CN203086215U - Solar movable power supply - Google Patents
Solar movable power supply Download PDFInfo
- Publication number
- CN203086215U CN203086215U CN 201320084411 CN201320084411U CN203086215U CN 203086215 U CN203086215 U CN 203086215U CN 201320084411 CN201320084411 CN 201320084411 CN 201320084411 U CN201320084411 U CN 201320084411U CN 203086215 U CN203086215 U CN 203086215U
- Authority
- CN
- China
- Prior art keywords
- resistance
- storage battery
- circuit
- voltage
- chip microcomputer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn - After Issue
Links
- 239000004065 semiconductor Substances 0.000 claims abstract description 68
- 238000005070 sampling Methods 0.000 claims abstract description 21
- 230000000087 stabilizing effect Effects 0.000 claims description 9
- 238000007599 discharging Methods 0.000 abstract description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 229910044991 metal oxide Inorganic materials 0.000 abstract 1
- 150000004706 metal oxides Chemical class 0.000 abstract 1
- 239000003990 capacitor Substances 0.000 description 22
- 238000010586 diagram Methods 0.000 description 3
- 230000005669 field effect Effects 0.000 description 3
- 238000005286 illumination Methods 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Images
Landscapes
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The utility model discloses a solar movable power supply, which comprises a singlechip, a storage battery, a solar panel, a charging circuit, a reverse connection protection circuit and a voltage sampling circuit, wherein the charging circuit is used for controlling the solar panel to charge the storage battery; and the voltage sampling circuit is used for acquiring the output voltage of the storage battery and the solar panel and outputting storage battery sampled voltage and the solar panel sampled voltage. According to the solar movable power supply, a first MOS (Metal Oxide Semiconductor) tube and a second MOS tube are adopted in the charging circuit, and are controlled by using the singlechip, so that reverse charging can be effectively avoided, and the solar movable power supply is protected. Meanwhile, the reverse connection protection circuit can be used for preventing the storage battery from discharging continuously during reverse connection, so that the storage battery is protected. Moreover, the singlechip is built together with an ordinary analog circuit, so that the circuit structure is simplified, the reliability of the circuit is improved, and the production cost is lowered.
Description
Technical field
The utility model relates to the portable power source technical field, particularly relates to a kind of solar energy movable power supply.
Background technology
A kind of portable charger that integrates power supply and charge function of portable power source, characteristics such as have usually that capacity is big, purposes is many, volume is little, the life-span is long and safe and reliable can be 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, the portable power source of solar panel occurred having, thereby in use can reach the purpose of supplying electric weight by the sunlight charging.
But the voltage that produces owing to solar panel easily produces reversed charge along with the change of intensity of illumination changes when the spread of voltage of generation, voltage are low, shortened the service time of portable power source even may damage portable power source.Simultaneously, when manufacturing has the portable power source of solar panel with use, the output of solar panel and the electrode of storage battery can be connect instead unavoidably, make battery discharging even damage storage battery.In addition, the general portable power source with solar panel adopts pure analog circuit to build, and circuit structure is complicated, and the circuit operational reliability is relatively poor, and production cost is higher.
The utility model content
Based on this, be necessary at general portable power source with solar panel easily produce reversed charge, electrode connect cause battery discharging inverse time in addition damage storage battery and circuit structure than complicated problems, provide a kind of and can not produce reversed charge, connect the inverse time storage battery and do not discharged and the better simply solar energy movable power supply of circuit structure.
