JPS5646334A - Timer device - Google Patents

Timer device

Info

Publication number
JPS5646334A
JPS5646334A JP12200079A JP12200079A JPS5646334A JP S5646334 A JPS5646334 A JP S5646334A JP 12200079 A JP12200079 A JP 12200079A JP 12200079 A JP12200079 A JP 12200079A JP S5646334 A JPS5646334 A JP S5646334A
Authority
JP
Japan
Prior art keywords
time constant
circuit
signal
input signal
time
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
JP12200079A
Other languages
Japanese (ja)
Inventor
Kazuhiro 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.)
Ricoh Co Ltd
Original Assignee
Ricoh 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 Ricoh Co Ltd filed Critical Ricoh Co Ltd
Priority to JP12200079A priority Critical patent/JPS5646334A/en
Publication of JPS5646334A publication Critical patent/JPS5646334A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K5/00—Manipulating of pulses not covered by one of the other main groups of this subclass
    • H03K5/01—Shaping pulses
    • H03K5/04—Shaping pulses by increasing duration; by decreasing duration

Landscapes

  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Electronic Switches (AREA)

Abstract

PURPOSE:To enable to produce the timer output according to the input signal simply, by changing the time constant of the time constant circuit according to the input signal and adding the output to the sole time limit control circuit. CONSTITUTION:When an input signal (a) is input, the transistor TRQ1 in the time control circuit 2 is on, the comparator COM1 is triggered with the differentiation circuit consisting of a resistor R7 and a capacitor C0, FF-F is set, and the timer signal T is at H level. On the other hand, the signal (a) opens the analog gate G1 in the time constant circuit 1, connects the time constant resistor R1 to the power supply E, and the capacitor C is charged up in the time constant R1 C. When the charging voltage of the capacitance C exceeds the voltage dividing value formed with the resistances R8-R10 in the comparison circuit COM2, FF-F is reset, the charge in the capacitor C is discharged through TRQ turned on, thereby preparing the circuit to the next signal input. This can be applied also to the case with signals (b)-(d), and the output of different time can be developed depending on the input signal by suitably selecting the time constant resistances R1-R4 and voltage dividing resistances R8-R10.
JP12200079A 1979-09-25 1979-09-25 Timer device Pending JPS5646334A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12200079A JPS5646334A (en) 1979-09-25 1979-09-25 Timer device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12200079A JPS5646334A (en) 1979-09-25 1979-09-25 Timer device

Publications (1)

Publication Number Publication Date
JPS5646334A true JPS5646334A (en) 1981-04-27

Family

ID=14825073

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12200079A Pending JPS5646334A (en) 1979-09-25 1979-09-25 Timer device

Country Status (1)

Country Link
JP (1) JPS5646334A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5830336U (en) * 1981-08-20 1983-02-28 エスエムシ−株式会社 Delay time selection circuit
JPS5830335U (en) * 1981-08-20 1983-02-28 エスエムシ−株式会社 Delay time selection circuit

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5830336U (en) * 1981-08-20 1983-02-28 エスエムシ−株式会社 Delay time selection circuit
JPS5830335U (en) * 1981-08-20 1983-02-28 エスエムシ−株式会社 Delay time selection circuit

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