CN213937517U

CN213937517U - Charging control system for super capacitor module

Info

Publication number: CN213937517U
Application number: CN202021838760.7U
Authority: CN
Inventors: 张明军; 孙林波; 李松松
Original assignee: SUZHOU TOPRUN ELECTRIC EQUIPMENT CO Ltd
Current assignee: SUZHOU TOPRUN ELECTRIC EQUIPMENT CO Ltd
Priority date: 2020-08-28
Filing date: 2020-08-28
Publication date: 2021-08-10
Anticipated expiration: 2030-08-28

Abstract

The utility model provides a charging control system for a super capacitor module, which can well meet the requirements of high-current quick charging, safety and high efficiency of super capacitor products; the charging management system comprises an AC/DC switching power supply circuit, a DC/DC voltage reduction switching power supply circuit and a charging management system circuit which are sequentially and electrically connected, wherein the AC/DC switching power supply circuit supplies power through alternating current commercial power, and is used for realizing the soft start of a switching power supply; the DC/DC voltage reduction switch power supply circuit is used for adjusting the output current voltage; the charging management system circuit is used for preventing electric energy from flowing backwards to damage the DC/DC power supply.

Description

Charging control system for super capacitor module

Technical Field

The utility model relates to a super capacitor module technical field specifically is a charge control system for super capacitor module.

Background

The super capacitor is used as a novel energy storage device in the current industrial field, and has the advantages of large power density, high charging speed, long cycle life, wide working temperature range, small environmental pollution and the like, and is widely applied to various fields and occasions such as urban rail transit, wind power generation, solar power generation, electric automobiles, military equipment, heavy machinery, the telecommunication industry, electric tools, electric toys and the like, and the super capacitor is inevitably subjected to charging in the using and maintaining processes, so that the charger is indispensable corollary equipment of a super-capacitor product, but the conventional lead-acid and lithium battery charging equipment on the market cannot well match the characteristics of the super capacitor, and the requirements of high-current quick charging, safety and high efficiency of the super capacitor product cannot be met.

Disclosure of Invention

To the problem, the utility model provides a charge control system for super capacitor module, it can satisfy super capacitor product heavy current quick charge, safety, efficient demand well.

Its technical scheme is like, a charge control system for super capacitor module, its characterized in that: the charging management system comprises an AC/DC switching power supply circuit, a DC/DC voltage reduction switching power supply circuit and a charging management system circuit which are sequentially and electrically connected, wherein the AC/DC switching power supply circuit supplies power through alternating current commercial power, and is used for realizing the soft start of a switching power supply; the DC/DC voltage reduction switch power supply circuit is used for adjusting the output current voltage; the charging management system circuit is used for preventing electric energy from flowing backwards to damage the DC/DC power supply.

It is further characterized in that:

the AC/DC switching power supply circuit comprises a fuse F1, a filter inductor L1, capacitors Cx1, Cx2, Cy1, Cy2, capacitors C1-C11, resistors R1-R18, voltage-stabilizing tubes D5-D10, diodes D1-D4, a switching transformer T1, switching tubes Q1, Q2, a controller U1, a shunt U2, a photoelectric coupler U3 and an inductor L2, wherein the controller U1 adopts a UCC28600DR control chip, the shunt U2 adopts a TL431CDBZR chip, and the photoelectric coupler U3 adopts a PC817 coupling chip; the alternating current mains supply sequentially passes through the fuse F, an EMI filter consisting of a filter inductor L, capacitors Cx, Cy and Cy, a rectifier bridge consisting of D-D and a capacitor C and then enters a primary winding Np of a switch transformer T, one end of a resistor R is connected with one ends of the capacitors C, the resistors R and a pin 2 of the switch transformer T, the other end of the capacitor C is grounded, the other end of the resistor R is sequentially connected with the resistors R, R and the capacitor C in series and then is connected with one end of the capacitor C, a cathode of a voltage regulator tube D and a pin 6 of a controller U, the other end of the capacitor C is connected with the other ends of the resistors R and a cathode of the voltage regulator tube D, an anode of the voltage regulator tube D is connected with a pin 1 of the switch tube Q and a pin 1 of the switch transformer T, a pin 3 of the switch tube Q is connected with one end of the resistor R, a pin B, a pin C and a pin 3, The anode of a voltage regulator tube D6 is connected, the other end of the resistor R7 and the cathode of a voltage regulator tube D6 are connected and then connected with the 5 pin of the controller U1, the 2 pin of the switch tube Q1 is connected with one end of the resistors R8 and R9, the other end of the resistor R8 is connected with one end of the capacitor C4 and then grounded, the other end of the capacitor C4 is grounded, the other end of the resistor R9 is connected with the 3 pin of the controller U1, one end of the capacitor C11 and the cathode of the voltage regulator tube D9, the other end of the capacitor C11 is connected with the 4 pin of the controller U1 and then grounded, the 1 pin of the controller U1 is connected with the capacitor C9 and then grounded, the 2 pin of the controller U1 is connected with the 3 pin of the photocoupler U3, the 4 pin of the switch transformer T1 is grounded, the 3 pin of the switch transformer T1 is connected with the anode of the voltage regulator tube D7 and the one end of the resistor R10, the other end of the resistor R10 is connected with one end of the resistor R11 and the pin 7 of the controller U1, the other end of the resistor R11 is grounded, the negative electrode of the voltage regulator tube D7 is connected with one ends of the resistors R13, R12 and the capacitor C5, the other end of the resistor R13 is connected with the positive electrode of the voltage regulator tube D8, the other ends of the capacitors C5 and C6 are grounded, the other end of the resistor R12 is connected with the pin 8 of the switch transformer T1 and the positive electrode of the voltage regulator tube D9, the pin 5 of the switch transformer T1 is connected with one ends of the capacitors C1, R1 and R1 after passing through the inductor L1, the pin 6 of the switch transformer T1 is connected with the pin 1 of the switch tube Q1, the pin 2 of the switch tube Q1 is connected with the other end of the capacitor C1 and the negative electrode of the resistor R1, the pin C1 and the capacitor C1, the other end of the capacitor C8 and the anode of the voltage regulator tube D10 are connected and then grounded, the other end of the resistor R15 is connected with one end of the resistor R16 and the pin 1 of the photoelectric coupler U3, the other end of the resistor R16 is connected with the pin 2 of the photoelectric coupler U3, one end of the capacitor C10 and the pin 1 of the shunt U2, the other ends of the resistor R17 and the capacitor C10 are connected with the pin 3 of the photoelectric coupler U3 and one end of the resistor R18, and the other end of the resistor R18 is connected with the pin 4 of the photoelectric coupler U3 and the pin 2 of the shunt U2 and then grounded;

