CN103384080A - Alternating current and direct current power supply changeover power supply device - Google Patents
Alternating current and direct current power supply changeover power supply device Download PDFInfo
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- CN103384080A CN103384080A CN 201210134581 CN201210134581A CN103384080A CN 103384080 A CN103384080 A CN 103384080A CN 201210134581 CN201210134581 CN 201210134581 CN 201210134581 A CN201210134581 A CN 201210134581A CN 103384080 A CN103384080 A CN 103384080A
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Abstract
The invention belongs to the technical field of mobile communication, and particularly relates to an alternating current and direct current power supply changeover power supply device for power supply of a repeater. The alternating current and direct current power supply changeover power supply device is simple in structure and low in cost. The alternating current and direct current power supply changeover power supply device comprises an alternating current and direct current power supply changeover module and a storage battery, and the port of the alternating current and direct current power supply changeover module is connected with the port of electric supply, the port of the storage battery and the port of a terminal repeater respectively. The alternating current and direct current power supply changeover module comprises a rectifying circuit, a voltage-stabilized source module, an AC power failure detection controller, a push-pull converter and a charging circuit. The voltage-stabilized source module boosts the voltage after rectification and outputs the voltage to the terminal repeater. The AC power failure detection controller controls whether a circuit is switched to the push-pull converter to work by detecting electric supply signals. The push-pull converter can boost the voltage of the storage battery and then output the voltage to the repeater. The port of the charging circuit is connected with the port of the rectification circuit and the port of the storage battery.
Description
Technical field:
The invention belongs to the mobile communication technology field, relate in particular to a kind of power of alterating and direct current conversion charger for the repeater power supply.
Background technology:
In today of mobile communication technology develop rapidly, communication base station and repeater spread all over the world, and abundant communication base station and repeater coverage system have satisfied the demand of the daily mobile communication of people.But rural area and tourist district, the commercial power supply in the remote area such as suburbs is not enough and phenomenon that power supply grid easily breaks down exists for a long time, cause the terminal use can't use mobile phone communication thereby often cause mobile communication equipment to work, affect the problem of daily life and work.
For the problems referred to above, common carrier has following several solution usually:
1, buy solar cell power system.Its basic composition block diagram as shown in Figure 1.
Its operation principle is as follows:
Sunshine under normal circumstances, solar panel is power terminal equipment, be battery charging simultaneously, when the cloudy day and can't to obtain night in the situation of luminous energy be power terminal equipment by batteries, controller for solar plays the adjustment supply power voltage between terminal equipment and solar panel, batteries, control the function that batteries discharges and recharges.
Its shortcoming is that cost is higher, and cost performance is low.Be subjected to environment for use, use regional intensity of sunshine Different Effects larger, the cloudy day, and night continuously all can not be for equipment provides enough power supplies and the surperficial easily adhesive dust of solar panel, and the dust concentration great master causes absorbing the luminous energy deficiency in air, and maintenance cost is high.Terminal equipment is necessary for the solar energy special equipment.
Solar cell power system is multiplex large in intensity of sunshine, and the space is open, the area that height above sea level is higher.
2, purchase special-purpose UPS standby power system.Its basic composition block diagram as shown in Figure 2;
Its operation principle is as follows:
When mains-supplied was normal, civil power was the power supply of terminal equipment and UPS power supply unit, and controlling power supply by the power supply TCU transfer control unit of UPS inside is storage battery punching electricity; When commercial power interruption or when abnormal the UPS power supply unit to automatically switch to batteries be power terminal equipment.
Its shortcoming is that purchase cost is high, and maintenance cost is high, and environment for use is restricted, and the dustproof and waterproof performance can't be guaranteed, and is used to indoor equipment that non-firm power is provided more, and volume is subjected to the batteries volume restrictions, and often volume and weight is bigger than normal.
3, purchase the installation remote electric power system.Remote electric power system is arranged on suburbs and small towns usually, Scenic Spot Area, and its basic composition block diagram is as shown in Figure 3.
