CN101895219A - Pulse trigger type master control signal level converter and application method thereof - Google Patents
Pulse trigger type master control signal level converter and application method thereof Download PDFInfo
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- CN101895219A CN101895219A CN 201010232956 CN201010232956A CN101895219A CN 101895219 A CN101895219 A CN 101895219A CN 201010232956 CN201010232956 CN 201010232956 CN 201010232956 A CN201010232956 A CN 201010232956A CN 101895219 A CN101895219 A CN 101895219A
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Abstract
The invention belongs to the technical field of crane controllers, and in particular relates to a pulse trigger type master control signal level converter and an application method thereof. A 220V alternating current control signal from a master is subjected to current limiting by R1, R2 and R3 and is rectified by a light emitting diode in a photoelectric coupler so that a square wave signal serving as trigger pulse of a monostable integrated circuit U1 is output between output ends C and E of the photoelectric coupler; and a pin 13 of the integrated circuit U1 outputs high level to switch on a triode T1 so as to generate the trigger pulse once every 20ms, so that the pin 13 of the integrated circuit U1 can output high level constantly. When the master signal disappears, the integrated circuit U1 cannot receive the trigger pulse and outputs low level to switch off the triode T. Thus the conversion from the 220V alternating current level to low voltage direct current level is realized. Due to the adoption of a photoelectric isolator, the alternating current signal side is completely isolated from the direct current level side in voltage. The converter can be used for crane speed regulating controllers, frequency converters special for cranes and the occasions requiring the alternating current voltage-direct current level conversion such as programmable logic controllers (PLC) and the like.
Description
Technical field
The invention belongs to the crane controller technical field, particularly relate to a kind of pulse trigger type master control signal level converter and application process thereof.
Background technology
Existing crane controller adopts master controller to import as control signal usually.The input voltage of master controller is alternating current 220V AC.In order to guarantee handling safety, the input terminal of controller normally adopts+12V or+the 24V direct voltage.The main order adopts signal and being connected of controller a plurality of auxiliary relays as the main level conversion that makes signal.There are following defectives in this kind mode:
1) peripheral distribution complexity, the repair and maintenance inconvenience;
2) response speed is slow.Issue a signal to the actuating of relay from main order and receive signal to controller again, time-delay therebetween reaches more than the 200ms usually, is not suitable for the occasion of quick response requirement.
3) reliability is not high.Because relay tip exists oxidation and electric spark galvanic corrosion, has hidden danger such as loose contact, there is shake to produce during contact action simultaneously.
Summary of the invention
The object of the present invention is to provide a kind of pulse trigger type master control signal level converter.
Another object of the present invention is to provide a kind of application process of pulse trigger type master control signal level converter.The present invention is applicable to that crane makes the signal input with the master of speed setting controller, lifting special converter.Simplified the peripheral distribution of lifting electrical control cubicles widely, and improved response speed and reliable in action, reduced and produce and maintenance cost.
The objective of the invention is to be achieved through the following technical solutions.
Pulse trigger type master control signal level converter of the present invention, an end that it is characterized in that the AC signal that independently makes is that the power supply phase line is connected with sampling resistor R1 one end, the other end of this resistance R 1 is connected with an end of resistance R 2, the other end of this resistance R 2 is connected with resistance R 3, the other end of this resistance R 3 respectively with photoelectrical coupler PC1 in the light-emitting diodes tube anode, the negative electrode of diode D1 is connected, the negative electrode of the light-emitting diode among this photoelectrical coupler PC1 anode of the diode D1 back that is connected therewith is that zero-power line is connected with the other end of the AC signal that independently makes, above circuit forms the main input that makes signal
The collector electrode of the triode in the described photoelectrical coupler PC1 respectively with an end of resistance R 4, one end of capacitor C 1,1 pin of integrated circuit U1 is connected, the emitter of the triode in the described photoelectrical coupler PC1 respectively with the other end of described capacitor C 1,8 pin of integrated circuit U1 are connected and ground connection, the other end of described resistance R 4 respectively with an end of resistance R 5,2 of integrated circuit U1,3 pin link to each other and are connected to power supply VCC, the other end of this resistance R 5 respectively with an end of capacitor C 2,15 pin of integrated circuit U1 are connected, the other end of this capacitor C 2 is connected with 14 pin of integrated circuit U1,16 pin of integrated circuit U1 link to each other with an end of capacitor C 3 and are connected to power supply VCC, the other end ground connection of this capacitor C 3,13 pin of integrated circuit U1 are connected with an end of resistance R 6, the other end of this resistance R 6 is connected with the base stage of triode T1, the grounded emitter of this triode T1, the collector electrode of this triode T1 is as open circuit output.
