CN217036827U - Automatic backup uninterrupted power supply circuit - Google Patents
Automatic backup uninterrupted power supply circuit Download PDFInfo
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- CN217036827U CN217036827U CN202123305519.5U CN202123305519U CN217036827U CN 217036827 U CN217036827 U CN 217036827U CN 202123305519 U CN202123305519 U CN 202123305519U CN 217036827 U CN217036827 U CN 217036827U
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Abstract
The utility model discloses an automatic backup uninterrupted power supply circuit, and relates to the field of circuits; the circuit comprises a first power supply end, a second power supply end, a first backup circuit, a second backup circuit, a first output end and a second output end; the first power supply end and the second power supply end are respectively connected to a first backup circuit and a second backup circuit, the first backup circuit is connected to the first output end, and the second backup circuit is connected to the second output end; the utility model has the beneficial effects that: the circuit can realize mutual backup between two power supply modules, and when one power supply module is abnormal, the backup module can be automatically switched to realize uninterrupted power supply.
Description
Technical Field
The utility model relates to the field of circuits, in particular to an automatic backup uninterruptible power supply circuit.
Background
With the popularization of the 5G technology, the security monitoring system is widely applied to daily production and life. The security monitoring system is required to run constantly and is not interrupted. According to the characteristics of the security monitoring system, the power supply system required to supply power to the security monitoring system must be an uninterruptible power supply. At present, a plurality of uninterruptible power supplies are additionally provided with standby batteries, so that the uninterruptible power supplies are high in cost and heavy. Therefore, the uninterrupted technology of the automatic backup of the intelligent power supply of the Internet of things can meet the power consumption requirement of the security monitoring system equipment.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects of the prior art, the utility model provides an automatic backup uninterrupted power supply circuit, which can enable two power supply modules to backup each other, and when one power supply module is abnormal, the backup module can be automatically switched to realize uninterrupted power supply.
The technical scheme adopted by the utility model for solving the technical problem is as follows: an automatic backup uninterrupted power supply circuit is characterized by comprising a first power supply end, a second power supply end, a first backup circuit, a second backup circuit, a first output end and a second output end;
in the above structure, the first power supply terminal and the second power supply terminal are respectively connected to a first backup circuit and a second backup circuit, the first backup circuit is connected to the first output terminal, and the second backup circuit is connected to the second output terminal.
In the above structure, the first backup circuit and the second backup circuit have the same structure, where the first backup circuit includes a relay K1 and a transistor Q1, the first power supply end is connected to the normally closed contact of the relay K1, the second power supply end is connected to the normally open contact of the relay K1, and the first output end is connected to the output contact of the relay K1;
the first power supply end is connected to the base electrode of the triode Q1, the second power supply end is connected to the emitting electrode of the triode Q1, the coil group of the relay K1 is connected between the collector electrode of the triode Q1 and the grounding end in series, the second power supply end realizes power-on and power-off control over the coil group of the relay K1 through the triode Q1, and then on-off control over the first power supply end, the second power supply end and the first output end is controlled.
In the structure, the second backup circuit comprises a relay K2 and a triode Q2, a first power supply end is connected to a normally open contact of a relay K2, a second power supply end is connected to a normally closed contact of a relay K2, and a second output end is connected to an output contact of a relay K2;
in the above structure, the second power supply terminal is connected to the base of the transistor Q2, the first power supply terminal is connected to the emitter of the transistor Q1, the coil set of the relay K2 is connected in series between the collector of the transistor Q2 and the ground terminal, and the first power supply terminal realizes power on/off control of the coil set of the relay K2 through the transistor Q2, so as to control on/off control of the first power supply terminal, the second power supply terminal and the second output terminal.
In the above structure, the first backup circuit further includes a resistor R1, a resistor R2, a diode D1, and a diode D3; the resistor R1 and the resistor R2 are connected in series between the first output end and the ground end, and the base electrode of the triode Q1 is connected between the resistor R1 and the resistor R2; the diode D1 is disposed between the second power supply terminal and the emitter of the transistor Q1, and the diode D3 is disposed between the transistor Q1 and the ground terminal.
In the above structure, the second backup circuit further includes a resistor R3, a resistor R4, a diode D2, and a diode D4; the resistor R3 and the resistor R4 are connected in series between the second output end and the ground end, and the base electrode of the triode Q1 is connected between the resistor R3 and the resistor R4; the diode D2 is disposed between the first power supply terminal and the emitter of the transistor Q2, and the diode D4 is disposed between the transistor Q2 and ground.
In the structure, the type of the relay K1 and the type of the relay K2 are SMIH-12 VDC-SL-C.
In the structure, the model of the triode Q1 and the model of the triode Q2 are MMBT 4403.
In the above structure, the model numbers of the diode D1 and the diode D2 are 1N 4007.
