CN203225728U - Time relay based on integrated circuit - Google Patents
Time relay based on integrated circuit Download PDFInfo
- Publication number
- CN203225728U CN203225728U CN 201320177435 CN201320177435U CN203225728U CN 203225728 U CN203225728 U CN 203225728U CN 201320177435 CN201320177435 CN 201320177435 CN 201320177435 U CN201320177435 U CN 201320177435U CN 203225728 U CN203225728 U CN 203225728U
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- integrated circuit
- diode
- electric capacity
- electronic switch
- transformer
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Abstract
The utility model discloses a time relay based on an integrated circuit, and the time relay includes a first integrated circuit, a second integrated circuit, a first electronic switch, a second electronic switch, a relay normally-open switch, a potentiometer, a first resistor, a first diode, a second diode, a third diode, a first capacitor, a second capacitor, a third capacitor, a fourth capacitor and a transformer. A first end and a second end of a first winding of the transformer are separately connected to an output terminal of a power supply, and a first end of a second winding of the transformer is connected to the positive electrode of the second diode. A monostable circuit is formed by use of the integrated circuit, a circuit delay process is achieved by utilizing a transient process of the monostable circuit, and therefore time accuracy and delay precision of the relay are improved.
Description
Technical field
The utility model relates to a kind of time relay, particularly a kind of time relay based on integrated circuit.
Background technology
Relay is a kind of electronic control device, and it has control system and by the control system, is generally used in the automatic control circuit, is actually a kind of " automatic switch " that remove to control big electric current with less current.So in circuit, play effects such as automatic adjusting, safeguard protection, change-over circuit.For Industry Control, accurately the time very important, and the time accuracy of existing relay is relatively poor, is not suitable for being applied to the time control of precision instrument in the industry
The utility model content
The purpose of this utility model with regard to be to provide a kind of time accuracy height in order to address the above problem, delay precision is high and the time relay based on integrated circuit simple in structure.
The utility model is achieved through the following technical solutions above-mentioned purpose:
A kind of time relay based on integrated circuit, comprise first integrated circuit, second integrated circuit, first electronic switch, second electronic switch, first normal open switch of relay, potentiometer, first resistance, first diode, second diode, the 3rd diode, first electric capacity, second electric capacity, the 3rd electric capacity, the 4th electric capacity and transformer, first end of described transformer first winding is connected with described power output end respectively with second end, first end of second winding of described transformer is connected with the positive pole of described second diode, the negative pole of described second diode respectively with the power input of described first integrated circuit, first end of the negative pole of the 3rd diode and described the 4th electric capacity is connected, second end of second winding of described transformer is connected with the positive pole of described the 3rd diode, second end of described the 4th electric capacity respectively with the intermediate ends of described transformer, first end of the output of first integrated circuit and described the 3rd electric capacity is connected, the power output end of described first integrated circuit respectively with second end of described the 3rd electric capacity, first end of second electronic switch, the negative pole of first diode is connected with the reset terminal of second integrated circuit, the power end of described second integrated circuit respectively with the reset terminal of described second integrated circuit, first end of potentiometer, first end of the sliding end of potentiometer and described first resistance is connected, second end of described potentiometer respectively with first end of first normal open switch of described relay, first end of first electric capacity is connected with the trigger end of described second integrated circuit, the output of described second integrated circuit respectively with the positive pole of described first diode, second end of second electronic switch connects, the control end of described second integrated circuit is connected with first end of described second electric capacity, second end of described second electric capacity respectively with first end of described the 3rd electric capacity, the earth terminal of described second integrated circuit, second end of second end of first electric capacity and first normal open switch of described relay is connected with first end of described first electronic switch, and second end of described first electronic switch is connected with second end of described first resistance.
Further, the described time relay also comprises second resistance and light-emitting diode, first end of described second resistance is connected with the power output end of described first integrated circuit, second end of the 3rd electric capacity and first end of described second relay respectively, second end of described second resistance is connected with the positive pole of described light-emitting diode, and the negative pole of described light-emitting diode is connected with second end of described second relay.
The beneficial effects of the utility model are:
Adopt integrated circuit to form monostable circuit, the time-delay process of circuit utilizes the transient process of monostable circuit to realize, has improved time accuracy and the delay precision of relay.
