CN100525006C - Movable power supply with AC and solar charging functions - Google Patents
Movable power supply with AC and solar charging functions Download PDFInfo
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- CN100525006C CN100525006C CNB2007100422963A CN200710042296A CN100525006C CN 100525006 C CN100525006 C CN 100525006C CN B2007100422963 A CNB2007100422963 A CN B2007100422963A CN 200710042296 A CN200710042296 A CN 200710042296A CN 100525006 C CN100525006 C CN 100525006C
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Abstract
The invention comprises: a silicon photocell plate, a case cap, an interface circuit board, a built-in lithium cell and a cover plate of battery compartment. Said interface circuit board comprises: an AC input interface unit used for completing the connection to the AC contact socket; a low-pass filter used for completing the rectification and low-pass filter of AC; a single-ended fly-back PWM unit used for completing the modulation of low-voltage DC; a silicon photo cell plate interface unit used for completing the connection to the silicon photo cell; a voltage-boosting control unit used for boosting the voltage of low-voltage DC ; an indicator used for indicating the state of state of built-in lithium cell; a USB output interface used for connection to the charging circuit of external electrical device.
Description
Technical field
The present invention relates to a kind of device of technical field of electricity, specifically, is a kind of portable portable power supplies that possesses alternating current charging and solar recharging.
Background technology
Along with the continuous expansion of modern industry, the situation of power shortage is also very severe, and traditional fuel energy reduces day by day, and the harm that environment is caused becomes increasingly conspicuous, and the whole world also has 2,000,000,000 people to can not get normal energy supply simultaneously.Abundant solar radiant energy is an important energy, is the energy inexhaustible, nexhaustible, pollution-free, cheap, that the mankind can freely utilize.Solar energy arrives the energy on ground each second up to 800,000 kilowatts, if the solar energy of earth surface 0.1% is transferred to electric energy, number turnover 5%, annual energy output can reach 5.6 * 1012 kilowatt-hours, is equivalent to 40 times of present energy consumption in the world.People's life becomes increasingly abundant, work rhythm is more and more faster, probably occur being similar to the situation that mobile phone does not have electricity or converses and cut off the power supply among people's work, the journey at any time midway, and this moment, a lot of things must solve by mobile phone, this just needs stand-by power supply to finish whenever and wherever possible.At present, charger on the market is various in style, and independent alternating current charging device is arranged, and independent solar charger is arranged.The alternating current charging device voltage stabilizing that has is simple, poor reliability, volume are big again, is away from home, and is not easy to carry, and almost becomes refuse under no alternating current situation; And the solar charger that has can accomplish that volume is little, but a little less than the power supply capacity, particularly in the date of continuous no sunlight, can't realize charge function.
Find through literature search prior art, Chinese patent application number is: 200620069449.4, name is called: protable power unit, this patent readme is: " comprise solar charging panel, charging box, power output terminal, control circuit, housing; also comprise lithium battery, charge control module, charging indicator light, buzzer, transformation Voltage stabilizing module, battery charge box, charger, mobile phone bag, accessory bag, braces or handle; housing is arranged to inside and outside two-layer, this inside and outside layer links into an integrated entity; Solar charging panel is positioned at the top of this device, is arranged on the inboard of housing and also can opens, and lithium battery is exported the direct current of different voltages after the transformation voltage stabilizing ... ".But the volume of this device is relatively big, and voltage stabilizing is simple, poor reliability.
Summary of the invention
The present invention is directed to the deficiencies in the prior art, a kind of portable portable power supplies that possesses alternating current charging and solar recharging is provided, make it solve above-mentioned deficiency, this power supply can bear the withstand voltage experiment of 1500V, its leakage current is less than 10mA, size 119 * 71 * 17mm, and weight is less than 150g.
The present invention is achieved by the following technical solutions, the present invention includes: silicon photocell plate, cap, Line Card, housing, built-in lithium battery and battery case cover plate.Annexation is: the silicon photocell plate embeds cap, and silicon photocell plate, built-in lithium battery all are connected with Line Card.Line Card is fixed on enclosure interior.Be provided with the box chamber that built-in lithium battery is installed in the housing, be used to place built-in lithium battery, and seal up for safekeeping by the battery case cover plate of activity.
Described Line Card comprises: exchange input interface unit, low-pass filtering rectification unit, single-ended flyback pwm unit, indicating member, silicon photocell plate interface unit, built-in lithium battery interface unit, control unit and USB output interface unit boost.Exchange input interface unit and finish and the docking of AC outlet, its input docks with AC outlet, and its output is connected with low-pass filtering rectification unit input; The low-pass filtering rectification unit is finished AC rectification and low-pass filtering, and its output is connected with single-ended flyback arteries and veins money modulating unit input; Single-ended flyback arteries and veins money modulating unit is finished the modulation of low-voltage direct, and its output is connected with the built-in lithium battery interface unit; Silicon photocell plate interface unit is finished and the docking of silicon photocell plate, and its input is connected with the silicon photocell plate, and its output is connected with built-in lithium battery interface unit input; Built-in lithium battery interface unit input is connected with the control unit input that boosts, and the control unit that boosts is finished the boosting inverter of low-voltage direct, and its output is connected with USB output interface unit; Indicating member is finished the state indication of built-in lithium battery in the alternating current charging process, red light represents that built-in lithium battery charges, green light represents that built-in lithium battery is full of, and its input is connected with the single-ended flyback pwm unit, and its output is led status and shows; Outside electrical appliance charging path is finished in USB output interface unit, and its input is connected with the control unit that boosts, and its output is connected with standard USB patchcord.
