CN1295368A - Solar battery and its mutual load controlling system - Google Patents
Solar battery and its mutual load controlling system Download PDFInfo
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- CN1295368A CN1295368A CN 99122223 CN99122223A CN1295368A CN 1295368 A CN1295368 A CN 1295368A CN 99122223 CN99122223 CN 99122223 CN 99122223 A CN99122223 A CN 99122223A CN 1295368 A CN1295368 A CN 1295368A
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Abstract
The integral solar battery and load controlling system includes solar battery, accumulator unit and load, in which an output switch unit is connected between the accumulator unit and the load, a solar battery output star detector is connected between the output of the solar battery and the output switch unit, which may have a solid state or electromechanical switch element with relatively larger switched power. The present invention uses the light accepting and outputting state of the solar battery as basis of environmental brightness to control directly the operation of the accumulator unit to the load.
Description
The present invention relates to a kind of solar cell that is applied to throw light on and mutual load controlling system, the nationality solar cell light output state of originally experiencing, foundation as the detection of environment light and shade, control the operating state of electrical storage device to light fixture, be when being subjected to the light output state in solar cell, electrical storage device is accepted charging and output function not; When solar cell was not subjected to light to be the high impedance status of not exporting, electrical storage device was output and does not charge.
The tradition solar lighting usually by solar cell in electrical storage device is charged by the light time, and, when environment is dark, controls electrical storage device and send electricity to drive lighting or other loads in not being subjected to light time nationality environment light and shade testing circuit.
Main purpose of the present invention is to provide the progressive design of a kind of solar cell that is applied to throw light on and the moving control system of load, be the foundation of light output state of originally experiencing with solar cell as the detection of environment light and shade, and then control the operating state of electrical storage device to light fixture, promptly be outside the charge power supply with the solar cell, and the while is as the function of environment light and shade checkout gear, simplify circuit, improve reliability and save the cost that environment light and shade checkout gear is set separately.
The object of the present invention is achieved like this: a kind of solar cell and mutual load controlling system, wherein:
Solar cell is constituted by the solar cell that luminous energy can be transferred to electric energy that contains various monocrystalline, polycrystalline, amorphous etc., and output connects electrical storage device; But electrical storage device is constituted by containing various charging and discharging secondary batteries or storage capacitor, and input connects solar cell, and output connects load; Load mainly contains various electric energy changes the load of luminous energy outward also applicable to various loads such as electric energy commentaries on classics mechanical or electrical energy commentaries on classics heat energy or electric energy commentaries on classics chemical energy or electric energy commentaries on classics acoustic energy;
Output switch apparatus is connected between electrical storage device and the load;
Solar cell outputs state detection circuit arrangement is made of electromechanics or solid-state electronic circuit arrangement, connect the output of solar cell, the output of solar cell outputs state detection circuit arrangement connects switching device, and the electromechanical assembly that solar cell outputs state detection circuit arrangement and output switch apparatus can be structure as a whole or two is isolating construction;
Output switch apparatus can be set up the solid-state or electromechanical switch element of big power switched,
Intercepting diode can forward be series between solar cell and the electrical storage device;
Load can have the relevant control device and the switching device of automatic running or manual control.
Output switch apparatus is solid-state output switch apparatus, contain the monocrystal or the Darlington switch circuit devices that are constituted by NPN or PNP switch crystal or field effect transistor, and its collector electrode power supply that C connects and connect as perseverance between the base stage B that controls and to control resistance, conductive electrode C and the emitter-base bandgap grading E that controls crystal then in parallel between base stage B and emitter-base bandgap grading E, the base stage of controlling crystal then lead to solar cell through resistance with the union end that intercepts diode;
Solar cell outputs state detection circuit arrangement is a solar cell output voltage detecting circuit device, connects the voltage output end of solar cell, and output connects controls output switch apparatus.
Output switch apparatus is constituted by solid-state output switch apparatus, contain the monocrystal or the Darlington switch circuit devices that are constituted by NPN or PNP switch crystal or field effect transistor, and its collector electrode power supply that C connects and connect as perseverance between the base stage B that controls and control resistance, optical coupler then in parallel is provided with the output of light-operated crystal between base stage B and emitter-base bandgap grading E;
Solar cell outputs state detection circuit arrangement is a solar cell output voltage detecting circuit device, be provided with the input series connection of light-emitting diode by current-limiting resistance and optical coupler after, be connected to two outputs of solar cell;
The diode of receiving in season is connected with the light-emitting diode of optical coupler input.
Output switch apparatus is made of the electromechanical relay device;
Solar cell outputs state detection circuit arrangement is a solar cell output voltage detecting circuit device, is made of relay, and its drive coil is parallel to the two ends of solar cell;
The diode of receiving in season is connected with relay.
