CN211063405U - Miniature uninterrupted power source converter - Google Patents
Miniature uninterrupted power source converter Download PDFInfo
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- CN211063405U CN211063405U CN201922024084.3U CN201922024084U CN211063405U CN 211063405 U CN211063405 U CN 211063405U CN 201922024084 U CN201922024084 U CN 201922024084U CN 211063405 U CN211063405 U CN 211063405U
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Abstract
The utility model discloses a miniature uninterrupted power source converter, including rectification filter module, battery charging module and power switching module, still include AC DC power module and DC boost module, the commercial power is connected to AC DC power module's input, and the input of battery charging module is connected to AC DC power module's output, and the battery is connected to the output of battery charging module, and the input of DC boost module is connected to the battery, and the commercial power is connected to rectification filter module's input, and the input of power switching module is connected to rectification filter module's output and DC boost module's output, and the output of power switching module is connected with electrical apparatus. The beneficial effects of the utility model include: simple structure, it is multiple functional, have good protection to the battery, be favorable to increase of service life, the security is high.
Description
Technical Field
The utility model relates to a power technical field especially relates to a miniature uninterrupted power source converter.
Background
The uninterruptible power supply is energy storage type power supply equipment capable of continuously, stably and uninterruptedly providing electric energy, and is wide in application field. The uninterruptible power supply mainly comprises a host and an energy storage component, can provide power electronic equipment with continuous, stable and uninterrupted power supply, is energy storage type power supply equipment which comprehensively utilizes the technologies of power electronics, computers, networks, embedded software, storage battery management, high-reliability power distribution and the like, and an integral solution, and needs to be supplied with power by the uninterruptible power supply on power monitoring equipment, so that a power instrument continuously monitors and uploads data of the internet of things. The conventional uninterruptible power supply is large in size, difficult to install and relatively high in price. Some small upss are now available.
The utility model discloses a miniature uninterrupted power source of intelligence, for solving current product volume stupid, heavy, and can not automatic problem of stocking, this utility model's uninterrupted power source in addition to including traditional rectifier circuit, charging circuit, inverter circuit and switching circuit, still include an intelligent control circuit that is used for automatic control outside computer equipment, wherein including exchange detection circuitry and can to outside computer equipment output stockpiles, shutdown class control signal's control signal generation circuit.
However, the prior art is still incomplete in function, complex in structure and easy to cause problems.
SUMMERY OF THE UTILITY MODEL
Still imperfect to prior art function, and the complicated problem of structure, the utility model provides a miniature uninterrupted power source converter, simple structure, it is small, convenient to use.
The technical scheme of the utility model is as follows.
The utility model provides a miniature uninterrupted power source converter, includes rectification filter module, battery, storage battery charging module and power switching module, still includes AC/DC power module and DC/DC boost module, the commercial power is connected to AC/DC power module's input, and the input of storage battery charging module is connected to AC/DC power module's output, and the battery is connected to storage battery charging module's output, and the input of DC/DC boost module is connected to the battery, and the commercial power is connected to rectification filter module's input, and the input of power switching module is connected to rectification filter module's output and DC/DC boost module's output, and power switching module's output is connected with electrical apparatus.
When a main power is input, high-voltage direct current generated after the main power is rectified and filtered is used as output, and meanwhile, the storage battery is charged through the storage battery charging module after passing through the AC/DC power supply module. When the main power is off, the storage battery generates high-voltage direct current output power supply through the DC/DC boosting module and the power supply switching module.
Preferably, the storage battery charging module comprises a charging management chip U22 working circuit, wherein the model of the charging management chip U22 is CN3768, a DRV pin of the charging management chip U22 is connected with a G pin of a field effect transistor U11, a VG pin of the charging management chip U22 is connected with an S pin of a field effect transistor U11, a D pin of a field effect transistor U11 is connected with an anode of a diode D19, a cathode of the diode D19 is connected with a first end of a resistor R100 through an inductor L10, and a second end of the resistor R100 is connected with a storage battery.
Preferably, the field effect transistor U11 is of type AO 4459.
Preferably, the DC/DC boost module comprises a control module, a voltage transformation module, a feedback module and a judgment module, wherein an input end of the judgment module is connected to the storage battery, an output end of the judgment module is connected to an input end of the control module, an output end of the control module is connected to the voltage transformation module, an output end of the voltage transformation module is connected to the feedback module, and an output end signal of the feedback module is fed back to the control module. The judgment module firstly judges whether the voltage of the storage battery is enough, the control module is switched on when the voltage of the storage battery is enough, the control module controls the voltage transformation module to boost, the feedback module collects the boosted voltage and feeds the boosted voltage back to the control module, and then the control module performs corresponding adjustment.
Preferably, the control module comprises a controller U1 and an operating circuit of a controller U1, wherein the model of the controller U1 is UC 3843. The voltage type feedback forward switching power supply which is controlled by the UC3843 chip is matched with the modules, has overcurrent protection and short-circuit protection, and also has the function of over-discharge protection of the storage battery.
