CN219999084U - UPS topology circuit - Google Patents
UPS topology circuit Download PDFInfo
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- CN219999084U CN219999084U CN202223509633.4U CN202223509633U CN219999084U CN 219999084 U CN219999084 U CN 219999084U CN 202223509633 U CN202223509633 U CN 202223509633U CN 219999084 U CN219999084 U CN 219999084U
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Abstract
The utility model provides a UPS topological circuit, which relates to the field of power supply and comprises a battery, a live wire, a zero line, a switching tube Q1, a switching tube Q2, a full bridge driving circuit, a relay 1, a relay 2, a relay 3, a rectifier bridge, a transformer 1, a transformer 2 and a switching tube Q7.
Description
Technical Field
The utility model relates to the field of power supply, in particular to a UPS topological circuit.
Background
Most of the loads of the current low-power UPS are digital power loads of a switch power supply type power supply, so that the intelligent management is realized for better interaction with the UPS, and the standard practice is to communicate between the UPS power supply and a switch customized power supply through a standard protocol port, such as RS232, USB, RS485 or SNMP card and the like, to transmit information. In general, the small-power UPS status information required by the customized power supply is very limited, which is basically several basic information such as a mains supply mode, a battery mode, low battery power, insufficient discharge time and the like, but the RS232 or USB basic port and the corresponding data line are required to be added, which presents challenges to some specific UPS and switch power supply cost, and a new solution is provided for the small-power square wave UPS in combination with the customized power supply based on the present disclosure.
Disclosure of Invention
An object of an embodiment of the utility model is to provide a UPS topology circuit.
The embodiment of the utility model provides a UPS topological circuit, which comprises a battery, a live wire L, a zero line N, a switching tube Q1, a switching tube Q2, a full-bridge driving circuit, a relay J1, a relay J2, a relay J3, a rectifier bridge, a transformer T1, a transformer T2 and a switching tube Q7, wherein the positive electrode of the battery is connected with a second interface of the input end of the transformer T1, the S electrode of the switching tube Q1 and the S electrode of the switching tube Q2 are connected with the negative electrode of the battery, the D electrode of the switching tube Q1 is connected with a first interface of the input end of the transformer T1, the D electrode of the switching tube Q2 is connected with a third interface of the input end of the transformer T1, the output end of the transformer T1 is connected with the input end of the full-bridge driving circuit, the output end of the full-bridge driving circuit is respectively connected with a second interface of the input end of the relay J1 and a second interface of the input end of the relay J3, the first interface of the input end of the relay J1 is connected with the live wire L, the output end of the relay J1 is connected with the output end of the relay J2, the first interface of the input end of the relay J2 is connected with the live wire L, the second interface of the input end of the relay J3 is connected with the zero line N, the output end of the relay J3 is connected with the zero line N, the first interface of the rectifier bridge is connected with the third interface of the transformer T2, the second interface of the rectifier bridge is connected with the zero line N, the third interface of the rectifier bridge is connected with the S pole of the switch tube Q7, the fourth interface of the rectifier bridge is connected with the live wire L, the D pole of the switch tube Q7 is connected with the fourth interface of the transformer T2, the first interface of the transformer T2 is connected with the positive pole of the battery, the second interface of the transformer T2 is connected with the negative electrode of the battery.
Preferably, the full-bridge driving circuit comprises a switching tube Q3, a switching tube Q4, a switching tube Q5 and a switching tube Q6, wherein the D pole of the switching tube Q3 and the D pole of the switching tube Q4 are connected with the transformer T1, the S pole of the switching tube Q3 and the D pole of the switching tube Q5 are connected, the S pole of the switching tube Q4 and the D pole of the switching tube Q6 are connected, the S pole of the switching tube Q5 and the S pole of the switching tube Q6 are connected with the transformer T1, the S pole of the switching tube Q3 and the D pole of the switching tube Q5 are connected with the second interface of the input end of the relay J3, and the S pole of the switching tube Q4 and the D pole of the switching tube Q6 are connected with the second interface of the input end of the relay J1.
