Flash Memory Power Circuit Voltage Drop Discharge

The patent applies preliminary action by providing a discharging unit that is prepared in advance and can immediately discharge the output side capacitor when voltage drops below the setting value. This pre-configured discharge mechanism ensures that the capacitor voltage is lowered within a specified time without waiting for the voltage regulation circuit to naturally discharge, thus resolving the time loss problem while maintaining stable operation during normal operation.

The patent implements feedback by using a detection unit that continuously monitors the input voltage and charging voltage of the output side capacitor. When the voltage drops below the setting value, the detection unit triggers the discharging unit to discharge the capacitor, and this process is repeated until the voltage reaches a safe level. This feedback mechanism prevents system failure by ensuring timely discharge while maintaining operating voltage stability during normal operation.

The patent merges the discharging function with the existing voltage regulation circuit by integrating the discharging unit and detection unit into the same circuit architecture. The discharging unit shares the voltage regulation circuit's components and control logic, allowing the circuit to perform both voltage regulation and discharge functions without adding excessive complexity. This merged design ensures system failure prevention while keeping the overall circuit structure relatively simple.