CN219420353U - Control main board and energy storage power supply - Google Patents
Control main board and energy storage power supply Download PDFInfo
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- CN219420353U CN219420353U CN202223039216.8U CN202223039216U CN219420353U CN 219420353 U CN219420353 U CN 219420353U CN 202223039216 U CN202223039216 U CN 202223039216U CN 219420353 U CN219420353 U CN 219420353U
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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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/10—Technologies improving the efficiency by using switched-mode power supplies [SMPS], i.e. efficient power electronics conversion e.g. power factor correction or reduction of losses in power supplies or efficient standby modes
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Abstract
The utility model provides a control main board and an energy storage power supply, which comprises a PFC module and an LLC module, wherein the PFC module is used for rectifying an external power supply; the LLC module is used for stably outputting direct current; the input end of the PFC module is connected with an external power supply; the output end of the PFC module is connected with the input end of the LLC module; the output end of the LLC module is connected with a load; because PFC module carries out rectification output to external power supply, external power supply is alternating current, LLC module is used for controlling output stable direct current to realize the effect of high-efficient charging, reduced the loss of switching on and switching in the circuit, solved in the current bi-directional inverter and charged and be the standard defect that electromagnetic compatibility EMC can not pass through CLASS B grade.
Description
Technical Field
The utility model belongs to the technical field of control mainboards, and particularly relates to a control mainboard and an energy storage power supply.
Background
At present, a charging circuit is integrated on a control main board of many electric equipment, in a common charging circuit, most of the charging circuits have the problem of excessive loss, and the problem of too fast heating or too high heating temperature also exists, so that the working efficiency of a main circuit is reduced, and especially in an energy storage power supply, a bidirectional inverter is often arranged, and through the existing charging circuit, electromagnetic compatibility EMC is often caused to be difficult to pass through standards of CLASS B.
Disclosure of Invention
In order to overcome the defects in the prior art, the utility model provides a control main board and an energy storage power supply so as to solve the problems in the prior art.
One embodiment of the present utility model provides a control motherboard, including:
the PFC module is used for rectifying an external power supply; and
the LLC module is used for stably outputting direct current;
the input end of the PFC module is connected with an external power supply;
the output end of the PFC module is connected with the input end of the LLC module;
and the output end of the LLC module is connected with a load.
In one embodiment, the PFC module includes:
the input end of the protection circuit is connected with the external power supply;
the input end of the filter circuit is connected with the output end of the protection circuit and is used for eliminating interference signals and reducing radiation;
the input end of the rectifying circuit is connected with the output end of the filter circuit,
and the input end of the boost circuit is connected with the output end of the rectifying circuit, and the output end of the boost circuit is connected with the input end of the LLC module.
In one embodiment, the protection circuit includes:
the filter circuit comprises an F1 protection element, wherein one end of the F1 protection element is connected with the external power supply, and the other end of the F1 protection element is connected with the filter circuit;
an NTC resistive element, one end of which is connected to the external power source, and the other end of which is connected to the filter circuit; and
and one end of the MOV resistor element is connected with the output end of the F1 protection element, and the other end of the MOV resistor element is connected with the output end of the NTC resistor element.
In one embodiment, the filter circuit includes:
a CX1 element, said CX1 element being in parallel with said MOV resistive element;
the LF1 element is connected with the protection circuit;
a CX2 element, the CX2 element being arranged in parallel; and
an LF2 element, the LF2 element being connected to the LF1 element;
wherein the CX2 element is in parallel with the LF1 element or the LF2 element.
In one embodiment, the rectifying circuit includes:
the rectifying circuit is a BD1 rectifying bridge;
the input end of the BD1 rectifier bridge is connected with the output end of the filter circuit;
and the output end of the BD1 rectifier bridge is connected with the input end of the boost circuit.
