JPS54150651A - Alarm for control board - Google Patents

Alarm for control board

Info

Publication number
JPS54150651A
JPS54150651A JP5874778A JP5874778A JPS54150651A JP S54150651 A JPS54150651 A JP S54150651A JP 5874778 A JP5874778 A JP 5874778A JP 5874778 A JP5874778 A JP 5874778A JP S54150651 A JPS54150651 A JP S54150651A
Authority
JP
Japan
Prior art keywords
alarm
control board
resistor
transistor
terminals
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
Application number
JP5874778A
Other languages
Japanese (ja)
Inventor
Hiroshi Kimura
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric Co 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP5874778A priority Critical patent/JPS54150651A/en
Publication of JPS54150651A publication Critical patent/JPS54150651A/en
Pending legal-status Critical Current

Links

Landscapes

  • Alarm Systems (AREA)
  • Emergency Protection Circuit Devices (AREA)

Abstract

PURPOSE: To raise an alarm, by coupling a resistor between terminals of a control board and by turning on a transistor by the terminal voltage of the resistor when a thermostat is actuated.
CONSTITUTION: The resistor 6 is connected between the terminals A, B of the control board. When the thermostat 1 is actuted (opened), the transistor 7 is turned on by the voltage which appears between the terminals of the resistor 6. An alarm unit 8 coupled to the collector of the transistor 7 is thus driven to raise an alarm.
COPYRIGHT: (C)1979,JPO&Japio
JP5874778A 1978-05-19 1978-05-19 Alarm for control board Pending JPS54150651A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5874778A JPS54150651A (en) 1978-05-19 1978-05-19 Alarm for control board

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5874778A JPS54150651A (en) 1978-05-19 1978-05-19 Alarm for control board

Publications (1)

Publication Number Publication Date
JPS54150651A true JPS54150651A (en) 1979-11-27

Family

ID=13093124

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5874778A Pending JPS54150651A (en) 1978-05-19 1978-05-19 Alarm for control board

Country Status (1)

Country Link
JP (1) JPS54150651A (en)

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