Solar cell outputs state detection circuit arrangement is constituted by solar cell detecting device for output current and the electromechanical assembly of controlling output switch apparatus, the solar cell output current that wherein detects solar cell electric current output state detects dress and is the current detecting relay, and output connects output switch apparatus;
Output switch apparatus is made of electromechanics or solid-state electronic circuit arrangement;
The shunting pressure limiting device is by receiving diode or be made of along the diode of bias voltage or by other solid-state electronic circuit or electromechanical assembly tool season.
Solar cell outputs state detection circuit arrangement detects impedance for the solar cell output current, element by resistance or other tool linearities or nonlinear impedance characteristic is constituted, be series between solar cell and the electrical storage device, and the base stage B and emitter-base bandgap grading E of switch crystal between, the conductive electrode C of switch crystal and emitter-base bandgap grading E be parallel to the solar cell two ends after relay is connected;
Output switch apparatus is made of electromechanics or solid-state electronic circuit arrangement;
Relay and the output switch apparatus circuit or two that can be structure as a whole is and separates;
The shunting pressure limiting device is by receiving diode or be made of along the diode of bias voltage or by other solid-state electronic circuit or electromechanical assembly tool season.
Solar cell outputs state detection circuit arrangement detects impedance for the solar cell output current, element by resistance or other tool linearities or nonlinear impedance characteristic is constituted, be series between solar cell and the electrical storage device, its two ends are parallel to the input that optical coupler is provided with light-emitting diode;
Output switch apparatus is made of solid-state output switch apparatus, the monocrystal or the Darlington switch circuit devices that are constituted by NPN or PNP switch crystal or field effect transistor, and its collector electrode power supply that C connects and connect as perseverance between the base stage B that controls and control resistance, optical coupler then in parallel is provided with the output of light-operated crystal between base stage B and emitter-base bandgap grading E;
The shunting pressure limiting device is by receiving diode or be made of along the diode of bias voltage or by other solid-state electronic circuit or electromechanical assembly tool season.
According to the technique scheme analysis as can be known, the present invention is simple in structure, has not only simplified circuit, and has saved assembly, has reduced cost,
Following conjunction with figs. describes feature of the present invention and advantage in detail:
Fig. 1 is subjected to light outputs state detection circuit construction system calcspar for nationality solar cell of the present invention.
Fig. 2 is one of nationality solar cell output voltage detecting circuit construction system embodiment of the present invention.
Fig. 3 is two of nationality solar cell output voltage detecting circuit construction system embodiment of the present invention.
Fig. 4 is three of nationality solar cell output voltage detecting circuit construction system embodiment of the present invention.
Fig. 5 is one of nationality solar cell output current detection circuit construction system embodiment of the present invention.
Fig. 6 is two of nationality solar cell output current detection circuit construction system embodiment of the present invention.
Fig. 7 is three of mat solar cell output current detection circuit construction system embodiment of the present invention.
Detect solar cell working status detection mode among the present invention and comprise current detecting mode or voltage detecting mode, respectively adjoint embodiment with main circuit of the present invention constitute, improve feature and other effect, purpose is described in detail as follows:
Be illustrated in figure 1 as nationality solar cell of the present invention and be subjected to light outputs state detection circuit construction system calcspar, its main composition circuit comprises:
Solar cell SC100: the solar cell that luminous energy can be transferred to electric energy that contains various monocrystalline, polycrystalline, amorphous etc. constitutes, and for transferring solar energy to electric energy electrical storage device is charged;
Electrical storage device B100: but various charging and discharging secondary batteries contained or storage capacitor constitutes, for the charging of accepting solar cell SC100 and for to load LB100 discharge output;
Output switch apparatus SW100: serve as reasons electromechanics or solid-state electronic circuit arrangement constitute, for controlling electrical storage device B100 to load output or interruption;
Solar cell outputs state detection circuit arrangement S100: serve as reasons electromechanics or solid-state electronic circuit arrangement constitute, nationality is to output voltage or the electric detection of staying of output of solar cell SC100, to control output switch apparatus SW100 and then to control the operating condition of electrical storage device to load LD100;
Its operating function is during for the charging voltage that is subjected to light as solar cell SC100 electrical storage device B00 is charged or the big set point of electric current, and solar cell outputs state detection circuit arrangement S100 controls output switch apparatus SW100 and makes and be cut-out (OFF) state between electrical storage device B100 and the load; When solar cell is not subjected to light or luminous energy darker, and solar cell SC100 to the charging voltage of electrical storage device B100 or electric current less than set point or when being zero, solar cell outputs state detection circuit arrangement S100 controls output switch apparatus SW100 and is conducting state, and then makes electrical storage device B100 present electricity (ON) output state to load LD100; The electromechanical assembly or two that above-mentioned solar cell outputs state detection circuit arrangement S100 and output switch apparatus SW100 can be structure as a whole is isolating construction; Output switch apparatus SW100 often cut-offs electricity or be not subjected to the light time to be normally closed energising load LD100 is by the light time but mat output switch apparatus SW100 further controls the solid-state or electromechanical switch element of setting up big power switched separately under the invariable circuit control logic in addition;
Intercept diode CR100: for supplying between solar cell SC100 and the electrical storage device B100 to prevent adverse current by charging current for forward being series at; Intercepting diode CR100 can need and select to be provided with or not to be provided with according to circuit;
Load LD100: the load that mainly contains various electric energy and change luminous energy also can be common to electric energy outward changes that mechanical or electrical energy changes heat energy or electric energy changes chemical energy or electric energy changes various loads such as acoustic energy, and load can further be provided with the relevant control device and the switching device of independence running own or manual control.
