JPH0365052A - Voltage conversion device - Google Patents

Voltage conversion device

Info

Publication number
JPH0365052A
JPH0365052A JP19871189A JP19871189A JPH0365052A JP H0365052 A JPH0365052 A JP H0365052A JP 19871189 A JP19871189 A JP 19871189A JP 19871189 A JP19871189 A JP 19871189A JP H0365052 A JPH0365052 A JP H0365052A
Authority
JP
Japan
Prior art keywords
voltage
voltage conversion
circuit
power
transistor
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
Application number
JP19871189A
Other languages
Japanese (ja)
Inventor
Junichi Mukogawa
向川 潤一
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to JP19871189A priority Critical patent/JPH0365052A/en
Publication of JPH0365052A publication Critical patent/JPH0365052A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE:To control power with a switching voltage conversion circuit actuated always in an optimum condition by performing a control of the power and conversion of voltage with an individual circuit. CONSTITUTION:Output voltage is increased higher than a specified value to exceed Zener voltage of a Zener diode 30, when an electric current is allowed to flow in a light emitting element 28 of a photocoupler, its light receiving element 7 is turned on. Then a flow of current is generated in resistors 8, 9, and divided voltage thereof is increased higher than Zener voltage of a Zener diode 6 with a flow of current in the base of a transistor Tr4. When the transistor Tr4 is turned on, a transistor Tr5 is turned off with power not supplied to a switching voltage conversion circuit from a power control circuit, and the output voltage is returned to the specified value. In this way, while the switching voltage conversion circuit is actuated in an optimum condition, its output can be controlled.

Description

【発明の詳細な説明】 [発明の目的] (産業上の利用分野) この発明は、交流又は直流を入力とし、直流の一定電圧
の出力を取り出す電圧変換装置に関する。
DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial Application Field) The present invention relates to a voltage converter that receives alternating current or direct current as input and takes out a constant voltage output of direct current.

(従来の技術) 従来のスイッチング方式の電圧変換装置ではそれ自体で
スイッチングのパルス幅や周波数を変える事により電圧
を制御していた。
(Prior Art) A conventional switching type voltage converter controls the voltage by changing the switching pulse width and frequency.

従って、入力電圧や負荷の変動に従って装置の動作条件
が変わり、常に最適な状態で装置を動作させる事が困難
であった。
Therefore, the operating conditions of the device change according to fluctuations in input voltage and load, making it difficult to always operate the device in an optimal state.

特に、その効率とノイズ発生の少なさで実用化が急がれ
ている共振式スイッチング電圧変換装置に於いては、そ
のスイッチング条件を変える事は特に困難である。
In particular, it is particularly difficult to change the switching conditions of resonant switching voltage converters, which are being put into practical use quickly because of their efficiency and low noise generation.

(発明が解決しようとする問題点) この発明は、前記事情に基づいてなされたものであり、
スイッチング電圧変換回路を常に最適の条件で動作させ
、しかも入力の変動や負荷の変動に対応した電力の制御
を可能したものであり、特に共振式スイッチング電圧変
換装置の実現への道を開こうとするものである。
(Problems to be solved by the invention) This invention was made based on the above circumstances,
This enables switching voltage conversion circuits to always operate under optimal conditions and to control power in response to input fluctuations and load fluctuations. It is something to do.

[発明の構成] (問題点を解決するための手段) この発明では、位相制御回路又はチョッパー方式の電力
制御回路と、それに続くスイッチング方式の電圧変換回
路から構成され、且つスイッチング電圧変換回路の出力
から前記電力制御回路ヘフどaノ イードバック回路を設けている。
[Structure of the Invention] (Means for Solving the Problems) The present invention comprises a phase control circuit or a chopper type power control circuit, followed by a switching type voltage conversion circuit, and an output of the switching voltage conversion circuit. A noise back circuit is provided between the power control circuit and the power control circuit.

