CN103117584B - Portable solar mobile power supply - Google Patents
Portable solar mobile power supply Download PDFInfo
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- CN103117584B CN103117584B CN201310072727.6A CN201310072727A CN103117584B CN 103117584 B CN103117584 B CN 103117584B CN 201310072727 A CN201310072727 A CN 201310072727A CN 103117584 B CN103117584 B CN 103117584B
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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
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- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
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Abstract
Portable solar mobile power supply comprises a solar cell panel, a storage battery, a single chip microcomputer, a charging circuit, a voltage regulator circuit and a voltage sampling circuit, wherein the charging circuit is provided with a first voltage-regulator diode. Provided that the light condition is good, when output voltage of the solar cell panel is larger than reverse breakdown voltage of the first voltage-regulator diode, the solar cell panel can charge the storage battery even in a shutdown state, so that the charging efficiency is improved. Accordingly the portable solar mobile power supply has the advantages of improving the charging efficiency due to the fact that the charging circuit is optimized and being small in size and easy to carry.
Description
Technical field
The present invention relates to portable power source and manufacture field, particularly relate to a kind of portable type solar energy portable power source.
Background technology
Portable power source is a kind of portable charger that integrates power supply and charge function, the feature such as conventionally have that capacity is large, purposes is many, volume is little, the life-span is long and safe and reliable can be the multiple digital product power supply such as mobile phone, digital camera, MP3, MP4, PDA, palmtop PC, handheld device or standby charging whenever and wherever possible.Along with the development of portable power source, there is the solar energy movable power supply with solar panel, thereby in use can charge and reach the object of supplying electric weight by sunlight.
The charge power supply of solar energy movable power supply comes from solar panel to light transformation of energy.In the situation that intensity of illumination is constant, the surface area that increases solar panel is the main method that improves solar energy movable power supply charge efficiency with optimizing charging circuit, but, the surface area that increases solar panel has improved production cost, increased the volume of solar energy movable power supply, be not easy to carry.In addition, traditional solar energy movable power supply only has charge function under open state, and charge efficiency is lower.
Summary of the invention
Based on this, being necessary, for the lower problem of the charge efficiency of traditional solar energy movable power supply, provides the portable type solar energy portable power source that a kind of charge efficiency is higher.
A portable type solar energy portable power source, comprises solar panel, storage battery, single-chip microcomputer, charging circuit, voltage stabilizing circuit and voltage sampling circuit,
Described charging circuit comprises the first diode, the second diode, the 3rd diode, the 4th diode, switch, the first voltage stabilizing didoe, the first resistance, the second resistance, the 3rd resistance, the 4th resistance, the 5th resistance, the first triode, the second triode, the first metal-oxide-semiconductor, the second metal-oxide-semiconductor, the second voltage stabilizing didoe, the 3rd triode, the 6th resistance, the 7th resistance and the 8th resistance, the positive pole of described the first diode connects the positive pole of described solar panel, the negative pole of described the first diode connects respectively the inlet wire binding post of described switch and the positive pole of described storage battery, the minus earth of described storage battery, described the second diodes in parallel is connected in described the first diode, the outlet binding post of described switch connects the positive pole of described the 3rd diode, the negative pole of described the 3rd diode connects described voltage stabilizing circuit, the negative pole of described the first voltage stabilizing didoe, the source electrode of one end of described the first resistance and described the first triode connects respectively the positive pole of described solar panel, the positive pole of described the first voltage stabilizing didoe connects one end of described the second resistance, the other end of described the second resistance connects respectively the base stage of described the second triode and one end of described the 3rd resistance, the emitter of the other end of described the 3rd resistance and described the second triode is ground connection respectively, the drain electrode of described the second triode connects one end of described the 4th resistance, the other end of described the 4th resistance connects respectively the other end and described first transistor base of described the first resistance, the collector electrode of described the first triode connects the positive pole of described the 4th diode, the negative pole of described the 4th diode connects one end of described the 5th resistance, voltage stabilizing circuit described in another termination of described the 5th resistance, the drain electrode of described the first metal-oxide-semiconductor and described the second metal-oxide-semiconductor connects respectively the negative pole of described solar panel, described the first metal-oxide-semiconductor and described the second metal-oxide-semiconductor source electrode ground connection respectively, the negative pole of the first diode described in one termination of described the 6th resistance, the other end connects respectively one end of described the 7th resistance, the grid of described the first metal-oxide-semiconductor, the negative pole of the grid of described the second metal-oxide-semiconductor and described the second zener diode, the plus earth of described the second zener diode, the collector electrode of the 3rd triode described in another termination of described the 7th resistance, the grounded emitter of described the 3rd triode, grid connects described single-chip microcomputer by described the 8th resistance,