A kind of solar energy movable power supply; comprise single-chip microcomputer, storage battery, solar panel, charging circuit, reverse-connection protection circuit and voltage sampling circuit; described charging circuit control solar panel is to the charging of storage battery; described voltage sampling circuit is gathered the output voltage of described storage battery and described solar panel and is exported the storage battery sampled voltage and the cell panel sampled voltage
Described charging circuit comprises first metal-oxide-semiconductor, second metal-oxide-semiconductor, first electric capacity, first triode, first resistance, second resistance and the 3rd resistance, the drain electrode of described first metal-oxide-semiconductor connects the positive pole of described solar panel, source electrode connects the source electrode of described second metal-oxide-semiconductor respectively, one end of first resistance and an end of first electric capacity, grid connects the other end of described first resistance respectively, the other end of described first electric capacity, one end of the grid of described second metal-oxide-semiconductor and described second resistance, the drain electrode of described second metal-oxide-semiconductor connects the positive pole of described storage battery, the collector electrode of described first triode of another termination of described second resistance, the base stage of described first triode connects described single-chip microcomputer by described the 3rd resistance, and the emitter of described first triode and the negative pole of described solar panel be ground connection respectively;
Described reverse-connection protection circuit comprises the 3rd metal-oxide-semiconductor, the 4th resistance and the 5th resistance, the negative pole of described storage battery connects the drain electrode of described the 3rd metal-oxide-semiconductor, the source electrode of described the 3rd metal-oxide-semiconductor connects an end and the ground connection of described the 4th resistance respectively, grid connects the other end of described the 4th resistance and an end of described the 5th resistance respectively, the positive pole of the described storage battery of another termination of described the 5th resistance;
Described voltage sampling circuit comprises the 6th resistance, the 7th resistance, second electric capacity, first diode, the 8th resistance, the 9th resistance, the 3rd electric capacity and second diode, the positive pole of the described storage battery of one termination of described the 6th resistance, the other end connects an end of described second electric capacity respectively, one end of described the 7th resistance and the negative pole of described first diode, the positive pole of the described solar panel of one termination of described the 8th resistance, the other end connects an end of described the 9th resistance respectively, one end of described the 3rd electric capacity and the negative pole of described second triode, the other end of described second electric capacity, the other end of the 7th resistance, the positive pole of first diode, the other end of the 9th resistance, the positive pole of the other end of the 3rd electric capacity and described second diode is ground connection respectively; The public connecting end of the negative pole of described the 6th resistance, second electric capacity, the 7th resistance and first diode is exported described storage battery sampled voltage to described single-chip microcomputer; The public connecting end of the negative pole of described the 8th resistance, the 9th resistance, the 3rd electric capacity and second diode is exported described cell panel sampled voltage to described single-chip microcomputer;
Described single-chip microcomputer prestores the first storage battery threshold voltage, the second storage battery threshold voltage and cell panel threshold voltage, and when described cell panel sampled voltage was lower than described cell panel threshold voltage, described Single-chip Controlling was turn-offed described charging circuit; When described cell panel is higher than described cell panel threshold voltage and described storage battery sampled voltage and is higher than the described first storage battery threshold voltage, the described charging circuit of described Single-chip Controlling conducting, described solar panel begins described charge in batteries, when described storage battery sampled voltage is higher than the described second storage battery threshold voltage, described Single-chip Controlling is turn-offed described charging circuit, and described solar panel stops described charge in batteries; Wherein, the described first storage battery threshold voltage is lower than the described second storage battery threshold voltage.
Therein among embodiment; also comprise discharge circuit; described discharge circuit comprises the discharge major loop; discharge protection circuit and current sampling circuit; described single-chip microcomputer also prestores the first threshold electric current and second threshold current; described first threshold electric current is lower than described second threshold current; described current sampling circuit is gathered the electric current in the described discharge major loop and is exported sample rate current to described single-chip microcomputer; described discharge protection circuit described sample rate current be lower than described first threshold electric current or when described sample rate current is higher than described second threshold current control turn-off described major loop
Described discharge major loop comprises load socket, the 4th metal-oxide-semiconductor and the tenth resistance, one binding post of described load socket connects the positive pole of described storage battery, another binding post connects the drain electrode of described the 4th metal-oxide-semiconductor, the source electrode of described the 4th metal-oxide-semiconductor connects an end of described the tenth resistance, the other end ground connection of described the tenth resistance;
Described discharge protection circuit comprises the 11 resistance, the 12 resistance, the 13 resistance and second triode, the positive pole of the described storage battery of one termination of described the 11 resistance, the other end connects an end of described the 12 resistance and the grid of described the 4th metal-oxide-semiconductor respectively, the collector electrode of described second triode of another termination of described the 12 resistance, the base stage of described second triode connects described single-chip microcomputer by described the 13 resistance, grounded emitter;
Described current sampling circuit comprises the 14 resistance and the 4th electric capacity, and described the 4th electric capacity is connected in parallel in the two ends of described the tenth resistance, the source electrode of described the 4th metal-oxide-semiconductor of a termination of described the 14 resistance, the described single-chip microcomputer of another termination.
Therein among embodiment, described solar energy movable power supply comprises that also the charged state that is used to select described solar energy movable power supply to enter state to be charged or withdraws from state to be charged selects circuit,
Described charged state selects circuit to comprise the 15 resistance and selector button, the described single-chip microcomputer of a termination of described the 15 resistance, and the other end is by described selector button ground connection.
