CN102332740A - Solar manual complementary charger and charging method thereof - Google Patents
Solar manual complementary charger and charging method thereof Download PDFInfo
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- CN102332740A CN102332740A CN201110255824A CN201110255824A CN102332740A CN 102332740 A CN102332740 A CN 102332740A CN 201110255824 A CN201110255824 A CN 201110255824A CN 201110255824 A CN201110255824 A CN 201110255824A CN 102332740 A CN102332740 A CN 102332740A
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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Abstract
The invention discloses a solar manual complementary charger and a charging method thereof. The charger comprises a solar light panel, a manual generator, a voltage stabilizing module of the solar light panel, the voltage stabilizing module of the generator and a DC/DC (direct current/direct current) voltage-stabilizing charging module, wherein the output end of the solar light panel is connected with the input end of the voltage stabilizing module of the solar light panel, and the output end of the voltage stabilizing module of the solar light panel is connected with the input end of the DC/DC voltage-stabilizing charging module; and the output end of the manual generator is connected with the input end of the voltage stabilizing module of the generator, and the output end of the voltage stabilizing module of the generator is connected with the input end of the DC/DC voltage-stabilizing charging module. The charging method comprises the following steps: converting solar energy into electrical energy by using the solar light panel to be output; converting kinetic energy into the electrical energy by using the manual generator; passing through the two voltage stabilizing modules for outputting the same voltage level; and finally, charging a device through the DC/DC module. The solar manual complementary charger has the advantages of flexible charging way, large power output, stable voltage output and long service life.
Description
Technical field
The present invention relates to charging technique, relate to the manual complementary charger of solar energy that is used to the charging of low pressure small-power electrical equipment specifically.
Background technology
Existing small-power charger can be divided into fixing charging and two kinds of mobile chargings, and the advantage of fixing charging is a safety and stability, and is little to the battery injury, charges but can only be fixed in band socket place, reduced its practicality.Along with fast development of society, mobile charging arises at the historic moment, and existing mobile charging mainly contains solar recharging, and is manual powered, vehicle-mounted charge etc.The solar charging piezoelectric voltage is stable, and charging current is little, helps extending battery life, but charging slowly, and affected by environment bigger, when having sunlight, can't not charge.Manual powered advantage is that charging is quick, affected by environment little, but because manual powered electric current is unstable, bigger to the battery injury, influence battery life, so have significant limitation.Vehicle-mounted charge then belongs to indirect charging, and after the first inversion, by filling admittedly the electrical equipment charging, it uses has significant limitation equally again.
Summary of the invention
The objective of the invention is to overcome the above-mentioned deficiency that prior art exists, manual complementary charger of a kind of solar energy and charging method thereof are provided, be mainly used in the low-power device of various low charging voltages such as mobile phone, MP3, digital camera.The present invention makes charger slowly to charge by day solar recharging and manual powered advantages, solar energy hand mix charging when needing, and night is charging separately manually.In addition, the novel sharing control pattern of manual powered employing is improved manual powered performance.
To achieve these goals, the technical scheme taked of the present invention is:
The manual complementary charger of a kind of solar energy; It comprises solar energy tabula rasa, manual generator, solar energy tabula rasa Voltage stabilizing module, generator Voltage stabilizing module, DC/DC voltage stabilizing charging module; The output of solar energy tabula rasa is connected with the input of solar energy tabula rasa Voltage stabilizing module, and the output of solar energy tabula rasa Voltage stabilizing module is connected with the input of DC/DC voltage stabilizing charging module; The output of manual generator is connected with the input of generator Voltage stabilizing module, and the output of generator Voltage stabilizing module is connected with the input of DC/DC voltage stabilizing charging module.
In the manual complementary charger of above-mentioned solar energy, solar energy tabula rasa Voltage stabilizing module comprises first switching tube, first voltage sensor, first current sensor, first inductance and DSP control circuit; First inductance is serially connected in the input of first voltage sensor; The output of first voltage sensor and first current sensor is connected with the first input end of DSP control circuit; First output of DSP control circuit is connected with first switching tube, and output pulse signal is given first switching tube.