Described interchange input interface unit comprises rotary connector support, contact spring, compression spring and plug pressing plate.The rotary connector support embeds in the rotary connector bracket groove corresponding in housing, and well contacts with contact spring; The plug pressing plate that the compression spring is housed is pressed on rotary connector bracket groove top and is fixed in the housing, finishes the path that alternating current is incorporated into Line Card.
Described low-pass filtering rectification unit comprises fusing resistor F2, differential mode capacitor C6, common mode inductance T4, rectifier bridge (being made up of diode D1, D3, D4 and D6), high-voltage filtering capacitor C12.The end of fusing resistor F2 connects alternating current one end, and the other end connects 3 pin of capacitor C 6 and common mode inductance T4, and the other end of differential mode capacitor C6 connects 1 pin of the alternating current other end and common mode inductance T4.4 pin that are connected common mode inductance T4 after the negative electrode of the anode of diode D1 and diode D3 links to each other, the anode of diode D4 is connected 3 pin of T4 with the continuous back of the negative electrode of D6, the positive pole that is connected capacitor C 12 after the negative electrode of the negative electrode of diode D1 and diode D4 links to each other, the continuous back of the anode of the anode of diode D3 and diode D6 is connected the negative pole of C12.
Described single-ended flyback pwm unit comprises the winding clamp circuit one time, a winding ring suppresses circuit, single-chip switching power supply chip U2, capacitor C 9, safe capacitor C 13, inverse-excitation type transformer T3, secondary winding rectifier diode D2, secondary winding filter capacitor C3, C4 and C5, filter inductance L1, current-limiting resistance R4 and R6, photoelectricity coupling chip U1, output filter capacitor C7 and C8, output voltage sample resistance R5 and R9, accurate pressurizer Q2, building-out capacitor C11 and current control circuit; Wherein, a winding clamp circuit is by resistance R 2, capacitor C 2 and diode D5 form, a winding ring suppresses circuit and is made up of capacitor C 1 and resistance R 3, current control circuit is by triode Q1, resistance R 7, R8, R10, R11 and capacitor C 10 are formed, connected mode is: capacitor C 9 anodal 1 pin that connect single-chip switching power supply chip U2, negative pole connects the negative pole of high direct voltage, resistance R 2 is in parallel with capacitor C 2, one end connects the high direct voltage positive pole, the other end connects the negative electrode of diode D5, and the anode of diode D5 connects 5 pin of single-chip switching power supply chip U2, capacitor C 1 and resistance R 3 series connection, the other end of capacitor C 1 connects the high direct voltage positive pole, the other end of resistance R 3 connects 5 pin of single-chip switching power supply chip U2,2 pin of inverse-excitation type transformer T3 connect the high direct voltage positive pole, 1 pin of inverse-excitation type transformer T3 connects 5 pin of single-chip switching power supply chip U2,3 pin of inverse-excitation type transformer T3 connect the anode of diode D2,4 pin of inverse-excitation type transformer T3 connect capacitor C 3 negative poles, three capacitor C 3, C4 and C5 parallel connection, the negative electrode of cathode connecting diode D2 after the parallel connection, negative pole after the parallel connection connects 4 pin of inverse-excitation type transformer T3, two capacitor C 7 and C8 parallel connection, positive pole after the parallel connection connects an end of inductance L 1, negative pole after the parallel connection connects the dc low-voltage negative pole, two resistance R 5 and R9 series connection, common port connects 1 pin of accurate pressurizer Q2, the other end of resistance R 5 connects the dc low-voltage positive pole, the other end of resistance R 9 connects the dc low-voltage negative pole, the end of current-limiting resistance R6 connects 1 pin of photoelectricity coupling chip U1, the other end connects 2 pin of photoelectricity coupling chip U1, the end of current-limiting resistance R4 connects the negative electrode of diode D2, the other end connects 1 pin of photoelectricity coupling chip U1,2 pin of accurate pressurizer Q2 connect the dc low-voltage negative pole, 3 pin of accurate pressurizer Q2 connect 2 pin of U1, and capacitor C 11 is parallel between 1 pin and 3 pin of accurate pressurizer Q2, capacitor C 10 and resistance R 7 series connection, common port connects the collector electrode of triode Q1, the other end of resistance R 7 connects 3 pin of accurate pressurizer Q2, the other end of resistance C10 connects 4 pin of inverse-excitation type transformer T3, two resistance R 10 and R11 series connection, common port connects the base stage of triode Q1 by R8, the other end of resistance R 10 connects 4 pin of inverse-excitation type transformer T3, the other end of resistance R 11 connects the dc low-voltage negative pole, 4 pin of photoelectricity coupling chip U1 connect 2 pin of single-chip switching power supply chip U2,3 pin of photoelectricity coupling chip U1 and 3 pin of single-chip switching power supply chip U2,7 pin be connected to the high direct voltage negative pole after 8 pin link to each other, safe capacitor C 13 connects 4 pin of high direct voltage negative poles and inverse-excitation type transformer T3.
