JPS6079416A - Power unit - Google Patents
Power unitInfo
- Publication number
- JPS6079416A JPS6079416A JP18787983A JP18787983A JPS6079416A JP S6079416 A JPS6079416 A JP S6079416A JP 18787983 A JP18787983 A JP 18787983A JP 18787983 A JP18787983 A JP 18787983A JP S6079416 A JPS6079416 A JP S6079416A
- Authority
- JP
- Japan
- Prior art keywords
- voltage
- circuit
- switching regulator
- load
- input voltage
- 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
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
- H02M3/02—Conversion of dc power input into dc power output without intermediate conversion into ac
- H02M3/04—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters
- H02M3/10—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M3/145—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
- H02M3/155—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明は、スイッチングレギュレータおよびこのレギュ
レータを制御する手段を備えた、電源装置に関するもの
である。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a power supply device comprising a switching regulator and means for controlling the regulator.
従来例の構成とその問題点
従来の仁の種の装置としては第１図に示すものがあった
。Structure of the conventional example and its problems A conventional kerosene seed apparatus is shown in FIG.
第１図において、１はスイッチングレギュレータ、２は
レギュレータ１の動作が保障される電圧を発生する基準
電源、３は入力電圧と基準電圧２の比較を行なう比較回
路、４は比１咬回路出カにより、スイッチングレギュレ
ータ１を制御−スるＲｏｌｌ ８回路、５は負荷であり
、ＣＰＩＪ５ａおよびその周辺回路（メモリ装置等）５
ｂより構成されている。In Figure 1, 1 is a switching regulator, 2 is a reference power supply that generates a voltage that ensures the operation of regulator 1, 3 is a comparator circuit that compares the input voltage and reference voltage 2, and 4 is a ratio 1/2 circuit output. The Roll 8 circuit that controls the switching regulator 1, 5 is a load, and the CPIJ 5a and its peripheral circuits (memory device, etc.) 5
It is composed of b.
６は発振回路、８は１の出力電圧を決定する基準電源、
７は出力電圧と基準電圧８の比較を行なう比較回路であ
る。6 is an oscillation circuit, 8 is a reference power supply that determines the output voltage of 1,
7 is a comparison circuit that compares the output voltage and the reference voltage 8.
以上のように構成された従来のスイッチングレギュレー
タの制御装置について、以下その動作について説明ずさ
。声ずスイッチングレギュレータ１の入力′［１ｊ圧と
基準電源２の出力を比較回路３で比較する。スイッチン
グレギュレータ１の入力電圧が基準電源２の出力より低
くなった時に、比較回路３は制御回路４にスイッチング
レギュレータ１の停止とその出力を供給しているＣＰＵ
５へ、電源供給停止を伝える。するとＣＰＵ５ａは周辺
回路６ｂと共に動作を停止する。The operation of the conventional switching regulator control device configured as described above will be explained below. The comparison circuit 3 compares the input '[1j pressure of the voice switching regulator 1 and the output of the reference power supply 2]. When the input voltage of the switching regulator 1 becomes lower than the output of the reference power supply 2, the comparator circuit 3 causes the control circuit 4 to stop the switching regulator 1 and stops the switching regulator 1, and the CPU that supplies the output thereof.
5, inform that the power supply will be stopped. Then, the CPU 5a stops operating together with the peripheral circuit 6b.
しかしながら、この装置においては、基準電源２．８、
比較回路３，７と同じ働きをする回路が設けられ、複雑
な構造となっている。However, in this device, the reference power source is 2.8,
A circuit having the same function as the comparison circuits 3 and 7 is provided, and has a complicated structure.
発明の目的
本発明は簡単な構成の電源装置を提供することを目的と
する。OBJECTS OF THE INVENTION It is an object of the present invention to provide a power supply device with a simple configuration.