Preferably, an anti-reverse diode is arranged between the transformer and the full-bridge driving circuit, and the anti-reverse diode comprises a diode D1, a diode D2, a diode D3 and a diode D4.
Preferably, a fuse S is provided between the transformer T1 and the battery.
Preferably, a diode D5 is provided between the transformer T2 and the battery.
The utility model has the beneficial effects that:
the utility model provides a UPS topology circuit, which comprises a battery, a live wire L, a zero line N, a switching tube Q1, a switching tube Q2, a full-bridge driving circuit, a relay J1 and a relayJ2, a relay J3, a rectifier bridge, a transformer T1, a transformer T2 and a switch tube Q7, the utility model adopts commercial power to supply power in a normal mode, and after the battery mode is switched into ， The total amplitude and frequency of the square wave alternating current passing through the shape of the square wave UPS inverter bridge are kept unchanged (such as 220Vac/50 hz), but by changing the switching times of the square wave UPS inverter bridge, 2 square wave waveforms are generated in the positive half cycle, 2 square wave waveforms are also generated in the negative half cycle, the detection unit of the output load customized power supply is used for identifying the shape of the square wave alternating current T/2, the shape is recorded as 1, the negative half cycle T/2 is recorded as 1, the digital signal 11 is formed as the identification of the battery mode of the UPS, in the battery mode, if the battery power is low, the total amplitude and frequency of the square wave alternating current passing through the shape of the battery is kept unchanged (such as 220Vac/50 hz), but by changing the switching times of the square wave UPS inverter bridge, 4 square wave waveforms are generated in the positive half cycle, the detection unit of the output load customized power supply is used for identifying the shape of the square wave alternating current T/2 in the negative half cycle, the negative half cycle T/2 is recorded as 3, and the digital signal 3 is formed as the identification of the battery mode of the battery power of the UPS.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic circuit diagram of the present utility model;
FIG. 2 is a waveform diagram of a mains mode of the present utility model;
FIG. 3 is a waveform diagram of a square wave AC power at normal output in accordance with the present utility model;
FIG. 4 is a waveform diagram of a battery mode of the present utility model;
fig. 5 is a waveform diagram of a low battery of the battery mode of the present utility model.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.
In the description of the present utility model, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are directions or positional relationships based on those shown in the drawings, or those that are conventionally put in use of the product of the application, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific direction, be configured and operated in a specific direction, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," "third," and the like are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.
Furthermore, the terms "horizontal," "vertical," "overhang," and the like do not denote a requirement that the component be absolutely horizontal or overhang, but rather may be slightly inclined. As "horizontal" merely means that its direction is more horizontal than "vertical", and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
As shown in fig. 1, the UPS topology circuit includes a battery, a live wire L, a zero line N, a switching tube Q1, a switching tube Q2, a full-bridge driving circuit, a relay J1, a relay J2, a relay J3, a rectifier bridge, a transformer T1, a transformer T2, and a switching tube Q7, wherein the positive electrode of the battery is connected to the second interface of the input terminal of the transformer T1, the S-electrode of the switching tube Q1 and the S-electrode of the switching tube Q2 are connected to the negative electrode of the battery, the D-electrode of the switching tube Q1 is connected to the third interface of the input terminal of the transformer T1, the D-electrode of the switching tube Q2 is connected to the third interface of the input terminal of the transformer T1, the output terminal of the transformer T1 is connected to the second interface of the input terminal of the relay J1, the second interface of the input terminal of the relay J3 is connected to the second interface of the input terminal of the relay J1, the first interface of the switching tube Q1 is connected to the first interface of the fourth interface of the switching tube Q2, the first interface of the fourth interface of the switching tube Q2 is connected to the fourth interface of the input terminal of the transformer T1, the output terminal of the fourth interface of the transformer T1 is connected to the fourth interface of the output terminal of the fourth interface of the switching tube Q2 is connected to the input terminal of the fourth interface of the relay T1, the output terminal of the fourth interface of the output of the full-bridge is connected to the input terminal of the relay J1 is respectively. The second interface of the transformer T2 is connected with the negative electrode of the battery.
