JPS63190562A - Voltage multiplying rectifier - Google Patents
Voltage multiplying rectifierInfo
- Publication number
- JPS63190562A JPS63190562A JP1984687A JP1984687A JPS63190562A JP S63190562 A JPS63190562 A JP S63190562A JP 1984687 A JP1984687 A JP 1984687A JP 1984687 A JP1984687 A JP 1984687A JP S63190562 A JPS63190562 A JP S63190562A
- Authority
- JP
- Japan
- Prior art keywords
- voltage
- mosfets
- voltage multiplying
- capacitors
- multiplying rectifier
- 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 abstract description 17
- 238000001514 detection method Methods 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 5
- 230000003071 parasitic effect Effects 0.000 description 4
- 230000020169 heat generation Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
Landscapes
- Rectifiers (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は倍電圧整流回路に係り、特に整流時の電圧降下
が小さく損失の小さい、シ之がって低電圧の整流に適し
、さらに小形化のできる倍電圧整流回路に関する。[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a voltage doubler rectifier circuit, which has a low voltage drop during rectification and low loss, and is therefore suitable for low voltage rectification, and is also compact. This invention relates to a voltage doubler rectifier circuit that can be converted into a voltage doubler.
従来この種の倍電圧整流回路は、第３図に示すように２
個の整流ダイオードとコンデンｔを使用している。図に
おいて、ｌは交流電源、２，３はコンデンサ、４は直流
負荷、１９．２０は整流ダイオードである。交流電源ｌ
の極性が、整流ダイオード１９のアノードに正の電圧が
印加される方向のときはコンデンサ２が交流電源電圧の
ピーク値近くまで充電される。逆の極性ではコンデンサ
３が同様に充電され結果として直流負荷４には、コンデ
ンサ２と３の電圧の和、すなわち交流電源電圧の約２倍
の電圧が印加される。Conventionally, this type of voltage doubler rectifier circuit has two
It uses several rectifier diodes and a capacitor. In the figure, l is an AC power supply, 2 and 3 are capacitors, 4 is a DC load, and 19.20 is a rectifier diode. AC power supply l
When the polarity is such that a positive voltage is applied to the anode of the rectifier diode 19, the capacitor 2 is charged to near the peak value of the AC power supply voltage. In the opposite polarity, capacitor 3 is charged in the same way, and as a result, a voltage that is the sum of the voltages of capacitors 2 and 3, that is, approximately twice the AC power supply voltage, is applied to DC load 4.
上述した従来の回路では、このように整流ダイオードを
使用しているので約１ｖの電圧降下を生じ、ｌＡ４［シ
約ＩＷの損失があるので大電流の整流では放熱を考慮す
る必要かあシ、まな、前記電圧降下のため低電圧の交流
電源の整流には不適当であった。In the conventional circuit described above, since a rectifier diode is used in this way, a voltage drop of about 1V occurs, and there is a loss of about 1A4 [IW], so it is necessary to consider heat radiation when rectifying a large current. However, due to the voltage drop, it was unsuitable for rectifying a low-voltage AC power source.
本発明による倍電圧整流回路は、直流接続した２個のＭ
ＯＳＦＥＴ と２個のコンデンサの接続点間に交流電源
を接続し、それぞれを並列接伏した点を直流出力として
基本回路とし、前記ＭＯＳＦＥＴのオンオフ金コンデン
サへの充電電流を検出して行なうための電流検出手段と
、制御回路を有している。The voltage doubler rectifier circuit according to the present invention has two M
An AC power supply is connected between the connection points of the OSFET and two capacitors, and the point where each is grounded in parallel is used as a DC output to form a basic circuit, and the current for detecting and performing the charging current to the on-off gold capacitor of the MOSFET is It has a detection means and a control circuit.
次に本発明について図面全参照して説明する。 Next, the present invention will be explained with reference to all the drawings.
第１図は本発明の一実施例を示す回路図であり、図にお
いて、１は交流電源、２，３はコンデンサ、４は直流負
荷５ａ、５ｂ、６ａ、６ｂはＭＯＳＦＥＴでメク、ダイ
オードはＭＯＳＦＥＴの寄生ダイオードを示している。FIG. 1 is a circuit diagram showing an embodiment of the present invention. In the figure, 1 is an AC power supply, 2 and 3 are capacitors, 4 is a DC load 5a, 5b, 6a, and 6b are MOSFETs, and diodes are MOSFETs. shows a parasitic diode.
