搜索 - 科创

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引用第18楼hamdad于2009-06-13 23:12发表的 :脉冲输入功率的情况下，I*I*t的数值，决定了灯丝不烧毁的情况下的极限承受能力，由于灯丝的热惰性，当通电的时间足够短，单脉冲能量值...

公路自行车爱好者们可以以36km/h巡航。假设人车总重70公斤，从静止加速到36km/h需要耗费3500J。而保持36的速度，所需功率为220瓦。于是，完成一次制动所耗费的能量，最多为正常骑行16秒所...

小功率遥控车/船/飞机可以参考我这块小板：使用3片DRV8837，可提供两个电机正反转驱动，PWM无级调速，做船和飞机都省掉“昂贵”的舵机，做坦克挖掘机原地转弯也很爽……还有1路可以用来执行一些强...

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