the DC/DC step-down switching power supply circuit comprises a voltage stabilizer U4, capacitors C4-C4, resistors R4-R4, a voltage stabilizing tube D4, switching tubes Q4, Q4 and an inductor L4, wherein the voltage stabilizer U4 adopts a LTC7800 voltage stabilizing chip, one end of the capacitor C4 is connected with one ends of the capacitors C4 and C4, a pin 1 of the switching tube Q4 and a pin 17 of the voltage stabilizer U4 through the resistor R4, the other ends of the capacitors C4 and C4 are connected with the ground, the resistor R4 is connected with a pin 9 of the voltage stabilizer U4, one end of the capacitor C4 is connected with one end of the capacitor C4 through the resistor R4 and then connected with a pin 8 of the voltage stabilizer U4, one end of the resistor R4 is connected with a pin 20 of the voltage stabilizer U4, one end of the capacitor C4 is connected with a pin 19 of the voltage stabilizer U4, and the other ends of the capacitors C4 and C4 are connected with the pin 3621 of the voltage stabilizer U4 and the resistor R4, a pin 14 of the voltage stabilizer U4 is connected with one end of the capacitor C17 and the anode of the voltage stabilizer D11, the other end of the capacitor C17 is connected with a pin 16 of the voltage stabilizer U4 and then grounded, the cathode of the voltage stabilizer D11 is connected with one end of the capacitor C18 and the pin 12 of the voltage stabilizer U4, a pin 10 of the voltage stabilizer U4 is connected with a pin 3 of the switching tube Q3, a pin 2 of the switching tube Q3 is connected with the other end of the capacitor C18, a pin 1 of the switching tube Q4, a pin 11 of the voltage stabilizer U4 and one end of the inductor L3, a pin 2 of the switching tube Q4 is grounded, a pin 3 of the switching tube Q4 is connected with a pin 13 of the voltage stabilizer U4, a pin 6 of the voltage stabilizer U4 is connected with one end of the resistor R23 and one end of the capacitor C19, the other end of the resistor R23 is connected with the other end of the inductor L23 and one end of the resistor R23, and the pin 72 of the voltage stabilizer U23 are connected with the pin 5, The other end of the capacitor C19, one end of the resistor R25, one end of the capacitors C20 and C21 are connected, a pin 7 of the voltage stabilizer U4 is connected with one end of the resistor R26, the other end of the resistor R25 and the other end of the capacitor C20, and the other ends of the resistor R26 and the capacitor C21 are connected and then grounded;