Described indicating member comprises triode Q3, current-limiting resistance R16, transistor base biasing resistor R18 and R19, two-color diode DN2, divider resistance R21 and R20.Divider resistance R20 and R21 series connection, common port connects the anode of two-color diode DN2, and the other end of divider resistance R21 connects the dc low-voltage positive pole, and the other end of divider resistance R20 connects the dc low-voltage negative pole.Transistor base biasing resistor R18 and R19 series connection, common port connects the base stage of triode Q3, and the other end of transistor base biasing resistor R18 connects the dc low-voltage positive pole, and the other end of transistor base biasing resistor R19 connects the dc low-voltage negative pole.The end of current-limiting resistance R16 connects the dc low-voltage positive pole, and the other end connects the collector electrode of triode Q3, and links to each other with another anode of two-color diode DN2.The emitter of triode Q3 connects the dc low-voltage negative pole.
Described silicon photocell plate interface unit comprises photocell connector J5 and isolating diode D7.Photocell connector J5 connecting interface wiring board and silicon photocell plate 1, isolating diode D7 connecting interface wiring board internal circuit and photocell connector.
Described built-in lithium battery interface unit comprises lithium battery connector J4 and isolating diode D9.The lithium battery connector connects built-in lithium battery and Line Card; Isolating diode D9 is between single-ended flyback pwm unit and lithium battery connector.
The described control unit that boosts comprises DC-DC conversion chip U3, current-limiting resistance R12 and R13, inductance L 2, diode D8, timing capacitor C14, output filter capacitor C15, sample resistance R14 and R15, sample resistance R14 and R15 series connection, common port connects 5 pin of DC-DC conversion chip U3, the other end of sample resistance R15 connects the dc low-voltage negative pole, the other end of sample resistance R14 connects the output voltage positive pole, current-limiting resistance R12 and R13 series connection, common port connects 7 pin of U3 and an end of inductance L 2, the other end of current-limiting resistance R12 connects the dc low-voltage positive pole, the other end of current-limiting resistance R13 connects 8 pin of DC-DC conversion chip U3, the other end of inductance L 2 connects 1 pin of DC-DC conversion chip U3, the anode of diode D8 connects 1 pin of DC-DC conversion chip U3, negative electrode connects the positive pole of output voltage positive pole and output filter capacitor C15, and the negative pole of output filter capacitor C15 connects the dc low-voltage negative pole.The end of timing capacitor C14 connects 3 pin of DC-DC conversion chip U3, and 2 pin that the other end connects DC-DC conversion chip U3 are connected the dc low-voltage negative pole with 4 pin.Described USB output interface unit is made up of standard USB connector J1 and standard USB connecting line, and the standard USB port of standard USB connecting line is inserted among the standard USB connector J1.Stable power forms outside electrical appliance charging path through USB output interface unit.Standard USB connector can externally form last output channel, and it links to each other with standard USB connecting line can be to multiple class digital product charging.
The present invention becomes electric energy by the silicon photocell plate with transform light energy and is stored in the built-in lithium battery, is charged to digital product by standard USB interface through the electric energy of boost control circuit with built-in lithium battery then; Under the situation of long-term no sunlight, also can pass through civil power (AC85V-265V) and charge to built-in lithium battery.
Can be divided into two kinds of charging modes by charging modes.A kind of is online charging modes, and directly by alternating current or the firm and hard existing logarithmic code product charging of silicon photocell, simultaneously without any need for operation, inside can be automatically to the built-in lithium battery energy storage; Another kind is the off-line charging modes, by alternating current or photocell built-in lithium battery is full of electricity after, again the built-in lithium battery energy is discharged logarithmic code product charging, more can the limit during charging limit use.
The present invention is applicable to the charging of mobile phone, digital camera, PMP (portable electronic device MP3/MP4), PDA (personal digital assistant/palmtop PC), PSP digital products such as (game machines).
The present invention combines the function and the characteristics of alternating current charging and solar recharging, and AC portion adopts pulse-width modulation circuit, selects components and parts high-quality, small size for use, and antijamming capability is strong, and defencive function is complete, and reliable and stable constant current constant voltage source can be provided; The silicon photocell plate has been selected ideal dimensions and best power supply combination again, and is ultra-thin integrated design, and the service of most convenient can be provided for people.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Fig. 2 is an electronic-circuit diagram of the present invention.
Embodiment
Below in conjunction with accompanying drawing embodiments of the invention are elaborated: present embodiment has provided detailed execution mode and process being to implement under the prerequisite with the technical solution of the present invention, but protection scope of the present invention is not limited to following embodiment.
As shown in Figure 1, present embodiment comprises silicon photocell plate 1, cap 2, Line Card 3, housing 4, built-in lithium battery 5 and battery case cover plate 6.Annexation is: cap 2 central authorities are provided with the square frame that embeds silicon photocell plate 1, and silicon photocell plate 1 can embed cap 2, as the part of shell of the present invention.Silicon photocell plate 1, built-in lithium battery 5 all are connected with Line Card 3.Line Card 3 by screw in housing 4 inside.Be provided with the box chamber that built-in lithium battery 5 is installed in the housing 4, behind the built-in lithium battery 5 of packing into, can seal up for safekeeping by the battery case cover plate 6 of activity.
