Switching circuit
AssigneeRealtek Semiconductor Corp.
InventorShih-Hsiung Huang
Life of this patent
Estimating the term…
Abstract
A switching circuit receives an input voltage and outputs an output voltage, and includes a first switched-capacitor circuit, a second switched-capacitor circuit, and a switch. The first switched-capacitor circuit is configured to receive the input voltage to generate an intermediate voltage. The second switched-capacitor circuit is coupled to the first switched-capacitor circuit and is configured to receive the intermediate voltage to generate the output voltage. One terminal of the switch receives the input voltage, and another terminal of the switch is coupled to the second switched-capacitor circuit.
Claims15
A switching circuit configured to receive an input voltage and output an output voltage, comprising:
- a first switched-capacitor circuit configured to receive the input voltage to generate an intermediate voltage;
- a second switched-capacitor circuit coupled to the first switched-capacitor circuit and configured to receive the intermediate voltage to generate the output voltage;
- and
- a switch, wherein one terminal of the switch receives the input voltage, and another terminal of the switch is coupled to the second switched-capacitor circuit;
- wherein the second switched-capacitor circuit comprises a capacitor, and the switch is electrically connected to the capacitor:
- wherein the second switched-capacitor circuit is controlled by a first clock, the second switched-capacitor circuit is turned on when the first clock is at a first level, the switch is controlled by a second clock, the switch is turned on when the second clock is at the first level, and the second clock is at the first level for a period of time after the first clock transitions from a second level to the first level.
A switching circuit configured to receive an input voltage and output an output voltage, comprising:
- a first switched-capacitor circuit configured to receive the input voltage to generate an intermediate voltage;
- a second switched-capacitor circuit coupled to the first switched-capacitor circuit and configured to receive the intermediate voltage to generate the output voltage;
- and
- a switch, wherein one terminal of the switch receives the input voltage, and another terminal of the switch is coupled to the second switched-capacitor circuit;
- wherein the second switched-capacitor circuit comprises a capacitor, and the switch is electrically connected to the capacitor;
- wherein the second switched-capacitor circuit and the switch are controlled by a clock, the second switched-capacitor circuit and the switch are turned on when the clock is at a first level, and the second switched-capacitor circuit and the switch are turned off when the clock is at a second level;
- wherein when the second switched-capacitor circuit is turned on, the output voltage is substantially equal to the intermediate voltage.
A switching circuit configured to receive an input voltage and output an output voltage, comprising:
- a first switched-capacitor circuit configured to receive the input voltage to generate an intermediate voltage;
- a second switched-capacitor circuit coupled to the first switched-capacitor circuit and configured to receive the intermediate voltage to generate the output voltage;
- and
- a switch, wherein one terminal of the switch receives the input voltage, and another terminal of the switch is coupled to the second switched-capacitor circuit;
- wherein the second switched-capacitor circuit comprises a capacitor, and the switch is electrically connected to the capacitor;
- wherein the output voltage is a first output voltage, and the switch is a first switch, the switching circuit further comprising:
- a third switched-capacitor circuit coupled to the first switched-capacitor circuit and configured to receive the intermediate voltage to generate a second output voltage;
- and
- a second switch, wherein one terminal of the second switch receives the input voltage, and another terminal of the second switch is coupled to the third switched-capacitor circuit.
Dependencies are inferred from the claim text.