the charging management system circuit comprises a charging manager U5, capacitors C22-C29, resistors R27-R38, a switching tube Q5 and a switching tube Q6, wherein the charging manager U5 adopts a management chip with the model of LTC 4000; the 5 pin of the regulator U4 is connected to one end of the capacitor C23, the 19 pin of the charge manager U5, and the 1 pin of the switch Q5, the other end of the capacitor C23 is grounded, the 15 pin of the regulator U4 is connected to one end of the 20 pin of the charge manager U5 and one end of the resistor R27, the other end of the resistor R27 is connected to the 21 pin of the charge manager U5 through the capacitor C22, the 3 pin of the switch Q5 is connected to the 18 pin of the charge manager U5, one end of the capacitor C7 is connected to one end of the capacitor C24, one end of the resistor R28, and the 23 pin of the charge manager U5, the other end of the resistor R28 is grounded through the resistor R29, the other end of the capacitor C29 is grounded, the 25 pin of the charge manager U29 is connected between the serial connection ends of the resistors R29 and R29, the charge manager U29 is grounded through the capacitor C29 and the capacitor C29, one end of the capacitor C27 is connected to the pin 5 of the charge manager U5, one end of the resistor R35 is connected to the pin 4 of the charge manager U5, one end of the resistor R36 is connected to the pin 3 of the charge manager U5, the pin 9 of the charge manager U5 is connected to one ends of the capacitor C28 and the resistor R33, the other ends of the capacitors C27, C28 and the resistors R35 and R36 are connected to the pin 24 of the charge manager U5 and then grounded, the pin 2 of the switch tube Q5 is connected to one ends of the pin 16 of the charge manager U5 and the resistors R30 and R31, the other end of the resistor R30 is connected to the pin 17 of the charge manager U5 and one end of the resistor R38, the other end of the resistor R31 is connected to the pin 15 of the charge manager U5 and the pin 1 of the switch tube Q6, and the other end of the pin 3514 of the charge manager U5 is connected to the switch tube Q6, the pin 13 of the charging manager U5 is connected with the pin 2 of the switch tube Q6, one end of a resistor R37 and one end of a capacitor C29 are connected, the other end of the capacitor C29 is connected with one end of a resistor R34 and then is grounded, the pin 10 of the charging manager U5 is connected with the other ends of the resistors R34 and R33, the other end of the resistor R38 is connected with one end of the resistor R32 and the pin 11 of the charging manager U5, and the pin 12 of the charging manager U5 is connected with the other ends of the resistors R32 and R37.

The beneficial effects of the utility model are that, it converts the commercial power to the direct current through AC/DC switching power supply circuit, then provide the direct current that electric current/voltage can adjust as required to the super capacitor module through DC/DC step-down switching power supply circuit, provide the charging process management by the charge management system circuit at last, the safety protection function to satisfy super capacitor safety, high efficiency, quick charge's demand, thereby help promoting the application and the technological development of super capacitor product, better practicality and spreading value have.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

FIG. 2 is a schematic circuit diagram of an AC/DC switching power supply circuit according to the present invention;

FIG. 3 is a schematic circuit diagram of the DC/DC buck switching power supply circuit of the present invention;

fig. 4 is a schematic circuit diagram of the charging management system circuit of the present invention.

Detailed Description

As shown in fig. 1-4, the utility model relates to a charge control system for super capacitor module, which comprises an AC/DC switching power supply circuit, a DC/DC step-down switching power supply circuit, and a charge management system circuit, which are electrically connected in sequence, wherein the AC/DC switching power supply circuit is powered by alternating current commercial power; the AC/DC switching power supply circuit is used for realizing the soft start of the switching power supply; a DC/DC step-down switching power supply circuit for adjusting the output current voltage; the charging management system circuit is used for preventing the electric energy from flowing backwards to damage the DC/DC power supply.

