CN201947046U - Switch power supply with backup battery for power supply - Google Patents
Switch power supply with backup battery for power supply Download PDFInfo
- Publication number
- CN201947046U CN201947046U CN2010206265465U CN201020626546U CN201947046U CN 201947046 U CN201947046 U CN 201947046U CN 2010206265465 U CN2010206265465 U CN 2010206265465U CN 201020626546 U CN201020626546 U CN 201020626546U CN 201947046 U CN201947046 U CN 201947046U
- Authority
- CN
- China
- Prior art keywords
- power supply
- circuit
- voltage
- output
- connects
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Stand-By Power Supply Arrangements (AREA)
- Direct Current Feeding And Distribution (AREA)
Abstract
The utility model relates to a switch power supply with a backup battery for power supply, which is added by a conversion circuit, a voltage-stabilizing output circuit and a battery pack based on an existing switch power supply. The conversion circuit includes a miniature relay and three diodes, the control terminal of the conversion circuit is connected with the output positive terminal of the switch power supply, the input terminal of the conversion circuit is connected with the battery pack, and the output terminal of the conversion circuit is connected with the voltage input terminal of the voltage-stabilizing output circuit by isolating diodes VD6 (voltage detector 6). The voltage-stabilizing output circuit is formed by a linear voltage regulator integrated circuit, the input terminal of the voltage-stabilizing output circuit is respectively connected with the output terminal of the conversion circuit and the output positive terminal of the switch power supply, and the output terminal of the voltage-stabilizing output circuit serves as the output positive terminal of the voltage-stabilized source. The battery pack is formed by connecting four 3.6 V batteries in series and is connected with a battery protection circuit. The switch power supply with the backup battery for power supply has the advantages of providing adjustable and stable backup working power source for electronic instruments used in special occasions, and therefore when power frequency electric supply is suddenly cut off, the electronic instruments can carry on working for some time to save data, to be regularly turned off or to timely switch into the backup power supply.
Description
Technical field
The utility model relates to the electric equipment products technical field, is a kind of Switching Power Supply, and concrete is a kind of backup battery powered switch power supply that has.
Background technology
The development of technology makes the use of electrical equipment more and more general, and for electrical equipment, stable power is the assurance of normal operation.Voltage instability or power failure suddenly all can make the use of electrical equipment be affected, to life-span of electric equipment products also be very disadvantageous.Because promotion cuts down the consumption of energy and environmental protection, and various electronic instruments or electronic installation all adopt the components and parts of low-power consumption more and more, mostly use switch mode power to adapt to the unsettled sometimes situation of power frequency supply input voltage again simultaneously now, increase work efficiency.Yet at some special occasions, in case the power frequency supply dead electricity can cause corresponding electronic instrument or electronic installation to quit work suddenly under offhand situation, this causes the generation of accident sometimes to producing significant impact to electronic instrument or the bigger work of electronic installation dependence.Therefore, can obtain certain safe conversion for guaranteeing under the situation of unexpected dead electricity electronic instrument or electronic installation, it is very important making people can carry out positive processing.On some electronic instruments power-off protection apparatus has been arranged at present, corresponding product is also in continuous generation.
The utility model content
The purpose of this utility model is, for the situation of contingent unexpected dead electricity provides a kind of backup battery powered switch power supply that has, can under the dead electricity situation electronic instrument or electronic installation can be worked on a period of time for the moment at power frequency supply, the electronic instrument of low-power consumption or electronic installation are worked on longer a period of time; And the operating voltage of while Neng Full foot 1.5V～12V different operating power requirement.
For achieving the above object, the technical scheme taked of the utility model is:
A kind of have a backup battery powered switch power supply, contain mains switch, anti-surge circuit, power-supply filter and switching power circuit, it is characterized in that, also be provided with change-over circuit, voltage-stabilizing output circuit and battery pack, described switch power supply route bridge rectifier, high frequency transformer, microswitch power IC, adjustable accurate shunt regulator, optical coupler constitute; Described change-over circuit comprises 1 miniature relay and 3 diodes, the control end of change-over circuit connects the output plus terminal of Switching Power Supply, the input of change-over circuit connects battery pack, and output connects the voltage input end of voltage-stabilizing output circuit by isolating diode VD6; Voltage-stabilizing output circuit is made of the linear voltage regulator integrated circuit, and its input connects the output of change-over circuit and the output plus terminal of Switching Power Supply by isolating diode VD6, VD7 respectively, and the output of voltage-stabilizing output circuit is made the stabilized voltage power supply output plus terminal; Described battery pack is composed in series and is connected with battery protecting circuit by four joint 3.6V batteries, and its anode connects the common port of relay contact, and its negative terminal connects Switching Power Supply output negative terminal.
