CN113676036B - Outdoor base station steady voltage power supply unit - Google Patents
Outdoor base station steady voltage power supply unit Download PDFInfo
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- CN113676036B CN113676036B CN202111237117.8A CN202111237117A CN113676036B CN 113676036 B CN113676036 B CN 113676036B CN 202111237117 A CN202111237117 A CN 202111237117A CN 113676036 B CN113676036 B CN 113676036B
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/32—Means for protecting converters other than automatic disconnection
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00006—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment
- H02J13/00022—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment using wireless data transmission
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00006—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment
- H02J13/00022—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment using wireless data transmission
- H02J13/00026—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment using wireless data transmission involving a local wireless network, e.g. Wi-Fi, ZigBee or Bluetooth
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00032—Systems characterised by the controlled or operated power network elements or equipment, the power network elements or equipment not otherwise provided for
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M3/00—Conversion of dc power input into dc power output
- H02M3/02—Conversion of dc power input into dc power output without intermediate conversion into ac
- H02M3/04—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters
- H02M3/10—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M3/145—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
- H02M3/155—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
- H02M3/156—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators
- H02M3/158—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators including plural semiconductor devices as final control devices for a single load
- H02M3/1582—Buck-boost converters
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M3/00—Conversion of dc power input into dc power output
- H02M3/22—Conversion of dc power input into dc power output with intermediate conversion into ac
- H02M3/24—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters
- H02M3/28—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac
- H02M3/325—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal
- H02M3/335—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only
- H02M3/337—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only in push-pull configuration
- H02M3/3376—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only in push-pull configuration with automatic control of output voltage or current
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J2213/00—Indexing scheme relating to details of circuit arrangements for providing remote indication of network conditions of for circuit arrangements for providing remote control of switching means in a power distribution network
- H02J2213/10—Indexing scheme relating to details of circuit arrangements for providing remote indication of network conditions of for circuit arrangements for providing remote control of switching means in a power distribution network using simultaneously two or more different transmission means
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02B90/20—Smart grids as enabling technology in buildings sector
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S40/00—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
- Y04S40/12—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment
- Y04S40/126—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment using wireless data transmission
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Computer Networks & Wireless Communication (AREA)
- Dc-Dc Converters (AREA)
Abstract
The invention discloses a voltage-stabilizing power supply device for an outdoor base station, which relates to the technical field of power supplies and comprises a temperature detection module, a main control module, a DC/DC conversion module, a base station power supply module, a voltage conversion module, a voltage-stabilizing module, a voltage detection module and a communication module; the temperature detection module is used for detecting temperature, the main control module is used for receiving signals and outputting data signals and control signals, the DC/DC conversion module and the voltage conversion module are used for performing voltage conversion, the voltage detection module is used for detecting voltage stabilization signals, and the communication module is used for data interaction with a user side. The outdoor base station voltage-stabilizing power supply device carries out temperature detection on the base station power supply and automatically controls the management of the base station power supply, so that the effective cooling of the power supply is realized, the output voltage-stabilizing characteristic is higher and the utilization rate of voltage is higher through the control of the self-excitation push-pull type switching power supply, and the outdoor base station power supply can be remotely detected, so that the loss of human resources is reduced.
Description
Technical Field
The invention relates to the technical field of power supplies, in particular to a voltage-stabilizing power supply device for an outdoor base station.
Background
With the rapid development of mobile communication, the number of outdoor base stations is continuously increased, the construction of base stations becomes a key work for extending the coverage of mobile signals, the technical content and complexity of base station equipment are higher and higher, correspondingly, higher requirements are put on the stability and reliability of an outdoor base station power supply, the base station power supply is an important component for ensuring the stable work of the base station, the outdoor base stations in the market at present are in the external environment for a long time, the performance of the base station power supply is easy to be reduced due to external influence, and the normal voltage-stabilizing power supply cannot be realized, most outdoor base stations adopt an external heat removal mode to reduce the temperature of a power supply, but cannot completely ensure the temperature reduction of the power supply, the voltage stabilization characteristic of the output of a switching power supply is poor, the utilization rate of voltage is low, and the outdoor base station does not have the remote control function and can not intelligently detect the power supply condition of the base station power supply.
