CN2556833Y - Power supply unit with emergency power supply function - Google Patents
Power supply unit with emergency power supply function Download PDFInfo
- Publication number
- CN2556833Y CN2556833Y CN 02239335 CN02239335U CN2556833Y CN 2556833 Y CN2556833 Y CN 2556833Y CN 02239335 CN02239335 CN 02239335 CN 02239335 U CN02239335 U CN 02239335U CN 2556833 Y CN2556833 Y CN 2556833Y
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- circuit
- power supply
- power
- supply unit
- service function
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- Expired - Lifetime
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The utility model relates to a power supplier with emergent power supply function, which mainly comprises a pressure-lowering rectifying circuit that lowers and rectifies a communication city power and sends the communication city power to a voltage regulation circuit to steady the voltage, and a battery is charged, meanwhile, the battery is connected with a system start circuit by a handoff switch, and the system start circuit which is controlled by a micro-processor is used for controlling the power supply source; the output end of the voltage regulation circuit is connected with a direct current/direct current conversion circuit, thus being convenient to supply the direct power directly when the city power is normal, and the battery is connected with the direct current/direct current conversion circuit by a switch circuit and a pressure-boosting circuit, and when the city power is broken, the micro-processor can detect the broken and be communicated with the switch circuit, then after the battery power is boosting by the pressure-boosting circuit, the battery power is sent to the direct current/direct current conversion circuit to converse, and then supply power to the load, thus being convenient to complete the necessary relevant measures before the load end totally powers off.
Description
Invention field
The utility model is the power supply unit that has the emergency service function about a kind of, refers to a kind ofly except that normal power source conversion work especially, can supply the power supply unit of urgent electricity consumption when having a power failure.
Background technology
The discovery of electric power is to facilitate one of fast-developing main key of industry, also is indispensable for the people's livelihood.Therefore the distinguished contribution of electric power is obviously unquestionable, and even to this day, common people probably are difficult to the available situation of the long-term nothing electricity of the imagination, and the importance of electric power is visible one spot thus.And electric power both to be industrial people's livelihood institute can not or lack, its application is very extensive naturally, as distinguishing with regard to form of power, AC power is the electricity consumption with the different load equipment of different high low-voltage supplies, DC power supply then extensively applies on computer, the various small household appliances, as for obtaining of DC power supply, be after making AC power after the over commutation step-down is handled, transfer DC power supply to direct supply, or with battery forms to electric.
For vast household electrical appliances or computer user, the use of power supply unit should be not strange, mainly is to be used for the mains supply of form of communication is converted to direct current power supply to the electricity consumption product.Yet, all power consumption equipments are all frightened in facing a same situation, promptly do not have the interim outage of early warning type, for many power consumption equipments, power breakdown perhaps just quits work, but for many particular devices, electric power does not have the influence that early warning interrupts and never only is to quit work, and it also may cause other sequelae, and is light then be resetting of many functions, heavy then cause the loss of huge data, its influence is not little.For solving the puzzlement that no early warning power breakdown brings, also occurred so-called UPS (UPS) on the market, patent application relevant in the known patent document has: announce No. 150472 " power supply that does not cut off the power supply is supplied with " application for a patent for invention, No. 475312 " device and method that is used for the control power supply supply of battery powered electronic installation " application for a patent for invention of bulletin and announce No. 434924 " non-break power supply " application for a patent for invention or the like.
With present on the market product or the technology contents that provides of aforementioned each application for a patent for invention, supply urgent electricity consumption though can be when not early warning of electric power is interrupted, give user buffer time to finish the preceding necessary operation of outage.But also can find out obviously that by the technology contents that aforementioned each patent application discloses its device construction is very complicated, so on the range of applicable object, also be restricted.Thereby, how to take into account practicality and economy, obviously need to be further reviewed, and seek feasible solution.
Summary of the invention
Therefore, the utility model main purpose provides a kind of built-in charging/storage function and can supply the power supply unit of urgent electricity consumption, and it can utilize simple structure that the function of emergency service is provided, and takes into account practicality and cost is considered.
For reaching aforementioned purpose, the power supply unit that the utility model provides comprises:
One step-down rectifying circuit is made step-down rectifier to the electric main of input;
One voltage stabilizing circuit carries out voltage stabilizing to the DC power supply of rectification step-down;
One storage battery is to be connected to charge with the output of aforementioned voltage stabilizing circuit;
One system start-up circuit is to switch switch by one to be connected with circuit output end of pressure-stabilizing;
Whether whether one microprocessor be to be powered normally by the output detecting civil power of step-down rectifying circuit, and start by the system start-up circuit control system according to this;
One direct current/DC converting circuit is to be connected with the output of aforementioned voltage stabilizing circuit;
One booster circuit, its control end are to be connected with storage battery by a switching circuit, and booster circuit is to boost in order to the DC power supply to storage battery, and the DC power supply after boosting is to deliver to aforesaid DC/DC conversion circuit;
Power supply unit of the present utility model at civil power just often, alternating current promptly charges to storage battery, and also can directly power to load by the DC/DC conversion circuit after buck current circuit, voltage stabilizing circuit are done step-down rectifier and voltage stabilizing and handled; When civil power interrupts, microprocessor will detect by step-down rectifying circuit, and then make the switching circuit conducting, satisfy battery feed after booster circuit boosts, deliver to again after the DC/DC conversion circuit conversion electric,, finish necessary related measure so that before load end is cut off the power supply fully.