As shown in Figure 2, described Line Card 3 comprises: exchange input interface unit, low-pass filtering rectification unit, single-ended flyback pwm unit, indicating member, silicon photocell plate interface unit, built-in lithium battery interface unit, control unit and USB output interface unit boost.Exchange input interface unit and finish and the docking of AC outlet, its input docks with AC outlet, and its output is connected with low-pass filtering rectification unit input; The low-pass filtering rectification unit is finished AC rectification and low-pass filtering, and its output is connected with single-ended flyback arteries and veins money modulating unit input; Single-ended flyback arteries and veins money modulating unit is finished the modulation of low-voltage direct, and its output is connected with the built-in lithium battery interface unit; Silicon photocell plate interface unit is finished and the docking of silicon photocell plate, and its input is connected with the silicon photocell plate, and its output is connected with built-in lithium battery interface unit input; Built-in lithium battery interface unit input is connected with the control unit input that boosts, and the control unit that boosts is finished the boosting inverter of low-voltage direct, and its output is connected with USB output interface unit; Indicating member is finished the state indication of built-in lithium battery in the alternating current charging process, red light represents that built-in lithium battery charges, green light represents that built-in lithium battery is full of, and its input is connected with the single-ended flyback pwm unit, and its output is led status and shows; Outside electrical appliance charging path is finished in USB output interface unit, and its input is connected with the control unit that boosts, and its output is connected with standard USB patchcord.
Described interchange input interface unit is made up of rotary connector support, contact spring, compression spring and plug pressing plate.The rotary connector support embeds in the rotary connector bracket groove corresponding in housing 4, and well contacts with contact spring; The plug pressing plate that the compression spring is housed is pressed on rotary connector bracket groove top and is fixed in the housing 4, finishes the path that alternating current is incorporated into Line Card 3.
Described low-pass filtering rectification unit is made up of fusing resistor F2, differential mode capacitor C6, common mode inductance T4, rectifier bridge (being made up of diode D1, D3, D4 and D6), high-voltage filtering capacitor C12.The end of fusing resistor F2 connects alternating current one end, and the other end connects 3 pin of capacitor C 6 and common mode inductance T4, and the other end of differential mode capacitor C6 connects 1 pin of the alternating current other end and common mode inductance T4.4 pin that are connected common mode inductance T4 after the negative electrode of the anode of diode D1 and diode D3 links to each other, the anode of diode D4 is connected 3 pin of T4 with the continuous back of the negative electrode of D6, the positive pole that is connected capacitor C 12 after the negative electrode of the negative electrode of diode D1 and diode D4 links to each other, the continuous back of the anode of the anode of diode D3 and diode D6 is connected the negative pole of C12.
Produce high direct voltage behind the alternating current process low-pass filtering rectification unit of 85V-265V wide region.Become filter to curb with the common mode inductive bank by differential mode capacitor from the High-frequency Interference of electrical network; Circuit accident fault is then protected by fusing resistor, but he after fault is removed restore circuit unimpeded again.
Described single-ended flyback pwm unit is by a winding clamp circuit (resistance R 2, capacitor C 2 and diode D5), a winding ring suppresses circuit (capacitor C 1 and resistance R 3), single-chip switching power supply chip U2, capacitor C 9, safe capacitor C 13, inverse-excitation type transformer T3, secondary winding rectifier diode D2, secondary winding filter capacitor C3, C4 and C5, filter inductance L1, current-limiting resistance R4 and R6, photoelectricity coupling chip U1, output filter capacitor C7 and C8, output voltage sample resistance R5 and R9, accurate pressurizer Q2, building-out capacitor C11 and current control circuit (triode Q1, resistance R 7, R8, R10, R11 and capacitor C 10) form.Capacitor C 9 anodal 1 pin that connect single-chip switching power supply chip U2, negative pole connects the negative pole of high direct voltage.Resistance R 2 is in parallel with capacitor C 2, and an end connects the high direct voltage positive pole, and the other end connects the negative electrode of diode D5, and the anode of D5 connects 5 pin of single-chip switching power supply chip U2.Capacitor C 1 and resistance R 3 series connection, the other end of capacitor C 1 connects the high direct voltage positive pole, and the other end of resistance R 3 connects 5 pin of single-chip switching power supply chip U2.2 pin of inverse-excitation type transformer T3 connect the high direct voltage positive pole, and 1 pin connects 5 pin of single-chip switching power supply chip U2, and 3 pin connect the anode of diode D2, and 4 pin connect capacitor C 3 negative poles.Capacitor C 3, C4 and C5 parallel connection, the negative electrode of cathode connecting diode D2, negative pole connects 4 pin of inverse-excitation type transformer T3.Capacitor C 7 and C8 parallel connection, an anodal end that connects inductance L 1, negative pole connects the dc low-voltage negative pole.Resistance R 5 and R9 series connection, common port connects 1 pin of accurate pressurizer Q2, and the other end of resistance R 5 connects the dc low-voltage positive pole, and the other end of resistance R 9 connects the dc low-voltage negative pole.The end of current-limiting resistance R6 connects 1 pin of photoelectricity coupling chip U1, and the other end connects 2 pin of photoelectricity coupling chip U1.The end of current-limiting resistance R4 connects the negative electrode of diode D2, and the other end connects 1 pin of photoelectricity coupling chip U1.2 pin of accurate pressurizer Q2 connect the dc low-voltage negative pole, and 3 pin of accurate pressurizer Q2 connect 2 pin of U1, and capacitor C 11 is parallel between 1 pin and 3 pin of accurate pressurizer Q2.C10 and R7 series connection, common port connects the collector electrode of triode Q1, and the other end of resistance R 7 connects 3 pin of accurate pressurizer Q2, and the other end of resistance C10 connects 4 pin of inverse-excitation type transformer T3.Resistance R 10 and R11 series connection, common port is by the base stage of R8 connection triode Q1, and the other end of resistance R 10 connects 4 pin of inverse-excitation type transformer T3, and the other end of resistance R 11 connects the dc low-voltage negative pole.4 pin of photoelectricity coupling chip U1 connect 2 pin of single-chip switching power supply chip U2,3 pin of photoelectricity coupling chip U1 and 3 pin, 7 pin of single-chip switching power supply chip U2 and be connected to the high direct voltage negative pole after 8 pin link to each other.Safe capacitor C 13 connects 4 pin of high direct voltage negative pole and inverse-excitation type transformer T3.