発明の構成
本発明は上記従来の問題を解消するもので、スイッチン
グレギュレータの発振停止時が動作停止時であることを
利用することにより、基準電源と比較回路をスイッチン
グレギュレータ内の基準電源と比較回路７で代用したも
のである二実施例の説明
以下に本発明の実施例について説明する。第２図におい
て、１１はスイッチングレギュレータ、１２は発振向路
、１３は比較回路、１４はスイッチングレギュレータ１
１の出力の基準となる基準電源、１５はスイッチングト
ランジスタ、１６はコイル、１７はダイオードである。Structure of the Invention The present invention solves the above-mentioned conventional problems, and utilizes the fact that the time when the switching regulator stops oscillating is the time when the operation stops. DESCRIPTION OF TWO EMBODIMENTS WHICH ARE SUBSTITUTED BY EXAMPLE 7 EXAMPLES Examples of the present invention will be described below. In FIG. 2, 11 is a switching regulator, 12 is an oscillation direction path, 13 is a comparison circuit, and 14 is a switching regulator 1.
1 is a reference power source serving as a reference for the output of 1, 15 is a switching transistor, 16 is a coil, and 17 is a diode.
１Ｂは発振停止検出回路で、結合コンデンサー９．整流
ダイオード２０，２１．平滑コンデンサ２２．ｉ電抵抗
＼
２３ 、２４ 、制御トランジスタ２ｓから構成されて
いる。２６は負荷であり、第１図に６で示したようにＣ
ＰＵ、その周辺回路からなるものである。1B is an oscillation stop detection circuit, and a coupling capacitor 9. Rectifier diodes 20, 21. Smoothing capacitor 22. It is composed of i-electrical resistors \ 23 , 24 and a control transistor 2s. 26 is a load, and as shown at 6 in Fig. 1, C
It consists of a PU and its peripheral circuits.
第３図は上記実施例の回路各部における動作電流、電圧
波形を示すものである。同図においてイはスイッチング
レギュレーター１０入力電圧、口はスイッチングレギュ
レーター１の出力電圧、ハはスイッチングトランジスタ
ー５のコレクタ′電圧、二は平滑用のコンデンサ２２の
端子電圧、ホは制御トランジスタ２６のコレクタ電圧で
ある。FIG. 3 shows the operating current and voltage waveforms in each part of the circuit of the above embodiment. In the figure, A is the input voltage of the switching regulator 10, OUT is the output voltage of the switching regulator 1, C is the collector voltage of the switching transistor 5, 2 is the terminal voltage of the smoothing capacitor 22, and E is the collector voltage of the control transistor 26. be.
次に第２図に示し−た電源装置について、以下その動作
を説明する。Next, the operation of the power supply device shown in FIG. 2 will be explained below.
出力電圧が規定値のとき、スイッチングトランジスター
６は断状態、続状態を繰り返し、そのコレクタ電圧は第
３図ハに示される方形波となる。When the output voltage is at a specified value, the switching transistor 6 repeats an OFF state and an ON state, and its collector voltage becomes a square wave as shown in FIG. 3C.
この電圧を結合コンデンサー９で父流分のみ取り出し、
整流タイオード２０．２１で整流し、平滑コンデンサ２
２で平滑し、制御トランジスタ２６にベース電流を流し
、そのトランジスタ２６ｆ：オン状態に保ち、コレクタ
に接続されているスイッチングレギュレータ１が正常に
動作していることを伝える。Take out only the father flow of this voltage with the coupling capacitor 9,
Rectify with rectifier diodes 20 and 21, smoothing capacitor 2
2, the base current is caused to flow through the control transistor 26, and the transistor 26f is kept in the on state to notify that the switching regulator 1 connected to the collector is operating normally.
また入力電圧が降下し、クイ１．チングトランジスタ１
５が常時続状態となりスイッチングレギュレータとして
の機能が保てなくなった状態を第３図において時刻ｔ１
以降のものとして示している。In addition, the input voltage drops, causing the input voltage to drop. switching transistor 1
5 is in a constant state and cannot maintain its function as a switching regulator at time t1 in Fig. 3.
It is shown as following.
この場合トランジスタ１６のコレクタ電圧は直流分のみ
となる。この結果整流ダイオード２ｏ。In this case, the collector voltage of the transistor 16 is only a DC component. As a result, the rectifier diode 2o.
２１の出力は無くなり、平滑コンデンサ２２は抵抗２３
，２４、制御トランジスタ１８のベースを通じて放電し
、コンデンサ２２の端子電圧はトランジスタ１Ｂをオン
状態に保てなくなる程低下する。したがってトランジス
タ１８はオフ状態になり、このトランジスタ１８のコレ
クタに接続されている回路に入力電圧低下の異常を伝え
る。The output of 21 disappears, and the smoothing capacitor 22 becomes the resistor 23.