The aforementioned power source supply further includes a temperature detection circuit, and it is in order to the temperature of detecting system, and will detect the result and deliver to microprocessor.
The aforementioned power source supply further includes an indicator light circuit, and the light-emitting diode that is connected different colours by two transistor is respectively formed, and wherein whether transistor turns is controlled by microprocessor, in order to show mains-supplied and powered battery state respectively.
Power supply unit of the present utility model not only can provide general direct current power supply function under the normal condition attitude, and in case when electric main taking place interrupting, built-in electric power storage/the discharging function of power supply unit then, the urgent electricity consumption of offered load end immediately, for the equipment that certain shutdown procedures is arranged before many outages, the utility model can make it before cutting off the power supply fully, finishes necessary shutdown programm, reduces the puzzlement and the loss of outage.Though and the utility model can provide aforementioned functional, therefore do not become complicated textural, so taken into account practicality and economy, than existing power supply unit, applicable object is wider.
Description of drawings
For further understanding aforementioned purpose and architectural feature of the present utility model, existing being elaborated in conjunction with the accompanying drawings as the back:
Fig. 1 is a circuit diagram of the present utility model.
Embodiment
See also shown in Figure 1ly, power supply unit of the present utility model includes:
One step-down rectifying circuit (10) is made step-down rectifier to the electric main of input, mainly is made up of a transformer (11) and a bridge rectifier (12);
One voltage stabilizing circuit (20) mainly is made of rectifier diode D1, D2 and a pressurizer U1, and its input is to be connected in a wherein low voltage output (being the 9V voltage output end in the present embodiment) of aforementioned transformer (11), and it is carried out rectifying and voltage-stabilizing;
One storage battery (21) is to be connected with the output of aforementioned voltage stabilizing circuit (20), to charge;
One system start-up circuit (30) is to switch switch (31) by one to be connected with voltage stabilizing circuit (20) output, and the automatic start end AUTO of one is connected to the pressurizer U1 output of voltage stabilizing circuit (20), so that whether the detecting civil power recovers after power failure; This diverter switch (31) is to be controlled with manual mode by the user, and when diverter switch (31) was connected, system start-up circuit (30) root was given to start according to power supply situation;
One microprocessor (40), its civil power sense terminal LINE are the output voltages that is taken out transformer (11) by voltage stabilizing circuit (20) input, with detecting civil power normal power supply whether; Whether the control end UPSON of its system, BATV are connected to system start-up circuit (30), to start by this system start-up circuit (30) control system when mains-supplied and the powered battery respectively.
One direct current/DC converting circuit (50), form by a pressurizer U4 and a voltage selecting circuit (51), wherein voltage selecting circuit (51) is made up of a thumb-acting switch (52) and several diodes, this voltage selecting circuit (51) is the reference edge that is connected in pressurizer U4, in order to switch the output voltage of selecting pressurizer U4; Be provided with a transistor Q11 between the reference edge of aforementioned pressurizer U4 and earth terminal, this transistor Q11 is whether the pin OFF by microprocessor (40) controls its conducting, when transistor Q11 conducting, pressurizer U4 reference edge ground connection is not so DC/DC conversion circuit (50) is worked.
One booster circuit (60), its control end ON is connected with voltage (6V) output of storage battery (21) by a switching circuit (61), wherein, and the output of booster circuit (60) is the input supply terminal (16V) that connects DC/DC conversion circuit (50), it is in order to boost to the DC power supply of storage battery (21) output, and the DC power supply after boosting is to deliver to aforesaid DC/DC conversion circuit (50); Switching circuit (61) is made up of first/transistor seconds Q6/Q7, wherein the first transistor Q6 is whether the 6V power supply of control storage battery (21) delivers to the control end ON of booster circuit (60), transistor seconds Q7 is subjected to microprocessor (40) control, whether to control the first transistor Q6 conducting.
One temperature detection circuit (70) mainly is made up of a thermistor NCT1, resistance, electric capacity etc., and it is in order to the temperature of detecting system, and will detect the temperature detecting pin TEMP that the result delivers to microprocessor (40).
One indicator light circuit (80), the LED 1, the LED2 that are connected different colours by two transistor Q8, Q9 are respectively formed (in the present embodiment, it is red and green that LED 1, LED2 are respectively), wherein whether transistor Q8, Q9 conducting be that corresponding pin RED, GREEN by microprocessor (40) controlled, in order to show mains-supplied and powered battery state respectively.
