CN108899951A - Super capacitor two close cycles buck charging control circuit based on pressure stabilizing output type - Google Patents
Super capacitor two close cycles buck charging control circuit based on pressure stabilizing output type Download PDFInfo
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- CN108899951A CN108899951A CN201810796757.4A CN201810796757A CN108899951A CN 108899951 A CN108899951 A CN 108899951A CN 201810796757 A CN201810796757 A CN 201810796757A CN 108899951 A CN108899951 A CN 108899951A
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J2207/00—Indexing scheme relating to details of circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J2207/20—Charging or discharging characterised by the power electronics converter
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Abstract
The present invention relates to a kind of super capacitor two close cycles buck charging control circuit based on pressure stabilizing output type.The present invention includes power supply and buck main circuit, telemetry circuit, specifically includes super capacitor, metal-oxide-semiconductor, chip, voltage amplifier, electric current amplifier, detection amplifier, power supply voltage-stabiliser tube, given voltage-stabiliser tube, driving voltage-stabiliser tube, diode, filter inductance, transformation inductance, power capacitor, given capacitor, driving capacitor, transformation capacitor, feedback capacity, positive voltage terminal capacitor, voltage negative terminal capacitor, electric current negative terminal capacitor, electric current anode capacitor, detection capacitor etc..The control function that there is the present invention dynamic constant-current charge, stable state pressure stabilizing to charge, safe and reliable, quick pressure stabilizing charging and pressure stabilizing control are carried out to ensure super capacitor under wide charge power supply voltage conditions, circuit of the present invention is simple, at low cost, high reliablity, versatility are good, is easy to modularization, product seriation.
Description
Technical field
The invention belongs to industrial measurement and control fields, are related to a kind of circuit, in particular to a kind of based on the super of pressure stabilizing output type
Capacitor two close cycles buck charging control circuit, suitable for using the application of super capacitor energy-storage, power supply and continuation of the journey control.
Background technique
Super capacitor obtains increasingly extensive in terms of modern new energy energy storage, the continuation of the journey power supply of all kinds of the army and the people's equipment are with control
Application.One of major issue in super capacitor application technology is exactly in supply voltage broad range, according to super
The voltage rating constraint requirements of capacitor, carry out pressure stabilizing quick charge control problem, and currently used type voltage regulation charging method exists
It is disadvantageous in that：First is that initial charge current impact is unable to control greatly, and settling time is long；Second is that being based on dedicated perseverance
Flow pressure stabilizing charging chip scheme it is applicable super capacitor energy-storage capacity it is small, and the circuit in existing scheme is more complex, cost compared with
It is high.Therefore, one kind how is designed under the constraint of super capacitor voltage rating, is carried out in wide charge power supply supply voltage condition
Efficiently, super capacitor charge control scheme quickly, safe especially can be adapted to the high-voltage large-capacity in new energy electric power conversion
Stored energy application occasion is starting point of the invention.
Summary of the invention
The purpose of the present invention is in view of the deficienciess of the prior art, proposing a kind of super capacitor based on pressure stabilizing output type
Two close cycles buck charging control circuit.The circuit is to run on height of the high-power MOS tube as charging process of PWM control mode
Power control member is imitated, using PWM power supply chip as the gate driving circuit of high-power MOS tube, charging main circuit uses homopolarity
Property output type buck-boost type DC/DC translation circuit, and with full width amplifier (rail to rail amplifier) be double-closed-loop control electricity
Road, with the control energy that dynamic constant-current charge, stable state pressure stabilizing are charged, to ensure super capacitor in wide charge power supply voltage item
Safe and reliable, quick charging is carried out under part to control with pressure stabilizing.
Circuit of the present invention includes power supply and buck main circuit, telemetry circuit.
