CN217822575U - Low-cost little volume relay circuit - Google Patents
Low-cost little volume relay circuit Download PDFInfo
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- CN217822575U CN217822575U CN202222023619.7U CN202222023619U CN217822575U CN 217822575 U CN217822575 U CN 217822575U CN 202222023619 U CN202222023619 U CN 202222023619U CN 217822575 U CN217822575 U CN 217822575U
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Abstract
The utility model discloses a low-cost little volume relay circuit, the electronic switch field, this low-cost little volume relay circuit includes resistance R1, resistance R2, resistance R3, triode Q1, triode Q2, resistance R1's one end is connected and is disconnected foot A1, triode Q1's collecting electrode is connected to resistance R1's the other end, triode Q2's projecting pole, triode Q2's collecting electrode is connected to triode Q1's projecting pole, break-make foot A0, triode Q1's base connecting resistance R2's one end, enable signal is connected to resistance R2's the other end, resistance R3's one end, triode Q2's base is connected to resistance R3's the other end, compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses a circuit that five components and parts constitute replaces the relay, and simple structure, small effectively solves the problem that the small region used the difficult installation of relay, can effectively reduce the volume when using the relay in batches simultaneously.
Description
Technical Field
The utility model relates to an electronic switch field specifically is a low-cost little volume relay circuit.
Background
Various relays, such as signal low-current relays and high-current relays, are used in a plurality of application fields at present.
But because of the limitation of environment and occasion, the equipment needs to be ultra-small; the cost is higher because large-batch relays are needed; therefore, replacing the relay with an electronic circuit will effectively solve the above problems.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a low-cost little volume relay circuit to solve the problem that proposes in the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme:
the utility model provides a low-cost little volume relay circuit, including resistance R1, resistance R2, resistance R3, triode Q1, triode Q2, resistance R1's one end connection break-make foot A1, triode Q1's collecting electrode is connected to resistance R1's the other end, triode Q2's projecting pole, triode Q2's collecting electrode is connected to triode Q1's projecting pole, break-make foot A0, triode Q1's base connecting resistance R2's one end, enable signal is connected to resistance R2's the other end, resistance R3's one end, triode Q2's base is connected to resistance R3's the other end.
As a further aspect of the present invention: the on-off pins A1 and A0 are externally connected with a power supply.
As a further aspect of the present invention: when the enabling signal is greater than 0.7V, the triode Q1 and the triode Q2 are conducted; when the signal is less than 0.5V, the triode Q1 and the triode Q2 are cut off.
As a further aspect of the present invention: the resistance of the resistor R1 is 100 omega, the resistance of the resistor R2 is 10K omega, and the resistance of the resistor R3 is 10K omega.
As the utility model discloses further scheme again: the model of the triode Q1 and the triode Q2 is 8050.
Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses a circuit that five components and parts constitute replaces the relay, and simple structure, small effectively solves the problem that the small region used the difficult installation of relay, can effectively reduce the volume when using the relay in batches simultaneously.
Drawings
Fig. 1 is a circuit diagram of a low cost, small volume relay circuit.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, rather than all embodiments, and all other embodiments obtained by a person of ordinary skill in the art without creative work belong to the protection scope of the present invention based on the embodiments of the present invention.
Referring to fig. 1, a low-cost and small-volume relay circuit includes a resistor R1, a resistor R2, a resistor R3, a triode Q1, and a triode Q2, wherein one end of the resistor R1 is connected to a switch-off pin A1, the other end of the resistor R1 is connected to a collector of the triode Q1 and an emitter of the triode Q2, the emitter of the triode Q1 is connected to the collector of the triode Q2 and the switch-off pin A0, a base of the triode Q1 is connected to one end of the resistor R2, the other end of the resistor R2 is connected to an enable signal, one end of the resistor R3, and the other end of the resistor R3 is connected to a base of the triode Q2.
In this embodiment: referring to fig. 1, the on-off pins A1 and A0 are externally connected to a power supply.
The on-off pins A1 and A0 are connected with high level one by one and low level one by one.
In this embodiment: referring to fig. 1, when the enable signal is greater than 0.7V, the transistor Q1 and the transistor Q2 are turned on; when the signal is less than 0.5V, the triode Q1 and the triode Q2 are cut off.
Based on the above conditions, the enable signal can be triggered by the switch as a switch signal, the voltage is ensured to be higher than 0.7V when the switch is switched on, and the voltage is directly 0V when the switch is switched off, so that the working states of the triodes Q1 and Q2 are ensured.
In this embodiment: referring to fig. 1, the resistance of the resistor R1 is 100 Ω, the resistance of the resistor R2 is 10K Ω, and the resistance of the resistor R3 is 10K Ω.
The resistance value may be varied.
In this embodiment: referring to fig. 1, the type of the transistor Q1 and the transistor Q2 (NMOS transistor) is 8050,
the model of the transistor may vary.
The utility model discloses a theory of operation is: when the on-off pins A1 and A0 are respectively connected with a high level and a low level, the enable signal is triggered, and at the moment, the voltage forms a passage through the on-off pin A1, the triode Q1 and the on-off pin A0; when the on-off pins A0 and A1 are respectively connected with a high level and a low level, the enable signal is triggered, and at the moment, the voltage forms a channel through the on-off pin A0, the triode Q2, the resistor R1 and the on-off pin A1; thus, the enable signal acts as a trigger switch; the controlled device is arranged at the on-off pin A1 or the on-off pin A0.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (5)
1. The utility model provides a low-cost little volume relay circuit which characterized in that: this low-cost little volume relay circuit includes resistance R1, resistance R2, resistance R3, triode Q1, triode Q2, resistance R1's one end connection break pin A1, triode Q1's collecting electrode is connected to resistance R1's the other end, triode Q2's projecting pole, triode Q2's collecting electrode is connected to triode Q1's projecting pole, break-make pin A0, triode Q1's base connecting resistance R2's one end, enable signal is connected to resistance R2's the other end, resistance R3's one end, triode Q2's base is connected to resistance R3's the other end.
2. A low cost, low volume relay circuit according to claim 1, wherein the on/off pins A1, A0 are externally connected to a power supply.
3. A low cost, small volume relay circuit according to claim 1, wherein when the enable signal is greater than 0.7V, the transistor Q1 and the transistor Q2 are turned on; when the signal is less than 0.5V, the triode Q1 and the triode Q2 are cut off.
4. A low cost, low volume relay circuit according to claim 1, wherein the resistance of R1 is 100 Ω, the resistance of R2 is 10K Ω, and the resistance of R3 is 10K Ω.
5. A low cost and small volume relay circuit according to claim 1 or 4, wherein the transistors Q1 and Q2 are 8050.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222023619.7U CN217822575U (en) | 2022-08-02 | 2022-08-02 | Low-cost little volume relay circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222023619.7U CN217822575U (en) | 2022-08-02 | 2022-08-02 | Low-cost little volume relay circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217822575U true CN217822575U (en) | 2022-11-15 |
Family
ID=83972639
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222023619.7U Active CN217822575U (en) | 2022-08-02 | 2022-08-02 | Low-cost little volume relay circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217822575U (en) |
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2022
- 2022-08-02 CN CN202222023619.7U patent/CN217822575U/en active Active
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