CN204425300U - Time control circuit - Google Patents
Time control circuit Download PDFInfo
- Publication number
- CN204425300U CN204425300U CN201520026683.8U CN201520026683U CN204425300U CN 204425300 U CN204425300 U CN 204425300U CN 201520026683 U CN201520026683 U CN 201520026683U CN 204425300 U CN204425300 U CN 204425300U
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- CN
- China
- Prior art keywords
- resistance
- electric capacity
- adjustable resistor
- time control
- control circuit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model relates to a kind of time control circuit, comprise power circuit and the operating circuit of series connection mutually, power circuit comprises transformer, rectifier bridge and the first electric capacity, the external 220V AC power of primary side of transformer, the secondary side of transformer is connected with the input of rectifier bridge, first electric capacity is in parallel with the output of rectifier bridge, and operating circuit comprises relay, triode, the first resistance, the second resistance, the 3rd resistance, the first adjustable resistor, the second adjustable resistor, the second electric capacity and push-button switch.This time control circuit stability is high, and antijamming capability is strong, has operability, and structure is simple, is applicable to multiple occasion, for providing great convenience property of industrial production and practicality.
Description
Technical field
The utility model relates to a kind of time control circuit.
Background technology
In industrial production, often need to carry out time controling, carry out temporal control to some operation, again due to industrial randomness and uncertainty, the adjustment for the time also there are certain requirements, and have operability.And in more severe industrial production environment, the antijamming capability for time control circuit also has certain requirement.Therefore it is high how to design a kind of stability, antijamming capability is strong, and structure is simple, and easy to operate, having the time control circuit of practicality, is a technical problem in industrial production.
Utility model content
The technical problems to be solved in the utility model is: in order to overcome prior art poor stability, antijamming capability is weak, and baroque deficiency provides a kind of time control circuit.
The utility model solves the technical scheme that its technical problem adopts: a kind of time control circuit, comprise power circuit and the operating circuit of series connection mutually, described power circuit comprises transformer, rectifier bridge and the first electric capacity, the external 220V AC power of primary side of described transformer, the secondary side of transformer is connected with the input of rectifier bridge, described first electric capacity is in parallel with the output of rectifier bridge, described operating circuit comprises relay, triode, first resistance, second resistance, 3rd resistance, first adjustable resistor, second adjustable resistor, second electric capacity and push-button switch, described relay, the series circuit of triode and the 3rd resistance composition and the first Capacitance parallel connection, described first adjustable resistor, the series circuit of the first resistance and the second electric capacity composition and the first Capacitance parallel connection, described shift knob is connected in parallel on the second electric capacity, the base stage of described triode is connected with the second resistance and second adjustable resistor of series connection mutually, described second adjustable resistor one end is connected with the second resistance, the other end of the second adjustable resistor is connected between the first resistance and the second electric capacity.
Particularly, the model of described triode is 9013.
Particularly, described first electric capacity is filter capacitor.
Particularly, the maximum resistance of described first adjustable resistor and the second adjustable resistor is 150 kilo-ohms.
The beneficial effects of the utility model are, this time control circuit stability is high, and antijamming capability is strong, has operability, and structure is simple, is applicable to multiple occasion, for providing great convenience property of industrial production and practicality.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is further illustrated.
Fig. 1 is the circuit theory diagrams of the utility model time control circuit;
In figure: 1. power circuit, 2. operating circuit, T. transformer, U. rectifier bridge, C1. first electric capacity, K. relay, Q. triode, R3. the 3rd resistance, R2. second resistance, R1. first resistance, RP1. the first adjustable resistor, RP2. second adjustable resistor, C2. second electric capacity, S. push-button switch.
Embodiment
By reference to the accompanying drawings the utility model is described in further detail now.These accompanying drawings are the schematic diagram of simplification, only basic structure of the present utility model are described in a schematic way, and therefore it only shows the formation relevant with the utility model.