７，８は抵抗、９ ａ ｔ ９ ｂ 、 １ｏａ１１０
ｂはホトカプラを構成するホトトランジスタと発光ダイ
オード、１１．１２は直流電源、１３゜１４．１５．１
６は抵抗、１７は演算増幅器である。いま交流電源ｌの
極性がＭ（ＪＳＦＥＴ５ａのソース電極に正の電圧が印
加される方向のとき、寄生ダイオード５ｂを通じてコン
デンサ２が充電され、逆の極性では同様に寄生ダイオー
ド６ｂを通じてコンデンサー３が充電される。この過程
で、電流検出抵抗１３の電圧降下を抵抗１４．１５の比
の倍率で演算増幅器１７で増幅するので、コンデンサ２
ｆｔ充電している極性では発光ダイオード９ｂが点灯し
、ホトトランジスタ９ａｉオンするのでム４０ＳＦＥＴ
５ａはオンし、充電は寄生ダイオード５ｂから＆１Ｏ８
ＦＥＴ５ａ内部の低抵抗を通じて行なわれる。同様にし
てコンデンサ３が充電される極性においては発光ダイオ
ード１０ｂが点灯し、ホトトランジスタｌｏａがオンし
、Ｍ（ＪＳＦＥＴ６ａがオンして充電される。7 and 8 are resistances, 9 a t 9 b, 1 oa110
b is a phototransistor and light emitting diode that constitute a photocoupler, 11.12 is a DC power supply, 13° 14.15.1
6 is a resistor, and 17 is an operational amplifier. Now, when the polarity of the AC power supply l is M (in the direction in which a positive voltage is applied to the source electrode of the JSFET 5a), the capacitor 2 is charged through the parasitic diode 5b, and when the polarity is opposite, the capacitor 3 is similarly charged through the parasitic diode 6b. In this process, the operational amplifier 17 amplifies the voltage drop across the current detection resistor 13 by the ratio of the resistor 14.15, so the capacitor 2
ft In the charging polarity, the light emitting diode 9b lights up and the phototransistor 9ai turns on, so the 40SFET
5a turns on and charging starts from parasitic diode 5b &1O8
This is done through the low resistance inside the FET 5a. Similarly, in the polarity in which the capacitor 3 is charged, the light emitting diode 10b is lit, the phototransistor loa is turned on, and the M(JSFET 6a is turned on and charged).
ＭＯＳＦＥＴのオン抵抗に１０数ｍΩ以下を容易に得る
ことができるので、ＩＯＡ整流時においても電圧降下を
ｏ、ｌＶ以下にでき、これは前記整流ダイオードの約１
７’１０の値であるので、電圧降下の低減による損失の
減少とそれに伴なう発熱の減が得られる。尚ΔｆＯ８Ｆ
ＥＴは並列接ｄが容易にできるので大電流の整流にも適
している。Since the on-resistance of the MOSFET can be easily obtained to be less than 10 mΩ, the voltage drop can be reduced to less than 1 V even during IOA rectification, which is about 1 volt or less than that of the rectifier diode.
Since the value is 7'10, a reduction in loss due to a reduction in voltage drop and a corresponding reduction in heat generation can be obtained. Furthermore, ΔfO8F
Since ET can be easily connected in parallel, it is also suitable for rectifying large currents.
第２図は本発明の他の実施例を示す回路図であシ、全体
の構成は第一図と同様であり、第２図は１個のＭＯＳＦ
ＥＴ と対をなす駆動部を示しである。FIG. 2 is a circuit diagram showing another embodiment of the present invention, and the overall configuration is the same as that in FIG. 1.
A driving unit paired with ET is shown.
図において、９はホトダイオードであｆｉ、ＭＯＳＦＥ
Ｔ５ａのゲートの最小ゲート駆動電圧以上の電圧が得ら
れるように直列接続する。発光ダイオード８が発光する
と各ホトダイオード９は光起電力を生じＭＯＳＦＥＴＳ
ａをオンするので、第１図と同様に動作する。In the figure, 9 is a photodiode fi, a MOSFE
They are connected in series so that a voltage higher than the minimum gate drive voltage of the gate of T5a can be obtained. When the light emitting diode 8 emits light, each photodiode 9 generates a photovoltaic force and the MOSFETs
Since a is turned on, the operation is the same as in FIG.
以上説明し念ように、本発明は倍電圧整流回路にＭＯＳ
ＦＥＴ ｉ使用することにより、その電圧降下を小さく
し低損失化し発熱を小さくシ、小形化できるだけでなく
、低電圧の整流に適した倍電圧整流回路を提供できる利
点がある。As explained above, the present invention uses MOS in the voltage doubler rectifier circuit.
By using FET i, there are advantages that not only can the voltage drop be reduced, loss can be reduced, heat generation can be reduced, and size can be reduced, but also a voltage doubler rectifier circuit suitable for rectifying a low voltage can be provided.
