JPS6155340B2 - - Google Patents
Info
- Publication number
- JPS6155340B2 JPS6155340B2 JP4000979A JP4000979A JPS6155340B2 JP S6155340 B2 JPS6155340 B2 JP S6155340B2 JP 4000979 A JP4000979 A JP 4000979A JP 4000979 A JP4000979 A JP 4000979A JP S6155340 B2 JPS6155340 B2 JP S6155340B2
- Authority
- JP
- Japan
- Prior art keywords
- capacitor
- thyristor
- transformer
- winding
- 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.)
- Expired
Links
- 239000003990 capacitor Substances 0.000 claims description 19
- 238000004804 winding Methods 0.000 claims description 17
- 238000010586 diagram Methods 0.000 description 4
- 230000002411 adverse Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 238000009499 grossing 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
- 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
Description
【発明の詳細な説明】
本発明は、コンデンサインプツト型のスイツチ
ングレギユレータにおいて、その突入電流を防ぐ
ようにサイリスターに安定なゲート信号を供給す
るとともに、パワー損失を少なくすることのでき
る装置を提供しようとするものである。DETAILED DESCRIPTION OF THE INVENTION The present invention provides a device that can supply a stable gate signal to a thyristor to prevent inrush current and reduce power loss in a capacitor input type switching regulator. This is what we are trying to provide.
交流入力を整流してコンデンサインプツト型の
平滑回路に加えるスイツチングレギユレータにお
いては、電源を投入するとコンデンサがあるため
に過大な突入電流が流れ、入力装置及び他の機器
に悪影響を及ぼすため、その解決策として従来か
ら各種のものが知られている。 In switching regulators that rectify AC input and add it to a capacitor-input type smoothing circuit, when the power is turned on, an excessive inrush current flows due to the presence of the capacitor, which adversely affects the input device and other equipment. Various solutions have been known to date.
その代表的回路例を第１図Ａ〜Ｃに示す。Ａは
もつとも簡単な回路例であり、入力コンデンサ
C1と直列に電流制限素子（抵抗、サーミスター
等）Ｒを挿入して突入電流を制限するものであ
る。しかし、このものでは電流制限素子Ｒでのパ
ワー損失が大きい。また電圧ドロツプを考慮し
て、トランスＴを設計する必要があるなどの欠点
があり、大容量のスイツチングレギユレータには
使用しにくい。 Typical circuit examples thereof are shown in FIGS. 1A to 1C. A is a very simple circuit example, and the input capacitor
A current limiting element (resistor, thermistor, etc.) R is inserted in series with C1 to limit the rush current. However, in this case, the power loss in the current limiting element R is large. Further, there are drawbacks such as the need to design the transformer T in consideration of voltage drop, making it difficult to use in large-capacity switching regulators.
Ｂは一般的な使用例であり、入力コンデンサ
C1に直列にサイリスタCRを接続し、このサイリ
スタCRに並列に抵抗R1を接続し、電源投入時は
抵抗R1を介して入力コンデンサC1を充電し、あ
るレベルに達すると制御回路が動作してメイント
ランジスタＱがスイツチ動作を開始することによ
りトランスＴのサイリスタゲート信号供給巻線Ｇ
に発生する電圧によりサイリスタCRをトリガす
る。以後サイリスタCRを介して入力電流が流れ
る。この回路はパワー損失が少ないが、トランス
Ｔに別巻線Ｇを必要とするためトランスＴが複雑
になる。 B is a typical usage example, where the input capacitor
A thyristor CR is connected in series with C 1 , a resistor R 1 is connected in parallel with this thyristor CR, and when the power is turned on, the input capacitor C 1 is charged through the resistor R 1 , and when a certain level is reached, the control circuit is activated. When the main transistor Q starts switching operation, the thyristor gate signal supply winding G of the transformer T
Trigger thyristor CR by the voltage generated. After that, the input current flows through thyristor CR. Although this circuit has little power loss, the transformer T requires a separate winding G, making the transformer T complicated.
ＣはＢのものと基本回路は同じであるが、サイ
リスタCRへのゲートトリガ信号を別巻線から供
給せず、トランジスタＱのオフ時に一次巻線Ｐに
発生する逆起電力を利用して、抵抗R3からサイ
リスタCRのゲートにトリガー信号を供給するも
のである。この場合には、パワー損失が大きく、
また出力容量の大小によりゲート信号の変動が大
きいなどの欠点があつた。 The basic circuit of C is the same as that of B, but instead of supplying the gate trigger signal to thyristor CR from a separate winding, it uses the back electromotive force generated in the primary winding P when transistor Q is turned off. A trigger signal is supplied from R3 to the gate of thyristor CR. In this case, the power loss is large,
Another disadvantage was that the gate signal fluctuated greatly depending on the size of the output capacitance.
