CN102832689A - Emergency power supply capable of indicating undervoltage of storage battery - Google Patents
Emergency power supply capable of indicating undervoltage of storage battery Download PDFInfo
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- CN102832689A CN102832689A CN2012103554946A CN201210355494A CN102832689A CN 102832689 A CN102832689 A CN 102832689A CN 2012103554946 A CN2012103554946 A CN 2012103554946A CN 201210355494 A CN201210355494 A CN 201210355494A CN 102832689 A CN102832689 A CN 102832689A
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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
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
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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
- Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
- Y04S20/20—End-user application control systems
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention provides an emergency power supply capable of indicating undervoltage of a storage battery. The emergency power supply comprises a 12V direct current power supply, a multivibrator and frequency adjustment circuit, a push-pull power amplification circuit, a booster circuit, a square wave voltage shaping circuit, a voltage detection circuit and an undervoltage indicating circuit, and is characterized in that the type of an astable or monostable multivibrator IC1 in the multivibrator and frequency adjustment circuit is CD4047. A test shows that if a power supply line fails suddenly, a temporary power supply inversion mode can be used. The emergency power supply capable of indicating undervoltage of the storage battery is suitable for low-power electric appliances such as a fluorescent lamp, an energy-saving lamp, a notebook computer and an electronic device, can meet the requirement on emergency lighting for short-time power failure of the power supply line and is also suitable for emergency lighting or fire protection emergency power supplies in various public places; a 12V and 10AH maintenance-free storage battery is used for supplying power; and the emergency power supply can work for more than 1.2 hours under the condition of full charge.
Description
Technical field
The invention belongs to electronic technology and emergency power supply technical field, is to owe the emergency power supply that end finger shows about a kind of storage battery.
Background technology
Emergency power supply is the stand-by power supply that is totally independent of outside the utility grid.Emergency power supply commonly used mainly contains three kinds: be independent of the generating set of mains supply, like diesel engine generator; Special supply line outside the circuit commonly used is commonly called as double circuit power supply; With the inverter of storage battery as the making of application of power inversion transformation technique.Practice shows: supply line has a power failure suddenly, utilizes the interim power supply of inverting more real feasible.
Storage battery of the present invention owes the emergency power supply that end finger shows and is applicable to low-power electrical devices such as fluorescent lamp, electricity-saving lamp, notebook computer, electronic instrument; Can satisfy the emergency lighting after supply line's short time has a power failure, also be applicable to the emergency lighting or the fire-fighting emergency power supply of various small-sized public places; Select 12V, the power supply of 10AH maintenance free cell for use, this emergency power supply fully loaded operating time was greater than 1.2 hours.
Below specify storage battery of the present invention and owe emergency power supply that end finger shows related relevant technologies content in implementation process.
Summary of the invention
Goal of the invention and beneficial effect: emergency power supply is the stand-by power supply that is totally independent of outside the utility grid.Emergency power supply commonly used mainly contains three kinds: be independent of the generating set of mains supply, like diesel engine generator; Special supply line outside the circuit commonly used is commonly called as double circuit power supply; With the inverter of storage battery as the making of application of power inversion transformation technique.Practice shows: supply line has a power failure suddenly, utilizes the interim power supply of inverting more real feasible.Storage battery of the present invention owes the emergency power supply that end finger shows and is applicable to low-power electrical devices such as fluorescent lamp, electricity-saving lamp, notebook computer, electronic instrument; Can satisfy the emergency lighting after supply line's short time has a power failure, also be applicable to the emergency lighting or the fire-fighting emergency power supply of various small-sized public places; Select 12V, the power supply of 10AH maintenance free cell for use, this emergency power supply fully loaded operating time was greater than 1.2 hours.
The circuit working principle: it is with storage battery 12V direct voltage inversion becoming 220V alternating voltage that storage battery owes the emergency power supply that end finger shows.Accompanying drawing 1 left part is the battery tension indicating circuit, constitutes battery tension by NPN transistor VT1 and related elements and detects and under-voltage indicating circuit.When charge in batteries voltage surpassed 10.5V, LED began luminous, and the electric weight of expression storage battery can continue to use; When battery tension is reduced to when being lower than 10.5V, LED extinguishes, and shows that accumulator electric-quantity put, and needs charge to it immediately.
