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21ic
19 天
PWM控制的基本原理 PWM控制的工作方式
[导读]PWM控制的基本原理可以概括为:通过对逆变电路开关器件的通断进行控制,使输出端得到一系列幅值相等的脉冲,用这些脉冲来代替所需要的波形(如正弦波)。 PWM(Pulse Width Modulation),即脉冲宽度调制,是一种广泛应用于电子控制领域的调制技术。它通过 ...
Jornal Capital
14 天
Balcão de Emprego
Confira as vagas de emprego disponíveis no SINE-Sinop para esta segunda-feira, 21 de Outubro de 2024. As vagas são rotativas, ou seja, são disponibilizadas para o dia, podendo não estar mais ...
eeworld.com.cn
4 天
无叶风扇台灯
风扇电路的原理图如图6所示,通过降压模块产生12V直流电源为无刷电机供电,最大输出功率可达20W,无刷电机连接电调,并采用PWM信号进行控制。 图6 风扇电路原理图 主控板PCB的仿真图和实物图分别如图7(a)和图7(b)所示,控制板左侧为风扇电路,右侧 ...
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