CN206962519U - A kind of monolithic processor controlled portable type solar energy power supply - Google Patents
A kind of monolithic processor controlled portable type solar energy power supply Download PDFInfo
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- CN206962519U CN206962519U CN201720892847.4U CN201720892847U CN206962519U CN 206962519 U CN206962519 U CN 206962519U CN 201720892847 U CN201720892847 U CN 201720892847U CN 206962519 U CN206962519 U CN 206962519U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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Abstract
A kind of monolithic processor controlled portable type solar energy power supply, the direct current of battery power conversion specific voltage is supplied into external electrical equipment for realizing solar cell or external power adapter to internal lithium cell charging, and by voltage conversion circuit.Shown including solar cell, external 12V DC power supply, lithium battery charging management circuit, lithium battery group, high-side current detection circuit, DC voltage conversion circuit, charged state sample circuit, lithium battery voltage sample circuit, discharge current sample circuit, DC converting voltage sampling circuit, single-chip microcomputer and LCD, associated satellite, the control circuit such as LED is shown, operating key.The utility model overcome existing portable type solar energy power supply existing for safeguard protection defect, extend the service life of lithium battery, meet the requirement of portable type solar energy power supply.
Description
Technical field
Technical field of electric power is the utility model is related to, particularly a kind of monolithic processor controlled portable type solar energy power supply.
Background technology
Portable type solar energy power supply can utilize the sun because its is green, is easy to carry in the occasion for lacking supply of electric power
The mini electrical equipment power supply such as the electric energy of energy battery or built-in lithium battery is for a long time mobile phone, tablet personal computer, instrument and meter,
In people's work, life, especially relatively broad application has been obtained under the particular surroundings such as tourism and field work.Portable
In formula sun-generated electric power, Charge Management, DC voltage conversion and correlated sampling, control circuit are the important composition of power-supply system
Part, determine power supply can it is safe and reliable, lasting, efficiently work.At present, the existing many types of in the market is portable
Sun-generated electric power, but following problems mostly be present.
1st, detection of the existing portable type solar energy power supply to charging, discharging electric batteries electric current is surveyed using low frontier inspection mostly, that is, is examined
Leakage resistance is connected with grounded circuit, and its shortcoming is that inspection leakage resistance adds extra impedance in grounded circuit, operating current compared with
Inspection leakage resistance can introduce stronger grounding interference when big, and more crucially this mode can not detect anode and ground is unexpected
Short circuit current when short-circuit, larger security risk is caused to power-supply system.
2nd, common portable type solar energy power supply is only accurately sampled to cell voltage, the charge and discharge electric current to battery
Detection not enough it is accurate rationally, comprehensive monitoring is not carried out to input, output voltage, it is impossible to when power supply and load go wrong and
When the related circuit of shut-off, it is not perfect enough with the protection mechanism of load equipment in itself to power supply.
Utility model content
The defects of the purpose of this utility model is to overcome existing portable type solar energy power supply to exist, for the portable sun
The use demand of energy power supply, develops a kind of battery management and voltage detecting is more accurate, over-voltage over-current protection is more intelligent, more complete
Face, can more safe and reliable, lasting, efficient operation monolithic processor controlled portable type solar energy power supply.
To realize above-mentioned technical purpose, used technical scheme is：A kind of monolithic processor controlled portable type solar energy electricity
Source, including solar cell, external 12V DC power supply, lithium battery charging management circuit, lithium battery group, high side current detection electricity
Road, DC voltage conversion circuit, charged state sample circuit, lithium battery voltage sample circuit, discharge current sample circuit, direct current
Voltage of transformation sample circuit, single-chip microcomputer, LCD display circuit, LED display circuit and operating key, solar cell and external 12V are straight
Flow power supply to power to lithium battery group by lithium battery charging management circuit, lithium battery charging management circuit is sampled by charged state
Circuit couples with single-chip microcomputer, and lithium battery group is coupled by lithium battery voltage sample circuit with single-chip microcomputer, and lithium battery group passes through flash
Current detection circuit is powered to DC voltage conversion circuit, and DC voltage conversion circuit provides+5V power supplies, direct current for single-chip microcomputer
Pressure translation circuit simultaneously provides+5V and+12V power supplies for external electrical equipment, and high-side current detection circuit is sampled by discharge current
Circuit couples with single-chip microcomputer, and DC voltage conversion circuit is coupled by DC converting voltage sampling circuit with single-chip microcomputer, single-chip microcomputer
The control signal with lithium battery charging management circuit, high-side current detection circuit, DC voltage conversion circuit is connected respectively, single
Also connection has operating key on input on piece machine, and also coupling in the output end of single-chip microcomputer has LCD display circuit, LED display electricity
Road.
