Constant on-time switching converter means

The present invention discloses a constant on-time switching converter apparatus comprising a transformer, the transformer having a primary side and the secondary side, an electronic switch connected to the primary side, the secondary side is connected to a load and a processor. The processor is connected to a drive located on the primary side via at least one coupling member, to thereby connect the electronic switch. Processor receives an output voltage or an output current on the load, thereby generating a control signal. Drive via a coupling element receiving the control signal, and accordingly switching the electronic switch to regulate the output voltage and control transformer output current time point to enhance the negative edge to positive edge length of time in which the switching state of the electronic switch by the control signal and the positive edge the decision to decrease the negative edge point in time, in order to achieve a high speed response to load transients.