Its operation principle is as follows:
The remote electric power system near-end machine is arranged in base station machine room, the output voltage of base station direct current-48V power cabinet is boosted to the 380V direct voltage through remote electric power system, for the remote electric power system remote termination provides the power supply input; Its shortcoming is that quantities is large, and input is many in advance, and installing terminal equipment is subjected to mounting distance, environment, and the impact of physical features factor is larger, accessory cables, the optical cable laying difficulty is large.
Summary of the invention:
The present invention is exactly for the problems referred to above, and a kind of simple in structure, power of alterating and direct current that cost is low conversion charger is provided.
For achieving the above object, the present invention adopts following technical scheme, the present invention includes power of alterating and direct current modular converter and storage battery; Described power of alterating and direct current modular converter port is connected with terminal repeater port with civil power port, storage battery port respectively.
Described power of alterating and direct current modular converter comprises rectification circuit, power module of voltage regulation, AC detection of power loss controller, push-pull converter and charging circuit; Export the terminal repeater after the boost in voltage of described power module of voltage regulation after with rectification to; Whether described AC detection of power loss controller switches to push-pull converter work by detecting the civil power signal control circuit; After can boosting battery tension, described push-pull converter exports the terminal repeater to; Described charging circuit port is connected with the storage battery port with the rectification circuit port respectively.
As a kind of preferred version, power of alterating and direct current modular converter of the present invention also comprises EMI anti-jamming circuit and anti-surge circuit.
As another kind of preferred version, power of alterating and direct current modular converter of the present invention also comprises battery overvoltage/undervoltage testing circuit and battery constant voltage charge control circuit.
In addition, power of alterating and direct current modular converter of the present invention comprises that also the output overcurrent overvoltage detects controller.
Secondly, charging circuit of the present invention adopts anti exciting converter.
Beneficial effect of the present invention:
The present invention includes power of alterating and direct current modular converter and storage battery, and the power of alterating and direct current modular converter mainly comprises rectification circuit, power module of voltage regulation, AC detection of power loss controller, push-pull converter and charging circuit; Under the prerequisite that is embodied as terminal repeater power supply, circuit structure is relatively simple, and cost is low.
Description of drawings:
The invention will be further described below in conjunction with the drawings and specific embodiments.
Fig. 1 is the solar cell power system composition frame chart;
Fig. 2 is special-purpose UPS standby power system basic composition block diagram;
Fig. 3 is remote electric power system basic composition block diagram;
Fig. 4 is operation principle block diagram of the present invention;
Fig. 5 is that the present invention uses state diagram;
Fig. 6 is schematic block circuit diagram of the present invention.
Embodiment:
As shown in Fig. 4,6, the present invention includes power of alterating and direct current modular converter and storage battery; Described power of alterating and direct current modular converter port is connected with terminal repeater port with civil power port, storage battery port respectively.
Described power of alterating and direct current modular converter comprises rectification circuit, power module of voltage regulation, AC detection of power loss controller, push-pull converter and charging circuit; Export the terminal repeater after the boost in voltage of described power module of voltage regulation after with rectification to; Whether described AC detection of power loss controller switches to push-pull converter work by detecting the civil power signal control circuit; After can boosting battery tension, described push-pull converter exports the terminal repeater to; Described charging circuit port is connected with the storage battery port with the rectification circuit port respectively.
Described power of alterating and direct current modular converter also comprises EMI anti-jamming circuit and anti-surge circuit.
Described power of alterating and direct current modular converter also comprises battery overvoltage/undervoltage testing circuit and battery constant voltage charge control circuit.
Described power of alterating and direct current modular converter comprises that also the output overcurrent overvoltage detects controller.
Described charging circuit adopts anti exciting converter.
When mains-supplied was normal, the AC-DC conversion module was the terminal communication power devices, was simultaneously the battery backup charging; When commercial power interruption or when abnormal, it is the terminal communication power devices that AC-DC conversion module controls internal circuit switches to battery backup, switches back after the city power recovery is normal to be civil power confession operating state normally again.
When mains-supplied is normal, 220V exchanges and inputs when entering power transfer module, first pass through EMI anti-jamming circuit and anti-surge circuit, then carry out forming after rectification upwards 220 voltages of 100Hz waveform by rectification circuit, this voltage forming approximately through final after the interior voltage-stabilized power supply module that the effective voltage of 320V is terminal repeater power supply, is battery charging through the inner counter exciting converter simultaneously.
