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About information presented in this cross reference

The information presented in this cross reference is based on TOSHIBA's selection criteria and should be treated as a suggestion only. Please carefully review the latest versions of all relevant information on the TOSHIBA products, including without limitation data sheets and validate all operating parameters of the TOSHIBA products to ensure that the suggested TOSHIBA products are truly compatible with your design and application.
Please note that this cross reference is based on TOSHIBA's estimate of compatibility with other manufacturers' products, based on other manufacturers' published data, at the time the data was collected.
TOSHIBA is not responsible for any incorrect or incomplete information. Information is subject to change at any time without notice.

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什么是PWM?

什么是PWM?

PWM(脉冲宽度调制)用于控制电机线圈内的电力。
通过反复打开和关闭输出来控制输出功率。
恒定电压下,以恒定的脉冲周期运行电机。
电机线圈中产生的电压取决于电压脉冲的宽度。
它利用了半导体的特性,即开关状态的损耗最小,而中间状态的损耗最大。
由于PWM控制具有优异的可控性和较高的效率,在逆变电路中得到了广泛的应用。
此外,它也用于控制直流有刷电机。
在逆变电路中,通过周期性地改变PWM控制的打开状态(占空比),可以产生最适合驱动电机的正弦波交流电压。

第Ⅲ章:无刷电机的技术说明

无刷电机的技术说明
什么是逆变器?
什么是驱动IC?
通过霍尔传感器进行位置检测
通过感应电压进行位置检测
什么是方波驱动?
什么是正弦波驱动?
在新窗口打开