JPS6441320A - Photoelectric switch - Google Patents
Photoelectric switchInfo
- Publication number
- JPS6441320A JPS6441320A JP19616687A JP19616687A JPS6441320A JP S6441320 A JPS6441320 A JP S6441320A JP 19616687 A JP19616687 A JP 19616687A JP 19616687 A JP19616687 A JP 19616687A JP S6441320 A JPS6441320 A JP S6441320A
- Authority
- JP
- Japan
- Prior art keywords
- photo
- resistor
- amplifier
- voltage
- light
- 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
Landscapes
- Electronic Switches (AREA)
Abstract
PURPOSE:To save the number of components while suppressing power consumption low by connecting a light emitting diode in parallel with a series circuit consisting of a photo transistor(TR) detecting a light and the 1st resistor, connecting one terminal of the diode to the power supply via the 2nd resistor and providing an amplifier TR driven by a voltage caused from the photo TR. CONSTITUTION:The light emitting diode (LED) 1 is connected in parallel to a series circuit comprising a resistor R5 and a photo TR 2, and the one terminal is connected to a power supply via a resistor R4. Moreover, an amplifier TR 3 driven by a voltage caused in the photo TR 2 is arranged to the output side of the resistor R5. That is, when an object to be detected moves between the LED 1 and the photo TR 2, the light is shut off and the photo TR 2 is turned off, then a voltage in excess of the saturated voltage is applied to a voltage Vbe between the base and emitter of the amplifier TR 3, then the amplifier TR 3 is turned on. Thus, the power consumption is reduced and the number of components is decreased.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP19616687A JPS6441320A (en) | 1987-08-07 | 1987-08-07 | Photoelectric switch |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP19616687A JPS6441320A (en) | 1987-08-07 | 1987-08-07 | Photoelectric switch |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6441320A true JPS6441320A (en) | 1989-02-13 |
Family
ID=16353305
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP19616687A Pending JPS6441320A (en) | 1987-08-07 | 1987-08-07 | Photoelectric switch |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6441320A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20030016166A (en) * | 2001-08-18 | 2003-02-26 | 페베베-루라텍 인두스트리프로둑테 게엠베하 | Signal generation and correction circuit and method for correcting digital signals |
JP2011256503A (en) * | 2010-06-11 | 2011-12-22 | Okamura Corp | Cloth for furniture |
-
1987
- 1987-08-07 JP JP19616687A patent/JPS6441320A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20030016166A (en) * | 2001-08-18 | 2003-02-26 | 페베베-루라텍 인두스트리프로둑테 게엠베하 | Signal generation and correction circuit and method for correcting digital signals |
JP2011256503A (en) * | 2010-06-11 | 2011-12-22 | Okamura Corp | Cloth for furniture |
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