Single-chip microcomputer described in the utility model is STC15.
The positive pole of solar cell described in the utility model and external 12V DC power supply couples Schottky diode respectively
D212 positive pole, Schottky diode D211 positive pole, Schottky diode D212 negative poles and Schottky diode D211's is negative
Extremely GND couples with power supply, Schottky diode D212 negative pole, Schottky diode D211 negative pole and U201 VCC
End connection, as the input voltage positive pole Vin+ of lithium battery charging management circuit；
In lithium battery charging management circuit, the latter termination Vin+ of divider resistance R211, divider resistance R212 series connection, partial pressure electricity
The center-side of resistance R211, divider resistance R212 other ends ground connection, divider resistance R211 and divider resistance R212 connections is born with ZD211
Extremely it is connected with control chip U101 P1.3 ends, ZD211 plus earths；LED201 positive poles connected with resistance R201 after with Vin+
Connection, LED201 negative poles be connecteds with control chip U201 CHEG ends and resistance R213 one end respectively, the resistance R213 other ends and
It is grounded after resistance R214 series connection, the center-side of resistance R213 and resistance R214 connections is connected with single-chip microcomputer U101 P1.2,
LED202 positive pole and resistance R202 are connected after connecting with Vin+, LED202 negative pole DONE ends with control chip U201 respectively
And the connection of resistance R215 one end, the resistance R215 other ends are grounded after being connected with resistance R216, resistance R215 connects with resistance R216
Center-side be connected with single-chip microcomputer U101 P1.1, Q201 grids connect control chip U201 DRV ends, and Q201 source electrodes connect control core
Piece U201 VCC ends, Q201, which drains, connects D201 positive pole, and D201 negative pole, D202 negative pole and L201 one end are connected, D202's
Plus earth, the CSP ends with control chip U201, L201 are connected respectively for charge current sample resistance Rcs one end, and charging current is adopted
1 end of the sample resistance Rcs other ends and electric capacity C206 positive pole, control chip U201 BAT ends and SW201 is connected, electric capacity C206
Negative pole ground connection, Q202 grid connects U101 P2.0 ends, and Q202 source electrodes meet GND, and Q202 drain electrodes connect control chip U201's
TEMP ends, when single-chip microcomputer U201 P2.0 ends export high level, Q202 conductings, U201 TEMP ends are set to low level, can
Charge closing is controlled, when single-chip microcomputer U201 P2.0 ends export low level, Q202 cut-offs, U201 normal works；
Battery main switch SW201 1 termination lithium battery charging management circuit output current sampling resistor Rcs and C206 is just
Pole, the positive pole of battery main switch SW201 2 termination lithium battery groups, after battery main switch SW201 3 ends, 4 end short circuits with lithium electricity
Cell voltage sampling resistor R222 and the control chip U202 of high-side current detection circuit RS+ ends connect.