In the normal mode, the utility model adopts commercial power to supply power, and after the battery mode is switched into ， The total amplitude and frequency of the square wave alternating current passing through the shape of the square wave UPS inverter bridge are kept unchanged (such as 220Vac/50 hz), but by changing the switching times of the square wave UPS inverter bridge, 2 square wave waveforms are generated in the positive half cycle, 2 square wave waveforms are also generated in the negative half cycle, the detection unit of the output load customized power supply is used for identifying the shape of the square wave alternating current T/2, the shape is recorded as 1, the negative half cycle T/2 is recorded as 1, the digital signal 11 is formed as the identification of the battery mode of the UPS, in the battery mode, if the battery power is low, the total amplitude and frequency of the square wave alternating current passing through the shape of the battery is kept unchanged (such as 220Vac/50 hz), but by changing the switching times of the square wave UPS inverter bridge, 4 square wave waveforms are generated in the positive half cycle, the detection unit of the output load customized power supply is used for identifying the shape of the square wave alternating current T/2 in the negative half cycle, the negative half cycle T/2 is recorded as 3, and the digital signal 3 is formed as the identification of the battery mode of the battery power of the UPS.
In this embodiment, the full-bridge driving circuit includes a switch tube Q3, a switch tube Q4, a switch tube Q5 and a switch tube Q6, a D pole of the switch tube Q3 and a D pole of the switch tube Q4 are connected with the transformer T1, an S pole of the switch tube Q3 and a D pole of the switch tube Q5 are connected, an S pole of the switch tube Q4 and a D pole of the switch tube Q6 are connected, an S pole of the switch tube Q5 and an S pole of the switch tube Q6 are connected with the transformer T1, an S pole of the switch tube Q3 and a D pole of the switch tube Q5 are connected with a second interface of the input end of the relay J3, and an S pole of the switch tube Q4 and a D pole of the switch tube Q6 are connected with a second interface of the input end of the relay J1.
In this embodiment, in order to prevent reverse connection, a reverse connection preventing diode is disposed between the transformer and the full-bridge driving circuit, the reverse connection preventing diode includes a diode D1, a diode D2, a diode D3, and a diode D4, and a diode D5 is disposed between the transformer T2 and the battery.
In this embodiment, a fuse S is disposed between the transformer T1 and the battery.
In the normal mains mode, as shown in fig. 2, waveforms are shown in fig. 3-4, in the battery mode, square-wave alternating current is normally output, as shown in fig. 3, in order to have a larger difference from the mains mode waveform in the custom power supply detection unit, after the battery mode is switched into, a group of square-wave alternating current with the shape of which is shown in fig. 3 is generated again, the total amplitude and frequency of the square-wave alternating current with the shape of which is kept unchanged (220 Vac/50hz for example) is shown in fig. 3, but 2 square-wave waveforms are generated in the positive half cycle by changing the switching times of the square-wave UPS inverter bridge, 2 square-wave waveforms are also generated in the negative half cycle, the detection unit of the output load custom power supply of which is used for identifying the shape of the square-wave alternating current in the time T/2 is recorded as 1, and the negative half cycle T/2 is recorded as 1, so that the digital signal 11 is used as the status of the UPS battery mode.
As shown in fig. 5, in the battery mode, if the battery is low, the total amplitude and frequency of the square wave ac passing through the shape thereof are maintained unchanged (e.g., 220Vac/50 hz), but by changing the switching times of the square wave UPS inverter bridge, 4 square wave waveforms are generated in the positive half-cycle, 4 square wave waveforms are also generated in the negative half-cycle, the detection unit of the output load customizing power supply thus recognizes the shape of the square wave ac for T/2 time, and is recorded as 3, and the negative half-cycle T/2 is also recorded as 3, and the digital signal 3 is formed as the UPS battery mode battery low state recognition.