The AC/DC switching power supply circuit comprises a fuse F1, a filter inductor L1, capacitors Cx1, Cx2, Cy1, Cy2, capacitors C1-C11, resistors R1-R18, voltage-stabilizing tubes D5-D10, diodes D1-D4, a switching transformer T1, switching tubes Q1 and Q2, a controller U1, a shunt U2, a photoelectric coupler U3 and an inductor L2, wherein the controller U1 adopts a UCC28600DR control chip, the shunt U2 adopts a TL431CDBZR chip, and the photoelectric coupler U3 adopts a PC817 coupling chip; alternating current mains supply sequentially passes through a fuse F, an EMI filter consisting of a filter inductor L, capacitors Cx, Cy and Cy, a rectifier bridge consisting of D-D and a capacitor C and then enters a primary winding Np of a switch transformer T, one end of a resistor R is connected with one ends of the capacitors C, R and a pin 2 of the switch transformer T, the other end of the capacitor C is grounded, the other end of the resistor R is sequentially connected with the resistors R, R and the capacitor C in series and then is connected with one end of the capacitor C, the cathode of a voltage regulator tube D and a pin 6 of a controller U, the other end of the capacitor C is connected with the other ends of the resistors R and the cathode of the voltage regulator tube D after passing through the resistor R, the anode of the voltage regulator tube D is connected with a pin 1 of a switch tube Q and a pin 1 of the switch transformer T, a pin 3 of the switch tube Q is connected with one end of the resistor R and the anode, the other end of the resistor R7 and the negative electrode of the voltage regulator tube D6 are connected and then connected with a pin 5 of the controller U1, a pin 2 of the switch tube Q1 is connected with one ends of the resistors R8 and R9, the other end of the resistor R8 is connected with one end of the capacitor C4 and then grounded, the other end of the capacitor C4 is grounded, the other end of the resistor R9 is connected with a pin 3 of the controller U1, one end of the capacitor C11 and the negative electrode of the voltage regulator tube D9 and then connected with the ground, the other end of the capacitor C9 is connected with a pin 4 of the controller U9 and then connected with the ground, a pin 1 of the controller U9 is connected with a pin C9 and then grounded, a pin 2 of the controller U9 is connected with a pin 3 of the photocoupler U9, a pin 4 of the switch transformer T9 is connected with the ground, a pin 3 of the switch transformer T9 is connected with the positive electrode of the voltage regulator tube D9 and the resistor R9, one end of the other end of the resistor R9 is connected with the other end of the resistor R9 and then connected with the voltage regulator tube R9 and the negative electrode of the voltage regulator tube R9 and then connected with the voltage regulator tube D9, One end of an R12 and one end of a capacitor C5 are connected, the other end of a resistor R13 is connected with the anode of a voltage-stabilizing tube D8, the other ends of capacitors C5 and C6 are both grounded, the other end of a resistor R12 is connected with the pin 8 of a switch transformer T12 and the anode of the voltage-stabilizing tube D12, the pin 5 of the switch transformer T12 is connected with one end of the capacitors C12, R12 and R12 through an inductor L12 and then grounded, the pin 6 of the switch transformer T12 is connected with the pin 1 of the switch tube Q12, the pin 2 of the switch tube Q12 is connected with the other end of the capacitor C12 and then grounded, the other end of the resistor R12 is connected with one end of the resistor R12, one end of the capacitor C12 and the cathode of the voltage-stabilizing tube D12, the other end of the capacitor C12 and the anode of the diode D12 are connected and then grounded, the other end of the pin 12 of the resistor R12 and the voltage-stabilizing tube U12 are connected with one end of the shunt 12 and the pin 12 of the capacitor U12, the other ends of the resistor R17 and the capacitor C10 are connected with a pin 3 of the photoelectric coupler U3 and one end of the resistor R18, and the other end of the resistor R18 is connected with a pin 4 of the photoelectric coupler U3 and a pin 2 of the shunt U2 and then grounded;

specifically, alternating current mains supply enters a primary winding Np of a switch transformer T1 after sequentially passing through a fuse F1, an EMI filter consisting of a filter inductor L1 and capacitors Cx1, Cx2, Cy1 and Cy2, a rectifier bridge consisting of D1-D4 and a filter capacitor C1, switching tubes Q1 and Q2 are switched on and off at high speed under the control of a pin 5 of a U1 of a controller, so that the winding Np is charged and discharged continuously to convert the electric energy into magnetic field energy and transmit the magnetic field energy to the secondary winding Ns and the auxiliary winding Na of the switching transformer T1, a voltage signal induced by the secondary winding Ns is rectified by the switching tube Q2 to output a pulsating dc voltage, the pulsating dc voltage forms an LC filter circuit by the capacitor C7, and outputting the smooth and stable DC24V direct-current voltage to a rear-stage DC/DC conversion power supply, wherein pin 1 of the U1 is a slow start interface, and pin 1 of the U1 is connected with a capacitor C9 to realize the soft start of the switching power supply.