In one embodiment, the boost circuit includes:
the input end of the D201 diode is connected with the output end of the BD1 rectifier bridge;
the input end of the L1 inductor is connected with the output end of the BD1 rectifier bridge;
d202 diode, the said D202 diode is connected in series with said L1 inductance;
the input end of the C215 capacitor is connected with the output end of the D202 diode; and
the drain electrode of the Q201MOS tube is connected with the output end of the L1 inductor, and the source electrode of the Q201MOS tube is grounded; and
the PFC control IC is connected with the grid electrode of the Q201MOS tube;
wherein the output end of the C215 capacitor is grounded;
the output end of the D201 diode or the D202 diode is connected with the LLC module.
In one embodiment, the LLC module includes:
a switching circuit; the input end of the switching circuit is linked with the output end of the PFC module; and
and the input end of the half-bridge filter circuit is connected with the output end of the switch circuit.
In one embodiment, the switching circuit includes:
an LLC control IC for controlling the output of the current or voltage;
the input end of the first protection unit is connected with the output end of the LLC control IC;
the grid electrode of the Q601MOS tube is connected with the output end of the first protection unit, the drain electrode of the Q601MOS tube is connected with the output end of the PFC module, and the source electrode of the Q601MOS tube is connected with the half-bridge filter circuit;
the output end of the second protection unit is connected with the output end of the LLC control IC;
the grid electrode of the Q601MOS tube is connected with the output end of the second protection unit, the drain electrode of the Q601MOS tube is connected with the source electrode of the Q601MOS tube, and the source electrode of the Q601MOS tube is connected with the half-bridge filter circuit.
In one embodiment, the half-bridge filter circuit includes:
the input end of the filtering unit is connected with the output end of the switching circuit; and
and the input end of the voltage regulating unit is connected with the output end of the filtering unit, and the output end of the voltage regulating unit is connected with the load.
An embodiment of the present utility model further provides an energy storage power supply, including a control motherboard as described in any one of the above.
The control main board and the energy storage power supply provided by the embodiment have the following beneficial effects:
1. through adopting PFC module and LLC module to combine together and using, because PFC module carries out the rectification output to external power supply, external power supply is the alternating current, LLC module is used for controlling output stable direct current to realize the effect of high-efficient charging, reduced the loss of switching on and switch in the circuit, solved charging in the current bi-directional inverter and be the standard defect that electromagnetic compatibility EMC can not pass through the CLASS of CLASS B.
2. In one embodiment, the CCM PFC circuit adopts a current continuous working mode, and the Q201MOS tube and the D202 diode of the SIC of the superjunction technology used in the boost circuit effectively reduce conduction and switching loss in the PFC circuit, reduce the volume of inductance in the PFC circuit and increase product power, and the LLC circuit adopts a single-ended double-tube resonance working principle, and meanwhile adopts the Q601MOS tube and the Q602MOS tube of the superjunction technology to form the switching circuit, so that conduction and switching loss of the MOS tube are reduced, the improvement of working frequency and the reduction of heating of the MOS tube in the switching circuit are facilitated, and therefore, the product volume is effectively reduced and the working efficiency is improved. The problem that the traditional DCM PFC circuit is large in size and the standard defect that electromagnetic compatibility EMC cannot pass through a CLASS B of a CLASS during charging in the existing bidirectional inverter is solved.
3. In one embodiment, the alternating current of the external power supply enters a fuse, the fuse plays a role in protection, and the current abnormality or the voltage abnormality can be automatically disconnected; the zero line of the external power supply is connected with the NTC resistance element, the NTC resistance element is a thermistor, preferably, the SCK055 type is adopted to prevent short circuit heating, the higher the temperature is, the larger the resistance is, the overlarge current is limited to be output to a subsequent circuit, the MOV resistance element is connected with the zero line live wire in parallel, and the MOV resistance element is a piezoresistor and is used for limiting when the voltage is abnormal, so that the subsequent working voltage is in a safe range.
