JPS58141680A - Switching type dc stabilized power source - Google Patents
Switching type dc stabilized power sourceInfo
- Publication number
- JPS58141680A JPS58141680A JP57024724A JP2472482A JPS58141680A JP S58141680 A JPS58141680 A JP S58141680A JP 57024724 A JP57024724 A JP 57024724A JP 2472482 A JP2472482 A JP 2472482A JP S58141680 A JPS58141680 A JP S58141680A
- Authority
- JP
- Japan
- Prior art keywords
- transformer
- condenser
- capacitor
- diode
- circuit
- 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
Links
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
- H02M1/00—Details of apparatus for conversion
- H02M1/42—Circuits or arrangements for compensating for or adjusting power factor in converters or inverters
- H02M1/4208—Arrangements for improving power factor of AC input
-
- 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
- H02M3/00—Conversion of dc power input into dc power output
- H02M3/22—Conversion of dc power input into dc power output with intermediate conversion into ac
- H02M3/24—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters
- H02M3/28—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac
- H02M3/325—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal
- H02M3/335—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only
- H02M3/33538—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only of the forward type
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/10—Technologies improving the efficiency by using switched-mode power supplies [SMPS], i.e. efficient power electronics conversion e.g. power factor correction or reduction of losses in power supplies or efficient standby modes
Abstract
Description
【発明の詳細な説明】
本発明は交流を入力とするスイッチング式直流安定化電
源装置に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a switching type DC stabilized power supply device that receives AC input.
２、 ′
従来におけるスイッチング式直流安定化電源装置として
は第１図に示すように構成されていた。2.' A conventional switching type DC stabilized power supply device was constructed as shown in FIG.
すなわち、ムＣ電源端子１，２にダイオードのブリッジ
回路からなる整流回路３を接続し、この整流回路３の出
力にトランス４の一次巻線Ｐとスイッチングトランジス
タ６の直列回路を接続し、かつ、この直列回路と並列に
コンデンサ６と、ｉランス４の帰還巻線Ｆとダイオード
７の直列回路を接続し、トランス４の二次巻線Ｓにダイ
オード８．９、チョークコイＩｖ１０、コンデンサ１１
よりなる整流、平滑回路を接続して負荷１２に出力を供
給するようにし、コンデンサ１１の両端にパルス幅制御
回路１３を接続し、このパルス幅制御回路１３の出力を
スイッチングトランジスタ６のベースに印加するように
構成されていた。That is, a rectifier circuit 3 consisting of a diode bridge circuit is connected to the power supply terminals 1 and 2 of the MU C, and a series circuit of the primary winding P of the transformer 4 and the switching transistor 6 is connected to the output of the rectifier circuit 3, and A capacitor 6, a series circuit of the feedback winding F of the i-lance 4 and a diode 7 are connected in parallel with this series circuit, and a diode 8.9, a choke coil Iv10, and a capacitor 11 are connected to the secondary winding S of the transformer 4.
A rectifying and smoothing circuit is connected to supply the output to the load 12, a pulse width control circuit 13 is connected to both ends of the capacitor 11, and the output of this pulse width control circuit 13 is applied to the base of the switching transistor 6. was configured to do so.
このような構成よりなるスイッチング式直流安定化電源
装置はコンデンサインプット型であり、入力電圧波形の
ピーク付近でのみコンデンサ４に充電電流が流れるため
、電流波形が歪み、平均値が少ないにもかかわらず実効
値が大きく力率が悪くなるものであった。さらに、コン
デンサ４として電解コンデンサを使用するため、その実
効電流に耐える大きなサイズのコンデンサを必要とする
ものであった。The switching type DC stabilized power supply with this configuration is a capacitor input type, and since the charging current flows to the capacitor 4 only near the peak of the input voltage waveform, the current waveform is distorted and the average value is small. The effective value was large and the power factor was poor. Furthermore, since an electrolytic capacitor is used as the capacitor 4, a capacitor of a large size that can withstand the effective current is required.
従来、力率を改善するにはチョークインプ７）型整流回
路を使用する必要があり、重量の大きなチョークコイル
を使用しなければならないため、小型軽量というスイッ
チングレギュレータの特徴が損われてしまうといった欠
点があった。Conventionally, to improve the power factor, it was necessary to use a choke imp 7) type rectifier circuit, which required the use of a heavy choke coil, which impaired the characteristics of the switching regulator, which was small and lightweight. was there.
また、現在スイッチング周波数の高周波化が進んでいる
が、入力の電解コンデンサが大きな体積を占め、スイッ
チング周波数を上げてもあまり全体の体積が小さくなら
ないといった欠点があった。Furthermore, although switching frequencies are currently becoming higher, the input electrolytic capacitor occupies a large volume, and even if the switching frequency is increased, the overall volume cannot be reduced much.
