JPH079590Y2 - Rectifying and smoothing circuit - Google Patents
Rectifying and smoothing circuitInfo
- Publication number
- JPH079590Y2 JPH079590Y2 JP1189190U JP1189190U JPH079590Y2 JP H079590 Y2 JPH079590 Y2 JP H079590Y2 JP 1189190 U JP1189190 U JP 1189190U JP 1189190 U JP1189190 U JP 1189190U JP H079590 Y2 JPH079590 Y2 JP H079590Y2
- Authority
- JP
- Japan
- Prior art keywords
- rectifying
- coil
- capacitor
- smoothing circuit
- current
- 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.)
- Expired - Lifetime
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Description
【考案の詳細な説明】 ［産業上の利用分野］ 本考案は、電気機器の整流平滑回路に関する。DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a rectifying and smoothing circuit for electric equipment.
［従来の技術］ 第４図に示すとおり、整流平滑回路４は、入力電源１か
らの交流電圧ｖを整流する整流器２と、整流された電圧
を平滑するチョークコイルCH0とコンデンサC0からなるL
C回路とから構成され、直流電圧V0を出力する。[Prior Art] As shown in FIG. 4, the rectifying / smoothing circuit 4 includes a rectifier 2 that rectifies the AC voltage v from the input power supply 1, a choke coil CH 0 that smoothes the rectified voltage, and a capacitor C 0. L
It is composed of a C circuit and outputs a DC voltage V 0 .
［考案が解決しようとする課題］ しかしながら、従来の整流平滑回路では、第５図（ｃ）
のように、出力電圧V0がリブルの少ない直流電圧にする
ため、コンデンサC0の容量の値は、大きくせざるを得な
い。この結果、第５図（ｂ）に示されているように、コ
ンデンサC0の充電電流がiCが大きくなり、波高率の大き
い入力電流i0が交流電圧波形の90°ならびに270°の位
相に流れる。それ故に、入力電力（V0×i0）の力率も低
下する。このことは、電源の短絡容量を増大しておく必
要があり、入力電源用電線を太くする必要が生じるなど
不経済的なことに加え、電源に第3,第5,第７高調波電流
が乗り、交流電圧波形の高調波歪の原因となり、他の電
気機器に悪影響を及ぼす。[Problems to be Solved by the Invention] However, in the conventional rectifying and smoothing circuit, FIG.
As described above, in order to set the output voltage V 0 to a DC voltage with less ribbles, the capacitance value of the capacitor C 0 must be increased. As a result, as shown in FIG. 5 (b), the charging current of the capacitor C 0 increases i C , and the input current i 0 having a large crest factor becomes the phase of the AC voltage waveform at 90 ° and 270 °. Flow to. Therefore, the power factor of the input power (V 0 × i 0 ) also decreases. This is uneconomical because it is necessary to increase the short-circuit capacity of the power supply, and it is necessary to make the input power supply wire thicker. In addition to this, the power supply is subject to the 3rd, 5th, and 7th harmonic currents. Riding, causing harmonic distortion of the AC voltage waveform and adversely affecting other electrical equipment.
そこで、本考案の技術的課題は、上記欠点に鑑み、コン
デンサの突入電流の尖頭値（ピーク値）を小さくし、入
力電流の波高率、直流電圧のリブルを小さくし、入力力
率を改善し、ひいては高調波電流を低減し、整流回路か
ら発生する高調波を低減する整流平滑回路を提供するこ
とである。In view of the above drawbacks, the technical problem of the present invention is to reduce the peak value (peak value) of the inrush current of the capacitor, reduce the crest factor of the input current and the ribble of the DC voltage, and improve the input power factor. Then, by extension, it is to provide a rectifying and smoothing circuit that reduces the harmonic current and the harmonics generated from the rectifier circuit.
［課題を解決するための手段］ 本考案によれば、交流を整流し、平滑な直流出力を得る
整流回路において、交流電源の周波数で共振するコイル
と共振用コンデンサならびに前記コイルに複数のタップ
を設け、該各タップからダイオードを介して平滑コンデ
ンサが接続されていることを特徴とする整流平滑回路が
得られる。[Means for Solving the Problems] According to the present invention, in a rectifying circuit that rectifies an alternating current to obtain a smooth direct current output, a coil that resonates at a frequency of an alternating current power source, a resonance capacitor, and a plurality of taps on the coil are provided. A rectifying / smoothing circuit is provided which is provided with a smoothing capacitor connected from each tap through a diode.