The control chip U202 of high-side current detection circuit described in the utility model RS+ ends and battery main switch
SW201 3 ends are connected, and are connected by battery main switch SW201 and lithium battery positive pole, control chip U202 RS- ends point
It is not connected with control chip U301, control chip U311, the respective Vin ends of control chip U321, control chip U202 OUT terminal
The P1.5 ends with single-chip microcomputer U101, ZD221 negative pole and resistance R221 are connected respectively, resistance R221 other ends ground connection, ZD221's
Plus earth, the current value of control chip U202 OUT terminal output are converted to magnitude of voltage on R221, then by single-chip microcomputer U101
A/D converter be converted to digital value, for judging the discharge condition of lithium battery, control chip U202 SHDN ends and single-chip microcomputer
Whether U101 P2.1 ends connection, the Automatic level control U202 exported by U101 P2.1 ends carry out current sample；
Lithium battery anode connects control chip U301, control chip in DC voltage conversion circuit respectively through control chip U202
The respective Vin ends of U311, control chip U321, control chip U301 Vout outputs+5V meet single-chip microcomputer U101 and LCD VCC
End, is U101 and LCD and associated satellite circuit is powered, and control chip U311 Vout ends and L311, D311 negative pole are connected, group
Into BUCK reduction voltage circuits, control chip U311 exports 1 ends of the DCout 5V through socket JP311 and powered for load equipment, ON/OFF
Hold the P2.2 ends with single-chip microcomputer U101 to be connected, its working condition, single-chip microcomputer U101 P1.6 ends and resistance are controlled by single-chip microcomputer
R312 one end, resistance R313 one end is connected, another termination+5V voltage transformations output ends of resistance R312, and resistance R313 is another
End ground connection, partial pressure value is limited in below 4.7V by the partial pressure value of+5V output voltages through resistance R312, resistance R313 by ZD311, right
Single-chip microcomputer input after protective effect, the partial pressure value by U101 P1.6 ends inside A/D converter detect, by with setting
Value relatively after by U101 P2.2 ends control U311 ON/OFF ends, when+5V voltage transformation output voltages are too high or too low and
When turn off U311, so as to realize the protection pair+5V voltage conversion circuits and lithium battery.Control chip U321 SW ends and L321,
D321 is connected and forms BUCK booster circuits, and D321 negative pole is connected output+12V as load equipment confession with socket JP321 1 end
Electricity, control chip U321 EN ends are connected with single-chip microcomputer U101 P2.3 ends, and single-chip microcomputer U101 P1.7 ends are with resistance R324's
One end, resistance R325 one end are connected, resistance R324 another termination+12V voltage transformation output ends, another terminations of resistance R325
Partial pressure value is limited in below 4.7V by ground, the partial pressure value of+12V output voltages through R324, R325 by ZD321, and single-chip microcomputer is inputted
After protective effect, the partial pressure value is detected by A/D converter inside U101 P1.6 ends at end, and is controlled by U101 P2.3 ends
U321 EN ends, U321 are turned off in time when+12V output voltages conversion output voltage is too high or too low, so as to realize a couple+12V
The protection of voltage conversion circuit and lithium battery.
In single-chip microcomputer and sampling and control circuit, U102 A ends are grounded, with C122's and U101 after K ends, R ends short circuit
P0.7 ends are connected, and are connected by R122 and Vcc, and 2.5V reference voltages are provided for A/D converter inside single-chip microcomputer.U101's
P1.3 ends and ZD211 negative pole and R211, R212 are connected, another termination charging input ends of R211, R212 other ends ground connection,
ZD211 plus earth, charging input voltage is after R211, R212 partial pressure and ZD211 protections, by A/D in U101 P1.3 ends
Converter is detected, and Q202 conducting and cut-off are controlled by U101 P2.0 ends, and U201 work and closing are controlled by Q202
State, U201 is turned off in time when realizing charging input voltage exception or lithium cell charging voltage over standard, so as to realize to charging electricity
Road and the protection of lithium battery.U101 P1.4 ends and R222, R223 is connected, and R222 connects lithium battery+end, R223 ground connection, lithium battery
Voltage is detected after R222, R223 partial pressure by A/D converter in U101 P1.4 ends, can be in lithium battery charging management circuit
On the basis of portion's protection, further strengthen carrying out offer charge and discharge protection to lithium battery.U101 P1.5 ends, P1.6 ends, P1.7
End samples to lithium battery voltage ,+5V voltage transformations output voltage ,+12V voltage transformation output voltages respectively, P2.1 ends,
P2.2 ends, P2.3 ends control U202, U311 and U321 working condition respectively.
Control chip U201 described in the utility model is CN3702.
Control chip U202 described in the utility model is MAX471.
Control chip U311 described in the utility model is LM2596.
The utility model beneficial effect is：
1st, the utility model uses high side current detection technique in portable type solar energy power supply, can be more accurately to lithium
Charging, discharging electric batteries electric current carries out quantitative analysis, and can detect detection battery and short circuit current during ground accidental short circuit, improves
Current detection accuracy, overcomes the security risk that the low side electric current detecting method generally used is brought to power-supply system.