When the civil power middle-end and when abnormal AC detection of power loss controller can work and the inside modules operating circuit is switched to push-pull converter work, by accumulator battery voltage boost for the 320V effective voltage be terminal repeater power supply.
Wherein EMI anti-jamming circuit and anti-surge circuit provide the protection of input for power transfer module.
Battery overvoltage/undervoltage testing circuit and battery constant voltage charge control circuit provide protection for batteries.
Overcurrent-overvoltage detects controller and provides protection for terminal.
Embodiment:
The power of alterating and direct current modular converter is connected in the power terminal equipment circuit, and when the civil power alternating current 220V was normal, the power supply cross box was the 24V charge in batteries, became the 320V direct current to provide power supply for terminal equipment the 220V AC rectification simultaneously; When the civil power alternating current 220V interrupted or be abnormal, the power of alterating and direct current modular converter automatically switched to the storage battery power supply state, and it is power terminal equipment that the battery low-voltage direct current is boosted to the 320V direct current.
Claims (5)
1. power of alterating and direct current conversion charger, is characterized in that comprising power of alterating and direct current modular converter and storage battery; Described power of alterating and direct current modular converter port is connected with terminal repeater port with civil power port, storage battery port respectively.
Described power of alterating and direct current modular converter comprises rectification circuit, power module of voltage regulation, AC detection of power loss controller, push-pull converter and charging circuit; Export the terminal repeater after the boost in voltage of described power module of voltage regulation after with rectification to; Whether described AC detection of power loss controller switches to push-pull converter work by detecting the civil power signal control circuit; After can boosting battery tension, described push-pull converter exports the terminal repeater to; Described charging circuit port is connected with the storage battery port with the rectification circuit port respectively.
2. power of alterating and direct current is changed charger according to claim 1, it is characterized in that described power of alterating and direct current modular converter also comprises EMI anti-jamming circuit and anti-surge circuit.
3. described power of alterating and direct current is changed charger according to claim 1 and 2, it is characterized in that described power of alterating and direct current modular converter also comprises battery overvoltage/undervoltage testing circuit and battery constant voltage charge control circuit.
4. power of alterating and direct current is changed charger according to claim 3, it is characterized in that described power of alterating and direct current modular converter comprises that also the output overcurrent overvoltage detects controller.
5. power of alterating and direct current is changed charger according to claim 4, it is characterized in that described charging circuit adopts anti exciting converter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210134581 CN103384080A (en) | 2012-05-03 | 2012-05-03 | Alternating current and direct current power supply changeover power supply device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210134581 CN103384080A (en) | 2012-05-03 | 2012-05-03 | Alternating current and direct current power supply changeover power supply device |
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| Publication Number | Publication Date |
|---|---|
| CN103384080A true CN103384080A (en) | 2013-11-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201210134581 Pending CN103384080A (en) | 2012-05-03 | 2012-05-03 | Alternating current and direct current power supply changeover power supply device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103730950A (en) * | 2013-12-27 | 2014-04-16 | 国家电网公司 | Solar energy power supply system for signal expanding equipment |
| CN107425599A (en) * | 2017-09-13 | 2017-12-01 | 重庆大及电子科技有限公司 | Surge protection circuit for power compensator |
| CN107596590A (en) * | 2017-10-25 | 2018-01-19 | 奥来救援科技有限公司 | AC/DC electric hydaulic expander |
-
2012
- 2012-05-03 CN CN 201210134581 patent/CN103384080A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103730950A (en) * | 2013-12-27 | 2014-04-16 | 国家电网公司 | Solar energy power supply system for signal expanding equipment |
| CN103730950B (en) * | 2013-12-27 | 2016-10-05 | 国家电网公司 | The solar power supply system of equipment is expanded for signal |
| CN107425599A (en) * | 2017-09-13 | 2017-12-01 | 重庆大及电子科技有限公司 | Surge protection circuit for power compensator |
| CN107596590A (en) * | 2017-10-25 | 2018-01-19 | 奥来救援科技有限公司 | AC/DC electric hydaulic expander |
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Application publication date: 20131106 |