In the manual complementary charger of above-mentioned solar energy, solar energy tabula rasa Voltage stabilizing module also comprises first input filter capacitor, first fly-wheel diode, first output filter capacitor; First input filter capacitor is connected in parallel on the output of solar energy tabula rasa; The first fly-wheel diode anode is connected on the negative pole of solar energy tabula rasa Voltage stabilizing module input; Negative electrode is connected on the source electrode of first switching tube, and first output filter capacitor is connected in parallel on the output of solar energy tabula rasa Voltage stabilizing module.
The manual complementary charger of above-mentioned solar energy also comprises the accessory power supply that is used to the power supply of DSP control circuit; The same and the shared DSP control circuit of the formation of said solar energy tabula rasa Voltage stabilizing module and generator Voltage stabilizing module, wherein first inductance and second inductance all have secondary winding, and secondary winding is connected with the input of accessory power supply through relay.
In the manual complementary charger of above-mentioned solar energy, accessory power supply comprises the first voltage stabilizing chip and the second voltage stabilizing chip that is used to export the 5V direct voltage that is used to export the 12V direct voltage; The input of the output termination second voltage stabilizing chip of the first voltage stabilizing chip; The output of the first voltage stabilizing chip and the second voltage stabilizing chip is connected with the power input of DSP control circuit.
In the manual complementary charger of above-mentioned solar energy; Comprise transformer, the 3rd switching tube, the 3rd fly-wheel diode, the 3rd output filter capacitor, tertiary voltage transducer, the 3rd current sensor and said DSP control circuit in the DC/DC Voltage stabilizing module; The 3rd switching tube is connected with the different name end of primary; Fly-wheel diode is connected with the end of the same name of transformer secondary output; The input of the 3rd output capacitance and tertiary voltage transducer is connected to the output two ends of DC/DC Voltage stabilizing module; The different name end series connection of the input of the 3rd current sensor and transformer, the DSP control circuit links to each other with the output of tertiary voltage transducer with the 3rd current sensor, sends pulse signal and gives switching tube.
The charging method of the manual complementary charger of above-mentioned solar energy; Comprise: the solar energy tabula rasa becomes electric energy to export to solar energy tabula rasa Voltage stabilizing module conversion of solar energy; Solar energy tabula rasa Voltage stabilizing module is stablized the output voltage and the electric current of solar energy, and the output of solar energy tabula rasa Voltage stabilizing module is as the input of DC/DC module; Manual generator converts kinetic energy to electric energy and exports to the generator Voltage stabilizing module, the output voltage and the electric current of generator Voltage stabilizing module stable generator, and the output of generator Voltage stabilizing module is also as the input of DC/DC module; The output of said generator Voltage stabilizing module is consistent with the output of solar energy tabula rasa Voltage stabilizing module, and two Voltage stabilizing modules all have Current Negative Three-Point Capacitance; The DC/DC module is the device charging, and said DC/DC module has output voltage grade selector switch, is the device charging of various electric pressures.
In the above-mentioned charging method, the charging current that cell voltage that the DSP control circuit reception tertiary voltage sensor sample in the DC/DC voltage stabilizing charging module obtains and the sampling of the 3rd current sensor obtain.
In the above-mentioned charging method; The DSP control circuit is through the output voltage of first voltage sensor sampling solar energy tabula rasa Voltage stabilizing module; Output voltage and predeterminated voltage value that sampling obtains are subtracted each other, and when output voltage increased, difference increased; By the ratio value that difference changes, the duty ratio that reduces the DSP control circuit first output output pulse signal of equal proportion; When output voltage reduced, difference reduced, by the ratio value that difference changes, and the duty ratio of the increase DSP control circuit first output output pulse signal of equal proportion, thus make output voltage stabilization on the predeterminated voltage value; The DSP control circuit is through the output current of first current sensor sampling solar energy tabula rasa Voltage stabilizing module; Output voltage and output current that sampling is obtained multiply each other; Obtain power output; The power output that gained power output and last a sampling is constantly obtained compares, and the output current of getting the big person of power output guarantees peak power output as the output current of this sampling instant to next sampling instant.