2nd, charging input voltage, charging and discharging lithium battery voltage and current, voltage conversion circuit output voltage are carried out comprehensive
Sampling and state-detection, can be provided for single-chip microcomputer on the more comprehensive electric current of power supply itself and load equipment, voltage and
Status information.
3rd, comprehensive control to charging circuit and voltage conversion circuit running status can be realized by single-chip microcomputer, can be in electricity
Source and load quickly and accurately turn off the circuit of correlation when going wrong, power supply is obtained in itself with load equipment comprehensively effectively
Protection.
4th, charging, current detecting and voltage transformation are all using the integrated-circuit implementation of maturation, high conversion efficiency, protection work(
Energy is strong, control method is flexible.5th, the charge mode combined using constant current/constant voltage and floating charge, charge efficiency is high, and can effectively prolong
Long service lifetime of accumulator, realize the intelligent charge management of lithium battery.
Brief description of the drawings
Fig. 1 is the composition frame chart of one embodiment of portable type solar energy power supply of the present utility model.
Fig. 2 is the circuit diagram of one embodiment of portable type solar energy power supply of the present utility model.
Fig. 3 is the electricity of the lithium battery charging management circuit of one embodiment of portable type solar energy power supply of the present utility model
Lu Tu.
Fig. 4 is the circuit of the high-side current detection circuit of one embodiment of portable type solar energy power supply of the present utility model
Figure.
Embodiment
The utility model is described in further detail with the following Examples.Portable type solar energy power supply group of the present utility model
Into block diagram as shown in figure 1, physical circuit figure is as shown in Figure 2.Portable type solar energy power supply of the present utility model, for realizing the sun
Battery power is changed the straight of specific voltage by energy battery or external power supply to internal lithium cell charging, and by voltage conversion circuit
Stream electricity supplies external electrical equipment.Including solar cell, external 12V DC power supply, lithium battery charging management circuit, lithium battery
Group, high-side current detection circuit, DC voltage conversion circuit, charged state sample circuit, lithium battery voltage sample circuit, electric discharge
The phase such as current sampling circuit, DC converting voltage sampling circuit, single-chip microcomputer and LCD display circuit, LED display circuit, operating key
Close attached, control circuit.Solar cell and external 12V DC power supply are supplied by lithium battery charging management circuit to lithium battery group
Electricity, lithium battery charging management circuit are coupled by charged state sample circuit with single-chip microcomputer, and lithium battery group passes through lithium battery voltage
Sample circuit couples with single-chip microcomputer, and lithium battery group is powered by high-side current detection circuit to DC voltage conversion circuit, direct current
Voltage conversion circuit provides+5V power supplies for single-chip microcomputer, and DC voltage conversion circuit simultaneously provides+5V and+12V for external electrical equipment
Power supply, high-side current detection circuit are coupled by discharge current sample circuit with single-chip microcomputer, and DC voltage conversion circuit passes through straight
Rheology is changed voltage sampling circuit and coupled with single-chip microcomputer, and single-chip microcomputer is electric with lithium battery charging management circuit, high side current detection respectively
Road, the control signal of DC voltage conversion circuit are connected, and also connection has operating key on the input on single-chip microcomputer, single-chip microcomputer
Also connection has LCD display circuit, LED display circuit in output end.
In lithium battery charging management circuit, divider resistance R211, R212 series connection latter termination Vin+, divider resistance R211,
The divider resistance R212 other ends are grounded, and its center-side is connected with ZD211 negative poles and U101 P1.3 ends, ZD211 positive poles pole ground connection.
LED201 positive poles are connected after being connected with R201 with Vin+, negative pole and U201 CHEG ends and the connection of R213 one end, the R213 other ends
It is grounded after being connected with R214.R213, R214 center-side and U101 P1.2 connections.LED202 positive poles connected with R202 after with
Vin+ connections, LED202 negative poles and U201 DONE ends and R215 one end connection, the R215 other ends are grounded after being connected with R216.