Can find out that by above-mentioned explanation detailed circuit of the present utility model is constructed and the functional characteristic of each circuit, detailed as described below as for its working method:
When civil power just often, alternating current is done after step-down rectifier and the voltage stabilizing processing storage battery (21) to be charged through buck current circuit (10), voltage stabilizing circuit (20), microprocessor this moment (40) detecting mains-supplied is normal, be that output signal is by system start-up circuit (30) start-up system, and under this state, the power supply of voltage stabilizing circuit (20) output is also directly powered by DC/DC conversion circuit (50) and is given load.
When civil power interrupts, microprocessor (40) will detect by step-down rectifying circuit (10), even system start-up circuit (30) is no longer worked, other makes switching circuit (61) conducting, satisfying storage battery (21) power supply will be after boosts booster circuit (60), deliver to DC/DC conversion circuit (50) conversion back again to electric,, finish necessary related measure to make things convenient for the user before load equipment cuts off the power supply fully.
Claims (10)
1. the power supply unit with emergency service function is characterized in that, includes:
One step-down rectifying circuit is made step-down rectifier to the electric main of input;
One voltage stabilizing circuit carries out voltage stabilizing to the DC power supply of rectification step-down;
One storage battery is to be connected with the output of aforementioned voltage stabilizing circuit, to charge;
One system start-up circuit is to switch switch by one to be connected with circuit output end of pressure-stabilizing;
Whether whether one microprocessor be to be powered normally by the output detecting civil power of step-down rectifying circuit, and start by the system start-up circuit control system in view of the above;
One direct current/DC converting circuit, its input is connected with the output of aforementioned voltage stabilizing circuit, and its output then is a dc power output end;
One booster circuit, its control end are to be connected with storage battery by a switching circuit, and booster circuit is to boost in order to the DC power supply to storage battery again, and the DC power supply after boosting is delivered to aforesaid DC/DC conversion circuit.
2. the power supply unit with emergency service function as claimed in claim 1 is characterized in that, the temperature detecting end of this microprocessor is connected with a temperature detection circuit that is used for the detecting system temperature.
3. the power supply unit with emergency service function as claimed in claim 2 is characterized in that this temperature detection circuit is made up of thermistor, resistance, electric capacity.
4. the power supply unit with emergency service function as claimed in claim 1 is characterized in that, an output of this microprocessor is connected with an indicator light circuit that is used to indicate working state of system.
5. the power supply unit with emergency service function as claimed in claim 4 is characterized in that, this indicator light circuit is made up of the light-emitting diode that two groups of transistors that are controlled by microprocessor connect different colours respectively.
6. the power supply unit with emergency service function as claimed in claim 1 is characterized in that, this step-down rectifying circuit is made up of a transformer and a bridge rectifier.
7. as claim 1 or 6 described power supply units, it is characterized in that this voltage stabilizing circuit is made up of rectifier diode and pressurizer with emergency service function.
8. the power supply unit with emergency service function as claimed in claim 1, it is characterized in that the conducting whether transistor seconds whether this switching circuit is sent into the first transistor of booster circuit by the power supply that is used to control storage battery and be used for the described the first transistor of control under microprocessor control is formed jointly.
9. the power supply unit with emergency service function as claimed in claim 1, it is characterized in that this DC/DC conversion circuit is by a pressurizer and be connected in the reference edge of this pressurizer and form in order to the voltage selecting circuit of output voltage that select to adjust this pressurizer.
10. the power supply unit with emergency service function as claimed in claim 9 is characterized in that, this voltage selecting circuit is made up of a plurality of diodes and a thumb-acting switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02239335 CN2556833Y (en) | 2002-06-18 | 2002-06-18 | Power supply unit with emergency power supply function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02239335 CN2556833Y (en) | 2002-06-18 | 2002-06-18 | Power supply unit with emergency power supply function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2556833Y true CN2556833Y (en) | 2003-06-18 |
Family
ID=33712747
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02239335 Expired - Lifetime CN2556833Y (en) | 2002-06-18 | 2002-06-18 | Power supply unit with emergency power supply function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2556833Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101313446B (en) * | 2006-02-15 | 2012-11-07 | 株式会社理光 | Charging circuit for secondary battery, power supply switching method in charging circuit for secondary battery, and power supply unit |
| CN105281414A (en) * | 2015-11-30 | 2016-01-27 | 朱菡雯 | Alarm clock with calling function |
| CN117293997A (en) * | 2023-11-27 | 2023-12-26 | 深圳创能恒电科技有限公司 | Uninterrupted power supply |
-
2002
- 2002-06-18 CN CN 02239335 patent/CN2556833Y/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101313446B (en) * | 2006-02-15 | 2012-11-07 | 株式会社理光 | Charging circuit for secondary battery, power supply switching method in charging circuit for secondary battery, and power supply unit |
| CN105281414A (en) * | 2015-11-30 | 2016-01-27 | 朱菡雯 | Alarm clock with calling function |
| CN117293997A (en) * | 2023-11-27 | 2023-12-26 | 深圳创能恒电科技有限公司 | Uninterrupted power supply |
| CN117293997B (en) * | 2023-11-27 | 2024-03-01 | 深圳创能恒电科技有限公司 | Uninterrupted power supply |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20120618 Granted publication date: 20030618 |