JPS55138648A - Ionization type smoke detector - Google Patents
Ionization type smoke detectorInfo
- Publication number
- JPS55138648A JPS55138648A JP4628079A JP4628079A JPS55138648A JP S55138648 A JPS55138648 A JP S55138648A JP 4628079 A JP4628079 A JP 4628079A JP 4628079 A JP4628079 A JP 4628079A JP S55138648 A JPS55138648 A JP S55138648A
- Authority
- JP
- Japan
- Prior art keywords
- current consumption
- current
- put10
- resetting
- becomes
- 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
Landscapes
- Other Investigation Or Analysis Of Materials By Electrical Means (AREA)
- Fire-Detection Mechanisms (AREA)
Abstract
PURPOSE: To reduce electric current consumption and enable sure resetting by using Zener diodes and high resistance.
CONSTITUTION: At the time when the voltage V1 becomes from low level to high level upon turning on of electric power source, the more current first is apt to to flow in the first stage but a transistor TR2 is cut off and therefore only slight current of about several μmA flows through a high resistance 26, and this results in decreased current consumption. At the same time, the gate potential of a PUT10 rises and the PUT10 becomes more and more highly cut-off state. As a result of this, the resetting of the circuit is surely accomplished and the current consumption is kept low.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4628079A JPS6023302B2 (en) | 1979-04-14 | 1979-04-14 | ionization smoke detector |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4628079A JPS6023302B2 (en) | 1979-04-14 | 1979-04-14 | ionization smoke detector |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS55138648A true JPS55138648A (en) | 1980-10-29 |
JPS6023302B2 JPS6023302B2 (en) | 1985-06-06 |
Family
ID=12742812
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP4628079A Expired JPS6023302B2 (en) | 1979-04-14 | 1979-04-14 | ionization smoke detector |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6023302B2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0668568A (en) * | 1991-07-29 | 1994-03-11 | Seiko Epson Corp | Magnetic disk driver |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61218802A (en) * | 1985-03-22 | 1986-09-29 | Aisin Seiki Co Ltd | Negative pressure actuator |
-
1979
- 1979-04-14 JP JP4628079A patent/JPS6023302B2/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0668568A (en) * | 1991-07-29 | 1994-03-11 | Seiko Epson Corp | Magnetic disk driver |
Also Published As
Publication number | Publication date |
---|---|
JPS6023302B2 (en) | 1985-06-06 |
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