Produce stable dc low-voltage behind the high direct voltage process single-ended flyback pwm unit, and have the constant current constant voltage characteristic.But the peak voltage of forming a winding clamp circuit absorbing high-frequency transformer leakage inductance generation by resistance, electric capacity and diode, prevent that peak voltage is superimposed upon high direct voltage and instead swashs on the voltage, make single-chip switching power supply chip drain voltage surpass its permissible value and cause its inner MOSFET avalanche breakdown.Forming a winding ring by resistance and electric capacity suppresses circuit and can be used to suppress the radiated noise that formed by ringing voltage.The single-chip switching power supply chip can be realized pulse-width modulation, and its chip internal has perfect defencive function.The inverse-excitation type transformer can be by regulating the duty ratio pressure regulation.Form the secondary winding current rectifying and wave filtering circuit by diode and three electric capacity, electric capacity is done in parallel the use, can reduce distributed inductance, forms the exportable stable dc low-voltage of ∏ type filter circuit by filter inductance and two output filter capacitors again.By a resistance current limliting photoelectrical coupler chip, the accurate pressurizer of another resistance current limliting.Compare by two resistance sampling dc low-voltages and accurate pressurizer reference voltage, to determine accurate pressurizer cathode voltage, thereby the operating current of light-emitting diode in the adjustment photoelectrical coupler, carry out pulse-width modulation to obtain different duty ratios through the single-chip switching power supply chip again, can realize the fast reaction of control loop; Wherein the electric capacity that links to each other with sample resistance has the frequency compensation effect, prevents that accurate pressurizer from producing self-oscillation.By triode, electric capacity and four resistance component current control circuits, its transistor base is 4 pin potential difference dividing potential drop gained by dc low-voltage negative pole and inverse-excitation type transformer T3.In order to make high direct voltage and dc low-voltage not add a safe electric capacity altogether.
Described indicating member is made up of triode Q3, current-limiting resistance R16, transistor base biasing resistor R18 and R19, two-color diode DN2, divider resistance R21 and R20.Divider resistance R20 and R21 series connection, common port connects the anode of two-color diode DN2, and the other end of divider resistance R21 connects the dc low-voltage positive pole, and the other end of divider resistance R20 connects the dc low-voltage negative pole.Transistor base biasing resistor R18 and R19 series connection, common port connects the base stage of triode Q3, and the other end of transistor base biasing resistor R18 connects the dc low-voltage positive pole, and the other end of transistor base biasing resistor R19 connects the dc low-voltage negative pole.The end of current-limiting resistance R16 connects the dc low-voltage positive pole, and the other end connects the collector electrode of triode Q3, and links to each other with another anode of two-color diode DN2.The emitter of triode Q3 connects the dc low-voltage negative pole.
Dc low-voltage can be judged the state of internal battery through indicating member.Become bleeder circuit by two resistor group, built-in lithium battery 9 voltages are during less than its charging voltage, and it is red that two-color diode shows, and output is constant-current characteristics, and triode is in conducting state.After current control circuit was adjusted into constant voltage with output by constant current, bias voltage was reduced to after the set point triode and is become by conducting and end, and green light is bright.
Described silicon photocell plate interface unit is made up of photocell connector J5 and isolating diode D7.Photocell connector J5 finishes docking of Line Card 3 and silicon photocell plate 1, and the energy that silicon photocell plate 1 is produced is sent on the Line Card; Isolating diode D7 connecting interface wiring board internal circuit and photocell connector prevent that energy from returning.
Described built-in lithium battery interface unit is made up of lithium battery connector J4 and isolating diode D9.The lithium battery connector connects built-in lithium battery 5 and Line Card 3 other circuit; Isolating diode D9 prevents that built-in lithium battery 5 energy from turning back to the single-ended flyback pwm unit between single-ended flyback pwm unit and lithium battery connector.
The energy of alternating current and solar energy is stored in the built-in lithium battery 5 through built-in lithium battery 5 interface units.Diode plays buffer action, electric current backflow when preventing the power supply of Alternating Current Power Supply or photocell.All can send built-in lithium battery 5 to by Alternating Current Power Supply or photocell power supply through the lithium battery connector.
