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JPS55111186A - Laser power supply circuit - Google Patents

Laser power supply circuit

Info

Publication number
JPS55111186A
JPS55111186A JP1888579A JP1888579A JPS55111186A JP S55111186 A JPS55111186 A JP S55111186A JP 1888579 A JP1888579 A JP 1888579A JP 1888579 A JP1888579 A JP 1888579A JP S55111186 A JPS55111186 A JP S55111186A
Authority
JP
Japan
Prior art keywords
comparators
capacitor
circuit
outputs
terminal 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
JP1888579A
Other languages
Japanese (ja)
Inventor
Taigen Kuroshima
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 JP1888579A priority Critical patent/JPS55111186A/en
Publication of JPS55111186A publication Critical patent/JPS55111186A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
    • H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
    • H01S3/09—Processes or apparatus for excitation, e.g. pumping
    • H01S3/091—Processes or apparatus for excitation, e.g. pumping using optical pumping
    • H01S3/0915—Processes or apparatus for excitation, e.g. pumping using optical pumping by incoherent light
    • H01S3/092—Processes or apparatus for excitation, e.g. pumping using optical pumping by incoherent light of flash lamp

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • Optics & Photonics (AREA)
  • Lasers (AREA)
  • Discharge-Lamp Control Circuits And Pulse- Feed Circuits (AREA)

Abstract

PURPOSE:To make a device compact and cheap, by providing a circuit for detecting the terminal voltage of a capacitor and a circuit for controlling the width of switching pulse of a DC conversion circuit by the output of the detection circuit. CONSTITUTION:Two outputs inverse in phase to each other are sent out of an oscillator 9 and applied to input terminals of comparators 12a, 12b through integrators 11a, 11b. The output of an inversion amplifier 8 is applied to the other input terminals of the comparators. The outputs of the comparators 12a, 12b and the oscillator 9 are supplied to AND circuits 13a, 13b, the outputs of which are supplied as control signals to switching transistors 1a, 1b. The turn-on period of the switching transistors is short when the terminal voltage of a capacitor 6 is low, but long when the terminal voltage is high. As a result, the capacitor 6 is charged always by an optimal current.
JP1888579A 1979-02-20 1979-02-20 Laser power supply circuit Pending JPS55111186A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1888579A JPS55111186A (en) 1979-02-20 1979-02-20 Laser power supply circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1888579A JPS55111186A (en) 1979-02-20 1979-02-20 Laser power supply circuit

Publications (1)

Publication Number Publication Date
JPS55111186A true JPS55111186A (en) 1980-08-27

Family

ID=11984012

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1888579A Pending JPS55111186A (en) 1979-02-20 1979-02-20 Laser power supply circuit

Country Status (1)

Country Link
JP (1) JPS55111186A (en)

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