CN102566610A - Water level controller made of NE555 integrated circuit - Google Patents
Water level controller made of NE555 integrated circuit Download PDFInfo
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- CN102566610A CN102566610A CN2012100373597A CN201210037359A CN102566610A CN 102566610 A CN102566610 A CN 102566610A CN 2012100373597 A CN2012100373597 A CN 2012100373597A CN 201210037359 A CN201210037359 A CN 201210037359A CN 102566610 A CN102566610 A CN 102566610A
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Abstract
The invention belongs to the technical field of electronic control and relates to a water level controller made of a NE555 integrated circuit. The water level controller comprises a 12V DC (direct current) power supply, a detecting electrode circuit, a Schimtt trigger circuit, a relay, a control circuit of the relay and a working state indicating circuit. For a conventional automatic water pumping control device for a water tower, three or more water level detection signal wires are commonly used as detecting signal wires. The water tower or a water tank is far away from a water pump or a control cabinet, and thus, for saving the wires, reducing the difficulty of wiring and ensuring the daily maintenance convenient to carry out, a water level automatic control circuit with three detecting electrodes is formed only by two detecting signal wires and is used for controlling the automatic operation of the water pump. The detecting signal wires of the circuit are simplified, so that the reliability of the operation of the circuit is further strengthened.
Description
Technical field
The invention belongs to the electron controls technology field, is about a kind of water level controller with the NE555 production of integrated circuits.
Background technology
Device for controlling water level is widely used in little high-rise water storage in city or secondary water-supply, also is applied to the automatic control of liquid or the liquid level warning such as water tower, water tank, tank of industrial and mining enterprises, and controlled medium can be clear water or conducting solution.Overflowing and vaccuum phenomenon takes place for fear of liquid, be the conservation of power energy also, has many water towers still to prolong with manual type control water pump and draws water, and this method is difficult to realize water level control requirement promptly and accurately, and time-consuming, require great effort, take.The past water tower is controlled the device that draws water automatically, and its detectable signal line uses the water-level detecting signal wire more than 3 or 3 mostly.Because water tower or water tank are far away apart from the distance of water pump or switch board; In order to save wire rod and to reduce the difficulty that connects up and make things convenient for daily servicing; The present invention only forms the water level automatic control circuit of 3 exploring electrodes with two detectable signal lines, be used for controlling the automatic operation of water pump.Because of the detectable signal line of circuit is simplified, thereby further strengthened the circuit reliability of operation.
Below specify the correlation technique content that in implementation process, relates to the water level controller of NE555 production of integrated circuits of the present invention.
Summary of the invention
Goal of the invention and beneficial effect: the past water tower is controlled the device that draws water automatically, and its detectable signal line uses the water-level detecting signal wire more than 3 or 3 mostly.Because water tower or water tank are far away apart from the distance of water pump or switch board; In order to save wire rod and to reduce the difficulty that connects up and make things convenient for daily servicing; The present invention only forms the water level automatic control circuit of 3 exploring electrodes with two detectable signal lines, be used for controlling the automatic operation of water pump.Because of the detectable signal line of circuit is simplified, thereby further strengthened the circuit reliability of operation.
The circuit working principle: the time base circuit IC1 in the accompanying drawing 1 is connected into schmidt trigger circuit, utilizes its return difference characteristic to reach circuit state and keeps, and electrochemical capacitor C1 is the interference on the elimination detectable signal line, and relay J is the working power that is used for controlling water pump.
Automatically draw water: when the decline of water table of water tower is lower than exploring electrode C; Exploring electrode C is unsettled, and 2 pin of time base circuit IC1 are lower than 1/3VCC, the 3 pin output high level of time base circuit IC1; LED is lighted; The coil of relay J gets and makes the normally opened contact adhesive after electric, connects pump power and begins to draw water, and the water level of water tower rises gradually;
Circuit state keeps: when water level rises to exploring electrode B between exploring electrode C the time; Voltage stabilizing diode DW is connected in series into circuit; A point current potential is controlled in about 1/2 direct supply VCC in the circuit at this moment, and it is constant that Schmitt trigger circuit will continue the original duty of maintenance;
Stop pumping: when water level rises to exploring electrode A; Because the resistance of water is less, the current potential that a is ordered in the circuit so is higher than 2/3VCC, the 3 pin output low levels of time base circuit IC1; LED extinguishes; The coil blackout of relay J and normally opened contact is discharged, Pump Failure stops pumping, and so circulation can reach automatically the purpose of drawing water, keep water level.