Be illustrated in figure 2 as one of nationality solar cell output voltage detecting circuit construction system embodiment of the present invention, its main composition circuit comprises:
Solar cell SC100: contain various monocrystalline, polycrystalline, the solar cell that luminous energy can be transferred to electric energy of amorphous etc. constitutes, and for transferring solar energy to electric energy electrical storage device is charged;
Electrical storage device B100: but various charging and discharging secondary batteries contained or storage capacitor constitutes, for the charging of accepting solar cell SC100 and for to load LD100 discharge output;
Output switch apparatus SW100: by being constituted by solid-state output switch apparatus Q200, contain the monocrystal or the Darlington switch circuit devices that are constituted by NPN or PNP switch crystal or field effect transistor (MOSFET), and its collector electrode power supply that C connects and connect as perseverance between the base stage B that controls and control resistance R 200, make the solid switchgear normality be in conducting state, conductive electrode C and the emitter-base bandgap grading E that controls crystal Q201 then in parallel between the base stage B of Q200 and emitter-base bandgap grading E, the base stage of controlling crystal Q201 is then led to solar cell and the union end that intercepts diode through resistance R 201; When solar cell was subjected to the light generating, output voltage makes to be controlled crystal Q201 conducting and then makes solid switchgear Q200 be cut-off state, load this moment LD100 no power, and by solar-electricity SC100 electrical storage device B100 is charged; Otherwise when solar cell SC100 is weakened by light or is not subjected to the light time, lead to through resistance R 201 and to control the voltage of crystal Q201 and electric current diminishes or zero for reducing to, make and control crystal Q201 and be cut-off state, and then make solid switchgear Q700 and Q701 be the normality conducting state and electrical storage device B100 is switched on to load LD100;
Output switch apparatus SW100 often cut-offs electricity or be not subjected to the light time to be normally closed energising load LD100 is by the light time but nationality output switch apparatus SW100 further controls the solid-state or electromechanical switch element of setting up big power switched separately under the invariable circuit control logic in addition;
Solar cell output voltage detecting circuit device S101, be the detection of nationality, to control output switch apparatus SW100 and then to control the operating condition of electrical storage device to load LD100 to the output voltage of solar cell SC100; Its operating function is during for the big set point of charging voltage that is subjected to light as solar cell SC100 electrical storage device B100 is charged, and solar cell output voltage detecting circuit device S101 controls output switch apparatus SW100 and makes and be cut-out (OFF) state between electrical storage device B100 and the load; When solar cell is not subjected to light or luminous energy darker, and solar cell SC100 to the charging voltage of electrical storage device B100 less than set point or when being zero, solar cell output voltage detecting circuit device S101 controls output switch apparatus SW100 and is conducting state, and then makes electrical storage device B100 present electricity (ON) output state to load LD100; The electromechanical assembly or two that above-mentioned solar cell output voltage detecting circuit device S101 and output switch apparatus SW100 can be structure as a whole is isolating construction;
Intercept diode CR100:, supply to prevent adverse current by charging current for for forward being series between solar cell SC100 and electrical storage device B100;
Load LD100: the load that mainly contains various electric energy and change luminous energy also changes applicable to electric energy outward that mechanical or electrical energy changes heat energy or electric energy changes chemical energy or electric energy changes various loads such as acoustic energy, and load can further be provided with the relevant control device and the switching device of independence running own or manual control.