Accompanying drawing 1 right portions is the dc inversion circuit, and the dc inversion circuit is by no stable state/one-shot multivibrator IC1 (CD4047) and N channel enhancement FET and related elements formation multivibrator circuit, and the circuit oscillation frequency is 50Hz.The Q output of no stable state/one-shot multivibrator IC1 and the direct driving N channel enhancement of Q (-) output FET VT2～VT3 connect into push-pull amplifier circuit with them, by step-up transformer T output 220V alternating voltage; Two termination capacitor C 2 of step-up transformer T winding L 3, the shaping that is used to export square-wave voltage.
Technical scheme: storage battery owes the emergency power supply that end finger shows; It comprises 12V DC power supply, multivibrator and frequency adjustment circuit, push-pull power amplifier circuit, booster circuit and square-wave voltage shaping circuit; Voltage detecting circuit and under-voltage indicating circuit is characterized in that:
Multivibrator and frequency adjustment circuit: form by no stable state/one-shot multivibrator IC1, capacitor C 1 and potentiometer RP2; The model that no stable state/one-shot multivibrator IC1 selects for use is CD4047; The 1st pin of no stable state/one-shot multivibrator IC1 connects the 3rd pin of no stable state/one-shot multivibrator IC1 and an end and the movable end thereof of potentiometer RP2 through capacitor C 1; No stable state/the 2nd pin of one-shot multivibrator IC1 connects the other end of potentiometer RP2; The anodal VCC of the 4th pin of no stable state/one-shot multivibrator IC1, the 5th pin, the 6th pin and the 14th pin connection circuit, the 7th pin of no stable state/one-shot multivibrator IC1, the 8th pin, the 9th pin and the 12nd pin connection circuit ground GND;
Push-pull power amplifier circuit: the 10th pin of no stable state/one-shot multivibrator IC1 connects the grid of N channel enhancement FET VT3 through resistance R 3; The drain electrode of N channel enhancement FET VT2 connects the end of the same name of step-up transformer T winding L 1; The anodal VCC of the termination circuit of the same name of the different name end of step-up transformer T winding L 1 and the winding L 2 of step-up transformer T; The 11st pin of no stable state/one-shot multivibrator IC1 connects the grid of N channel enhancement FET VT3 through resistance R 4; The drain electrode of N channel enhancement FET VT3 connects the different name end of step-up transformer T winding L 2, the source electrode connection circuit ground GND of the source electrode of N channel enhancement FET VT2 and N channel enhancement FET VT3;
Booster circuit and square-wave voltage shaping circuit: winding L 3, capacitor C 2 and 220V supply socket CZ by step-up transformer T form, and the two ends of step-up transformer T winding L 3 are connected on the two ends of capacitor C 2 and the two ends of 220V supply socket CZ respectively.
Voltage detecting circuit and under-voltage indicating circuit: form by linear potentiometer RP1, resistance R 1, voltage stabilizing didoe DW, NPN transistor VT1 and LED, resistance R 2; The end of linear potentiometer RP1 is through the anodal VCC of resistance R 1 connection circuit; The negative pole of the activity termination voltage stabilizing didoe DW of linear potentiometer RP1; The other end connection circuit ground GND of linear potentiometer RP1, the base stage of NPN transistor VT1 connects the positive pole of voltage stabilizing didoe DW, and the collector electrode of NPN transistor VT1 is through the negative pole of resistance R 2 sending and receiving optical diode LED; The anodal VCC of the anodal connection circuit of LED, the emitter connection circuit ground GND of NPN transistor VT1.
The anodal VCC of 12V dc power anode connection circuit, the negative pole of 12V DC power supply links to each other with circuit ground GND.
Description of drawings
Accompanying drawing 1 is that the present invention provides a storage battery to owe the embodiment circuit working schematic diagram of the emergency power supply that end finger shows; The pore that identifies on the step-up transformer T winding in the accompanying drawing 1 is represented the end of the same name of winding.
Embodiment
Owe the circuit working schematic diagram and the description of drawings of the emergency power supply that end finger shows according to storage battery shown in the accompanying drawing 1; And according to the annexation between the components and parts in the said circuit of summary of the invention, and the components and parts technical parameter described in the execution mode requires to implement to realize the present invention.
