Systems and methods for operating one or more electrically controllable privacy glazing structures

A method for electrically controlling a privacy glazing structure comprising:

• applying an electrical drive signal to a privacy glazing structure by a driver, the electrical drive signal having a first drive parameter and the first drive parameter having a first value;
• applying an electrical sensing pulse to the privacy glazing structure by the driver and measuring an electrical response of the privacy glazing structure in response to the electrical sensing pulse, wherein applying the electrical sensing pulse to the privacy glazing structure comprises applying a plurality of electrical sensing pulses to the privacy glazing structure over a period of time and measuring the electrical response of the privacy glazing structure in response to each of the electrical sensing pulses;
• characterizing one or more parameters of the privacy glazing structure based on the measured response to the electrical sensing pulse, wherein characterizing the one or more parameters of the privacy glazing structure based on the measured response to the electrical sensing pulse comprises characterizing the one or more parameters of the privacy glazing structure based on the measured response to each of the plurality of electrical sensing pulse;
• determining if the one or more parameters characterized in response to the electrical sensing pulse are different from a corresponding one or more parameters characterized at a previous time by more than a threshold amount;
• if the one or more parameters characterized in response to the electrical sensing pulse are different from the corresponding one or more parameters characterized at the previous time by more than the threshold amount, adjusting the first drive parameter to a second value different value than the first value;
• determining a trend of the one or more characterized parameters over time;
• and
• establishing a schedule for automatically changing the value of the first drive parameter over time based on the determined trend.