JPS61121772A - Rush current preventing circuit of dc stabilized power source - Google Patents

Rush current preventing circuit of dc stabilized power source

Info

Publication number
JPS61121772A
JPS61121772A JP24068384A JP24068384A JPS61121772A JP S61121772 A JPS61121772 A JP S61121772A JP 24068384 A JP24068384 A JP 24068384A JP 24068384 A JP24068384 A JP 24068384A JP S61121772 A JPS61121772 A JP S61121772A
Authority
JP
Japan
Prior art keywords
power source
rush current
current preventing
resistor
output
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
JP24068384A
Other languages
Japanese (ja)
Inventor
Toshio Kobayashi
Original Assignee
Hitachi Lighting 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 Hitachi Lighting Ltd filed Critical Hitachi Lighting Ltd
Priority to JP24068384A priority Critical patent/JPS61121772A/en
Publication of JPS61121772A publication Critical patent/JPS61121772A/en
Pending legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02MAPPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M3/00Conversion of dc power input into dc power output
    • H02M3/22Conversion of dc power input into dc power output with intermediate conversion into ac
    • H02M3/24Conversion of dc power input into dc power output with intermediate conversion into ac by static converters
    • H02M3/28Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac

Abstract

PURPOSE:To obtain small-sized inexpensive power source by forming an auxiliary power source by the output of a rush current preventing resistor. CONSTITUTION:A commercial power source V0 is rectified by a rectifier 9 to a DC power through the primary smoothing capacitor 10 and a DC/DC converter to obtain an output voltage V2. When the commercial power source is turned ON, if an auxiliary voltage V1 stepped down and rectified by a commercial transformer 19 is generated, the converter operates to feedback the voltage of the winding 13 of a high frequency transformer 12 to conduct a switching element 4. Thus, a rush current preventing resistor 5 is shortcircuited to perform a normal operation. in this case, the voltage V1 is obtained from the output V3 of a rush current preventing resistor 5. Thus, since the output V3 of the resistor 5 is delayed by the time constant of the capacitor 10 and the resistor 5, the power V1 becomes a delay waveform to prevent the rush current when the converter is operated.
JP24068384A 1984-11-16 1984-11-16 Rush current preventing circuit of dc stabilized power source Pending JPS61121772A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP24068384A JPS61121772A (en) 1984-11-16 1984-11-16 Rush current preventing circuit of dc stabilized power source

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP24068384A JPS61121772A (en) 1984-11-16 1984-11-16 Rush current preventing circuit of dc stabilized power source

Publications (1)

Publication Number Publication Date
JPS61121772A true JPS61121772A (en) 1986-06-09

Family

ID=17063151

Family Applications (1)

Application Number Title Priority Date Filing Date
JP24068384A Pending JPS61121772A (en) 1984-11-16 1984-11-16 Rush current preventing circuit of dc stabilized power source

Country Status (1)

Country Link
JP (1) JPS61121772A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1322659C (en) * 2004-07-16 2007-06-20 中国科学院上海光学精密机械研究所 Low power semiconductor laser driving power

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1322659C (en) * 2004-07-16 2007-06-20 中国科学院上海光学精密机械研究所 Low power semiconductor laser driving power

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