(作用) 前述した様に、従来のスイッチング電圧変換装置では、
電圧の変換と電力の制御を同一の回路で実施していた、
この発明では電力の制御と電圧の変換を別々の回路で行
い、それぞれの回路、特にスイッチング電圧変換回路を
常に最適の条件で動作させ様とするものであり、位相制
御方式またはチョッパー方式の電力制御回路と、それに
続くスイッチング電圧変換回路からなり、電力制御回路
は、スイッチング電圧変換回路の出力からフィトバック
情報を得て、電力の制御を行うものである。
(Function) As mentioned above, in the conventional switching voltage converter,
Voltage conversion and power control were performed in the same circuit,
In this invention, power control and voltage conversion are performed in separate circuits, and each circuit, especially a switching voltage conversion circuit, is always operated under optimal conditions.The invention uses phase control method or chopper method power control. It consists of a circuit and a switching voltage conversion circuit following the switching voltage conversion circuit, and the power control circuit obtains feedback information from the output of the switching voltage conversion circuit and controls the power.

(実施例〉 以下、この発明の一実施例について図面を参照して説明
する。
(Example) Hereinafter, an example of the present invention will be described with reference to the drawings.

第一図は、この発明による電圧変換装置の回路図であり
、左半分が電力制御回路を、右半分がスイッチング電圧
変換回路を示す。
FIG. 1 is a circuit diagram of a voltage conversion device according to the present invention, with the left half showing a power control circuit and the right half showing a switching voltage conversion circuit.

図において、1.2は入力端子であり、ここから交流電
力が入力される。
In the figure, 1.2 is an input terminal, from which AC power is input.

次ぎに3は、整流ブリッヂであり、ここで入力は第二図
a、bに示す様に交流から脈流にかえられる。
Next, 3 is a rectifier bridge, where the input is changed from alternating current to pulsating current as shown in Fig. 2 a and b.

4.5はPNP)ランジスタであり、トランジスタ5は
トランジスタ4がONLない限り常にON状態にあり、
入力された電力はそのまま平滑コンデンサー10を充電
する。
4.5 is a PNP) transistor, and transistor 5 is always in the ON state unless transistor 4 is ONL.
The input power directly charges the smoothing capacitor 10.

トランジスタ16.17とトランス18は、センタータ
ップ方式のスイッチング電圧変換回路を構成する。
The transistors 16 and 17 and the transformer 18 constitute a center tap type switching voltage conversion circuit.

ここでインダクター11は回路への入力を定電流源とす
る為のものである。
Here, the inductor 11 is for making the input to the circuit a constant current source.

更に、ここではトランス18の一次巻1119とそれに
並列に挿入されたコンデンサ22は共振回路を構成する
、トランス18の三次巻線20はトランジスタ16.1
7のゲートへ正帰還となる様に接続されている、その結
果回路全体が一次巻線19とコンデンサ22で決まる一
定の周波数で発振する、その時の電圧と電流の波形を第
二図C1dに示す。
Furthermore, here, the primary winding 1119 of the transformer 18 and the capacitor 22 inserted in parallel thereto constitute a resonant circuit, and the tertiary winding 20 of the transformer 18 is connected to the transistor 16.1.
As a result, the entire circuit oscillates at a constant frequency determined by the primary winding 19 and the capacitor 22. The voltage and current waveforms at that time are shown in Figure 2 C1d. .

抵抗12.13.14及びツェナーダイオード15は起
動とトランジスタ16.17のバイアス回路を構成する
Resistors 12, 13, 14 and Zener diode 15 constitute the starting and biasing circuit for transistors 16, 17.

トランス18の二次巻線21とダイオード23.24、
インダクター25平滑コンデンサ26は出力回路を構成
し、負荷29に電力を供給する。
Secondary winding 21 of transformer 18 and diodes 23, 24,
The inductor 25 and smoothing capacitor 26 constitute an output circuit and supply power to a load 29.

いま、出力電圧が規程値より高くなり、ツェナーダイオ
ード30のツェナー電圧を超えホトカプラーの発光素子
28に電流が流れ、ホトカプラーの受光素子7がONL
、抵抗8.9に電流が流れその分割電圧がツェナーダイ
オード6のツェナー電圧より高くなりトランジスタ4の
ベースに電流がながれ、トランジスタ4がONするとト
ランジスタ5が0FFL、電力制御回路からスイッチン
グ電圧変換回路へ電力が供給されなくなり出力電圧が規
程値に戻る事になる。
Now, the output voltage has become higher than the specified value, exceeding the Zener voltage of the Zener diode 30, and current flows through the light emitting element 28 of the photocoupler, causing the light receiving element 7 of the photocoupler to turn ONL.
, a current flows through the resistor 8.9 and its divided voltage becomes higher than the Zener voltage of the Zener diode 6, and current flows to the base of the transistor 4. When the transistor 4 is turned on, the transistor 5 becomes 0FFL, and from the power control circuit to the switching voltage conversion circuit. Power will no longer be supplied and the output voltage will return to the specified value.

