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公开(公告)号：US20220302911A1
公开(公告)日：2022-09-22
申请号：US17836419
申请日：2022-06-09
Inventor： Xiangye WEI , Liming XIU , Yuhai MA
IPC: H03K5/1252 , G06F1/04 , H03K5/00
Abstract: A clock spread spectrum circuit, an electronic equipment, and a clock spread spectrum method are disclosed. The clock spread spectrum circuit (10) includes a control circuit (11) and a signal generation circuit (12). The control circuit (11) is configured to generate a frequency control word according to a modulation parameter, and the frequency control word changes discretely with time; and the signal generation circuit (12) is configured to receive the frequency control word and generate and output a spread spectrum output signal that is spectrum-spread according to the frequency control word, and the spread spectrum output signal corresponds to the frequency control word.
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公开(公告)号：US20220311428A1
公开(公告)日：2022-09-29
申请号：US17837214
申请日：2022-06-10
Inventor： Xiangye WEI , Liming XIU , Yuhai MA
Abstract: A clock spread spectrum circuit, an electronic equipment, and a clock spread spectrum method are disclosed. The clock spread spectrum circuit includes a control circuit, a signal generation circuit, and a duty cycle adjustment circuit. The duty cycle adjustment circuit is configured to generate a target voltage having a duty cycle that is equal to a target duty cycle, the control circuit is configured to generate a frequency control word according to a modulation parameter, and the frequency control word changes discretely with time; and the signal generation circuit is configured to receive the target voltage and the frequency control word and generate and output a spread spectrum output signal that is spectrum-spread according to the target voltage and the frequency control word, and the spread spectrum output signal corresponds to the frequency control word and a duty cycle of the spread spectrum output signal is the target duty cycle.
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公开(公告)号：US20210242874A1
公开(公告)日：2021-08-05
申请号：US16651511
申请日：2019-04-23
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Yuhai MA , Xiangye WEI , Liming XIU , Yiming BAI
Abstract: A parameter determination method for a spread spectrum circuit, a clock spread spectrum method, a parameter determination device for a spread spectrum circuit, and a clock spread spectrum device are disclosed. The parameter determination method for the spread spectrum circuit includes: obtaining a base time unit and a target frequency; determining a spread spectrum depth coefficient according to the base time unit and the target frequency; determining whether the spread spectrum depth coefficient is greater than or equal to a base spread spectrum depth coefficient; if yes, determining the spread spectrum depth coefficient as a standard spread spectrum depth coefficient and determining a standard frequency control word according to the standard spread spectrum depth coefficient; and if no, adjusting the base time unit until a corresponding spread spectrum depth coefficient corresponding to the base time unit is greater than or equal to the base spread spectrum depth coefficient.
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公开(公告)号：US20210159893A1
公开(公告)日：2021-05-27
申请号：US16980930
申请日：2019-04-23
Inventor： Xiangye WEI , Liming XIU , Yuhai MA
IPC: H03K5/1252 , H03K5/00 , G06F1/04
Abstract: A clock spread spectrum circuit, an electronic equipment, and a clock spread spectrum method are disclosed. The clock spread spectrum circuit includes a control circuit and a signal generation circuit. The control circuit is configured to generate a frequency control word according to a modulation parameter, and the frequency control word changes discretely with time; and the signal generation circuit is configured to receive the frequency control word and generate and output a spread spectrum output signal that is spectrum-spread according to the frequency control word, and the spread spectrum output signal corresponds to the frequency control word.
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