JPH046232U - - Google Patents

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Publication number
JPH046232U
JPH046232U JP4472890U JP4472890U JPH046232U JP H046232 U JPH046232 U JP H046232U JP 4472890 U JP4472890 U JP 4472890U JP 4472890 U JP4472890 U JP 4472890U JP H046232 U JPH046232 U JP H046232U
Authority
JP
Japan
Prior art keywords
resistor
circuit
capacitor
switching element
semiconductor switching
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
JP4472890U
Other languages
Japanese (ja)
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 filed Critical
Priority to JP4472890U priority Critical patent/JPH046232U/ja
Publication of JPH046232U publication Critical patent/JPH046232U/ja
Pending legal-status Critical Current

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  • Emergency Protection Circuit Devices (AREA)

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は従来の突入電流防止の回路図。第２図
は第１図の回路の各部の波形説明図。第３図は、
従来の突入電流防止回路を改良した別の実施図。
第４図は本考案の実施例を示す突入電流防止回路
図。第５図は第４図の回路の各部の波形説明図。
第６図は本考案の他の実施例回路図である。 図に於いて、各部品記号共通でＤ……ダイオー
ド、Ｒ……抵抗、Ｃ……コンデンサ、ＳＣＲ……
サイリスタ、ＴＲ……トライアツク、Ｔ……トラ
ンス、Ｑ……トランジスタ、である。 Figure 1 is a circuit diagram of conventional inrush current prevention. FIG. 2 is a waveform explanatory diagram of each part of the circuit of FIG. 1. Figure 3 shows
Another implementation diagram that improves the conventional inrush current prevention circuit.
FIG. 4 is an inrush current prevention circuit diagram showing an embodiment of the present invention. FIG. 5 is a waveform explanatory diagram of each part of the circuit of FIG. 4.
FIG. 6 is a circuit diagram of another embodiment of the present invention. In the diagram, the common parts symbols are D...Diode, R...Resistor, C...Capacitor, SCR...
Thyristor, TR...triax, T...transformer, Q...transistor.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 交流入力電圧を整流する整流ダイオードと、整
流電圧を平滑するコンデンサとを備えた整流回路
に於いて、交流入力側の少なくとも一線に入力電
流を制限する抵抗と、該抵抗に並列に半導体スイ
ツチング素子を設け、該半導体スイツチング素子
のゲート回路に抵抗とコンデンサから成る時定数
回路を設けた事を特徴とする突入電流防止回路。 In a rectifier circuit equipped with a rectifier diode that rectifies an AC input voltage and a capacitor that smoothes the rectified voltage, a resistor that limits the input current to at least one line on the AC input side, and a semiconductor switching element in parallel with the resistor are provided. An inrush current prevention circuit characterized in that a time constant circuit comprising a resistor and a capacitor is provided in the gate circuit of the semiconductor switching element.
JP4472890U 1990-04-26 1990-04-26 Pending JPH046232U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4472890U JPH046232U (en) 1990-04-26 1990-04-26

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4472890U JPH046232U (en) 1990-04-26 1990-04-26

Publications (1)

Publication Number Publication Date
JPH046232U true JPH046232U (en) 1992-01-21

Family

ID=31558286

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4472890U Pending JPH046232U (en) 1990-04-26 1990-04-26

Country Status (1)

Country Link
JP (1) JPH046232U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013207839A (en) * 2012-03-27 2013-10-07 Mitsubishi Electric Corp Inrush current suppression circuit and light source lighting device

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS524137B1 (en) * 1970-09-12 1977-02-01

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS524137B1 (en) * 1970-09-12 1977-02-01

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013207839A (en) * 2012-03-27 2013-10-07 Mitsubishi Electric Corp Inrush current suppression circuit and light source lighting device

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