The center-side of R215, R216 concatenation and U101 P1.1 connections.Q201 grids connect U201 DRV ends, and Q201 source electrodes connect U201's
VCC ends, Q201, which drains, connects D201 positive pole.D201 negative pole, D202 negative pole are connected with L201 one end, and D202 positive pole connects
Ground.The CSP ends with U201, L201 are connected respectively for charge current sample resistance Rcs one end, the resistance Rcs other ends respectively with C206
Positive pole, U201 BAT ends and SW201 1 end be connected, C206 negative pole ground connection.Q202 grid connects U101 P2.0 ends,
Q202 source electrodes meet GND, and Q202, which drains, connects U201 TEMP ends.When single-chip microcomputer U201 P2.0 ends export high level, Q202 is led
It is logical, U201 TEMP ends are set to low level, can control charge closing.When single-chip microcomputer U201 P2.0 ends export low level,
Q202 ends, U201 normal works.Battery main switch SW201 1 termination lithium battery charging management circuit output current sampling electricity
Hinder Rcs and C206 positive pole, the positive pole of 2 termination lithium battery groups, after the end short circuit of 3 end 4 with lithium battery voltage sampling resistor R222 and
High side current detection chip U202 RS+ ends connection.In single-chip microcomputer and sampling and control circuit, U102 A ends ground connection, K ends, R
P0.7 ends after the short circuit of end with C122 and U101 are connected, and are connected by R122 and Vcc, are carried for A/D converter inside single-chip microcomputer
For 2.5V reference voltages.Single-chip microcomputer U101 P1.3 ends and ZD211 negative pole and R211, R212 are connected, another terminations of R211
Charging input end, R212 other ends ground connection, ZD211 plus earth, charging input voltage is through R211, R212 partial pressure and ZD211
After protection, detected by A/D converter in U101 P1.3 ends, and Q202 conducting and cut-off are controlled by U101 P2.0 ends, led to
Q202 controls U201 work and closed mode is crossed, is realized timely when charging input voltage exception or lithium cell charging voltage over standard
U201 is turned off, so as to realize the protection to charging circuit and lithium battery.Single-chip microcomputer U101 P1.4 ends and R222, R223 is connected,
R222 connects lithium battery+end, R223 ground connection, and lithium battery voltage is changed after R222, R223 partial pressure by A/D in U101 P1.4 ends
Device detects, can be on the basis of lithium battery charging management circuit internal protection, and further reinforcement carries out offer to lithium battery and fills, puts
Electric protection.U101 P1.5 ends, P1.6 ends, P1.7 ends is electric to lithium battery voltage ,+5V voltage transformations output voltage ,+12V respectively
Buckling is changed output voltage and sampled, and P2.1 ends, P2.2 ends, P2.3 ends control U202, U311 and U321 working condition respectively.
U311, U321 are turned off in time when+5V ,+12V voltage transformation output voltage are too high or too low, so as to realize a couple+5V ,+12V electricity
Press the protection of translation circuit and lithium battery.This portable type solar energy power supply to input voltage, lithium battery voltage and is put by single-chip microcomputer
Electric current, voltage conversion circuit output voltage is sampled and comprehensive monitoring, and is automatically performed according to programmed values to lithium electricity
Pond charge management circuit and voltage conversion circuit are switched on and off, so as to comprehensively and effectively real to power supply itself and load equipment
Now protect.
