In this paper, an improved Phase-shift ( PS) Full-Bridge ( FB) Zero-Voltage-Switching ( ZVS) circuit which is used in the inverter welding power supply is proposed. 全桥移相式零电压软开关逆变弧焊电源在轻载和空载时难以实现零电压开关。
Study of phase-shift full-bridge zero-voltage soft switch resonant circuit 移相全桥零电压软开关谐振电路研究
It is found that the voltage stability of the phase-shift capacitor is a key factor in the chaotic circuit. 实验发现相移电容的电压稳定性是实验的关键。
The presently used method of transforming single phase into 3 phases is the RC phase-shift circuit but its design is so unreasonable that it is severely restricted in practical applications. 单相转换为三相的移相电路基本上是采用RC移相电路由于电路设计和处理上的不合理,致使其在实际应用方面受到很大限制。
Study and application of IGBT phase-shift switching circuit IGBT移相开关电路的研究与应用
Temperature introduced phase-shift of a 10Gb/ s lumped timing recovery circuit based on dielectric resonator filter, in addition to two improved versions, are experimentally observed. 介绍了分离结构的10Gb/s介质谐振器滤波器时钟恢复电路和两种改进方案的输出时神相住温度漂移现象的实验观测结果。
Experimental results have shown that a digital phase-shift trigger circuit controlled directly bya microcomputer is wide-ranged in phase-shift, and is simple, reliable and convenient. 实验证明由微机数据总线直接控制的全数字化移相触发电路,具有移相范围宽、线路简单、控制方便、运行可靠等优点。
In the third chapter, the specific control circuits including phase-shift control, start-up control, protection circuit and IGBT driver circuit are proposed. 本文第三章给出该变换器的控制电路的具体设计方法,其中包括相移控制、启动控制、电路保护控制和IGBT驱动电路控制。
This paper describes the principle of Phase-Shift SPWM designed by Direct Digital Frequency Synthesis ( DDS) based on FPGA implemented. It realizes full digital control for control circuit of Multilevel converter and amends the way of traditional SPWM design. 本文阐述通过直接数字频率合成技术(DDS)用FPGA设计三角载波移相PWM波形的原理和要点,使多电平逆变器控制电路实现全数字化控制,改进了传统设计三角载波移相PWM的方法。
An applicable phase-shift control interface circuit is designed, analyzed and tested. 设计出励磁系统移相控制接口电路,并进行了分析和试验。
The 8098 monolithic computer has the particular property to realize A/ D, D/ A and the pwm signal output with the use of software in the analog phase-shift circuit, showing an effective approach to changing it to have the property of the intelligence. 将8098单片机所特有的用软件来实现A/D,D/A及PWM信号输出的特性应用在模拟式移相电路中,展示了模拟式移相电路改造成具有智能化特点的一条有效途径。
The topology of phase-shift full-bridge ZVZCS PWM converter with saturable inductor is chosen as main circuit. The thesis designs the main circuit combining the conditions to achieve soft-switching, and gives the design principles. 接着以由饱和电感实现滞后臂ZCS的移相全桥ZVZCSPWM变换器拓扑为主电路,结合ZVZCS实现条件进行了主电路设计,给出了设计原则。
On the basis of this stable speed control proposal, make analysis and select key components, complete network circuit correction, phase-shift circuit and power amplifier circuit design. 以该稳速控制方案为基础,分析并选择了关键元部件,完成了校正网络电路、移项电路及功放电路的设计。
The main charging circuit was designed to be phase-shifted full bridge ZVS ( zero voltage switching) converter circuit. The phase-shift PWM control mode is studied, and the results were analyzed with the Matlab simulation, and a balanced-charge circuit was proposed. 利用移相全桥ZVS(零电压开关)变换器电路设计出充电器的主电路,研究了移相PWM控制模式,将结果进行了分析与Matlab仿真验证,并提出有效的均衡充电设计方案。
Then the micro-step phase shifter is introduced in terms of electronic circuit design, software development and data processing methods. The electronic circuits mainly includes MCU control circuit, DDS phase-shift circuit, CPLD partial frequency division phase-measuring circuit, output circuit, power source circuit. 接着重点介绍了微步移相器的硬件电路设计、软件开发过程和数据处理方法,系统硬件电路主要包括:MCU控制电路、DDS移相电路、CPLD部分分频测相电路、输出电路、电源电路等。
This paper presents a fast phase-shift circuit which can achieve precise 180 ° phase shift and the master and slave converters can work ideally under CRM. 本文介绍了一种快速的移相电路的设计,此电路可以实现精确地180°相移,且主从变换器都工作于理想的电流临界续断模式。
Based on this analysis, the H bridge phase-shift PWM driving circuit is designed to weaken the control nonlinearity caused by driving circuit. 基于上述电路非线性分析,设计了H桥相移PWM驱动电路以减弱电路导致的控制非线性。