Disclosure of Invention
The embodiment of the invention provides a voltage-stabilizing power supply device for an outdoor base station, which aims to solve the problems in the background technology.
According to a first aspect of the embodiments of the present invention, there is provided an outdoor base station voltage-stabilizing power supply apparatus, which includes a temperature detection module, a main control module, a DC/DC conversion module, a base station power supply module, a voltage conversion module, a voltage stabilization module, a voltage detection module, and a communication module;
the temperature detection module is used for detecting the temperature of the outdoor base station power supply and outputting a temperature signal;
the main control module is used for receiving the temperature signal output by the temperature detection module and the voltage signal output by the voltage detection module, processing the received signals and outputting a data signal and a control signal;
the DC/DC conversion module is used for receiving the control signal output by the main control module and is used for carrying out DC/DC conversion on the output voltage;
the base station power supply module is used for receiving the voltage output by the DC/DC conversion module and outputting direct current;
the voltage conversion module is used for converting the direct current output by the outdoor base station power supply into a plurality of paths of alternating current;
the voltage stabilizing module is used for converting the alternating current output by the voltage conversion module into direct current stabilizing voltage;
the voltage detection module is used for detecting the voltage signal output by the voltage stabilization module;
and the communication module is used for receiving the data signal output by the main control module and interacting with the user side.
Compared with the prior art, the invention has the beneficial effects that: the outdoor base station voltage-stabilizing power supply device disclosed by the invention is used for detecting the temperature of the base station power supply, when the temperature is too high, the management of the base station power supply is automatically controlled, the effective cooling of the base station power supply is realized, the damage of the base station power supply is avoided, the power supply precision is improved, the output voltage-stabilizing characteristic is higher and the voltage utilization rate is higher through the control of the self-excitation push-pull type switching power supply, and the outdoor base station power supply can be remotely detected, so that the loss of human resources is reduced.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments of the present invention will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.
Fig. 1 is a schematic block diagram of a voltage-stabilizing power supply device for an outdoor base station according to an embodiment of the present invention.
Fig. 2 is a block diagram of a voltage conversion module according to an embodiment of the present invention.
Fig. 3 is a circuit diagram of a voltage-stabilizing power supply device for an outdoor base station according to an embodiment of the present invention.
Fig. 4 is a circuit diagram of a temperature detection module and a voltage detection module according to an embodiment of the present invention.
Fig. 5 is a schematic block diagram of a communication module according to an embodiment of the present invention.
Detailed Description
The technical solutions 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 a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, an embodiment of the present invention provides an outdoor base station voltage-stabilizing power supply apparatus, which includes a temperature detection module 1, a main control module 2, a DC/DC conversion module 3, a base station power supply module 4, a voltage conversion module 5, a voltage-stabilizing module 6, a voltage detection module 7, and a communication module 8;
specifically, the temperature detection module 1 is configured to detect a temperature of the outdoor base station power supply V2 and output a temperature signal; the temperature detection module 1 is connected with the first end of the main control module 2;
the main control module 2 is used for receiving the temperature signal output by the temperature detection module 1 and the voltage signal output by the voltage detection module 7, processing the received signals and outputting a data signal and a control signal; the second end of the main control module 2 is connected with the first end of the DC/DC conversion module 3;
the DC/DC conversion module 3 is used for receiving the control signal output by the main control module 2 and carrying out DC/DC conversion on the output voltage; the second end of the DC/DC conversion module 3 is connected with the first end of the base station power supply module 4;
a base station power supply module 4, configured to receive the voltage output by the DC/DC conversion module 3, and output a direct current; the second end of the base station power supply module 4 is connected with the first end of the voltage conversion module 5;
the voltage conversion module 5 is used for converting the direct current output by the outdoor base station power supply V2 into a plurality of paths of alternating currents; the second end of the voltage conversion module 5 is connected with the first end of the voltage stabilizing module 6;
the voltage stabilizing module 6 is used for converting the alternating current output by the voltage conversion module 5 into direct current stabilizing voltage; the second end of the voltage stabilizing module 6 is connected with the first end of the voltage detection module 7;
the voltage detection module 7 is used for detecting the voltage signal output by the voltage stabilization module 6; the second end of the voltage detection module 7 is connected with the third end of the main control module 2;
the communication module 8 is used for receiving the data signals output by the main control module 2 and interacting with a user side; the communication module 8 is connected to the fourth terminal of the main control module 2.