The described control unit that boosts comprises DC-DC conversion chip U3, current-limiting resistance R12 and R13, inductance L 2, diode D8, timing capacitor C14, output filter capacitor C15, sample resistance R14 and R15, sample resistance R14 and R15 series connection, common port connects 5 pin of DC-DC conversion chip U3, the other end of sample resistance R15 connects the dc low-voltage negative pole, the other end of sample resistance R14 connects the output voltage positive pole, current-limiting resistance R12 and R13 series connection, common port connects 7 pin of U3 and an end of inductance L 2, the other end of current-limiting resistance R12 connects the dc low-voltage positive pole, the other end of current-limiting resistance R13 connects 8 pin of DC-DC conversion chip U3, the other end of inductance L 2 connects 1 pin of DC-DC conversion chip U3, the anode of diode D8 connects 1 pin of DC-DC conversion chip U3, negative electrode connects the positive pole of output voltage positive pole and output filter capacitor C15, and the negative pole of output filter capacitor C15 connects the dc low-voltage negative pole.The end of timing capacitor C14 connects 3 pin of DC-DC conversion chip U3, and 2 pin that the other end connects DC-DC conversion chip U3 are connected the dc low-voltage negative pole with 4 pin.
Described built-in lithium battery 5 voltages boost to the stable voltage that requires through the control unit that boosts.DC-DC conversion chip is a kind of monolithic integrated circuit, is exclusively used in dc-dc conversion.Include temperature compensation bandgap a reference source, a duty cycle control oscillatory driver and big electric current output switch in the sheet.Formed metering function by two resistance, one of them resistance can limit electric current in conversion chip rated value.Timing capacitor is constantly charged and is discharged to produce waveform, the decision frequency of oscillation.Chip internal provides normal voltage, and output two resistance sampling dividing potential drops, its value obtains control with the internal standard voltage ratio.
Described USB output interface unit is made up of standard USB connector J1 and standard USB connecting line, and the standard USB port of standard USB connecting line can be inserted among the standard USB connector J1.Stable power forms outside electrical appliance charging path through USB output interface unit.Standard USB connector can externally form last output channel, and it links to each other with standard USB connecting line can be to multiple class digital product charging.
In the present embodiment, silicon photocell plate 1 is connected with Line Card 3 by the photocell connector that places Line Card 3.Built-in lithium battery 5 is connected with Line Card 3 by the lithium battery connector that places Line Card 3.Line Card 3 by screw in housing 4 inside.Housing 4 is provided with the rotary connector bracket groove, behind the rotary connector support that places Line Card 3 of packing into, can directly dock with AC outlet.Housing 4 is provided with circular indicator lamp hole, pack into place the bi-colour LED of Line Card 3 after, can indicate whether built-in lithium battery 5 is full of in the AC charging process.Housing 4 is provided with standard usb interface slot, after the standard USB socket that places Line Card 3 of packing into, can dock to finish the external charging path with standard USB connecting line.
Present embodiment compared with prior art has following outstanding advantage:
(1) sharing functionality.Integrated AC charging and two kinds of forms of solar recharging, alternating current charging, solar recharging respectively and insulation blocking is arranged between the built-in lithium battery can mutually and be deposited mutually noninterfere.Wherein alternating current charging adopts the PWM control technology.
(2) deixis.Indicator light is red in the AC charging process, is full of rear indicator light and turns green automatically.
(3) defencive function.Alternating current has overvoltage, overcurrent, short-circuit protection; Lithium battery have overcharge, cross put, short-circuit protection;
(4) output function.Standard USB interface can provide constant pressure and flow output; Ripple is little; Voltage, load regulation are low.
(5) integrated function.The product ultrathin design, easy to carry, the quality brilliance, environmental protection and energy saving, safe and reliable.
Present embodiment can bear the withstand voltage experiment of 1500V, and its leakage current is less than 10mA.Size 119 * 71 * 17mm, weight is less than 150g.
Claims (10)
1, a kind of portable portable power supplies that possesses alternating current charging and solar recharging, comprise: silicon photocell plate, cap, Line Card, housing, built-in lithium battery and battery case cover plate, it is characterized in that, the silicon photocell plate embeds cap, silicon photocell plate, built-in lithium battery all are connected with Line Card, and Line Card is fixed on enclosure interior, are provided with the box chamber in the housing, built-in lithium battery is arranged in the box chamber in the housing, and this box chamber is sealed up for safekeeping by the battery case cover plate;
Described Line Card comprises: exchange input interface unit, the low-pass filtering rectification unit, the single-ended flyback pwm unit, indicating member, silicon photocell plate interface unit, the built-in lithium battery interface unit, control unit and USB output interface unit boost, exchanging the input interface unit input docks with AC outlet, exchanging the input interface unit output is connected with low-pass filtering rectification unit input, low-pass filtering rectification unit output is connected with single-ended flyback pwm unit input, single-ended flyback pwm unit output is connected with the built-in lithium battery interface unit, silicon photocell plate interface unit input is connected with the silicon photocell plate, and silicon photocell plate interface unit output is connected with built-in lithium battery interface unit input; Built-in lithium battery interface unit input is connected with the control unit input that boosts, the control unit output that boosts is connected with USB output interface unit, the indicating member input is connected with the single-ended flyback pwm unit, and indicating member is output as led status and shows; USB output interface unit input is connected with the control unit that boosts, and USB output interface unit output is connected with standard USB patchcord.
2, the portable portable power supplies that possesses alternating current charging and solar recharging according to claim 1, it is characterized in that, described interchange input interface unit comprises rotary connector support, contact spring, compression spring and plug pressing plate, the rotary connector support embeds in the rotary connector bracket groove corresponding in housing, and contact with contact spring, the plug pressing plate that is provided with the compression spring is pressed on rotary connector bracket groove top and is fixed in the housing.