Be illustrated in figure 3 as two of nationality solar cell output voltage detecting circuit construction system embodiment of the present invention, its main composition circuit comprises:
Solar cell SC100: the solar cell that luminous energy can be transferred to electric energy that contains various monocrystalline, polycrystalline, amorphous etc. constitutes, and for transferring solar energy to electric energy electrical storage device is charged;
Electrical storage device B100: but various charging and discharging secondary batteries contained or storage capacitor constitutes, for the charging of accepting solar cell SC100 and for to load LD100 discharge output;
Output switch apparatus SW100: by being constituted by solid-state output switch apparatus Q300, Q301, contain the monocrystal or the Darlington switch circuit devices that are constituted by NPN or PNP switch crystal or field effect transistor (MOSFET), and its collector electrode power supply that C connects and connect as perseverance between the base stage B that controls and control resistance R 302 and make the solid switchgear normality be in conducting state, optical coupler PC100 then in parallel is provided with the output of light-operated crystal between the base stage B of Q301 and Q300 emitter-base bandgap grading E; When solar cell is subjected to the light generating, output voltage is during greater than the operating voltage of optical coupler PC100 input light-emitting diode, the lumination of light emitting diode of optical coupler PC100 makes the crystal conducting of output and then makes solid switchgear Q300 and Q301 be cut-off state, this moment load LD100 no power and electrical storage device B100 being charged by solar-electricity SC100; Otherwise when solar cell SC100 is weakened by light or is not subjected to the light time, output voltage reduces or is zero to make the not luminous photoelectric crystal of optical coupler PC100 output that makes relatively of output light-emitting diode of optical coupler PC100 be cut-off state, and then makes solid switchgear Q300 and Q301 be conducting state and electrical storage device BAT100 is switched on to load LD100; Output switch apparatus SW100 often cut-offs electricity or be not subjected to the light time to be normally closed energising load LD100 is by the light time but nationality output switch apparatus SW100 further controls the solid-state or electromechanical switch element of setting up big power switched separately under the invariable circuit control logic in addition;
Solar cell output voltage detecting circuit device S101: for being connected to two outputs of solar cell SC100 after the input series connection that is provided with light-emitting diode by current-limiting resistance R301 and optical coupler PC100; Nationality is to the detection of the output voltage of solar cell SC100, to control output switch apparatus SW100 and then to control the operating condition of electrical storage device to load LD100; Its operating function is during for the big set point of charging voltage that is subjected to light as solar cell SC100 electrical storage device B100 is charged, and solar cell output voltage detecting circuit device S101 controls output switch apparatus SW100 and makes and be cut-out (OFF) state between electrical storage device B100 and the load; When solar cell is not subjected to light or luminous energy darker, and solar cell SC100 to the charging voltage of electrical storage device B100 less than set point or when being zero, solar cell output voltage detecting circuit device S101 controls output switch apparatus SW100 and is conducting state, and then makes electrical storage device B100 present electricity (ON) output state to load m100; Above-mentioned solar cell output voltage detecting circuit device S101 and output switch apparatus SW100 can be structure as a whole or two be isolating construction;
Intercept diode CR100: for supplying between solar cell SC100 and the electrical storage device B100 to prevent adverse current by charging current for forward being series at; Intercepting diode can select to be provided with or not to be provided with according to need;
Receive diode ZD300 season: for for connect with the light-emitting diode of optical coupler PC100 input with the light-emitting diode of adjustment optical coupler PC100 input and the interactive relationship between solar cell SC100 and electrical storage device B100 terminal voltage:
The lumination of light emitting diode of optical coupler PC100 input when solar array voltage rises to set point, and be not provided with under the obstruct diode state, solar array voltage reduces or when being zero, the voltage 1. that the light-emitting diode of optical coupler PC100 input bears electrical storage device B100 still can be non-luminous reverse action; 2. keep or when electrical storage device B100 is high voltage luminous, and when after discharge makes the voltage of electrical storage device B100 slightly reduce to set point, the light-emitting diode of optical coupler PC100 input is not luminous and makes output switch apparatus SW100 be closed, and then the electric energy of electrical storage device B100 is exported load;
Load LD100: the load that mainly contains various electric energy and change luminous energy also changes applicable to electric energy outward that mechanical or electrical energy changes heat energy or electric energy changes chemical energy or electric energy changes various loads such as acoustic energy, and load can further be provided with the relevant control device and the switching device of independence running own or manual control.