その時の電圧波形を第二図eに示す。The voltage waveform at that time is shown in Figure 2e.

この実施例ではスイッチング電圧変換回路がセンタータ
ップ方式の場合について説明したが、他の方式について
も同様に実施する事ができる。
In this embodiment, the case where the switching voltage conversion circuit is of the center tap type has been described, but the switching voltage conversion circuit can be similarly implemented with other types.

また、この実施例では入力が交流の場合について説明し
たが、入力が直流の場合は、チョッパータイプの電力制
御回路を用いれば同様に実施する事ができる。
Further, in this embodiment, the case where the input is AC is explained, but when the input is DC, the same implementation can be performed by using a chopper type power control circuit.

その他、この発明の要旨を変えない範囲で種々変形可能
なことは勿論である。
It goes without saying that various other modifications can be made without departing from the gist of the invention.

[発明の効果] 以上、詳述した様に、この発明によれば、スイ・ンチン
グ電圧変換回路を最適の状態で動作させながら、容易に
その出力を制御する事ができ、効率の高い電圧変換装置
を提供する事ができる。
[Effects of the Invention] As detailed above, according to the present invention, it is possible to easily control the output of the switching voltage conversion circuit while operating it in an optimal state, and to achieve highly efficient voltage conversion. We can provide equipment.

【図面の簡単な説明】[Brief explanation of drawings]

第一図は、この発明に係る電圧変換装置の一実施例の回
路図であり、第二図は各′部の電圧及び電流波形である
。 1.2・・・・・・・・入力端子 3・・・・・・・・・・整流ブリッジ 4.5.16.17・・トランジスタ 6.15.30・・・・ツエナーダイオード7・・・・
・・・・・・ホトカブラ(受光素子)8.9.12.1
3.14・・抵抗器 10.22.26・・・コンデンサ 11.25・・・・・・インダクタ 18・・・・・・・・・トランス 19.20.21・・・巻線 23.24・・・・・・整流ダイオード28・・・・・
・・・・ホトカプラ(発光素子〉29・・・・・・・・
・負荷
FIG. 1 is a circuit diagram of an embodiment of a voltage converter according to the present invention, and FIG. 2 is a diagram showing voltage and current waveforms at each section. 1.2 Input terminal 3 Rectifier bridge 4.5.16.17 Transistor 6.15.30 Zener diode 7・・・
...Photocoupler (light receiving element) 8.9.12.1
3.14...Resistor 10.22.26...Capacitor 11.25...Inductor 18...Transformer 19.20.21...Winding 23.24 ...... Rectifier diode 28...
...Photocoupler (light emitting element) 29...
·load

Claims (1)

【特許請求の範囲】[Claims] 位相制御回路又はチョッパー方式の電力制御回路と、そ
れに続くスイッチング方式の電圧変換回路からなる装置
において、前記スイッチング電圧変換回路の出力からの
情報を前記電力制御回路にフィードバックし装置全体の
出力を制御する事を特徴とする電圧変換装置
In a device consisting of a phase control circuit or a chopper type power control circuit and a switching type voltage conversion circuit following it, information from the output of the switching voltage conversion circuit is fed back to the power control circuit to control the output of the entire device. Voltage conversion device characterized by
JP19871189A 1989-07-31 1989-07-31 Voltage conversion device Pending JPH0365052A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP19871189A JPH0365052A (en) 1989-07-31 1989-07-31 Voltage conversion device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP19871189A JPH0365052A (en) 1989-07-31 1989-07-31 Voltage conversion device

Publications (1)

Publication Number Publication Date
JPH0365052A true JPH0365052A (en) 1991-03-20

Family

ID=16395741

Family Applications (1)

Application Number Title Priority Date Filing Date
JP19871189A Pending JPH0365052A (en) 1989-07-31 1989-07-31 Voltage conversion device

Country Status (1)

Country Link
JP (1) JPH0365052A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20040046485A (en) * 2002-11-27 2004-06-05 현대자동차주식회사 Synchronizing Apparatus for Reverse-Shift in Manual Transmission

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20040046485A (en) * 2002-11-27 2004-06-05 현대자동차주식회사 Synchronizing Apparatus for Reverse-Shift in Manual Transmission

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