本発明は以上のような従来の欠点を除去するものであり
、力率が大幅に改善され、小型軽量化が可能なスイッチ
ング式直流安定化電源装置を提供することを目的とする
ものである。The present invention eliminates the above-mentioned conventional drawbacks, and aims to provide a switching type DC stabilized power supply device that has a significantly improved power factor and can be made smaller and lighter.
上記目的を達成するために本発明は、トランスの一次巻
線よシ少ない巻数で逆極性の帰還巻線に発生する電圧で
ダイオードを通して充電されるコ巻線にエネルギーを供
給できるように接続されたダイオードとを有することを
特徴としたものである。To achieve the above object, the present invention provides a transformer with a smaller number of turns than the primary winding of the transformer, which is connected in such a way that the voltage generated in the feedback winding of opposite polarity can supply energy to the co-winding, which is charged through a diode. It is characterized by having a diode.
以下、本発明の実施例を図面第２図〜第６図により説明
する。Embodiments of the present invention will be described below with reference to FIGS. 2 to 6.
まず、第２図において、１４．１５はムＣ電源端子で、
このムＣ電源端子１４，１６にはダイオードのブリッジ
回路からなる整流回路１６が接続され、この整流回路１
６の出力にはトランス１７の一次巻線Ｐとスイッチング
トランジスタ１８の直列回路が接続され、−次巻線Ｐと
整流回路１６との接続点にはダイオード１９のカソード
が接続され、このダイオード１９のアノードと整流回路
１６の他方の出力との間にコンデンサ２ｏが接続され、
トランス１７の帰還巻線Ｆの一端はダイオード２１を通
してコンデンサ２０とダイオード１９の接続点に、帰還
巻線Ｆの他端はスイッチングトランジスタ１８のエミッ
タに接続されている。First, in Fig. 2, 14.15 is the muC power supply terminal,
A rectifier circuit 16 consisting of a bridge circuit of diodes is connected to the power supply terminals 14 and 16 of the MU C, and this rectifier circuit 1
A series circuit of the primary winding P of the transformer 17 and the switching transistor 18 is connected to the output of the transformer 6, and the cathode of the diode 19 is connected to the connection point between the negative winding P and the rectifier circuit 16. A capacitor 2o is connected between the anode and the other output of the rectifier circuit 16,
One end of the feedback winding F of the transformer 17 is connected through a diode 21 to the connection point between the capacitor 20 and the diode 19, and the other end of the feedback winding F is connected to the emitter of the switching transistor 18.
トランス１７の二次巻線Ｓにはダイオード２２゜６
ベージ
２３の整流回路、チョークコイ／Ｉ／２４とコンデンサ
２６の平滑回路を介して負荷２６が接続されるようにな
っておシ、上記コンデンサ２６の両端にはパルス幅制御
回路２７が接続され、このパルス幅制御回路２７の出力
はスイッチングトランジスタ１８のベースに接続されて
いる。A diode 22゜6 is connected to the secondary winding S of the transformer 17.
A load 26 is connected through a rectifier circuit of the page 23, a smoothing circuit of the choke coil/I/24 and a capacitor 26, and a pulse width control circuit 27 is connected to both ends of the capacitor 26. The output of this pulse width control circuit 27 is connected to the base of the switching transistor 18.
このような構成で、整流回路１６の出力電圧は第３図に
示すような全波整流波形となり、ｔｏ期間時は負荷２６
に電力を供給するが、電源装置の安定化開始電圧よシ低
くなる ｔ１期間は他から電力を供給しなければならな
い。そこでトランス１７の磁心にＩ積される励磁エネル
ギーに注目し、−次巻線Ｐより少ない巻数で極性が逆の
帰還巻線Ｆを設け、スイッチングトランジスタ１８のＯ
ＦＦ期間に発生するトランス１７の逆電圧、すなわち磁
心の励磁エネルギー分をダイオード２１を通してコンデ
ンサ２ｏに蓄積しておき、整流回路１６の出力電圧が電
源装置の安定化開始電圧よシも低くなる ｔｌの期間に
コンデンサ２ｏからエネルギーを供給することにより出
力電圧を安定にすると６ ぺ〕゛
とができる。With this configuration, the output voltage of the rectifier circuit 16 has a full-wave rectified waveform as shown in FIG.
