Drive circuit for an electro-optic rearview mirror system

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United States of America Patent

PATENT NO 9908474
SERIAL NO

14163470

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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An electro-optic rearview mirror system is provided. The electro-optic rearview mirror system includes an inside electro-optic rearview mirror element and an outside electro-optic rearview mirror element in series with the inside electro-optic rearview mirror element. A drive circuit is in electrical communication with the inside electro-optic rearview mirror element and the outside electro-optic rearview mirror element and includes a first power operational amplifier and a second power operational amplifier, both of which are configured as voltage followers. The drive circuit is configured to apply overvoltage to the inside electro-optic rearview mirror element if the outside electro-optic rearview mirror element is shorted.

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Patent Owner(s)

  • GENTEX CORPORATION

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Poe, G Bruce Hamilton, US 36 5049
Turnbull, Robert R Holland, US 124 11231

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