CN201830235U - Switching value stabilizing output circuit - Google Patents
Switching value stabilizing output circuit Download PDFInfo
- Publication number
- CN201830235U CN201830235U CN 201020536691 CN201020536691U CN201830235U CN 201830235 U CN201830235 U CN 201830235U CN 201020536691 CN201020536691 CN 201020536691 CN 201020536691 U CN201020536691 U CN 201020536691U CN 201830235 U CN201830235 U CN 201830235U
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- voltage
- switching value
- diode
- output circuit
- resistor
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- Expired - Lifetime
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Abstract
The utility model provides a switching value stabilizing output circuit, which comprises a diode D1, a voltage-regulator tube Z1, a resistor R1, a photoelectric coupler U1 and a microprocessor MCU (micro control unit), wherein a cathode of the diode D1 is connected with a cathode of the voltage-regulator tube Z1; an anode of the voltage-regulator tube Z1 is connected with one end of the resistor R1; the other end of the resistor R1 is connected with an input end of the photoelectric coupler U1; an output end of the photoelectric coupler U1 is connected with an input end of the microprocessor MCU; and an anode of the diode D1 serves as an opening-inserting signal input end. The switching value stabilizing output circuit has a simple and reliable switching value acquisition hardware circuit and has a flexible implementation method. By changing values of the voltage-regulator tube Z1 and the resistor R1, the acquisition of any voltage opening-inserting signals can be realized.
Description
Technical field
The utility model relates to a kind of switching value and stablizes output circuit, belongs to the railway signal monitoring technical field.
Background technology
Open in the collection at microcomputer detecting system, interference signals often occurs, this interference signal duration is short, and randomness is stronger, in the collection of opening, often influence the signal that needs collection, how can be better faster, these interference signals of simpler filtering are the problems that we think deeply always, traditional judgement switching value is handled by the mode of counting again, the program more complicated, and in a single day it is more to handle way, and program structure is in a mess, and later maintenance and modification are all very difficult.
Summary of the invention
The utility model is at the deficiencies in the prior art, provide a kind of simple in structure, practical, reliability is high, the switching value of high efficiency is stablized output circuit.
The technical scheme that the utility model adopted is as follows: a kind of switching value is stablized output circuit, it comprises diode D1, voltage-stabiliser tube Z1, resistance R 1, photoelectrical coupler U1 and microprocessor MCU, wherein, the negative pole of described diode D1 connects the negative pole of described voltage-stabiliser tube Z1, the positive pole of described voltage-stabiliser tube Z1 connects described resistance R 1 one ends, described resistance R 1 other end connects the input of described photoelectrical coupler U1, the output of described photoelectrical coupler U1 connects the input of described microprocessor MCU, and the positive pole of described diode D1 is as opening into signal input part.
The relative prior art of the utility model has substantive distinguishing features and progress, and specifically, this switching value is stablized output circuit and had the following advantages:
1, this contactor amount acquisition hardware circuit is simple, and is reliable, and implementation method is flexible, and the value that changes voltage-stabiliser tube Z1 and resistance R 1 can realize that any voltage-type opens the collection into signal;
2, the stable algorithm that MCU adopted of this circuit is fairly simple, being transplanted to any MCU goes up more or less freely, basically adopt the C Programming with Pascal Language, can transplant, come to obtain stable signal according to dissimilar switching values if can increase or reduce the number of times of continuous sampling in addition arbitrarily;
3, each is equivalent to a way switch amount signal, in theory can be by once calculating the stabilization signal that obtains n way switch amount, and algorithm is simple, and is reliable.
Description of drawings
Fig. 1 is circuit theory diagrams of the present utility model.
Embodiment
Below by embodiment, the technical solution of the utility model is described in further detail.
As shown in Figure 1, a kind of switching value is stablized output circuit, it comprises diode D1, voltage-stabiliser tube Z1, resistance R 1, photoelectrical coupler U1 and microprocessor MCU, wherein, the negative pole of described diode D1 connects the negative pole of described voltage-stabiliser tube Z1, the positive pole of described voltage-stabiliser tube Z1 connects described resistance R 1 one ends, described resistance R 1 other end connects the input of described photoelectrical coupler U1, the output of described photoelectrical coupler U1 connects the input of described microprocessor MCU, and the positive pole of described diode D1 is as opening into signal input part.
IN1 is for opening into signal; diode D1 is a general-purpose diode; when oppositely inserting, input signal is used for protecting the late-class circuit device not to be damaged; voltage-stabiliser tube Z1 is used for suppressing the interference signal on the input signal; resistance R 1 is a current-limiting resistance; photoelectrical coupler U1 is used for realizing opening the isolation sampling into signal, thereby transfers input signal to microprocessor MCU collectable binary digital signal.
This circuit adopts diode D1, voltage-stabiliser tube Z1, resistance R 1, photoelectrical coupler U1 and microprocessor MCU, and adopt special stable algorithm to obtain stable switching value signal through design, it at first finishes digital processing to input signal by hardware, become the accessible continuous binary digital signal of microprocessor MCU, the special stable algorithm of taking by microprocessor MCU at last, thereby can obtain stable switching value signal fast, and then strengthen the interference protection measure of switching value signal; It has quick realization, strong, the practical advantage of stability, and the stabilize decision that can be suitable for any digital signal is handled.
Claims (1)
1. a switching value is stablized output circuit, it is characterized in that: this circuit comprises diode (D1), voltage-stabiliser tube (Z1), resistance (R1), photoelectrical coupler (U1) and microprocessor (MCU), wherein, the negative pole of described diode (D1) connects the negative pole of described voltage-stabiliser tube (Z1), the positive pole of described voltage-stabiliser tube (Z1) connects described resistance (R1) end, described resistance (R1) other end connects the input of described photoelectrical coupler (U1), the output of described photoelectrical coupler (U1) connects the input of described microprocessor (MCU), and the positive pole of described diode (D1) is as opening into signal input part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020536691 CN201830235U (en) | 2010-09-20 | 2010-09-20 | Switching value stabilizing output circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020536691 CN201830235U (en) | 2010-09-20 | 2010-09-20 | Switching value stabilizing output circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201830235U true CN201830235U (en) | 2011-05-11 |
Family
ID=43968748
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201020536691 Expired - Lifetime CN201830235U (en) | 2010-09-20 | 2010-09-20 | Switching value stabilizing output circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201830235U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102970029A (en) * | 2012-11-06 | 2013-03-13 | 北京广利核系统工程有限公司 | High-safety digital quantity signal acquisition circuit |
| CN106018997A (en) * | 2016-05-12 | 2016-10-12 | 国网天津市电力公司 | Switching-in quantity circuit for optical digital relay protection tester detection |
-
2010
- 2010-09-20 CN CN 201020536691 patent/CN201830235U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102970029A (en) * | 2012-11-06 | 2013-03-13 | 北京广利核系统工程有限公司 | High-safety digital quantity signal acquisition circuit |
| CN106018997A (en) * | 2016-05-12 | 2016-10-12 | 国网天津市电力公司 | Switching-in quantity circuit for optical digital relay protection tester detection |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Henan brilliant software Co., Ltd. Assignor: Henan Splendor Science & Technology Co., Ltd. Contract record no.: 2012410000021 Denomination of utility model: Switching value stabilizing output circuit Granted publication date: 20110511 License type: Exclusive License Record date: 20120320 |
|
| CX01 | Expiry of patent term |
Granted publication date: 20110511 |
|
| CX01 | Expiry of patent term |