Apparatus for providing a sinusoidally amplitude-modulated...

Details Apparatus for providing a sinusoidally amplitude-modulated... Apparatus for providing a sinusoidally amplitude-modulated...

2008-06-17

2008-06-17

Vo, Tuyet (Department: 2821)

Electric lamp and discharge devices: systems

Periodic switch in the supply circuit

Silicon controlled rectifier ignition

C315S219000, C315S224000, C315S225000

Reexamination Certificate

active

07388335

ABSTRACT:
In the case of an apparatus for providing a sinusoidally amplitude-modulated operating voltage, two switches are arranged in the form of a half bridge, and an LC element is arranged downstream of the half bridge. The first switch is driven by a first square-wave signal in a clocking with the amplitude modulation frequency per clock cycle, and the second switch (QLOW) is driven by a second square-wave signal, which is shorter than the first signal, with a temporal offset with respect to the first signal in each clock cycle. The LC element (LMOD, CMOD) acts as a filter for the signal resulting from the driving of the switches at a connection point (K) between the switches and allows a DC voltage component and a sinusoidal component of the signal with the fundamental frequency of the clocking to pass through, but substantially filters out harmonics.

REFERENCES:
patent: 5952794 (1999-09-01), Bergman et al.
patent: 2002/0113557 (2002-08-01), Langeslag et al.
patent: 2003/0193302 (2003-10-01), Huber et al.
patent: 102 16 596 (2003-11-01), None

Affiliated with

Also associated with

Rating

Apparatus for providing a sinusoidally amplitude-modulated... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Apparatus for providing a sinusoidally amplitude-modulated..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus for providing a sinusoidally amplitude-modulated... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2799880