Compared with prior art; The present invention has following advantage and technique effect: the present invention has realized solar energy and manually complementary charging; The solar energy tabula rasa becomes electric energy output with solar energy converting, and manual generator is controlled by a hand handle, and the rotation of the accurate generator of process transmission mechanism control converts kinetic energy to electric energy; Guarantee the output of solar energy tabula rasa ability maximum power; And the output voltage of stable solar energy tabula rasa Voltage stabilizing module, the DSP control circuit is stabilized in same electric pressure with the output of two modules, is the device charging through the DC/DC module at last.Two Voltage stabilizing modules have been stablized output current through two current sensors and DSP control circuit, have not only solved DC/DC parallel connection problem, have also reduced the fluctuation of manual powered electric current, optimize manual powered performance.Inductance in solar energy tabula rasa Voltage stabilizing module and the generator Voltage stabilizing module has secondary winding; The accessory power supply of system selects inductance secondary winding or the inductance secondary winding in the generator Voltage stabilizing module in the solar energy tabula rasa Voltage stabilizing module as the input of accessory power supply by relay switch, has solved the problem of accessory power supply power supply when sunlight is inadequate.The signal that DSP control circuit reception tertiary voltage transducer and the 3rd current sensor send; Thereby select the charging modes of constant voltage, constant current or floating charge; This has not only improved charge efficiency, and the mobile phone batteries injury is less, the useful life of having improved battery of mobile phone.
Description of drawings
Fig. 1 is the general structure sketch map of the manual complementary charger of solar energy in the execution mode.
Fig. 2 is the circuit diagram of solar energy tabula rasa Voltage stabilizing module in the execution mode.
Fig. 3 is the circuit diagram of generator Voltage stabilizing module in the execution mode.
Fig. 4 is the circuit diagram of accessory power supply.
Fig. 5 is the circuit diagram of DC/DC module in the execution mode.
Embodiment
Be described further below in conjunction with the accompanying drawing specific embodiments of the invention, but enforcement of the present invention and protection range are not limited thereto.
Referring to Fig. 1; Fig. 1 has provided the overall construction drawing of the manual complementary charging circuit of solar energy; Wherein, The solar energy tabula rasa becomes electric energy to export to solar energy tabula rasa Voltage stabilizing module conversion of solar energy, and solar energy tabula rasa Voltage stabilizing module is stablized the output voltage and the electric current of solar energy, and the output of solar energy tabula rasa Voltage stabilizing module is as the input of DC/DC module.Manual generator is controlled by a hand handle; The rotation of the accurate generator of process transmission mechanism control converts kinetic energy to electric energy and exports to the generator Voltage stabilizing module; The output voltage and the electric current of generator Voltage stabilizing module stable generator, the output of generator Voltage stabilizing module are also as the input of DC/DC module.The output of generator Voltage stabilizing module is consistent with the output of solar energy tabula rasa Voltage stabilizing module, and two Voltage stabilizing modules all have Current Negative Three-Point Capacitance, has solved the difficult problem of DC/DC parallel technology, has also improved charging performance.Be the device charging through the DC/DC module at last, the DC/DC module has selector switch, can satisfy the voltage in several modes grade, thereby is the device charging of various electric pressures.