Be illustrated in figure 4 as three of nationality solar cell output voltage detecting circuit construction system embodiment of the present invention, its main composition circuit comprises:
Solar cell SC100: the solar cell that luminous energy can be transferred to electric energy that contains various monocrystalline, polycrystalline, amorphous etc. constitutes, and for transferring solar energy to electric energy electrical storage device is charged;
Electrical storage device B100: but various charging and discharging secondary batteries contained or storage capacitor constitutes, for the charging of accepting solar cell SC100 and for to load LD100 discharge output;
Output switch apparatus SW100: by being constituted, for controlling electrical storage device B100 to load output or interruption by the electromechanical relay device; Output switch apparatus SW100 often cut-offs electricity or be not subjected to the light time to be normally closed energising load LD100 is by the light time but nationality output switch apparatus SW100 further controls the solid-state or electromechanical switch element of setting up big power switched separately under the invariable circuit control logic in addition;
Solar cell output voltage detecting circuit device S101: by being made of relay R Y200, its drive coil is for the two ends that are parallel to solar cell SC100.Nationality is to the detection of solar cell worker 100 output voltages, to control the output switch apparatus SW100 that is normally closed (NC) contact and then to control the operating condition of electrical storage device to load LD100;
Its operating function is for the charging voltage that is subjected to light as solar cell SC100 electrical storage device B100 is charged during greater than set point, and solar cell output voltage detecting circuit device S101 controls output switch apparatus SW100 and makes and be cut-out (OFE) state between electrical storage device B100 and the load; When solar cell is not subjected to light or luminous energy darker, and solar cell SC100 to the charging voltage of electrical storage device B100 less than set point or when being zero, solar cell output voltage detecting circuit device S101 controls output switch apparatus SW100 and is conducting state, and then makes electrical storage device B100 present electricity (ON) output state to load LD100; The electromechanical assembly or two that above-mentioned solar cell output voltage detecting circuit device S101 and output switch apparatus SW100 can be structure as a whole is isolating construction;
Intercept diode CR100:, supply to prevent adverse current by rechargeable battery for for forward being series between solar cell SC100 and electrical storage device B100; Intercepting diode CR100 can need and select to be provided with or not to be provided with according to circuit;
Receive diode ZD400 season: for being the pass for the interaction of connect with relay R Y200 to adjust relay R Y200 and the solar cell SC100 and the electrical storage device B100 terminal voltage gate of a village;
When solar array voltage rose to set point, relay R Y200 moved sorption, and intercepted under the diode state not being provided with, and solar array voltage reduces or when being zero, and the voltage 1. that relay R Y200 bears electrical storage device B100 still can be the reverse action of escape; Two. or when electrical storage device B100 is high voltage, keep by sorption, and when after discharge makes the voltage of electrical storage device B100 slightly reduce to set point, relay R Y200 is escape, and makes output switch apparatus SW100 be closed, and then the electric energy of electrical storage device B100 is exported load;
Load LD100: the load that mainly contains various electric energy and change luminous energy also can be common to electric energy outward changes that mechanical or electrical energy changes heat energy or electric energy changes chemical energy or electric energy changes various loads such as acoustic energy, and load can further be provided with the relevant control device and the switching device of independence running own or manual control.
Be illustrated in figure 5 as one of nationality solar cell output current detection circuit construction system embodiment of the present invention, its main composition circuit comprises:
Solar cell SC100: the solar cell that luminous energy can be transferred to electric energy that contains various monocrystalline, polycrystalline, amorphous etc. constitutes, and for transferring solar energy to electric energy electrical storage device is charged;
Electrical storage device B100: but various charging and discharging secondary batteries contained or storage capacitor constitutes, for the charging of accepting solar cell SC100 and for to load LD100 discharge output;
The solar cell detecting device for output current RY100 and the output switch apparatus SW100 that controls: constituted by electromechanical assembly, wherein RY100 is the current detecting relay, for detecting solar cell electricity sea output state, to control output switch apparatus SW100 and then to control the operating condition of electrical storage device to load LD100; Wherein SW100 is that output switch apparatus is for controlling electrical storage device B100 to load output or interruption; Its operating function is for being subjected to light to electrical storage device B100 charging current during greater than the sorption operating value of current sensing means RY100 as solar cell SC100, current sensing means RY100 moves and controls output switch apparatus SW100 and makes and be cut-out (OFF) state between electrical storage device B100 and the load; When solar cell is not subjected to light or luminous energy darker, and solar cell SC100 is to the charging current of electrical storage device B100 during less than the disengaging operating value of current sensing means RY100, current sensing means RY100 controls output switch apparatus SW100 and is conducting state, and then makes electrical storage device B100 present electricity (ON) output state to load LD100; The electromechanical assembly or two that above-mentioned current sensing means RY100 and output switch apparatus SW100 can be structure as a whole is isolating construction;
Output switch apparatus SW100: serve as reasons electromechanics or solid-state electronic circuit arrangement constitute, for controlling electrical storage device B100 to load output or interruption; Output switch apparatus SW100 is under the invariable circuit control logic in addition, but mat output switch is adorned in an instant SW100 and further controlled the solid-state or electromechanical switch element of setting up big power switched separately and often cut-off electricity or be not subjected to the light time to be normally closed energising load LD100 is by the light time;
Shunting pressure limiting device VL100: by receive diode or constituted along the diode of bias voltage or by other solid-state electronic circuit or electromechanical assembly by season by tool, for transporting to electrical storage device B100 charging electricity at solar cell SC100 when big, for the voltage drop value upper limit of the two ends formation that is limited in current sensing means RY100, and form the shunting function; This shunting pressure limiting device VL100 can be self-contained unit or is integrative-structure with current sensing means RY100, also the shunting pressure limiting device can be set according to circuit requirements;
Load LD100: mainly containing various electric energy changes outside the load of luminous energy, also change mechanical or electrical energy applicable to electric energy and change heat energy or various loads such as electric energy commentaries on classics chemical energy or electric energy commentaries on classics acoustic energy, load can further be provided with the relevant control device and the switching device of independence running own or manual control.
