Patent ID: 11894762
Assignee: HUAWEI DIGITAL POWER TECHNOLOGIES CO., LTD.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H | IPC H

Claim 6:
7. The direct current-direct current conversion circuit according to claim 5, wherein the capacitance balance circuit comprises a third branch, a fourth branch, and a fifth branch, wherein
the third branch comprises a ninth diode, an eighth diode, a sixth switch, and a fifth switch that are sequentially connected in series, wherein a negative electrode of the ninth diode is connected to the negative electrode of the second diode, a positive electrode of the ninth diode is connected to a negative electrode of the eighth diode, a first terminal of the fifth switch is connected to the sixth switch, and a second terminal of the fifth switch is connected to the negative electrode of the power supply;
a first terminal of the fourth branch is connected between the first capacitor and the second capacitor, and a second terminal of the fourth branch is connected between the eighth diode and the sixth switch;
a first terminal of the fifth branch is connected between the eighth diode and the ninth diode, and a second terminal of the fifth branch is connected between the sixth switch and the fifth switch;
a fifth capacitor is connected in series in the fifth branch; and
a third inductor is connected in series in the fifth branch or the fourth branch.