JPH04368426A - Power supply system - Google Patents
Power supply systemInfo
- Publication number
- JPH04368426A JPH04368426A JP3166245A JP16624591A JPH04368426A JP H04368426 A JPH04368426 A JP H04368426A JP 3166245 A JP3166245 A JP 3166245A JP 16624591 A JP16624591 A JP 16624591A JP H04368426 A JPH04368426 A JP H04368426A
- Authority
- JP
- Japan
- Prior art keywords
- power supply
- package
- supply system
- mounting state
- primary
- 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
- 238000012544 monitoring process Methods 0.000 claims description 10
- 238000010586 diagram Methods 0.000 description 3
- 238000004891 communication Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012966 insertion method Methods 0.000 description 1
Landscapes
- Mounting Of Printed Circuit Boards And The Like (AREA)
- Direct Current Feeding And Distribution (AREA)
Abstract
Description
【０００１】0001
【産業上の利用分野】本発明は通信装置に係り、特に電
源供給方式に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a communication device, and more particularly to a power supply system.
【０００２】0002
【従来の技術】従来の電源供給方式の一例を図２に示し
説明する。この図２において、１１は一次側電源供給装
置、１２はＤＣ−ＤＣコンバータである。そして、従来
の電源供給方式はこの図２に示すように、パッケージと
のインタフェースであるバックボードに一次側電源供給
装置１１からの出力電圧を常に印加しており、パッケー
ジを挿入することにより、直接パッケージに実装されて
いるＤＣ−ＤＣコンバータ１２に一次側電圧を加え、二
次側電圧を得る方式となっており、パッケージとバック
ボードのピンの接続がスイッチの作用をしていた。また
、パッケージとバックボードを結ぶピンには許容電流が
あり、パッケージの消費電流が許容電流値を越える場合
には、１ピン当たりの電流値が許容値以内になるようピ
ン数を増やしていた。2. Description of the Related Art An example of a conventional power supply system is shown in FIG. 2 and will be described. In this FIG. 2, 11 is a primary side power supply device, and 12 is a DC-DC converter. As shown in Figure 2, the conventional power supply system always applies the output voltage from the primary power supply device 11 to the backboard, which is the interface with the package. The system was such that a primary side voltage was applied to a DC-DC converter 12 mounted on the package to obtain a secondary side voltage, and the connection between the pins of the package and the backboard acted as a switch. Furthermore, the pins that connect the package and the backboard have a permissible current limit, and if the current consumption of the package exceeds the permissible current value, the number of pins is increased so that the current value per pin is within the permissible value.
【０００３】0003
【発明が解決しようとする課題】この従来の電源供給方
式では、パッケージを挿入する場合に挿入の仕方によっ
てパッケージとバックボードを結ぶ多数のピンが同時に
は接続されないため、電源供給用の複数のピンの最初に
接続されたピンに瞬間的にパッケージの全消費電流が流
れピンの許容電流値をオーバーしてしまうという課題が
あった。[Problems to be Solved by the Invention] In this conventional power supply system, when inserting a package, many pins connecting the package and backboard are not connected at the same time depending on the insertion method. The problem was that the entire current consumption of the package momentarily flowed to the first pin connected to the pin, exceeding the allowable current value of the pin.
【０００４】0004
【課題を解決するための手段】本発明の電源供給方式は
、実装状態監視回路と、パッケージの一次側電源入力部
に上記実装状態監視回路からの実装状態信号を制御信号
とする電源供給用スイッチを備えるようにしたものであ
る。[Means for Solving the Problems] The power supply system of the present invention includes a mounting state monitoring circuit and a power supply switch that uses a mounting state signal from the mounting state monitoring circuit as a control signal to the primary power input section of the package. It is designed to have the following.
【０００５】[0005]
【作用】本発明においては、パッケージの一次側電源入
力部に電源供給用スイッチを設け、実装状態監視回路か
らの実装状態信号がＧＮＤレベルとなり、完全にパッケ
ージが実装されたときに、一次側電源供給装置からの出
力電圧をパッケージ内のＤＣ−ＤＣコンバータに与える
。[Operation] In the present invention, a power supply switch is provided at the primary side power input section of the package, and when the mounting status signal from the mounting status monitoring circuit becomes GND level and the package is completely mounted, the primary side power supply switch is provided. The output voltage from the supply device is applied to a DC-DC converter within the package.