Technical scheme: with the water level controller of NE555 production of integrated circuits, comprise 12V direct supply, exploring electrode circuit, schmidt trigger circuit, relay and control circuit thereof, duty indicating circuit, it is characterized in that:
Exploring electrode circuit: constitute by exploring electrode A, exploring electrode B, exploring electrode C and voltage stabilizing diode DW; The negative pole of exploring electrode A, voltage stabilizing diode DW links to each other with the positive pole of electrochemical capacitor C1 and the anodal VCC of 12V direct supply; The positive pole of voltage stabilizing diode DW meets exploring electrode B, and exploring electrode C connects the negative pole of electrochemical capacitor C1;
Schmidt trigger circuit: the negative pole of a termination electrochemical capacitor C1 of the 2nd pin of time base circuit IC1 and the 6th pin and resistance R 1; The other end connection circuit ground GND of the 1st pin of time base circuit IC1 and resistance R 1; The positive pole of electrochemical capacitor C1 meets the anodal VCC of 12V direct supply, and the 4th pin of time base circuit IC1 and the 8th pin meet the anodal VCC of 12V direct supply;
Relay and control circuit thereof: the end of the 3rd pin connecting resistance R2 of time base circuit IC1; The base stage of another termination NPN type triode VT1 of resistance R 2; One end of the collector connecting relay J coil of NPN type triode VT1 and the positive pole of silicon rectifier diode D1; The negative pole of the other end of relay J coil and silicon rectifier diode D1 meets the anodal VCC of 12V direct supply, the emitter connection circuit ground GND of NPN type triode VT1.
The duty indicating circuit: the positive pole of LED connects the base stage of NPN type triode VT1, the negative pole connection circuit ground GND of LED.
Description of drawings
Accompanying drawing 1 is that the present invention provides an embodiment circuit working schematic diagram with the water level controller of NE555 production of integrated circuits.
Embodiment
According to shown in the accompanying drawing 1 with the circuit working schematic diagram and the description of drawings of the water level controller of NE555 production of integrated circuits; And according to the described each several part circuit of foregoing invention content form and circuit in annexation between the components and parts, and the described components and parts technical parameter of embodiment requires to implement to realize the present invention.
The selection of components and parts and technical parameter thereof
IC1 is a time base circuit, and model is NE555, is 8 pin DIP encapsulation, and each pin function is: 1 pin is circuit ground; 2 pin are trigger end; 3 pin output terminals; 4 pin preset ends; 5 pin are control voltage; 6 pin thresholdings (threshold value); 7 pin are discharge end; 8 pin are positive source;
VT1 is a NPN type triode, selects NPN type triodes such as 2SC9013 or 3DG12 for use, requires current amplification factor β＞100;
DW is a voltage stabilizing diode, requires voltage stabilizing value 6V, power 0.5W;
D1 is a silicon rectifier diode, and model is 1N4001; LED is ￠ 5 red light emitting diodes;
Resistance is all selected the 1/4W metalfilmresistor for use, and the resistance of resistance R 1 is 22K Ω, and the resistance of resistance R 2 is 1.2K Ω;
C1 is an electrochemical capacitor, and its capacity is respectively 4.7 μ F/16V;
J is the 12V DC relay, and it has 5 pins, and the coil of relay J has 2 pins, and its power output has 3 pins, and 3 pins are respectively: the common of relay J (moving contact), stationary contact are divided into normally opened contact and normally closed contact;
The 12V direct supply can be selected the 12V D.C. regulated power supply for use, requires output current >=300mA.
Circuit production main points and circuit debugging
The making of exploring electrode: A is the peak level exploring electrode, and C is the lowest water level exploring electrode.Water-level detection eletrode A, exploring electrode B, exploring electrode C all make with the ￠ 1.5mm single strand of copper wire of peelling off rubber, are fixed on the appropriate location of water tower with insulating material.Require exploring electrode A, exploring electrode B and exploring electrode C to lean on more each other, but 3 exploring electrodes can not contact each other, and require 3 exploring electrode drainings effective, otherwise influence the reliability of circuit working;
The height of 3 exploring electrode installations should confirm according to actual needs that adjustment runs to peak level, lowest water level and all reaches till the technical requirement;
Fairly simple because of circuit structure with the water level controller of NE555 production of integrated circuits, make and be easier to; General as long as use the performance of components and parts intact; The physical connection of components and parts is correct, but the circuit of general water level controller itself need not carry out just operate as normal of any debugging.
