The difference between a hard switching and quasi resonant flyback converter is the turn on time point of the primary switch.

硬开关和准谐振反激变换器之间的差异在于一次侧开关的开启时间点。

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Fast User Switching cannot be turned off at this time. Log off, log back on, and then turn off Fast User Switching.

快速用户切换此时无法关闭。注销，重新登录，然后关闭快速用户切换。

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Fast User Switching cannot be turned off at this time. Log off, log back on, and then turn off Fast User Switching.

快速用户切换此时无法关闭。注销，重新登录，然后关闭快速用户切换。

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