Control circuit for switching voltage regulator

A control circuit for controlling a switching voltage regulator, comprising:

• a current generating circuit, for generating a reference current according to the input voltage and the output voltage of the switching voltage regulator;
• a charging circuit, for generating a charging current to charge a capacitor according to the reference current;
• a discharging circuit, for discharging the capacitor;
• and
• a comparator, for comparing the voltage of the capacitor with a reference voltage for providing a control signal to configure the switching voltage regulator.

A control circuit for controlling a switching voltage regulator, comprising:

• a charging circuit, for generating a charging current according to an input voltage and an output voltage of the switching voltage regulator for charging a capacitor;
• a discharging circuit, for generating a discharging current according to the output voltage of the switching voltage regulator to discharge the capacitor;
• and
• a charging-discharging control circuit, for controlling the charging circuit, the discharging circuit, and the switching voltage regulator according to the voltage of the capacitor for providing a control signal to configure the switching voltage regulator.