JPS553025A - Electronic apparatus - Google Patents

Electronic apparatus

Info

Publication number
JPS553025A
JPS553025A JP7465178A JP7465178A JPS553025A JP S553025 A JPS553025 A JP S553025A JP 7465178 A JP7465178 A JP 7465178A JP 7465178 A JP7465178 A JP 7465178A JP S553025 A JPS553025 A JP S553025A
Authority
JP
Japan
Prior art keywords
transistor
oscillations
battery
circuit
announcement
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
JP7465178A
Other languages
Japanese (ja)
Other versions
JPS6024969B2 (en
Inventor
Hideyuki Shoji
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.)
Casio Computer Co Ltd
Original Assignee
Casio Computer 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 Casio Computer Co Ltd filed Critical Casio Computer Co Ltd
Priority to JP53074651A priority Critical patent/JPS6024969B2/en
Publication of JPS553025A publication Critical patent/JPS553025A/en
Publication of JPS6024969B2 publication Critical patent/JPS6024969B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Electric Clocks (AREA)
  • Power Sources (AREA)
  • Calculators And Similar Devices (AREA)
  • Direct Current Feeding And Distribution (AREA)

Abstract

PURPOSE: To realize a long-term use of the battery power source with announcement of the battery life by stopping the operation of the load immediately after the stop of oscillations by the load operation and then restarting the oscillations to keep the circuit normal.
CONSTITUTION: When switch 7 is operated in case the battery power source has ample power, oscillator 1 has normal oscillations. Oscillation stop detection circuit 8 receives rectangular wave signal (a) from the division circuit and produces the signals of low potential VSS to turn on 16 transistor 10. With operation of the switch at the consumption time of the battery, the oscillations are stopped by the voltage drop caused by glowing 6 of transistor 10. Differential circuit 8a has no pulse input and delivers constant voltage VDD, and FET13 of detection circuit 8c is turned off to set FF9 and then deliver VDD. As a result, transistor 10 is turned off immediately. With turn-off of transistor 10, the driving voltage returns to the original state to restart oscillation 1. Thus, the battery can be used for a long period of time with announcement of replacement at a proper time.
COPYRIGHT: (C)1980,JPO&Japio
JP53074651A 1978-06-20 1978-06-20 Electronics Expired JPS6024969B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP53074651A JPS6024969B2 (en) 1978-06-20 1978-06-20 Electronics

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP53074651A JPS6024969B2 (en) 1978-06-20 1978-06-20 Electronics

Publications (2)

Publication Number Publication Date
JPS553025A true JPS553025A (en) 1980-01-10
JPS6024969B2 JPS6024969B2 (en) 1985-06-15

Family

ID=13553335

Family Applications (1)

Application Number Title Priority Date Filing Date
JP53074651A Expired JPS6024969B2 (en) 1978-06-20 1978-06-20 Electronics

Country Status (1)

Country Link
JP (1) JPS6024969B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5858492A (en) * 1981-10-01 1983-04-07 Seiko Epson Corp electronic clock
JP2008016958A (en) * 2006-07-03 2008-01-24 Sanyo Electric Co Ltd Oscillation stop detection circuit

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5858492A (en) * 1981-10-01 1983-04-07 Seiko Epson Corp electronic clock
JP2008016958A (en) * 2006-07-03 2008-01-24 Sanyo Electric Co Ltd Oscillation stop detection circuit

Also Published As

Publication number Publication date
JPS6024969B2 (en) 1985-06-15

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