3, the portable portable power supplies that possesses alternating current charging and solar recharging according to claim 1 is characterized in that, described low-pass filtering rectification unit comprises that fusing resistor F2, differential mode capacitor C6, common mode inductance T4, high-voltage filtering capacitor C12 form; Rectifier bridge is by four diode D1, D3, D4 and D6 constitute, wherein: the end of fusing resistor F2 connects alternating current one end, the other end connects 3 pin of capacitor C 6 and common mode inductance T4, and the other end of differential mode capacitor C6 connects 1 pin of the alternating current other end and common mode inductance T4,4 pin that are connected common mode inductance T4 after the negative electrode of the anode of diode D1 and diode D3 links to each other, the anode of diode D4 is connected 2 pin of T4 with the continuous back of the negative electrode of D6, the positive pole that is connected capacitor C 12 after the negative electrode of the negative electrode of diode D1 and diode D4 links to each other, the continuous back of the anode of the anode of diode D3 and diode D6 is connected the negative pole of C12.
4, the portable portable power supplies that possesses alternating current charging and solar recharging according to claim 1, it is characterized in that described single-ended flyback pwm unit comprises the winding clamp circuit one time, a winding ring suppresses circuit, single-chip switching power supply chip U2, capacitor C 9, safe capacitor C 13, inverse-excitation type transformer T3, secondary winding rectifier diode D2, secondary winding filter capacitor C3, C4 and C5, filter inductance L1, current-limiting resistance R4 and R6, photoelectricity coupling chip U1, output filter capacitor C7 and C8, output voltage sample resistance R5 and R9, accurate pressurizer Q2, building-out capacitor C11 and current control circuit; Wherein, a winding clamp circuit is by resistance R 2, capacitor C 2 and diode D5 form, a winding ring suppresses circuit and is made up of capacitor C 1 and resistance R 3, current control circuit is by triode Q1, resistance R 7, R8, R10, R11 and capacitor C 10 are formed, connected mode is: capacitor C 9 anodal 1 pin that connect single-chip switching power supply chip U2, negative pole connects the negative pole of high direct voltage, resistance R 2 is in parallel with capacitor C 2, one end connects the high direct voltage positive pole, the other end connects the negative electrode of diode D5, and the anode of diode D5 connects 5 pin of single-chip switching power supply chip U2, capacitor C 1 and resistance R 3 series connection, the other end of capacitor C 1 connects the high direct voltage positive pole, the other end of resistance R 3 connects 5 pin of single-chip switching power supply chip U2,2 pin of inverse-excitation type transformer T3 connect the high direct voltage positive pole, 1 pin of inverse-excitation type transformer T3 connects 5 pin of single-chip switching power supply chip U2,3 pin of inverse-excitation type transformer T3 connect the anode of diode D2,4 pin of inverse-excitation type transformer T3 connect capacitor C 3 negative poles, three capacitor C 3, C4 and C5 parallel connection, the negative electrode of cathode connecting diode D2 after the parallel connection, negative pole after the parallel connection connects 4 pin of inverse-excitation type transformer T3, two capacitor C 7 and C8 parallel connection, positive pole after the parallel connection connects an end of inductance L 1, negative pole after the parallel connection connects the dc low-voltage negative pole, two resistance R 5 and R9 series connection, common port connects 1 pin of accurate pressurizer Q2, the other end of resistance R 5 connects the dc low-voltage positive pole, the other end of resistance R 9 connects the dc low-voltage negative pole, the end of current-limiting resistance R6 connects 1 pin of photoelectricity coupling chip U1, the other end connects 2 pin of photoelectricity coupling chip U1, the end of current-limiting resistance R4 connects the negative electrode of diode D2, the other end connects 1 pin of photoelectricity coupling chip U1,2 pin of accurate pressurizer Q2 connect the dc low-voltage negative pole, 3 pin of accurate pressurizer Q2 connect 2 pin of U1, and capacitor C 11 is parallel between 1 pin and 3 pin of accurate pressurizer Q2, capacitor C 10 and resistance R 7 series connection, common port connects the collector electrode of triode Q1, the other end of resistance R 7 connects 3 pin of accurate pressurizer Q2, the other end of resistance C10 connects 4 pin of inverse-excitation type transformer T3, two resistance R 10 and R11 series connection, common port connects the base stage of triode Q1 by R8, the other end of resistance R 10 connects 4 pin of inverse-excitation type transformer T3, the other end of resistance R 11 connects the dc low-voltage negative pole, 4 pin of photoelectricity coupling chip U1 connect 2 pin of single-chip switching power supply chip U2,3 pin of photoelectricity coupling chip U1 and 3 pin of single-chip switching power supply chip U2,7 pin be connected to the high direct voltage negative pole after 8 pin link to each other, safe capacitor C 13 connects 4 pin of high direct voltage negative poles and inverse-excitation type transformer T3.
5, the portable portable power supplies that possesses alternating current charging and solar recharging according to claim 1, it is characterized in that, described indicating member comprises triode Q3, current-limiting resistance R16, transistor base biasing resistor R18 and R19, two-color diode DN2, divider resistance R21 and R20, two divider resistance R20 and R21 series connection, common port connects the anode of two-color diode DN2, the other end of divider resistance R21 connects the dc low-voltage positive pole, the other end of divider resistance R20 connects the dc low-voltage negative pole, transistor base biasing resistor R18 and R19 series connection, common port connects the base stage of triode Q3, the other end of transistor base biasing resistor R18 connects the dc low-voltage positive pole, the other end of transistor base biasing resistor R19 connects the dc low-voltage negative pole, the end of current-limiting resistance R16 connects the dc low-voltage positive pole, the other end connects the collector electrode of triode Q3, and link to each other with another anode of two-color diode DN2, the emitter of triode Q3 connects the dc low-voltage negative pole.