Therein among embodiment, described solar energy movable power supply also comprises and is used to indicate described solar energy movable power supply to enter the indicating circuit of charged state, overcharge condition, over-discharge state and overcurrent condition,
Described indicating circuit comprises charging indicator light, the indicator light that overcharges, overdischarge indicator light, over current lamp, the 16 resistance, the 17 resistance, the 18 resistance and the 19 resistance, described charging indicator light connects described single-chip microcomputer by described the 16 resistance, the described indicator light that overcharges connects described single-chip microcomputer by described the 17 resistance, described overdischarge indicator light connects described single-chip microcomputer by described the 18 resistance, and described over current lamp connects described single-chip microcomputer by described the 19 resistance.
Among embodiment, also comprise voltage stabilizing circuit therein, described voltage stabilizing circuit is used to the work of described single-chip microcomputer that stable output voltage is provided,
Described voltage stabilizing circuit comprises the 5th electric capacity, the 6th electric capacity and three-terminal voltage-stabilizing pipe, the positive pole of the described storage battery of input termination of described three-terminal voltage-stabilizing pipe, the described single-chip microcomputer of output termination, earth terminal ground connection, the input of the described three-terminal voltage-stabilizing pipe of one termination of described the 5th electric capacity, other end ground connection, the output of the described three-terminal voltage-stabilizing pipe of a termination of described the 6th electric capacity, other end ground connection.
Among embodiment, also comprise fuse therein, described fuse is connected in the current circuit of described storage battery.
Above-mentioned solar energy movable power supply adopts first metal-oxide-semiconductor and second metal-oxide-semiconductor and controls by single-chip microcomputer in the charging circuit, can effectively avoid reversed charge, has protected solar energy movable power supply.Simultaneously, reverse-connection protection circuit can have been protected storage battery connecing inverse time blocking-up storage battery continuation discharge.In addition, single-chip microcomputer and common analog circuit are built, simplified circuit structure, improved the reliability of circuit, reduced production cost.
Description of drawings
Fig. 1 is the charging circuit schematic diagram of solar energy movable power supply of the present utility model;
Fig. 2 is the reverse-connection protection circuit of solar energy movable power supply of the present utility model and the schematic diagram of discharge circuit;
Fig. 3 is the schematic diagram of the voltage sampling circuit of solar energy movable power supply of the present utility model;
Fig. 4 is the catenation principle figure of voltage stabilizing circuit, indicating circuit, state selecting circuit and the single-chip microcomputer of solar energy movable power supply of the present utility model.
Embodiment
Below in conjunction with the drawings and specific embodiments the utility model is elaborated.
As Fig. 1, Fig. 2, Fig. 3 and shown in Figure 4, in one embodiment, a kind of solar energy movable power supply comprises single-chip microcomputer U1, storage battery BT, solar panel SR, charging circuit, reverse-connection protection circuit and voltage sampling circuit.Charging circuit is used to control the charging of solar panel SR to storage battery BT, and voltage sampling circuit is used to gather the output voltage of storage battery BT and solar panel SR and exports the storage battery sampled voltage and the cell panel sampled voltage.The single-chip microcomputer U1 that present embodiment adopts is the PIC16F676 single-chip microcomputer.
As shown in Figure 1, charging circuit comprises the first metal-oxide-semiconductor M1, the second metal-oxide-semiconductor M2, first capacitor C 1, the first triode Q1, first resistance R 1, second resistance R 2 and the 3rd resistance R 3.The drain electrode of the first metal-oxide-semiconductor M1 connects the positive pole of solar panel SR, source electrode connects the source electrode of the second metal-oxide-semiconductor M2, an end of first resistance R 1 and an end of first capacitor C 1 respectively, and grid connects the other end of first resistance R 1, the other end of first capacitor C 1, the grid of the second metal-oxide-semiconductor M2 and an end of second resistance R 2 respectively.The drain electrode of the second metal-oxide-semiconductor M2 is used to connect the positive pole (see Fig. 1 and Fig. 2 wiring Node B+) of storage battery BT, the collector electrode of another termination first triode Q1 of second resistance R 2, the base stage of the first triode Q1 meets single-chip microcomputer U1 by the 3rd resistance R 3, in the present embodiment, the pin 9(that the base stage of the first triode Q1 meets single-chip microcomputer U1 by the 3rd resistance R 3 sees the wiring node CSW of Fig. 1 and Fig. 4), the negative pole of the emitter of the first triode Q1 and solar panel SR is ground connection respectively.Wherein, the first metal-oxide-semiconductor M1 and second metal-oxide-semiconductor all adopt the P-channel enhancement type field-effect transistor, the first triode Q1 is the NPN pipe, in charging process, single-chip microcomputer U1 controls the first triode Q1 and is in off state, grid-source voltage of the first metal-oxide-semiconductor M1 and the second metal-oxide-semiconductor M2 reaches cut-in voltage, form the P-type conduction raceway groove, when the output current of solar panel SR is big, the flow through drain electrode of the first metal-oxide-semiconductor M1 and the PN junction of source electrode and the avalanche breakdown second metal-oxide-semiconductor M2 of electric current enters storage battery BT, thus accumulators BT charging.When the output voltage of solar panel SR slightly fluctuates because of illumination condition changes, the backflow of the PN junction electric current capable of blocking of the first metal-oxide-semiconductor M1, thus avoided the generation of reversed charge phenomenon.
