Title:
PWM WAVEFORM GENERATION DEVICE AND METHOD
Document Type and Number:
WIPO Patent Application WO/2019/137040
Kind Code:
A1
Abstract:
Provided in the present invention is a pulse-width modulation (PWM) waveform generation device, belonging to the technical field of PWM signal generation; the device comprises: a time division multiplexing module, the time division multiplexing module being used for receiving a first pre-processed signal and second pre-processed signal outputted by two system clock sources; and according to a preset strategy, performing first time division processing on the first pre-processed signal to obtain a first time-division signal, performing second time division processing on the second pre-processed signal to obtain a second time-division signal, and multiplexing the first time-division signal and the second time-division signal to obtain a PWM output signal respectively, wherein the output frequency of the PWM output signal is a preset standard clock frequency. The beneficial effects of the present invention are that: the cycle amplitude of one cycle of the PWM waveform is determined by cycles and numbers of cycles of two pre-processed waveforms, and the outputted waveform frequency may therefore be calibrated to a desired frequency.
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Inventors:
HU JIAN (CN)
YANG BO (CN)
ZHANG XUHUA (CN)
LUO CHAOYANG (CN)
CHEN XINGYU (CN)
YANG BO (CN)
ZHANG XUHUA (CN)
LUO CHAOYANG (CN)
CHEN XINGYU (CN)
Application Number:
PCT/CN2018/108105
Publication Date:
July 18, 2019
Filing Date:
September 27, 2018
Export Citation:
Assignee:
AMLOGIC SHANGHAI CO LTD (CN)
International Classes:
H03K7/08
Foreign References:
| CN108347235A | 2018-07-31 | |||
| CN105375907A | 2016-03-02 | |||
| JP2008263727A | 2008-10-30 |
Attorney, Agent or Firm:
SHANGHAI SHENXIN LAW FIRM (CN)
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