Motor drive circuit with reduced coil crosstalk in a...

Details Motor drive circuit with reduced coil crosstalk in a... Motor drive circuit with reduced coil crosstalk in a...

2006-10-24

2006-10-24

Phan, James (Department: 2872)

Optical: systems and elements

Deflection using a moving element

Using a periodically moving element

C359S213100

Reexamination Certificate

active

07126734

ABSTRACT:
Crosstalk between a drive coil and a feedback coil is eliminated by a motor drive circuit operative for generating the drive coil as a square wave, and by removing the crosstalk which occurs at zero transitions of a feedback signal. The drive coil is used to oscillate a scan mirror employed in an image projection arrangement or an electro-optical reader.

REFERENCES:
patent: 4160913 (1979-07-01), Brenholdt
patent: 2006/0065735 (2006-03-01), Li et al.

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