The circuit diagram of the lithium battery charging management circuit of portable type solar energy power supply of the present utility model is as shown in figure 3, lithium
Battery charging management circuit include U201, Q201, Q202, D201, D202, L201, LED201, LED202, Rcs with it is mutually powered-down
Resistance, capacity cell, PWM voltage-dropping type lithium battery charging management circuits are formed, there is constant current and constant-voltage charge pattern.Charging current is adopted
Sample resistance Rcs is connected between L201 and SW201, and is connected by SW201 and lithium battery BAT+ poles.R211, R212 are charging
Input voltage samples divider resistance, and connect latter termination Vin+, other end ground connection, its center-side and ZD211 negative poles and is connected,
ZD211 positive poles pole is grounded.R211, R212 partial pressure value are converted to digital value by A/D change-over circuits inside U201 P1.3 ends, are used for
Judge whether input voltage is normal, partial pressure value can be limited in below 4.7V by ZD211, to single-chip microcomputer input until protection is made
With.Q201 grids connect U201 DRV ends, and source electrode connects U201 VCC ends, and drain electrode connects D201 positive pole.D202 negative poles connect D201's
Negative pole is simultaneously connected, plus earth with L201.Rcs one end and the connection of L201, U201 CSP ends, the other end and C206 positive pole,
U201 BAT ends connection, and be connected by SW201 1 end with lithium battery BAT positive pole.Q202 grid meets U101 P2.0
End, source electrode meet GND, and drain electrode connects U201 TEMP ends, when single-chip microcomputer U201 P2.0 ends export high level, Q202 conductings,
U201 TEMP ends are set to low level, can control charge closing in the malfunction such as over-charging of battery or input voltage be exceeded, real
Now to charging circuit and the second protection of lithium battery.LED201 positive poles and R201 are connected after connecting with Vin+, negative pole and U201's
CHEG ends and the connection of R213 one end, the R213 other ends are grounded after being connected with R214.R213, R214 center-side and U101 P1.2
Connection.LED202 positive poles and R202 be connecteds after connecting with Vin+, and negative pole and U201 DONE ends and R215 one end connect, R215 is another
One end is grounded after being connected with R216.R215, R216 center-side and U101 P1.1 connections, it is whether complete to U201 for single-chip microcomputer
Into the condition adjudgement of charging.
The circuit diagram of the flash detection circuit of portable type solar energy power supply of the present utility model is as shown in figure 4, lithium battery is put
Electric current flash detection circuit includes U202, R221, and U202 RS+ ends and the positive pole of lithium battery are connected, RS- ends and voltage conversion
Circuit is connected, and OUT terminal and U101 P1.5 ends, ZD221 negative pole and R221 are connected, R221 other ends ground connection, ZD221 positive pole
Ground connection, the current value of OUT terminal output is converted to magnitude of voltage on R221, then is converted to digital value by the A/D converter in U101,
For judging the discharge condition of lithium battery, and by work of the U101 according to programmed values control U311, U321 or closed mode.
U202 SHDN ends and U101 P2.1 ends are connected, and whether the Automatic level control U202 exported by U101 P2.1 ends, which carries out electric current, is adopted
Sample.Detected using discharge current flash, can avoid examining the grounding interference that leakage resistance is connected and introduced with grounded circuit, and can ground
Anode and short circuit current during ground accidental short circuit are detected, effectively reduces the security risk of power-supply system.5V direct currents
Pressure translation circuit includes U311, L311, D311 and related resistors, capacity cell.Lithium battery anode meets U311 Vin through U202
End.U311 Vout ends and L311, D311 negative pole are connected, and form BUCK reduction voltage circuits, DCout 5V are through socket JP311 for output
1 end be load equipment power supply, ON/OFF ends and single-chip microcomputer U101 P2.2 ends be connected, and its working condition is controlled by single-chip microcomputer.
U101 P1.6 ends and R312, R313 is connected, another termination+5V voltage transformations output ends of R312, R313 other ends ground connection ,+5V
Partial pressure value is limited in below 4.7V by partial pressure value of the voltage through R312, R313 by ZD211, to single-chip microcomputer input until protection is made
With rear, the partial pressure value is detected by A/D converter inside U101 P1.6 ends, and U311 ON/OFF is controlled by U101 P2.2 ends
End, turn off U311 in time when+5V voltage transformation output voltages are too high or too low, so as to realize pair+5V voltage conversion circuits and
The protection of lithium battery.
Finally it should be noted that above example is merely to illustrate the technical solution of the utility model rather than to this practicality
The limitation of novel protected scope, although being explained in detail with reference to preferred embodiment to the utility model, the common skill of this area
Art personnel should be appreciated that and the technical solution of the utility model can be modified or equivalent substitution, without departing from this practicality
The spirit and scope of new technique scheme.