Described change-over circuit is by 1 relay K A1 and 3 diode VD5, VD6, VD7 constitutes, wherein, VD6, VD7 is an isolating diode, one end of relay K A1 coil connects between Switching Power Supply output plus terminal and the isolating diode VD7 positive pole, the other end connects the output negative terminal of Switching Power Supply, diode VD5 is connected to the two ends of relay K A1 coil, the contact common port of relay K A1 connects the anode of battery pack, normally opened contact connects the positive pole of isolating diode VD6, the negative pole of isolating diode VD6 be connected with the voltage input end of voltage-stabilizing output circuit again after the negative pole of isolating diode VD7 is connected.
Described voltage-stabilizing output circuit is by linear voltage regulator integrated circuit (IC) 4, C8, R7, RP1 constitutes, wherein, 8 pin of linear voltage regulator integrated circuit (IC) 4 connect the negative pole of isolating diode VD6 and the negative pole of isolating diode VD7,2 pin of linear voltage regulator integrated circuit (IC) 4 connect the voltage stabilizing output plus terminal, 2 pin of capacitor C 8 anodal wiring pressurizer integrated circuit (IC) 4, capacitor C 8 negative poles connect power supply output negative terminal, 2 pin of one termination linear voltage regulator integrated circuit (IC) 4 of resistance R 7, the other end of resistance R 7 is connected with adjustable resistance RP1 one end and adjustable end, be connected to 6 pin of linear voltage regulator integrated circuit (IC) 4, adjustable--------another termination power output negative terminal of-----resistance R P1.
Described battery pack is made of four joint 3.6V lithium battery series connection.
A kind of good effect with backup battery powered switch power supply of the utility model is:
The electronic installation or the electronic instrument that can be some special occasions settings or use provide a stable reserve working power that 1.5V～12V is adjustable, can guarantee under the situation of the unexpected dead electricity of power frequency supply, to make electronic installation or electronic instrument can continue operate as normal a period of time, to make things convenient for the preservation of deal with data, the stand-by power supply of normally closing or in time transfer of electronic installation or electronic instrument.
Description of drawings
Fig. 1 is a kind of circuit diagram with backup battery powered switch power supply of the utility model.
Embodiment
Provide a kind of embodiment of the utility model below in conjunction with accompanying drawing with backup battery powered switch power supply.
The utility model is a kind of to have backup battery powered switch power supply and comprises mains switch, anti-surge circuit, power-supply filter and switching power circuit, and the main difference part of itself and existing Switching Power Supply is: increased change-over circuit, voltage-stabilizing output circuit and lithium battery group.
Bridge rectifier of described switch power supply route, a high frequency transformer, a microswitch power IC, an adjustable accurate shunt regulator, an optical coupler constitute.
Described change-over circuit comprises a miniature relay KA1 and 3 diode VD5, VD6, VD7, and wherein, VD6, VD7 are isolating diode.One end of relay K A1 coil connects between Switching Power Supply output plus terminal and the isolating diode VD7 positive pole, the other end connects Switching Power Supply output negative terminal, diode VD5 is connected to the two ends of relay K A1 coil, the contact common port of relay K A1 connects the anode of battery pack, normally opened contact connects the positive pole of diode VD6, the negative pole of isolating diode VD6 and the voltage input end that connects voltage-stabilizing output circuit after the negative pole of isolating diode VD7 is connected again.
Described voltage-stabilizing output circuit is by linear voltage regulator integrated circuit (IC) 4, C8, R7, RP1 constitutes, wherein, 8 pin of linear voltage regulator integrated circuit (IC) 4 connect the negative pole of diode VD6 and the negative pole of diode VD7,2 pin of linear voltage regulator integrated circuit (IC) 4 connect the voltage stabilizing output plus terminal, 2 pin of capacitor C 8 anodal wiring pressurizer integrated circuit (IC) 4, capacitor C 8 negative poles connect power supply output negative terminal, 2 pin of one termination linear voltage regulator integrated circuit (IC) 4 of resistance R 7, the other end of resistance R 7 is connected with adjustable resistance RP1 one end and adjustable end, be connected to 6 pin of linear voltage regulator integrated circuit (IC) 4, adjustable-------------resistance R P1 other end connects power supply output negative terminal.
Described battery pack is connected and is connect battery protecting circuit by four joint 3.6V lithium batteries and forms, and its anode is succeeded the common port of appliance contact, and its negative terminal connects Switching Power Supply output negative terminal.
