Highly compatible power controller

A highly compatible power controller, comprising:

• a signal identification element comprising a high-frequency signal identifier, wherein the high-frequency signal identifier comprises a voltage divider, an inverter, a first comparator, a second comparator, a latch, and an AND gate, and configured to receive a first input signal;
• a switch driver connected to the high-frequency signal identifier;
• and
• a switch element connected to the switch driver;
• wherein the voltage divider is configured to divide the first input signal to generate a first divided-voltage signal, and the inverter is configured to perform noise suppression on the first divided-voltage signal to generate a second divided-voltage signal, wherein the first comparator is configured to compare the second divided-voltage signal with a first reference voltage and to generate a first comparison signal at a low level when the second divided-voltage signal is lower than the first reference voltage, wherein the second comparator is configured to compare the second divided-voltage signal with a second reference voltage and to generate a second comparison signal at a high level when the second divided-voltage signal is higher than the second reference voltage, wherein the latch is configured to generate a logic output signal at the high level according to the first comparison signal and the second comparison signal, and the AND gate is configured to generate a conduction signal when both the logic output signal and the second comparison signal are at the high level, and the switch driver is configured to activate the switch element according to the conduction signal.