Described voltage stabilizing circuit comprises the first electric capacity, the second electric capacity and three-terminal voltage-stabilizing pipe, the input of described three-terminal voltage-stabilizing pipe connects respectively the other end of described the 5th resistance and the negative pole of described the 3rd diode, the input of three-terminal voltage-stabilizing pipe described in one termination of described the first electric capacity, other end ground connection, the output of described three-terminal voltage-stabilizing pipe connects respectively one end and the described single-chip microcomputer of described the second electric capacity, the earth terminal ground connection of the other end of described the second electric capacity and described three-terminal voltage-stabilizing pipe;
Described voltage sampling circuit comprises battery tension sample circuit and cell plate voltage sample circuit, described battery tension sample circuit is for gathering the voltage of described storage battery and exporting storage battery sampled voltage to single-chip microcomputer, described cell plate voltage sample circuit is for gathering the voltage of described solar panel and exporting cell panel sampled voltage to single-chip microcomputer, described cell plate voltage sample circuit comprises the 9th resistance, the tenth resistance and the 3rd electric capacity, the positive pole of solar panel described in one termination of described the 9th resistance, the other end connects respectively one end of described the tenth resistance and one end of described the 3rd electric capacity, the other end of the other end of described the tenth resistance and described the 3rd electric capacity is ground connection respectively, described battery tension sample circuit comprises the 11 resistance, the 12 resistance and the 4th electric capacity, the positive pole of storage battery described in one termination of described the 11 resistance, the other end connects respectively one end of described the 12 resistance and one end of described the 4th electric capacity, the other end of the other end of described the 12 resistance and described the 4th electric capacity is ground connection respectively,
Described single-chip microcomputer prestores the first storage battery threshold voltage, the second storage battery threshold voltage and cell panel threshold voltage, when described cell panel sampled voltage is during lower than described cell panel threshold voltage, described Single-chip Controlling is turn-offed described charging circuit, and described solar panel stops described charge in batteries; When described cell panel sampled voltage is higher than described cell panel threshold voltage, and described storage battery sampled voltage is during lower than described the first storage battery threshold voltage, charging circuit described in described Single-chip Controlling conducting, described solar panel starts described charge in batteries; When described cell panel sampled voltage is higher than described cell panel threshold voltage, and described storage battery sampled voltage is during higher than described the second storage battery threshold voltage, described Single-chip Controlling is turn-offed described charging circuit, and described solar panel stops described charge in batteries; When described cell panel sampled voltage is higher than described cell panel threshold voltage, and described storage battery sampled voltage is during higher than described the first storage battery threshold voltage and lower than described the second storage battery threshold voltage, charging circuit is in hold mode described in described Single-chip Controlling; Described the first storage battery threshold voltage is lower than described the second storage battery threshold voltage.
Therein in an embodiment, also comprise discharge circuit with for gathering the discharging current of discharge circuit and exporting sample rate current to the discharging current Acquisition Circuit of described single-chip microcomputer,
Described discharge circuit comprises load socket, the 3rd metal-oxide-semiconductor, the 4th metal-oxide-semiconductor, the 13 resistance, the 14 resistance, the 15 resistance, the 16 resistance, the 4th triode and the 3rd voltage stabilizing didoe, a binding post of described load socket connects the outlet binding post of described switch, another binding post connects and connects respectively the drain electrode of described the 3rd metal-oxide-semiconductor and the drain electrode of described the 4th metal-oxide-semiconductor, the source electrode of the source electrode of described the 3rd metal-oxide-semiconductor and described the 4th metal-oxide-semiconductor is by described the 13 grounding through resistance, the grid of the grid of described the 3rd metal-oxide-semiconductor and described the 4th metal-oxide-semiconductor connects one end of described the 14 resistance and the negative pole of described the 3rd voltage stabilizing didoe, the plus earth of described the 3rd voltage stabilizing didoe, the other end of described the 14 resistance connects respectively one end of described the 15 resistance and the collector electrode of described the 4th triode, the outlet binding post of switch described in another termination of described the 15 resistance, the grounded emitter of described the 4th triode, base stage connects described single-chip microcomputer by described the 16 resistance,
Described discharging current Acquisition Circuit comprises the 17 resistance and the 5th electric capacity, the source electrode of the 3rd metal-oxide-semiconductor and the source electrode of described the 4th metal-oxide-semiconductor described in one termination of described the 17 resistance, single-chip microcomputer described in another termination, described the 5th Capacitance parallel connection is connected in the two ends of described the 13 resistance;
Described single-chip microcomputer also prestores first threshold electric current and Second Threshold electric current, described first threshold electric current is lower than described Second Threshold electric current, when described sample rate current is during lower than described first threshold electric current or higher than described Second Threshold electric current, described Single-chip Controlling is turn-offed described discharge circuit.