In a specific embodiment, the temperature detecting module 1 may detect the temperature of the base station power supply V2 by using a temperature sensor J1; the main control module 2 may adopt a single chip or a Central Processing Unit (CPU) to receive the acquired signals, process and send control signals and transmit data; the DC/DC conversion module 3 can adopt a control mode of a single-stage bridgeless BOOST-BUCK circuit, adopts a set of control circuit, and controls the DC/DC conversion by the driving of the main control module 2, thereby reducing the cost and simplifying the control mode of the main control module 2; the base station power supply module 4 is a reference power supply, which is not described herein again; the voltage conversion module 5 can adopt a control mode of a self-excitation push-pull power supply to realize output voltage stabilization, and the control mode of the power supply has higher voltage stabilization characteristic and higher voltage utilization rate; the voltage stabilizing module 6 can adopt a voltage stabilizer to perform AC/DC (alternating current/direct current) conversion, and further stabilize the voltage and output the voltage through the required voltage stabilizer; the voltage detection module 7 can detect the output voltage by adopting a multi-stage resistance voltage division type detection method, so that the detection precision of the voltage detection module 7 is improved; the communication module 8 can adopt a ZIGBEE and GPRS dual-network communication mode to realize wireless control and long-distance and short-distance data transmission.
Example 2: based on embodiment 1, please refer to fig. 2, fig. 3 and fig. 4, in an embodiment of the voltage-stabilizing power supply apparatus for an outdoor base station according to the present invention, the DC/DC conversion module 3 includes a charging interface V1, a first inductor L1, a first diode D1, a second diode D2, a third diode D3, a fourth diode D4, a fifth diode D5, a sixth diode D6, a first switch tube M1, a second switch tube M2, a second inductor L2, a first capacitor C1 and a second capacitor C2;
specifically, the charging interface V1 is connected to the drain of the first switch tube M1, the anode of the fourth diode D4, and the cathode of the fifth diode D5 through the first inductor L1, the source of the first switch tube M1 is connected to the anode of the third diode D3 and the cathode of the second diode D2 through the first diode D1, the cathode of the third diode D3 is connected to the first capacitor C1, the cathode of the fourth diode D4, and the source of the second switch tube M2, the anode of the fifth diode D5 is connected to the cathode of the sixth diode D6 and the drain of the second switch tube M2 and is connected to the first end of the second capacitor C2 through the second inductor L2, and the anode of the second diode D2 is connected to the other end of the first capacitor C1, the anode of the sixth diode D6, and the second end of the second capacitor C2.
Further, the main control module 2 includes a first controller U1; the temperature detection module 1 comprises a temperature sensor J1, an eighth resistor R8 and a first power supply + 5V;
specifically, a first driving end of the first controller U1 is connected to the gate of the first switching tube M1, a second driving end of the first controller U1 is connected to the gate of the second switching tube M2, a third IO end of the first controller U1 is connected to a second end of the temperature sensor J1, a first end of the temperature sensor J1 is grounded, and a third end of the temperature sensor J1 is connected to +5V of the first power supply through the eighth resistor R8.
Further, the base station power supply module 4 includes a base station power supply V2; the voltage conversion module 5 comprises a DC/AC conversion unit 501 and an AC/AC conversion unit 502;
specifically, a DC/AC conversion unit 501 for converting the direct current output from the base station power supply V2 into alternating current;
an AC/AC conversion unit 502 for AC-AC converting the alternating current output by the DC/AC conversion unit 501; the first end of the DC/AC converting unit 501 is connected to the second end of the base station power supply module 4, the second end of the DC/AC converting unit 501 is connected to the first end of the AC/AC converting unit 502, and the second end of the AC/AC converting unit 502 is connected to the first end of the voltage stabilizing module 6.
