Power Management Reset Terminal State Check

The patent applies preliminary action by checking the reset terminal state during the power-on process before any malfunction is deliberately generated. The check unit detects whether the reset terminal is in a normal high-impedance state or an abnormal low-impedance state during initialization, allowing the system to verify reset function integrity without waiting for a deliberate malfunction event. This preliminary check eliminates the need to wait for a deliberate malfunction and subsequent recovery, significantly reducing activation time while ensuring reset function reliability.

The patent implements feedback by continuously monitoring the reset terminal state and using this information to control system activation. The check unit provides real-time feedback on the reset terminal impedance state, and the control unit responds by either proceeding with activation or triggering a fault indication. This feedback mechanism ensures that fault detection accuracy is maintained while enabling the system to activate promptly when the reset terminal is in a normal state, thus resolving the contradiction between speed and accuracy.

The patent applies preliminary action by performing the reset terminal state check during the power-on initialization phase, before the controller begins normal operation. By checking the impedance state of the reset terminal at this early stage, the system can reliably distinguish between a genuine fault (low impedance during power-on) and normal operation (high impedance during power-on). This timing-based discrimination simplifies the logic compared to continuous monitoring, as the expected state is known a priori based on the power-on timing.