JPS63127288U - - Google Patents
Info
- Publication number
- JPS63127288U JPS63127288U JP1731587U JP1731587U JPS63127288U JP S63127288 U JPS63127288 U JP S63127288U JP 1731587 U JP1731587 U JP 1731587U JP 1731587 U JP1731587 U JP 1731587U JP S63127288 U JPS63127288 U JP S63127288U
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- thermistor
- converter circuit
- current prevention
- circuit according
- 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
Links
- 239000003990 capacitor Substances 0.000 claims description 2
- 238000009499 grossing Methods 0.000 claims description 2
- 230000002265 prevention Effects 0.000 claims 4
- 238000010586 diagram Methods 0.000 description 4
Landscapes
- Rectifiers (AREA)
- Control Of Voltage And Current In General (AREA)
Description
第１図はこの考案の第一実施例によるコンバー
タ回路を示す回路図、第２図はこの考案の第二実
施例を示す回路図、第３図はこの考案の第三実施
例を示す回路図、第４図は第１図に示す実施例の
各部の波形を示すタイムチヤート、第５図は従来
のコンバータ回路を示す回路図である。
図において、１：外部交流電源、２：ダイオー
ド整流回路、３，３１：インバータ、４：平滑コ
ンデンサ、７：抵抗器、８：リレーの接点、９：
マイクロコンピユータ、１２：負特性サーミスタ
、である。なお、図中、同一符号及び同一記号は
、同一または相当部分を示す。
Fig. 1 is a circuit diagram showing a converter circuit according to the first embodiment of this invention, Fig. 2 is a circuit diagram showing a second embodiment of this invention, and Fig. 3 is a circuit diagram showing a third embodiment of this invention. 4 is a time chart showing waveforms of various parts of the embodiment shown in FIG. 1, and FIG. 5 is a circuit diagram showing a conventional converter circuit. In the figure, 1: external AC power supply, 2: diode rectifier circuit, 3, 31: inverter, 4: smoothing capacitor, 7: resistor, 8: relay contact, 9:
Microcomputer 12: Negative characteristic thermistor. In addition, in the figures, the same reference numerals and symbols indicate the same or equivalent parts.
Claims (1)
行うダイオード整流回路と、前記ダイオード整流
回路からの整流出力の平滑を行う平滑コンデンサ
とからなるコンバータ回路において、 ダイオード整流回路の入力側に接続された抵抗
器とリレーの接点の並列回路と、前記外部交流電
源の投入時に前記リレーの接点の閉動作を遅延さ
せる時限手段からなる突入電流防止回路を備えた
ことを特徴とするコンバータ回路。 (2) 前記突入電流防止回路の時限手段は、サー
ミスタを用いたことを特徴とする実用新案登録請
求の範囲第１項記載のコンバータ回路。 (3) 前記サーミスタは、負特性サーミスタを用
いたことを特徴とする実用新案登録請求の範囲第
２項記載のコンバータ回路。 (4) 前記サーミスタは、臨界温度サーミスタを
用いたことを特徴とする実用新案登録請求の範囲
第２項記載のコンバータ回路。 (5) 前記突入電流防止回路の時限手段は、マイ
クロコンピユータからなることを特徴とする実用
新案登録請求の範囲第１項記載のコンバータ回路
。 (6) 前記突入電流防止回路の時限手段は、時定
数回路からなることを特徴とする実用新案登録請
求の範囲第１項記載のコンバータ回路。[Claims for Utility Model Registration] (1) In a converter circuit consisting of a diode rectifier circuit that rectifies alternating current supplied from an external AC power source and a smoothing capacitor that smoothes the rectified output from the diode rectifier circuit, A rush current prevention circuit comprising a parallel circuit of a resistor and a relay contact connected to the input side of the rectifier circuit, and a timer for delaying the closing operation of the relay contact when the external AC power source is turned on. Characteristic converter circuit. (2) The converter circuit according to claim 1, wherein the time limit means of the inrush current prevention circuit uses a thermistor. (3) The converter circuit according to claim 2, wherein the thermistor is a negative characteristic thermistor. (4) The converter circuit according to claim 2, wherein the thermistor is a critical temperature thermistor. (5) The converter circuit according to claim 1, wherein the time limit means of the inrush current prevention circuit comprises a microcomputer. (6) The converter circuit according to claim 1, wherein the time limit means of the inrush current prevention circuit comprises a time constant circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1731587U JPS63127288U (en) | 1987-02-09 | 1987-02-09 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1731587U JPS63127288U (en) | 1987-02-09 | 1987-02-09 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63127288U true JPS63127288U (en) | 1988-08-19 |
Family
ID=30809961
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1731587U Pending JPS63127288U (en) | 1987-02-09 | 1987-02-09 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63127288U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58212369A (en) * | 1982-05-31 | 1983-12-10 | Matsushita Electric Works Ltd | Converter circuit |
-
1987
- 1987-02-09 JP JP1731587U patent/JPS63127288U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58212369A (en) * | 1982-05-31 | 1983-12-10 | Matsushita Electric Works Ltd | Converter circuit |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS63127288U (en) | ||
| JPS6358899U (en) | ||
| JPS62161550U (en) | ||
| JPS61180593U (en) | ||
| JPS62107591U (en) | ||
| JPS6214983U (en) | ||
| JPS63172289U (en) | ||
| JPH0196784U (en) | ||
| JPH03112031U (en) | ||
| JPS62195388U (en) | ||
| JPS6329341U (en) | ||
| JPS6341358U (en) | ||
| JPH0246297U (en) | ||
| JPH0370093U (en) | ||
| JPS635511U (en) | ||
| JPS61169486U (en) | ||
| JPS6390979U (en) | ||
| JPS6377485U (en) | ||
| JPH0340887U (en) | ||
| JPS6430686U (en) | ||
| JPS5928290U (en) | inverter circuit | |
| JPH0297892U (en) | ||
| JPS6420087U (en) | ||
| JPS6077289U (en) | Switching type DC power supply | |
| JPS62177245U (en) |