第１図は本発明の一実施領を示す回路図、第２図は他の
実施例を示す回路図、第３図は従来例を示す回路図であ
る。
ｌ・・・・・・交流電源、２，３・・・・・・コンデン
サ、４・・・・・・＠流負荷、５ ａ 、 ５ ｂ 、
６ ａ 、 ６ ｂ−−−−−−ＭＯＳ −ＦＥＴ、
７ 、８−・・・−抵抗、９ ａ 、 ９ ｂ 、
ｌ Ｏａ 、 ｌＯｂ・・・・・・ホトカプラを構成す
るホトトランジスタと発光ダイオード、１１，１２・・
・・・・直流電源、１３゜１４．１５．１６・・・・・
・抵抗、１７・・・・・・演算増幅器、１８・・・・・
・ホトダイオード、１９．２０・・・・・・整流ダイオ
ード。
° ｂゝ
代理人 升埋十 内 原 −
日FIG. 1 is a circuit diagram showing one embodiment of the present invention, FIG. 2 is a circuit diagram showing another embodiment, and FIG. 3 is a circuit diagram showing a conventional example. l... AC power supply, 2, 3... Capacitor, 4... @ current load, 5 a, 5 b,
6a, 6b---MOS-FET,
7, 8-...-resistance, 9a, 9b,
lOa, lOb...Phototransistor and light emitting diode forming a photocoupler, 11, 12...
...DC power supply, 13゜14.15.16...
・Resistor, 17... Operational amplifier, 18...
・Photodiode, 19.20... Rectifier diode. ° b.Agent
Claims (1)
接続点間に交流電源を接続し、他端を並列接続して直流
出力端とし、前記コンデンサの充電電流検出手段と、該
検出手段により前記ＭＯＳＦＥＴをそれぞれ充電時のみ
オンすることを特徴とする倍電圧整流回路。An AC power source is connected between the connection points of the MOSFETs connected in series and the capacitors connected in series, and the other end is connected in parallel to serve as a DC output terminal, and the charging current detection means for the capacitor and the detection means charge the MOSFETs respectively. A voltage doubler rectifier circuit that turns on only when
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1984687A JPS63190562A (en) | 1987-01-29 | 1987-01-29 | Voltage multiplying rectifier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1984687A JPS63190562A (en) | 1987-01-29 | 1987-01-29 | Voltage multiplying rectifier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63190562A true JPS63190562A (en) | 1988-08-08 |
Family
ID=12010619
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1984687A Pending JPS63190562A (en) | 1987-01-29 | 1987-01-29 | Voltage multiplying rectifier |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63190562A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0816955A1 (en) * | 1996-06-26 | 1998-01-07 | Ronda Ag | Electronic circuit and timepiece containing such a circuit |
| EP0848842B2 (en) † | 1995-09-07 | 2006-04-19 | International S.A. Richemont | Timepiece movement |
| CN102110550A (en) * | 2010-12-29 | 2011-06-29 | 浙江南瑞科技有限公司 | Intelligent controller of frame-type circuit breaker |
| 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 |
| US11101728B2 (en) | 2017-06-26 | 2021-08-24 | Mitsubishi Electric Corporation | Power converting apparatus, motor drive control apparatus, blower, compressor, and air conditioner |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5361026A (en) * | 1976-11-12 | 1978-06-01 | Hitachi Ltd | Power supply circuit |
| JPS573579A (en) * | 1980-06-09 | 1982-01-09 | Hitachi Ltd | Electric-power supply device |
-
1987
- 1987-01-29 JP JP1984687A patent/JPS63190562A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5361026A (en) * | 1976-11-12 | 1978-06-01 | Hitachi Ltd | Power supply circuit |
| JPS573579A (en) * | 1980-06-09 | 1982-01-09 | Hitachi Ltd | Electric-power supply device |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0848842B2 (en) † | 1995-09-07 | 2006-04-19 | International S.A. Richemont | Timepiece movement |
| EP0816955A1 (en) * | 1996-06-26 | 1998-01-07 | Ronda Ag | Electronic circuit and timepiece containing such a circuit |
| US6194878B1 (en) | 1997-06-25 | 2001-02-27 | Conseils Et Manufactures Vlg Sa | Electronic speed control circuit |
| US6208119B1 (en) | 1997-06-25 | 2001-03-27 | Conseils Et Manufactures Vlg Sa | Electronic speed-control circuit |
| CN102110550A (en) * | 2010-12-29 | 2011-06-29 | 浙江南瑞科技有限公司 | Intelligent controller of frame-type circuit breaker |
| 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 |
| US11101728B2 (en) | 2017-06-26 | 2021-08-24 | Mitsubishi Electric Corporation | Power converting apparatus, motor drive control apparatus, blower, compressor, and air conditioner |
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