Fig. 2 has provided the circuit diagram of solar energy tabula rasa Voltage stabilizing module; Circuit structure is based on the buck circuit topology, and solar+ is the positive pole of solar energy tabula rasa input, and solar-is the negative pole of solar energy tabula rasa input; Capacitor C 1 is first input filter capacitor; Circuit is realized the adjusting of output voltage through the time that turns on and off of controlling the first switching tube Q1, and D1 is first fly-wheel diode, the electric current of the afterflow first inductor T1 when the first switching tube Q1 turn-offs.The former limit inductance of the first inductor T1 plays the energy storage effect; The Auxiliary1+ end of secondary inductance is as the positive pole of accessory power supply; C2 is first output filter capacitor; Solarout+ is the output of solar energy tabula rasa Voltage stabilizing module, the output voltage of first voltage sensor sampling solar energy tabula rasa Voltage stabilizing module, the output current of first current sensor sampling solar energy tabula rasa Voltage stabilizing module; Sampled signal is controlled the size of the first switching tube Q1 duty ratio through the DSP control circuit, thereby reaches the stable of output voltage, electric current.The DSP control circuit is through the output voltage of first voltage sensor sampling solar energy tabula rasa Voltage stabilizing module; Output voltage and predeterminated voltage value that sampling obtains are subtracted each other; When output voltage increases; Difference increases, by the ratio value that difference changes, and the duty ratio of the pulse signal that reduces the output of DSP control circuit first output of equal proportion; When output voltage reduced, difference reduced, by the ratio value that difference changes, and the duty ratio of the pulse signal of increase DSP control circuit first output of equal proportion output, thus make output voltage stabilization on the predeterminated voltage value; The DSP control circuit is through the output current of first current sensor sampling solar energy tabula rasa Voltage stabilizing module; Output voltage and output current that sampling is obtained multiply each other; Obtain power output; The power output that gained power output and last a sampling is constantly obtained compares, and the output current of getting the big person of power output has guaranteed peak power output like this as the output current of this sampling instant to next sampling instant.
Fig. 3 is the circuit diagram of generator Voltage stabilizing module, and circuit structure is consistent with solar energy tabula rasa Voltage stabilizing module, and shared DSP control circuit, motor+ and motor-are respectively the both positive and negative polarity that manual generator produces voltage.C6 is second input filter capacitor; The adjusting that realizes output voltage that turns on and off through control second switch pipe Q2; D2 is second fly-wheel diode, and the former limit inductance of the second inductance T2 plays the energy storage effect, and the Auxiliary2+ end of the secondary inductance of T2 is as the positive pole of accessory power supply.Motorout+ is the output of generator Voltage stabilizing module; The second voltage sensor sampling and outputting voltage; Second current sensor sampling output current; Sampled signal inputs to the DSP control circuit, adopts the control mode identical with solar energy tabula rasa Voltage stabilizing module to guarantee the maximization of the stable and power output of generator Voltage stabilizing module output voltage.
Fig. 4 has provided the auxiliary power circuit of system; Accessory power supply can be blended in the solar energy tabula rasa Voltage stabilizing module; When solar energy had input, 1 dozen of relay K was to the Auxiliary1+ (see figure 2), and the output of the first inductance T1 secondary that plays buffer action is as the accessory power supply of whole system; When solar energy is not imported; 1 dozen of K switch is to Auxiliary2+, and the second inductance T2 secondary in the generator Voltage stabilizing module (see figure 3) is output as the accessory power supply of whole system, and the secondary of T2 has buffer action equally.Voltage stabilizing chip 7812 and 7805 is exported the direct voltage of 12V and 5V respectively, as the power supply of DSP control circuit.DSP control circuit sampling and outputting voltage and output current; Output voltage that sampling is obtained and input voltage multiply each other and obtain power output; The power output that gained power output and last a sampling is constantly obtained compares, and gets big person adopts hill climbing maximal power tracing solar energy tabula rasa as adjusted power output power output.
