Switching Element Gate Timing Using Stored Delay Compensation

The patent applies preliminary action by storing the on-delay time and off-delay time from previous switching operations before they are needed. The delay time storage unit saves these timing characteristics in advance, allowing the driving signal generation to use pre-calculated delay values rather than waiting for feedback from the actual switching event. This enables high-speed switching elements to operate without waiting for feedback while still achieving voltage surge suppression through proactive timing adjustment.

The patent implements feedback by using the detected on-delay time and off-delay time from switching operations to adjust subsequent driving signals. The delay time storage unit retains this feedback information, and the driving signal generation uses it to modify gate voltage timing in real-time. This creates a closed-loop system where past switching performance informs future control actions, enabling continuous optimization of voltage surge suppression.

By storing delay times in advance before high-speed switching operations begin, the system prepares timing compensation data proactively. This allows the driving device to immediately apply appropriate delay adjustments when switching elements operate at high speeds, without waiting for feedback loops that would be too slow to prevent voltage surges during rapid switching transitions.

The patent makes the driving signal dynamically adaptive by continuously updating stored delay times based on actual switching performance. The system adjusts gate voltage timing in real-time according to varying operating conditions, allowing high-speed switching elements to maintain optimal performance across different load and temperature conditions while suppressing voltage surges through dynamic parameter adjustment.