Advanced Analog Technology, Inc.

Chih Yueh Yen

A control circuit comprises a PWM control circuit and a PWM skip control circuit. The PWM control circuit controls a switching circuit. The switching circuit acts as a current source for an output circuit and a load circuit. The PWM skip control circuit controls the operation of the PWM control circuit. When the output current of the switching circuit is below a predetermined threshold, the PWM skip control circuit stops the operation of the PWM control circuit. When the output voltage of the switching circuit is below a predetermined threshold, the PWM skip control circuit resumes the operation of the PWM control circuit.

Switching voltage regulator, control circuit and method thereof

A slope rate compensation circuit includes a source follower level-shift amplifier, a capacitor, a first resistor and a second resistor. The source follower level-shift amplifier includes a first transistor and a second transistor. The first transistor allows a first current to flow therein, the second transistor allows a second current to flow therein, and the first current increases with the second current. The capacitor is connected to the source terminal of the first transistor. The first resistor is connected to the source terminal of the second transistor. The second resistor allows a third current to flow therein, and the third current increases with the second current. The second resistor is related to the output voltage of the slope rate compensation circuit.

Growing community of inventors

Hsinchu, Taiwan

Chih Yueh Yen