In the above structure, the type of the diode D3 and the diode D4 is 1N 4148.
The utility model has the beneficial effects that: the circuit can realize mutual backup between two power supply modules, and when one power supply module is abnormal, the backup module can be automatically switched to realize uninterrupted power supply.
Drawings
Fig. 1 is a schematic circuit diagram of an automatic backup ups circuit according to the present invention.
Detailed Description
The utility model is further illustrated with reference to the following figures and examples.
The conception, the specific structure and the technical effects produced by the present invention will be clearly and completely described in conjunction with the embodiments and the attached drawings, so as to fully understand the objects, the features and the effects of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and those skilled in the art can obtain other embodiments without inventive effort based on the embodiments of the present invention, and all embodiments are within the protection scope of the present invention. In addition, all the connection relations related in the patent do not mean that the components are directly connected, but mean that a better connection structure can be formed by adding or reducing connection auxiliary components according to specific implementation conditions. All technical characteristics in the utility model can be interactively combined on the premise of not conflicting with each other.
Referring to fig. 1, the present invention discloses an automatic backup uninterruptible power supply circuit, which specifically includes a first power supply terminal 10, a second power supply terminal 20, a first backup circuit 30, a second backup circuit 40, a first output terminal 50, and a second output terminal 60.
The first power supply terminal 10 and the second power supply terminal 20 are connected to a first backup circuit 30 and a second backup circuit 40, respectively, the first backup circuit 30 is connected to a first output terminal 50, and the second backup circuit 40 is connected to a second output terminal 60.
The first backup circuit 30 and the second backup circuit 40 are identical in structure, the first backup circuit 30 comprises a relay K1, a triode Q1, a resistor R1, a resistor R2, a diode D1 and a diode D3, the model of the relay K1 is SMIH-12VDC-SL-C, the model of the triode Q1 is MMBT4403, the model of the diode D1 is 1N4007, and the model of the diode D3 is 1N 4148;
the first power supply end 10 is connected to a normally closed contact of a relay K1, the second power supply end 20 is connected to a normally open contact of a relay K1, and the first output end 50 is connected to an output contact of a relay K1;
the first power supply end 10 is connected to a base electrode of a triode Q1, the second power supply end 20 is connected to an emitter electrode of a triode Q1, a coil group of a relay K1 is connected in series between a collector electrode of a triode Q1 and a ground end, and the second power supply end 20 realizes power-on and power-off control on the coil group of a relay K1 through a triode Q1, so that on-off control of the first power supply end 10, the second power supply end 20 and the first output end 50 is further controlled;
the resistor R1 and the resistor R2 are connected in series between the first output end 50 and the ground end, and the base of the triode Q1 is connected between the resistor R1 and the resistor R2; the diode D1 is disposed between the second power supply terminal 20 and the emitter of the transistor Q1, and the diode D3 is disposed between the transistor Q1 and ground.
The second backup circuit 40 comprises a relay K2, a triode Q2, a resistor R3, a resistor R4, a diode D2 and a diode D4, wherein the model of the relay K2 is SMIH-12VDC-SL-C, the model of the triode Q2 is MMBT4403, the model of the diode D2 is 1N4007, and the model of the diode D4 is 1N 4148;
the first power supply end 10 is connected to a normally open contact of the relay K2, the second power supply end 20 is connected to a normally closed contact of the relay K2, and the second output end 20 is connected to an output contact of the relay K2;
the second power supply end 20 is connected to the base of the triode Q2, the first power supply end 10 is connected to the emitter of the triode Q1, the coil set of the relay K2 is connected in series between the collector of the triode Q2 and the ground terminal, and the first power supply end 10 realizes power on and power off control of the coil set of the relay K2 through the triode Q2, so that on and off control of the first power supply end 10, the second power supply end 20 and the second output end 60 is controlled.
The resistor R3 and the resistor R4 are connected in series between the second output end 50 and the ground end, and the base of the triode Q1 is connected between the resistor R3 and the resistor R4;
the diode D2 is disposed between the first power supply terminal 10 and the emitter of the transistor Q2, and the diode D4 is disposed between the transistor Q2 and the ground terminal.
The commercial power enters from the port L, N, and after being converted by the first power supply terminal 10 and the second power supply terminal 20, the commercial power can output the dc voltage required by each terminal. After passing through the automatic backup circuit, the accurate direct current voltage is transmitted to each terminal device through a single-path output control circuit network.