Claims (7)
- A kind of 1. monolithic processor controlled portable type solar energy power supply, it is characterised in that：Including solar cell, external 12V DC Power supply, lithium battery charging management circuit, lithium battery group, high-side current detection circuit, DC voltage conversion circuit, charged state are adopted Sample circuit, lithium battery voltage sample circuit, discharge current sample circuit, DC converting voltage sampling circuit, single-chip microcomputer, LCD show Show circuit, LED display circuit and operating key, solar cell and external 12V DC power supply pass through lithium battery charging management circuit Powered to lithium battery group, lithium battery charging management circuit is coupled by charged state sample circuit with single-chip microcomputer, and lithium battery group is led to Cross lithium battery voltage sample circuit with single-chip microcomputer to couple, lithium battery group is electric to DC voltage conversion by high-side current detection circuit Road powers, and DC voltage conversion circuit provides+5V power supplies for single-chip microcomputer, and DC voltage conversion circuit simultaneously carries for external electrical equipment Powered for+5V and+12V, high-side current detection circuit is coupled by discharge current sample circuit with single-chip microcomputer, DC voltage conversion Circuit is coupled by DC converting voltage sampling circuit with single-chip microcomputer, single-chip microcomputer respectively with lithium battery charging management circuit, flash Current detection circuit, the control signal of DC voltage conversion circuit are connected, and also connection has control on the input on single-chip microcomputer Key, also connection has LCD display circuit, LED display circuit in the output end of single-chip microcomputer.
- A kind of 2. monolithic processor controlled portable type solar energy power supply as claimed in claim 1, it is characterised in that：Described monolithic Machine is STC15.
- A kind of 3. monolithic processor controlled portable type solar energy power supply as claimed in claim 1, it is characterised in that：The described sun The positive pole of energy battery and external 12V DC power supply couples Schottky diode D212 positive pole, Schottky diode D211 respectively Positive pole, GND couples Schottky diode D212 negative poles and Schottky diode D211 negative pole with power supply, Schottky two Pole pipe D212 negative pole, Schottky diode D211 negative pole couple with U201 VCC ends, as lithium battery charging management circuit Input voltage positive pole Vin+；In lithium battery charging management circuit, the latter termination Vin+ of divider resistance R211, divider resistance R212 series connection, divider resistance The center-side and ZD211 negative poles of R211, divider resistance R212 other ends ground connection, divider resistance R211 and divider resistance R212 connections Couple with control chip U101 P1.3 ends, ZD211 plus earths；LED201 positive poles join after being connected with resistance R201 with Vin+ Connect, LED201 negative poles couple with control chip U201 CHEG ends and resistance R213 one end respectively, the resistance R213 other ends with electricity It is grounded after resistance R214 series connection, the center-side of resistance R213 and resistance R214 connections couples with single-chip microcomputer U101 P1.2, LED202 Positive pole connected with resistance R202 after couple with Vin+, LED202 negative pole respectively with control chip U201 DONE ends and resistance R215 one end couples, and the resistance R215 other ends are grounded after being connected with resistance R216, the center of resistance R215 and resistance R216 connections End couples with single-chip microcomputer U101 P1.1, and Q201 grids connect control chip U201 DRV ends, and Q201 source electrodes meet control chip U201 VCC ends, Q201, which drains, connects D201 positive pole, and D201 negative pole, D202 negative pole and L201 one end are connected, and D202 positive pole connects Ground, the CSP ends with control chip U201, L201 couple respectively for charge current sample resistance Rcs one end, charge current sample resistance 1 end of the Rcs other ends and electric capacity C206 positive pole, control chip U201 BAT ends and SW201 is connected, electric capacity C206 negative pole Ground connection, Q202 grid connect U101 P2.0 ends, and Q202 source electrodes meet GND, and Q202, which drains, connects control chip U201 TEMP ends, when During single-chip microcomputer U201 P2.0 ends output high level, Q202 conductings, U201 TEMP ends are set to low level, controllable closing is filled Electricity, when single-chip microcomputer U201 P2.0 ends export low level, Q202 cut-offs, U201 normal works；Battery main switch SW201 1 termination lithium battery charging management circuit output current sampling resistor Rcs and C206 positive pole, The positive pole of battery main switch SW201 2 termination lithium battery groups, after battery main switch SW201 3 ends, 4 end short circuits with lithium battery Press the connection of sampling resistor R222 and the control chip U202 of high-side current detection circuit RS+ ends.