Further, the DC/AC conversion unit 501 includes a third capacitor C3, a first resistor R1, a second resistor R2, a third resistor R3, a fourth resistor R4, a third switching tube N1, and a fourth switching tube N2;
specifically, the base station power supply V2 is connected to a first end of a first capacitor C1 and a first end of a first resistor R1, the other end of the base station power supply V2 is connected to the other end of a third capacitor C3 and a second resistor R2, the other end of a second resistor R2 is connected to a second end of the first resistor R1, a first end of the third resistor R3 is connected to a base of a third switch tube N1, an emitter of the third switch tube N1 is connected to an emitter and a ground of a fourth switch tube N2, and a first end of the fourth resistor R4 is connected to a base of a fourth switch tube N2.
Further, the AC/AC converting unit 502 includes a transformer N;
specifically, a dotted terminal of the first primary winding NA1 of the transformer N is connected to the second terminal of the first resistor R1 and the dotted terminal of the second primary winding NA2 of the transformer N, a dotted terminal of the first primary winding NA1 of the transformer N is connected to the second terminal of the third resistor R3, a dotted terminal of the second primary winding NA2 of the transformer N is connected to the second terminal of the fourth resistor R4, a dotted terminal of the third primary winding NB1 of the transformer N is connected to the collector of the third switching tube N1, a dotted terminal of the third primary winding NB1 of the transformer N is connected to the dotted terminal of the fourth primary winding NB2 of the transformer N and the first terminal of the first resistor R1, and a dotted terminal of the fourth primary winding NB2 of the transformer N is connected to the collector of the fourth switching tube N2.
Further, the voltage stabilizing module 6 includes a rectifier G, a fourth capacitor C4, a fifth capacitor C5, a sixth capacitor C6, a seventh capacitor C7, a first regulator IC1, and a second regulator IC 2;
specifically, a first end of the rectifier G is connected to a dotted end of the first secondary winding of the transformer N, a third end of the rectifier G is connected to a dotted end of the second secondary winding of the transformer N, the dotted end of the first secondary winding of the transformer N and the dotted end of the second secondary winding of the transformer N are grounded, a second end of the rectifier G is connected to the fourth capacitor C4 and the first end of the first regulator IC1, a fourth end of the rectifier G is connected to the sixth capacitor C6 and the first end of the second regulator IC2, the other end of the sixth capacitor C6, the other end of the fourth capacitor C4, the third end of the first regulator IC1, the third end of the second regulator IC2, the fifth capacitor C5 and the sixth capacitor C6 are grounded together, a second end of the first regulator IC1 is connected to the other end of the fifth capacitor C5, and a second end of the second regulator IC2 is connected to the other end of the seventh capacitor C7.
Further, the voltage detection module 7 includes a fifth resistor R5, a sixth resistor R6, a seventh resistor R7, a first analog switch S1, a second analog switch S2, a reference voltage source V3, and a first operational amplifier a 1;
specifically, a first end of the fifth resistor R5 is connected to a second end of the first regulator IC1, a second end of the fifth resistor R5 is connected to the sixth resistor R6 and the first analog switch S1, the other end of the sixth resistor R6 is connected to the seventh resistor R7 and the second analog switch S2, the other end of the seventh resistor R7 is grounded, the other end of the first analog switch S1 is connected to the other end of the second analog switch S2, the non-inverting end of the first operational amplifier a1 and the first end of the first controller U1, the inverting end of the first operational amplifier a1 is connected to the reference voltage source V3, and the output end of the first operational amplifier a1 is connected to the second end of the first controller U1.