Preferably, the feedback module comprises a reference source U4 and a photoelectric coupling tube U20, the output end of the voltage transformation module is connected with the anode input end of a photoelectric coupling tube U20 through a plurality of resistors, the anode input end of a photoelectric coupling tube U20 is connected with the cathode input end of a photoelectric coupling tube U20 and the reference source U4 through resistors, and the output end of a photoelectric coupling tube U20 is connected with a COMP pin of a controller U1.
Preferably, the determination module includes a reference source U3 and a comparator U2, the battery is connected to the reference source U3, an input terminal of the comparator U2 and a collector of a transistor Q2, an output terminal of the comparator U2 is connected to a base of a transistor Q2, and an emitter of the transistor Q2 is connected to an input terminal of the controller U1. The judgment module is mainly used for monitoring the voltage of the storage battery, and disconnecting the UC3843 power supply when the voltage is lower than a set cut-off threshold value, and the control module stops working; and when the voltage of the storage battery rises to the restart threshold value again, the storage battery restarts to work.
The beneficial effects of the utility model include: simple structure, it is multiple functional, have good protection to the battery, be favorable to increase of service life, the security is high.
Drawings
FIG. 1 is a schematic diagram of an embodiment of the present invention;
fig. 2 is a schematic circuit diagram of a DC/DC boost module according to an embodiment of the present invention;
fig. 3 is a schematic circuit diagram of a battery charging module according to an embodiment of the present invention;
the figure includes: the device comprises a 1-AC/DC power supply module, a 2-storage battery charging module, a 3-12V storage battery, a 4-DC/DC boosting module, a 5-rectifying and filtering module and a 6-power supply switching module.
Detailed Description
The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application. Furthermore, in the following detailed description, numerous specific details are set forth in order to provide a better understanding of the present invention. It will be understood by those skilled in the art that the present invention may be practiced without some of these specific details. In some instances, methods, means, elements and circuits that are well known to those skilled in the art have not been described in detail so as not to obscure the present invention.
Example (b):
as shown in fig. 1, the micro uninterruptible power supply converter includes a rectifying and filtering module 5, a 12V battery 3, a battery charging module 2 and a power switching module 6, and further includes an AC/DC power module 1 and a DC/DC boosting module 4, the input end of the AC/DC power module 1 is connected to the commercial power, the output end of the AC/DC power module 1 is connected to the input end of the battery charging module 2, the output end of the battery charging module 2 is connected to the 12V battery 3, the 12V battery 3 is connected to the input end of the DC/DC boosting module 4, the input end of the rectifying and filtering module 5 is connected to the commercial power, the output end of the rectifying and filtering module 5 and the output end of the DC/DC boosting module 4 are connected to the input end of the power switching module 6, and the output end.
When a main power is input, high-voltage direct current generated after the main power is rectified and filtered is used as output, and meanwhile, the storage battery is charged through the storage battery charging module 2 after passing through the AC/DC power supply module 1. When the main power is off, the storage battery generates high-voltage direct current output power supply through the DC/DC boosting module and the power supply switching module 6. The AC/DC power supply module 1 converts the AC power supply (AC 85V-265V) of the main power input into DC15V power supply.
The DC/DC boosting module 4 comprises a control module, a voltage transformation module, a feedback module and a judgment module, wherein the input end of the judgment module is connected with the storage battery, the output end of the judgment module is connected with the input end of the control module, the output end of the control module is connected with the voltage transformation module, the output end of the voltage transformation module is connected with the feedback module, and an output end signal of the feedback module is fed back to the control module. The judgment module firstly judges whether the voltage of the storage battery is enough, the control module is switched on when the voltage of the storage battery is enough, the control module controls the voltage transformation module to boost, the feedback module collects the boosted voltage and feeds the boosted voltage back to the control module, and then the control module performs corresponding adjustment.
Fig. 2 is a schematic current diagram of the DC/DC boost module 4, wherein the control module includes an operating circuit of the controller U1 and the controller U1, and the controller U1 is of the type UC 3843. The voltage type feedback forward switching power supply which is controlled by the UC3843 chip is matched with the modules, has overcurrent protection and short-circuit protection, and also has the function of over-discharge protection of the storage battery.
The feedback module comprises a reference source U4 and a photoelectric coupling tube U20, the output end of the voltage transformation module is connected with the anode input end of a photoelectric coupling tube U20 through a plurality of resistors, the anode input end of a photoelectric coupling tube U20 is connected with the cathode input end of a photoelectric coupling tube U20 and the reference source U4 through resistors, and the output end of a photoelectric coupling tube U20 is connected with a COMP pin of a controller U1.