Fig. 5 has provided the circuit diagram of DC/DC module, and circuit adopts the reverse exciting topological structure, and C6 is the 3rd input filtering, and C7 is the 3rd output filtering, and the control signal of DSP output is the pwm signal of high frequency, thereby controls conducting and the shutoff of the 3rd switching tube Q3.T3 is a high frequency transformer, has both played the effect of electric energy transmitting, plays the effect of isolating input and output again.Tertiary voltage sensor sample output voltage, the 3rd current sensor sampling output current, the signal input DSP control circuit that sampling obtains is as Control Parameter.DSP adopts constant current, constant voltage, floating charge three phases charging method to the control strategy of battery charge, and the real-time sampling cell voltage is judged charged state.When the cell voltage that obtains when the tertiary voltage sensor sample is lower than first setting voltage; The DSP control circuit is through the output current of the 3rd current sensor sampling DC/DC module; Output current and predetermined current value that sampling obtains are subtracted each other, and when output current increased, difference increased; By the ratio value that difference changes, the duty ratio of the pulse signal that reduces the output of DSP control circuit the 3rd output of equal proportion; When output current reduced, difference reduced, by the ratio value of difference variation; The duty ratio of the pulse signal of increase DSP control circuit the 3rd output output of equal proportion; Thereby make outputting current steadily on the predetermined current value, the DC/DC module that makes is operated in constant current charging mode, when the cell voltage that obtains when the tertiary voltage sensor sample reaches second setting voltage; The DSP control circuit is through the output voltage of tertiary voltage sensor sample DC/DC module; Output voltage and predeterminated voltage value that sampling obtains are subtracted each other, and when output voltage increased, difference increased; By the ratio value that difference changes, the duty ratio of the pulse signal that reduces the output of DSP control circuit of equal proportion; When output voltage reduced, difference reduced, by the ratio value of difference variation; The duty ratio of the pulse signal of the increase DSP control circuit output of equal proportion, thus make output voltage stabilization on the predeterminated voltage value, make the DC/DC module be operated in the constant voltage charge pattern; When the cell voltage that obtains when the tertiary voltage sensor sample was higher than the 3rd setting voltage, the DSP control circuit adopted aforesaid constant current charge mode perseverance to fill in the first Preset Time section, and the DSP control circuit stops to send pulse signal in the second Preset Time section; Storage battery stops charging in the second Preset Time section; The circulation constant current charge with stop filling two step operations, make the DC/DC module be operated in the floating charge pattern, after the floating charge time reaches the 3rd Preset Time; Stop charging, show the charging completion.Have voltage-selected switch in the DC/DC module, can select the number of turn of transformer T3 secondary winding, thereby select battery charging voltage.
Claims (9)
1. manual complementary charger of solar energy; It is characterized in that comprising solar energy tabula rasa, manual generator, solar energy tabula rasa Voltage stabilizing module, generator Voltage stabilizing module, DC/DC voltage stabilizing charging module; The output of solar energy tabula rasa is connected with the input of solar energy tabula rasa Voltage stabilizing module, and the output of solar energy tabula rasa Voltage stabilizing module is connected with the input of DC/DC voltage stabilizing charging module; The output of manual generator is connected with the input of generator Voltage stabilizing module, and the output of generator Voltage stabilizing module is connected with the input of DC/DC voltage stabilizing charging module.
2. the manual complementary charger of solar energy according to claim 1 is characterised in that solar energy tabula rasa Voltage stabilizing module comprises first switching tube, first voltage sensor, first current sensor, first inductance and DSP control circuit; First inductance is serially connected in the input of first voltage sensor; The output of first voltage sensor and first current sensor is connected with the first input end of DSP control circuit; First output of DSP control circuit is connected with first switching tube, and output pulse signal is given first switching tube.
3. the manual complementary charger of solar energy according to claim 2 is characterised in that solar energy tabula rasa Voltage stabilizing module also comprises first input filter capacitor, first fly-wheel diode, first output filter capacitor; First input filter capacitor is connected in parallel on the output of solar energy tabula rasa; The first fly-wheel diode anode is connected on the negative pole of solar energy tabula rasa Voltage stabilizing module input; Negative electrode is connected on the source electrode of first switching tube, and first output filter capacitor is connected in parallel on the output of solar energy tabula rasa Voltage stabilizing module.