The described AC signal that independently makes is the 220V AC signal, and described power supply phase line is a 220V power supply phase line, and described zero-power line is the 220V zero-power line.
A kind of application process of pulse trigger type master control signal level converter, it is characterized in that described pulse trigger type master control signal level converter is designed to element circuit, make the actual needs of signal that element circuit quantity is set according to main, each element circuit parallel connection is become master controller, and the output of each element circuit is connected with an input of speed setting controller respectively.
Described master controller is the fourth gear master controller: the main zero-bit element circuit that makes, the master makes 1 grade of positive element circuit, the master makes 1 grade of anti-element circuit, the master makes 2 grades of element circuits, the master makes 3 grades of element circuits, the master makes 4 grades of element circuits, totally 6 element circuits, this master makes the output of zero-bit element circuit be connected with the DIO mouth of speed setting controller, the master makes the output of 1 grade of positive element circuit be connected with the DCOM mouth of speed setting controller, the master makes the output of 1 grade of anti-element circuit be connected with the DI1R mouth of speed setting controller, the master makes the output of 2 grades of element circuits be connected with the DI2 mouth of speed setting controller, the master makes the output of 3 grades of element circuits be connected with the DI3 mouth of speed setting controller, and the master makes the output of 4 grades of element circuits be connected with the DI4 mouth of speed setting controller.
The course of work of the present invention is as follows: the 220V AC controling signal that independently makes, through R1, R2, R3 current limliting, light-emitting diode rectification in the photoelectrical coupler is exported square-wave signal between photoelectric coupler output end C, E.This square-wave signal is as the trigger impulse of monostable integrated circuit U1.Monostable trigger-action circuit hold time for:
Tw＝0.45×R5×C2
It is about 30ms that the parameter of selection R5, C2 makes the Tw that holds time.When triggering signal was arranged, 13 pin of integrated circuit U1 output high level made triode T1 conducting.When the master made signal voltage exist, every 20ms produced a trigger impulse, makes 13 pin of integrated circuit U1 keep the output high level.When the master made blackout, integrated circuit U1 can not receive trigger impulse at Tw in the time, the 13 pin outputs upset of U1, and output low level is ended triode T1.Realized that so promptly 220V exchanges the conversion of level to low-voltage DC level.Owing to adopted photoisolator, AC signal side and DC level side are complete voltage isolation.
The present invention not only can be used for crane speed setting controller, crane special converter, also can be used for the occasion that programmable logic controller (PLC) (PLC) etc. needs alternating voltage-DC level conversion.
The present invention has simplified the peripheral distribution of lifting electrical control cubicles widely, and has improved response speed and reliable in action, has reduced production and maintenance cost.
Description of drawings
Fig. 1 is a schematic diagram of the present invention.
Fig. 2 is a concrete application block diagram of the present invention.
Embodiment
Describe the specific embodiment of the present invention in detail below in conjunction with accompanying drawing.
As shown in Figure 1, pulse trigger type master control signal level converter of the present invention, an end that it is characterized in that the AC signal that independently makes is that the power supply phase line is connected with sampling resistor R1 one end, the other end of this resistance R 1 is connected with an end of resistance R 2, the other end of this resistance R 2 is connected with resistance R 3, the other end of this resistance R 3 respectively with photoelectrical coupler PC1 in the light-emitting diodes tube anode, the negative electrode of diode D1 is connected, the negative electrode of the light-emitting diode among this photoelectrical coupler PC1 anode of the diode D1 back that is connected therewith is that zero-power line is connected with the other end of the AC signal that independently makes, above circuit forms the main input that makes signal
The collector electrode of the triode in the described photoelectrical coupler PC1 respectively with an end of resistance R 4, one end of capacitor C 1,1 pin of integrated circuit U1 is connected, the emitter of the triode in the described photoelectrical coupler PC1 respectively with the other end of described capacitor C 1,8 pin of integrated circuit U1 are connected and ground connection, the other end of described resistance R 4 respectively with an end of resistance R 5,2 of integrated circuit U1,3 pin link to each other and are connected to power supply VCC, the other end of this resistance R 5 respectively with an end of capacitor C 2,15 pin of integrated circuit U1 are connected, the other end of this capacitor C 2 is connected with 14 pin of integrated circuit U1,16 pin of integrated circuit U1 link to each other with an end of capacitor C 3 and are connected to power supply VCC, the other end ground connection of this capacitor C 3,13 pin of integrated circuit U1 are connected with an end of resistance R 6, the other end of this resistance R 6 is connected with the base stage of triode T1, the grounded emitter of this triode T1, the collector electrode of this triode T1 is as open circuit output.