The DC/DC step-down switching power supply circuit comprises a voltage stabilizer U4, capacitors C12-C21, resistors R19-R26, a voltage stabilizer D11, switching tubes Q3, Q4 and an inductor L3, wherein a voltage stabilizer U4 adopts an LTC7800 voltage-stabilizing chip, one end of a capacitor C7 is connected with one end of the capacitors C12 and C13 through a resistor R19 and then with a pin 1 of the switching tube Q3 and a pin 17 of a voltage stabilizer U4, the other ends of the capacitors C12 and C13 are connected and then grounded, a resistor R20 is connected with a pin 8 of the voltage stabilizer U4, one end of the capacitor C14 is connected with one end of a capacitor C15 through a resistor R22 and then with a pin 8 of the voltage stabilizer U4, one end of the resistor R4 is connected with a pin 20 of the voltage stabilizer U4, one end of the capacitor C4 is connected with a pin 19 of the voltage stabilizer U4, the other ends of the capacitors C4 and the other ends of the capacitors C4 are connected with a pin 4 and the rear pin 4 of the voltage stabilizer U4, and the rear pin 4 of the capacitor U4, the capacitor U4 are connected with the rear pin 4, the rear end of the voltage stabilizer U4 and the capacitor D4, the cathode of a voltage stabilizing tube D11 is connected with one end of a capacitor C18 and the 12 pin of a voltage stabilizer U4, the 10 pin of the voltage stabilizer U4 is connected with the 3 pin of a switch tube Q3, the 2 pin of a switch tube Q3 is connected with the other end of a capacitor C18, the 1 pin of the switch tube Q18, the 11 pin of the voltage stabilizer U18 and one end of an inductor L18 are connected, the 2 pin of the switch tube Q18 is grounded, the 3 pin of the switch tube Q18 is connected with the 13 pin of the voltage stabilizer U18, the 6 pin of the voltage stabilizer U18 is connected with one ends of the resistor R18 and the capacitor C18, the other end of the resistor R18 is connected with the other end of the inductor L18 and one end of the resistor R18, the 5 pin of the voltage stabilizer U18 is connected with the other end of the resistor R18, the other end of the capacitor C18, the resistor R18, the capacitor C18 and the other end of the resistor R18 are connected with the ground;

specifically, switching tubes Q3 and Q4, inductor L3, capacitors C20 and C21 form a Buck topology, where switching tube Q3 is turned on and off at a high speed under the control of pin 10 of regulator U4, in a switching cycle, inductor L3 charges and stores energy when switching tube Q3 is turned on (at this time, switching tube Q4 is turned off), inductor L3 discharges and releases energy when switching tube Q3 is turned off, switching tube Q4 is turned on under the control of pin 13 of regulator U4 at this time, so as to realize a freewheeling function during the discharge of inductor L3, pins 5 and 6 of regulator U4 detect the magnitude of the output current of the DC/DC conversion power supply by the voltage division of sampling resistor R24, the voltage division value is sent to pin 7 of regulator U4 by a voltage division circuit formed by resistors R25, R26 and capacitor C20, so as to detect the magnitude of the output voltage of the DC/DC conversion power supply, and soft start of the power supply can be realized by configuring a capacitor C16 connected to pin 19 of regulator U4, the pin 20 of the regulator U4 is connected to a resistor R21, which can change the switching frequency of the switching power supply by changing the resistance of the resistor R21, so as to adjust the output current and voltage.

The charging management system circuit comprises a charging manager U5, capacitors C22-C29, resistors R27-R38, a switching tube Q5 and a switching tube Q6, wherein the charging manager U5 adopts a management chip with the model of LTC 4000; pin 5 of regulator U4 is connected to one end of capacitor C23, pin 19 of charge manager U5, and pin 1 of switching tube Q5, the other end of capacitor C23 is grounded, pin 15 of regulator U4 is connected to pin 20 of charge manager U5 and one end of resistor R5, the other end of resistor R5 is connected to pin 21 of charge manager U5 through capacitor C5, pin 3 of switching tube Q5 is connected to pin 18 of charge manager U5, one end of capacitor C5 is connected to one end of capacitor C5, one end of resistor R5 and pin 23 of charge manager U5, the other end of resistor R5 is grounded through resistor R5, the other end of capacitor C5 is grounded, the pin 25 of charge manager U5 is connected between the serial connection ends of resistors R5 and R5, pin 27 of charge manager U5 is grounded through capacitor C5, the pin 2 of charge manager U5 is connected to one end of capacitor C5 and the ground of capacitor R5, and the pin 5 is connected to one end of charge manager U5 through capacitor C5 and the ground, one end of a resistor R36 is connected with a pin 3 of a charging manager U5, a pin 9 of the charging manager U5 is connected with one ends of a capacitor C28 and a resistor R33, the other ends of the capacitors C27, C28, R28 and R28 are connected with a pin 24 of the charging manager U28 and then grounded, a pin 2 of a switch tube Q28 is connected with a pin 16 of the charging manager U28 and one ends of the resistors R28 and R28 are connected, the other end of the resistor R28 is connected with a pin 17 of the charging manager U28 and one end of the resistor R28, the other end of the resistor R28 is connected with a pin 15 of the charging manager U28 and a pin 1 of the switch tube Q28, a pin 14 of the charging manager U28 is connected with a pin 3 of the switch tube Q28, a pin 13 of the charging manager U28 is connected with a pin 2 of the switch tube Q28, one end of the resistor R28 and one end of the capacitor C28 are connected with a pin R28 and the other end of the resistor R28 and the resistor R28 are connected with the other end of the charging manager R28 and then grounded, the other end of the resistor R38 is connected with one end of a resistor R32 and the pin 11 of the charge manager U5, the pin 12 of the charge manager U5 is connected with the other ends of the resistors R32 and R37, and the capacitor C29 serves as a super capacitor.