In a specific embodiment, the first switch tube M1 and the second switch tube M2 are N-channel enhancement MOSFETs (Metal-Oxide-Semiconductor Field-Effect transistors), the first diode D1 to the sixth diode D6 are fast diodes, and the first capacitor C1 is an energy storage intermediate capacitor, wherein the first switch tube M1 and the second switch tube M2 form a bridgeless BOOST circuit to realize BOOST control, and the second switch tube M2, the sixth diode D6, the second inductor L2 and the second capacitor C2 form a BUCK circuit to perform BUCK control; the first controller U1 can select an STM32 series single chip microcomputer to realize the control of the outdoor base station voltage-stabilizing power supply device; the third switch tube N1 and the fourth switch tube N2 are NPN triodes, and through alternate conduction of the two high-frequency triodes, a square wave voltage is generated at the collector of the NPN triodes, so that oscillation is formed, and alternating current is formed on the secondary winding of the transformer N; the first voltage stabilizer IC1 and the second voltage stabilizer IC2 are the same voltage stabilizer and can be selected according to the voltage stabilizing value required by a user, and the three-terminal integrated voltage stabilizer of the LM78 series can be selected to realize voltage stabilizing output; the first operational amplifier a1 can select an LM339 comparator or an LM290 comparator to compare output voltages, and the first analog switch S1 and the second analog switch S2 are controlled by the first controller U1 to change a resistance value during detection, thereby realizing high-precision voltage detection.
Example 3: on the basis of embodiment 1, please refer to fig. 5, in an embodiment of the voltage-stabilizing and power-supplying apparatus for an outdoor base station according to the present invention, the communication module 8 includes a first communication unit 801, a second communication unit 802, a first serial port unit 803, a second serial port unit 804, a third communication unit 805, a server center 806, and a user terminal 807;
the first communication unit 801 is configured to receive and output a data signal output by the main control module 2;
the second communication unit 802 is configured to receive the data signal output by the first communication unit 801;
the first serial port unit 803 and the second serial port unit 804 are configured to support a network link structure and forward a data signal output by the second communication unit 802 to the server center 806 and the third communication unit 805, respectively;
the third communication unit 805 is configured to receive the data forwarded by the second serial port unit 804 and establish a communication network with the user terminal 807;
the first end of the first communication unit 801 is connected to the fourth end of the main control module 2, the second end of the first communication unit 801 is wirelessly connected to the first end of the second communication unit 802, the second end of the second communication unit 802 is connected to the server center 806 through the first serial port unit 803, the second end of the second communication unit 802 is further connected to the first end of the third communication unit 805 through the second serial port unit 804, and the second end of the third communication unit 805 is connected to the user terminal 807.
In a specific embodiment, the first communication unit 801 and the second communication unit 802 may adopt CC2530 chips to implement data transmission in the ZIGBEE network, and the first communication unit 801 serves as a terminal node to receive data transmitted by the main control module 2, and serves as a coordinator to receive and process the data through the second communication unit 802; the first serial port unit 803 may adopt an RS-232 interface and an MAX232 converter to implement level conversion and perform data interaction with the server center 806; the second serial port unit 804 may adopt a UART (Universal Asynchronous Receiver/Transmitter, Asynchronous receiving/transmitting Transmitter) port plus a MAX232 converter to realize level conversion and connection with the third communication unit 805; the third communication unit 805 may be connected to a GPRS (General packet radio service) network by using a GTM900 chip, so as to implement data interaction with the user terminal 807.
