主权项 |
1. A voltage converter, comprising:
a constant on time signal generator, for generating a first driving signal and a second driving signal; a first transistor, comprising a first end for receiving a power supply voltage, a second end coupled to a phase end of the voltage converter, and a control end for receiving the first driving signal; a second transistor, comprising a first end coupled to the phase end, a second end coupled to a reference ground voltage, and a control end for receiving the second driving signal; an inductor, connected in series between the phase end and an output end of the voltage converter, an output signal being generated at the output end of the voltage converter; a feedback circuit, for dividing the output signal to generate a feedback signal at a feedback end of the voltage converter; and a ripple injection circuit, coupled to the feedback end and the phase end, and for getting the voltage of the feedback end and the voltage of the phase end to generate a injection signal, wherein the constant on time signal generator generates the first and the second driving signals according to the injection signal, the output signal and a reference signal. |