Be illustrated in figure 6 as two of nationality solar cell output current detection circuit construction system embodiment of the present invention, its main composition circuit comprises:
Solar cell SC100: the solar cell that luminous energy can be transferred to electric energy that contains various monocrystalline, polycrystalline, amorphous etc. is formed, and for transferring solar energy to electric energy electrical storage device is charged;
Electrical storage device B100: but various charging and discharging secondary batteries contained or storage capacitor constitutes, for the charging of accepting solar cell SC100 and for to load LD100 discharge output;
The solar cell output current detects impedance Z 0: by the element by resistance or other tool linearities or nonlinear impedance characteristic is constituted, for being series between solar cell SC100 and the electrical storage device S100 between the base stage B and emitter-base bandgap grading E that reaches switch crystal Q100, the conductive electrode C of switch crystal Q100 and emitter-base bandgap grading E be parallel to solar cell SC100 two ends after relay R Y200 connects; When charging current is passed through when solar cell SC100 is subjected to light to produce electric energy, the two ends generation relative voltage drop of current detecting impedance Z 0 is deleted for driving switch crystal Q100 and is conducting state, make relay R Y200 be the energising sorption, and then control output switch apparatus SW100 and be off state; And in solar cell SC100 diminished by light or be not subjected to the light time charging current with diminish or when interrupting, voltage drop VBE by the current detecting impedance diminishes or is zero to make switch crystal Q100 be cut-off state, the relay R Y200 that connects with switch crystal Q100 then is escape makes the output switch apparatus SW100 of the control of writing be closure state, and then the electric energy of electrical storage device B100 is exported load LD100;
Above-mentioned relay R Y200 and the output switch apparatus SW100 circuit or two that can be structure as a whole is isolating construction;
Output switch apparatus SW100: serve as reasons electromechanics or solid-state electronic circuit arrangement constitute, for controlling electrical storage device B100 to load output or interruption; Output switch apparatus SW100 often cut-offs electricity or be not subjected to the light time to be normally closed energising load LD100 is by the light time but nationality output switch apparatus SW100 further controls the solid-state or electromechanical switch element of setting up big power switched separately under the invariable circuit control logic in addition;
Shunting pressure limiting device VL100: by receive diode or constituted along the diode of bias voltage or by other solid-state electronic circuit or electromechanical assembly by season by tool, for transporting to electrical storage device B100 charging electricity at solar cell SC100 when big, for the voltage drop value upper limit of the two ends formation that is limited in current detecting impedance Z O, and form the shunting function;
This shunting pressure limiting device VL100 can be self-contained unit or public current sensing means RY100 is integrative-structure, also the shunting pressure limiting device can be set according to circuit requirements;
Be illustrated in figure 7 as three of nationality solar cell output current detection circuit construction system embodiment of the present invention, its main composition circuit comprises:
Solar cell SC100: the solar cell that luminous energy can be transferred to electric energy that contains various cover crystalline substances, polycrystalline, amorphous etc. constitutes, and for transferring solar energy to electric energy electrical storage device is charged;
Electrical storage device B100: but various charging and discharging secondary batteries contained or storage capacitor constitutes, for the charging of accepting solar cell SC100 and for to load LD100 discharge output;
The solar cell output current detects impedance Z 0: by the element by resistance or other tool linearities or nonlinear impedance characteristic is constituted, for being series between solar cell SC100 and the electrical storage device B100, its two ends are for being parallel to the input that optical coupler PC100 is provided with light-emitting diode;
Output switch apparatus SW100: by being constituted by solid-state output switch apparatus Q700, Q701, contain the monocrystal or the Darlington switch circuit devices that are constituted by NPN or PNP switch crystal or field effect transistor (B10SFET), and its collector electrode power supply that C connects and connect as perseverance between the base stage B that controls and control resistance R 700 and make the solid switchgear normality be in conducting state, optical coupler PC100 then in parallel is provided with the output of light-operated crystal between the emitter-base bandgap grading E of the base stage B of Q701 and Q700; When solar cell is subjected to the light generating, the output current galvanization detects impedance Z 0, and in Z0 voltage drop that two ends form, when voltage drop during greater than the operating voltage of optical coupler PC100 input light-emitting diode, the lumination of light emitting diode of optical coupler PC100 makes the crystal conducting of output and then makes solid switchgear Q700 and Q701 be cut-off state, this moment load LD100 no power and electrical storage device B100 being charged by solar-electricity SC100; Otherwise when solar cell SC1 crucian carp is weakened