In a drive system of power transistor inverter-motor, not only can it be used in fine control of motor current waveform, phase, amplitude and frequency, but can also be used to sense, fault current.
在大功率晶体管逆变器——电动机驱动系统中,它不但可用来对电动机电流的波形、相位、幅值和频率进行精细控制,而且能快速地检测出故障电流。
High-power transistor drive is not affected by high frequencies.
大功率晶体管驱动不受高频影响。
Second breakdown mechanisms of bipolar power transistor is summarized.
概述了双极功率晶体管二次击穿机理。
In this paper, the failure analysis of a type of high frequency power transistor is introduced.
介绍了对某型号高频大功率晶体管进行的失效分析。
Metal wire bonding interconnection is the key means in the internal matching technology of RF power transistor.
金属键合线互连是射频大功率晶体管内匹配技术中的关键手段。
A method for measuring and controlling the junction temperature of power transistor during succession operation life test is proposed.
为了在试验周期中了解晶体管的结温,提出一种在功率晶体管稳态工作寿命试验过程中结温的测量与控制方法。
The diameter, length, arch height and space of bond-wires have great impacts on the radio frequency performance of RF power transistor.
键合线的直径、长度、拱高和并列键合线间距等物理参量,均对器件性能有很大影响。
The principle of PAM PWM compound control and the power transistor AC adjustable speed system based on that principle are presented in this paper.
本文介绍PAM、PWM复合控制原理和按此原理研制的大功率晶体管宽调速交流调速系统。
The traditional methods for power transistor cant apply to power bare die due to various reasons such as high temperature and high operating currents.
由于存在高温度、大电流等问题,传统的测试与老化筛选功率管的方法不能完全适用于功率裸芯片。
The high-speed digital frequency mixer made of medium-scale integrated circuits and the design of a high power transistor amplifier are also presented.
介绍了高速中规模集成数字频率合成器、晶体管高频大功率放大器的设计。
One inherent limitation of the forward converter is that the transformer must be reset during the power transistor off period. Thus, additional reset circuitry has to be used.
但是它的一个固有缺陷是功率晶体管截止期间变压器必须磁复位,因而需要采用附加的复位电路。
This paper describes the unload circuits which are used in power transistor (SOA). RCD unload circuit and a novel unload circuit without energy losses are presented, their effects are discussed.
本文讨论了大功率晶体管在开关过程中的卸载问题,给出了RCD卸载电路及一种新颖的无损耗卸载电路,分析了卸载电路的工作过程。
For a long time, a common and popular method to solve current convergence problem of microwave power transistor is using emitter ballasting resistor, such as PTC, CTR thermistor, passive devices etc.
长期以来,解决微波功率晶体管的电流集中问题的通用做法是使用发射极镇流电阻,以及PTC,CTR热敏电阻等无源器件。
For a long time, a common and popular method to solve current convergence problem of microwave power transistor is using emitter ballasting resistor, such as PTC, CTR thermistor, passive devices etc.
长期以来,解决微波功率晶体管的电流集中问题的通用做法是使用发射极镇流电阻,以及PTC,CTR热敏电阻等无源器件。
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