そこで、本発明はかかる従来の欠点を解消した
装置を提供することを目的とするものである。 SUMMARY OF THE INVENTION It is therefore an object of the present invention to provide an apparatus that eliminates such conventional drawbacks.
以下、本発明につきその実施例を示す図面を用
いて説明する。第２図はその概略構成図を示す。
これは励磁エネルギー帰還巻線Ｆを有するフイー
ドフオワードタイプの回路であり、コンデンサイ
ンプツト型となつている。整流ダイオードD1と
入力コンデンサC1との間に、コンデンサC1に直
列にサイリスタCRを接続し、このサイリスタCR
の抵抗R1を並列接続する。スイツチ投入時に
は、抵抗R1を介してコンデンサC1を充電し、そ
の後少し遅れてサイリスタCRが導通して、以後
サイリスタCRを介してエネルギーを供給する。 DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to drawings showing embodiments thereof. FIG. 2 shows a schematic configuration diagram thereof.
This is a feed-forward type circuit having an excitation energy return winding F, and is of a capacitor input type. A thyristor CR is connected in series with the capacitor C 1 between the rectifier diode D 1 and the input capacitor C 1 , and this thyristor CR
Connect the resistors R 1 in parallel. When the switch is turned on, the capacitor C1 is charged via the resistor R1 , and after a short delay, the thyristor CR becomes conductive, and thereafter energy is supplied via the thyristor CR.
トランスＴの帰還巻線Ｆの巻き終わりは一次巻
線Ｐの巻き始めに接続されており、コンデンサ−
C1の正側にも接続されている。帰還巻線Ｆの巻
き始めはダイオードD3を介してコンデンサC1の
負側に、一次巻線Ｐの巻き終わりはトランジスタ
Ｑのコレクターに、トランジスタＱのエミツター
はコンデンサC1の負側に、それぞれ接続されて
いる。 The end of the feedback winding F of the transformer T is connected to the beginning of the primary winding P, and the capacitor
Also connected to the positive side of C1 . The beginning of the feedback winding F is connected to the negative side of the capacitor C1 via the diode D3 , the end of the primary winding P is connected to the collector of the transistor Q, and the emitter of the transistor Q is connected to the negative side of the capacitor C1 . It is connected.
電源投入後、少し遅れてトランジスタＱのベー
スへ制御回路よりスイツチングパルス信号が送ら
れることにより、トランジスタＱは、オン、オフ
のスイツチング動作をくり返す。トランジスタＱ
がオン時に帰還巻線Ｆに発生する第３図ａのよう
な起電圧により帰還巻線Ｆの巻始めに接続された
ダイオードD2とコンデンサーC3とゲート電流制
限抵抗R3を介してサイリスタCRのゲートに第３
図ｂのようなトリガー信号電流を供給する。抵抗
R4はコンデンサC3の放電抵抗である。二次巻線
Ｓ以後は出力回路である。 After the power is turned on, a switching pulse signal is sent from the control circuit to the base of the transistor Q with a slight delay, so that the transistor Q repeats an on/off switching operation. transistor Q
When on, the electromotive force generated in the feedback winding F as shown in Fig. 3a causes the thyristor CR to flow through the diode D 2 connected to the beginning of the feedback winding F, the capacitor C 3 , and the gate current limiting resistor R 3 . 3rd gate at the gate of
Supply a trigger signal current as shown in Figure b. resistance
R 4 is the discharge resistance of capacitor C 3 . The circuit after the secondary winding S is an output circuit.
電源投入直後には抵抗R1を介して電源が供給
され、その後はサイリスタCRから電源が供給さ
れる。 Immediately after power is turned on, power is supplied via resistor R1 , and thereafter power is supplied from thyristor CR.
このように、本発明の装置によれば、トリガ信
号として入力電圧成分を使用しているためにその
ゲート信号は出力容量の変化による影響を受け
ず、安定であり、設計も簡単である。 As described above, according to the device of the present invention, since the input voltage component is used as the trigger signal, the gate signal is not affected by changes in the output capacitance, is stable, and is easy to design.
また、ゲート信号はコンデンサC3により微分
されるため、回路のパワー損失が少ない。 Also, since the gate signal is differentiated by capacitor C3 , there is less power loss in the circuit.
さらに、サイリスターのトリガー巻線として、
別巻線を必要としない等々の実用的な効果を得る
ことができるものである。 Furthermore, as a trigger winding of a thyristor,
It is possible to obtain practical effects such as not requiring a separate winding.