However, during the t1 period, when the voltage is lower than the stabilization start voltage of the power supply, power must be supplied from another source. Therefore, focusing on the excitation energy I multiplied in the magnetic core of the transformer 17, a feedback winding F with a smaller number of turns and opposite polarity than the negative winding P is provided, and the switching transistor 18 is
The reverse voltage of the transformer 17 generated during the FF period, that is, the excitation energy of the magnetic core, is stored in the capacitor 2o through the diode 21, so that the output voltage of the rectifier circuit 16 is lower than the stabilization start voltage of the power supply. If the output voltage is made stable by supplying energy from the capacitor 2o during this period, 6 pages can be obtained.
第２図ではフィードフォワード型のスイッチングレギュ
レータを採用しているが、この場合安定化可能範囲は定
格電圧の一３０％＋＋１ｓ％位である。In FIG. 2, a feedforward type switching regulator is used, but in this case, the stabilization range is about 30%++1s% of the rated voltage.
また、本発明と従来のスイッチング式直流安定化電源装
置の出力に対する力率、出力に対する入力電流特性を第
４図、第６図に示し、本発明は力率が大幅に改善される
とともに出力が大きくなるにつれて入力電流が大幅に低
減されていることが明らかである。Furthermore, the power factor with respect to the output and the input current characteristics with respect to the output of the present invention and the conventional switching type DC stabilized power supply device are shown in Figs. 4 and 6. It is clear that the input current is significantly reduced as the size increases.
第６図に示す実施例はトランス１７の二次巻線Ｓの極性
を逆としてフライバック型のスイッチングレギュレータ
としたもので、安定化範囲は一７０チ、±２０ｑＩＤと
できるため、コンデンサ２０に蓄積させるエネルギーは
わずかでよく、コンデンサ２０として電解コンデンサを
用いても容量も小さくてよい。入力側の電解コンデンサ
が小さいとスイッチング周波数が大きくなればなる程全
体のサイアζ゛も減少し安価になる。The embodiment shown in FIG. 6 is a flyback type switching regulator in which the polarity of the secondary winding S of the transformer 17 is reversed, and the stabilization range can be 170 inches, ±20qID, so that the voltage is accumulated in the capacitor 20. Only a small amount of energy is required to generate the capacitor 20, and even if an electrolytic capacitor is used as the capacitor 20, the capacitance may be small. If the electrolytic capacitor on the input side is small, the higher the switching frequency, the lower the overall sire ζ゛ and the lower the cost.
７ ページ
以上のように本発明のスイッチング式直流安定化電源装
置は構成されるため、力率が大幅に改善され、出力が大
きくなるにつれて入力電流が大幅に低減され、−入力端
のコンデンサとしても容量の小さいものでよく、小型軽
量化が計れるなどの効果をもち、工業的価値の大なるも
のである。Since the switching type DC stabilized power supply device of the present invention is configured as described above on page 7, the power factor is greatly improved, the input current is significantly reduced as the output increases, and - even as a capacitor at the input end. It only needs to have a small capacity, has the advantage of being smaller and lighter, and has great industrial value.
第１図は従来のスイッチング式直流安定化電源装置を示
す電気的回路図、第２図は本発明のスイッチング式直流
安定化電源装置の−・実施例を示す電気的回路図、第３
図は同整流回路の出力波形図、第４図は本発明と従来の
スイッチング式直流安定化電源装置の力率特性図、第５
図は同人力電流特性図、第６図は他の実施例の電気的回
路図である。
１４．１５・・・・・・交流電源端子、１６・・・・・
・整流回路、１７０９．・・、トランス、Ｐ・・・・・
・−次巻Ｍ、Ｆ・・・・・・帰還巻線、Ｓ・・・・・・
二次巻線、１Ｂ・・・・・・スイッチングトランジスタ
、１９・・・・・・ダイオード、２ｏ・・・・・・コン
デンサ、２１・・・・・・ダイオード、２２，２３・・
・・・・ダイオード、２４・・・・・・チョークコイル
、２６・・・制御回路。
代理人の氏名 弁理士 中 尾 敏 男 ほか１名第１
図
第２１！１
第３図
第５図
Ｉ６図FIG. 1 is an electrical circuit diagram showing a conventional switching type DC stabilized power supply device, FIG. 2 is an electrical circuit diagram showing an embodiment of the switching type DC stabilized power supply device of the present invention, and FIG.
The figure is an output waveform diagram of the same rectifier circuit, Figure 4 is a power factor characteristic diagram of the switching type DC stabilized power supply of the present invention and the conventional one, and Figure 5
The figure is a human power current characteristic diagram, and FIG. 6 is an electrical circuit diagram of another embodiment. 14.15... AC power supply terminal, 16...
- Rectifier circuit, 1709. ..., trance, P...
・-Next winding M, F...Feedback winding, S...
Secondary winding, 1B... Switching transistor, 19... Diode, 2o... Capacitor, 21... Diode, 22, 23...
