Miscellaneous active electrical nonlinear devices – circuits – and – Signal converting – shaping – or generating – Clock or pulse waveform generating
Reexamination Certificate
2011-08-02
2011-08-02
Luu, An T (Department: 2816)
Miscellaneous active electrical nonlinear devices, circuits, and
Signal converting, shaping, or generating
Clock or pulse waveform generating
C327S172000, C327S297000
Reexamination Certificate
active
07990200
ABSTRACT:
A PWM control system includes a multi-phase PWM controller and at least one single-phase PWM controller. The multi-phase PWM controller is capable of generating a multi-phase PWM signal. The at least one single-phase PWM controller is capable of generating a single-phase PWM signal. A phase difference between the single-phase PWM signal and the multi-phase signal is greater than 0 degree and less than 180 degree.
REFERENCES:
patent: 7230219 (2007-06-01), Miyazaki et al.
patent: 2010/0268969 (2010-10-01), Rui
Chen Shi-Tao
Huang Sheng-Chung
Hung Hsiang-Jui
Li Yi-Ping
Wu Kun-Lung
Hon Hai Precision Industry Co. Ltd.
Hong Fu Jin Precision Industry ( ShenZhen) Co., Ltd.
Luu An T
Niranjan Frank R.
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