The judging module comprises a reference source U3 and a comparator U2, the storage battery is connected with the reference source U3, the input end of the comparator U2 and the collector electrode of the triode Q2, the output end of the comparator U2 is connected with the base electrode of the triode Q2, and the emitter electrode of the triode Q2 is connected with the input end of the controller U1. The judgment module is mainly used for monitoring the voltage of the storage battery, and disconnecting the UC3843 power supply when the voltage is lower than a set cut-off threshold value, and the control module stops working; and when the voltage of the storage battery rises to the restart threshold value again, the storage battery restarts to work.
As shown in FIG. 3, the battery charging module 2 comprises a charging management chip U22 operating circuit, wherein the model of the charging management chip U22 is CN3768, the DRV pin of the charging management chip U22 is connected with the G pin of the field effect transistor U11, the VG pin of the charging management chip U22 is connected with the S pin of the field effect transistor U11, the D pin of the field effect transistor U11 is connected with the anode of the diode D19, the cathode of the diode D19 is connected with the first end of the resistor R100 through the inductor L, and the second end of the resistor R100 is connected with the battery.
When there is a main power input, the present embodiment takes the 310V high voltage dc generated after the main power is rectified and filtered as the output power. When the main power is off, the storage battery generates 140V high-voltage direct-current output power supply through other modules.
Through the description of the above embodiments, those skilled in the art will understand that, for convenience and simplicity of description, only the division of the above functional modules is used as an example, and in practical applications, the above function distribution may be completed by different functional modules according to needs, that is, the internal structure of the device is divided into different functional modules to complete all or part of the above described functions.
Units described as separate parts may or may not be physically separate, and parts displayed as units may be one physical unit or a plurality of physical units, may be located in one place, or may be distributed to a plurality of different places. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (7)
1. The utility model provides a miniature uninterrupted power source converter, includes rectification filter module, battery charging module and power switching module, its characterized in that still includes AC/DC power module and DC/DC module of stepping up, the commercial power is connected to AC/DC power module's input, and the input of battery charging module is connected to AC/DC power module's output, and the battery is connected to battery charging module's output, and the input of DC/DC module of stepping up is connected to the battery, and the commercial power is connected to rectification filter module's input, and the input of power switching module is connected to rectification filter module's output and DC/DC module's output, and the output of power switching module is connected with electrical apparatus.
2. The converter of claim 1, wherein the battery charging module comprises a charging management chip U22 operating circuit, wherein the charging management chip U22 has a model number CN3768, a DRV pin of the charging management chip U22 is connected to a G pin of the fet U11, a VG pin of the charging management chip U22 is connected to an S pin of the fet U11, a D pin of the fet U11 is connected to an anode of the diode D19, a cathode of the diode D19 is connected to a first end of the resistor R100 through the inductor L10, and a second end of the resistor R100 is connected to the battery.
3. A miniature ups converter according to claim 2 wherein said fet U11 is model AO 4459.
4. The converter according to claim 2 or 3, wherein the DC/DC boost module comprises a control module, a voltage transformation module, a feedback module and a judgment module, an input terminal of the judgment module is connected to the battery, an output terminal of the judgment module is connected to an input terminal of the control module, an output terminal of the control module is connected to the voltage transformation module, an output terminal of the voltage transformation module is connected to the feedback module, and an output terminal signal of the feedback module is fed back to the control module.
5. The converter according to claim 4, wherein the control module comprises an operating circuit of controller U1 and controller U1, wherein controller U1 is of model UC 3843.
6. The converter of claim 5, wherein the feedback module comprises a reference source U4 and a photoelectric coupling tube U20, the output terminal of the voltage transformation module is connected to the anode input terminal of the photoelectric coupling tube U20 through a plurality of resistors, the anode input terminal of the photoelectric coupling tube U20 is connected to the cathode input terminal of the photoelectric coupling tube U20 and the reference source U4 through resistors, and the output terminal of the photoelectric coupling tube U20 is connected to the COMP pin of the controller U1.
7. The converter according to claim 6, wherein the determining module comprises a reference source U3 and a comparator U2, the battery is connected to the reference source U3, the input terminal of the comparator U2 and the collector of a transistor Q2, the output terminal of the comparator U2 is connected to the base of a transistor Q2, and the emitter terminal of the transistor Q2 is connected to the input terminal of the controller U1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922024084.3U CN211063405U (en) | 2019-11-21 | 2019-11-21 | Miniature uninterrupted power source converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922024084.3U CN211063405U (en) | 2019-11-21 | 2019-11-21 | Miniature uninterrupted power source converter |
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| CN211063405U true CN211063405U (en) | 2020-07-21 |
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| CN201922024084.3U Active CN211063405U (en) | 2019-11-21 | 2019-11-21 | Miniature uninterrupted power source converter |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113288205A (en) * | 2021-05-08 | 2021-08-24 | 中国人民解放军西部战区总医院 | TCD detection device and operation circuit thereof |
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2019
- 2019-11-21 CN CN201922024084.3U patent/CN211063405U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113288205A (en) * | 2021-05-08 | 2021-08-24 | 中国人民解放军西部战区总医院 | TCD detection device and operation circuit thereof |
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