Therein in an embodiment, also comprise fuse and the 5th diode, described fuse is connected in the positive pole of described storage battery, and the positive pole of described the 5th diode connects the negative pole of described storage battery, and the negative pole of described the 5th diode connects the positive pole of described storage battery by described fuse.
Above-mentioned portable type solar energy portable power source, even under off-mode, if better at illumination condition, when the output voltage of solar panel is greater than the reverse breakdown voltage of the first voltage stabilizing didoe, solar panel just can charge to storage battery, has improved charge efficiency.By optimizing charging circuit, improve charge efficiency, can not increase the volume of solar energy movable power supply, small volume, is easy to carry.
Accompanying drawing explanation
Fig. 1 is the electrical schematic diagram of the portable type solar energy portable power source of an embodiment.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in detail.
As shown in Figure 1, in one embodiment, a kind of portable type solar energy portable power source, comprises solar panel SR, storage battery BT, single-chip microcomputer U1, charging circuit, voltage stabilizing circuit and voltage sampling circuit.In the present embodiment, single-chip microcomputer U1 adopts PIC16F676 type single-chip microcomputer.
Charging circuit comprises the first diode D1, the second diode D2, the 3rd diode D3, the 4th diode D4, K switch, the first voltage stabilizing didoe ZD1, the first resistance R 1, the second resistance R 2, the 3rd resistance R 3, the 4th resistance R 4, the 5th resistance R 5, the first triode Q1, the second triode Q2, the first metal-oxide-semiconductor M1, the second metal-oxide-semiconductor M2, the second voltage stabilizing didoe ZD2, the 3rd triode Q3, the 6th resistance R 6, the 7th resistance R 7 and the 8th resistance R 8.The positive pole of the first diode D1 connects the positive pole of solar panel SR, and the negative pole of the first diode D1 connects respectively the inlet wire binding post of K switch and the positive pole of storage battery BT, the minus earth of storage battery BT.The second diode D2 is connected in parallel in the first diode D1, concrete, and the positive pole of the second diode D2 connects the positive pole of the first diode D1, and the negative pole of the second diode D2 connects the negative pole of the first diode D1.The outlet binding post of K switch connects the positive pole of the 3rd diode D3, and the negative pole of the 3rd diode D3 connects voltage stabilizing circuit.The source electrode of one end of the negative pole of the first voltage stabilizing didoe ZD1, the first resistance R 1 and the first triode Q1 connects respectively the positive pole of solar panel SR, and the positive pole of the first voltage stabilizing didoe ZD1 connects one end of the second resistance R 2.The other end of the second resistance R 2 connects respectively one end of base stage and the 3rd resistance R 3 of the second triode Q2.The emitter of the other end of the 3rd resistance R 3 and the second triode Q2 is ground connection respectively.The drain electrode of the second triode Q2 connects one end of the 4th resistance R 4, and the other end of the 4th resistance R 4 connects respectively the other end and the first triode Q1 base stage of the first resistance R 1.The collector electrode of the first triode Q1 connects the positive pole of the 4th diode D4.The negative pole of the 4th diode D4 connects one end of the 5th resistance R 5, another termination voltage stabilizing circuit of the 5th resistance R 5.The drain electrode of the first metal-oxide-semiconductor M1 and the second metal-oxide-semiconductor M2 connects respectively the negative pole of solar panel SR, the first metal-oxide-semiconductor M1 and the second metal-oxide-semiconductor M2 source electrode ground connection respectively.The negative pole of one termination the first diode D1 of the 6th resistance R 6, the other end connects respectively one end of the 7th resistance R 7, the grid of the grid of the first metal-oxide-semiconductor M1, the second metal-oxide-semiconductor M2 and the negative pole of the second zener diode ZD2.The plus earth of the second zener diode ZD2, the collector electrode of another