...Diode, 24...Choke coil, 26...Control circuit. Name of agent: Patent attorney Toshio Nakao and 1 other person No. 1
Figure 21!1 Figure 3 Figure 5 Figure I6
Claims (1)
にトランスの一次巻線とスイッチング素子の直列回路を
接続し、上記トランスに一次巻線より少ない巻数で逆極
性の帰還巻線を設け、スイッチング素子のＯＦＦ期間に
帰還巻線に発生する電圧でダイオードを介して充電され
るコンデンサを設け、このコンデンサからトランスの一
次巻線にエネルギーを供給できるようにダイオードを接
続し、トランスの二次巻線に整流回路、平滑回路を設け
るとともにパルス幅制御回路を設け、このパルス幅制御
回路の出力をスイッチング素子に印加するように構成し
てなるスイッチング式直流安定化電源装置。A rectifier circuit is connected to the AC power supply terminal, a series circuit of a primary winding of a transformer and a switching element is connected to the output of the rectifier circuit, and a feedback winding with a smaller number of turns than the primary winding and a reverse polarity is provided in the transformer, A capacitor is provided that is charged via a diode with the voltage generated in the feedback winding during the OFF period of the switching element, and the diode is connected so that energy can be supplied from this capacitor to the primary winding of the transformer. A switching DC stabilized power supply device comprising a rectifier circuit, a smoothing circuit, a pulse width control circuit, and an output of the pulse width control circuit applied to a switching element.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57024724A JPS58141680A (en) | 1982-02-17 | 1982-02-17 | Switching type dc stabilized power source |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57024724A JPS58141680A (en) | 1982-02-17 | 1982-02-17 | Switching type dc stabilized power source |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58141680A true JPS58141680A (en) | 1983-08-23 |
| JPH0379948B2 JPH0379948B2 (en) | 1991-12-20 |
Family
ID=12146100
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57024724A Granted JPS58141680A (en) | 1982-02-17 | 1982-02-17 | Switching type dc stabilized power source |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58141680A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03289360A (en) * | 1990-03-31 | 1991-12-19 | Toshiba Lighting & Technol Corp | Power supply |
| US5349516A (en) * | 1992-09-17 | 1994-09-20 | Rca Thomson Licensing Corporation | Switch mode power supply with reduced input current distortion |
| US5390099A (en) * | 1990-08-10 | 1995-02-14 | Deutsche Thomson-Brandt Gmbh | Line-powered, phase-control circuit |
| US5402330A (en) * | 1991-06-13 | 1995-03-28 | Rca Thomson Licensing Corporation | Switch mode power supply with reduced input current distortion |
| EP0802615A2 (en) * | 1994-01-28 | 1997-10-22 | Matsushita Electric Industrial Co., Ltd. | Switching power source apparatus |
| US5986898A (en) * | 1997-10-30 | 1999-11-16 | Deutsche Thomson-Brandt Gmbh | Switched-mode power supply with power factor correction |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5631116A (en) * | 1979-08-23 | 1981-03-28 | Toko Inc | Switching regulator |
-
1982
- 1982-02-17 JP JP57024724A patent/JPS58141680A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5631116A (en) * | 1979-08-23 | 1981-03-28 | Toko Inc | Switching regulator |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03289360A (en) * | 1990-03-31 | 1991-12-19 | Toshiba Lighting & Technol Corp | Power supply |
| US5390099A (en) * | 1990-08-10 | 1995-02-14 | Deutsche Thomson-Brandt Gmbh | Line-powered, phase-control circuit |
| US5402330A (en) * | 1991-06-13 | 1995-03-28 | Rca Thomson Licensing Corporation | Switch mode power supply with reduced input current distortion |
| US5349516A (en) * | 1992-09-17 | 1994-09-20 | Rca Thomson Licensing Corporation | Switch mode power supply with reduced input current distortion |
| US5349515A (en) * | 1992-09-17 | 1994-09-20 | Rca Thomson Licensing Corporation | Switch mode power supply with feed-forward pulse limit control |
| US5351177A (en) * | 1992-09-17 | 1994-09-27 | Rca Thomson Licensing Corporation | Switch mode power supply with standby mode operation |
| EP0802615A2 (en) * | 1994-01-28 | 1997-10-22 | Matsushita Electric Industrial Co., Ltd. | Switching power source apparatus |
| EP0802615A3 (en) * | 1994-01-28 | 1997-11-05 | Matsushita Electric Industrial Co., Ltd. | Switching power source apparatus |
| US5986898A (en) * | 1997-10-30 | 1999-11-16 | Deutsche Thomson-Brandt Gmbh | Switched-mode power supply with power factor correction |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0379948B2 (en) | 1991-12-20 |
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