第１図Ａ，Ｂ，Ｃは従来のスイツチングレギユ
レータの回路図、第２図は本発明の一実施例にお
けるスイツチングレギユレータの回路図、第３図
ａ，ｂはその各部の波形図である。
D1……整流器、CR……サイリスタ、R1……抵
抗、C1……入力コンデンサ、Ｑ……トランジス
タ、Ｔ……トランス、D2，D3……ダイオード、
R3……抵抗、C3……コンデンサ。
Figures 1A, B, and C are circuit diagrams of a conventional switching regulator, Figure 2 is a circuit diagram of a switching regulator according to an embodiment of the present invention, and Figures 3a and b are diagrams of each part thereof. FIG. D 1 ... Rectifier, CR ... Thyristor, R 1 ... Resistor, C 1 ... Input capacitor, Q ... Transistor, T ... Transformer, D 2 , D 3 ... Diode,
R 3 ……Resistor, C 3 ……Capacitor.
Claims (1)
の直列回路に並列にコンデンサを接続し、交流電
源を整流した電源を突入電流防止用のスイツチン
グ素子と抵抗との並列回路を介して上記トラン
ス、主スイツチング素子、およびコンデンサに加
え、上記トランスに帰還巻線を設け、この帰還巻
線に発生したパルスを上記突入電流防止用のスイ
ツチング素子にトリガ信号として加えるようにし
たことを特徴とするスイツチングレギユレータ。1. A capacitor is connected in parallel to the series circuit of the primary winding of the transformer and the main switching element, and the rectified AC power supply is connected to the transformer and the main switching element through the parallel circuit of the switching element for preventing inrush current and the resistor. In addition to the element and the capacitor, the transformer is provided with a feedback winding, and a pulse generated in the feedback winding is applied as a trigger signal to the switching element for preventing inrush current. Rator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4000979A JPS55133675A (en) | 1979-04-02 | 1979-04-02 | Switching regulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4000979A JPS55133675A (en) | 1979-04-02 | 1979-04-02 | Switching regulator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS55133675A JPS55133675A (en) | 1980-10-17 |
| JPS6155340B2 true JPS6155340B2 (en) | 1986-11-27 |
Family
ID=12568897
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4000979A Granted JPS55133675A (en) | 1979-04-02 | 1979-04-02 | Switching regulator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS55133675A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021085881A1 (en) | 2019-10-30 | 2021-05-06 | 주식회사 엘지화학 | Thermoplastic resin composition |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58143490U (en) * | 1982-03-17 | 1983-09-27 | 三洋電機株式会社 | power circuit |
| JPS6037019A (en) * | 1983-08-10 | 1985-02-26 | Yokogawa Hokushin Electric Corp | Rush current control circuit of capacitor |
-
1979
- 1979-04-02 JP JP4000979A patent/JPS55133675A/en active Granted
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021085881A1 (en) | 2019-10-30 | 2021-05-06 | 주식회사 엘지화학 | Thermoplastic resin composition |
| KR20210052231A (en) | 2019-10-30 | 2021-05-10 | 주식회사 엘지화학 | Thermoplastic resin composition |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS55133675A (en) | 1980-10-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4394719A (en) | Current control apparatus for a flyback capacitor charger | |
| JPH0582148B2 (en) | ||
| US4737898A (en) | Single-ended self-oscillating, DC-DC converter with regulation and inhibit control | |
| JPH08317637A (en) | Soft start circuit for switching power-supply device | |
| JPS6155340B2 (en) | ||
| JPH03872Y2 (en) | ||
| JP3215273B2 (en) | Switching power supply | |
| JPS5842994B2 (en) | Horizontal oscillation circuit power supply | |
| JPS6023731Y2 (en) | discharge igniter | |
| JPS5910948Y2 (en) | power supply | |
| JPS6022573B2 (en) | Inrush current limit circuit | |
| JPH0713431Y2 (en) | Power supply circuit | |
| JPS582157Y2 (en) | Inverter starting circuit | |
| JPS6223542B2 (en) | ||
| JPS6223543B2 (en) | ||
| JPS5918866Y2 (en) | power circuit | |
| JPS5826267B2 (en) | DC power control device | |
| JPS6015400Y2 (en) | Electric circuit device with inrush current limiting circuit | |
| JP2599345Y2 (en) | Soft start circuit | |
| JPS5915260Y2 (en) | Self-excited converter device | |
| JPH0545111Y2 (en) | ||
| JPS5875484A (en) | Transistor inverter | |
| JPS6238951B2 (en) | ||
| JPS62178164A (en) | Switching regulator | |
| JPH08289536A (en) | Power supply apparatus |