Circuit and method for pulse width modulation by means of...

Modulators – Pulse or interrupted continuous wave modulator – Pulse width modulator

Reexamination Certificate

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C332S106000, C332S108000

Reexamination Certificate

active

07486155

ABSTRACT:
A pulse width modulator circuit has two self-oscillating pulse width modulators and a synchronization circuit for synchronizing the two self-oscillating pulse width modulators. It also comprises an auxiliary-signal generating circuit for generating an auxiliary signal which is coupled into the two self-oscillating pulse width modulators.

REFERENCES:
patent: 6023178 (2000-02-01), Shioya et al.
patent: 6297692 (2001-10-01), Nielsen
patent: 7119629 (2006-10-01), Nielsen et al.
patent: 697 26 592 (2004-11-01), None
patent: WO 03/055060 (2003-07-01), None

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