termination the 3rd triode Q3 of the 7th resistance R 7, the grounded emitter of the 3rd triode Q3, the pin 12(that grid meets single-chip microcomputer U1 by the 8th resistance R 8 is shown in the wiring node CS in Fig. 1).Wherein, the first metal-oxide-semiconductor M1 and the second metal-oxide-semiconductor M2 are N channel depletion type field effect transistor.The first triode Q1 is PNP pipe, and the second triode Q2 and the 3rd triode Q3 are NPN pipe.Under open state,, the in the situation that of K switch closure, the output voltage of storage battery BT is given single-chip microcomputer U1 power supply after the voltage stabilizing of voltage stabilizing circuit, so that single-chip microcomputer U1 enters normal operating conditions; After K switch disconnects, while entering off-mode, storage battery BT stops single-chip microcomputer U1 to power, single-chip microcomputer U1 quits work, until illumination condition is better, when the output voltage of solar panel SR is greater than the reverse breakdown voltage of the first voltage stabilizing didoe ZD1, the first voltage stabilizing didoe ZD1 is breakdown, the second triode Q2 and the first triode Q1 conducting successively, the output voltage of solar panel SR for single-chip microcomputer U1 power supply, makes single-chip microcomputer U1 enter normal operating conditions after the voltage stabilizing of voltage stabilizing circuit.Therefore,, even under off-mode, as long as better at illumination condition, when the output voltage of solar panel SR is greater than the reverse breakdown voltage of the first voltage stabilizing didoe ZD1, solar panel SR just can charge to storage battery, has improved charge efficiency.By optimizing charging circuit, improve charge efficiency, can not increase the volume of solar energy movable power supply, small volume, is easy to carry.
Voltage stabilizing circuit comprises the first capacitor C 1, the second capacitor C 2 and three-terminal voltage-stabilizing pipe U2.The input of three-terminal voltage-stabilizing pipe U2 connects respectively the other end of the 5th resistance R 5 and the negative pole of the 3rd diode D3.The input Vin of one termination three-terminal voltage-stabilizing pipe U2 of the first capacitor C 1, other end ground connection, the output end vo ut of three-terminal voltage-stabilizing pipe U2 connects respectively one end of the second capacitor C 2 and the other end of pin 1, the second capacitor C 2 of single-chip microcomputer U1 and the earth terminal GND ground connection of three-terminal voltage-stabilizing pipe U2.
Voltage sampling circuit comprises battery tension sample circuit and cell plate voltage sample circuit.Battery tension sample circuit is for gathering the voltage of storage battery BT and exporting storage battery sampled voltage and see the wiring Node B C of Fig. 1 to the pin 11(of single-chip microcomputer U1).Cell plate voltage sample circuit is for gathering the voltage of solar panel SR and exporting cell panel sampled voltage and see the wiring node SC of Fig. 1 to the pin 13(of single-chip microcomputer U1).Wherein, cell plate voltage sample circuit comprises the 9th resistance R 9, the tenth resistance R 10 and the 3rd capacitor C 3.The positive pole of one termination solar panel SR of the 9th resistance R 9, the other end connects respectively one end of the tenth resistance R 10 and one end of the 3rd capacitor C 3.The other end of the other end of the tenth resistance R 10 and the 3rd capacitor C 3 is ground connection respectively.The 9th resistance R 9 is connected the pin 13 of single-chip microcomputer U1 with the common port of the tenth resistance R 10, so that cell panel sampled voltage is delivered to single-chip microcomputer U1.Battery tension sample circuit comprises the 11 resistance R the 11, the 12 resistance R 12 and the 4th capacitor C 4.The positive pole of one termination storage battery BT of the 11 resistance R 11, the other end connects respectively one end of the 12 resistance R 12 and one end of the 4th capacitor C 4, and the other end of the other end of the 12 resistance R 12 and the 4th capacitor C 4 is ground connection respectively.The 11 resistance R 11 is connected the pin 11 of single-chip microcomputer U1 with the common port of the 12 resistance R 12, so that storage battery sampled voltage is delivered to single-chip microcomputer U1.
