JPH01149506A - Decoupling circuit - Google Patents

Decoupling circuit

Info

Publication number
JPH01149506A
JPH01149506A JP62307390A JP30739087A JPH01149506A JP H01149506 A JPH01149506 A JP H01149506A JP 62307390 A JP62307390 A JP 62307390A JP 30739087 A JP30739087 A JP 30739087A JP H01149506 A JPH01149506 A JP H01149506A
Authority
JP
Japan
Prior art keywords
circuit
decoupling
control circuit
filter capacitor
power 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.)
Pending
Application number
JP62307390A
Other languages
Japanese (ja)
Inventor
Kazuo Kishimoto
一雄 岸本
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP62307390A priority Critical patent/JPH01149506A/en
Publication of JPH01149506A publication Critical patent/JPH01149506A/en
Pending legal-status Critical Current

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Abstract

PURPOSE:To execute an effective decoupling with the filter capacitor of a comparatively small capacity without using an expensive DC/DC converter, etc., by using a diode to execute a decoupling function. CONSTITUTION:When a power circuit 1 is operated and a large current flows, a voltage drop is generated at a common impedance 4, and a voltage impressed to the power circuit 1 is lowered. Thus, the voltage impressed to a control circuit 2 is made to be lowered, the voltage drop applied to the control circuit 2 is relieved by a charge accumulated in a filter capacitor 6, and the work of the decoupling is executed. At such a time, the charge accumulated in the filter capacitor 6 is discharged through only the control circuit 2, and the discharge to the power circuit 1 is prevented by a diode 5A.

Description

【発明の詳細な説明】 [産業上の利用分野コ この発明は、デカップリング回路、特に多段増幅器等に
おける各段間の電源のデカップリング回路に関するもの
である。
DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a decoupling circuit, and particularly to a decoupling circuit for power supplies between stages in a multistage amplifier or the like.

[従来の技術] 第3a図は1例えば、1967年6月9日刊工業新聞社
発行、岡村辿夫著「実用半導体回路設計ノート」第11
5頁に示された従来のデカップリング回路の一例を示す
ブロック図である0図において、(1)は電力回路、(
2)は制御回路であって。
[Prior art] Figure 3a shows 1. For example, "Practical Semiconductor Circuit Design Notes" by Takuo Okamura, No. 11, published by Nikkan Kogyo Shimbun on June 9, 1967.
In Figure 0, which is a block diagram showing an example of a conventional decoupling circuit shown on page 5, (1) is a power circuit;
2) is a control circuit.

電力回路(1)の両端間に接続される。(3)は共通電
源であって、電力回路(1)と並列に接続されている。
Connected across the power circuit (1). (3) is a common power supply, which is connected in parallel with the power circuit (1).

(4)は配線インピーダンス、電源の内部インピーダン
スにより発生する共通インピーダンスであって、その一
端が電力回路(1)の一端と、その他端が共通電源(3
)の一端とそれぞれ接続されている。(5)はデカップ
リング機能をはなす抵抗であって、その一端が共通イン
ピーダンス(4)の一端と、その他端が制御回路(2)
の一端とそれぞれ接続されている。(6)はデカップリ
ング機能をはなすフィルタコンデンサであって、その両
端が制御回路(2)の両端と接続されている。(7)は
電力回路(1)と制御回路(2)間の制御線である。
(4) is a common impedance generated by the wiring impedance and the internal impedance of the power supply, one end of which is connected to one end of the power circuit (1), and the other end of which is the common impedance of the power supply (3).
) are connected to one end of each. (5) is a resistor that performs a decoupling function, one end of which connects to the common impedance (4), and the other end to the control circuit (2).
are connected to one end of each. (6) is a filter capacitor that performs a decoupling function, and both ends thereof are connected to both ends of the control circuit (2). (7) is a control line between the power circuit (1) and the control circuit (2).

第3b図はDC/DCコンバータを用い、単一電源から
独立電源を得てデカップリングを行おうとした従来のデ
カップリング回路の一例を示すブロック図である0図に
おいて、(1)〜(4)、(7)は第3a図と同様であ
り、(8)は共通電源(3)から独立電源を得るための
DC/DCコンバータであって、その第1の端子が共通
インピーダンス(4)の一端と、第2の端子が制御回路
(2)の一端と。
Figure 3b is a block diagram showing an example of a conventional decoupling circuit that attempts to perform decoupling by obtaining an independent power supply from a single power supply using a DC/DC converter. , (7) are the same as in Figure 3a, and (8) is a DC/DC converter for obtaining an independent power supply from the common power supply (3), the first terminal of which is one end of the common impedance (4). and the second terminal is one end of the control circuit (2).

第3の端子が制御回路(2)の他端とそれぞれ接続され
ている。
The third terminals are respectively connected to the other ends of the control circuit (2).

