Conversion circuit

A conversion circuit, comprising:

• a main device comprising a first terminal, a second terminal and a control terminal;
• a trigger circuit comprising an output terminal and a sense terminal, wherein the sense terminal of the trigger circuit is electrically connected to the main device;
• and
• a voltage control switching circuit, comprising:
• a first terminal configured to receive an original signal;
• a second terminal connected to the control terminal of the main device, and configured to transmit a driving signal to drive the main device;
• and
• a control terminal connected to the second terminal of the main device and the output terminal of the trigger circuit, wherein the driving signal has a first voltage level generated by the voltage control switching circuit in response to a voltage level at the control terminal of the voltage control switching circuit;
• wherein the voltage control switching circuit further comprises:
• a voltage control switch comprising:
• a drain terminal coupled to the first terminal of the voltage control switching circuit;
• a source terminal coupled to the second terminal of the voltage control switching circuit;
• and
• a gate terminal coupled to the control terminal of the voltage control switching circuit.