JPS57104324A - Timer circuit - Google Patents

Timer circuit

Info

Publication number
JPS57104324A
JPS57104324A JP18098580A JP18098580A JPS57104324A JP S57104324 A JPS57104324 A JP S57104324A JP 18098580 A JP18098580 A JP 18098580A JP 18098580 A JP18098580 A JP 18098580A JP S57104324 A JPS57104324 A JP S57104324A
Authority
JP
Japan
Prior art keywords
capacitor
thyristor
timer
charge
anode
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
JP18098580A
Other languages
Japanese (ja)
Other versions
JPS6020934B2 (en
Inventor
Masayoshi Miyajima
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.)
KUROI DENKI KK
Kuroi Electric Ind Co
Kuroi Electric Co Ltd
Original Assignee
KUROI DENKI KK
Kuroi Electric Ind Co
Kuroi 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 KUROI DENKI KK, Kuroi Electric Ind Co, Kuroi Electric Co Ltd filed Critical KUROI DENKI KK
Priority to JP18098580A priority Critical patent/JPS6020934B2/en
Publication of JPS57104324A publication Critical patent/JPS57104324A/en
Publication of JPS6020934B2 publication Critical patent/JPS6020934B2/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/28—Modifications for introducing a time delay before switching

Landscapes

  • Power Conversion In General (AREA)
  • Electronic Switches (AREA)

Abstract

PURPOSE:To reduce the time required for discharge and to achieve accurate operation of a timer, by discharging through a thyristor connected in parallel with a capacitor. CONSTITUTION:When a switch 13' is closed with no charge in a capacitor 1', a transistor (TR) 3' turns on only with a time determined by the time constant of the capacitor 1' and a discharge resistor 2' for operation of a timer. After a prescribed time of turning on/off of the TR3', the gate and anode of a thyristor 11 are biased reversely owing to a drop voltage by a diode 12 to keep turn off the thyristor 11. When the switch 13' is opened, a current flows between the anode and gate with the charge in the capacitor 1' to turn on the thyristor 11, resulting that the capacitor is rapidly discharged. Thus, inaccurate operation of the timer due to remained charge in the capacitor can be avoided.
JP18098580A 1980-12-20 1980-12-20 timer circuit Expired JPS6020934B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP18098580A JPS6020934B2 (en) 1980-12-20 1980-12-20 timer circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP18098580A JPS6020934B2 (en) 1980-12-20 1980-12-20 timer circuit

Publications (2)

Publication Number Publication Date
JPS57104324A true JPS57104324A (en) 1982-06-29
JPS6020934B2 JPS6020934B2 (en) 1985-05-24

Family

ID=16092721

Family Applications (1)

Application Number Title Priority Date Filing Date
JP18098580A Expired JPS6020934B2 (en) 1980-12-20 1980-12-20 timer circuit

Country Status (1)

Country Link
JP (1) JPS6020934B2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2351779B1 (en) 2010-01-27 2019-04-24 Biosphere Medical, Inc. Microspheres and method of making the microspheres

Also Published As

Publication number Publication date
JPS6020934B2 (en) 1985-05-24

Similar Documents

Publication Publication Date Title
JPS57124946A (en) Pulse detection circuit
JPS57204630A (en) Control circuit of pulse width
JPS57104324A (en) Timer circuit
JPS54100248A (en) Timer circuit
JPS5510238A (en) Rll circuit
JPS5780274A (en) Control circuit for field-effect transistor
JPS54130872A (en) Bistable relay driving circuit
JPS56125110A (en) Reset circuit
JPS5720823A (en) Switching power supply circuit
JPS54157075A (en) Contactless switch
JPS5748829A (en) Semiconductor switch circuit
JPS55142273A (en) Electronic watch
JPS5593320A (en) Switching unit
JPS57152728A (en) Transistor switch
JPS56130730A (en) Flash device
JPS5574240A (en) Timer circuit
JPS5583338A (en) Control circuit of semiconductor element
JPS5686371A (en) Automatic control device for ultrasonic pulse width
JPS54109124A (en) Transistor drive circuit
JPS56166767A (en) Forced firing circuit for thyristor
JPS57203331A (en) Gate controlling circuit of gate turn-off thyristor
JPS57143931A (en) Transistor protecting circuit
JPS57145571A (en) Gate driving circuit for gate turn off thyristor
JPS57173227A (en) Delay circuit
JPS54105539A (en) Flash device