［考案の構成］ 本考案は、複数のタップがついたコイルと、ダイオー
ド、共振用コンデンサと平滑用コンデンサとから構成さ
れ、コイルの途中から出たタップはダイオードを介して
平滑用コンデンサに接続され、末端のタップは前記平滑
用コンデンサに比べて小さい容量の共振用コンデンサに
接続され、コイルと共振用コンデンサの共振周波数が入
力交流電源の周波数付近になるように各々の定数を設定
したことを特徴とする。[Constitution of the Invention] The present invention is composed of a coil with a plurality of taps, a diode, a resonance capacitor and a smoothing capacitor, and a tap coming out of the coil is connected to the smoothing capacitor via the diode. The end taps are connected to a resonance capacitor having a smaller capacity than the smoothing capacitor, and each constant is set so that the resonance frequency of the coil and the resonance capacitor is near the frequency of the input AC power supply. And
［実施例］ 第１図に、本考案の整流平滑回路の一実施例を示す。[Embodiment] FIG. 1 shows an embodiment of the rectifying / smoothing circuit of the present invention.
交流入力電源１から入力された交流電圧v0は、コイルCH
1に入力される。コイルCH1、共振用コンデンサC1とで共
振し、平滑コンデンサC2にコイルの中間タップからダイ
オードを介し電流i1，i2が分流する。コイルCH1とそれ
に接続されたコンデンサC1の定数は、コイルCH1のイン
ダクタンスの最大値L3とコンデンサC1の共振周波数f1が
交流入力電源１の周波数f0に近くなるように設定する。The AC voltage v 0 input from the AC input power supply 1 is the coil CH
Entered in 1 . The coil CH 1 and the resonance capacitor C 1 resonate, and the currents i 1 and i 2 are shunted from the intermediate tap of the coil to the smoothing capacitor C 2 via the diode. Constant of the capacitor C 1 connected thereto a coil CH 1 is set so that the resonance frequency f 1 of the maximum value L 3 and capacitor C 1 of the inductance of the coil CH 1 is close to the frequency f 0 of the AC input power supply 1 .
コイルCH1のタップは、コンデンサC1に接続された末端
タップを含めて２つ以上とする。The coil CH 1 has two or more taps including the end tap connected to the capacitor C 1 .
実施例では、タップが３つであり、この時のL1，L2，L3
のインダクタンスの比は［L1，L2，L3＝1:2:4］が適し
ている。In the embodiment, there are three taps, and L 1 , L 2 , and L 3 at this time
A suitable inductance ratio is [L 1 , L 2 , L 3 = 1: 2: 4].
C2の値は、リブルを小さくすることが出来る容量まで大
きくすることが出来る。The value of C 2 can be increased to a capacity that can reduce the ribble.
第３図に第２図の整流平滑回路の入力電圧v0、入力電流
i0及び出力電圧V0の波形を示す。出力電圧V0にはリブル
は少なくなり、CH1とコンデンサC1とが共振した電流
i1，i2が流れるため、入力電流i0の尖頭値を小さくする
ことができる。Fig. 3 shows the input voltage v 0 and the input current of the rectifying and smoothing circuit of Fig. 2.
The waveforms of i 0 and the output voltage V 0 are shown. The output voltage V 0 has less ribbles, and the current at which CH 1 and capacitor C 1 resonated.
Since i 1 and i 2 flow, the peak value of the input current i 0 can be reduced.
従来の第４図の回路では、基本波に対する第３高調波電
流の割合は70％であり、第５高調波電流では32％である
が、本考案によれば、第３高調波電流は30％、第５高調
波電流が15％に改善される。In the conventional circuit shown in FIG. 4, the ratio of the third harmonic current to the fundamental wave is 70% and the ratio of the fifth harmonic current is 32%, but according to the present invention, the third harmonic current is 30%. %, The fifth harmonic current is improved to 15%.
