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公开(公告)号:US20240364283A1
公开(公告)日:2024-10-31
申请号:US18758896
申请日:2024-06-28
Applicant: Huawei Technologies Co., Ltd.
Inventor: Wei Zhou , Yao Qian , Xiaojun Pan , Weinan Li
IPC: H03F3/24
CPC classification number: H03F3/245 , H03F2200/102 , H03F2200/451 , H03F2200/78
Abstract: A power amplifier power supply circuit includes a first power supply circuit and a second power supply circuit that are connected in parallel, where the first power supply circuit and the second power supply circuit jointly supply power to a power amplifier by using a power supply end of the power amplifier. The second power supply circuit is configured to adjust a power supply voltage of the power amplifier at a symbol level. Power supply voltages output by the second power supply circuit and the first power supply circuit change based on a change of an envelope signal output by the power amplifier.