Specifically, a feedback network composed of resistors R28, R29 and a capacitor C24 sends the output voltage of the DC/DC power supply to

pins

23 and 25 of a charge manager U5, a feedback network composed of resistors R30 and R38 converts the charging current into a voltage signal on a resistor R38 and then sends the voltage signal to

pins

17 and 11 of the charge manager U5, a feedback network composed of resistors R30 and R38 samples the charging voltage on a resistor R32 and sends the sampled charging voltage to

pins

12 and 11 of the charge manager U5, a pin 9 of the charge manager U5 outputs a path of 2.9V constant bias voltage, the voltage is divided and sampled by resistors R33 and R34 and then reflects the internal temperature of the super capacitor module monitored by an NTC resistor R34 in the form of voltage, so that the super charge manager U5 performs over-temperature protection on the super capacitor, and the switch Q5 switches on the super capacitor module and the previous stage when the super capacitor module is charged under the control of a pin 18 of the charge manager U5, the conducting state of a switch tube Q6 is controlled through a pin 14 of a charging manager U5 to adjust charging current and voltage, the switch tube Q5 is arranged as a safety redundancy device and is responsible for reliably isolating a super capacitor from a power supply system when the system fails, and electric energy is prevented from flowing back to the DC/DC power supply system from the super capacitor to the maximum extent to damage a DC/DC power supply;

in the charging management system circuit, the charging current limit value is set by configuring the resistance values of the resistors R35 and R31; setting a charging termination current by configuring the resistance values of the resistors R36, R31; setting the charging output voltage by configuring the resistance values of the resistors R30, R38; the float voltage is set by configuring the resistance values of the resistors R32, R37.

The utility model discloses for linear DC power supply, switching power supply is efficient, volume weight is little, convert the commercial power into the direct current through selecting switching power supply, then through the DC/DC switching power supply who comprises Buck (step-down) topology, provide the direct current that electric current/voltage can be adjusted as required to the super capacitor module, provide charging process management, safety protection function by configurable super capacitor charging management system circuit at last to satisfy super capacitor safety, high efficiency, quick charge's demand.

To sum up, the utility model discloses in, 1, the preferred normal shock mode of switch transformer T1, in order to adapt to the demand of high-power, heavy current output, and switch transformer T1 output side replaces traditional rectifier diode or rectifier bridge with switch tube Q2, this switch tube Q2 and switch tube Q1 synchronous drive of switch transformer T1 primary side, when realizing the rectification function, can effectively reduce switching power supply's output internal resistance, thereby reduce the power loss in the switching power supply, and switch transformer T1 output side is preferred inductance L2 and electric capacity C7 component LC filter circuit, in order to strengthen the external characteristic of external output, in order to adapt to the demand of high-power, heavy current output;

2. in the DC/DC step-down switching power supply circuit, a traditional freewheeling diode is replaced by the switching tube Q4, the output internal resistance of the DC/DC conversion power supply is reduced while the rectification function is realized, and therefore the power loss in the DC/DC conversion power supply is effectively reduced;

3. the AC/DC switching power supply circuit, the DC/DC voltage reduction switching power supply circuit and the charging management system circuit can realize soft start so as to prevent the charging control system or the super capacitor from being damaged by overcurrent and overvoltage during the electrifying and charging starting stages of the charging control system;

4. the utility model discloses a charging control system, more than 90% of the time of charging cycle charges with invariable heavy current, compares other charging methods, and constant current charging is not only fast, and the efficiency of charging is high moreover, can avoid the constant voltage charging initial stage charging current too big and make super capacitor scrap, and the realization of constant current system hardware is also relatively simple; the floating charging mode is adopted in the final charging stage (namely, the voltage of the super capacitor module is ensured not to exceed the rated value of the super capacitor module, and meanwhile, the low-current charging is carried out, when the charging current is reduced to the set value in the stage, the charging period is finished), the floating charging can reduce the voltage drop in the final constant-current charging stage, the utilization rate of super capacitance is improved, and the service life of a super-capacitance product is effectively prolonged;

5. the utility model can realize the automatic conversion and fault protection of the charging state by reasonably configuring the resistance-capacitance elements at the periphery of the appointed pin on the charging manager U5 without programming;

6. the AC/DC switching power supply circuit, the DC/DC step-down switching power supply circuit and the charging management system circuit can be matched and combined to form the charger meeting the requirements of different voltages and currents by reasonably configuring peripheral devices of respective core IC chips (U1, U4 and U5), and the system has certain universality.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The utility model provides a charge control system for super capacitor module which characterized in that: the charging management system comprises an AC/DC switching power supply circuit, a DC/DC voltage reduction switching power supply circuit and a charging management system circuit which are sequentially and electrically connected, wherein the AC/DC switching power supply circuit supplies power through alternating current commercial power, and is used for realizing the soft start of a switching power supply; the DC/DC voltage reduction switch power supply circuit is used for adjusting the output current voltage; the charging management system circuit is used for preventing electric energy from flowing backwards to damage the DC/DC power supply.

