JPS63190561A - Rectifier circuit - Google Patents
Rectifier circuitInfo
- Publication number
- JPS63190561A JPS63190561A JP62019841A JP1984187A JPS63190561A JP S63190561 A JPS63190561 A JP S63190561A JP 62019841 A JP62019841 A JP 62019841A JP 1984187 A JP1984187 A JP 1984187A JP S63190561 A JPS63190561 A JP S63190561A
- Authority
- JP
- Japan
- Prior art keywords
- rectifier circuit
- mosfets
- load
- transistors
- photo
- 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
- 238000010586 diagram Methods 0.000 description 6
- 239000003990 capacitor Substances 0.000 description 4
- 238000001514 detection method Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS 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
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/02—Conversion of ac power input into dc power output without possibility of reversal
- H02M7/04—Conversion of ac power input into dc power output without possibility of reversal by static converters
- H02M7/12—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M7/21—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
- H02M7/217—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
- H02M7/219—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only in a bridge configuration
- H02M7/2195—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only in a bridge configuration the switches being synchronously commutated at the same frequency of the AC input voltage
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は整流回路に係シ、特に動作時の電圧降下、損失
が小さく、し九がって発熱が小さいので小形化の可能な
、ｗｅ、低電圧降下のため低電圧の整流に適し九整流回
路に関する。[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to rectifier circuits, and in particular, rectifier circuits that have small voltage drops and losses during operation, and which can be made smaller because they generate less heat. Regarding nine rectifier circuits, suitable for low voltage rectification due to their low voltage drop.
従来、交流から直流を得るために使用される整流回路は
、４個の整流ダイオードをフリッジ接続した全波整流回
路が一役的である。Conventionally, the rectifier circuit used to obtain direct current from alternating current is a full-wave rectifier circuit in which four rectifier diodes are connected in a bridge.
ところが、このようなフリッジ回路は交流のそれぞれの
手渡の整流時に、整流ダイオードが２個直列接続される
ので電圧降下、損失が大きくなる。However, in such a flip circuit, two rectifier diodes are connected in series when rectifying each AC current, resulting in large voltage drops and losses.
このｔめ発熱が大きい欠点と、例えば数しの交流の整流
には、電圧降下が大きすぎる欠点があり乏。This method has the drawback of generating a large amount of heat, and, for example, rectifying a few alternating currents has the drawback of causing a large voltage drop.
本発明の整流回路は整流素子として４個のＭＯＳＦＥＴ
と、それぞれのゲート４に勅回路を有してお９、ゲート
駆動回路は整流に寄与する２個を対で同時にオンするこ
とができるようになっている。The rectifier circuit of the present invention uses four MOSFETs as rectifier elements.
Each of the gates 4 has a control circuit 9, and the gate drive circuit is configured such that two gate drive circuits contributing to rectification can be turned on simultaneously as a pair.
次に本発明について図面を参照して説明する。 Next, the present invention will be explained with reference to the drawings.
第１図は本発明の一実施例を示す回路図である。FIG. 1 is a circuit diagram showing one embodiment of the present invention.
図において、１は交流電源、２は抵抗、３は直流負荷、
４ａ−ｄはＭＯＳＦＥＴ、５ａ−ｄは抵抗、６ａ−ｄは
ホトトランジスタ、７ａ−ｄは直流電源、Ｆ３ａ〜ｄは
６ａ〜ｄのホトトランジスタとそれぞれ対をなす発光ダ
イオードである。In the figure, 1 is an AC power supply, 2 is a resistance, 3 is a DC load,
4a-d are MOSFETs, 5a-d are resistors, 6a-d are phototransistors, 7a-d are DC power supplies, and F3a-d are light emitting diodes paired with the phototransistors 6a-d, respectively.
図に２いて、発光ダイオードの８ａ、８ｂに電流が流れ
る交流電源ｌの極性においては、ホトトランジスタ６ａ
、６ｂがオンしてＭＯＳＦＥＴ ４ ａ 。In FIG. 2, in the polarity of the AC power source l that allows current to flow through the light emitting diodes 8a and 8b, the phototransistor 6a
, 6b are turned on and MOSFET 4a is turned on.
４ｂのゲートに電圧が印加されているのでそれぞれオン
しＭＯＳＦＥＴ ４ａ ｆ、直流負荷ＭＯＳＦＥＴ４ｂ
を通じて電流が流れる。同様に発光ダイオード８ｃ。Since a voltage is applied to the gate of 4b, they are turned on, MOSFET 4a f, and DC load MOSFET 4b.
A current flows through it. Similarly, a light emitting diode 8c.
