Controlling system with fixed frequency driver for...

Details Controlling system with fixed frequency driver for... Controlling system with fixed frequency driver for...

2005-10-11

2005-10-11

Dang, Hung Xuan (Department: 2873)

Optical: systems and elements

Optical modulator

Light wave temporal modulation

C359S267000

Reexamination Certificate

active

06954299

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.

REFERENCES:
patent: 6501457 (2002-12-01), Bruechmann et al.

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