従来のデカップリング回路は上記のように構成され、第
3a図において、電力回路(1)が動作し大電流が流れ
ると、共通インピーダンス(4)で電圧降下を生じ、電
力回路(1)にかかる電圧(結合点(9)−結合点(1
0)間型圧)が下がり、また。
The conventional decoupling circuit is configured as described above, and in Fig. 3a, when the power circuit (1) operates and a large current flows, a voltage drop occurs at the common impedance (4) and the voltage is applied to the power circuit (1). Voltage (connection point (9) - connection point (1)
0) mold pressure) decreases.

その事により制御回路(2)にかかる電圧(結合点(1
1)−結合点(12)間型圧)も下がろうとするが、フ
ィルタコンデンサ(6)に蓄積された電荷により制御回
路(2)−抵抗(5)−電力回路(1)を通って放電さ
れる。
As a result, the voltage applied to the control circuit (2) (connection point (1)
1) - junction point (12)) also tries to drop, but the charge accumulated in the filter capacitor (6) discharges through the control circuit (2) - resistor (5) - power circuit (1). be done.

また、第3b図において、DC/DCコンバータ(7)
の持つ定電圧制御機能を用いて安定した独立電源を得て
、電源のデカップリングを行うようにしたもので、電力
回路(1)の動作による電圧降下がD C/D Cコン
バータの制御範囲であれば。
Moreover, in FIG. 3b, the DC/DC converter (7)
A stable independent power supply is obtained using the constant voltage control function of the power supply, and the power supply is decoupled.The voltage drop due to the operation of the power circuit (1) is within the control range of the DC/DC converter. if there is.

制御回路(2)にかかる電圧は安定に保つことができる
The voltage applied to the control circuit (2) can be kept stable.

[発明が解決しようとする問題点] 上記のような従来のデカップリング回路では。[Problem that the invention attempts to solve] In conventional decoupling circuits like the one above.

電力回路の動作による急激な電圧降下が発生すると第3
a図のフィルタコンデンサ(6)に蓄えられた電荷が電
力回路を通じても放電され、有効なデカップリング効果
を得ようとするとこのフィルタコンデンサとして大容量
のものが必要になるという問題点があった。また、第3
b図のデカップリング回路では、DC/DCコンバータ
を使うことにより高価なものになるという問題点もあっ
た。
If a sudden voltage drop occurs due to the operation of the power circuit, the third
There is a problem in that the electric charge stored in the filter capacitor (6) shown in Fig. a is also discharged through the power circuit, and in order to obtain an effective decoupling effect, a large capacity filter capacitor is required. Also, the third
The decoupling circuit shown in Figure b also has the problem that it becomes expensive due to the use of a DC/DC converter.

この発明は、かかる問題点を解決するためになされたも
ので、高価なりC/DCコンバータ等を用いることなく
、比較的小容量のフィルタコンデンサで、効果的なデカ
ップリングを行うデカップリング回路を得ることを目的
とする。
The present invention was made to solve this problem, and provides a decoupling circuit that performs effective decoupling using a relatively small capacity filter capacitor without using an expensive C/DC converter or the like. The purpose is to

[問題点を解決するための手段] この発明に係るデカップリング回路は、共通電源と、こ
の共通電源と並列接続された電力回路と。
[Means for Solving the Problems] A decoupling circuit according to the present invention includes a common power source and a power circuit connected in parallel with the common power source.

この電力回路と並列接続された制御回路と、この制御回
路と並列接続されたフィルタコンデンサと。
A control circuit connected in parallel with this power circuit, and a filter capacitor connected in parallel with this control circuit.

陽極が前記共通電源の一端と陰極が前記フィルタコンデ
ンサと接続されたダイオードとを備えたものである。
The diode has an anode connected to one end of the common power supply and a cathode connected to the filter capacitor.

[作用] この発明においては、ダイオードは、その整流作用によ
りフィルタコンデンサの電荷の制御回路から電力回路へ
の逆流防止を行う。
[Function] In the present invention, the diode prevents the charge of the filter capacitor from flowing back from the control circuit to the power circuit by its rectifying action.

[実施例] 第1図はこの発明の一実施例によるデカップリング回路
を示すブロック図である。図において。
[Embodiment] FIG. 1 is a block diagram showing a decoupling circuit according to an embodiment of the present invention. In fig.

デカップリング機能をはなすダイオード(5A)が。A diode (5A) performs the decoupling function.

第3a図の抵抗(5)の代わりに用いられている以外第
3a図のものと同様である。
It is similar to that in Figure 3a except that it is used in place of resistor (5) in Figure 3a.

第2図はこの発明の動作のタイムチャートを示す図であ
る。
FIG. 2 is a diagram showing a time chart of the operation of the present invention.