また入力力率も従来の第４図の回路では、0.75であるが
本考案の回路では0.95に改善される。The input power factor is 0.75 in the conventional circuit of FIG. 4, but is improved to 0.95 in the circuit of the present invention.
第２図に、本考案の他の実施例の倍電圧整流平滑回路５
が示されている。D3，D4，D5，D6は、第１図の実施例に
おけるダイオードD1，D2の役割をする。C3は共振用コン
デンサでコイルCH2とで共振回路を構成し、平滑用コン
デンサD4，D5にコイルCH2の中間タップからダイオード
を介し分流電流i3，i4，i5，i6が流れる。FIG. 2 shows a voltage doubler rectifying / smoothing circuit 5 according to another embodiment of the present invention.
It is shown. D 3, D 4, D 5 , D 6 serves diodes D 1, D 2 in the example of Figure 1. C 3 constitutes a resonance circuit with the coil CH 2 at resonance capacitor, a smoothing capacitor D 4, D 5 shunted through the diode from the center tap of coil CH 2 to the current i 3, i 4, i 5 , i 6 Flows.
交流入力電圧v0が正の時は、CH2，D3を介して分流電流i
3と、CH2，D4を介して分流電流i4とがコンデンサC4に流
れる。交流入力電圧v0が負の時は、コンデンサC5，D5を
介して分流電流i5と、コンデンサC5，C6を介して分流電
流i6とが流れる。この結果、入力電圧v0の２倍の電圧を
整流平滑する。When the AC input voltage v 0 is positive, the shunt current i flows through CH 2 and D 3.
3, and the shunt current i 4 flows through the capacitor C 4 via CH 2 and D 4 . When the AC input voltage v 0 is negative, a shunt current i 5 flows through the capacitors C 5 and D 5, and a shunt current i 6 flows through the capacitors C 5 and C 6 . As a result, the voltage twice the input voltage v 0 is rectified and smoothed.
従って、出力電圧V0にはリブルが少なくなり、入力電流
i0の尖頭値を小さくすることができる。Therefore, the output voltage V 0 has less ribbles and the input current
The peak value of i 0 can be reduced.
第１図では、２つのダイオード（D1,D2）を介して、イ
ンダクタンスL1とL2との差によって、入力突入電流が位
相の異なる２つの電流に分割されるので入力電流の尖頭
値を小さくでき、電流高調波が低減できる。In Fig. 1, the input inrush current is divided into two currents with different phases due to the difference between the inductances L1 and L2 via the two diodes (D1, D2), so the peak value of the input current can be reduced. , Current harmonics can be reduced.
［考案の効果］ 以上述べたように、本考案によれば、入力電流の尖頭値
が小さく高調波電流の発生が低減でき、入力力率が良
い、小型の整流平滑回路を提供することが可能となる。[Effects of the Invention] As described above, according to the present invention, it is possible to provide a small rectifying and smoothing circuit having a small peak value of the input current, reducing the generation of harmonic current, and having a good input power factor. It will be possible.
第１図は本考案の一実施例の整流平滑回路図、第２図は
本考案の他の実施例の整流平滑回路図、第３図（ａ）は
第２図の回路の入力電圧v0、第３図（ｂ）は入力電流
i0、第３図（ｃ）は直流出力電圧V0の波形を示す図、第
４図は従来の整流平滑回路図、第５図（ａ）は第４図の
回路の入力電圧v0、第５図（ｂ）は入力電流i0、第５図
（ｃ）は直流出力電圧V0の波形を示す図である。 １…交流入力電源、２…整流器、３…本考案の一実施例
の整流平滑回路、４…従来の整流平滑回路、５…本考案
の整流平滑回路。1 is a rectifying / smoothing circuit diagram of an embodiment of the present invention, FIG. 2 is a rectifying / smoothing circuit diagram of another embodiment of the present invention, and FIG. 3 (a) is an input voltage v 0 of the circuit of FIG. , Fig. 3 (b) shows the input current
i 0 , FIG. 3 (c) is a diagram showing the waveform of the DC output voltage V 0 , FIG. 4 is a conventional rectifying / smoothing circuit diagram, and FIG. 5 (a) is an input voltage v 0 of the circuit of FIG. FIG. 5B is a diagram showing the waveform of the input current i 0 , and FIG. 5C is a diagram showing the waveform of the DC output voltage V 0 . DESCRIPTION OF SYMBOLS 1 ... AC input power supply, 2 ... Rectifier, 3 ... Rectifying / smoothing circuit of one Example of this invention, 4 ... Conventional rectifying / smoothing circuit, 5 ... Rectifying / smoothing circuit of this invention.