In the embodiment of the invention, the temperature of the outdoor base station power supply V2 is detected by the temperature sensor J1, when the temperature is too high, the main control module 2 controls the DC/DC conversion module 3 to reduce the voltage, so as to slowly charge the base station power supply V2, avoid the output voltage instability caused by the damage of the inside of the base station power supply V2 due to the too high temperature inside the outdoor base station power supply V2, the base station power supply V2 performs multi-path voltage output by a self-excited push-pull control manner in the voltage conversion module 5, and outputs the regulated voltage through the voltage regulation module 6, the output regulated voltage is detected through the voltage detection module 7, the detected signals are transmitted to the server center 806 and the user terminal 807 through the communication module 8, when the voltage jumps, exceeds or is lower than a set value, an alarm signal is sent immediately to inform related personnel to control and maintain, so that the real-time detection of the outdoor base station power supply V2 is realized; in the voltage conversion module 5, square wave voltage is generated on the collector electrode of the two high-frequency triodes through alternate conduction of the two high-frequency triodes, so that oscillation is formed, alternating current is formed on a secondary winding of the transformer N, required voltage stabilization is obtained by utilizing the rectifier G and the voltage stabilizer, and data transmission is realized through combination of a ZIGBEE network and a GPRS network in the communication module 8.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. 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 (7)
1. The utility model provides an outdoor base station steady voltage power supply unit which characterized in that:
the voltage-stabilizing power supply device for the outdoor base station comprises a temperature detection module, a main control module, a DC/DC conversion module, a base station power supply module, a voltage conversion module, a voltage stabilizing module, a voltage detection module and a communication module;
the temperature detection module is used for detecting the temperature of the outdoor base station power supply and outputting a temperature signal;
the main control module is used for receiving the temperature signal output by the temperature detection module and the voltage signal output by the voltage detection module, processing the received signals, outputting a data signal and a control signal, controlling the DC/DC conversion module to reduce the voltage, and slowly charging the base station power supply;
the DC/DC conversion module is used for receiving the control signal output by the main control module and performing DC/DC conversion on the output voltage by adopting a single-stage bridgeless boost-buck circuit;
the base station power supply module is used for receiving the voltage output by the DC/DC conversion module and outputting direct current;
the voltage conversion module is used for receiving the control signal output by the main control module and performing DC/DC conversion on the output voltage;
the base station power supply module comprises a base station power supply;
the voltage conversion module comprises a DC/AC conversion unit and an AC/AC conversion unit;
the DC/AC conversion unit is used for converting the direct current output by the base station power supply into alternating current;
the AC/AC conversion unit is used for carrying out AC-AC conversion on the alternating current output by the DC/AC conversion unit;
the first end of the DC/AC conversion unit is connected with the second end of the base station power supply module, the second end of the DC/AC conversion unit is connected with the first end of the AC/AC conversion unit, and the second end of the AC/AC conversion unit is connected with the first end of the voltage stabilizing module;
the voltage stabilizing module is used for converting the alternating current output by the voltage conversion module into direct current stabilizing voltage;
the voltage detection module is used for detecting the voltage signal output by the voltage stabilization module;
the communication module is used for receiving the data signal output by the main control module and interacting with a user side;
the DC/DC conversion module comprises a charging interface, a first inductor, a first diode, a second diode, a third diode, a fourth diode, a fifth diode, a sixth diode, a first switch tube, a second inductor, a first capacitor and a second capacitor;
the charging interface is connected with a drain electrode of the first switch tube, an anode of the fourth diode and a cathode of the fifth diode through the first inductor, a source electrode of the first switch tube is connected with an anode of the third diode and a cathode of the second diode through the first diode, a cathode of the third diode is connected with the first capacitor, a cathode of the fourth diode and a source electrode of the second switch tube, an anode of the fifth diode is connected with a cathode of the sixth diode and a drain electrode of the second switch tube and is connected with a first end of the second capacitor through the second inductor, and an anode of the second diode is connected with the other end of the first capacitor, an anode of the sixth diode and a second end of the second capacitor.
2. The outdoor base station voltage-stabilizing power supply device according to claim 1, wherein the main control module comprises a first controller; the temperature detection module comprises a temperature sensor, an eighth resistor and a first power supply;
the first driving end of the first controller is connected with the grid electrode of the first switch tube, the second driving end of the first controller is connected with the grid electrode of the second switch tube, the third IO end of the first controller is connected with the second end of the temperature sensor, the first end of the temperature sensor is grounded, and the third end of the temperature sensor is connected with the first power supply through the eighth resistor.
