CN201742314U - Pulse triggering master control signal level shifter - Google Patents
Pulse triggering master control signal level shifter Download PDFInfo
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- CN201742314U CN201742314U CN2010202662174U CN201020266217U CN201742314U CN 201742314 U CN201742314 U CN 201742314U CN 2010202662174 U CN2010202662174 U CN 2010202662174U CN 201020266217 U CN201020266217 U CN 201020266217U CN 201742314 U CN201742314 U CN 201742314U
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Abstract
The utility model belongs to the technical field of a crane controller, and particularly relates to a pulse triggering master control signal level shifter. The 220V AC control signal from the master is limited by R1, R2 and R3 and rectified by the LED in a photocoupler, the square signal output from the output ends C and E of the photocoupler serves as the trigger pulse of a monostable integrated circuit U1, and the leg 13 of the integrated circuit U1 outputs high level, so as to conduct a triode T1, produce a trigger pulse every 20ms, and lead the leg 13 of the integrated circuit U1 to continue to output high level. When the master signal disappears, the integrated circuit U1 outputs low level as no trigger pulse is received, so as to cut off the triode T1. As a result, the shifting from 220V AC level to DC level is realized. As an optoelectronic isolator is adopted, the AC signal side is in complete voltage isolation with the DC level side. The utility model not only can be applied to a crane actuator and a crane special frequency converter, but also can be in a programmable logic controller (PLC) and the like in need of AC voltage-DC level shifting.
Description
Technical field
The utility model belongs to the crane controller technical field, particularly relates to a kind of pulse trigger type master control signal level converter.
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 drawbacks in this kind mode:
1) peripheral distribution complexity, repair and maintenance inconvenience;
2) response speed is slow.Issue a signal to the actuating of relay from main order and receive signal to control 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 purpose of this utility model is to provide a kind of pulse trigger type master control signal level converter, the master who is applicable to crane speed setting controller, lifting special converter makes the signal input, simplified the peripheral distribution of lifting electrical control cubicles widely, and improved response speed and reliable in action, reduced production and maintenance cost.
The purpose of this utility model is achieved through the following technical solutions.
Pulse trigger type master control signal level converter of the present utility model, 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.
Application process of the present utility model: 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 utility model 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 utility model 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 utility model has been 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 utility model.
Fig. 2 is a concrete application block diagram of the present utility model.
Embodiment
Describe embodiment of the present utility model in detail below in conjunction with accompanying drawing.
As shown in Figure 1, pulse trigger type master control signal level converter of the present utility model, 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.
Application process of the present utility model, 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.
In Application Example as shown in Figure 2, 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 utility model 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 (2)
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.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202662174U CN201742314U (en) | 2010-07-22 | 2010-07-22 | Pulse triggering master control signal level shifter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202662174U CN201742314U (en) | 2010-07-22 | 2010-07-22 | Pulse triggering master control signal level shifter |
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| Publication Number | Publication Date |
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| CN201742314U true CN201742314U (en) | 2011-02-09 |
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| CN2010202662174U Expired - Fee Related CN201742314U (en) | 2010-07-22 | 2010-07-22 | Pulse triggering master control signal level shifter |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101895219A (en) * | 2010-07-22 | 2010-11-24 | 鞍山起重控制设备有限公司 | Pulse trigger type master control signal level converter and application method thereof |
| CN103901358A (en) * | 2012-12-24 | 2014-07-02 | 赐福科技股份有限公司 | Three-phase power supply abnormality detection device |
| CN105207666A (en) * | 2015-10-30 | 2015-12-30 | 林肯电梯(中国)有限公司 | Signal conversion circuit |
| CN113985771A (en) * | 2021-10-25 | 2022-01-28 | 华能澜沧江水电股份有限公司 | Rolling slats door control system of total powerstation observation station |
-
2010
- 2010-07-22 CN CN2010202662174U patent/CN201742314U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101895219A (en) * | 2010-07-22 | 2010-11-24 | 鞍山起重控制设备有限公司 | Pulse trigger type master control signal level converter and application method thereof |
| CN101895219B (en) * | 2010-07-22 | 2012-08-08 | 鞍山起重控制设备有限公司 | Pulse trigger type master control signal level converter and application method thereof |
| CN103901358A (en) * | 2012-12-24 | 2014-07-02 | 赐福科技股份有限公司 | Three-phase power supply abnormality detection device |
| CN105207666A (en) * | 2015-10-30 | 2015-12-30 | 林肯电梯(中国)有限公司 | Signal conversion circuit |
| CN113985771A (en) * | 2021-10-25 | 2022-01-28 | 华能澜沧江水电股份有限公司 | Rolling slats door control system of total powerstation observation station |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: LIAONING GUOYUAN TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: ANSHAN CRANE CONTROLLERS CO., LTD. Effective date: 20150701 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20150701 Address after: 427 No. 114000 Anshan city of Liaoning Province Qianshan District Tonghai Road Patentee after: LIAONING GUOYUAN TECHNOLOGY CO., LTD. Address before: 114011, No. 18, Xin Jie Gong Road, Qianshan District, Liaoning, Anshan Patentee before: Anshan Crane Control Equipment Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110209 Termination date: 20160722 |