Description of drawings
Fig. 1 is that the utility model is based on the circuit diagram of the time relay of integrated circuit.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing:
As shown in Figure 1, the utility model comprises first integrated circuit (IC) 1, second integrated circuit (IC) 2, the first electronic switch S1, the second electronic switch S2 based on the time relay of integrated circuit
The normal open switch K1 of relay, potentiometer RP, first resistance R 1, the first diode VD1, the second diode VD2, the 3rd diode VD3, first capacitor C 1, second capacitor C 2, the 3rd capacitor C 3, the 4th capacitor C 4 and transformer T, first end of described transformer T first winding is connected with described power output end respectively with second end, first end of second winding of described transformer T is connected with the positive pole of the described second diode VD2, the negative pole of the described second diode VD2 respectively with the power input of described first integrated circuit (IC) 1, the negative pole of the 3rd diode VD3 is connected with first end of described the 4th capacitor C 4, second end of second winding of described transformer T is connected with the positive pole of described the 3rd diode VD3, second end of described the 4th capacitor C 4 respectively with the intermediate ends of described transformer T, the output of first integrated circuit (IC) 1 is connected with first end of described the 3rd capacitor C 3, the power output end of described first integrated circuit (IC) 1 respectively with second end of described the 3rd capacitor C 3, first end of the second electronic switch S2, the negative pole of the first diode VD1 is connected with the reset terminal of second integrated circuit (IC) 2, the power end of described second integrated circuit (IC) 2 respectively with the reset terminal of described second integrated circuit (IC) 2, first end of potentiometer RP, the sliding end of potentiometer RP is connected with first end of described first resistance R 1, second end of described potentiometer RP respectively with first end of the normal open switch K1 of described relay, first end of first capacitor C 1 is connected with the trigger end of described second integrated circuit (IC) 2, the output of described second integrated circuit (IC) 2 respectively with the positive pole of the described first diode VD1, second end of the second electronic switch S2 connects, the control end of described second integrated circuit (IC) 2 is connected with first end of described second capacitor C 2, second end of described second capacitor C 2 respectively with first end of described the 3rd capacitor C 3, the earth terminal of described second integrated circuit (IC) 2, second end of second end of first capacitor C 1 and the normal open switch K1 of described relay is connected with first end of the described first electronic switch S1, and second end of the described first electronic switch S1 is connected with second end of described first resistance R 1.Described first integrated circuit is the C7812 integrated regulator, and described second integrated circuit is 555 time-base integrated circuits.
As shown in Figure 1, the described time relay also comprises second resistance R 2 and the LED, first end of described second resistance R 2 is connected with the power output end of described first integrated circuit (IC) 1, second end of the 3rd capacitor C 3 and first end of the described second electronic switch S2 respectively, second end of described second resistance R 2 is connected with the positive pole of described LED, and the negative pole of described LED is connected with second end of the described second electronic switch S2.
Claims (2)
1. time relay based on integrated circuit, it is characterized in that: comprise first integrated circuit, second integrated circuit, first electronic switch, second electronic switch, first normal open switch of relay, potentiometer, first resistance, first diode, second diode, the 3rd diode, first electric capacity, second electric capacity, the 3rd electric capacity, the 4th electric capacity and transformer, first end of described transformer first winding is connected with power output end respectively with second end, first end of second winding of described transformer is connected with the positive pole of described second diode, the negative pole of described second diode respectively with the power input of described first integrated circuit, first end of the negative pole of the 3rd diode and described the 4th electric capacity is connected, second end of second winding of described transformer is connected with the positive pole of described the 3rd diode, second end of described the 4th electric capacity respectively with the intermediate ends of described transformer, first end of the output of first integrated circuit and described the 3rd electric capacity is connected, the power output end of described first integrated circuit respectively with second end of described the 3rd electric capacity, first end of second electronic switch, the negative pole of first diode is connected with the reset terminal of second integrated circuit, the power end of described second integrated circuit respectively with the reset terminal of described second integrated circuit, first end of potentiometer, first end of the sliding end of potentiometer and described first resistance is connected, second end of described potentiometer respectively with first end of first normal open switch of described relay, first end of first electric capacity is connected with the trigger end of described second integrated circuit, the output of described second integrated circuit respectively with the positive pole of described first diode, second end of second electronic switch connects, the control end of described second integrated circuit is connected with first end of described second electric capacity, second end of described second electric capacity respectively with first end of described the 3rd electric capacity, the earth terminal of described second integrated circuit, second end of second end of first electric capacity and first normal open switch of described relay is connected with first end of described first electronic switch, and second end of described first electronic switch is connected with second end of described first resistance.
2. the time relay based on integrated circuit according to claim 1, it is characterized in that: the described time relay also comprises second resistance and light-emitting diode, first end of described second resistance is connected with the power output end of described first integrated circuit, second end of the 3rd electric capacity and first end of described second electronic switch respectively, second end of described second resistance is connected with the positive pole of described light-emitting diode, and the negative pole of described light-emitting diode is connected with second end of described second electronic switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320177435 CN203225728U (en) | 2013-04-10 | 2013-04-10 | Time relay based on integrated circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320177435 CN203225728U (en) | 2013-04-10 | 2013-04-10 | Time relay based on integrated circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203225728U true CN203225728U (en) | 2013-10-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320177435 Expired - Fee Related CN203225728U (en) | 2013-04-10 | 2013-04-10 | Time relay based on integrated circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203225728U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111404125A (en) * | 2020-05-09 | 2020-07-10 | 山东建筑大学 | Protection circuit for realizing reverse connection of polar electrolytic capacitor by using 555 timer |
-
2013
- 2013-04-10 CN CN 201320177435 patent/CN203225728U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111404125A (en) * | 2020-05-09 | 2020-07-10 | 山东建筑大学 | Protection circuit for realizing reverse connection of polar electrolytic capacitor by using 555 timer |
| CN111404125B (en) * | 2020-05-09 | 2022-05-24 | 山东建筑大学 | Protection circuit for realizing reverse connection of polar electrolytic capacitor by using 555 timer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131002 Termination date: 20140410 |