KR930002348Y1 - Mfc signal check circuit - Google Patents
Mfc signal check circuit Download PDFInfo
- Publication number
- KR930002348Y1 KR930002348Y1 KR2019900015635U KR900015635U KR930002348Y1 KR 930002348 Y1 KR930002348 Y1 KR 930002348Y1 KR 2019900015635 U KR2019900015635 U KR 2019900015635U KR 900015635 U KR900015635 U KR 900015635U KR 930002348 Y1 KR930002348 Y1 KR 930002348Y1
- Authority
- KR
- South Korea
- Prior art keywords
- mfc
- signal
- check circuit
- signal check
- expansion card
- Prior art date
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Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
- G06F1/04—Generating or distributing clock signals or signals derived directly therefrom
Abstract
내용 없음.No content.
Description
제1도는 본 고안에 따른 MFC 신호 체크 회로 사용상태도.1 is a state diagram used MFC signal check circuit according to the present invention.
제2도는 본 고안에 따른 MFC 신호 체크 회로도.2 is an MFC signal check circuit diagram according to the present invention.
* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings
100 : MFC 200 : 확장 카드100: MFC 200: expansion card
210 : 디지탈 전압계 300 : CPU210: digital voltmeter 300: CPU
211, 212 : 선택 스위치 213 : 적분회로211, 212: selection switch 213: integrating circuit
214 : 비교기 215 : 기준클럭214: comparator 215: reference clock
216 : 앤드게이트 217 : 카운터216: AND gate 217: counter
218 : 디지탈 출력218: digital output
본 고안은 MFC(Mass Flow Control)신호 체크회로에 관한 것으로, 특히 MFC를 동작시키는 신호를 정확하고 간편하게 사용하기 위한 MFC 신호 체크회로에 관한 것이다.The present invention relates to an MFC (Mass Flow Control) signal check circuit, and more particularly, to an MFC signal check circuit for accurately and simply using a signal for operating an MFC.
종래에는 디지탈 전압계(Digital Voltagemeter)로 신호를 찾아서 체크를 하였다.In the prior art, a digital voltmeter was used to find and check the signal.
즉 MFC에 연결된 단자부(Female connector부)의 공통단(Common Point)에 디지탈 전압계의 공통단자를 찌고, 체크하고자 하는 신호의 전압을 체크하는 단자로 찍어 전압을 읽었다.That is, the voltage was read by putting the common terminal of the digital voltmeter at the common point of the terminal connected to the MFC (Female connector) and checking the voltage of the signal to be checked.
그러나 이와같은 종래의 기술구성에 있어서는 MFC에 관한 신호차(Signal Trouble)가 생기며 신호를 체크하는데 복잡하고 불편한 단점이 있었다.However, in the conventional technology configuration, such a signal difference (Signal Trouble) with respect to the MFC is generated and there is a disadvantage that is complicated and inconvenient to check the signal.
이에따라 본 고안은 상기한 단점을 해결하기 위해 제1도에 도시된 바와같이 MFC(100)와 CPU(300) 사이에 확장카드(200)를 연결하고, 디지탈 전압계(210)의 선택스위치(211)는 확장카드(200)의 세트 포인트(Set Point) 단(a)과 프로우 출력(Flow Out)단(6), ±15V단(c,d), 밸브오프(Valve Off)단(e)을 선택토록 하며 디지탈 전압계(210)의 선택 스위치(211) 또한 확장카드(200)의 공통단자(f)를 선택하도록 구성되어 있다.Accordingly, the present invention connects the expansion card 200 between the MFC 100 and the CPU 300, as shown in Figure 1 to solve the above disadvantages, the selection switch 211 of the digital voltmeter 210 The set point stage (a), the flow out stage (6), ± 15V stage (c, d), the valve off stage (e) of the expansion card 200 The selection switch 211 of the digital voltmeter 210 is also configured to select the common terminal f of the expansion card 200.
제2도는 본 고안에 따른 MFC 신호체크회로("가"부분)의 상세회로도로서 디지탈 전압계(210)는 적분회로(213)와 비교기(214), 기준클럭(215), 앤드게이트(216), 카운터(217)등으로 구성됨을 알수 있다.2 is a detailed circuit diagram of the MFC signal check circuit ("ga" portion) according to the present invention, the digital voltmeter 210 is integrated circuit 213, comparator 214, reference clock 215, and gate 216, It can be seen that the counter 217 and the like.
이하 상기한 기술구성의 작동상태를 설명하면 다음과 같다.Hereinafter will be described the operating state of the above described technical configuration.
제1도 내지는 제2도에서 확장카드(200)의 단자(Female Connector)(A)쪽에는 MFC(100)를 연결하고 단자(Male Connector)(B)쪽에는 CPU(300)에서 나오는 신호 케이블을 연결시킨다.In FIG. 1 or FIG. 2, the MFC 100 is connected to the female connector A side of the expansion card 200, and the signal cable from the CPU 300 is connected to the male connector B side. Connect it.
이후 MFC(100)를 작동하기 위해 CPU(300)에서 MFC(100)에 신호를 전달시켰을때 MFC(100)와 CPU(300)의 신호 케이블 사이에 끼워진 확장카드(200)로 부터 선택 스위치(211)(212)에 의해 원하는 신호를 선택하여 디지탈 전압계(210)로 간편하게 디지탈 값(218)을 읽는다.Thereafter, when the CPU 300 transmits a signal to the MFC 100 to operate the MFC 100, the selection switch 211 from the expansion card 200 inserted between the signal cable of the MFC 100 and the CPU 300. 212 selects the desired signal and simply reads the digital value 218 into the digital voltmeter 210.
이와같은 본 고안에 따른 MFC신호 체크회로를 사용하면 MFC 신호 문제가 발생했을때 신호중에서 어떤신호에 문제가 있는지 쉽게 알아 낼수 있으며 MFC의 측정시에도 정확하게 측정할 수 있는 효과를 갖는다.When the MFC signal check circuit according to the present invention is used, when an MFC signal problem occurs, it is easy to find out which signal is out of the signal and has an effect that can be accurately measured even when measuring MFC.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019900015635U KR930002348Y1 (en) | 1990-10-13 | 1990-10-13 | Mfc signal check circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019900015635U KR930002348Y1 (en) | 1990-10-13 | 1990-10-13 | Mfc signal check circuit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR920008204U KR920008204U (en) | 1992-05-20 |
| KR930002348Y1 true KR930002348Y1 (en) | 1993-05-06 |
Family
ID=19304228
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR2019900015635U KR930002348Y1 (en) | 1990-10-13 | 1990-10-13 | Mfc signal check circuit |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR930002348Y1 (en) |
-
1990
- 1990-10-13 KR KR2019900015635U patent/KR930002348Y1/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| KR920008204U (en) | 1992-05-20 |
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