JPS55159621A - Blocking oscillator - Google Patents

Blocking oscillator

Info

Publication number
JPS55159621A
JPS55159621A JP6729579A JP6729579A JPS55159621A JP S55159621 A JPS55159621 A JP S55159621A JP 6729579 A JP6729579 A JP 6729579A JP 6729579 A JP6729579 A JP 6729579A JP S55159621 A JPS55159621 A JP S55159621A
Authority
JP
Japan
Prior art keywords
trq10
voltage
induced
transistor
current
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
JP6729579A
Other languages
Japanese (ja)
Other versions
JPS5947892B2 (en
Inventor
Sumio Komi
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.)
NEC Corp
Original Assignee
NEC Corp
Nippon 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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP6729579A priority Critical patent/JPS5947892B2/en
Publication of JPS55159621A publication Critical patent/JPS55159621A/en
Publication of JPS5947892B2 publication Critical patent/JPS5947892B2/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
    • H03K3/30—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 a transformer for feedback, e.g. blocking oscillator

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Dc-Dc Converters (AREA)
  • Inductance-Capacitance Distribution Constants And Capacitance-Resistance Oscillators (AREA)

Abstract

PURPOSE:To enable high speed operation without giving effect on the operating speed of transistor, by abosrbing the voltage induced to the transformer by a Zener diode when the collector current flowing to the transistor is cut off. CONSTITUTION:A base current flows to a transistor TRQ10 when the power supply voltage +Vcc is fed. Thus, a collector current Ic flows through the primary winding N1 of a transformer Tr. An induced electromotive forcre VB is induced in the secondary winding N2 with this current Ic, and TRQ10 turns on with the positive feedback operation by the voltage VB. On the other hand, charge is stored in a capacitor C11, the current Ic is reduced when the voltage VB is decreased, a negative voltage is fed to the base of TRQ10 and TRQ10 is transferred to OFF-state. In this case, the spike voltage induced to TR is absorbed with Zener effect of a Zener diode DZ1. In this case, the diode DZ1 has only low resistance component and given so effect on the operating speed of TRQ10.
JP6729579A 1979-05-30 1979-05-30 blocking oscillator Expired JPS5947892B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6729579A JPS5947892B2 (en) 1979-05-30 1979-05-30 blocking oscillator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6729579A JPS5947892B2 (en) 1979-05-30 1979-05-30 blocking oscillator

Publications (2)

Publication Number Publication Date
JPS55159621A true JPS55159621A (en) 1980-12-11
JPS5947892B2 JPS5947892B2 (en) 1984-11-22

Family

ID=13340848

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6729579A Expired JPS5947892B2 (en) 1979-05-30 1979-05-30 blocking oscillator

Country Status (1)

Country Link
JP (1) JPS5947892B2 (en)

Also Published As

Publication number Publication date
JPS5947892B2 (en) 1984-11-22

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