JPS5538734A - Free-running multiple circuit - Google Patents

Free-running multiple circuit

Info

Publication number
JPS5538734A
JPS5538734A JP11118978A JP11118978A JPS5538734A JP S5538734 A JPS5538734 A JP S5538734A JP 11118978 A JP11118978 A JP 11118978A JP 11118978 A JP11118978 A JP 11118978A JP S5538734 A JPS5538734 A JP S5538734A
Authority
JP
Japan
Prior art keywords
turned
capacitor
free
transistors
multiple circuit
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
JP11118978A
Other languages
Japanese (ja)
Other versions
JPS5921218B2 (en
Inventor
Haruo Terai
Masaki Nakamura
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 Holdings Corp
Original Assignee
Matsushita Electric Industrial 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP53111189A priority Critical patent/JPS5921218B2/en
Publication of JPS5538734A publication Critical patent/JPS5538734A/en
Publication of JPS5921218B2 publication Critical patent/JPS5921218B2/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K3/00—Circuits for generating electric pulses; Monostable, bistable or multistable circuits
    • H03K3/02—Generators characterised by the type of circuit or by the means used for producing pulses
    • H03K3/26—Generators characterised by the type of circuit or by the means used for producing pulses by the use, as active elements, of bipolar transistors with internal or external positive feedback
    • H03K3/28—Generators characterised by the type of circuit or by the means used for producing pulses by the use, as active elements, of bipolar transistors with internal or external positive feedback using means other than a transformer for feedback
    • H03K3/281—Generators characterised by the type of circuit or by the means used for producing pulses by the use, as active elements, of bipolar transistors with internal or external positive feedback using means other than a transformer for feedback using at least two transistors so coupled that the input of one is derived from the output of another, e.g. multivibrator
    • H03K3/282—Generators characterised by the type of circuit or by the means used for producing pulses by the use, as active elements, of bipolar transistors with internal or external positive feedback using means other than a transformer for feedback using at least two transistors so coupled that the input of one is derived from the output of another, e.g. multivibrator astable
    • H03K3/2826—Generators characterised by the type of circuit or by the means used for producing pulses by the use, as active elements, of bipolar transistors with internal or external positive feedback using means other than a transformer for feedback using at least two transistors so coupled that the input of one is derived from the output of another, e.g. multivibrator astable using two active transistors of the complementary type
    • H03K3/2828—Generators characterised by the type of circuit or by the means used for producing pulses by the use, as active elements, of bipolar transistors with internal or external positive feedback using means other than a transformer for feedback using at least two transistors so coupled that the input of one is derived from the output of another, e.g. multivibrator astable using two active transistors of the complementary type in an asymmetrical circuit configuration

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)

Abstract

PURPOSE:To ensure the independent setting for the ON- and OFF-time by using the diode to the capacitor charging circuit with a simple constitution of two transistors and thus securing a perfect isolation between the charge current and the discharge current. CONSTITUTION:With application of DC power source 1, transistors Q1 and Q2 are turned off, and capacitor 3 is charged through resistances R1 and R2 plus diode 2. When the terminal voltage of capactitor 3 reaches the reference voltage, Q2 is turned on quickly with charging of capacitor 3 stopped. The output is at H when both Q1 and Q2 are off, and turns to L with Q2 turned on. When the terminal voltage of capacitor 3 becomes less than the 2nd reference voltage, Q1 and Q2 are turned off again with the output turned to H.
JP53111189A 1978-09-08 1978-09-08 Astable multi-circuit Expired JPS5921218B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP53111189A JPS5921218B2 (en) 1978-09-08 1978-09-08 Astable multi-circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP53111189A JPS5921218B2 (en) 1978-09-08 1978-09-08 Astable multi-circuit

Publications (2)

Publication Number Publication Date
JPS5538734A true JPS5538734A (en) 1980-03-18
JPS5921218B2 JPS5921218B2 (en) 1984-05-18

Family

ID=14554743

Family Applications (1)

Application Number Title Priority Date Filing Date
JP53111189A Expired JPS5921218B2 (en) 1978-09-08 1978-09-08 Astable multi-circuit

Country Status (1)

Country Link
JP (1) JPS5921218B2 (en)

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
WORLD PATENT ABSTRACTS JOURNAL *

Also Published As

Publication number Publication date
JPS5921218B2 (en) 1984-05-18

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