发明名称 |
Method for control of electrochromic device |
摘要 |
A method for control of electrochromic devices is revealed. First a duty cycle of PWM is changed to a preset Q value according to a signal detected by a detector while the electrochromic device is switched to the colored state. The Q value represents electric charge that corresponds to colored-state transmittance. Then turn off the PWM. Thus the response time for coloration and the transmittance of the electrochromic device are maintained within a preset range, without being affected by ambient temperature, setting time and aging of the materials used. Thus the electrochromic device is more convenient to use and having more practical value. |
申请公布号 |
US9335602(B2) |
申请公布日期 |
2016.05.10 |
申请号 |
US201414340672 |
申请日期 |
2014.07.25 |
申请人 |
Tintable Kibing Co., Ltd. |
发明人 |
Chung Yi-Wen;Lai Chien-He |
分类号 |
G02F1/153;G02F1/15;G02F1/163;G02F1/155;C09K9/00;B60R1/08 |
主分类号 |
G02F1/153 |
代理机构 |
Rosenberg, Klein & Lee |
代理人 |
Rosenberg, Klein & Lee |
主权项 |
1. A method for control of electrochromic devices comprising the steps of:
changing a duty cycle of PWM to a preset Q value according to a signal detected by a detector while the electrochromic device is switched to colored state and the Q value represents electric charge corresponding to colored-state transmittance; and turning off the PWM; thereby response time for coloration and transmittance of the electrochromic device are maintained within a preset range; wherein the Q value is calculated according to the following equation:Q=∑t=t0t1(It×Duty1)+∑t=t1t2(It×Duty2)+…+∑t=t(n-1)tn(It×Dutyn) wherein Q represents electric charge corresponding to colored-state transmittance (mA*Sec), I is current (mA), t is time (Sec), and Duty represents Duty cycle of the PWM. |
地址 |
Tainan TW |