CN102244515A - Universal multi-channel switching value converter - Google Patents
Universal multi-channel switching value converter Download PDFInfo
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- CN102244515A CN102244515A CN2011100581735A CN201110058173A CN102244515A CN 102244515 A CN102244515 A CN 102244515A CN 2011100581735 A CN2011100581735 A CN 2011100581735A CN 201110058173 A CN201110058173 A CN 201110058173A CN 102244515 A CN102244515 A CN 102244515A
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- optocoupler
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Abstract
The invention discloses a universal multi-channel switching value converter. Three pins of a three-pin socket connector are connected with the anode and cathode of a power module and a switching value signal respectively. The common terminal of the switching value signal is connected with the negative input end of an optocoupler by a current limiting resistor. A Pi-type filter is connected between the positive and negative input ends of the optocoupler. An open collector is arranged at the output end of the optocoupler, and is connected to 5V by a pull-up resistor. The universal multi-channel switching value converter is highly universal, and can determine a switching value to be converted only by changing the connection statuses of the two socket connectors without changing a hardware structure. The switching value has a value of amplitude which is any value between 15V and 35V and frequency which is any value between 0MHz and 1MHz. The universal multi-channel switching value converter has a simple hardware circuit comprising basic components, does not require any dedicated chip, is low in cost and greatly improves the reliability of the whole system.
Description
Technical field
The present invention relates to a kind of multi-channel switch amount conversion equipment.
Background technology
In industrial control system, need be input to application interface in computer or the controller to the digital value in groups of single on/off switch, high/low level or physical quantity of reflection controlled device usually.The switching value that controlled device produces as the output of limit switch, rotary switch, temperature switch, various button, relay, can be divided into following two kinds: break-make type (passive) switching value, the various switches of reflection controlled device and the switching state of contact; Level type (active) switching value, the height state of reflection logic level.These switching values are input to computer with the switch acquisition card or controller is handled, usually the switching value of switch acquisition card collection need meet the electrical standard of TTL, DTL compatibility, and above-mentioned break-make type switching value and level type switching value all do not meet usually, this just need convert these two kinds of switching values the switching value of the electrical standard that meets TTL, DTL compatibility to a kind of transducer, and isolate with anti-interference process after deliver to the switch acquisition card.
Existing transducer has two kinds, one, with the level type switching value process photoelectricity isolation processing at scene, eliminates strong electrical control circuit the pulsation that microsystem produces has been disturbed, finished level conversion simultaneously, carry out filtering on this basis and disappear trembling, with the signal output after handling.Two, the break-make type switching value at scene is handled through interface circuit, become level type switching value, then through photoelectricity isolation, filtering with disappear to tremble and handle back output.Two kinds of transducers respectively can only be to a kind of conversion the in break-make type switching value and the level type switching value, and versatility is not strong.When needs are changed simultaneously to two kinds of switching values, need to use two kinds of transducers, cost is higher.
In present lot of documents both domestic and external and the patent, do not relate to how compatible two kinds of switching values conversion on a transducer.
Summary of the invention
Can not compatible two kinds of switching values change in order to overcome prior art, and complex structure, the higher deficiency of cost the invention provides a kind of general multi-channel switch energy converter, both can change break-make type switching value, again can switching levels type switching value, passage is many simultaneously, cost is low, better performances.
The technical solution adopted for the present invention to solve the technical problems is: comprise power module, three pin connectors, Pi mode filter, current-limiting resistance and optocoupler.Three pins of three pin connectors are connected with the both positive and negative polarity and the switching value signal of power module respectively, and switching value signal common port is connected with the negative input end of optocoupler by current-limiting resistance, connect the Pi mode filter between the positive and negative input of optocoupler; The output of optocoupler is the OC door, receives 5V by a pull-up resistor.This device only needs to adjust two pin connectors and whether adds the position that short-circuit block and three pin connectors add short-circuit block when using, and can determine that transducer conversion break-make type switching value still is a level type switching value.