上記のように構成されたデカップリング回路において、
電力回路(1)が動作し大電流が流れると共通インピー
ダンス(4)で電圧降下が生じ、電力回路(1)にかか
る電圧(結合点(9)−結合点く10)間型圧)が第2
図(b)に示されるように下がり。
In the decoupling circuit configured as above,
When the power circuit (1) operates and a large current flows, a voltage drop occurs at the common impedance (4), and the voltage applied to the power circuit (1) (the mold pressure between connection point (9) and connection point 10) becomes 2
Down as shown in figure (b).

また、そのことにより制御回路(2)にかかる電圧(結
合点(11)−結合点(12)間型圧)も第2図(C)
に示されるように下がろうとするが、フィルタコンデン
サ(6)に蓄積された電荷により制御回路(2)にかか
る電圧降下が緩和され、デカップリングの働きを行う、
この時、フィルタコンデンサ(6)に蓄積された電荷は
制御回路(2)のみを通って放電され、ダイオード(5
A)により電力回路(1)への放電は阻止される。
In addition, as a result, the voltage applied to the control circuit (2) (the mold pressure between the connection point (11) and the connection point (12)) is also reduced as shown in Fig. 2 (C).
However, due to the charge accumulated in the filter capacitor (6), the voltage drop applied to the control circuit (2) is alleviated and acts as a decoupling.
At this time, the charge accumulated in the filter capacitor (6) is discharged only through the control circuit (2), and the charge accumulated in the filter capacitor (6) is discharged only through the control circuit (2).
A) prevents discharge into the power circuit (1).

なお、上記実施例ではダイオードのみを用いて回路接続
を行ったが、ダイオードと抵抗を直列接続して用いても
上記実施例と同様な効果を奏する。
In the above embodiment, only a diode was used to connect the circuit, but the same effect as in the above embodiment can be obtained even if a diode and a resistor are connected in series.

[発明の効果] この発明は以上説明したとおり、共通電源と。[Effect of the invention] As explained above, this invention uses a common power source.

この共通電源と並列接続された電力回路と、この電力回
路と並列接続された制御回路と、この制御回路と並列接
続されたフィルタコンデンサと、陽極が前記共通電源の
一端と陰極が前記フィルタコンデンサと接続されたダイ
オードとを備え、安価に効果的なデカップリング機能が
得られる効果がある。
A power circuit connected in parallel with this common power supply, a control circuit connected in parallel with this power circuit, a filter capacitor connected in parallel with this control circuit, an anode of which is connected to one end of the common power supply, and a cathode of which is connected to the filter capacitor. It has the effect of providing an effective decoupling function at low cost.

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

第1図はこの発明の一実施例によるデカップリング回路
を示す図、第2図はこの発明の動作のタイムチャート図
、第3a図および第3b図は従来のデカップリング回路
を示す図である。 図において、(1)・・・電力回路、(2)・・・制御
回路、(3)・・・共通電源、(4)・・・共通インピ
ーダンス、(5A)・・・ダイオード、(6)・・・フ
ィルタコンデンサである。 なお、各図中同一符号は同−又は相当部分を示も1図 形2図 A−zhtp7
FIG. 1 is a diagram showing a decoupling circuit according to an embodiment of the present invention, FIG. 2 is a time chart of the operation of the present invention, and FIGS. 3a and 3b are diagrams showing a conventional decoupling circuit. In the figure, (1)...power circuit, (2)...control circuit, (3)...common power supply, (4)...common impedance, (5A)...diode, (6)... ...It is a filter capacitor. In addition, the same reference numerals in each figure indicate the same or equivalent parts.

Claims (1)

【特許請求の範囲】[Claims]  共通電源と、この共通電源と並列接続された電力回路
と、この電力回路と並列接続された制御回路と、この制
御回路と並列接続されたフィルタコンデンサと、陽極が
前記共通電源の一端と陰極が前記フィルタコンデンサと
接続されたダイオードとを備えたことを特徴とするデカ
ップリング回路。
A common power source, a power circuit connected in parallel with this common power source, a control circuit connected in parallel with this power circuit, a filter capacitor connected in parallel with this control circuit, the anode of which is connected to one end of the common power source, and the cathode of which is connected in parallel to the common power source. A decoupling circuit comprising a diode connected to the filter capacitor.
JP62307390A 1987-12-07 1987-12-07 Decoupling circuit Pending JPH01149506A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62307390A JPH01149506A (en) 1987-12-07 1987-12-07 Decoupling circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62307390A JPH01149506A (en) 1987-12-07 1987-12-07 Decoupling circuit

Publications (1)

Publication Number Publication Date
JPH01149506A true JPH01149506A (en) 1989-06-12

Family

ID=17968474

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62307390A Pending JPH01149506A (en) 1987-12-07 1987-12-07 Decoupling circuit

Country Status (1)

Country Link
JP (1) JPH01149506A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20220018025A1 (en) * 2020-07-20 2022-01-20 Asm Ip Holding B.V. Method and system for forming structures including transition metal layers

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20220018025A1 (en) * 2020-07-20 2022-01-20 Asm Ip Holding B.V. Method and system for forming structures including transition metal layers

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