JPS55138648A - Ionization type smoke detector - Google Patents

Ionization type smoke detector

Info

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
Application number
JP4628079A
Other languages
Japanese (ja)
Other versions
JPS6023302B2 (en
Inventor
Hiromi Fujisaki
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Electric Works Co Ltd
Original Assignee
Matsushita Electric Works Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Matsushita Electric Works Ltd filed Critical Matsushita Electric Works Ltd
Priority to JP4628079A priority Critical patent/JPS6023302B2/en
Publication of JPS55138648A publication Critical patent/JPS55138648A/en
Publication of JPS6023302B2 publication Critical patent/JPS6023302B2/en
Expired legal-status Critical Current

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
JP4628079A 1979-04-14 1979-04-14 ionization smoke detector Expired JPS6023302B2 (en)

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61218802A (en) * 1985-03-22 1986-09-29 Aisin Seiki Co Ltd Negative pressure actuator

Cited By (1)

* Cited by examiner, † Cited by third party
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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