高通平台PWM calculation PWM duty cycle =A/B, where: A = PWM value in decimal B = 2^ (PWM_SIZE) PWM frequency = (master clock frequency )/ (B*C*D) , where: Master clock frequency = 1.024 kHz, 32.764 kHz, 19.2 MHz, or off C = Divide ratio (1, 3, ...
(period) › An overflow of timer T12 triggers the second interrupt (CCU6_period_match_isr()) which is used for counting: – the overflows between two rising edges for PWM frequency calculation – the overflows between the rising edge and the falling edge for PWM duty cycle calculati...
优化开关序列的PWM整流器模型预测控制策略 有限集模型预测控制(FCS-MPC)策略通过在一个采样周期内对有限开关状态遍历寻优,得到当前周期的最优开关状态作用于系统。但由于开关频率不固定,造成系统谐波频谱分散,增加了滤波器设计难度。该文以三相电压源型PWM整流器为研究对象,在分析模型预测控制原理的基础上,提出一种基于...
[15] Yue Shuaichao, Yang Qingxin, Li Yongjian, et al. Core loss calculation of the soft ferrite cores in high frequency transformer under non-sinusoidal excita- tions[C]//2017 20th Inter- national Conference on Electrical Machines and Systems, Sydney, NSW, Australia, 2017: 1-5. [16] Barg...
Frequency Range Mounting active and preferred Buy Online PG-DSO-8 2.5 mA Current Mode PWM 100 kHz (fixed) 150 µA SMT DSO-8 active and preferred Buy Online PG-DSO-8 2.5 mA Current Mode PWM 65kHZ (fixed) 150 µA SMT active and preferred ...
As per TRM, I should be able to divide frequency up to 254(using Prescaler), but in firmware, I am able to divide it with only 16(InternalPs, InternalPsAlternate ). To calculate generated PWM frequency I am using the below calculation EMIO_CLOCK OneTick = 1/EMIO_CLOCK up_time = ...
零空间矢量和PWM 开关频率对异步电机噪声的影响
2-55 Introduction PWM控制的思想源于通信技术，全控型器件的发展使得实 现PWM控制变得十分容易。PWM技术的应用十分广泛，它使电力电子装置的性能大大提高，因此它在电力电子技术的发展史上占有十分重要的 地位。PWM控制技术正是有赖于在逆变电路中的成功应用，才确定了它在电力电子技术中的重要地位。现在使用的各种逆...
In the case of an external master bus, when calculating the frequency and period of a PWM signal, the period of the master bus, the clock divider and respectively the master bus prescalers are also included. Conversely, these things do not apply to the use of an internal counter. The ...
the carrier frequency is optimized at different speed ranges. Moreover, based on the calculation of carrier period angle, a phase angle compensation algorithm of the voltage vector is proposed to avoid the current shock when the modulation mode is switched. By accurately analyzing the impact of ch...