JPS62201739U - - Google Patents
Info
- Publication number
- JPS62201739U JPS62201739U JP9050886U JP9050886U JPS62201739U JP S62201739 U JPS62201739 U JP S62201739U JP 9050886 U JP9050886 U JP 9050886U JP 9050886 U JP9050886 U JP 9050886U JP S62201739 U JPS62201739 U JP S62201739U
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- battery
- fan motor
- power supply
- thermostat
- 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.)
- Pending
Links
- 238000010586 diagram Methods 0.000 description 4
- 239000003990 capacitor Substances 0.000 description 1
Landscapes
- Overhead Projectors And Projection Screens (AREA)
Description
第１図は本考案のオーバーヘツドプロジエクタ
ーの駆動回路の回路図、第２図は乾電池を用いた
場合の回路図であり、第３図は本考案の他の実施
例の場合の回路図である。
図中の符号、２……メインスイツチ、３……ダ
イオード、４……コンデンサ、５……蓄電池、５
ａ……乾電池、６……サーモスタツト、７……フ
アン用モータ、８……ランプ、９……切換えスイ
ツチ、１０……Ａ／Ｄコンバータ、１１……リレ
ー、１２……温度センサー、１３……スイツチ。
Figure 1 is a circuit diagram of the driving circuit of the overhead projector of the present invention, Figure 2 is a circuit diagram when dry batteries are used, and Figure 3 is a circuit diagram of another embodiment of the present invention. be. Symbols in the diagram: 2... Main switch, 3... Diode, 4... Capacitor, 5... Storage battery, 5
a... Dry battery, 6... Thermostat, 7... Fan motor, 8... Lamp, 9... Changeover switch, 10... A/D converter, 11... Relay, 12... Temperature sensor, 13... ...Switch.
Claims (1)
る給電回路を設け、コンセントを外した場合でも
、電池からの給電により、フアン用モータの駆動
を行い得るように構成したことを特徴とするオー
バーヘツドプロジエクターの駆動回路。 (2) フアン用モータ駆動回路と並列に電池によ
る給電回路を設け、両回路の間にサーモスタツト
によるスイツチ回路を設けるとともに、メインス
イツチによりランプがオフされた後でも、サーモ
スタツトがオンされている間は、電池からの給電
によりフアン用モータを駆動するように構成した
ことを特徴とする実用新案登録請求の範囲第１項
に記載のオーバーヘツドプロジエクターの駆動回
路。[Claims for Utility Model Registration] (1) A battery power supply circuit is provided in parallel with the fan motor drive circuit, so that the fan motor can be driven by power supply from the battery even when the outlet is disconnected. A drive circuit for an overhead projector, which is characterized by: (2) A power supply circuit using a battery is installed in parallel with the fan motor drive circuit, and a switch circuit using a thermostat is installed between the two circuits, and the thermostat is turned on even after the lamp is turned off by the main switch. 2. The driving circuit for an overhead projector according to claim 1, wherein the driving circuit is configured to drive a fan motor by supplying power from a battery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9050886U JPS62201739U (en) | 1986-06-16 | 1986-06-16 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9050886U JPS62201739U (en) | 1986-06-16 | 1986-06-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62201739U true JPS62201739U (en) | 1987-12-23 |
Family
ID=30950440
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9050886U Pending JPS62201739U (en) | 1986-06-16 | 1986-06-16 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62201739U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS565132B2 (en) * | 1977-06-03 | 1981-02-03 |
-
1986
- 1986-06-16 JP JP9050886U patent/JPS62201739U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS565132B2 (en) * | 1977-06-03 | 1981-02-03 |