Power supply and buck main circuit include super capacitor SC1, PWM chip IC1, metal-oxide-semiconductor VT1, power supply voltage-stabiliser tube DW1,
Given voltage-stabiliser tube DW2, driving voltage-stabiliser tube DW3, diode D1, power capacitor C1, given capacitor C2, driving capacitor C3, transformation electricity
Hold C4, feedback capacity C5, filter inductance L1, transformation inductance L2, current-limiting resistance R1, voltage regulation resistance R2, driving resistance R3, grid electricity
Hinder R4, upper output resistance R5, lower output resistance R6, current sense resistor Rs, the circuit supply voltage end end+Us and current-limiting resistance R1
One end, drive the end the drain electrode end D connection of one end of resistance R3, metal-oxide-semiconductor VT1, the other end and accessory power supply of current-limiting resistance R1
The end voltage end+Vcc, the cathode of power supply voltage-stabiliser tube DW1, one end of power capacitor C1, voltage regulation resistance R2 connection, power supply voltage-stabiliser tube
The anode of DW1, the other end of power capacitor C1 are connect with the end input ground end GND1, the other end of voltage regulation resistance R2 and given electricity
One end of appearance C2, the cathode of given voltage-stabiliser tube DW2, the connection of the end reference voltage end Vref give the other end of capacitor C2, give surely
The anode of pressure pipe DW2 is connect with the end input ground end GND1, drives the other end of resistance R3 and the supply input of PWM chip IC1
The end IN, the cathode for driving voltage-stabiliser tube DW3, one end connection for driving capacitor C3 are held, anode, the driving capacitor of voltage-stabiliser tube DW3 are driven
The other end of C3 is connect with the end input ground end GND1, enable end/end ON of PWM chip IC1, the end ground terminal GND with input ground
The connection of the end GND1 is held, the output end OUT terminal of PWM chip IC1 is connect with one end of grid resistance R4, one end of grid resistance R4
The other end is connect with the grid G end of metal-oxide-semiconductor VT1, the end feedback end FB of PWM chip IC1 and the output end OUT of electric current amplifier IC3
One end of one end connection at end, electric current negative terminal resistance R13, the source S end of metal-oxide-semiconductor VT1 and transformation inductance L2, transformation capacitor C4
One end connection, the other end of transformation capacitor C4 are connect with one end of the cathode of diode D1, filter inductance L1, the sun of diode D1
Pole, current sense resistor Rs one end connect with the end input ground end GND1, the other end of transformation inductance L2 exports ground terminal GND2
Connection, one end, the anode+end of super capacitor SC1, circuit output voltage of the other end of filter inductance L1 and upper output resistance R5
The connection of the end end+Uout, one end, one end of feedback capacity C5, voltage of the other end of upper output resistance R5 and lower output resistance R6
One end of feedback resistance R9 connects, negative terminal-end of super capacitor SC1, the other end of lower output resistance R6, feedback capacity C5 it is another
One end, current sense resistor Rs the other end with output the end ground terminal GND2 connect.
Telemetry circuit includes voltage amplifier IC2, electric current amplifier IC3, detection amplifier IC4, feedback capacity C5, positive voltage terminal electricity
Hold C6, voltage negative terminal capacitor C7, electric current negative terminal capacitor C8, electric current anode capacitor C9, detection capacitor C10C10, voltage input resistance
R7, positive voltage terminal resistance R8, Voltage Feedback resistance R9, voltage negative terminal resistance R10, electric current input resistance R11, current feedback resistor
R12, electric current negative terminal resistance R13, electric current anode resistance R14, negative terminal detection resistance R15, amplification resistance R16, anode detection resistance
One end of R17, voltage input resistance R7 are connect with the end reference voltage end Vref, and the other end and voltage of voltage input resistance R7 is transported
The end positive input terminal IN+ of IC2, one end connection of positive voltage terminal capacitor C6 are put, the other end and voltage of positive voltage terminal capacitor C6 is just
One end connection of resistance R8 is held, the other end of positive voltage terminal resistance R8 is connect with the end input ground end GND1, and voltage amplifier IC2's is negative
The end input terminal IN- is connect with the other end of the one end voltage negative terminal capacitor C7, Voltage Feedback resistance R9, and voltage negative terminal capacitor C7 is another
End is connect with one end of voltage negative terminal resistance R10, the other end of voltage negative terminal resistance R10 and the output end OUT of voltage amplifier IC2
One end connection at end, electric current input resistance R11, the end positive power source terminal+V of voltage amplifier IC2 and accessory power supply voltage end+Vcc connect
It connects, the end ground terminal GND of voltage amplifier IC2 is connect with the end input ground end GND1, and the other end and electric current of electric current input resistance R11 is transported
The end negative input end IN- of IC3, one end connection of electric current negative terminal capacitor C8 are put, the other end and electric current of electric current negative terminal capacitor C8 is negative
Hold the other end connection of resistance R13, the end positive input terminal IN+ of electric current amplifier IC3 and one end, the electric current of current feedback resistor R12