2. The charging control system for the super capacitor module as claimed in claim 1, wherein: the AC/DC switching power supply circuit comprises a fuse F1, a filter inductor L1, capacitors Cx1, Cx2, Cy1, Cy2, capacitors C1-C11, resistors R1-R18, voltage-stabilizing tubes D5-D10, diodes D1-D4, a switching transformer T1, switching tubes Q1, Q2, a controller U1, a shunt U2, a photoelectric coupler U3 and an inductor L2, wherein the controller U1 adopts a UCC28600DR control chip, the shunt U2 adopts a TL431CDBZR chip, and the photoelectric coupler U3 adopts a PC817 coupling chip; the alternating current mains supply sequentially passes through the fuse F, an EMI filter consisting of a filter inductor L, capacitors Cx, Cy and Cy, a rectifier bridge consisting of D-D and a capacitor C and then enters a primary winding Np of a switch transformer T, one end of a resistor R is connected with one ends of the capacitors C, the resistors R and a pin 2 of the switch transformer T, the other end of the capacitor C is grounded, the other end of the resistor R is sequentially connected with the resistors R, R and the capacitor C in series and then is connected with one end of the capacitor C, a cathode of a voltage regulator tube D and a pin 6 of a controller U, the other end of the capacitor C is connected with the other ends of the resistors R and a cathode of the voltage regulator tube D, an anode of the voltage regulator tube D is connected with a pin 1 of the switch tube Q and a pin 1 of the switch transformer T, a pin 3 of the switch tube Q is connected with one end of the resistor R, a pin B, a pin C and a pin 3 of the switch tube D are connected with a pin 2 of the switch transformer T, The anode of a voltage regulator tube D6 is connected, the other end of the resistor R7 and the cathode of a voltage regulator tube D6 are connected and then connected with the 5 pin of the controller U1, the 2 pin of the switch tube Q1 is connected with one end of the resistors R8 and R9, the other end of the resistor R8 is connected with one end of the capacitor C4 and then grounded, the other end of the capacitor C4 is grounded, the other end of the resistor R9 is connected with the 3 pin of the controller U1, one end of the capacitor C11 and the cathode of the voltage regulator tube D9, the other end of the capacitor C11 is connected with the 4 pin of the controller U1 and then grounded, the 1 pin of the controller U1 is connected with the capacitor C9 and then grounded, the 2 pin of the controller U1 is connected with the 3 pin of the photocoupler U3, the 4 pin of the switch transformer T1 is grounded, the 3 pin of the switch transformer T1 is connected with the anode of the voltage regulator tube D7 and the one end of the resistor R10, the other end of the resistor R10 is connected with one end of the resistor R11 and the pin 7 of the controller U1, the other end of the resistor R11 is grounded, the negative electrode of the voltage regulator tube D7 is connected with one ends of the resistors R13, R12 and the capacitor C5, the other end of the resistor R13 is connected with the positive electrode of the voltage regulator tube D8, the other ends of the capacitors C5 and C6 are grounded, the other end of the resistor R12 is connected with the pin 8 of the switch transformer T1 and the positive electrode of the voltage regulator tube D9, the pin 5 of the switch transformer T1 is connected with one ends of the capacitors C1, R1 and R1 after passing through the inductor L1, the pin 6 of the switch transformer T1 is connected with the pin 1 of the switch tube Q1, the pin 2 of the switch tube Q1 is connected with the other end of the capacitor C1 and the negative electrode of the resistor R1, the pin C1 and the capacitor C1, the other end of the capacitor C8 and the anode of the voltage regulator tube D10 are connected and then grounded, the other end of the resistor R15 is connected with one end of the resistor R16 and the pin 1 of the photoelectric coupler U3, the other end of the resistor R16 is connected with the pin 2 of the photoelectric coupler U3, one end of the capacitor C10 and the pin 1 of the shunt U2, the other ends of the resistor R17 and the capacitor C10 are connected with the pin 3 of the photoelectric coupler U3 and one end of the resistor R18, and the other end of the resistor R18 is connected with the pin 4 of the photoelectric coupler U3 and the pin 2 of the shunt U2 and then grounded.

