English: So, during the time when Q is on, during dT_(S), the diode was off, current was discharging.
Telugu: కాబట్టి, Q ఆన్‌లో ఉన్న సమయంలో, dT_(S) సమయంలో డయోడ్ ఆఫ్ చేయబడింది, కరెంట్ డిశ్చార్జ్ అవుతోంది.