, 24, is discharged through the base of control transistor 18, and the voltage at the terminals of capacitor 22 drops to such an extent that transistor 1B cannot be kept on. Therefore, the transistor 18 is turned off, and the abnormality of the input voltage drop is transmitted to the circuit connected to the collector of the transistor 18.
なお、上記の発明において、発振停止検出回路１８はダ
イオードとコンデンサを利用した時定数回路だが、デジ
タルカウンタを利用した言１時回路を用いるようにする
こともできるス
発明の効果
以上の説明から明らかなように本発明によれば、スイッ
チングレギュレータの外部に基準を源を直ぐこと無く、
内部基準電源を利用して、安価な回路で入力電圧の低下
を検出することができる。In the above invention, the oscillation stop detection circuit 18 is a time constant circuit using a diode and a capacitor, but it is clear from the above description that it is possible to use a time constant circuit using a digital counter. According to the present invention, the reference source is not directly connected to the outside of the switching regulator.
By using an internal reference power supply, a drop in input voltage can be detected with an inexpensive circuit.
第１図は従来の電源装置のブロック図、第２図は本発明
の一実施例による電源装置のブロック図、第３図はその
要部の信号波形図である。
１１・・・・スイッチングレギュレータ、１４・・基準
電源、１２・・・・・発振回路、１３ ・・比１咬回路
、１８・・・・・・発振停止検出回路、２６ ・・・負
荷。
代理人の氏名 ノｌ゛理士 中 尾 敏 男 ほか１名
第１図
ｆ
第３図FIG. 1 is a block diagram of a conventional power supply device, FIG. 2 is a block diagram of a power supply device according to an embodiment of the present invention, and FIG. 3 is a signal waveform diagram of the main parts thereof. 11...Switching regulator, 14...Reference power supply, 12...Oscillation circuit, 13...Ratio 1/bit circuit, 18...Oscillation stop detection circuit, 26...Load. Name of agent: Toshio Nakao, Physician, and one other person Figure 1 f Figure 3
Claims (1)
じて断続するスイッチングトランジスタと、前記スイッ
チングトランジスタの出力を負荷に供給する手段と、前
記負荷に加わる直流電圧と基準電圧とを比較し、負荷電
圧が前記基準電圧を越えた時にのみ前記発振回路の動作
を行なわせる比較回路と、入力電圧が降下し、前記発振
回路の動作が維持できなくなった時にその発振停止を検
出し、前記負荷にその検出信号を供給する手段とを設け
ることを特徴とする電源装置。A switching transistor that intermittents the DC current supplied from the input power supply in accordance with the output of the oscillation circuit, means for supplying the output of the switching transistor to the load, and a means for comparing the DC voltage applied to the load with a reference voltage, A comparator circuit operates the oscillation circuit only when the voltage exceeds the reference voltage, and a comparator circuit detects the stop of oscillation when the input voltage drops and the oscillation circuit cannot continue operating, and provides the load with the comparator circuit. A power supply device comprising means for supplying a detection signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18787983A JPS6079416A (en) | 1983-10-06 | 1983-10-06 | Power unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18787983A JPS6079416A (en) | 1983-10-06 | 1983-10-06 | Power unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6079416A true JPS6079416A (en) | 1985-05-07 |
Family
ID=16213799
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18787983A Pending JPS6079416A (en) | 1983-10-06 | 1983-10-06 | Power unit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6079416A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7609039B2 (en) | 2005-09-09 | 2009-10-27 | Fujitsu Microelectronics Limited | Controller and control method for DC-DC converter |
| DE102013222486A1 (en) | 2013-07-23 | 2015-01-29 | Sms Siemag Ag | Method with a device for carrying out work in a metallurgical plant work environment |
-
1983
- 1983-10-06 JP JP18787983A patent/JPS6079416A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7609039B2 (en) | 2005-09-09 | 2009-10-27 | Fujitsu Microelectronics Limited | Controller and control method for DC-DC converter |
| DE102013222486A1 (en) | 2013-07-23 | 2015-01-29 | Sms Siemag Ag | Method with a device for carrying out work in a metallurgical plant work environment |
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