The Super Flower Leadex V Gold Pro 1000W Power Supply is currently available at a sale price of $99.99, reflecting a savings ...

Is that possible ? How does the device work? Is the current limitation working and does the device wake-up the MCU InRush-Current-limitation for first charging of SuperCaps via eFuse would be helpful.

PMOS作为 电源 开关可如下图所示，其导通时只需要VIN >= VG + Vth即可，因此，其不需要另一个电压来保持MOS管的打开状态，相比NMOS作为开关控制，其电路较为简单。