Single-chip microcomputer U1 prestores the first storage battery threshold voltage, the second storage battery threshold voltage and cell panel threshold voltage.When cell panel sampled voltage is during lower than cell panel threshold voltage, single-chip microcomputer U1 controls and turn-offs charging circuit, and solar panel SR stops storage battery BT to charge.Concrete, single-chip microcomputer U1 gathers cell panel sampled voltage and compares with the cell panel threshold voltage prestoring, at cell panel sampled voltage during lower than cell panel threshold voltage, single-chip microcomputer U1 is by the base stage of pin 12 output low level to the three triode Q3, the 3rd triode Q3 cut-off, the grid of the first metal-oxide-semiconductor M1 and the second metal-oxide-semiconductor M2 is high level, the first metal-oxide-semiconductor M1 and the second metal-oxide-semiconductor are in cut-off state, between solar panel SR and storage battery BT, cannot form closed-loop path, solar panel SR cannot charge to storage battery BT.When cell panel sampled voltage is higher than cell panel threshold voltage, and storage battery sampled voltage is during lower than the first storage battery threshold voltage, and single-chip microcomputer U1 controls conducting charging circuit, and solar panel SR starts storage battery BT to charge.Concrete, single-chip microcomputer U1 gathers cell panel sampled voltage and storage battery sampled voltage, and during higher than cell panel threshold voltage, storage battery sampled voltage is compared respectively to the first storage battery threshold voltage and the second storage battery threshold voltage at cell panel sampled voltage.When storage battery sampled voltage is during lower than the first storage battery threshold voltage, single-chip microcomputer U1 is by the base stage of pin 12 output high level to the three triode Q3, the 3rd triode Q3 conducting, the grounded-grid of the first metal-oxide-semiconductor M1 and the second metal-oxide-semiconductor M2, the first metal-oxide-semiconductor M1 and the second metal-oxide-semiconductor M2 conducting, between solar panel SR and storage battery BT, form closed-loop path, solar panel SR starts storage battery BT to charge.In like manner, when cell panel sampled voltage is higher than cell panel threshold voltage, and storage battery sampled voltage is during higher than the second storage battery threshold voltage, and single-chip microcomputer U1 controls and turn-offs charging circuit, and solar panel SR stops storage battery BT to charge; When cell panel sampled voltage is higher than cell panel threshold voltage, and storage battery sampled voltage is during higher than the first storage battery threshold voltage and lower than the second storage battery threshold voltage, single-chip microcomputer U1 controls charging circuit in hold mode, and the level of pin 12 outputs of single-chip microcomputer U1 is not done to change.In the present embodiment, the first metal-oxide-semiconductor M1 is in parallel with the second metal-oxide-semiconductor M2, has reduced the internal resistance of charge circuit, has reduced loss, has improved charge efficiency.
In the present embodiment, portable type solar energy portable power source also comprise discharge circuit with for gathering the discharging current of discharge circuit and exporting sample rate current to the discharging current Acquisition Circuit of described single-chip microcomputer.Discharge circuit comprises load socket CK, the 3rd metal-oxide-semiconductor M3, the 4th metal-oxide-semiconductor M4, the 13 resistance R the 13, the 14 resistance R the 14, the 15 resistance R the 15, the 16 resistance R 16, the 4th triode Q4 and the 3rd voltage stabilizing didoe ZD3.A binding post of load socket CK connects the outlet binding post of K switch, and another binding post connects and connects respectively the drain electrode of the 3rd metal-oxide-semiconductor M3 and the drain electrode of the 4th metal-oxide-semiconductor M4.The source electrode of the source electrode of the 3rd metal-oxide-semiconductor M3 and the 4th metal-oxide-semiconductor M4 is by the 13 resistance R 13 ground connection.The grid of the grid of the 3rd metal-oxide-semiconductor M3 and the 4th metal-oxide-semiconductor M4 connects one end of the 14 resistance R 14 and the negative pole of the 3rd voltage