4. In one embodiment, the EMC suppression component consisting of CX1 component, CX2 component, LF1 component and LF2 component has less EMC interference because the working frequency of the circuit is 45-65KHz, and solves the defect of high EMC radiation caused by overhigh frequency of the bidirectional inverter power supply.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic diagram of a working principle of a control motherboard according to an embodiment of the present utility model;
fig. 2 is a schematic diagram of an operating principle of the PFC module of the control board in fig. 1;
fig. 3 is a schematic diagram illustrating an operation principle of a protection circuit of the PFC module in fig. 2;
fig. 4 is a schematic diagram illustrating an operation principle of a filter circuit of the PFC module in fig. 2;
fig. 5 is a schematic diagram illustrating an operating principle of a boost circuit of the PFC module of fig. 2;
FIG. 6 is a schematic diagram illustrating the operation of the LLC module of the control motherboard of FIG. 1;
FIG. 7 is a schematic diagram of the switching circuit of the LLC module of FIG. 6;
FIG. 8 is a schematic diagram illustrating the operation of the half-bridge filter circuit of the LLC module in FIG. 6;
fig. 9 is a schematic diagram illustrating the operation of the filtering unit of the half-bridge filtering circuit of fig. 8;
fig. 10 is a schematic diagram illustrating an operation principle of a voltage regulating unit of the half-bridge filter circuit of fig. 8.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
It should be noted that, if a directional indication (such as up, down, left, right, front, and rear … …) is involved in the embodiment of the present utility model, the directional indication is merely used to explain the relative positional relationship, movement condition, etc. between the components in a specific posture, and if the specific posture is changed, the directional indication is correspondingly changed.
In addition, if there is a description of "first", "second", etc. in the embodiments of the present utility model, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, if "and/or" and/or "are used throughout, the meaning includes three parallel schemes, for example," a and/or B "including a scheme, or B scheme, or a scheme where a and B are satisfied simultaneously. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present utility model.
Referring to fig. 1-10, one embodiment of the present utility model provides a control motherboard, comprising:
the PFC module is used for rectifying an external power supply; and
the LLC module is used for stably outputting direct current;
the input end of the PFC module is connected with an external power supply;
the output end of the PFC module is connected with the input end of the LLC module;
and the output end of the LLC module is connected with a load.
In the embodiment, the PFC module and the LLC module are combined for use, and the PFC module rectifies and outputs an external power supply, wherein the external power supply is an alternating current, and the LLC module is used for controlling and outputting a stable direct current, so that the effect of efficient charging is realized, the conduction and the loss of a switch in a circuit are reduced, and the standard defect that the charging in the existing bidirectional inverter is electromagnetic compatibility EMC and cannot pass through a CLASS B of CLASS is solved; the PFC module and the LLC module are integrated on a circuit board, thereby forming a control motherboard for charging. The load is a storage battery or a lithium battery, and the battery is charged through the PFC module and the LLC module, so that the battery charges external electric equipment.
According to the requirement, the PFC module is a CCM PFC circuit, the LLC module is an LLC circuit, and the two circuits are combined, so that the CCM PFC circuit adopts a current continuous working mode, and the conduction and switching loss of a Q201MOS tube and a D202 diode of a SIC in a superjunction process used in a boost circuit are effectively reduced, the volume of an inductor in the PFC circuit is reduced, the product power is increased, the LLC circuit adopts a single-ended double-tube resonance working principle, and meanwhile, the Q601MOS tube and the Q602MOS tube in the superjunction process form the switching circuit, so that the conduction and switching loss of the MOS tube are reduced, the working frequency is improved, the heating of the MOS tube in the switching circuit is reduced, and the product volume is effectively reduced, and the working efficiency is improved. The problem that the traditional DCM PFC circuit is large in size and the standard defect that electromagnetic compatibility EMC cannot pass through a CLASS B of a CLASS during charging in the existing bidirectional inverter is effectively solved; preferably, the MOS tube and the SIC diode are all the most advanced existing MOS tube with super junction technology, so as to improve the circuit performance.
In one embodiment, the PFC module includes:
the input end of the protection circuit is connected with the external power supply;
the input end of the filter circuit is connected with the output end of the protection circuit and is used for eliminating interference signals and reducing radiation;
the input end of the rectifying circuit is connected with the output end of the filter circuit,
and the input end of the boost circuit is connected with the output end of the rectifying circuit, and the output end of the boost circuit is connected with the input end of the LLC module.