One end of anode capacitor C9 connects, and the other end of electric current anode capacitor C9 is connect with one end of electric current anode resistance R14, and electric current is just
The end ground terminal GND of the other end, electric current amplifier IC3 of holding resistance R14 is connect with the end input ground end GND1, current feedback resistor
The other end of R12 is connect with one end of the output end OUT terminal of detection amplifier IC4, amplification resistance R16, and amplification resistance R16's is another
It holds and is connect with the end negative input end IN- of one end of negative terminal detection resistance R15, detection amplifier IC4, negative terminal detection resistance R15's is another
One end, detect capacitor C10C10 one end, detect amplifier IC4 the end ground terminal GND connect with the end input ground end GND1, detection transport
The end positive power source terminal+V for putting IC4 is connect with accessory power supply voltage end+Vcc, detects the end positive input terminal IN+ and the detection of amplifier IC4
One end connection of the other end, anode detection resistance R17 of capacitor C10C10, the other end and output ground of anode detection resistance R17
Hold the connection of the end GND2.
Beneficial effects of the present invention are as follows：
Ball bearing made scheme of the present invention based on power MOS pipe, PWM chip, operational amplifier etc. has dynamic constant current
The control function of charging, stable state pressure stabilizing charging, is carried out with to ensure super capacitor under wide charge power supply voltage conditions safely,
Reliably, quickly charging is controlled with pressure stabilizing, and the circuit arrangement circuit is simple, at low cost, high reliablity, versatility are good, is easy to mould
Block, product seriation.
Detailed description of the invention
Fig. 1 is circuit diagram of the invention.
Specific embodiment
The present invention will be further explained below with reference to the attached drawings.
As shown in Figure 1, a kind of super capacitor two close cycles buck charging control circuit based on pressure stabilizing output type, including electricity
Source and buck main circuit, telemetry circuit.
Power supply and buck main circuit include super capacitor SC1, PWM chip IC1, metal-oxide-semiconductor VT1, power supply voltage-stabiliser tube DW1,
Given voltage-stabiliser tube DW2, driving voltage-stabiliser tube DW3, diode D1, power capacitor C1, given capacitor C2, driving capacitor C3, transformation electricity
Hold C4, feedback capacity C5, filter inductance L1, transformation inductance L2, current-limiting resistance R1, voltage regulation resistance R2, driving resistance R3, grid electricity
Hinder R4, upper output resistance R5, lower output resistance R6, current sense resistor Rs, the circuit supply voltage end end+Us and current-limiting resistance R1
One end, drive the end the drain electrode end D connection of one end of resistance R3, metal-oxide-semiconductor VT1, the other end and accessory power supply of current-limiting resistance R1
The end voltage end+Vcc, the cathode of power supply voltage-stabiliser tube DW1, one end of power capacitor C1, voltage regulation resistance R2 connection, power supply voltage-stabiliser tube
The anode of DW1, the other end of power capacitor C1 are connect with the end input ground end GND1, the other end of voltage regulation resistance R2 and given electricity
One end of appearance C2, the cathode of given voltage-stabiliser tube DW2, the connection of the end reference voltage end Vref give the other end of capacitor C2, give surely
The anode of pressure pipe DW2 is connect with the end input ground end GND1, drives the other end of resistance R3 and the supply input of PWM chip IC1
The end IN, the cathode for driving voltage-stabiliser tube DW3, one end connection for driving capacitor C3 are held, anode, the driving capacitor of voltage-stabiliser tube DW3 are driven
The other end of C3 is connect with the end input ground end GND1, enable end/end ON of PWM chip IC1, the end ground terminal GND with input ground
The connection of the end GND1 is held, the output end OUT terminal of PWM chip IC1 is connect with one end of grid resistance R4, one end of grid resistance R4
The other end is connect with the grid G end of metal-oxide-semiconductor VT1, the end feedback end FB of PWM chip IC1 and the output end OUT of electric current amplifier IC3
One end of one end connection at end, electric current negative terminal resistance R13, the source S end of metal-oxide-semiconductor VT1 and transformation inductance L2, transformation capacitor C4
One end connection, the other end of transformation capacitor C4 are connect with one end of the cathode of diode D1, filter inductance L1, the sun of diode D1
Pole, current sense resistor Rs one end connect with the end input ground end GND1, the other end of transformation inductance L2 exports ground terminal GND2
Connection, one end, the anode+end of super capacitor SC1, circuit output voltage of the other end of filter inductance L1 and upper output resistance R5
The connection of the end end+Uout, one end, one end of feedback capacity C5, voltage of the other end of upper output resistance R5 and lower output resistance R6
One end of feedback resistance R9 connects, negative terminal-end of super capacitor SC1, the other end of lower output resistance R6, feedback capacity C5 it is another
One end, current sense resistor Rs the other end with output the end ground terminal GND2 connect.