８ｄＫ電流が流れる交流電源ｌの極性ではＭ（ＪＳ−Ｆ
ＥＴ ４ｃ、４ｄを通じて電流が流れる。このときＭＯ
ＳＦＥＴは耐圧にもよるが、１０数ｍｒｌの抵抗値のも
のは容易に得られるので電圧降下はＩＯＡのとき０．１
ｖ程度になる。The polarity of AC power supply l through which 8 dK current flows is M (JS-F
Current flows through ET 4c, 4d. At this time M.O.
Although it depends on the withstand voltage of SFET, one with a resistance value of 10-odd mrl can be easily obtained, so the voltage drop is 0.1 at IOA.
It will be about v.
一万、従来の整流ダイオードはｌｖ程度でめシこの例で
は電圧降下は１／ｌｏ１したがってＩＯＡ通電時ＫＩＷ
の損失になるので発熱の点でも有利である。10,000, the conventional rectifier diode is about LV, but in this example, the voltage drop is 1/lo1, so when the IOA is energized, the KIW
This is also advantageous in terms of heat generation.
第２図は本発明の他の実施例の回路図である。FIG. 2 is a circuit diagram of another embodiment of the present invention.
全体の構成は、第１図と同様であり、第２図は１個のＭ
ＯＳＦＥＴと、対（！ｌ−なす駆動部を示しである。The overall configuration is the same as in Fig. 1, and Fig. 2 shows one M
The OSFET and the pair (!l-) drive unit are shown.
図に、ひいて、９はホトダイオードであり、Δ１（ＪＳ
−ＦＥＴ のゲートの最小ゲート駆動電圧以上の電圧が
得られるＬう直列接続する。発光ダイオード８が発光す
ると、谷ホトダイオードは光起電力を生じＭＯＳＦＥＴ
’ｉオンするので第１図と同様に動作する。In the figure, 9 is a photodiode and Δ1(JS
- Connect in series to obtain a voltage higher than the minimum gate drive voltage of the gate of the FET. When the light emitting diode 8 emits light, the valley photodiode generates a photovoltaic force and the MOSFET
'i is turned on, so the operation is the same as in FIG.
第３図は本発明のヱ↓に他の実施例を示す図であり、図
において、第１図と同じ機能の部品は同一の符号によシ
示す。その池の部品として、１０はコンデンサ、１１は
電流検出抵抗、１２は制御回路、１３はトランジスタ、
１４は抵抗、１５は発光ダイオード、１６はホトトラン
ジスタである。FIG. 3 is a diagram showing another embodiment of the present invention, in which parts having the same functions as those in FIG. 1 are designated by the same reference numerals. As components of the pond, 10 is a capacitor, 11 is a current detection resistor, 12 is a control circuit, 13 is a transistor,
14 is a resistor, 15 is a light emitting diode, and 16 is a phototransistor.
次に第３図の動作を説明すると、直流負荷３にコンデン
サ１０が接続されている場合、第１図に示した回路では
、コンデンサｌＯの光電電圧が、交流電源ｌの゛１シ圧
より高いときにＭＯＳＦＥＴ４ａ。Next, to explain the operation of FIG. 3, when the capacitor 10 is connected to the DC load 3, in the circuit shown in FIG. Sometimes MOSFET4a.
４ｂあるいは４ｃ、４ｄがオンして逆流する場合を生ず
る。4b, 4c, and 4d may turn on, causing a reverse flow.
このため電流検出抵抗１１によりコンデンサ１０充電心
流を検出する。この充電４流はＭｏｓＦｇ’ｒ４ａ、４
ｂ、ｌ、るいは４ｃ、４ｄはそのドレインソース間に逆
並列接続された等価ダイオードを有しており、これを通
じてのものである。充電電流にＬシ抵抗１１に生じ念電
圧降下制御回路１２で増幅し、トランジスタ１３全オン
し、発光ダイオード１５を点灯する。発光ダイオード１
５はホトトランジスタ１６と対になっておシ、ホトトラ
ンジスタ１６がオンするので、第１図で説明し友ように
発光ダイオード３ａ、ｇｂあるいは逆の極性で３ｃ、３
ｄが点灯し、ＭＯＳＦＥＴ をオンし同様に動作する。Therefore, the current detection resistor 11 detects the heart current charging the capacitor 10. This four charging currents are MosFg'r4a, 4
b, l, or 4c, 4d have equivalent diodes connected in antiparallel between their drains and sources, and are connected through this. A charging current is generated in the resistor 11 and amplified by the voltage drop control circuit 12, the transistors 13 are all turned on, and the light emitting diode 15 is turned on. light emitting diode 1
5 is paired with a phototransistor 16. Since the phototransistor 16 is turned on, as explained in FIG.
d lights up, turns on the MOSFET, and operates in the same way.