The described AC signal that independently makes is the 220V AC signal, and described power supply phase line is a 220V power supply phase line, and described zero-power line is the 220V zero-power line.
A kind of application process of pulse trigger type master control signal level converter, it is characterized in that described pulse trigger type master control signal level converter is designed to element circuit, make the actual needs of signal that element circuit quantity is set according to main, each element circuit parallel connection is become master controller, and the output of each element circuit is connected with an input of speed setting controller respectively.
The course of work of the present invention is as follows: the 220V AC controling signal that independently makes, through R1, R2, R3 current limliting, light-emitting diode rectification in the photoelectrical coupler is exported square-wave signal between photoelectric coupler output end C, E.This square-wave signal is as the trigger impulse of monostable integrated circuit U1.Monostable trigger-action circuit hold time for:
Tw＝0.45×R5×C2
It is about 30ms that the parameter of selection R5, C2 makes the Tw that holds time.When triggering signal was arranged, 13 pin of integrated circuit U1 output high level made triode T1 conducting.When the master made signal voltage exist, every 20ms produced a trigger impulse, makes 13 pin of integrated circuit U1 keep the output high level.When the master made blackout, integrated circuit U1 can not receive trigger impulse at Tw in the time, the 13 pin outputs upset of U1, and output low level is ended triode T1.Realized that so promptly 220V exchanges the conversion of level to low-voltage DC level.Owing to adopted photoisolator, AC signal side and DC level side are complete voltage isolation.
Application Example
Fig. 2 has provided an Application Example of the present invention.The present invention is designed to element circuit, makes the actual needs of signal that element number is set according to main.As having designed for example with the fourth gear master controller in this example: main make zero-bit, main make 1 grade just, main make 1 grade anti-, main make 2 grades, main make 3 grades, mainly make 4 grades, Unit totally 6.
As shown in Figure 2, described master controller is the fourth gear master controller: the main zero-bit element circuit that makes, the master makes 1 grade of positive element circuit, the master makes 1 grade of anti-element circuit, the master makes 2 grades of element circuits, the master makes 3 grades of element circuits, the master makes 4 grades of element circuits, totally 6 element circuits, this master makes the output of zero-bit element circuit be connected with the DIO mouth of speed setting controller, the master makes the output of 1 grade of positive element circuit be connected with the DCOM mouth of speed setting controller, the master makes the output of 1 grade of anti-element circuit be connected with the DI1R mouth of speed setting controller, the master makes the output of 2 grades of element circuits be connected with the DI2 mouth of speed setting controller, the master makes the output of 3 grades of element circuits be connected with the DI3 mouth of speed setting controller, and the master makes the output of 4 grades of element circuits be connected with the DI4 mouth of speed setting controller.
The present invention not only can be used for crane speed setting controller, crane special converter, also can be used for the occasion that programmable logic controller (PLC) (PLC) etc. needs alternating voltage-DC level conversion.
Claims (4)
1. pulse trigger type master control signal level converter, an end that it is characterized in that the AC signal that independently makes is that the power supply phase line is connected with sampling resistor R1 one end, the other end of this resistance R 1 is connected with an end of resistance R 2, the other end of this resistance R 2 is connected with resistance R 3, the other end of this resistance R 3 respectively with photoelectrical coupler PC1 in the light-emitting diodes tube anode, the negative electrode of diode D1 is connected, the negative electrode of the light-emitting diode among this photoelectrical coupler PC1 anode of the diode D1 back that is connected therewith is that zero-power line is connected with the other end of the AC signal that independently makes, above circuit forms the main input that makes signal
The collector electrode of the triode in the described photoelectrical coupler PC1 respectively with an end of resistance R 4, one end of capacitor C 1,1 pin of integrated circuit U1 is connected, the emitter of the triode in the described photoelectrical coupler PC1 respectively with the other end of described capacitor C 1,8 pin of integrated circuit U1 are connected and ground connection, the other end of described resistance R 4 respectively with an end of resistance R 5,2 of integrated circuit U1,3 pin link to each other and are connected to power supply VCC, the other end of this resistance R 5 respectively with an end of capacitor C 2,15 pin of integrated circuit U1 are connected, the other end of this capacitor C 2 is connected with 14 pin of integrated circuit U1,16 pin of integrated circuit U1 link to each other with an end of capacitor C 3 and are connected to power supply VCC, the other end ground connection of this capacitor C 3,13 pin of integrated circuit U1 are connected with an end of resistance R 6, the other end of this resistance R 6 is connected with the base stage of triode T1, the grounded emitter of this triode T1, the collector electrode of this triode T1 is as open circuit output.