When conversion break-make type switching value, with power cathode and switching value signal short circuit, two pin connectors add short-circuit block.During switch closure, the negative pole of former limit, current-limiting resistance and the power module of the 24V of power module output, two pin connectors, optocoupler composition loop, the light-emitting diode on the former limit of optocoupler flows through electric current and luminous, thereby makes also conducting of optical coupling secondary edges, output low level; When switch disconnects, not conducting of loop, also not conducting of optical coupling secondary edges, output high level.Realized of the conversion of break-make type switching value to level type switching value.
When switching levels type switching value, with switching value signal and optocoupler positive input terminal short circuit, two pin connectors do not add short-circuit block.When switching value was high level, the loop was formed on the former limit of optocoupler, current-limiting resistance, and the light-emitting diode on the former limit of optocoupler flows through electric current and luminous, thereby makes also conducting of optical coupling secondary edges, output low level; When switching value was low level, 2 current potentials in the former limit of optocoupler were identical, and the loop no current passes through, also not conducting of optical coupling secondary edges, output high level.
Wherein, the value of current-limiting resistance is 2.5K, and the resistance of pull-up resistor is 15K.Optocoupler has 4 paths, and frequency is more than 1MHz.
The invention has the beneficial effects as follows: highly versatile of the present invention, only needs change the connection status of two connectors, can determine to change which kind of switching value, and not need to change hardware configuration.The amplitude of switching value can be between the 15V-35V, and frequency is an arbitrary value between the 0-1MHz.Hardware circuit of the present invention is simple, and all is some primary elements, need not to add special chip, and cost is low, and the reliability of whole system is greatly improved.
Description of drawings
Fig. 1 is a hardware configuration schematic diagram of the present invention,
Among the figure, 1-produces the power module of 24V, 2-switching value signal input part, and 3-three pin connectors, 4-two pin connectors, the 5-pi mode filter, the 6-current-limiting resistance, the 7-optocoupler, 8-produces the power module of 5V, 9-pull-up resistor.
Embodiment
Comprise power module, connector, Pi mode filter, current-limiting resistance and optocoupler composition.The 24V of power module output is connected with the positive input terminal on the former limit of optocoupler and 1 pin of three pin connectors by the connector of one two pin, negative pole is connected with 3 pin of three pin connectors, the switching value signal is connected with 2 pin of three pin connectors, switching value signal common port is connected with the negative input end of optocoupler by current-limiting resistance, connects the Pi mode filter between the positive and negative input of optocoupler; The output of optocoupler is the OC door, receive 5V by a pull-up resistor, this device only needs to adjust two pin connectors and whether adds the position that short-circuit block and three pin connectors add short-circuit block when using, and can determine that transducer conversion break-make type switching value still is a level type switching value.
When conversion break-make type switching value, with 2, the 3 pin short circuits of short-circuit block with three pin connectors, two pin connectors add short-circuit block.During switch closure, 2,3 pin of the former limit of the 24V of power module output, two pin connectors, optocoupler, current-limiting resistance, three pin connectors and the negative pole of power module are formed the loop, the light-emitting diode on the former limit of optocoupler flows through electric current and is luminous, thereby makes also conducting of optical coupling secondary edges, output low level; When switch disconnects, not conducting of loop, also not conducting of optical coupling secondary edges, output high level.Realized of the conversion of break-make type switching value to level type switching value.
When switching levels type switching value, with 1, the 2 pin short circuits of short-circuit block with three pin connectors, two pin connectors do not add short-circuit block.When switching value is high level, 1,2 pin of connector, the loop is formed on the former limit of optocoupler, current-limiting resistance, and the light-emitting diode on the former limit of optocoupler flows through electric current and luminous, thereby makes also conducting of optical coupling secondary edges, output low level; When switching value was low level, 2 current potentials in the former limit of optocoupler were identical, and the loop no current passes through, also not conducting of optical coupling secondary edges, output high level.
Wherein, the value of current-limiting resistance is 2.5K, and the resistance of pull-up resistor is 15K.Optocoupler has 4 paths, and frequency is more than 1Mhz.
The present invention is further described below in conjunction with drawings and Examples.