The selection of components and parts and technical parameter thereof
IC1 is no stable state/one-shot multivibrator, and the model of selecting for use is CD4047;
VT1 is a NPN transistor, and the model of selecting for use is 2SC9013;
VT2～VT3 is a N channel enhancement FET, and the model of selecting for use is IRFZ44;
DW is a voltage stabilizing didoe, and technical parameter is 9V, 0.5W;
LED is a light-emitting diode, selects ￠ 5 red light emitting diodes for use;
Resistance is selected the metalfilmresistor of 1/4W for use, and the resistance of resistance R 1 is 10k Ω; The resistance of resistance R 2 is 1.5k Ω; The resistance of resistance R 3 is 100 Ω; The resistance of resistance R 4 is 100 Ω;
RP1 is a linear potentiometer, and its resistance is 4.7k Ω; RP2 is a potentiometer, and its resistance is 22k Ω;
C1 is an electric capacity of the dacron, and capacity is 0.22 μ F/40V; C2 is an electric capacity of the dacron, and capacity is 0.1 μ F/400V;
The 12V DC current source is selected 12V, 10AH maintenance free cell for use;
CZ is the 220V supply socket, and technical parameter is 3A/250V.
Circuit production main points and circuit debugging
The making of step-up transformer T: the magnetic core of step-up transformer T is selected EI type ferrite magnetic core or ring type magnetic core for use, the cardboard of winding frame available thickness 0.8mm, and winding L 1, winding L 2 are all selected ￠ 0.8mm enamelled wire for use, and the coiling number of turns is 45 circles; Winding L 3 is selected ￠ 0.45mm enamelled wire for use, and the coiling number of turns is 700 circles; Note the sign of winding L 1, winding L 2 ends of the same name; Require elementary winding and boost to want the liner insulating material between the winding;
N channel enhancement FET VT2～VT3 is a high-power components, must install radiator additional during use;
As long as select for use components and parts good, the components and parts welded and installed is errorless, in 220V supply socket CZ, connects the load of 50～80W, and circuitry can be heard squeak after connecting the 12V DC power supply, and this shows multivibrator circuit starting of oscillation; If circuit do not have starting of oscillation, can be with the two ends reversal connection examination of winding L 1 or winding L 2;
Potentiometer RP2 is used to adjust the frequency of oscillation of circuit, and the frequency of oscillation that suitably improves multivibrator circuit helps improving the conversion efficiency of emergency power supply, but the circuit oscillation frequency upon request≤55Hz, otherwise might have influence on the normal use of some electrical appliance;
The present invention is when output is unloaded, and its output voltage should be higher than 250V;
The 220V alternating current of emergency power supply output can be supplied power to the following electrical appliance of power 80W temporarily.
Claims (2)
1. a storage battery owes the emergency power supply that end finger shows; It comprises 12V DC power supply, multivibrator and frequency adjustment circuit, push-pull power amplifier circuit, booster circuit and square-wave voltage shaping circuit; Voltage detecting circuit and under-voltage indicating circuit is characterized in that:
Described multivibrator and frequency adjustment circuit are made up of no stable state/one-shot multivibrator IC1, capacitor C 1 and potentiometer RP2; The model that no stable state/one-shot multivibrator IC1 selects for use is CD4047; The 1st pin of no stable state/one-shot multivibrator IC1 connects the 3rd pin of no stable state/one-shot multivibrator IC1 and an end and the movable end thereof of potentiometer RP2 through capacitor C 1; No stable state/the 2nd pin of one-shot multivibrator IC1 connects the other end of potentiometer RP2; The anodal VCC of the 4th pin of no stable state/one-shot multivibrator IC1, the 5th pin, the 6th pin and the 14th pin connection circuit, the 7th pin of no stable state/one-shot multivibrator IC1, the 8th pin, the 9th pin and the 12nd pin connection circuit ground GND;
The 10th pin that does not have stable state/one-shot multivibrator IC1 in the described push-pull power amplifier circuit connects the grid of N channel enhancement FET VT3 through resistance R 3; The drain electrode of N channel enhancement FET VT2 connects the end of the same name of step-up transformer T winding L 1; The anodal VCC of the termination circuit of the same name of the different name end of step-up transformer T winding L 1 and the winding L 2 of step-up transformer T; The 11st pin of no stable state/one-shot multivibrator IC1 connects the grid of N channel enhancement FET VT3 through resistance R 4; The drain electrode of N channel enhancement FET VT3 connects the different name end of step-up transformer T winding L 2, the source electrode connection circuit ground GND of the source electrode of N channel enhancement FET VT2 and N channel enhancement FET VT3;
Described booster circuit and square-wave voltage shaping circuit are made up of winding L 3, capacitor C 2 and the 220V supply socket CZ of step-up transformer T, and the two ends of step-up transformer T winding L 3 are connected on the two ends of capacitor C 2 and the two ends of 220V supply socket CZ respectively;
Described voltage detecting circuit and under-voltage indicating circuit are made up of linear potentiometer RP1, resistance R 1, voltage stabilizing didoe DW, NPN transistor VT1 and LED, resistance R 2; The end of linear potentiometer RP1 is through the anodal VCC of resistance R 1 connection circuit; The negative pole of the activity termination voltage stabilizing didoe DW of linear potentiometer RP1; The other end connection circuit ground GND of linear potentiometer RP1, the base stage of NPN transistor VT1 connects the positive pole of voltage stabilizing didoe DW, and the collector electrode of NPN transistor VT1 is through the negative pole of resistance R 2 sending and receiving optical diode LED; The anodal VCC of the anodal connection circuit of LED, the emitter connection circuit ground GND of NPN transistor VT1.