Telemetry circuit includes voltage amplifier IC2, electric current amplifier IC3, detection amplifier IC4, feedback capacity C5, positive voltage terminal electricity
Hold C6, voltage negative terminal capacitor C7, electric current negative terminal capacitor C8, electric current anode capacitor C9, detection capacitor C10, voltage input resistance R7,
Positive voltage terminal resistance R8, Voltage Feedback resistance R9, voltage negative terminal resistance R10, electric current input resistance R11, current feedback resistor
R12, electric current negative terminal resistance R13, electric current anode resistance R14, negative terminal detection resistance R15, amplification resistance R16, anode detection resistance
One end of R17, voltage input resistance R7 are connect with the end reference voltage end Vref, and the other end and voltage of voltage input resistance R7 is transported
The end positive input terminal IN+ of IC2, one end connection of positive voltage terminal capacitor C6 are put, the other end and voltage of positive voltage terminal capacitor C6 is just
One end connection of resistance R8 is held, the other end of positive voltage terminal resistance R8 is connect with the end input ground end GND1, and voltage amplifier IC2's is negative
The end input terminal IN- is connect with the other end of the one end voltage negative terminal capacitor C7, Voltage Feedback resistance R9, and voltage negative terminal capacitor C7 is another
End is connect with one end of voltage negative terminal resistance R10, the other end of voltage negative terminal resistance R10 and the output end OUT of voltage amplifier IC2
One end connection at end, electric current input resistance R11, the end positive power source terminal+V of voltage amplifier IC2 and accessory power supply voltage end+Vcc connect
It connects, the end ground terminal GND of voltage amplifier IC2 is connect with the end input ground end GND1, and the other end and electric current of electric current input resistance R11 is transported
The end negative input end IN- of IC3, one end connection of electric current negative terminal capacitor C8 are put, the other end and electric current of electric current negative terminal capacitor C8 is negative
Hold the other end connection of resistance R13, the end positive input terminal IN+ of electric current amplifier IC3 and one end, the electric current of current feedback resistor R12
One end of anode capacitor C9 connects, and the other end of electric current anode capacitor C9 is connect with one end of electric current anode resistance R14, and electric current is just
The end ground terminal GND of the other end, electric current amplifier IC3 of holding resistance R14 is connect with the end input ground end GND1, current feedback resistor
The other end of R12 is connect with one end of the output end OUT terminal of detection amplifier IC4, amplification resistance R16, and amplification resistance R16's is another
It holds and is connect with the end negative input end IN- of one end of negative terminal detection resistance R15, detection amplifier IC4, negative terminal detection resistance R15's is another
One end, detect capacitor C10 one end, detect amplifier IC4 the end ground terminal GND connect with the end input ground end GND1, detection amplifier
The end positive power source terminal+V of IC4 is connect with accessory power supply voltage end+Vcc, detects the end positive input terminal IN+ and the detection electricity of amplifier IC4
Hold one end connection of the other end, anode detection resistance R17 of C10, the other end and output ground terminal GND2 of anode detection resistance R17
End connection.
