CONTROLLING SYSTEM WITH FIXED FREQUENCY DRIVER FOR CONTROLLING AN ELECTROCHROMIC ELEMENT AND METHOD FOR THE SAME
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United States of America Patent
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Oct 11, 2005
Grant Date -
Oct 13, 2005
app pub date -
Mar 31, 2004
filing date -
Mar 31, 2004
priority date (Note) -
Granted
status (Latency Note)
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Abstract
A controlling system and method for controlling an electrochromic element, utilizes a simplified architecture, including at least a microcontroller, a A/D converter and a charging circuit, to reduce complexity of the whole system for reaching both of a respond time and cost savings for the electrochromic element. And the controlling system and method only utilizes a fixed frequency to drive the electrochromic element for reaching a better reliability than a variable duty cycle driver used in prior art.
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