As shown in Figure 1, a kind of time control circuit, comprise power circuit 1 and the operating circuit 2 of series connection mutually, described power circuit 1 comprises transformer T, rectifier bridge U and the first electric capacity C1, the external 220V AC power of primary side of described transformer T, the secondary side of transformer T is connected with the input of rectifier bridge U, described first electric capacity C1 is in parallel with the output of rectifier bridge U, described operating circuit 2 comprises relay K, triode Q, first resistance R1, second resistance R2, 3rd resistance R3, first adjustable resistor RP1, second adjustable resistor RP2, second electric capacity C2 and push-button switch S, described relay K, the series circuit that triode Q and the 3rd resistance R3 forms is in parallel with the first electric capacity C1, described first adjustable resistor RP1, the series circuit that first resistance R1 and the second electric capacity C2 forms is in parallel with the first electric capacity C1, described shift knob S is connected in parallel on the second electric capacity C2, the base stage of described triode Q is connected with the second resistance R2 and the second adjustable resistor RP2 of series connection mutually, described second adjustable resistor RP2 one end is connected with the second resistance R2, the other end of the second adjustable resistor RP2 is connected between the first resistance R1 and the second electric capacity C2.
Particularly, the model of described triode Q is 9013.
Particularly, described first electric capacity C1 is filter capacitor.
Particularly, the maximum resistance of described first adjustable resistor RP1 and the second adjustable resistor RP2 is 150 kilo-ohms.
In power circuit 1, external AC voltage source 220V enters transformer T step-down, then through rectifier bridge U rectification, then through the first electric capacity C1 filtering, and the direct voltage of stable output.
In operating circuit 2, DC voltage power supply is charged to the second electric capacity C2 by the first adjustable resistor RP1 and the first resistance R1, along with the rising of the voltage at the second electric capacity C2 two ends, namely between the base stage of triode Q and emitter, voltage raises, thus base current increases, therefore collector current also increases, after certain hour, when collector current is increased to the operating current of relay K, relay K adhesive, push-button switch S is connected, result, second electric capacity C2 two ends are shorted, same current potential between the base stage of triode Q and emitter, now base current is zero, collector current is very little, relay K discharges, thus decontrol push-button switch S, then DC power supply is charged to the second electric capacity C2 again, repeat beginning process.
In order to slow down the charging rate of DC power supply to the second electric capacity C2, making circuit have more operability, between the second electric capacity C2 and the base stage of triode Q, adding the series circuit of the second adjustable resistor RP2 and the second resistance R2.
Compared with prior art, this time control circuit stability is high, and antijamming capability is strong, has operability, and structure is simple, is applicable to multiple occasion, for providing great convenience property of industrial production and practicality.
With above-mentioned according to desirable embodiment of the present utility model for enlightenment, by above-mentioned description, relevant staff in the scope not departing from this utility model technological thought, can carry out various change and amendment completely.The technical scope of this utility model is not limited to the content on specification, must determine its technical scope according to right.
Claims (4)
1. a time control circuit, it is characterized in that, comprise power circuit and the operating circuit of series connection mutually, described power circuit comprises transformer, rectifier bridge and the first electric capacity, the external 220V AC power of primary side of described transformer, the secondary side of transformer is connected with the input of rectifier bridge, described first electric capacity is in parallel with the output of rectifier bridge, described operating circuit comprises relay, triode, first resistance, second resistance, 3rd resistance, first adjustable resistor, second adjustable resistor, second electric capacity and push-button switch, described relay, the series circuit of triode and the 3rd resistance composition and the first Capacitance parallel connection, described first adjustable resistor, the series circuit of the first resistance and the second electric capacity composition and the first Capacitance parallel connection, described shift knob is connected in parallel on the second electric capacity, the base stage of described triode is connected with the second resistance and second adjustable resistor of series connection mutually, described second adjustable resistor one end is connected with the second resistance, the other end of the second adjustable resistor is connected between the first resistance and the second electric capacity.
2. time control circuit as claimed in claim 1, it is characterized in that, the model of described triode is 9013.
3. time control circuit as claimed in claim 1, it is characterized in that, described first electric capacity is filter capacitor.
4. time control circuit as claimed in claim 1, it is characterized in that, the maximum resistance of described first adjustable resistor and the second adjustable resistor is 150 kilo-ohms.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520026683.8U CN204425300U (en) | 2015-01-15 | 2015-01-15 | Time control circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520026683.8U CN204425300U (en) | 2015-01-15 | 2015-01-15 | Time control circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204425300U true CN204425300U (en) | 2015-06-24 |
Family
ID=53475628
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520026683.8U Expired - Fee Related CN204425300U (en) | 2015-01-15 | 2015-01-15 | Time control circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204425300U (en) |
-
2015
- 2015-01-15 CN CN201520026683.8U patent/CN204425300U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150624 Termination date: 20180115 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |