To minimize the post - development modification costs of smps , a set of rules is presented to establish a simple comprehensive model for conducted emi in switching circuits 为了减少修改开关电源设计的成本,本文提出了一套规则用于建立一个简单而广泛适用的开关电路传导emi模型。
At the same time , this paper also designed and composed the main structure circuits and its auxiliary circuits that are mainly constituted by intelligent power model ( ipm ) 采用以igbt为开关电路的智能功率模块构成统一潮流控制器主电路,设计和制作了外围驱动电路和辅助电路。
Semiconductor devices - discrete devices - part 8 : field - effect transistors - section 3 : blank detail specification for case - rated field - effect transistors for switching applications 半导体器件.分立器件和集成电路.第8部分:场效应晶体管.第3节:开关电路用场效应晶体管空白详细规范
Compared with all kinds of mixer circuits and emphasized on improving linearity of the mixer , double balance current switch circuit has been chosen for mixer 对比分析混频器的各种拓扑结构,从提高混频器的线性度出发,折衷考虑功耗、线性度、增益等因素的影响,选取双平衡电流开关电路作为混频器的核心单元。
To cancel the offset - voltage of the comparator , a switch capacitance circuit is used between the three pre - amplifier stages . the charge pump circuit is used to boost the clock voltage of the switch transistor 采用电荷泵电路提供开关管栅过驱动电压,带隙基准电路作为电荷泵稳定电压的输入,有利于改善开关电路的性能。
But the original locomotive resistance - load test bed adopts scr as switched element , as a result , switched circuit cannot regulate the current freely , and the speed of motor with air - blower cannot be regulated too 原干阻试验台由于全部采用可控硅作为开关元件,所以开关电路复杂,不能对负载进行灵活的调节,风机电机不能调速。
The main loop of the welder uses a thyratron transistor non - contact switch circuit , quick and reliable close time , accurate timing of welding , high precision of welding , good repeatability , bring a high quality welding 焊机主回路采用晶闸管无触点开关电路,关断时间快、可靠,焊接定时精确,焊接精度高,重复性好,可实现高品质焊接。
The active - clamp network is used to clamp the voltage across power switches , and to achieve zero - voltage - turn - on of the power switchs , etc . detailed analysis and simulation of the converter are performed , from which some important results are obtained 着重介绍了有源箝位zvs软开关电路的特点及其在升压型直直变换器中的应用,并给出了主要的仿真波形。
For the limitations of traditional pwm hard switching circuit , a kind of zero of pair soft switching technology is introduced and the switching loss can be cut down by it and the reliability of inverter in case of high frequency can be improved also 由于传统pwm硬开关电路的局限性,本文采用一种双零谐振型软开关技术降低开关损耗以及在高频情况下提高整机的可靠性。
Schottly barrier diode can be used as rectifying and continuous - flow unit in high frequency rectifying , switching and holding circuit , yet reducing the power consumption and circuit noise , enhancing the circuit efficiency and operation frequency 肖特基二极管在高频整流、开关电路和保护电路中作为整流和续流元件,可以大幅度降低功耗,提高电路效率和使用频率,减少电路噪声。