As shown in Figure 2, reverse-connection protection circuit comprises the 3rd metal-oxide-semiconductor M3, the 4th resistance R 4 and the 5th resistance R 5.The negative pole of storage battery BT connects the drain electrode of the 3rd metal-oxide-semiconductor M3, the source electrode of the 3rd metal-oxide-semiconductor M3 connects an end and the ground connection of the 4th resistance R 4 respectively, grid connects the other end of the 4th resistance R 4 and an end of the 5th resistance R 5 respectively, the positive pole of another termination storage battery BT of the 5th resistance R 5.Wherein.The 3rd metal-oxide-semiconductor M3 is a n channel enhancement type field effect transistor.Before solar panel SR charges to storage battery BT, the positive pole of solar panel SR need link to each other with the positive pole of storage battery BT (see among Fig. 1 and Fig. 2 wiring Node B+), at this moment, the 3rd metal-oxide-semiconductor M3 grid-source voltage reaches cut-in voltage, form N type conducting channel, solar panel SR begins storage battery BT is charged.When the output of solar panel SR and the electrode of storage battery BT connect inverse time; promptly when the negative pole of solar panel SR links to each other with the positive pole of storage battery BT; grid-source voltage of the 3rd metal-oxide-semiconductor M3 is zero; can not form conducting channel; the 3rd metal-oxide-semiconductor M3 is in cut-off state; block the discharge of storage battery BT, effectively protected storage battery BT.
As shown in Figure 3, voltage sampling circuit comprises the 6th resistance R 6, the 7th resistance R 7, second capacitor C 2, the first diode D1, the 8th resistance R 8, the 9th resistance R 9, the 3rd capacitor C 3 and the second diode D2.One end of the 6th resistance R 6 is used to connect the positive pole (see Fig. 2 and Fig. 3 wiring Node B+) of storage battery BT, and the other end connects an end of second capacitor C 2, an end of the 7th resistance R 7 and the negative pole of the first diode D1 respectively.The positive pole of one termination solar panel SR of the 8th resistance R 8 (seeing the wiring node S+ of Fig. 1 and Fig. 3), the other end connects an end of the 9th resistance R 9, an end of the 3rd capacitor C 3 and the negative pole of the second triode Q2 respectively.The positive pole of the other end of the other end of the positive pole of the other end of the other end of second capacitor C 2, the 7th resistance R 7, the first diode D1, the 9th resistance R 9, the 3rd capacitor C 3 and the second diode D2 is ground connection respectively.The public connecting end output storage battery sampled voltage of the negative pole of the 6th resistance R 6, second capacitor C 2, the 7th resistance R 7 and the first diode D1 is to single-chip microcomputer U1, in the present embodiment, the pin 10(that the storage battery sampled voltage is delivered to single-chip microcomputer U1 sees the wiring Node B C of Fig. 3 and Fig. 2).The public connecting end output cell panel sampled voltage of the negative pole of the 8th resistance R 8, the 9th resistance R 9, the 3rd capacitor C 3 and the second diode D2 is to single-chip microcomputer U1, in the present embodiment, the pin 8(that the cell panel sampled voltage is delivered to single-chip microcomputer U1 sees the wiring node SC of Fig. 3 and Fig. 4).
As shown in Figure 4, single-chip microcomputer U1 prestores the first storage battery threshold voltage, the second storage battery threshold voltage and cell panel threshold voltage.When the cell panel sampled voltage is lower than the cell panel threshold voltage, the base stage of pin 9 output high level to the first triode Q1 of single-chip microcomputer U1, the first triode Q1 conducting, grid-source voltage of the first metal-oxide-semiconductor M1 and the second metal-oxide-semiconductor M2 is zero, the first metal-oxide-semiconductor M1 and the second metal-oxide-semiconductor M2 are in cut-off state, thereby charging circuit is turned off.When cell panel is higher than cell panel threshold voltage and storage battery sampled voltage and is higher than the first storage battery threshold voltage, the base stage of pin 9 output low level to the first triode Q1 of single-chip microcomputer U1, the first triode Q1 turn-offs, grid-the source voltage of the first metal-oxide-semiconductor M1 and second metal-oxide-semiconductor reaches cut-in voltage, charging circuit is switched on, solar panel SR begins storage battery BT is charged, when the storage battery sampled voltage is higher than the second storage battery threshold voltage, single-chip microcomputer U1 pin 9 output high level, charging circuit is turn-offed in control, thereby makes solar panel SR stop storage battery BT is charged; Wherein, the first storage battery BT threshold voltage is lower than the second storage battery threshold voltage.