When power frequency supply just often, power turn-on switch QK1, light-emitting diode VD1 lights, indication power frequency supply power supply state, Switching Power Supply work, the output voltage of high frequency transformer secondary winding is through the VD4 rectification, after through C4, L2, obtain VD after the C5 filtering, one the tunnel is added to the coil two ends of relay K A1, and relay K A1 coil gets electric, and its normally-closed contact disconnects, the normally opened contact closure is a lithium cell charging, another road leads to isolating diode VD7, and VD7 is the 8 pin voltage input ends that isolating diode is added to linear voltage regulator integrated circuit (IC) 4, and one of 2 pin voltage output ends output by linear voltage regulator integrated circuit (IC) 4 is the required operating voltage of load again.
When the power frequency supply dead electricity, light-emitting diode extinguishes, and to show the power frequency supply dead electricity, Switching Power Supply can not be worked.At this moment, the output of high frequency transformer secondary winding no-voltage, the coil losing electricity of relay K A1, its normally opened contact disconnects, and battery charge finishes.Meanwhile, the normally-closed contact closure, the battery anode is added to 8 pin voltage input ends of linear voltage regulator integrated circuit (IC) 4 by it through isolating diode VD6, one of 2 pin voltage output ends output by linear voltage regulator integrated circuit (IC) 4 is the required operating voltage of load again, and can be used as power frequency supply just often is the power supply of load by Switching Power Supply.It is transformed into when the power frequency supply dead electricity automatically by the backup battery power supply, thereby makes the electronic installation of some special occasions or electronic instrument can continue normally to work under the situation of power frequency supply dead electricity.
Can guarantee no matter be the stabilized voltage power supply output that Switching Power Supply power supply or powered battery can both guarantee 1.5V～12V, guarantee the requirement of various different electronic instruments or electronic installation by the RP1 that regulates voltage-stabilizing output circuit to working power voltage and stability.
Claims (3)
1. one kind has backup battery powered switch power supply, contain mains switch, anti-surge circuit, power-supply filter and switching power circuit, it is characterized in that, also be provided with change-over circuit, voltage-stabilizing output circuit and battery pack, described switch power supply route bridge rectifier, high frequency transformer, microswitch power IC, adjustable accurate shunt regulator, optical coupler constitute; Described change-over circuit comprises 1 miniature relay and 3 diodes, the control end of change-over circuit connects the output plus terminal of Switching Power Supply, the input of change-over circuit connects battery pack, and output connects the voltage input end of voltage-stabilizing output circuit by isolating diode VD6; Voltage-stabilizing output circuit is made of the linear voltage regulator integrated circuit, and its input connects the output of change-over circuit and the output plus terminal of Switching Power Supply by isolating diode VD6, VD7 respectively, and the output of voltage-stabilizing output circuit is made the stabilized voltage power supply output plus terminal; Described battery pack is composed in series and is connected with battery protecting circuit by four joint 3.6V batteries, and its anode connects the common port of relay contact, and its negative terminal connects Switching Power Supply output negative terminal.
2. a kind of backup battery powered switch power supply that has according to claim 1, it is characterized in that, described change-over circuit is by 1 relay K A1 and 3 diode VD5, VD6, VD7 constitutes, wherein, VD6, VD7 is an isolating diode, one end of relay K A1 coil connects between Switching Power Supply output plus terminal and the isolating diode VD7 positive pole, the other end connects the output negative terminal of Switching Power Supply, diode VD5 is connected to the two ends of relay K A1 coil, the contact common port of relay K A1 connects the anode of battery pack, normally opened contact connects the positive pole of isolating diode VD6, the negative pole of isolating diode VD6 be connected with the voltage input end of voltage-stabilizing output circuit again after the negative pole of isolating diode VD7 is connected.