3. The charging control system for the super capacitor module as claimed in claim 2, wherein: the DC/DC step-down switching power supply circuit comprises a voltage stabilizer U4, capacitors C4-C4, resistors R4-R4, a voltage stabilizing tube D4, switching tubes Q4, Q4 and an inductor L4, wherein the voltage stabilizer U4 adopts a LTC7800 voltage stabilizing chip, one end of the capacitor C4 is connected with one ends of the capacitors C4 and C4, a pin 1 of the switching tube Q4 and a pin 17 of the voltage stabilizer U4 through the resistor R4, the other ends of the capacitors C4 and C4 are connected with the ground, the resistor R4 is connected with a pin 9 of the voltage stabilizer U4, one end of the capacitor C4 is connected with one end of the capacitor C4 through the resistor R4 and then connected with a pin 8 of the voltage stabilizer U4, one end of the resistor R4 is connected with a pin 20 of the voltage stabilizer U4, one end of the capacitor C4 is connected with a pin 19 of the voltage stabilizer U4, and the other ends of the capacitors C4 and C4 are connected with the pin 3621 of the voltage stabilizer U4 and the resistor R4, a pin 14 of the voltage stabilizer U4 is connected with one end of the capacitor C17 and the anode of the voltage stabilizer D11, the other end of the capacitor C17 is connected with a pin 16 of the voltage stabilizer U4 and then grounded, the cathode of the voltage stabilizer D11 is connected with one end of the capacitor C18 and the pin 12 of the voltage stabilizer U4, a pin 10 of the voltage stabilizer U4 is connected with a pin 3 of the switching tube Q3, a pin 2 of the switching tube Q3 is connected with the other end of the capacitor C18, a pin 1 of the switching tube Q4, a pin 11 of the voltage stabilizer U4 and one end of the inductor L3, a pin 2 of the switching tube Q4 is grounded, a pin 3 of the switching tube Q4 is connected with a pin 13 of the voltage stabilizer U4, a pin 6 of the voltage stabilizer U4 is connected with one end of the resistor R23 and one end of the capacitor C19, the other end of the resistor R23 is connected with the other end of the inductor L23 and one end of the resistor R23, and one end of the resistor U23 are connected with the pin 5 of the voltage stabilizer U23, The other end of the capacitor C19, one end of the resistor R25, one end of the capacitors C20 and one end of the capacitor C21 are connected, a pin 7 of the voltage stabilizer U4 is connected with one end of the resistor R26, the other end of the resistor R25 and the other end of the capacitor C20, and the other ends of the resistor R26 and the capacitor C21 are connected and then grounded.

4. The charging control system for the super capacitor module as set forth in claim 3, wherein: the charging management system circuit comprises a charging manager U5, capacitors C22-C29, resistors R27-R38, a switching tube Q5 and a switching tube Q6, wherein the charging manager U5 adopts a management chip with the model of LTC 4000; the 5 pin of the regulator U4 is connected to one end of the capacitor C23, the 19 pin of the charge manager U5, and the 1 pin of the switch Q5, the other end of the capacitor C23 is grounded, the 15 pin of the regulator U4 is connected to one end of the 20 pin of the charge manager U5 and one end of the resistor R27, the other end of the resistor R27 is connected to the 21 pin of the charge manager U5 through the capacitor C22, the 3 pin of the switch Q5 is connected to the 18 pin of the charge manager U5, one end of the capacitor C7 is connected to one end of the capacitor C24, one end of the resistor R28, and the 23 pin of the charge manager U5, the other end of the resistor R28 is grounded through the resistor R29, the other end of the capacitor C29 is grounded, the 25 pin of the charge manager U29 is connected between the serial connection ends of the resistors R29 and R29, the charge manager U29 is grounded through the capacitor C29 and the capacitor C29, one end of the capacitor C27 is connected to the pin 5 of the charge manager U5, one end of the resistor R35 is connected to the pin 4 of the charge manager U5, one end of the resistor R36 is connected to the pin 3 of the charge manager U5, the pin 9 of the charge manager U5 is connected to one ends of the capacitor C28 and the resistor R33, the other ends of the capacitors C27, C28 and the resistors R35 and R36 are connected to the pin 24 of the charge manager U5 and then grounded, the pin 2 of the switch tube Q5 is connected to one ends of the pin 16 of the charge manager U5 and the resistors R30 and R31, the other end of the resistor R30 is connected to the pin 17 of the charge manager U5 and one end of the resistor R38, the other end of the resistor R31 is connected to the pin 15 of the charge manager U5 and the pin 1 of the switch tube Q6, and the other end of the pin 3514 of the charge manager U5 is connected to the switch tube Q6, the pin 13 of the charging manager U5 is connected with the pin 2 of the switch tube Q6, one end of a resistor R37 and one end of a capacitor C29 are connected, the other end of the capacitor C29 is connected with one end of a resistor R34 and then is grounded, the pin 10 of the charging manager U5 is connected with the other ends of the resistors R34 and R33, the other end of the resistor R38 is connected with one end of the resistor R32 and the pin 11 of the charging manager U5, and the pin 12 of the charging manager U5 is connected with the other ends of the resistors R32 and R37.