Considering that the square wave alternating current power transmission line diagram with actual power, a large number of capacitive components, inductive components and parasitic parameter influences exist in the whole line, the square wave pulse waveform frequency is not too high, in addition, the frequency is too high, and key noise cannot be processed.
For the initial proposal herein of 3 square waves in the alternating current half-shaft T/2, and in combination with the negative half-shaft, there can be at least 9 combinations:
in view of the fact that the waveform is disturbed by other reasons such as switching noise, several groups may be continuously or indirectly repeated in actual use, and the filtering process may be performed, and the actual situation may be confirmed.
The above is only a preferred embodiment of the present utility model, and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.
Claims (5)
1. A UPS topology circuit, characterized by: the full-bridge rectifier circuit comprises a battery, a live wire L, a zero line N, a switching tube Q1, a switching tube Q2, a full-bridge driving circuit, a relay J1, a relay J2, a rectifier bridge, a transformer T1, a transformer T2 and a switching tube Q7, wherein the positive electrode of the battery is connected with a second interface of the input end of the transformer T1, the S electrode of the switching tube Q1 is connected with the negative electrode of the battery, the D electrode of the switching tube Q1 is connected with a first interface of the input end of the transformer T1, the D electrode of the switching tube Q2 is connected with a third interface of the input end of the transformer T1, the output end of the transformer T1 is connected with the input end of the full-bridge driving circuit, the output end of the full-bridge driving circuit is respectively connected with a second interface of the input end of the relay J1, the first interface of the input end of the relay J1 is connected with the negative electrode of the battery, the D electrode of the switching tube Q1 is connected with a fourth interface of the transformer T2, the output end of the switching tube Q2 is connected with the fourth interface of the input end of the transformer T2, the fourth interface of the switching tube is connected with the output end of the transformer T2, the output end of the fourth interface of the switching tube is connected with the fourth interface of the input end of the transformer T2, the output end of the full-bridge is connected with the fourth interface of the input end of the transformer T2.
2. A UPS topology according to claim 1, wherein: the full-bridge driving circuit comprises a switching tube Q3, a switching tube Q4, a switching tube Q5 and a switching tube Q6, wherein the D pole of the switching tube Q3 and the D pole of the switching tube Q4 are connected with a transformer T1, the S pole of the switching tube Q3 and the D pole of the switching tube Q5 are connected, the S pole of the switching tube Q4 and the D pole of the switching tube Q6 are connected, the S pole of the switching tube Q5 and the S pole of the switching tube Q6 are connected with the transformer T1, the S pole of the switching tube Q3 and the D pole of the switching tube Q5 are connected with a second interface of the input end of a relay J3, and the S pole of the switching tube Q4 and the D pole of the switching tube Q6 are connected with a second interface of the input end of the relay J1.
3. A UPS topology according to claim 1, wherein: an anti-reverse diode is arranged between the transformer and the full-bridge driving circuit, and comprises a diode D1, a diode D2, a diode D3 and a diode D4.
4. A UPS topology according to claim 1, wherein: a fuse S is provided between the transformer T1 and the battery.
5. A UPS topology according to claim 1, wherein: a diode D5 is arranged between the transformer T2 and the battery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223509633.4U CN219999084U (en) | 2022-12-28 | 2022-12-28 | UPS topology circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223509633.4U CN219999084U (en) | 2022-12-28 | 2022-12-28 | UPS topology circuit |
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| Publication Number | Publication Date |
|---|---|
| CN219999084U true CN219999084U (en) | 2023-11-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223509633.4U Active CN219999084U (en) | 2022-12-28 | 2022-12-28 | UPS topology circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219999084U (en) |
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- 2022-12-28 CN CN202223509633.4U patent/CN219999084U/en active Active
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