stabilizing didoe ZD3, the plus earth of the 3rd voltage stabilizing didoe ZD3.The other end of the 14 resistance R 14 connects respectively one end of the 15 resistance R 15 and the collector electrode of the 4th triode Q4, the outlet binding post of another termination K switch of the 15 resistance R 15, the grounded emitter of the 4th triode Q4, the pin 9(that base stage meets single-chip microcomputer U1 by the 16 resistance R 16 is shown in the wiring node LC in Fig. 1).Discharging current Acquisition Circuit comprises the 17 resistance R 17 and the 5th capacitor C 5.The source electrode of one termination the 3rd metal-oxide-semiconductor M3 of the 17 resistance R 17 and the source electrode of the 4th metal-oxide-semiconductor M4, the pin 8(that the other end meets single-chip microcomputer U1 is shown in the wiring node IC in Fig. 1), the 5th capacitor C 5 is connected in parallel in the two ends of the 13 resistance R 13.Wherein, the 3rd metal-oxide-semiconductor M3 and the 4th metal-oxide-semiconductor M4 are N channel depletion type field effect transistor, and the 4th triode Q4 is NPN pipe.Single-chip microcomputer also prestores first threshold electric current and Second Threshold electric current, and first threshold electric current is lower than described Second Threshold electric current.When sample rate current is during lower than first threshold electric current or higher than Second Threshold electric current; Single-chip Controlling is turn-offed discharge circuit; to turn-off discharge circuit in storage battery BT over-discharge can or discharging current when larger, thus the damage of effectively having protected storage battery BT and having avoided load.Concrete, discharging current sample circuit output sample rate current is to the pin 8 of single-chip microcomputer U1, single-chip microcomputer U1 compares first threshold electric current and Second Threshold electric current by this sample rate current, at sample rate current during lower than first threshold electric current or higher than Second Threshold electric current, pin 9 output low levels of single-chip microcomputer U1, make the 4th triode Q4 work in cut-off state, now, the grid of the 3rd metal-oxide-semiconductor M3 and the 4th metal-oxide-semiconductor M4 is high level, the 3rd metal-oxide-semiconductor M3 and the 4th metal-oxide-semiconductor M4 work in cut-off state, to turn-off discharge circuit.The 3rd metal-oxide-semiconductor M3 is in parallel with the 4th metal-oxide-semiconductor M4's, has reduced the resistance of discharge circuit, has reduced loss, has extended the use duration of portable type solar energy portable power source.
In the present embodiment, portable type solar energy portable power source also comprises fuse F1 and the 5th diode D5.Fuse F1 is connected in the positive pole of storage battery BT, and the positive pole of the 5th diode D5 connects the negative pole of storage battery BT, and the negative pole of the 5th diode D5 connects the positive pole of storage battery BT by fuse F1.In addition, portable type solar energy portable power source also comprises the first indicator light L1, the second indicator light L2, the 3rd indicator light L3, the 18 resistance R the 18, the 19 resistance R the 19, the 20 resistance R the 20, the 21 resistance R 21, the 6th capacitor C 6 and the 7th capacitor C 7.The first indicator light L1, the second indicator light L2 and the 3rd indicator light L3 are light-emitting diode, wherein, the first indicator light L1, the second indicator light L2 and the 3rd indicator light L3 positive pole meet the output end vo ut of three-terminal voltage-stabilizing pipe U2, and negative pole connects respectively pin 5, the pin 3 and pin 2 of single-chip microcomputer U1 by the 18 resistance R the 18, the 19 resistance R 19 and the 20 resistance R 20.The pin 4 of single-chip microcomputer U1 is successively by the 21 resistance R 21 and the 7th capacitor C 7 ground connection, and the 6th capacitor C 6 is connected between the pin 1 and pin 14 of single-chip microcomputer U1.The pin 6 of single-chip microcomputer U1, pin 7 and pin 10 are unsettled, do not define.
The above embodiment has only expressed several execution mode of the present invention, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection range of patent of the present invention should be as the criterion with claims.
