Table 2: List the AC input operating frequency range. The power shall work normally and meet all electrical requirements throughout this range.
表格2：列举AC输入频率范围，在此频率范围内，电源应正常工作并符合所有电气性能要求。
Sometimes a lot - for instance, you might see an impedance result of anywhere from one to as much as 50 ohms from a particular speaker design within it's normal operating frequency range.
有时这种变化的幅度会非常大，例如，你可能会观察到一个扬声器在普通的工作频率范围内其阻抗可能是从1欧姆到50欧姆之间的任何一个数值。
Sometimes a lot - for instance, you might see an impedance result of anywhere from one to as much as 50 ohms from a particular speaker design within it's normal operating frequency range.
有时这种变化的幅度会非常大，例如，你可能会观察到一个扬声器在普通的工作频率范围内其阻抗可能是从1欧姆到50欧姆之间的任何一个数值。
应用推荐