As shown in Figure 2, in specific embodiment, solar energy movable power supply also comprises discharge circuit.Discharge circuit comprises discharge major loop, discharge protection circuit and current sampling circuit.Single-chip microcomputer U1 also prestores the first threshold electric current and second threshold current; the first threshold electric current is lower than second threshold current; current sampling circuit is used for gathering the electric current of discharge major loop and exporting sample rate current to single-chip microcomputer U1, and discharge protection circuit is used for being lower than the first threshold electric current or control shutoff major loop when sample rate current is higher than second threshold current at sample rate current.
The discharge major loop comprises load socket CK, the 4th metal-oxide-semiconductor M4 and the tenth resistance R 10.The binding post of load socket CK connects the positive pole of storage battery BT, and another binding post connects the drain electrode of the 4th metal-oxide-semiconductor M4, and the source electrode of the 4th metal-oxide-semiconductor M4 connects an end of the tenth resistance R 10, the other end ground connection of the tenth resistance R 10.Discharge protection circuit comprises the 11 resistance R the 11, the 12 resistance R the 12, the 13 resistance R 13 and the second triode Q2.The positive pole of one termination storage battery BT of the 11 resistance R 11, the other end connects an end of the 12 resistance R 12 and the grid of the 4th metal-oxide-semiconductor M4 respectively, the collector electrode of another termination second triode Q2 of the 12 resistance R 12, the base stage of the second triode Q2 meets single-chip microcomputer U1 by the 13 resistance R 13, grounded emitter, in the present embodiment, the pin 13(that the base stage of the second triode Q2 meets single-chip microcomputer U1 by the 13 resistance R 13 sees the wiring node LSW of Fig. 2 and Fig. 3).Current sampling circuit comprises the 14 resistance R 14 and the 4th capacitor C 4.The 4th capacitor C 4 is connected in parallel in the two ends of the tenth resistance R 10, the source electrode of a termination the 4th metal-oxide-semiconductor M4 of the 14 resistance R 14, and the other end meets single-chip microcomputer U1, the pin 11(that meets single-chip microcomputer U1 usually sees the wiring node IS of Fig. 2 and Fig. 4).Wherein, the 4th metal-oxide-semiconductor M3 is a n channel enhancement type field effect transistor, and the second triode Q2 is the NPN pipe.When the sample rate current of gathering by pin 11 as single-chip microcomputer U1 is lower than the first threshold electric current that prestores, single-chip microcomputer U1 is zero by grid-source voltage of the pin 13 output high level control conductings second triode Q2 the 4th metal-oxide-semiconductor M4, the 4th metal-oxide-semiconductor M4 is in cut-off state, load socket CK is opened circuit, and has effectively avoided the overdischarge of storage battery BT.In like manner, when sample rate current was higher than second threshold current, single-chip microcomputer U1 controlled the 4th metal-oxide-semiconductor M4 by the second triode Q2 and is in cut-off state, and load socket CK is opened circuit, and has avoided the damage of the excessive load that causes of discharging current effectively.
As shown in Figure 4, solar energy movable power supply also comprises charged state selection circuit, indicating circuit and voltage stabilizing circuit.Charged state is selected circuit to be used to select solar energy movable power supply to enter state to be charged or is withdrawed from state to be charged.Charged state selects circuit to comprise the 15 resistance R 15 and selector button K, and a termination single-chip microcomputer U1 of the 15 resistance R 15 connects the pin 2 of single-chip microcomputer U1 usually, and the other end is by selector button K ground connection.Usually, have only by selector button K and select to enter state to be charged, single-chip microcomputer U1 just understands operate as normal, could control the operate as normal of charging circuit and discharge circuit.