3. a kind of backup battery powered switch power supply that has according to claim 1, it is characterized in that, described voltage-stabilizing output circuit is by linear voltage regulator integrated circuit (IC) 4, C8, R7, RP1 constitutes, wherein, 8 pin of linear voltage regulator integrated circuit (IC) 4 connect the negative pole of isolating diode VD6 and the negative pole of isolating diode VD7,2 pin of linear voltage regulator integrated circuit (IC) 4 connect the voltage stabilizing output plus terminal, 2 pin of capacitor C 8 anodal wiring pressurizer integrated circuit (IC) 4, capacitor C 8 negative poles connect power supply output negative terminal, 2 pin of one termination linear voltage regulator integrated circuit (IC) 4 of resistance R 7, the other end of resistance R 7 is connected with adjustable resistance RP1 one end and adjustable end, be connected to 6 pin of linear voltage regulator integrated circuit (IC) 4, adjustable--------another termination power output negative terminal of-----resistance R P1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206265465U CN201947046U (en) | 2010-11-26 | 2010-11-26 | Switch power supply with backup battery for power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206265465U CN201947046U (en) | 2010-11-26 | 2010-11-26 | Switch power supply with backup battery for power supply |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201947046U true CN201947046U (en) | 2011-08-24 |
Family
ID=44474382
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206265465U Expired - Fee Related CN201947046U (en) | 2010-11-26 | 2010-11-26 | Switch power supply with backup battery for power supply |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201947046U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102570592A (en) * | 2012-01-16 | 2012-07-11 | 北京矿冶研究总院 | Uninterrupted direct current power supply method and device |
| CN102570838A (en) * | 2012-03-06 | 2012-07-11 | 厦门巨益科技有限公司 | Bilaterally and continuously adjustable regulated power supply |
| CN103095144A (en) * | 2013-01-07 | 2013-05-08 | 苏州佳世达光电有限公司 | Power supply circuit provided with voltage acceleration compensation |
| CN105279823A (en) * | 2014-07-24 | 2016-01-27 | 张娜 | Multifunctional anti-theft door |
| CN105491711A (en) * | 2015-12-21 | 2016-04-13 | 佛山市南海区联合广东新光源产业创新中心 | Drive circuit for LED with adjustable light source |
-
2010
- 2010-11-26 CN CN2010206265465U patent/CN201947046U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102570592A (en) * | 2012-01-16 | 2012-07-11 | 北京矿冶研究总院 | Uninterrupted direct current power supply method and device |
| CN102570838A (en) * | 2012-03-06 | 2012-07-11 | 厦门巨益科技有限公司 | Bilaterally and continuously adjustable regulated power supply |
| CN103095144A (en) * | 2013-01-07 | 2013-05-08 | 苏州佳世达光电有限公司 | Power supply circuit provided with voltage acceleration compensation |
| CN103095144B (en) * | 2013-01-07 | 2015-04-29 | 苏州佳世达光电有限公司 | Power supply circuit provided with voltage acceleration compensation |
| CN105279823A (en) * | 2014-07-24 | 2016-01-27 | 张娜 | Multifunctional anti-theft door |
| CN105491711A (en) * | 2015-12-21 | 2016-04-13 | 佛山市南海区联合广东新光源产业创新中心 | Drive circuit for LED with adjustable light source |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100588077C (en) | Solar and commercial power complementary uninterruptable power system | |
| CN102751754B (en) | Solar energy and CT (current) mixing type energy storage and power supply device based on power control | |
| CN201947046U (en) | Switch power supply with backup battery for power supply | |
| CN102810901A (en) | Communication power supply system based on fuel cell | |
| CN204349496U (en) | Portable multi-voltage output mobile power supply | |
| CN106849322A (en) | A kind of standby energy-storage system of intelligent domestic | |
| CN103236733A (en) | Electric bicycle charging device with functions of delaying time and powering off | |
| CN205051931U (en) | LED's drive power supply | |
| CN107863818B (en) | Intelligent integrated uninterrupted multi-path direct current output switching power supply | |
| CN205051933U (en) | LED's drive power supply | |
| CN204597597U (en) | A kind of domestic solar electric power system | |
| CN202872443U (en) | Fuel-cell-based communication power supply | |
| CN201403057Y (en) | Portable solar energy mobile power supply | |
| CN103401297A (en) | Power utilization energy-saving device with uninterruptible power and low cost | |
| CN201328017Y (en) | Power supply device for permanent-magnetic mechanism circuit breaker | |
| CN203233223U (en) | Electric bicycle charging device with function of time-delay power-off | |
| CN106100105A (en) | A kind of low pressure small area analysis Uninterruptible Power Module | |
| CN201635925U (en) | Wind-solar hybrid control system | |
| CN205945212U (en) | Low pressure undercurrent uninterrupted power source module | |
| CN203537053U (en) | LED illuminating lamp emergency power supply | |
| CN209571874U (en) | A kind of power-supply system of anti-surge voltage impact | |
| CN203982509U (en) | Intelligent sound acoustic-optic alarm | |
| CN203596647U (en) | Power supply unit of ATM | |
| CN203491773U (en) | Emergency power supply device with independent safety voltage | |
| CN206004399U (en) | A kind of uninterrupted voltage-stabilized power supply circuit of DC DC |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110824 Termination date: 20121126 |