Used in the present invention includes metal-oxide-semiconductor VT1, PWM chip IC1, voltage amplifier IC2, electric current amplifier IC3, detection fortune
It puts all devices including IC4, current sense resistor Rs etc. and is all made of existing matured product, can be obtained by market.Example
Such as：Metal-oxide-semiconductor is managed using IRF series MOSFET, and PWM chip uses LM2575ADJ, and voltage amplifier, electric current amplifier, detection amplifier are equal
Using TLC2264, current sense resistor is using LRA type copper-manganese resistance etc..
Main circuit parameter matching relationship in the present invention is as follows：
If：Circuit supply voltage is Us(unit：V), circuit accessory power supply voltage is Vcc(unit：V), charge given voltage
For Vref(unit：V), the voltage rating of super capacitor is UscN(unit：V), the maximum charging current of super capacitor is IscmIt is (single
Position：A), metal-oxide-semiconductor grid source drive voltage threshold is Ugsth(unit：V), the pressure stabilizing value of pressure limiting voltage-stabiliser tube DW2 is Udw2(unit：
V), R2、R3、R5、R6Respectively voltage regulation resistance R2, divider resistance R3, driving resistance R4, upper output resistance R5, lower output resistance R6
Resistance value (unit：Ω), R7、R8、R9、R10Respectively voltage input resistance R7, positive voltage terminal resistance R8, Voltage Feedback resistance R9,
Resistance value (the unit of voltage negative terminal resistance R10：Ω), R11、R12、R13、R14Respectively electric current input resistance R11, current feedback resistor
Resistance value (the unit of R12, electric current negative terminal resistance R13, electric current anode resistance R14：Ω), R15、R16Respectively negative terminal detection resistance
R15, the resistance value (unit for amplifying resistance R16：Ω), C6、C7、C8、C9Respectively piezoelectric voltage anode capacitor C6, voltage negative terminal capacitor
Capacitance (the unit of C7, electric current negative terminal capacitor C8, electric current anode capacitor C9：F), voltage amplifier IC2, electric current amplifier IC3, detection
Amplifier IC4 is full width amplifier (Rail to Rail amplifier).Then, the parameter coordination relationship of circuit is as follows：
R7=R9 (1)
R8=R10 (2)
R11=R12 (3)
R13=R14 (4)
C6=C7 (5)
C8=C9 (6)
Ugsth< Us (7)
The course of work of the present invention is as follows：
(1) generation of accessory power supply voltage：Pressure stabilizing electricity is made of current-limiting resistance R1, power capacitor C1, power supply voltage-stabiliser tube DW1
Road, pressure stabilizing value are accessory power supply voltage Vcc(unit：V), as the power supply of control circuit.
(2) the given voltage signal V of charging voltagerefGeneration：By voltage regulation resistance R2, given capacitor C2, given voltage-stabiliser tube
DW2 etc. is generated.
(3) the circuit course of work：In circuit of the present invention, voltage amplifier IC2 and its composition PI type charging of periphery RC element
Voltage close loop adjuster, voltage feedback signal are derived from the voltage that output resistance R5, lower output resistance R6, feedback capacity C5 are constituted
Detection circuit, the output valve of voltage amplifier IC2 are closed as forming PI type charging current with electric current amplifier IC2 and its periphery RC element
The given value of ring adjuster, and current feedback signal is derived from current sense resistor Rs and detection amplifier IC4 and its peripheral circuit etc.
The current amplification circuit of composition, shown in parameter coordination relationship therein such as formula (9).Because in the dynamic process of charging, voltage is transported
IC2 output saturation is put, charging current is made to keep maximum to realize quick charge, when stable state, keeps super capacitor charging voltage
In its voltage rating.In addition, the output signal of electric current amplifier IC2 drives metal-oxide-semiconductor VT1 as the command signal of PWM chip, and
Liter through being formed with metal-oxide-semiconductor VT1, diode D1, filter inductance L1, transformation inductance L2, transformation capacitor C4, super capacitor SC1 etc.
Voltage-dropping type DC/DC translation circuit carries out charging controller.