Indicating circuit is used to indicate solar energy movable power supply to enter charged state, overcharge condition, over-discharge state and overcurrent condition.Indicating circuit comprises charging indicator light L1, the indicator light L2 that overcharges, overdischarge indicator light L3, over current lamp L4, the 16 resistance R the 16, the 17 resistance R the 17, the 18 resistance R 18 and the 19 resistance R 19.Charging indicator light L1 connects the pin 3 of single-chip microcomputer U1 by the 16 resistance R 16, is used to indicate solar energy movable power supply to enter charged state.The indicator light L2 that overcharges connects the pin 5 of single-chip microcomputer U1 by the 17 resistance R 17, is used to indicate solar energy movable power supply charging overfill.Overdischarge indicator light L3 connects the pin 6 of single-chip microcomputer U1 by the 18 resistance R 18, is used to indicate the discharging current of solar energy movable power supply lower, should stop discharge.Over current lamp L4 connects the pin 7 of single-chip microcomputer U1 by the 19 resistance R 19, is used to indicate the discharging current of solar energy movable power supply bigger, may burn out load.In addition, the pin 4 of single-chip microcomputer U1 is successively by the 20 resistance R 20 and the 7th capacitor C 7 ground connection.
Voltage stabilizing circuit is used to the work of single-chip microcomputer U1 that stable output voltage is provided.Voltage stabilizing circuit comprises the 5th capacitor C 5, the 6th capacitor C 6 and three-terminal voltage-stabilizing pipe U2.The input Vin of three-terminal voltage-stabilizing pipe U2 is used to connect the positive pole (see Fig. 2 and Fig. 4 wiring Node B+) of storage battery BT, output end vo ut is respectively applied for the pin 1 that meets single-chip microcomputer U1, an end of the 8th capacitor C 8 and an end of the 9th capacitor C 9, and the other end of the other end of the 8th capacitor C 8, the 9th capacitor C 9 and the pin of single-chip microcomputer U1 14 be ground connection respectively.The earth terminal ground connection of three-terminal voltage-stabilizing pipe U2, the input Vin of a termination three-terminal voltage-stabilizing pipe of the 5th capacitor C 5, other end ground connection, the output end vo ut of a termination three-terminal voltage-stabilizing pipe of the 6th capacitor C 6, other end ground connection.In addition, the pin 12 of single-chip microcomputer U1 is unsettled, does not do definition at this.Solar energy movable power supply also comprises fuse F1 in addition, and fuse F1 is connected in the current circuit of storage battery BT.
Above-mentioned solar energy movable power supply adopts the first metal-oxide-semiconductor M1 and the second metal-oxide-semiconductor M2 and controls by single-chip microcomputer U1 in the charging circuit, can effectively avoid reversed charge, has protected solar energy movable power supply.Simultaneously, reverse-connection protection circuit can have been protected storage battery BT connecing inverse time blocking-up storage battery BT continuation discharge.In addition, single-chip microcomputer U1 and common analog circuit are built, circuit structure is simpler, has improved the reliability of circuit, has reduced production cost.
The above embodiment has only expressed several execution mode of the present utility model, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the utility model claim.Should be pointed out that for the person of ordinary skill of the art under the prerequisite that does not break away from the utility model design, can also make some distortion and improvement, these all belong to protection range of the present utility model.Therefore, the protection range of the utility model patent should be as the criterion with claims.
Claims (6)
1. solar energy movable power supply; it is characterized in that; comprise single-chip microcomputer, storage battery, solar panel, charging circuit, reverse-connection protection circuit and voltage sampling circuit; described charging circuit control solar panel is to the charging of storage battery; described voltage sampling circuit is gathered the output voltage of described storage battery and described solar panel and is exported the storage battery sampled voltage and the cell panel sampled voltage
Described charging circuit comprises first metal-oxide-semiconductor, second metal-oxide-semiconductor, first electric capacity, first triode, first resistance, second resistance and the 3rd resistance, the drain electrode of described first metal-oxide-semiconductor connects the positive pole of described solar panel, source electrode connects the source electrode of described second metal-oxide-semiconductor respectively, one end of first resistance and an end of first electric capacity, grid connects the other end of described first resistance respectively, the other end of described first electric capacity, one end of the grid of described second metal-oxide-semiconductor and described second resistance, the drain electrode of described second metal-oxide-semiconductor connects the positive pole of described storage battery, the collector electrode of described first triode of another termination of described second resistance, the base stage of described first triode connects described single-chip microcomputer by described the 3rd resistance, and the emitter of described first triode and the negative pole of described solar panel be ground connection respectively;
Described reverse-connection protection circuit comprises the 3rd metal-oxide-semiconductor, the 4th resistance and the 5th resistance, the negative pole of described storage battery connects the drain electrode of described the 3rd metal-oxide-semiconductor, the source electrode of described the 3rd metal-oxide-semiconductor connects an end and the ground connection of described the 4th resistance respectively, grid connects the other end of described the 4th resistance and an end of described the 5th resistance respectively, the positive pole of the described storage battery of another termination of described the 5th resistance;