by light or is not subjected to the light time, electric current by current detecting impedance Z 0 diminishes or for reducing to zero, the voltage drop that forms at current detecting impedance Z 0 two ends also reduces or is zero, make the not luminous photoelectric crystal of optical coupler PC100 output that makes relatively of output light-emitting diode of optical coupler PC100 be cut-off state, and then make solid switchgear Q700 and Q701 be conducting state and electrical storage device BAT100 is switched on to load LD100; Output switch apparatus SW100 is under the invariable circuit control logic in addition, but nationality output switch apparatus SW100 further controls to set up separately and just changes the solid-state of power or the electromechanical switch element often cut-offs electricity or be not subjected to the light time to be normally closed energising load LD100 is by the light time greatly;
Shunting pressure limiting device VL100: by receive diode or constituted along the diode of bias voltage or by other solid-state electronic circuit or electromechanical assembly by season by tool, for transporting to electrical storage device B100 charging electricity at solar cell SC100 when big, for the voltage drop value upper limit of the two ends formation that is limited in current detecting impedance Z 0, and form the shunting function;
This shunting pressure limiting device VL100 can be self-contained unit or is integrative-structure with current detecting impedance Z 0, also the shunting pressure limiting device can be set according to circuit requirements;
Load LD100: the load that mainly contains various electric energy and change luminous energy also changes applicable to electric energy outward that mechanical or electrical energy changes heat energy or electric energy changes chemical energy or electric energy changes various loads such as acoustic energy, and load can further be provided with the relevant control device and the switching device of independence running own or manual control.
Claims (7)
1, a kind of solar cell and mutual load controlling system, wherein:
Solar cell is constituted by the solar cell that luminous energy can be transferred to electric energy that contains various monocrystalline, polycrystalline, amorphous etc., and output connects electrical storage device; But electrical storage device is constituted by containing various charging and discharging secondary batteries or storage capacitor, and input connects solar cell, and output connects load; Load mainly contains the load of various electric energy commentaries on classics luminous energy also changes mechanical or electrical energy commentaries on classics heat energy or various loads such as electric energy commentaries on classics chemical energy or electric energy commentaries on classics acoustic energy applicable to electric energy outward, it is characterized in that:
Output switch apparatus is connected between electrical storage device and the load;
Solar cell outputs state detection circuit arrangement is made of electromechanics or solid-state electronic circuit arrangement, connect the output of solar cell, the output of solar cell outputs state detection circuit arrangement connects switching device, and the electromechanical assembly that solar cell outputs state detection circuit arrangement and output switch apparatus can be structure as a whole or two is isolating construction;
Output switch apparatus can be set up the solid-state or electromechanical switch element of big power switched,
Intercepting diode can forward be series between solar cell and the electrical storage device;
Load can have the relevant control device and the switching device of automatic running or manual control.
2, solar cell as claimed in claim 1 and mutual load controlling system is characterized in that:
Output switch apparatus is solid-state output switch apparatus, contain the monocrystal or the Darlington switch circuit devices that are constituted by NPN or PNP switch crystal or field effect transistor, and its collector electrode power supply that C connects and connect as perseverance between the base stage B that controls and to control resistance, conductive electrode C and the emitter-base bandgap grading E that controls crystal then in parallel between base stage B and emitter-base bandgap grading E, the base stage of controlling crystal then lead to solar cell through resistance with the union end that intercepts diode;
Solar cell outputs state detection circuit arrangement is a solar cell output voltage detecting circuit device, connects the voltage output end of solar cell, and output connects controls output switch apparatus.
3, solar cell as claimed in claim 1 and mutual load controlling system is characterized in that:
Output switch apparatus is constituted by solid-state output switch apparatus, contain the monocrystal or the Darlington switch circuit devices that are constituted by NPN or PNP switch crystal or field effect transistor, and its collector electrode power supply that C connects and connect as perseverance between the base stage B that controls and control resistance, optical coupler then in parallel is provided with the output of light-operated crystal between base stage B and emitter-base bandgap grading E;
Solar cell outputs state detection circuit arrangement is a solar cell output voltage detecting circuit device, be provided with the input series connection of light-emitting diode by current-limiting resistance and optical coupler after, be connected to two outputs of solar cell;
The diode of receiving in season is connected with the light-emitting diode of optical coupler input.