Claims (3)
1. a portable type solar energy portable power source, is characterized in that, comprises solar panel, storage battery, single-chip microcomputer, charging circuit, voltage stabilizing circuit and voltage sampling circuit,
Described charging circuit comprises the first diode, the second diode, the 3rd diode, the 4th diode, switch, the first voltage stabilizing didoe, the first resistance, the second resistance, the 3rd resistance, the 4th resistance, the 5th resistance, the first triode, the second triode, the first metal-oxide-semiconductor, the second metal-oxide-semiconductor, the second voltage stabilizing didoe, the 3rd triode, the 6th resistance, the 7th resistance and the 8th resistance, the positive pole of described the first diode connects the positive pole of described solar panel, the negative pole of described the first diode connects respectively the inlet wire binding post of described switch and the positive pole of described storage battery, the minus earth of described storage battery, described the second diodes in parallel is connected in described the first diode, the outlet binding post of described switch connects the positive pole of described the 3rd diode, the negative pole of described the 3rd diode connects described voltage stabilizing circuit, the negative pole of described the first voltage stabilizing didoe, the source electrode of one end of described the first resistance and described the first triode connects respectively the positive pole of described solar panel, the positive pole of described the first voltage stabilizing didoe connects one end of described the second resistance, the other end of described the second resistance connects respectively the base stage of described the second triode and one end of described the 3rd resistance, the emitter of the other end of described the 3rd resistance and described the second triode is ground connection respectively, the drain electrode of described the second triode connects one end of described the 4th resistance, the other end of described the 4th resistance connects respectively the other end and described first transistor base of described the first resistance, the collector electrode of described the first triode connects the positive pole of described the 4th diode, the negative pole of described the 4th diode connects one end of described the 5th resistance, voltage stabilizing circuit described in another termination of described the 5th resistance, the drain electrode of described the first metal-oxide-semiconductor and described the second metal-oxide-semiconductor connects respectively the negative pole of described solar panel, described the first metal-oxide-semiconductor and described the second metal-oxide-semiconductor source electrode ground connection respectively, the negative pole of the first diode described in one termination of described the 6th resistance, the other end connects respectively one end of described the 7th resistance, the grid of described the first metal-oxide-semiconductor, the negative pole of the grid of described the second metal-oxide-semiconductor and described the second zener diode, the plus earth of described the second zener diode, the collector electrode of the 3rd triode described in another termination of described the 7th resistance, the grounded emitter of described the 3rd triode, grid connects described single-chip microcomputer by described the 8th resistance,
Described voltage stabilizing circuit comprises the first electric capacity, the second electric capacity and three-terminal voltage-stabilizing pipe, the input of described three-terminal voltage-stabilizing pipe connects respectively the other end of described the 5th resistance and the negative pole of described the 3rd diode, the input of three-terminal voltage-stabilizing pipe described in one termination of described the first electric capacity, other end ground connection, the output of described three-terminal voltage-stabilizing pipe connects respectively one end and the described single-chip microcomputer of described the second electric capacity, the earth terminal ground connection of the other end of described the second electric capacity and described three-terminal voltage-stabilizing pipe;
Described voltage sampling circuit comprises battery tension sample circuit and cell plate voltage sample circuit, described battery tension sample circuit is for gathering the voltage of described storage battery and exporting storage battery sampled voltage to single-chip microcomputer, described cell plate voltage sample circuit is for gathering the voltage of described solar panel and exporting cell panel sampled voltage to single-chip microcomputer, described cell plate voltage sample circuit comprises the 9th resistance, the tenth resistance and the 3rd electric capacity, the positive pole of solar panel described in one termination of described the 9th resistance, the other end connects respectively one end of described the tenth resistance and one end of described the 3rd electric capacity, the other end of the other end of described the tenth resistance and described the 3rd electric capacity is ground connection respectively, described battery tension sample circuit comprises the 11 resistance, the 12 resistance and the 4th electric capacity, the positive pole of storage battery described in one termination of described the 11 resistance, the other end connects respectively one end of described the 12 resistance and one end of described the 4th electric capacity, the other end of the other end of described the 12 resistance and described the 4th electric capacity is ground connection respectively,
Described single-chip microcomputer prestores the first storage battery threshold voltage, the second storage battery threshold voltage and cell panel threshold voltage, when described cell panel sampled voltage is during lower than described cell panel threshold voltage, described Single-chip Controlling is turn-offed described charging circuit, and described solar panel stops described charge in batteries; When described cell panel sampled voltage is higher than described cell panel threshold voltage, and described storage battery sampled voltage is during lower than described the first storage battery threshold voltage, charging circuit described in described Single-chip Controlling conducting, described solar panel starts described charge in batteries; When described cell panel sampled voltage is higher than described cell panel threshold voltage, and described storage battery sampled voltage is during higher than described the second storage battery threshold voltage, described Single-chip Controlling is turn-offed described charging circuit, and described solar panel stops described charge in batteries; When described cell panel sampled voltage is higher than described cell panel threshold voltage, and described storage battery sampled voltage is during higher than described the first storage battery threshold voltage and lower than described the second storage battery threshold voltage, charging circuit is in hold mode described in described Single-chip Controlling; Described the first storage battery threshold voltage is lower than described the second storage battery threshold voltage.
