JPS63191412A - Signal switching circuit - Google Patents
Signal switching circuitInfo
- Publication number
- JPS63191412A JPS63191412A JP2283287A JP2283287A JPS63191412A JP S63191412 A JPS63191412 A JP S63191412A JP 2283287 A JP2283287 A JP 2283287A JP 2283287 A JP2283287 A JP 2283287A JP S63191412 A JPS63191412 A JP S63191412A
- Authority
- JP
- Japan
- Prior art keywords
- signal
- electronic switch
- circuit
- power source
- switching 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
Links
- 239000003990 capacitor Substances 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 6
- 244000145845 chattering Species 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Landscapes
- Electronic Switches (AREA)
Abstract
Description
【発明の詳細な説明】
〔概要〕
入力信号を整流して得られる直流電流を電子切替器の電
源として接続することにより、電源断時においても信号
切替制御動作を可能にした信号切替回路である。[Detailed Description of the Invention] [Summary] This is a signal switching circuit that enables signal switching control operation even when the power is cut off by connecting a direct current obtained by rectifying an input signal as a power source for an electronic switching device. .
本発明は信号切替回路の改良に関する。 The present invention relates to improvements in signal switching circuits.
信号切替回路は切替作用が確実安定であること、また高
速切替が可能で且つ回路寿命が長いことが望まれる。It is desired that the signal switching circuit has a reliable and stable switching action, is capable of high-speed switching, and has a long circuit life.
信号切替回路には、従来リレー回路が使用されている。 Conventionally, a relay circuit is used as a signal switching circuit.
リレー回路の駆動には電流供給回路が必要であるが、こ
の駆動電流は一般に大きな値となる。しかし、リレー回
路は駆動電源断時において、接点がある接続状態に固定
されることから、この状態にて信号回路の接続状態が保
てる様な接点構成を持たセることが出来る。A current supply circuit is required to drive the relay circuit, and this drive current generally has a large value. However, since the relay circuit has its contacts fixed in a certain connected state when the drive power is turned off, it is possible to have a contact configuration that allows the signal circuit to maintain the connected state in this state.
しかし、機械的な構成をもつので、高速切替器として動
作させるのには不適当であり、激しい開閉動作は回路の
寿命を短縮させ、チャタリングの発生等の問題もある。However, since it has a mechanical structure, it is not suitable for operating as a high-speed switch, and violent switching operations shorten the life of the circuit and cause problems such as chattering.
そこで、この欠点を切替器の電子化によって防く方法
が考えられた。第３図はかかる、電子化された切替回路
のプロ・ツク回路図である。Therefore, a method was devised to prevent this drawback by making the switch electronic. FIG. 3 is a block diagram of such an electronic switching circuit.
信号入力部１から入力された信号は電子切替器５によて
信号出力部２への導通が制御される。この制御は制御信
号入力部３からの制御信号によって行われる。４は電源
回路を示し、電子切替器５は電源回路４から電流が供給
されることによって動作する。The conduction of the signal input from the signal input section 1 to the signal output section 2 is controlled by the electronic switch 5. This control is performed by a control signal from the control signal input section 3. Reference numeral 4 indicates a power supply circuit, and the electronic switch 5 operates by being supplied with current from the power supply circuit 4.
電子切替器を使用する信号切替回路は高速な開閉動作が
可能であり寿命も長くかつ低電力消費の利点があるが、
一旦、電源回路４の供給が断になると全く動作不能にな
りリレー回路と異なり、信号を接続状態に保持出来ない
という問題点がある。Signal switching circuits that use electronic switching devices are capable of high-speed opening and closing operations, have a long lifespan, and have the advantage of low power consumption.
Once the power supply circuit 4 is cut off, it becomes completely inoperable, and unlike a relay circuit, there is a problem in that the signal cannot be maintained in a connected state.
上記の問題点は、第１図の本発明の原理図に示す様に、
切替られるべき入力信号の一部を整流回路６により整流
平滑して電子切替器５の電源として使用するように構成
した本発明の信号切替回路によって解決される。The above problems are solved as shown in the principle diagram of the present invention in FIG.
This problem is solved by the signal switching circuit of the present invention, which is configured so that a part of the input signal to be switched is rectified and smoothed by the rectifier circuit 6 and used as a power source for the electronic switch 5.
本発明によれば、信号入力部１に設けた整流回路６は信
号電流を整流して電子切替器５に与え、電源断時におい
ても電子切替器５の動作に必要な電流を容量７から供給
することが可能である。従って、電子切替器５は制御信
号人力３によって開閉され、高速動作と安定な切替動作
が電源断時においても保証される。According to the present invention, the rectifier circuit 6 provided in the signal input section 1 rectifies the signal current and supplies it to the electronic switch 5, and the capacitor 7 supplies the current necessary for the operation of the electronic switch 5 even when the power is cut off. It is possible to do so. Therefore, the electronic switch 5 is opened and closed by the control signal 3, and high-speed operation and stable switching operation are guaranteed even when the power is cut off.
図示実施例に従って本発明の詳細な説明する。 The invention will now be described in detail according to illustrated embodiments.
第２図は本発明の信号切替回路の接続図である。FIG. 2 is a connection diagram of the signal switching circuit of the present invention.
