JPS6329124U - - Google Patents
Info
- Publication number
- JPS6329124U JPS6329124U JP12282086U JP12282086U JPS6329124U JP S6329124 U JPS6329124 U JP S6329124U JP 12282086 U JP12282086 U JP 12282086U JP 12282086 U JP12282086 U JP 12282086U JP S6329124 U JPS6329124 U JP S6329124U
- Authority
- JP
- Japan
- Prior art keywords
- voltage
- ecd
- coloring
- circuit
- terminal voltage
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000004040 coloring Methods 0.000 claims 6
- 238000005070 sampling Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
- 239000003990 capacitor Substances 0.000 description 1
Description
第１図は本考案ＥＣＤ防眩ミラーの駆動回路図
、第２図はＥＣＤの構造の一例を示す断面図、第
３図はオルタネイトスイツチを選択したときの本
実施例防眩ミラーの駆動回路の動作を示すタイミ
ングチヤート、第４図は所定時間毎の着色端子電
圧と反射率との関係を示す図である。
１……ＥＣＤ、１０，２０……サンプルホール
ド回路、１０ａ，２０ａ……オペアンプ、１１〜
１６……トランジスタ、１７，２７……比較器、
１８，２８……インバータ、１９，２９……ＮＯ
Ｒ回路、２５……ＥＣＤ駆動電圧源、２４……ク
ロツク回路、３１，３２……オルタネイトスイツ
チ、Ｃ１，Ｃ２……コンデンサ、ＶＲ１，ＶＲ２
……ボリユーム。
Fig. 1 is a drive circuit diagram of the ECD anti-glare mirror of the present invention, Fig. 2 is a sectional view showing an example of the ECD structure, and Fig. 3 is a drive circuit diagram of the anti-glare mirror of the present invention when the alternate switch is selected. FIG. 4 is a timing chart showing the operation, and is a diagram showing the relationship between colored terminal voltage and reflectance at each predetermined time. 1... ECD, 10, 20... Sample hold circuit, 10a, 20a... Operational amplifier, 11...
16...Transistor, 17,27...Comparator,
18, 28... Inverter, 19, 29... NO
R circuit, 25...ECD drive voltage source, 24...Clock circuit, 31, 32...Alternate switch, C1 , C2 ...Capacitor, VR1 , VR2
...Volume.
Claims (1)
を用いた防眩ミラーの駆動回路であつて、該駆動
回路はＥＣＤの着色側端子電圧を検出する回路と
、ＥＣＤの端子電圧が基準電圧を超えると電圧印
加を止めて所定の着消色濃度に制御する回路とよ
りなることを特徴とするＥＣＤ防眩ミラーの駆動
回路。 ２ 制御回路はクロツク回路で発生する周期でＥ
ＣＤ着消色側端子電圧のサンプリングとＥＣＤ駆
動電圧とを交互に繰返し、着色側サンプルホール
ドの出力が設定された電圧を超えると駆動用の通
電を停止し、また着色側端子電圧を消色側サンプ
ルホールドし、その出力電圧が消色側の設定され
た電圧より低下したとき、通電を停止させる構成
となつている実用新案登録請求の範囲第１項記載
のＥＣＤ防眩ミラーの駆動回路。[Claims for Utility Model Registration] 1. A drive circuit for an anti-glare mirror using an electrochromic device (ECD) panel, which drive circuit includes a circuit that detects the colored side terminal voltage of the ECD, and a circuit that detects the terminal voltage of the ECD. 1. A drive circuit for an ECD anti-glare mirror, comprising a circuit that stops voltage application when the voltage exceeds a reference voltage and controls the coloring density to a predetermined coloring/decoloring density. 2 The control circuit is E with the period generated by the clock circuit.
Sampling of the CD coloring side terminal voltage and ECD driving voltage are repeated alternately, and when the output of the coloring side sample hold exceeds the set voltage, the driving current is stopped, and the coloring side terminal voltage is changed to the coloring side terminal voltage. A drive circuit for an ECD anti-glare mirror according to claim 1, which is configured to sample and hold and stop energization when the output voltage drops below a set voltage on the erasing side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986122820U JPH0633450Y2 (en) | 1986-08-11 | 1986-08-11 | Driving circuit for ECD anti-glare mirror |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986122820U JPH0633450Y2 (en) | 1986-08-11 | 1986-08-11 | Driving circuit for ECD anti-glare mirror |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6329124U true JPS6329124U (en) | 1988-02-25 |
| JPH0633450Y2 JPH0633450Y2 (en) | 1994-08-31 |
Family
ID=31013369
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1986122820U Expired - Lifetime JPH0633450Y2 (en) | 1986-08-11 | 1986-08-11 | Driving circuit for ECD anti-glare mirror |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0633450Y2 (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6156638U (en) * | 1984-09-17 | 1986-04-16 |
-
1986
- 1986-08-11 JP JP1986122820U patent/JPH0633450Y2/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6156638U (en) * | 1984-09-17 | 1986-04-16 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0633450Y2 (en) | 1994-08-31 |
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