Patent ID: 9735680
Date: 2017-08-15
CPC Classifications: G01R,H02M

Claim:
1. A constant on-time pulse width control-based apparatus capable of detecting a transient event of a voltage converter, comprising: a specific comparator configured for generating a logic control signal to a logic circuit according to two resultant signals of a controller; the logic circuit, coupled to the specific comparator, configured for generating a pulse control signal with an on-time pulse width to charge an output capacitor of an output stage circuit of the voltage converter according to the logic control signal; and the controller, coupled to the specific comparator and the logic circuit, configured for generating the two resultant signals to the specific comparator by generating a voltage ramp signal and amplifying an output voltage ripple signal based on a reference voltage, and configured for detecting the transient event and adaptively adjusting the on-time pulse width of the pulse control signal according to the amplified output voltage ripple signal; wherein the controller comprises: