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- zero current detection 零电流检测
- The frequency at zero current is 60[kHz]. 零电流的频率为60 [千赫] 。
- System capacity is calculated by the accurate current detection. 系统电量通过电流测量获得;高精确度.
- A flyback converter with zero current switching (ZCS) resonant and power factor correct (PFC) is proposed. 提出了一种具有零电流关断(ZCS)的反激式单级功率因数校正(PFC)变换器。
- The characteristics of a new zero current switching (ZCS) - PWM cell are analyzed. 分析了一个新的零电流开关(ZCS)单元电路的特性。
- Furthermore, reverse recovery losses of main diodes are minimized, and auxiliary switches commutate at zero current. 此外,续流二极管的反向恢复损耗被降低到最小,辅助开关也实现了零电流开关。
- I would be interested to get info and quote about leakage current detection interrepters (lcdi) , for North American market with UL approved. 我们有兴趣采购泄漏即时探测器;供应北美市场;需要通过UL认证.
- This method is similar to the current-reversal method except that the measurements are alternated between a fixed source current and zero current. 这种方法和电流反向法类似,只是这种方法在固定的源电流和零电流之间交替进行测量。
- Fundamentals,current detection methods and separation modes of capillary electrophoresis(CE) were introduced. 介绍了毛细管电泳的基本原理、分离模式和检测手段。
- An advanced technique,pulsed eddy current detection,was introduced for corrosion detection. 介绍了一种新型的腐蚀检测技术,即脉冲涡流检测技术。
- The paper presents a novel ultra-audio frequency (UAF) induction welding power based on ZCS-PWM(Zero Current Switching-Pulse Width Modulation) technology. 介绍一种基于ZCS-PWM(零电流开关-脉宽调制)技术的新型超音频感应焊接电源。
- Associated with ion current detection device, this system can test and compare different kinds of spark plugs. 该系统配合火花塞离子电流检测装置,可以实现对不同火花塞热值进行测试比较的目的。
- Application of FBD-method to real-time current detection in three-phase four-wire system[J].Electric Power Automation Equipment,2006,26(8):36-39. FBD法在三相四线制系统电流实时检测中的应用[J].;电力自动化设备;2006;26(8):36-39
- To provide references for detection and prevention of ciguatera fish poisoning, in this paper, the current detection methods of ciguatoxin were reviewed. 为给雪卡毒素中毒的预防及其检测提供借鉴,本文主要对雪卡毒素现有的检测分析方法进行了综述。
- A phase shift converter can achieve zero voltage switching on the leading leg and zero current switching on the trailing leg by utilizing the reverse avalanche characteristics of IGBT. 利用IGBT的反向雪崩特性,实现伪相移变换器前臂零电压、尾臂零电流开关,使IGBT可在高开关频率下运行,且降低了开关损耗。
- The feature of zero current switching in the rectifier stage was implemented by inserting short periods of zero switching states around the points at which the rectifier stage commutes. 在此设计了一种特殊的换流策略,即在整流级换流前后,在逆变级插入零开关状态,保证了整流级的零电流换流特性。
- This paper improved the harmonic current detection method based on UPF (unity power factor), using the slipped window integral to replace the LPF (low pass filter). 本文对基于单位功率因数的谐波电流检测方法进行了改进,用移动窗积分法取代检测中常用的低通滤波器。
- Abstract: Eddy current detection for new copper tubing should be carried out bef ore the replacement of copper tubing of condenser and oil cooler in thermal powe r plant. 摘 要:火力发电厂凝结器、冷油器铜管更换前要对新铜管进行涡流检测,根据多年的检测经验,介绍在火力发电厂铜管涡流检测中的一点经验。
- This device includes selective leakage-current protection of longitude and transverse on the principle of direct current detecting and the direction of zero order current and time lag. 该保护装置利用直流检测和零序电流方向及时差原理实现纵、横向选择性漏电保护;
- In the sinusoidal systems, active current detecting is real-time with no delay. 当电压电流无畸变并平衡时,测量有功电流无过渡过程,是实时精确的;