───────────────────────────────────────────────────── フロントページの続き (72)考案者 阿部 実 宮城県仙台市太白区太子堂21番１号 株式 会社トーキン内 (72)考案者 三田村 紘一 宮城県仙台市青葉区国見ケ丘５丁目150― 231 (72)考案者 ▲高▼橋 宏郎 宮城県仙台市泉区寺岡４丁目３―32 (72)考案者 池原 満雄 宮城県仙台市泉区南光台６丁目６番32号 (72)考案者 深沢 芳雄 宮城県仙台市泉区住吉台東２丁目６番16号 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Minoru Abe, 21-1 Taishi-do, Taichiro-ku, Sendai-shi, Miyagi Prefecture Tokin Co., Ltd. (72) Koichi Mitamura, Kunimigaoka 5-chome, Aoba-ku, Sendai-shi, Miyagi 150-231 (72) ) Inventor ▲ Taka ▼ Hiro Hashi 4-3-32 Teraoka, Izumi-ku, Sendai-shi, Miyagi 72-72 (72) Mitsuo Ikehara 6-32, Nankodai, Izumi-ku, Sendai-shi, Miyagi (72) Creator Yoshio Fukasawa Sendai, Miyagi 2-6-16, Sumiyoshidaito, Izumi-ku, Yokohama-shi
Claims (3)
平滑な直流出力を得る整流回路において、交流電源に、
電源と周波数と共振するコイルと共振用コンデンサを直
列に接続するとともに、前記コイルに設けた中間タップ
と平滑コンデンサをダイオードを介し接続したことを特
徴とする整流平滑回路。1. A rectifier circuit for rectifying alternating current to obtain a smooth direct current output by a coil and a capacitor, wherein
A rectifying / smoothing circuit characterized in that a coil that resonates with a power supply and a frequency and a resonance capacitor are connected in series, and an intermediate tap provided on the coil and a smoothing capacitor are connected via a diode.
て、前記コイルに複数個の中間タップを設け、各中間タ
ップと平滑コンデンサをそれぞれダイオードを介して接
続したことを特徴とする整流平滑回路。2. The rectifying / smoothing circuit according to claim 1, wherein the coil is provided with a plurality of intermediate taps, and each intermediate tap and a smoothing capacitor are connected via a diode.
て、前記コイルに２個の中間タップを設け、コイルの電
源に接続される側から各タップのインダクタンスが1:2:
4の比であることを特徴とする整流平滑回路。3. The rectifying / smoothing circuit according to claim 2, wherein the coil is provided with two intermediate taps, and the inductance of each tap is 1: 2 from the side connected to the power source of the coil.
A rectifying and smoothing circuit characterized by a ratio of 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1189190U JPH079590Y2 (en) | 1990-02-13 | 1990-02-13 | Rectifying and smoothing circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1189190U JPH079590Y2 (en) | 1990-02-13 | 1990-02-13 | Rectifying and smoothing circuit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03104093U JPH03104093U (en) | 1991-10-29 |
| JPH079590Y2 true JPH079590Y2 (en) | 1995-03-06 |
Family
ID=31515398
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1189190U Expired - Lifetime JPH079590Y2 (en) | 1990-02-13 | 1990-02-13 | Rectifying and smoothing circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH079590Y2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101677784B1 (en) * | 2012-09-05 | 2016-11-18 | 엘에스산전 주식회사 | Regenarative inverter device and inverter device using power cell unit |
| EP3087660B1 (en) | 2013-12-12 | 2018-09-19 | The Ohio State Innovation Foundation | Harmonic harvester for improved rf-to-dc rectifying efficiency |
-
1990
- 1990-02-13 JP JP1189190U patent/JPH079590Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH03104093U (en) | 1991-10-29 |
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