2. storage battery according to claim 1 owes the emergency power supply that end finger shows, it is characterized in that: the anodal VCC of the anodal connection circuit of 12V DC power supply, the negative pole of 12V DC power supply links to each other with circuit ground GND.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103554946A CN102832689A (en) | 2012-09-20 | 2012-09-20 | Emergency power supply capable of indicating undervoltage of storage battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103554946A CN102832689A (en) | 2012-09-20 | 2012-09-20 | Emergency power supply capable of indicating undervoltage of storage battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102832689A true CN102832689A (en) | 2012-12-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012103554946A Withdrawn CN102832689A (en) | 2012-09-20 | 2012-09-20 | Emergency power supply capable of indicating undervoltage of storage battery |
Country Status (1)
| Country | Link |
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| CN (1) | CN102832689A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105353204A (en) * | 2015-12-10 | 2016-02-24 | 成都宏凯瑞科技有限公司 | High-precision multifunctional power tester based on voltage comparison circuit |
| CN105353202A (en) * | 2015-12-10 | 2016-02-24 | 成都宏凯瑞科技有限公司 | Wireless power tester based on frequency stabilizing circuit |
| CN105425027A (en) * | 2015-12-10 | 2016-03-23 | 成都宏凯瑞科技有限公司 | Multifunctional power tester |
| CN105510701A (en) * | 2015-12-10 | 2016-04-20 | 成都宏凯瑞科技有限公司 | Bandpass filtering type multifunctional power tester based on voltage comparison circuit |
| CN105510699A (en) * | 2015-12-10 | 2016-04-20 | 成都宏凯瑞科技有限公司 | Multifunctional power tester based on high-pass filter circuit |
| CN105572467A (en) * | 2015-12-10 | 2016-05-11 | 成都宏凯瑞科技有限公司 | Wireless power tester based on wave shaping circuit |
| CN105588977A (en) * | 2015-12-10 | 2016-05-18 | 成都宏凯瑞科技有限公司 | Shaping circuit-based high-accuracy wireless power tester |
-
2012
- 2012-09-20 CN CN2012103554946A patent/CN102832689A/en not_active Withdrawn
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105353204A (en) * | 2015-12-10 | 2016-02-24 | 成都宏凯瑞科技有限公司 | High-precision multifunctional power tester based on voltage comparison circuit |
| CN105353202A (en) * | 2015-12-10 | 2016-02-24 | 成都宏凯瑞科技有限公司 | Wireless power tester based on frequency stabilizing circuit |
| CN105425027A (en) * | 2015-12-10 | 2016-03-23 | 成都宏凯瑞科技有限公司 | Multifunctional power tester |
| CN105510701A (en) * | 2015-12-10 | 2016-04-20 | 成都宏凯瑞科技有限公司 | Bandpass filtering type multifunctional power tester based on voltage comparison circuit |
| CN105510699A (en) * | 2015-12-10 | 2016-04-20 | 成都宏凯瑞科技有限公司 | Multifunctional power tester based on high-pass filter circuit |
| CN105572467A (en) * | 2015-12-10 | 2016-05-11 | 成都宏凯瑞科技有限公司 | Wireless power tester based on wave shaping circuit |
| CN105588977A (en) * | 2015-12-10 | 2016-05-18 | 成都宏凯瑞科技有限公司 | Shaping circuit-based high-accuracy wireless power tester |
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Application publication date: 20121219 |