2. pulse trigger type master control signal level converter according to claim 1, it is characterized in that the described AC signal that independently makes is the 220V AC signal, described power supply phase line is a 220V power supply phase line, and described zero-power line is the 220V zero-power line.
3. the application process of a pulse trigger type master control signal level converter according to claim 1, it is characterized in that described pulse trigger type master control signal level converter is designed to element circuit, make the actual needs of signal that element circuit quantity is set according to main, each element circuit parallel connection is become master controller, and the output of each element circuit is connected with an input of speed setting controller respectively.
4. the application process of pulse trigger type master control signal level converter according to claim 3, it is characterized in that described master controller is the fourth gear master controller: the main zero-bit element circuit that makes, the master makes 1 grade of positive element circuit, the master makes 1 grade of anti-element circuit, the master makes 2 grades of element circuits, the master makes 3 grades of element circuits, the master makes 4 grades of element circuits, totally 6 element circuits, this master makes the output of zero-bit element circuit be connected with the DIO mouth of speed setting controller, the master makes the output of 1 grade of positive element circuit be connected with the DCOM mouth of speed setting controller, the master makes the output of 1 grade of anti-element circuit be connected with the DI1R mouth of speed setting controller, the master makes the output of 2 grades of element circuits be connected with the DI2 mouth of speed setting controller, the master makes the output of 3 grades of element circuits be connected with the DI3 mouth of speed setting controller, and the master makes the output of 4 grades of element circuits be connected with the DI4 mouth of speed setting controller.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010102329566A CN101895219B (en) | 2010-07-22 | 2010-07-22 | Pulse trigger type master control signal level converter and application method thereof |
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| CN2010102329566A CN101895219B (en) | 2010-07-22 | 2010-07-22 | Pulse trigger type master control signal level converter and application method thereof |
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| CN101895219B CN101895219B (en) | 2012-08-08 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102773709A (en) * | 2012-07-27 | 2012-11-14 | 齐齐哈尔齐一机工业产品有限公司 | Combined worktable of numerical control turning and milling machine tool |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5710531A (en) * | 1980-06-20 | 1982-01-20 | Toshiba Corp | Level conversion circuit |
| US5444408A (en) * | 1993-12-13 | 1995-08-22 | Micron Technology, Inc. | Active pull-up voltage spike reducer |
| CN1206950A (en) * | 1998-05-29 | 1999-02-03 | 清华大学 | Dring power source for activating piezoelectric device |
| CN1787351A (en) * | 2005-11-22 | 2006-06-14 | 福建龙净环保股份有限公司 | Resonance switch driving controlling and protecting circuit |
| CN201742314U (en) * | 2010-07-22 | 2011-02-09 | 鞍山起重控制设备有限公司 | Pulse triggering master control signal level shifter |
-
2010
- 2010-07-22 CN CN2010102329566A patent/CN101895219B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5710531A (en) * | 1980-06-20 | 1982-01-20 | Toshiba Corp | Level conversion circuit |
| US5444408A (en) * | 1993-12-13 | 1995-08-22 | Micron Technology, Inc. | Active pull-up voltage spike reducer |
| CN1206950A (en) * | 1998-05-29 | 1999-02-03 | 清华大学 | Dring power source for activating piezoelectric device |
| CN1787351A (en) * | 2005-11-22 | 2006-06-14 | 福建龙净环保股份有限公司 | Resonance switch driving controlling and protecting circuit |
| CN201742314U (en) * | 2010-07-22 | 2011-02-09 | 鞍山起重控制设备有限公司 | Pulse triggering master control signal level shifter |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102773709A (en) * | 2012-07-27 | 2012-11-14 | 齐齐哈尔齐一机工业产品有限公司 | Combined worktable of numerical control turning and milling machine tool |
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| CN101895219B (en) | 2012-08-08 |
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Owner name: LIAONING GUOYUAN TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: ANSHAN CRANE CONTROLLERS CO., LTD. Effective date: 20150714 |
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Address after: 114051 Liaoning city of Anshan province high tech Zone Mountain Road No. 263 (North Building 8 floor 1-2) Patentee after: Liaoning AODA Intersoft Technology Co. Ltd. Address before: 427 No. 114000 Anshan city of Liaoning Province Qianshan District Tonghai Road Patentee before: LIAONING GUOYUAN ELECTRONICS CO., LTD. |
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