2. portable type solar energy portable power source according to claim 1, is characterized in that, also comprise discharge circuit with for gathering the discharging current of discharge circuit and exporting sample rate current to the discharging current Acquisition Circuit of described single-chip microcomputer,
Described discharge circuit comprises load socket, the 3rd metal-oxide-semiconductor, the 4th metal-oxide-semiconductor, the 13 resistance, the 14 resistance, the 15 resistance, the 16 resistance, the 4th triode and the 3rd voltage stabilizing didoe, a binding post of described load socket connects the outlet binding post of described switch, another binding post connects and connects respectively the drain electrode of described the 3rd metal-oxide-semiconductor and the drain electrode of described the 4th metal-oxide-semiconductor, the source electrode of the source electrode of described the 3rd metal-oxide-semiconductor and described the 4th metal-oxide-semiconductor is by described the 13 grounding through resistance, the grid of the grid of described the 3rd metal-oxide-semiconductor and described the 4th metal-oxide-semiconductor connects one end of described the 14 resistance and the negative pole of described the 3rd voltage stabilizing didoe, the plus earth of described the 3rd voltage stabilizing didoe, the other end of described the 14 resistance connects respectively one end of described the 15 resistance and the collector electrode of described the 4th triode, the outlet binding post of switch described in another termination of described the 15 resistance, the grounded emitter of described the 4th triode, base stage connects described single-chip microcomputer by described the 16 resistance,
Described discharging current Acquisition Circuit comprises the 17 resistance and the 5th electric capacity, the source electrode of the 3rd metal-oxide-semiconductor and the source electrode of described the 4th metal-oxide-semiconductor described in one termination of described the 17 resistance, single-chip microcomputer described in another termination, described the 5th Capacitance parallel connection is connected in the two ends of described the 13 resistance;
Described single-chip microcomputer also prestores first threshold electric current and Second Threshold electric current, described first threshold electric current is lower than described Second Threshold electric current, when described sample rate current is during lower than described first threshold electric current or higher than described Second Threshold electric current, described Single-chip Controlling is turn-offed described discharge circuit.
3. portable type solar energy portable power source according to claim 1, it is characterized in that, also comprise fuse and the 5th diode, described fuse is connected in the positive pole of described storage battery, the positive pole of described the 5th diode connects the negative pole of described storage battery, and the negative pole of described the 5th diode connects the positive pole of described storage battery by described fuse.
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| CN201310072727.6A CN103117584B (en) | 2013-03-07 | 2013-03-07 | Portable solar mobile power supply |
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| CN103117584B true CN103117584B (en) | 2014-10-29 |
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| CN104953671A (en) * | 2015-07-08 | 2015-09-30 | 安徽农业大学 | Power self-management device for agricultural tracked robot serving as mobile node of Internet of Things |
| CN105515163B (en) * | 2016-01-25 | 2017-08-18 | 江苏好的节能光电科技有限公司 | Solar mobile power box |
| CN107069927B (en) * | 2017-06-12 | 2019-09-10 | 深圳源创智能照明有限公司 | Power supply unit and lighting system |
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| CN102005798A (en) * | 2010-12-13 | 2011-04-06 | 山东电力集团公司泰安供电公司 | Solar charging circuit |
| CN201918713U (en) * | 2010-12-29 | 2011-08-03 | 广东易事特电源股份有限公司 | An anti-reverse connection protection circuit for a solar charge controller |
| CN102420546A (en) * | 2011-12-20 | 2012-04-18 | 山东大学 | Solar charging device based on singlechip |
| CN202475887U (en) * | 2012-03-08 | 2012-10-03 | 孝感市辉皇世纪照明电器有限公司 | LED (light-emitting diode) lamp control circuit powered by solar energy |
| CN203135502U (en) * | 2013-03-07 | 2013-08-14 | 浙江明烁电子科技有限公司 | Portable solar mobile power supply |
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