Title:
POWER AMPLIFIER AND CHIP
Document Type and Number:
WIPO Patent Application WO/2024/093660
Kind Code:
A1
Abstract:
The present invention provides a power amplifier and a chip. The power amplifier comprises a power amplification module, the power amplification module comprising an H-bridge circuit sub-module, and the H-bridge circuit sub-module comprising a first half bridge and a second half bridge; and a signal compensation module, which is used for compensating for a first input signal and a second input signal so that in a single PWM period of the H-bridge circuit sub-module, an actual duty ratio of a high level outputted by both the first half bridge and the second half bridge is equal to an actual duty ratio of a low level outputted thereby. According to the present invention, the signal compensation module is arranged, and the signal compensation module is used for compensating for the first input signal and the second input signal, so that in the single PWM period of the H-bridge circuit sub-module, the actual duty ratio of the high level outputted by both the first half bridge and the second half bridge is equal to the actual duty ratio of the low level outputted thereby, and the symmetry of an output signal of the H-bridge circuit is ensured, thereby facilitating improvement of the accuracy of current detection of the H-bridge circuit.
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Inventors:
ZHANG MIAO (CN)
LI SHILIANG (CN)
KE YI (CN)
LI SHILIANG (CN)
KE YI (CN)
Application Number:
PCT/CN2023/124903
Publication Date:
May 10, 2024
Filing Date:
October 17, 2023
Export Citation:
Assignee:
WUHAN JUXIN MICRO ELECTRONICS CO LTD (CN)
International Classes:
H03F3/217; H02M7/219
Foreign References:
| CN106416060A | 2017-02-15 | |||
| CN107070423A | 2017-08-18 | |||
| CN109217644A | 2019-01-15 | |||
| US20200295723A1 | 2020-09-17 | |||
| US20110140774A1 | 2011-06-16 | |||
| US20200304081A1 | 2020-09-24 |
Attorney, Agent or Firm:
ZY PARTNERS (CN)
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