6, the portable portable power supplies that possesses alternating current charging and solar recharging according to claim 1, it is characterized in that, described silicon photocell plate interface unit comprises photocell connector J5 and isolating diode D7, photocell connector J5 connecting interface wiring board and silicon photocell plate, isolating diode D7 connecting interface wiring board internal circuit and photocell connector.
7, the portable portable power supplies that possesses alternating current charging and solar recharging according to claim 1, it is characterized in that, described built-in lithium battery interface unit comprises lithium battery connector J4 and isolating diode D9, the lithium battery connector connects built-in lithium battery and Line Card, and isolating diode D9 is between single-ended flyback pwm unit and lithium battery connector.
8, the portable portable power supplies that possesses alternating current charging and solar recharging according to claim 1, it is characterized in that, the described control unit that boosts comprises DC-DC conversion chip U3, current-limiting resistance R12 and R13, inductance L 2, diode D8, timing capacitor C14, output filter capacitor C15, sample resistance R14 and R15, sample resistance R14 and R15 series connection, common port connects 5 pin of DC-DC conversion chip U3, the other end of sample resistance R15 connects the dc low-voltage negative pole, the other end of sample resistance R14 connects the output voltage positive pole, current-limiting resistance R12 and R13 series connection, common port connects 7 pin of U3 and an end of inductance L 2, the other end of current-limiting resistance R12 connects the dc low-voltage positive pole, the other end of current-limiting resistance R13 connects 8 pin of DC-DC conversion chip U3, the other end of inductance L 2 connects 1 pin of DC-DC conversion chip U3, the anode of diode D8 connects 1 pin of DC-DC conversion chip U3, negative electrode connects the positive pole of output voltage positive pole and output filter capacitor C15, the negative pole of output filter capacitor C15 connects the dc low-voltage negative pole, the end of timing capacitor C14 connects 3 pin of DC-DC conversion chip U3, and 2 pin that the other end connects DC-DC conversion chip U3 are connected the dc low-voltage negative pole with 4 pin.
9, the portable portable power supplies that possesses alternating current charging and solar recharging according to claim 1, it is characterized in that, described USB output interface unit comprises standard USB connector J1 and standard USB connecting line, the standard USB port of standard USB connecting line is inserted among the standard USB connector J1, and standard USB connector externally forms last output channel.
10, the portable portable power supplies that possesses alternating current charging and solar recharging according to claim 1, it is characterized in that, described indicating member is finished the state indication of built-in lithium battery in the alternating current charging process, red light represents that built-in lithium battery charges, and green light represents that built-in lithium battery is full of.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100422963A CN100525006C (en) | 2007-06-21 | 2007-06-21 | Movable power supply with AC and solar charging functions |
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| Application Number | Priority Date | Filing Date | Title |
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| CNB2007100422963A CN100525006C (en) | 2007-06-21 | 2007-06-21 | Movable power supply with AC and solar charging functions |
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| CN101075747A CN101075747A (en) | 2007-11-21 |
| CN100525006C true CN100525006C (en) | 2009-08-05 |
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| CNB2007100422963A Active CN100525006C (en) | 2007-06-21 | 2007-06-21 | Movable power supply with AC and solar charging functions |
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Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101814641B (en) * | 2009-11-18 | 2012-03-14 | 常熟阿特斯阳光电力科技有限公司 | Solar mobile phone battery pack |
| CN103840493A (en) * | 2012-11-21 | 2014-06-04 | 江苏天宇光伏科技有限公司 | Business type solar charger |
| CN104034926B (en) * | 2014-06-24 | 2017-01-18 | 南宁学院 | Universal meter battery box |
| CN104377779A (en) * | 2014-11-27 | 2015-02-25 | 天津市盘石纳新科技股份有限公司 | Portable charger for financial system |
| CN104868576A (en) * | 2015-05-13 | 2015-08-26 | 苏州工业园区服务外包职业学院 | Solar charger |
| CN104901563A (en) * | 2015-06-19 | 2015-09-09 | 温州市麦特力克电器有限公司 | USB socket |
| CN105406542B (en) * | 2015-12-11 | 2018-09-18 | 上海空间电源研究所 | A kind of voltage-controlled current-limiting charging circuit of ultracapacitor group |
| CN105720647A (en) * | 2016-04-11 | 2016-06-29 | 西南交通大学 | Power adapter with multiple charging modes |
| CN105826986A (en) * | 2016-05-18 | 2016-08-03 | 刁秀清 | Outdoor solar power generation device |
| CN106786863B (en) * | 2016-12-14 | 2023-10-20 | 广州高昶软件科技有限公司 | Multifunctional portable personal intelligent mobile power supply |
| CN110994717A (en) * | 2019-11-28 | 2020-04-10 | 徐州苏创信息技术有限公司 | Multifunctional charging device for electronic product |
| CN111786564B (en) * | 2020-07-15 | 2022-03-01 | 江苏能华微电子科技发展有限公司 | High efficiency compact quick charging source |
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2007
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