4, solar cell as claimed in claim 1 and mutual load controlling system is characterized in that:
Output switch apparatus is made of the electromechanical relay device;
Solar cell outputs state detection circuit arrangement is a solar cell output voltage detecting circuit device, is made of relay, and its drive coil is parallel to the two ends of solar cell;
The diode of receiving in season is connected with relay.
5, solar cell as claimed in claim 1 and mutual load controlling system is characterized in that:
Solar cell outputs state detection circuit arrangement is constituted by solar cell detecting device for output current and the electromechanical assembly of controlling output switch apparatus, the solar cell output current that wherein detects solar cell electric current output state detects dress and is the current detecting relay, and output connects output switch apparatus;
Output switch apparatus is made of electromechanics or solid-state electronic circuit arrangement;
The shunting pressure limiting device is by receiving diode or be made of along the diode of bias voltage or by other solid-state electronic circuit or electromechanical assembly tool season.
6, solar cell as claimed in claim 1 and mutual load controlling system is characterized in that:
Solar cell outputs state detection circuit arrangement detects impedance for the solar cell output current, element by resistance or other tool linearities or nonlinear impedance characteristic is constituted, be series between solar cell and the electrical storage device, and the base stage B and emitter-base bandgap grading E of switch crystal between, the conductive electrode C of switch crystal and emitter-base bandgap grading E be parallel to the solar cell two ends after relay is connected;
Output switch apparatus is made of electromechanics or solid-state electronic circuit arrangement;
Relay and the output switch apparatus circuit or two that can be structure as a whole is and separates;
The shunting pressure limiting device is by receiving diode or be made of along the diode of bias voltage or by other solid-state electronic circuit or electromechanical assembly tool season.
7, solar cell as claimed in claim 1 and mutual load controlling system is characterized in that:
Solar cell outputs state detection circuit arrangement detects impedance for the solar cell output current, element by resistance or other tool linearities or nonlinear impedance characteristic is constituted, be series between solar cell and the electrical storage device, its two ends are parallel to the input that optical coupler is provided with light-emitting diode;
Output switch apparatus is made of solid-state output switch apparatus, the monocrystal or the Darlington switch circuit devices that are constituted by NPN or PNP switch crystal or field effect transistor, and its collector electrode power supply that C connects and connect as perseverance between the base stage B that controls and control resistance, optical coupler then in parallel is provided with the output of light-operated crystal between base stage B and emitter-base bandgap grading E;
The shunting pressure limiting device is by receiving diode or be made of along the diode of bias voltage or by other solid-state electronic circuit or electromechanical assembly tool season.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB991222237A CN1148854C (en) | 1999-11-03 | 1999-11-03 | Solar battery and its mutual load controlling system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB991222237A CN1148854C (en) | 1999-11-03 | 1999-11-03 | Solar battery and its mutual load controlling system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1295368A true CN1295368A (en) | 2001-05-16 |
| CN1148854C CN1148854C (en) | 2004-05-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB991222237A Expired - Fee Related CN1148854C (en) | 1999-11-03 | 1999-11-03 | Solar battery and its mutual load controlling system |
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| Country | Link |
|---|---|
| CN (1) | CN1148854C (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100547851C (en) * | 2007-12-06 | 2009-10-07 | 中国科学院电工研究所 | Lithium ion battery-super capacitor mixed energy storage optical voltage system |
| CN104011873A (en) * | 2011-12-22 | 2014-08-27 | 太阳能公司 | Circuits and methods for limiting open circuit voltage of photovoltaic strings |
-
1999
- 1999-11-03 CN CNB991222237A patent/CN1148854C/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100547851C (en) * | 2007-12-06 | 2009-10-07 | 中国科学院电工研究所 | Lithium ion battery-super capacitor mixed energy storage optical voltage system |
| CN104011873A (en) * | 2011-12-22 | 2014-08-27 | 太阳能公司 | Circuits and methods for limiting open circuit voltage of photovoltaic strings |
| CN104011873B (en) * | 2011-12-22 | 2017-05-03 | 太阳能公司 | Circuits and methods for limiting open circuit voltage of photovoltaic strings |
| CN107039948A (en) * | 2011-12-22 | 2017-08-11 | 太阳能公司 | Circuit and method for the open-circuit voltage that limits photovoltaic string |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1148854C (en) | 2004-05-05 |
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