以上説明したように本発明は、整流回路にＭＯＳＦＥＴ
を使用することにより、その電圧降下を小さくシ、
低損失化し、発熱を小さくし小形化できるだけでなく、
低電圧の整流に適した整流回路を提供で曇る利点がある
。As explained above, the present invention uses MOSFETs in the rectifier circuit.
By using
Not only can it reduce loss, generate less heat, and be more compact,
It has the advantage of providing a rectifier circuit suitable for low voltage rectification.
第１図は本発明の一実施例を示す図、第２図。
第３図は夫々本発明の他の実施例金示す図である。
ｌ・・・・・・交流電源、２・・・・・・抵抗、３・・
・・・・直流負荷、４ａ〜ｄ・・・・・・ＭＯＳＦＥＴ
、５ ａ〜ｄ・・・・・・抵抗、６ａ〜ａ・・・・・・
ホトトランジスタ、７ａ−ｄ・・・・・・直流電４．８
ａ〜ｄ・・・・・・発光ダイオード、９・・・・・・ホ
トダイオード、１０・・・・・・コンデンサ、１１・・
・・・・抵抗、１２・・・・・・制御回路、１３・・・
・・・トランジスタ、１４・・・・・・抵抗、１５・・
・・・・発光ダイオード、１６・・・・・・ホトトラン
ジスタ、である。
一区 −ゝ１
、代理人 弁理士 内 原 ヨ 、Ｃ
第２図FIG. 1 is a diagram showing an embodiment of the present invention, and FIG. 2 is a diagram showing an embodiment of the present invention. FIG. 3 is a diagram showing other embodiments of the present invention. l...AC power supply, 2...Resistance, 3...
...DC load, 4a-d...MOSFET
, 5 a-d...Resistance, 6a-a...
Phototransistor, 7a-d...DC current 4.8
a to d...Light emitting diode, 9...Photodiode, 10...Capacitor, 11...
...Resistance, 12...Control circuit, 13...
...Transistor, 14...Resistor, 15...
. . . Light emitting diode, 16 . . . Phototransistor. District 1-1, Agent: Yo Uchihara, Patent Attorney, C Figure 2
Claims (2)
を交流の一方の極性でオンし、もう一対を他の極性でオ
ンすることを特徴とする整流回路。(1) A rectifier circuit characterized in that a pair of MOSFETs connected to an alternating current power source are turned on by one polarity of the alternating current, and the other pair is turned on by the other polarity.
後に行なうことを特徴とする特許請求の範囲第１項記載
の整流回路。(2) The rectifier circuit according to claim 1, wherein the MOSFET pair is turned on immediately after a charging current flows.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62019841A JPS63190561A (en) | 1987-01-29 | 1987-01-29 | Rectifier circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62019841A JPS63190561A (en) | 1987-01-29 | 1987-01-29 | Rectifier circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63190561A true JPS63190561A (en) | 1988-08-08 |
Family
ID=12010491
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62019841A Pending JPS63190561A (en) | 1987-01-29 | 1987-01-29 | Rectifier circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63190561A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1364448A1 (en) * | 2001-02-02 | 2003-11-26 | Ricotec Oy | Apparatus for power transmission |
| WO2010022748A1 (en) * | 2008-08-26 | 2010-03-04 | Otis Elevator Company | Power supply module |
| JP2012085369A (en) * | 2010-10-06 | 2012-04-26 | Yutaka Denki Seisakusho:Kk | Rectifier circuit using fet bridge circuit, and method of controlling the same |
| JP2012143154A (en) * | 2012-04-12 | 2012-07-26 | Mitsubishi Electric Corp | Dc power supply, refrigeration cycle device equipped with the same, and air conditioner and refrigerator mounting the same |
-
1987
- 1987-01-29 JP JP62019841A patent/JPS63190561A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1364448A1 (en) * | 2001-02-02 | 2003-11-26 | Ricotec Oy | Apparatus for power transmission |
| WO2010022748A1 (en) * | 2008-08-26 | 2010-03-04 | Otis Elevator Company | Power supply module |
| JP2012085369A (en) * | 2010-10-06 | 2012-04-26 | Yutaka Denki Seisakusho:Kk | Rectifier circuit using fet bridge circuit, and method of controlling the same |
| JP2012143154A (en) * | 2012-04-12 | 2012-07-26 | Mitsubishi Electric Corp | Dc power supply, refrigeration cycle device equipped with the same, and air conditioner and refrigerator mounting the same |
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