Apparatus of the present invention include 24V power module 1, switching value signal input part 2, three pin connectors 3, two pin connectors 4, pi mode filter 5, current-limiting resistance 6, optocoupler 7,5V power module 8, pull-up resistor 9.Variable connector amount ALT-CH alternate channel is arranged in the device, and each road ALT-CH alternate channel is dissimilar according to switching value, need carry out different settings.
When conversion break-make type switching value, with 2, the 3 pin short circuits of short-circuit block with three pin connectors 3, two pin connectors 4 add short-circuit block.During switch closure, 2,3 pins of the former limit of the 24V of power module 1 output, two pin connectors 4, optocoupler 7, current-limiting resistance 6, three pin connectors 3 and the negative pole of power module are formed the loop, the light-emitting diode on the former limit of optocoupler flows through electric current and is luminous, thereby makes also conducting of optical coupling secondary edges; When switch disconnects, not conducting of loop, also not conducting of optical coupling secondary edges.Realized of the conversion of break-make type switching value to level type switching value.Filter 5 has been eliminated the pulsation of switching value in transmission course and has been disturbed.Power module 8 output voltages of the secondary of optocoupler 7 are 5V, and during the secondary conducting, signal output part is connected with ground, output 0V; During not conducting of secondary, signal output part by on move 5V to, thereby finished by of the conversion of disconnected type switching value to the level type switching value of the electrical standard that meets TTL, DTL compatibility.
When switching levels type switching value, with 1, the 2 pin short circuits of short-circuit block with three pin connectors 3, two pin connectors 4 do not add short-circuit block.When switching value is high level, 1,2 pins of three pin connectors, loops are formed on the former limit of optocoupler 7, current-limiting resistance 6, and the light-emitting diode on the former limit of optocoupler flows through electric current and luminous, thereby makes also conducting of optical coupling secondary edges; When switching value was low level, 2 current potentials in the former limit of optocoupler were identical, and the loop no current passes through, also not conducting of optical coupling secondary edges.Filter has been eliminated the pulsation of switching value in transmission course and has been disturbed.Power module 8 output voltages of optical coupling secondary edges are 5V, and during the secondary conducting, output is connected with ground, output 0V; During not conducting of secondary, output through on move 5V to, thereby finished by of the conversion of level type switching value to the level type switching value of the electrical standard that meets TTL, DTL compatibility.
Claims (4)
1. general multi-channel switch energy converter, comprise power module, three pin connectors, Pi mode filter, current-limiting resistance and optocoupler, it is characterized in that: three pins of three pin connectors are connected with the both positive and negative polarity and the switching value signal of power module respectively, switching value signal common port is connected with the negative input end of optocoupler by current-limiting resistance, connects the Pi mode filter between the positive and negative input of optocoupler; The output of optocoupler is the OC door, receives 5V by a pull-up resistor.
2. general multi-channel switch energy converter according to claim 1 is characterized in that: when conversion break-make type switching value, with power cathode and switching value signal short circuit, two pin connectors add short-circuit block.
3. general multi-channel switch energy converter according to claim 1 is characterized in that: when switching levels type switching value, with switching value signal and optocoupler positive input terminal short circuit, two pin connectors do not add short-circuit block.