In a normal working state, the output end of the first power supply end 10 outputs voltage, then the voltage flows into the first automatic backup circuit 30, flows out through the relay K1 and is output through the first output end 50; the output of the second power supply terminal 20 will also output a voltage, which then flows into the second backup circuit, out through relay K2, and out through the second output terminal 60. If the first power supply terminal 10 is abnormal and cannot normally output, the triode Q1 will be automatically turned on, the relay K1 will be attracted under the action of the coil set, and then the output terminal of the second power supply terminal 20 is automatically connected, at this time, the second power supply terminal 20 supplies power to the first output terminal 50 through the relay K1; in a similar manner, when the second power supply terminal 20 is abnormal and cannot normally output, the triode Q2 will be automatically opened, the K2 is attracted, and then the triode Q2 is automatically connected to the output terminal of the first power supply terminal 10, at this time, the first power supply terminal 10 supplies power to the second output terminal 60 through the relay K2.
By using the automatic backup circuit, the power supply ends can be mutually backed up, when a certain power supply end is abnormal, the backup module automatically backs up to realize uninterrupted switching, and uninterrupted power supply can be realized.
While the preferred embodiments of the present invention have been illustrated and described, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the utility model as defined by the appended claims.
Claims (8)
1. An automatic backup uninterrupted power supply circuit is characterized by comprising a first power supply end, a second power supply end, a first backup circuit, a second backup circuit, a first output end and a second output end;
the first power supply end and the second power supply end are respectively connected to a first backup circuit and a second backup circuit, the first backup circuit is connected to the first output end, and the second backup circuit is connected to the second output end;
the first backup circuit and the second backup circuit are identical in structure, the first backup circuit comprises a relay K1 and a triode Q1, a first power supply end is connected to a normally closed contact of the relay K1, a second power supply end is connected to a normally open contact of the relay K1, and a first output end is connected to an output contact of the relay K1;
the first power supply end is connected to the base electrode of the triode Q1, the second power supply end is connected to the emitting electrode of the triode Q1, the coil group of the relay K1 is connected between the collector electrode of the triode Q1 and the grounding end in series, the second power supply end realizes power-on and power-off control over the coil group of the relay K1 through the triode Q1, and then on-off control over the first power supply end, the second power supply end and the first output end is controlled.
2. The automatic backup uninterrupted power supply circuit according to claim 1, wherein the second backup circuit comprises a relay K2 and a transistor Q2, a first power supply end is connected to a normally open contact of the relay K2, a second power supply end is connected to a normally closed contact of the relay K2, and a second output end is connected to an output contact of the relay K2;
the second power supply end is connected to the base electrode of the triode Q2, the first power supply end is connected with the emitting electrode of the triode Q1, the coil group of the relay K2 is connected between the collector electrode of the triode Q2 and the grounding end in series, the first power supply end realizes power-on and power-off control over the coil group of the relay K2 through the triode Q2, and then on-off control over the first power supply end, the second power supply end and the second output end is controlled.
3. The automatic backup uninterruptible power supply circuit of claim 2, wherein the first backup circuit further comprises a resistor R1, a resistor R2, a diode D1, and a diode D3;
the resistor R1 and the resistor R2 are connected in series between the first output end and the ground end, and the base electrode of the triode Q1 is connected between the resistor R1 and the resistor R2;
the diode D1 is disposed between the second power supply terminal and the emitter of the transistor Q1, and the diode D3 is disposed between the transistor Q1 and ground.
4. The automatic backup uninterruptible power supply circuit of claim 3, wherein the second backup circuit further comprises a resistor R3, a resistor R4, a diode D2, and a diode D4;
the resistor R3 and the resistor R4 are connected in series between the second output end and the ground end, and the base electrode of the triode Q1 is connected between the resistor R3 and the resistor R4;
the diode D2 is disposed between the first power supply terminal and the emitter of the transistor Q2, and the diode D4 is disposed between the transistor Q2 and ground.
5. The automatic backup uninterruptible power supply circuit of claim 2, wherein the relay K1 and the relay K2 are model SMIH-12 VDC-SL-C.
6. The automatic backup uninterruptible power supply circuit of claim 2, wherein the transistor Q1 and the transistor Q2 are of the MMBT4403 type.
7. An automatic backup uninterruptible power supply circuit according to claim 4, characterized in that said diodes D1 and D2 are of type 1N 4007.
8. The automatic backup uninterruptible power supply circuit of claim 4, wherein the type of the diode D3 and the type of the diode D4 are 1N 4148.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123305519.5U CN217036827U (en) | 2021-12-24 | 2021-12-24 | Automatic backup uninterrupted power supply circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123305519.5U CN217036827U (en) | 2021-12-24 | 2021-12-24 | Automatic backup uninterrupted power supply circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217036827U true CN217036827U (en) | 2022-07-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123305519.5U Active CN217036827U (en) | 2021-12-24 | 2021-12-24 | Automatic backup uninterrupted power supply circuit |
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| Country | Link |
|---|---|
| CN (1) | CN217036827U (en) |
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2021
- 2021-12-24 CN CN202123305519.5U patent/CN217036827U/en active Active
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