An empirical formula describing the dependence of the power of hysteresis loss on frequency, magnetic flux density and temperature was derived.
得出磁滞损耗功率与频率、磁通密度及温度的经验公式。
When applied to active power filter, this novel control scheme not only reduces the switching frequency and the switching loss, but also has better performance and robustness.
该控制策略在有源电力滤波器的应用，不仅大大减小了开关频率、降低了开关损耗，而且具有很强的鲁棒性和更好的控制精度。
The circuit model for IGBT simulation is provided. The relationships between IGBT power loss and the switch frequency and between IGBT power loss and grid resistance are presented.
建立了IGBT电路仿真模型，给出了IGBT功率损耗与开关频率和栅极电阻阻值之间关系的仿真结果。
The method of design high frequency transformer in half bridge inverter circuit is introduced exampled in detail, besides temperature rise and power loss are discussed.
依据一个半桥逆变电路的实例详细介绍了高频变压器设计的一般方法和步骤，并讨论变压器损耗和温升问题。
This circuit improves the working frequency, decreases the loss and the size of power.
新型开关电源的工作频率得到了大幅提高，有利于减小功率损耗和电源的体积、重量。
The feasibility and practicality of the controller are further verified in the low loss high frequency feedback power supply.
通过该控制器在低损耗高频反激电源中的应用进一步证明了它的可行性和实用性。
However, a higher carrier frequency does result in a larger number of switchings per cycle and hence in an increased power loss.
然而，由于较高的载波频率，开关较多从而在每个周期不增加功率损耗。
The shortcoming of hard switch is that the power loss of power devices increases with the switching frequency, which is no good for system integration and improvement of conversion efficiency.
在硬开关状态下，PWM功率变换器的致命弱点是开关管开关损耗随开关频率成正比增加，不利于系统的集成和转换效率的提高。
Optimal design for the windings of high frequency power transformer in SNIPS can reduce greatly the windings loss to improve SNIPS power density.
高频开关电源功率变压器线圈优化设计技术能有效减小变压器损耗以及尺寸，提高开关电源功率密度。
Applying Fourier transform frequency spectrum analysis, the equivalent formula and arithmetic for calculating the dielectric loss at power frequency are deduced.
基于这种变频法思想，结合傅里叶变换频谱分析法推导了介质损耗参数的工频等效计算公式和算法。
Compared with conventional fuzzy control methods, this method is effective to shorten the waiting time, decrease the startup stop frequency and reduces the power loss.
与常用的模糊控制方法相比，该方法可使候梯时间缩短，电梯起停次数减少，能源损耗降低，实际应用效果良好。
It has the characteristics like small volume, low power loss, quick frequency shift and elevated signal indication.
它有体积小、功耗低、频率变化速度快、信号指标高的特点。
As the working frequency of the switches in SMPS (switch Mode Power Supply) increases, the switching loss increases, too. Soft switch technique can overcome this problem.
开关电源的高频化使得功率开关的损耗加大，采用软开关技术是减小该损耗的有效手段。
The power supply of high speed electrical machine is high-frequency voltage and the loss of electrical machine density is great and heat dissipation is difficult.
高速电机的体积小、功率密度大和效率高，正在成为电机领域的研究热点之一。
The device treated by the process is of small loss of drain radio-frequency current and increased electric breakdown strength of device as well as delivered power.
经过这样处理后的器件，漏极射频电流损失小，器件击穿电压和输出功率得以提高。
DD862 single phase watt-hour meter is an induction meter which is applicable to measure the rated frequency of 50 Hz, and power loss of single-phase intercourse grid.
用途APPLICATIONDD862单相电度表系感应式单相交流有功电度表，用于计量额定频率为50hz，单相交流电网中有功电能的消耗。
Motor loss takes a large proportion in total power of pump when variable frequency pump is used.
水泵变频时电动机损耗占水泵总功耗的比例较大。
Motor loss takes a large proportion in total power of pump when variable frequency pump is used.
水泵变频时电动机损耗占水泵总功耗的比例较大。
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