JPS56154825A - Extracting circuit for power-source synchronizing pulse - Google Patents

Extracting circuit for power-source synchronizing pulse

Info

Publication number
JPS56154825A
JPS56154825A JP5829680A JP5829680A JPS56154825A JP S56154825 A JPS56154825 A JP S56154825A JP 5829680 A JP5829680 A JP 5829680A JP 5829680 A JP5829680 A JP 5829680A JP S56154825 A JPS56154825 A JP S56154825A
Authority
JP
Japan
Prior art keywords
terminal
transistor
power
circuit
voltage
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
JP5829680A
Other languages
Japanese (ja)
Inventor
Katsuyuki Kiyozumi
Yasumasa Namikoshi
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 Electric Works Co Ltd
Original Assignee
Matsushita Electric Works 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 Works Ltd filed Critical Matsushita Electric Works Ltd
Priority to JP5829680A priority Critical patent/JPS56154825A/en
Publication of JPS56154825A publication Critical patent/JPS56154825A/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
    • H03K5/08—Shaping pulses by limiting; by thresholding; by slicing, i.e. combined limiting and thresholding

Landscapes

  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Rectifiers (AREA)

Abstract

PURPOSE:To obtain easily power-source synchronizing pulses which rise and fall sharply, by switching on and off the output voltage of a constant-voltage circuit through a transistor. CONSTITUTION:A stepped-down commercial power source is applied to the AC terminal of bridge rectifying circuit 1, and constant voltage circuit 6 is connected to the DC terminal. Between the base and emitter of transistor Q whose collector is connected to the output terminal of the constant voltage circuit 6 via current limiting resistance RL, one AC terminal and one DC terminal of rectifying circuit 1 are connected and a half-wave rectified voltage is applied as the forward bias voltage of transistor Q. Consequently, the output voltage of constant voltage circuit 6 is switched on and off by transistor Q and from the collector, power-source synchronizing pulses which rise and fall sharply are obtained.
JP5829680A 1980-04-30 1980-04-30 Extracting circuit for power-source synchronizing pulse Pending JPS56154825A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5829680A JPS56154825A (en) 1980-04-30 1980-04-30 Extracting circuit for power-source synchronizing pulse

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5829680A JPS56154825A (en) 1980-04-30 1980-04-30 Extracting circuit for power-source synchronizing pulse

Publications (1)

Publication Number Publication Date
JPS56154825A true JPS56154825A (en) 1981-11-30

Family

ID=13080250

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5829680A Pending JPS56154825A (en) 1980-04-30 1980-04-30 Extracting circuit for power-source synchronizing pulse

Country Status (1)

Country Link
JP (1) JPS56154825A (en)

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