Claims (2)
1. the super capacitor two close cycles buck charging control circuit based on pressure stabilizing output type, including power supply and the main electricity of buck
Road, telemetry circuit, it is characterised in that：
Power supply and buck main circuit include super capacitor SC1, PWM chip IC1, metal-oxide-semiconductor VT1, power supply voltage-stabiliser tube DW1, give
Voltage-stabiliser tube DW2, driving voltage-stabiliser tube DW3, diode D1, power capacitor C1, given capacitor C2, driving capacitor C3, transformation capacitor C4,
Feedback capacity C5, filter inductance L1, transformation inductance L2, current-limiting resistance R1, voltage regulation resistance R2, driving resistance R3, grid resistance R4,
The one of upper output resistance R5, lower output resistance R6, current sense resistor Rs, the circuit supply voltage end end+Us and current-limiting resistance R1
The end the drain electrode end D connection at end, one end of driving resistance R3, metal-oxide-semiconductor VT1, the other end and accessory power supply voltage of current-limiting resistance R1
The end end+Vcc, the cathode of power supply voltage-stabiliser tube DW1, one end of power capacitor C1, voltage regulation resistance R2 connection, power supply voltage-stabiliser tube DW1's
Anode, power capacitor C1 the other end connect with the end input ground end GND1, the other end of voltage regulation resistance R2 and given capacitor C2
One end, the cathode of given voltage-stabiliser tube DW2, the connection of the end reference voltage end Vref, give the other end, the given voltage-stabiliser tube of capacitor C2
The anode of DW2 is connect with the end input ground end GND1, drives the other end of resistance R3 and the energization input IN of PWM chip IC1
It holds, the cathode of driving voltage-stabiliser tube DW3, one end connection for driving capacitor C3, drives the anode of voltage-stabiliser tube DW3, drives capacitor C3's
The other end is connect with the end input ground end GND1, and enable end/end ON of PWM chip IC1, the end ground terminal GND are and input ground end
The connection of the end GND1, the output end OUT terminal of PWM chip IC1 connect with one end of grid resistance R4, one end of grid resistance R4 it is another
One end is connect with the grid G end of metal-oxide-semiconductor VT1, the output end OUT terminal of the end feedback end FB of PWM chip IC1 and electric current amplifier IC3,
One end of electric current negative terminal resistance R13 connects, one end of the source S end of metal-oxide-semiconductor VT1 and transformation inductance L2, transformation capacitor C4 one
End connection, the other end of transformation capacitor C4 are connect with one end of the cathode of diode D1, filter inductance L1, the sun of diode D1
Pole, current sense resistor Rs one end connect with the end input ground end GND1, the other end of transformation inductance L2 exports ground terminal GND2
Connection, one end, the anode+end of super capacitor SC1, circuit output voltage of the other end of filter inductance L1 and upper output resistance R5
The connection of the end end+Uout, one end, one end of feedback capacity C5, voltage of the other end of upper output resistance R5 and lower output resistance R6
One end of feedback resistance R9 connects, negative terminal-end of super capacitor SC1, the other end of lower output resistance R6, feedback capacity C5 it is another
One end, current sense resistor Rs the other end with output the end ground terminal GND2 connect；
Telemetry circuit includes voltage amplifier IC2, electric current amplifier IC3, detection amplifier IC4, feedback capacity C5, positive voltage terminal capacitor
C6, voltage negative terminal capacitor C7, electric current negative terminal capacitor C8, electric current anode capacitor C9, detection capacitor C9, voltage input resistance R7, electricity
Positive pressure end resistance R8, Voltage Feedback resistance R9, voltage negative terminal resistance R10, electric current input resistance R11, current feedback resistor R12,
Electric current negative terminal resistance R13, electric current anode resistance R14, negative terminal detection resistance R15, amplification resistance R16, anode detection resistance R17,
One end of voltage input resistance R7 is connect with the end reference voltage end Vref, the other end and voltage amplifier of voltage input resistance R7
One end connection at the end positive input terminal IN+, positive voltage terminal capacitor C6 of IC2, the other end and positive voltage terminal of positive voltage terminal capacitor C6
One end of resistance R8 connects, and the other end of positive voltage terminal resistance R8 is connect with the end input ground end GND1, and bearing for voltage amplifier IC2 is defeated
Enter to hold the end IN- and the other end of the one end voltage negative terminal capacitor C7, Voltage Feedback resistance R9 to connect, the voltage negative terminal capacitor C7 other end
