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... 联型多电平变频器的改进PwM调制策略，阐述该策的原理 ... 型多电平变频器采用若干低压PwM功率单元相串联的方式来实现 ...
本文主要阐述了一种基于PWM控制、应用于直流及步进 ... 电流取样电路四个功能模块及PWM速度反馈控制应用电路，这是 ...
介绍了单相PWM整流电路的原理及其工作模式， ... 验证了它们的可行性。Single-phase PWM rectifier circuit principle and working mode are introduced ...
... ,提出了在高品质因数下,基于PWM技术的陀螺自激驱动控制方案 ... gyroscope self-oscillation driving control scheme based on PWM technology is proposed under the condition of high ...
以单相PWM整流器工作原理为基础,推导了等 ... parameters of proportionable prototype based on single-phase PWM rectifier were proposed.Combined with a practical ...
本文中提出了一种用于于PwM模式的电源控制器中的误差放大器双极电路设计，该误差放大电路各个电参数指标如共模抑制比，开环增益，增益带宽，电源电压抑制比等都符合设计要求。此误差放大器目前已经应用在实际PWM电源控制器中。
... 精度的占空比可调的PWM波,再经光耦隔离后送入 ... control P89LPC901 to generate the variable duty cycle PWM wave for 12-bit accuracy.The digital waveforms ...
介绍了基于PWM波的4-20mA信号的转换原理, ... of 4- 20mA signal converter,transformed from the PWM. On this principle,the paper proposed the circuit ...
... 性能参数，提出了一种基于PWM控制方式，采用IGBT和单片机控制 ... piezoelectric actuator was advanced, which was based on PWM control and adopted IGBT and singlechip. The particular ...
... 桥超声发射电路，该电路由PWM电路、H桥功率放大电路、 ... width modulation is designed, which is composed of PWM circuit, H bridge power amplifier circuit and low ...
