DC-DC conduction time control circuit applied to energy collection

The invention relates to the technical field of energy collection, and discloses a DC-DC conduction time control circuit applied to energy collection, which completes the self-adaptive switching of a conduction time control method by converting an input voltage from a voltage domain to a time domain and comparing the constant conduction time with the self-adaptive conduction time. Through adaptive switching, the problems caused by low maximum power tracking efficiency of an adaptive conduction time control method under low input voltage and low efficiency of DC-DC of a constant conduction time control method under high input voltage are avoided, and the overall efficiency of DC-DC in the whole input voltage range is improved. And the enabling control logic circuit is added, so that the voltage-to-current circuit with enabling control can be closed or opened according to the self-adaptive switching state of the circuit, and the power consumption is saved. 本发明涉及能量收集技术领域，公开了一种应用于能量收集的DC-DC导通时间控制电路，通过将输入电压从电压域转换到