4. general multi-channel switch energy converter according to claim 1 is characterized in that: the value of described current-limiting resistance is 2.5K, and the resistance of pull-up resistor is 15K; Optocoupler has 4 paths, and frequency is more than 1MHz.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110058173 CN102244515B (en) | 2011-03-10 | 2011-03-10 | Universal multi-channel switching value converter |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110058173 CN102244515B (en) | 2011-03-10 | 2011-03-10 | Universal multi-channel switching value converter |
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| CN102244515A true CN102244515A (en) | 2011-11-16 |
| CN102244515B CN102244515B (en) | 2013-06-05 |
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| CN 201110058173 Expired - Fee Related CN102244515B (en) | 2011-03-10 | 2011-03-10 | Universal multi-channel switching value converter |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103580671A (en) * | 2013-10-24 | 2014-02-12 | 秦皇岛博硕光电设备股份有限公司 | NPN/PNP on-off signal converter |
| CN104716950A (en) * | 2015-03-02 | 2015-06-17 | 苏州市职业大学 | Multifunctional signal input isolating circuit |
| CN105116200A (en) * | 2015-09-24 | 2015-12-02 | 深圳市法马新智能设备有限公司 | Detection circuit compatible with switching value and level amount |
| CN105487417A (en) * | 2015-12-18 | 2016-04-13 | 浙江大华系统工程有限公司 | Switching quantity output circuit |
| CN105807686A (en) * | 2016-04-05 | 2016-07-27 | 中国船舶重工集团公司第七〇二研究所 | General isolating type on-off input and output module |
| CN109375536A (en) * | 2018-09-27 | 2019-02-22 | 郑州华力信息技术有限公司 | Multifunctional status amount detection module device |
| CN112992619A (en) * | 2021-02-07 | 2021-06-18 | 青岛博宁福田智能交通科技发展有限公司 | Emergency button switch interface and subway gate |
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| CN1725401A (en) * | 2005-06-10 | 2006-01-25 | 天津市百利电气有限公司 | Automatic change-over switch |
| CN101178985A (en) * | 2007-11-09 | 2008-05-14 | 天津市百利电气有限公司 | Automatic change-over and control method with self-diagnosis output function |
| CN201434988Y (en) * | 2009-05-09 | 2010-03-31 | 华通机电集团有限公司 | Automatic transfer switch controller with integrated fire control |
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| CN2482094Y (en) * | 2001-05-23 | 2002-03-13 | 上海电器科学研究所 | Power supply phase interruption testing device of automatic change-over switch electric appliance |
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| CN101178985A (en) * | 2007-11-09 | 2008-05-14 | 天津市百利电气有限公司 | Automatic change-over and control method with self-diagnosis output function |
| CN201434988Y (en) * | 2009-05-09 | 2010-03-31 | 华通机电集团有限公司 | Automatic transfer switch controller with integrated fire control |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103580671A (en) * | 2013-10-24 | 2014-02-12 | 秦皇岛博硕光电设备股份有限公司 | NPN/PNP on-off signal converter |
| CN103580671B (en) * | 2013-10-24 | 2017-09-19 | 秦皇岛博硕光电设备股份有限公司 | NPN/PNP on-off model converters |
| CN104716950A (en) * | 2015-03-02 | 2015-06-17 | 苏州市职业大学 | Multifunctional signal input isolating circuit |
| CN104716950B (en) * | 2015-03-02 | 2018-05-22 | 苏州市职业大学 | A kind of multifunctional signal input isolation circuit |
| CN105116200A (en) * | 2015-09-24 | 2015-12-02 | 深圳市法马新智能设备有限公司 | Detection circuit compatible with switching value and level amount |
| CN105487417A (en) * | 2015-12-18 | 2016-04-13 | 浙江大华系统工程有限公司 | Switching quantity output circuit |
| CN105487417B (en) * | 2015-12-18 | 2018-03-23 | 浙江大华系统工程有限公司 | A kind of switching value output circuit |
| CN105807686A (en) * | 2016-04-05 | 2016-07-27 | 中国船舶重工集团公司第七〇二研究所 | General isolating type on-off input and output module |
| CN105807686B (en) * | 2016-04-05 | 2018-08-10 | 中国船舶重工集团公司第七一二研究所 | A kind of general isolated form On-off signal output module |
| CN109375536A (en) * | 2018-09-27 | 2019-02-22 | 郑州华力信息技术有限公司 | Multifunctional status amount detection module device |
| CN112992619A (en) * | 2021-02-07 | 2021-06-18 | 青岛博宁福田智能交通科技发展有限公司 | Emergency button switch interface and subway gate |
| CN112992619B (en) * | 2021-02-07 | 2022-06-03 | 青岛博宁福田智能交通科技发展有限公司 | Emergency button switch interface and subway floodgate machine |
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| CN102244515B (en) | 2013-06-05 |
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