Described voltage sampling circuit comprises the 6th resistance, the 7th resistance, second electric capacity, first diode, the 8th resistance, the 9th resistance, the 3rd electric capacity and second diode, the positive pole of the described storage battery of one termination of described the 6th resistance, the other end connects an end of described second electric capacity respectively, one end of described the 7th resistance and the negative pole of described first diode, the positive pole of the described solar panel of one termination of described the 8th resistance, the other end connects an end of described the 9th resistance respectively, one end of described the 3rd electric capacity and the negative pole of described second triode, the other end of described second electric capacity, the other end of the 7th resistance, the positive pole of first diode, the other end of the 9th resistance, the positive pole of the other end of the 3rd electric capacity and described second diode is ground connection respectively; The public connecting end of the negative pole of described the 6th resistance, second electric capacity, the 7th resistance and first diode is exported described storage battery sampled voltage to described single-chip microcomputer; The public connecting end of the negative pole of described the 8th resistance, the 9th resistance, the 3rd electric capacity and second diode is exported described cell panel sampled voltage to described single-chip microcomputer;
Described single-chip microcomputer prestores the first storage battery threshold voltage, the second storage battery threshold voltage and cell panel threshold voltage, and when described cell panel sampled voltage was lower than described cell panel threshold voltage, described Single-chip Controlling was turn-offed described charging circuit; When described cell panel is higher than described cell panel threshold voltage and described storage battery sampled voltage and is higher than the described first storage battery threshold voltage, the described charging circuit of described Single-chip Controlling conducting, described solar panel begins described charge in batteries, when described storage battery sampled voltage is higher than the described second storage battery threshold voltage, described Single-chip Controlling is turn-offed described charging circuit, and described solar panel stops described charge in batteries; Wherein, the described first storage battery threshold voltage is lower than the described second storage battery threshold voltage.
2. solar energy movable power supply according to claim 1; it is characterized in that; also comprise discharge circuit; described discharge circuit comprises the discharge major loop; discharge protection circuit and current sampling circuit; described single-chip microcomputer also prestores the first threshold electric current and second threshold current; described first threshold electric current is lower than described second threshold current; described current sampling circuit is gathered the electric current in the described discharge major loop and is exported sample rate current to described single-chip microcomputer; described discharge protection circuit described sample rate current be lower than described first threshold electric current or when described sample rate current is higher than described second threshold current control turn-off described major loop
Described discharge major loop comprises load socket, the 4th metal-oxide-semiconductor and the tenth resistance, one binding post of described load socket connects the positive pole of described storage battery, another binding post connects the drain electrode of described the 4th metal-oxide-semiconductor, the source electrode of described the 4th metal-oxide-semiconductor connects an end of described the tenth resistance, the other end ground connection of described the tenth resistance;
Described discharge protection circuit comprises the 11 resistance, the 12 resistance, the 13 resistance and second triode, the positive pole of the described storage battery of one termination of described the 11 resistance, the other end connects an end of described the 12 resistance and the grid of described the 4th metal-oxide-semiconductor respectively, the collector electrode of described second triode of another termination of described the 12 resistance, the base stage of described second triode connects described single-chip microcomputer by described the 13 resistance, grounded emitter;
Described current sampling circuit comprises the 14 resistance and the 4th electric capacity, and described the 4th electric capacity is connected in parallel in the two ends of described the tenth resistance, the source electrode of described the 4th metal-oxide-semiconductor of a termination of described the 14 resistance, the described single-chip microcomputer of another termination.
3. solar energy movable power supply according to claim 2 is characterized in that, described solar energy movable power supply also comprises the charged state selection circuit that is used to select described solar energy movable power supply to enter state to be charged or withdraws from state to be charged,
Described charged state selects circuit to comprise the 15 resistance and selector button, the described single-chip microcomputer of a termination of described the 15 resistance, and the other end is by described selector button ground connection.
4. solar energy movable power supply according to claim 2, it is characterized in that, described solar energy movable power supply also comprises indicating circuit, and described indicating circuit indicates described solar energy movable power supply to enter charged state, overcharge condition, over-discharge state and overcurrent condition
Described indicating circuit comprises charging indicator light, the indicator light that overcharges, overdischarge indicator light, over current lamp, the 16 resistance, the 17 resistance, the 18 resistance and the 19 resistance, described charging indicator light connects described single-chip microcomputer by described the 16 resistance, the described indicator light that overcharges connects described single-chip microcomputer by described the 17 resistance, described overdischarge indicator light connects described single-chip microcomputer by described the 18 resistance, and described over current lamp connects described single-chip microcomputer by described the 19 resistance.