- A kind of 4. monolithic processor controlled portable type solar energy power supply as claimed in claim 1, it is characterised in that：Described flash The control chip U202 of current detection circuit RS+ ends are connected with battery main switch SW201 3 ends, and pass through battery main switch The positive pole of SW201 and lithium battery is connected, control chip U202 RS- ends respectively with control chip U301, control chip U311, control The respective Vin ends of coremaking piece U321 are connected, control chip U202 OUT terminal the P1.5 ends with single-chip microcomputer U101, ZD221 respectively Negative pole and resistance R221 are connected, resistance R221 other ends ground connection, ZD221 plus earth；Lithium battery anode connects control chip U301, control chip in DC voltage conversion circuit respectively through control chip U202 The respective Vin ends of U311, control chip U321, control chip U301 Vout outputs+5V meet single-chip microcomputer U101 and LCD VCC End, is U101 and LCD and associated satellite circuit is powered, and control chip U311 Vout ends and L311, D311 negative pole are connected, group Into BUCK reduction voltage circuits, control chip U311 exports 1 ends of the DCout 5V through socket JP311 and powered for load equipment, ON/OFF The P2.2 ends with single-chip microcomputer U101 are held to be connected, single-chip microcomputer U101 P1.6 ends and resistance R312 one end, resistance R313 one end It is connected, another termination+5V voltage transformations output ends of resistance R312, resistance R313 other ends ground connection, control chip U321 SW ends It is connected with L321, D321 and forms BUCK booster circuits, D321 negative pole and socket JP321 1 the end output+12V that is connected is negative Equipment power supply is carried, control chip U321 EN ends are connected with single-chip microcomputer U101 P2.3 ends, single-chip microcomputer U101 P1.7 ends and electricity Resistance R324 one end, resistance R325 one end is connected, resistance R324 another termination+12V voltage transformation output ends, resistance R325 The other end is grounded.
- A kind of 5. monolithic processor controlled portable type solar energy power supply as claimed in claim 3, it is characterised in that：Described control Chip U201 is CN3702.
- A kind of 6. monolithic processor controlled portable type solar energy power supply as claimed in claim 3, it is characterised in that：Described control Chip U202 is MAX471.
- A kind of 7. monolithic processor controlled portable type solar energy power supply as claimed in claim 4, it is characterised in that：Described control Chip U311 is LM2596.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720892847.4U CN206962519U (en) | 2017-07-21 | 2017-07-21 | A kind of monolithic processor controlled portable type solar energy power supply |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720892847.4U CN206962519U (en) | 2017-07-21 | 2017-07-21 | A kind of monolithic processor controlled portable type solar energy power supply |
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| CN206962519U true CN206962519U (en) | 2018-02-02 |
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| CN201720892847.4U Expired - Fee Related CN206962519U (en) | 2017-07-21 | 2017-07-21 | A kind of monolithic processor controlled portable type solar energy power supply |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108806093A (en) * | 2018-06-21 | 2018-11-13 | 宁波绿炻光伏科技有限公司 | The Software for Design of portable type solar energy system with password |
| CN109245227A (en) * | 2018-10-26 | 2019-01-18 | 惠州市忠邦电子有限公司 | A kind of portable lithium battery power supply |
| CN112821535A (en) * | 2021-01-07 | 2021-05-18 | 郑州利凌电子科技有限公司 | Solar charging management circuit based on single chip microcomputer |
-
2017
- 2017-07-21 CN CN201720892847.4U patent/CN206962519U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108806093A (en) * | 2018-06-21 | 2018-11-13 | 宁波绿炻光伏科技有限公司 | The Software for Design of portable type solar energy system with password |
| CN109245227A (en) * | 2018-10-26 | 2019-01-18 | 惠州市忠邦电子有限公司 | A kind of portable lithium battery power supply |
| CN109245227B (en) * | 2018-10-26 | 2022-05-10 | 惠州市忠邦电子有限公司 | Portable lithium battery power supply |
| CN112821535A (en) * | 2021-01-07 | 2021-05-18 | 郑州利凌电子科技有限公司 | Solar charging management circuit based on single chip microcomputer |
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