図において、信号入力部１１若しくは１２からの入力信
号はＭＯＳ切替器５１若しくは５２によって信号出力部
２１へ接続され、信号を出力する。In the figure, an input signal from a signal input section 11 or 12 is connected to a signal output section 21 by a MOS switch 51 or 52, and a signal is output.
切替器５１．５２の制御は制御信号入力部３１若しくは
３２から与える制御信号によって行われる。The switching devices 51 and 52 are controlled by a control signal supplied from the control signal input section 31 or 32.
切替器５１．５２は電源４から直流電圧＋■を与えられ
て動作する。The switching devices 51 and 52 operate by being supplied with DC voltage +■ from the power source 4.
本発明による、切替器５１．５２は抵抗９１と整流器６
１若しくは抵抗９２と整流器６２からなる整流回路が設
けられる。According to the invention, the switch 51, 52 includes a resistor 91 and a rectifier 6.
1 or a rectifier circuit consisting of a resistor 92 and a rectifier 62 is provided.
整流回路は整流器６１若しくは整流器６２により、信号
入力部１１若しくは信号入力部１２からの入力信号を整
流し、容量７１若しくは７２にて平滑した後、ＭＯＳ切
替器５１若しくは５２へ供給する。The rectifier circuit rectifies the input signal from the signal input section 11 or the signal input section 12 by a rectifier 61 or 62, smoothes it by a capacitor 71 or 72, and then supplies it to the MOS switch 51 or 52.
ここで、整流回路の抵抗９１．９２は整流器回路が入力
信号源に対して与える影響を軽減するためのインピーダ
ンスである。また直流電源回路４に設けた整流器８１．
８２は電源断時、信号入力を整流して切替器５１．５２
の電源電流として与える整流電流が電源回路４を介し放
電するのを阻止する。Here, the resistances 91 and 92 of the rectifier circuit are impedances for reducing the influence of the rectifier circuit on the input signal source. Further, a rectifier 81 provided in the DC power supply circuit 4.
82 is a switching device 51.52 which rectifies the signal input when the power is cut off.
This prevents the rectified current provided as the power supply current from discharging through the power supply circuit 4.
切替回路の電源回路４が断になると直流電圧が切替器５
１．５２へ与えられない。しかし、本発明によれば信号
入力部の整流電流が与えられるので、切替器の開閉動作
が可能となり、信号出力を出力部２１に得ることが出来
る。When the power supply circuit 4 of the switching circuit is disconnected, the DC voltage changes to the switching circuit 5.
1.52 cannot be given. However, according to the present invention, since a rectified current is applied to the signal input section, the switch can be opened and closed, and a signal output can be obtained at the output section 21.
本発明によれば電源断時においても切替器の動作が可能
な、小電力消費、高速動作、長寿命の電子切替回路を提
供することが可能となりその作用効果は極めて大きい。According to the present invention, it is possible to provide an electronic switching circuit that consumes little power, operates at high speed, and has a long life, which allows the switching device to operate even when the power is cut off, and its effects are extremely large.
第１図は本発明の原理図、
第２図は本発明一実施例の切替回路の接続図、第３図は
従来の電子切替回路のブロック回路図である。
図において、
１．１１．１２は信号入力部、
２．２１は信号出力部、
３．３１．３２は制御信号入力部、
４は電源回路、
５は電子切替器、
６は整流回路、
６１．６２．８．８１．８２は整流器、７．７１．７２
は容量、
５１．５２はＭＯＳ切替器、
９１．９２は抵抗を示す。FIG. 1 is a principle diagram of the present invention, FIG. 2 is a connection diagram of a switching circuit according to an embodiment of the present invention, and FIG. 3 is a block circuit diagram of a conventional electronic switching circuit. In the figure, 1.11.12 is a signal input section, 2.21 is a signal output section, 3.31.32 is a control signal input section, 4 is a power supply circuit, 5 is an electronic switch, 6 is a rectifier circuit, 61. 62.8.81.82 is a rectifier, 7.71.72
is the capacitance, 51.52 is the MOS switch, and 91.92 is the resistance.
Claims (1)
路（６）と、該入力信号を切替える電子切替器（５）と
を備え、前記整流信号電流を平滑して該電子切替器（５
）の電源供給線に供給する様に接続したことを特徴とす
る信号切替回路。It is equipped with a rectifier circuit (6) that branches and rectifies the input signal of the signal input section (1), and an electronic switch (5) that switches the input signal, and smoothes the rectified signal current and converts the input signal into the electronic switch (5). 5
) A signal switching circuit characterized in that the signal switching circuit is connected so as to be supplied to the power supply line of ).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2283287A JPS63191412A (en) | 1987-02-03 | 1987-02-03 | Signal switching circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2283287A JPS63191412A (en) | 1987-02-03 | 1987-02-03 | Signal switching circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63191412A true JPS63191412A (en) | 1988-08-08 |
Family
ID=12093671
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2283287A Pending JPS63191412A (en) | 1987-02-03 | 1987-02-03 | Signal switching circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63191412A (en) |
-
1987
- 1987-02-03 JP JP2283287A patent/JPS63191412A/en active Pending
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