Patent ID: 11894773
Assignee: SPREADTRUM COMMUNICATIONS (SHANGHAI) CO., LTD.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H | IPC H

Claim 8:
9. A buck-boost circuit, comprising a first switch, a second switch, a third switch, a fourth switch, a sixth switch, a first inductor, a first capacitor, and a second capacitor,
wherein a first terminal of the first switch is connected to an anode of an input power supply; a first terminal of the second switch is connected to the anode of the input power supply; a first terminal of the third switch and a first terminal of the first capacitor are connected to a second terminal of the first switch; a second terminal of the third switch is connected to a cathode of the input power supply; a first terminal of the fourth switch, a second terminal of the first capacitor, and a first terminal of the first inductor are connected to a second terminal of the second switch; a second terminal of the fourth switch is connected to the cathode of the input power supply; a second terminal of the first inductor is connected to an anode of an output power supply; the second capacitor is connected in parallel between the anode and a cathode of the output power supply; and the sixth switch is connected in parallel with the first capacitor.