Claims (2)
1. the water level controller with the NE555 production of integrated circuits comprises 12V direct supply, exploring electrode circuit, schmidt trigger circuit, relay and control circuit thereof, duty indicating circuit, it is characterized in that:
The exploring electrode circuit is made up of exploring electrode A, exploring electrode B, exploring electrode C and voltage stabilizing diode DW; The negative pole of exploring electrode A, voltage stabilizing diode DW links to each other with the positive pole of electrochemical capacitor C1 and the anodal VCC of 12V direct supply; The positive pole of voltage stabilizing diode DW meets exploring electrode B, and exploring electrode C connects the negative pole of electrochemical capacitor C1;
The negative pole of one termination electrochemical capacitor C1 of the 2nd pin of the time base circuit IC1 in the schmidt trigger circuit and the 6th pin and resistance R 1; The other end connection circuit ground GND of the 1st pin of time base circuit IC1 and resistance R 1; The positive pole of electrochemical capacitor C1 meets the anodal VCC of 12V direct supply, and the 4th pin of time base circuit IC1 and the 8th pin meet the anodal VCC of 12V direct supply;
The end of the 3rd pin connecting resistance R2 of time base circuit IC1 in relay and the control circuit thereof; The base stage of another termination NPN type triode VT1 of resistance R 2; One end of the collector connecting relay J coil of NPN type triode VT1 and the positive pole of silicon rectifier diode D1; The negative pole of the other end of relay J coil and silicon rectifier diode D1 meets the anodal VCC of 12V direct supply, the emitter connection circuit ground GND of NPN type triode VT1.
2. the water level controller with the NE555 production of integrated circuits according to claim 1 is characterized in that: the positive pole of LED connects the base stage of NPN type triode VT1 in the duty indicating circuit, the negative pole connection circuit ground GND of LED.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100373597A CN102566610A (en) | 2012-02-18 | 2012-02-18 | Water level controller made of NE555 integrated circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100373597A CN102566610A (en) | 2012-02-18 | 2012-02-18 | Water level controller made of NE555 integrated circuit |
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| CN102566610A true CN102566610A (en) | 2012-07-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2012100373597A Pending CN102566610A (en) | 2012-02-18 | 2012-02-18 | Water level controller made of NE555 integrated circuit |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103576709A (en) * | 2013-11-09 | 2014-02-12 | 安徽神剑新材料股份有限公司 | Automatic water feeding device for QUV accelerated aging instrument |
| CN105116928A (en) * | 2015-08-13 | 2015-12-02 | 蔡勇 | Novel water tank automatic pumping controller |
| CN105386515A (en) * | 2015-12-09 | 2016-03-09 | 成都翰道科技有限公司 | Underground parking lot auxiliary drainage system based on short-circuit protection circuit |
| CN110966155A (en) * | 2019-12-24 | 2020-04-07 | 赵华勇 | Double-purpose straight-flow pump |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102147624A (en) * | 2011-05-17 | 2011-08-10 | 刘昭利 | Water level controller with two detecting lines |
-
2012
- 2012-02-18 CN CN2012100373597A patent/CN102566610A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102147624A (en) * | 2011-05-17 | 2011-08-10 | 刘昭利 | Water level controller with two detecting lines |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103576709A (en) * | 2013-11-09 | 2014-02-12 | 安徽神剑新材料股份有限公司 | Automatic water feeding device for QUV accelerated aging instrument |
| CN105116928A (en) * | 2015-08-13 | 2015-12-02 | 蔡勇 | Novel water tank automatic pumping controller |
| CN105386515A (en) * | 2015-12-09 | 2016-03-09 | 成都翰道科技有限公司 | Underground parking lot auxiliary drainage system based on short-circuit protection circuit |
| CN110966155A (en) * | 2019-12-24 | 2020-04-07 | 赵华勇 | Double-purpose straight-flow pump |
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Application publication date: 20120711 |