It is connect with one end of voltage negative terminal resistance R10, the other end of voltage negative terminal resistance R10 and the output end OUT of voltage amplifier IC2
One end connection at end, electric current input resistance R11, the end positive power source terminal+V of voltage amplifier IC2 and accessory power supply voltage end+Vcc connect
It connects, the end ground terminal GND of voltage amplifier IC2 is connect with the end input ground end GND1, and the other end and electric current of electric current input resistance R11 is transported
The end negative input end IN- of IC3, one end connection of electric current negative terminal capacitor C8 are put, the other end and electric current of electric current negative terminal capacitor C8 is negative
Hold the other end connection of resistance R13, the end positive input terminal IN+ of electric current amplifier IC3 and one end, the electric current of current feedback resistor R12
One end of anode capacitor C9 connects, and the other end of electric current anode capacitor C9 is connect with one end of electric current anode resistance R14, and electric current is just
The end ground terminal GND of the other end, electric current amplifier IC3 of holding resistance R14 is connect with the end input ground end GND1, current feedback resistor
The other end of R12 is connect with one end of the output end OUT terminal of detection amplifier IC4, amplification resistance R16, and amplification resistance R16's is another
It holds and is connect with the end negative input end IN- of one end of negative terminal detection resistance R15, detection amplifier IC4, negative terminal detection resistance R15's is another
One end, detect capacitor C9 one end, detect amplifier IC4 the end ground terminal GND connect with the end input ground end GND1, detection amplifier
The end positive power source terminal+V of IC4 is connect with accessory power supply voltage end+Vcc, detects the end positive input terminal IN+ and the detection electricity of amplifier IC4
Hold one end connection of the other end, anode detection resistance R17 of C9, the other end and output ground terminal GND2 of anode detection resistance R17
End connection.
2. the super capacitor two close cycles buck charging control circuit according to claim 1 based on pressure stabilizing output type,
It is characterized in that circuit parameter matching relationship is as follows：
If：Circuit supply voltage is Us, circuit accessory power supply voltage is Vcc, charging given voltage is Vref, super capacitor it is specified
Voltage is UscN, the maximum charging current of super capacitor is Iscm, metal-oxide-semiconductor grid source drive voltage threshold is Ugsth, pressure limiting pressure stabilizing
The pressure stabilizing value of pipe DW2 is Udw2, R2、R3、R5、R6Respectively voltage regulation resistance R2, divider resistance R3, driving resistance R4, upper output electricity
Hinder the resistance value of R5, lower output resistance R6, R7、R8、R9、R10Respectively voltage input resistance R7, positive voltage terminal resistance R8, voltage are anti-
The resistance value of feed resistance R9, voltage negative terminal resistance R10, R11、R12、R13、R14Respectively electric current input resistance R11, current feedback resistor
The resistance value of R12, electric current negative terminal resistance R13, electric current anode resistance R14, R15、R16Respectively negative terminal detection resistance R15, amplification electricity
Hinder the resistance value of R16, C6、C7、C8、C9Respectively piezoelectric voltage anode capacitor C6, voltage negative terminal capacitor C7, electric current negative terminal capacitor C8, electricity
The capacitance of anode capacitor C9 is flowed, voltage amplifier IC2, electric current amplifier IC3, detection amplifier IC4 are full width amplifier；Then circuit
Parameter coordination relationship is as follows：
R7=R9 (1)
R8=R10 (2)
R11=R12 (3)
R13=R14 (4)
C6=C7 (5)
C8=C9 (6)
Ugsth< Us (7)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810796757.4A CN108899951B (en) | 2018-07-19 | 2018-07-19 | Super capacitor double closed-loop buck-boost charging control circuit based on voltage stabilization output type |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810796757.4A CN108899951B (en) | 2018-07-19 | 2018-07-19 | Super capacitor double closed-loop buck-boost charging control circuit based on voltage stabilization output type |
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| Publication Number | Publication Date |
|---|---|
| CN108899951A true CN108899951A (en) | 2018-11-27 |
| CN108899951B CN108899951B (en) | 2020-08-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810796757.4A Active CN108899951B (en) | 2018-07-19 | 2018-07-19 | Super capacitor double closed-loop buck-boost charging control circuit based on voltage stabilization output type |
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| CN108899951B (en) | 2020-08-04 |
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