较好的控制策略。
An electronics transformer rectifier unit(TRU)with the output of 28.5V/100A DC is developed by using a novel phase shifted zero voltage and zero current switching PWM converter topology.
采用一种新型移相控制零电压零电流开关PWM全桥变换器拓扑,研制成2 8.5V/10 0A的航空电子变压整流器。
After the base phase and basic fat metabolism have been established, training time should be shifted into very prolonged runs of three or more hours, depending on your event.
经过最初的阶段后而且基本的脂肪代谢机制己被建立,训练时间即可延长至3小时以上的超长跑,视你准备挑战的距离而定。
The frequency shift induced by cross-phase modulation (XPM) in dispersion-shifted fiber (DSF) is experimentally studied, then wavelength conversion is achieved through filtering by fiber grating.
对色散位移光纤中交叉相位调制效应导致连续波产生频移进行了实验研究,并用光纤光栅滤波实现了波长转换。
The frequency shift induced by cross-phase modulation (XPM) in dispersion-shifted fiber (DSF) is experimentally studied, then wavelength conversion is achieved through filtering by fiber grating.
对色散位移光纤中交叉相位调制效应导致连续波产生频移进行了实验研究,并用光纤光栅滤波实现了波长转换。
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