The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 16, 2022
Filed:
May. 06, 2021
Naval University of Engineering, Wuhan, CN;
Jie Xu, Wuhan, CN;
Ziling Nie, Wuhan, CN;
Junjie Zhu, Wuhan, CN;
Tinghao Wu, Wuhan, CN;
Weiwei Ye, Wuhan, CN;
Yi Han, Wuhan, CN;
Xingfa Sun, Wuhan, CN;
Wenkai Xu, Wuhan, CN;
Jingxin Yuan, Wuhan, CN;
NAVAL UNIVERSITY OF ENGINEERING, Wuhan, CN;
Abstract
A multi-frequency uniformization carrier wave slope random distribution pulse width modulation method, includes: (1) selecting a required random carrier wave sequence and a modulating wave, and after the two are compared, generating a switch device drive signal for pulse width modulation; (2) determining a multiple n of an equivalent carrier frequency f of the random carrier wave sequence, and selecting a main circuit topology; and (3) inputting the switch device drive signal generated in (1) into the main circuit topology of (2) to perform multi-frequency uniformization carrier wave slope random distribution pulse width modulation. The disclosure can improve a frequency domain distribution bandwidth of a harmonic wave without changing the mean and variance of a random carrier wave sequence, and realizes uniform distribution of carrier waves and multiple harmonic peaks near a doubled frequency of the carrier waves in a wider frequency domain.