5. solar energy movable power supply according to claim 1 is characterized in that, comprises that also the work that is used to described single-chip microcomputer provides the voltage stabilizing circuit of stable output voltage,
Described voltage stabilizing circuit comprises the 5th electric capacity, the 6th electric capacity and three-terminal voltage-stabilizing pipe, the positive pole of the described storage battery of input termination of described three-terminal voltage-stabilizing pipe, the described single-chip microcomputer of output termination, earth terminal ground connection, the input of the described three-terminal voltage-stabilizing pipe of one termination of described the 5th electric capacity, other end ground connection, the output of the described three-terminal voltage-stabilizing pipe of a termination of described the 6th electric capacity, other end ground connection.
6. solar energy movable power supply according to claim 1 is characterized in that, also comprises fuse, and described fuse is connected in the current circuit of described storage battery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320084411 CN203086215U (en) | 2013-02-25 | 2013-02-25 | Solar movable power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320084411 CN203086215U (en) | 2013-02-25 | 2013-02-25 | Solar movable power supply |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203086215U true CN203086215U (en) | 2013-07-24 |
Family
ID=48832020
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320084411 Withdrawn - After Issue CN203086215U (en) | 2013-02-25 | 2013-02-25 | Solar movable power supply |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203086215U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103117581A (en) * | 2013-02-25 | 2013-05-22 | 浙江明烁电子科技有限公司 | Solar mobile power supply |
| CN108011413A (en) * | 2017-11-23 | 2018-05-08 | 惠州福睿锁业有限公司 | A kind of power circuit and power supply with super-charge super-discharge defencive function |
| CN109276849A (en) * | 2018-12-18 | 2019-01-29 | 冯炳 | A kind of open air treadmill |
-
2013
- 2013-02-25 CN CN 201320084411 patent/CN203086215U/en not_active Withdrawn - After Issue
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103117581A (en) * | 2013-02-25 | 2013-05-22 | 浙江明烁电子科技有限公司 | Solar mobile power supply |
| CN103117581B (en) * | 2013-02-25 | 2015-06-03 | 浙江明烁电子科技有限公司 | Solar mobile power supply |
| CN108011413A (en) * | 2017-11-23 | 2018-05-08 | 惠州福睿锁业有限公司 | A kind of power circuit and power supply with super-charge super-discharge defencive function |
| CN108011413B (en) * | 2017-11-23 | 2023-10-20 | 惠州福睿锁业有限公司 | Power supply circuit with overcharge and overdischarge protection function and power supply |
| CN109276849A (en) * | 2018-12-18 | 2019-01-29 | 冯炳 | A kind of open air treadmill |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103117581B (en) | Solar mobile power supply | |
| US8248021B2 (en) | Solar energy storing system and method with changeable electrical connections between rechargeable batteries | |
| CN103825329A (en) | Bidirectional power-switching circuit | |
| CN202663092U (en) | Circuit protecting battery against overcharge | |
| CN1949620A (en) | Power managing system with multi-charging modes | |
| CN202564995U (en) | Multichannel battery pack charge-discharge control device | |
| CN102332735A (en) | Program controlled charging circuit for nickel-hydrogen battery | |
| CN203086215U (en) | Solar movable power supply | |
| CN102830783B (en) | Intelligent power line of notebook computer power | |
| CN204290464U (en) | Power supply circuits and electronic equipment | |
| CN205123354U (en) | Low capacity lead acid battery's constant voltage constant current charging and protection circuit | |
| CN103117584B (en) | Portable solar mobile power supply | |
| CN203632908U (en) | Solar lamp control device | |
| CN102723747A (en) | A battery charging circuit and an illuminating lamp | |
| CN203135502U (en) | Portable solar mobile power supply | |
| CN208691000U (en) | A kind of switching circuit for charged pool function device | |
| CN201499006U (en) | Power supply for on-line monitoring system of transmission line | |
| CN204928247U (en) | Charging system is switched to solar energy intelligence | |
| CN101707266B (en) | Charge-discharge control circuit | |
| CN209046330U (en) | Charge and discharge electrical switching circuit and double-battery charge electric discharge automatic switching control equipment | |
| CN208029154U (en) | A kind of the LED Solar Light and its control circuit | |
| CN106998094A (en) | A kind of high-efficiency solar energy storage device | |
| CN203536989U (en) | Multifunctional mobile power supply | |
| CN101588065B (en) | Wireless commerical power management circuit | |
| CN201623513U (en) | Electrical energy distributor circuit and mobile terminal |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130724 Effective date of abandoning: 20150603 |
|
| RGAV | Abandon patent right to avoid regrant |