4. the manual complementary charger of solar energy according to claim 1 is characterised in that also to comprise the accessory power supply that is used to the power supply of DSP control circuit; The same and the shared DSP control circuit of the formation of said solar energy tabula rasa Voltage stabilizing module and generator Voltage stabilizing module, wherein first inductance and second inductance all have secondary winding, and secondary winding is connected with the input of accessory power supply through relay.
5. the manual complementary charger of solar energy according to claim 4 is characterised in that accessory power supply comprises the first voltage stabilizing chip and the second voltage stabilizing chip that is used to export the 5V direct voltage that is used to export the 12V direct voltage; The input of the output termination second voltage stabilizing chip of the first voltage stabilizing chip; The output of the first voltage stabilizing chip and the second voltage stabilizing chip is connected with the power input of DSP control circuit.
6. the manual complementary charger of solar energy according to claim 1; Be characterised in that: comprise transformer, the 3rd switching tube, the 3rd fly-wheel diode, the 3rd output filter capacitor, tertiary voltage transducer, the 3rd current sensor and said DSP control circuit in the DC/DC Voltage stabilizing module; The 3rd switching tube is connected with the different name end of primary; Fly-wheel diode is connected with the end of the same name of transformer secondary output; The input of the 3rd output capacitance and tertiary voltage transducer is connected to the output two ends of DC/DC Voltage stabilizing module; The different name end series connection of the input of the 3rd current sensor and transformer, the DSP control circuit links to each other with the output of tertiary voltage transducer with the 3rd current sensor, sends pulse signal and gives switching tube.
7. the charging method of the manual complementary charger of each said solar energy of claim 1 ~ 6; Be characterised in that and comprise: the solar energy tabula rasa becomes electric energy to export to solar energy tabula rasa Voltage stabilizing module conversion of solar energy; Solar energy tabula rasa Voltage stabilizing module is stablized the output voltage and the electric current of solar energy, and the output of solar energy tabula rasa Voltage stabilizing module is as the input of DC/DC module; Manual generator converts kinetic energy to electric energy and exports to the generator Voltage stabilizing module, the output voltage and the electric current of generator Voltage stabilizing module stable generator, and the output of generator Voltage stabilizing module is also as the input of DC/DC module; The output of said generator Voltage stabilizing module is consistent with the output of solar energy tabula rasa Voltage stabilizing module, and two Voltage stabilizing modules all have Current Negative Three-Point Capacitance; The DC/DC module is the device charging, and said DC/DC module has output voltage grade selector switch, is the device charging of various electric pressures.
8. charging method according to claim 7 is characterized in that DSP control circuit in the DC/DC voltage stabilizing charging module receives the charging current that cell voltage that the tertiary voltage sensor sample obtains and the sampling of the 3rd current sensor obtain.
9. charging method according to claim 7; It is characterized in that the output voltage of DSP control circuit through first voltage sensor sampling solar energy tabula rasa Voltage stabilizing module; Output voltage and predeterminated voltage value that sampling obtains are subtracted each other, and when output voltage increased, difference increased; By the ratio value that difference changes, the duty ratio that reduces the DSP control circuit first output output pulse signal of equal proportion; When output voltage reduced, difference reduced, by the ratio value that difference changes, and the duty ratio of the increase DSP control circuit first output output pulse signal of equal proportion, thus make output voltage stabilization on the predeterminated voltage value; The DSP control circuit is through the output current of first current sensor sampling solar energy tabula rasa Voltage stabilizing module; Output voltage and output current that sampling is obtained multiply each other; Obtain power output; The power output that gained power output and last a sampling is constantly obtained compares, and the output current of getting the big person of power output guarantees peak power output as the output current of this sampling instant to next sampling instant.
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| CN201110255824.XA CN102332740B (en) | 2011-08-31 | 2011-08-31 | Solar manual complementary charger and charging method thereof |
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| CN201110255824.XA CN102332740B (en) | 2011-08-31 | 2011-08-31 | Solar manual complementary charger and charging method thereof |
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| CN102332740B (en) | 2014-10-08 |
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