【０００６】[0006]
【実施例】図１は本発明による電源供給方式の一実施例
を示すブロック図である。この図１において、１は実装
状態監視回路、２は一次側電源供給装置、３はパッケー
ジの一次側電源入力部に実装状態監視回路１からの実装
状態信号を制御信号とする電源供給用スイッチ、４はＤ
Ｃ−ＤＣコンバータである。DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a block diagram showing an embodiment of a power supply system according to the present invention. In FIG. 1, 1 is a mounting state monitoring circuit, 2 is a primary side power supply device, 3 is a power supply switch which uses a mounting state signal from the mounting state monitoring circuit 1 as a control signal to the primary side power input section of the package; 4 is D
It is a C-DC converter.
【０００７】つぎにこの図１に示す実施例の動作を説明
する。本発明の電源供給回路は、パッケージの一次側電
源入力部に電源供給用スイッチ３を備えており、実装状
態監視回路１からの実装状態信号がＧＮＤレベル（実装
状態）となったときに一次側電源供給装置２からの出力
電圧をパッケージ内のＤＣ−ＤＣコンバータ４に与える
方式となっている。Next, the operation of the embodiment shown in FIG. 1 will be explained. The power supply circuit of the present invention is equipped with a power supply switch 3 at the primary side power input section of the package, and when the mounting state signal from the mounting state monitoring circuit 1 reaches the GND level (mounted state), The system is such that the output voltage from the power supply device 2 is applied to the DC-DC converter 4 inside the package.
【０００８】そして、実装状態監視回路１のＡ点，Ｂ点
，Ｃ点をパッケージとバックボードを結ぶ多数あるピン
の隅に配置することで、実装状態信号がＧＮＤレベルと
なった場合には、必ず他のピンは接続された状態にあり
、電源供給用のある特定のピンに許容電流値を越えた電
流が流れるのを防ぐ。By arranging points A, B, and C of the mounting state monitoring circuit 1 at the corners of the many pins connecting the package and the backboard, when the mounting state signal becomes the GND level, The other pins are always connected to prevent a current exceeding the allowable current value from flowing into a specific power supply pin.
【０００９】[0009]
【発明の効果】以上説明したように本発明は、パッケー
ジの一次側電源入力部に実装状態信号を制御信号とする
電源供給用スイッチを有することにより、パッケージ挿
入時にある特定の電源供給用ピンに許容電流値を越えた
電流が流れるのを防ぐことができるという効果を有する
。As explained above, the present invention has a power supply switch that uses a mounting state signal as a control signal in the primary side power input section of the package, so that when the package is inserted, a certain power supply pin is connected to the power supply switch. This has the effect of preventing a current exceeding the allowable current value from flowing.
【図１】本発明による電源供給方式の一実施例を示すブ
ロック図である。FIG. 1 is a block diagram showing an embodiment of a power supply system according to the present invention.
【図２】従来の電源供給方式の一例を示すブロック図で
ある。FIG. 2 is a block diagram showing an example of a conventional power supply system.
１ 実装状態監視回路 ２ 一次側電源供給装置 ３ 電源供給用スイッチ ４ ＤＣ−ＤＣコンバータ 1 Mounting status monitoring circuit 2 Primary side power supply device 3 Power supply switch 4 DC-DC converter
Claims (1)
次側電源入力部に前記実装状態監視回路からの実装状態
信号を制御信号とする電源供給用スイッチとを備えるこ
とを特徴とする電源供給方式。1. A power supply system comprising: a mounting state monitoring circuit; and a power supply switch that uses a mounting state signal from the mounting state monitoring circuit as a control signal in a primary power input section of a package.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3166245A JPH04368426A (en) | 1991-06-12 | 1991-06-12 | Power supply system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3166245A JPH04368426A (en) | 1991-06-12 | 1991-06-12 | Power supply system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH04368426A true JPH04368426A (en) | 1992-12-21 |
Family
ID=15827807
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3166245A Pending JPH04368426A (en) | 1991-06-12 | 1991-06-12 | Power supply system |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH04368426A (en) |
-
1991
- 1991-06-12 JP JP3166245A patent/JPH04368426A/en active Pending
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