3. The outdoor base station voltage-stabilizing power supply device according to claim 2, wherein the DC/AC conversion unit comprises a third capacitor, a first resistor, a second resistor, a third resistor, a fourth resistor, a third switch tube and a fourth switch tube;
the base station power supply is connected with the first ends of the first capacitor and the first resistor, the other end of the base station power supply is connected with the other end of the third capacitor and the second resistor, the other end of the second resistor is connected with the second end of the first resistor, the first end of the third resistor is connected with the base electrode of the third switching tube, the emitting electrode of the third switching tube is connected with the emitting electrode and the ground end of the fourth switching tube, and the first end of the fourth resistor is connected with the base electrode of the fourth switching tube.
4. An outdoor base station voltage stabilization and power supply device according to claim 3, wherein the AC/AC conversion unit comprises a transformer;
the dotted terminal of the first primary winding of the transformer is connected with the second end of the first resistor and the dotted terminal of the second primary winding of the transformer, the dotted terminal of the first primary winding of the transformer is connected with the second end of the third resistor, the dotted terminal of the second primary winding of the transformer is connected with the second end of the fourth resistor, the dotted terminal of the third primary winding of the transformer is connected with the collector of the third switching tube, the dotted terminal of the third primary winding of the transformer is connected with the dotted terminal of the fourth primary winding of the transformer and the first end of the first resistor, and the dotted terminal of the fourth primary winding of the transformer is connected with the collector of the fourth switching tube.
5. The outdoor base station voltage-stabilizing power supply device according to claim 4, wherein the voltage-stabilizing module rectifier, a fourth capacitor, a fifth capacitor, a sixth capacitor, a seventh capacitor, a first voltage stabilizer and a second voltage stabilizer;
the first end of the rectifier is connected with the homonymous end of the first secondary winding of the transformer, the third end of the rectifier is connected with the heteronymous end of the second secondary winding of the transformer, the heteronymous end of the first secondary winding of the transformer and the homonymous end of the second secondary winding of the transformer are grounded, the second end of the rectifier is connected with the fourth capacitor and the first end of the first voltage stabilizer, the fourth end of the rectifier is connected with the sixth capacitor and the first end of the second voltage stabilizer, the other end of the sixth capacitor, the other end of the fourth capacitor, the third end of the first voltage stabilizer, the third end of the second voltage stabilizer, the fifth capacitor and the sixth capacitor are grounded together, the second end of the first voltage stabilizer is connected with the other end of the fifth capacitor, and the second end of the second voltage stabilizer is connected with the other end of the seventh capacitor.
6. The outdoor base station voltage-stabilizing power supply device according to claim 5, wherein the voltage detection module comprises a fifth resistor, a sixth resistor, a seventh resistor, a first analog switch, a second analog switch, a reference voltage source and a first operational amplifier;
the first end of the fifth resistor is connected with the second end of the first voltage stabilizer, the second end of the fifth resistor is connected with the sixth resistor and the first analog switch, the other end of the sixth resistor is connected with the seventh resistor and the second analog switch, the other end of the seventh resistor is grounded, the other end of the first analog switch is connected with the other end of the second analog switch, the in-phase end of the first operational amplifier and the first end of the first controller, the inverting end of the first operational amplifier is connected with the reference voltage source, and the output end of the first operational amplifier is connected with the second end of the first controller.
7. The outdoor base station voltage-stabilizing power supply device according to claim 1, wherein the communication module comprises a first communication unit, a second communication unit, a first serial port unit, a second serial port unit, a third communication unit, a server center and a user terminal;
the first communication unit is used for receiving and outputting the data signal output by the main control module;
the second communication unit is used for receiving the data signal output by the first communication unit;
the first serial port unit and the second serial port unit are used for supporting a network link structure and respectively forwarding the data signals output by the second communication unit to the server center and the third communication unit;
the third communication unit is used for receiving the data forwarded by the second serial port unit and establishing a communication network with the user terminal;
the first end of the first communication unit is connected with the fourth end of the main control module, the second end of the first communication unit is wirelessly connected with the first end of the second communication unit, the second end of the second communication unit is connected with the server center through the first serial port unit, the second end of the second communication unit is connected with the first end of the third communication unit through the second serial port unit, and the second end of the third communication unit is connected with the user terminal.
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