JPH04178U - - Google Patents

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Publication number
JPH04178U
JPH04178U JP658090U JP658090U JPH04178U JP H04178 U JPH04178 U JP H04178U JP 658090 U JP658090 U JP 658090U JP 658090 U JP658090 U JP 658090U JP H04178 U JPH04178 U JP H04178U
Authority
JP
Japan
Prior art keywords
voltage
output
transformer
detection circuit
shunt regulator
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
JP658090U
Other languages
Japanese (ja)
Other versions
JPH0747991Y2 (en
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 JP658090U priority Critical patent/JPH0747991Y2/en
Publication of JPH04178U publication Critical patent/JPH04178U/ja
Application granted granted Critical
Publication of JPH0747991Y2 publication Critical patent/JPH0747991Y2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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  • Dc-Dc Converters (AREA)

Description

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

第１はこの考案に係るスイツチング電源装置の
一例を示す構成図、第２図は同スイツチング電源
装置における出力電圧検出回路の具体的構成を示
す電気回路図、第３図は従来のスイツチング電源
装置を示す構成図、第４図は第３図のものの出力
電圧検出回路の具体的構成を示す電気回路図、第
５ａ図及び第５ｂ図はそれぞれ異常電圧表示用発
光ダイオードの非動作区間およひ誤点灯動作区間
の説明図、第６図は従来の別のスイツチング電源
装置を示す構成図である。 ４……トランス、４ａ……１次側、４ｂ……２
次側、５……スイツチング素子、６……制御回路
、７……整流素子、８……平滑コンデンサ、９…
…出力電圧検出回路、１０……フオトカプラ、１
４……異常電圧表示回路、１５……定電圧素子、
２３……分圧回路、２６……シヤントレギユレー
タ。 The first is a configuration diagram showing an example of a switching power supply according to this invention, FIG. 2 is an electric circuit diagram showing a specific configuration of an output voltage detection circuit in the same switching power supply, and FIG. 3 is a diagram showing a conventional switching power supply. 4 is an electrical circuit diagram showing a specific configuration of the output voltage detection circuit of the one shown in FIG. FIG. 6, which is an explanatory diagram of the lighting operation section, is a configuration diagram showing another conventional switching power supply device. 4...Transformer, 4a...Primary side, 4b...2
Next side, 5... Switching element, 6... Control circuit, 7... Rectifying element, 8... Smoothing capacitor, 9...
...Output voltage detection circuit, 10...Photocoupler, 1
4... Abnormal voltage display circuit, 15... Constant voltage element,
23... Voltage divider circuit, 26... Shunt regulator.

補正 平３．８．３０ 図面の簡単な説明を次のように補正する。 明細書第１１頁第１０行目；「第１は」とある
を「第１図は」と訂正します。Amendment 3.8.30. The brief description of the drawing is amended as follows. Page 11, line 10 of the specification: "The first is" should be corrected to "The first is".

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] トランスの１次側に直列接続されたスイツチン
グ素子と、上記トランスの２次側に生起した交流
を整流する素子と、整流出力を平滑するコンデン
サに並列接続された分圧回路の分圧電圧と内部基
準電圧とを比較するシヤントレギユレータを有す
る出力電圧検出回路と、この出力電圧検出回路の
検出出力をフオトカプラを介して受けて、上記ス
イツチング素子のＯＮ・ＯＦＦ時間比を制御して
出力電圧を一定に保持させる制御回路と、上記ト
ランスの２次側出力ラインと上記シヤントレギユ
レータのカソードとの間に介挿されて、この間の
電位が所定レベルを越えると導通する定電圧素子
をもつた異常電圧表示回路とを具備したことを特
徴とするスイツチング電源装置。 A switching element connected in series to the primary side of the transformer, an element that rectifies the alternating current generated on the secondary side of the transformer, and a divided voltage of a voltage dividing circuit connected in parallel to a capacitor that smoothes the rectified output and internal An output voltage detection circuit has a shunt regulator that compares the voltage with a reference voltage, and receives the detection output of this output voltage detection circuit via a photocoupler to control the ON/OFF time ratio of the switching element to determine the output voltage. and a constant voltage element that is inserted between the secondary output line of the transformer and the cathode of the shunt regulator and becomes conductive when the potential therebetween exceeds a predetermined level. 1. A switching power supply device comprising: an abnormal voltage display circuit.
JP658090U 1990-01-27 1990-01-27 Switching power supply Expired - Fee Related JPH0747991Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP658090U JPH0747991Y2 (en) 1990-01-27 1990-01-27 Switching power supply

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP658090U JPH0747991Y2 (en) 1990-01-27 1990-01-27 Switching power supply

Publications (2)

Publication Number Publication Date
JPH04178U true JPH04178U (en) 1992-01-06
JPH0747991Y2 JPH0747991Y2 (en) 1995-11-01

Family

ID=31510253

Family Applications (1)

Application Number Title Priority Date Filing Date
JP658090U Expired - Fee Related JPH0747991Y2 (en) 1990-01-27 1990-01-27 Switching power supply

Country Status (1)

Country Link
JP (1) JPH0747991Y2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007108984A (en) * 2005-10-13 2007-04-26 Matsushita Electric Ind Co Ltd Power supply stabilizing circuit for heating element storage box cooling device
JP4743710B2 (en) * 2006-09-28 2011-08-10 堅田電機株式会社 Power circuit
US8049373B2 (en) 2006-12-05 2011-11-01 Panasonic Corporation Apparatus for stabilizing power supply of heater housing box cooling apparatus

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007108984A (en) * 2005-10-13 2007-04-26 Matsushita Electric Ind Co Ltd Power supply stabilizing circuit for heating element storage box cooling device
JP4687372B2 (en) * 2005-10-13 2011-05-25 パナソニック株式会社 Power supply stabilization circuit for heating element storage box cooling device
JP4743710B2 (en) * 2006-09-28 2011-08-10 堅田電機株式会社 Power circuit
US8049373B2 (en) 2006-12-05 2011-11-01 Panasonic Corporation Apparatus for stabilizing power supply of heater housing box cooling apparatus

Also Published As

Publication number Publication date
JPH0747991Y2 (en) 1995-11-01

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Legal Events

Date Code Title Description
LAPS Cancellation because of no payment of annual fees