In this embodiment, the protection circuit, the filter circuit, the rectifier circuit and the boost circuit are used in combination, so that the ac power input by the external power supply is rectified and filtered, and the LLC module outputs dc power to supply to the load, thereby realizing stable charging.
In one embodiment, the protection circuit includes:
the filter circuit comprises an F1 protection element, wherein one end of the F1 protection element is connected with the external power supply, and the other end of the F1 protection element is connected with the filter circuit;
an NTC resistive element, one end of which is connected to the external power source, and the other end of which is connected to the filter circuit; and
and one end of the MOV resistor element is connected with the output end of the F1 protection element, and the other end of the MOV resistor element is connected with the output end of the NTC resistor element.
In this embodiment, the live wire of the external power supply is connected with the F1 element, the F1 element is a fuse, preferably, 5a250V is adopted, the ac of the external power supply enters the fuse, the fuse plays a role in protection, and the current abnormality or the voltage abnormality can be automatically disconnected; the zero line of the external power supply is connected with the NTC resistance element, the NTC resistance element is a thermistor, preferably, the SCK055 type is adopted to prevent short circuit heating, the higher the temperature is, the larger the resistance is, the overlarge current is limited to be output to a subsequent circuit, the MOV resistance element is connected with the zero line live wire in parallel, and the MOV resistance element is a piezoresistor and is used for limiting when the voltage is abnormal, so that the subsequent working voltage is in a safe range.
In one embodiment, the filter circuit includes:
a CX1 element, said CX1 element being in parallel with said MOV resistive element;
the LF1 element is connected with the protection circuit;
a CX2 element, the CX2 element being arranged in parallel; and
an LF2 element, the LF2 element being connected to the LF1 element;
wherein the CX2 element is in parallel with the LF1 element or the LF2 element.
In this embodiment, the CX1 element and the CX2 element are safety capacitors, preferably, 100nF275V is used to ensure that a person is not shocked when the circuit is damaged during power-on, so as to protect the human body, the LF1 element and the LF2 element are chokes, and are used to limit the current passing through a certain frequency of the alternating current, play a filtering role, effectively inhibit the common-mode interference signal, preferably, the LF1 element adopts a choke with an L >1000UH, and the LF2 element adopts a choke with an L >10 mH.
The EMC inhibition component consists of CX1 component, CX2 component, LF1 component and LF2 component, and has the working frequency of 45-65KHz, so that all EMC interference is less, and the defect of high EMC radiation caused by overhigh frequency of the bidirectional inverter power supply is overcome.
In one embodiment, the rectifying circuit includes:
the rectifying circuit is a BD1 rectifying bridge;
the input end of the BD1 rectifier bridge is connected with the output end of the filter circuit;
and the output end of the BD1 rectifier bridge is connected with the input end of the boost circuit.
In this embodiment, the BD1 rectifier bridge is an element formed by four diodes, and is configured to rectify an alternating current to form a direct current, and output the direct current to the LLC module, so that the LLC module stably controls the direct current output, thereby achieving a charging effect, and preferably, GBU806 is used.
In one embodiment, the boost circuit includes:
the input end of the D201 diode is connected with the output end of the BD1 rectifier bridge;
the input end of the L1 inductor is connected with the output end of the BD1 rectifier bridge;
d202 diode, the said D202 diode is connected in series with said L1 inductance;
the input end of the C215 capacitor is connected with the output end of the D202 diode; and
the drain electrode of the Q201MOS tube is connected with the output end of the L1 inductor, and the source electrode of the Q201MOS tube is grounded; and
the PFC control IC is connected with the grid electrode of the Q201MOS tube;
wherein the output end of the C215 capacitor is grounded;
the output end of the D201 diode or the D202 diode is connected with the LLC module.
In this embodiment, the D201 diode is used to prevent reverse current and make current conduct in one direction, and preferably, the D201 diode uses a diode er_504, and the boost circuit is further used to control stable output of voltage; the L1 inductor adopts an inductance of L=700 UH, the C215 capacitor adopts a capacitance of 120uF/450V, and the D202 diode adopts a diode of SIC650V 4A.
The L1 inductor works in a current continuous working mode, so that the utilization rate of a magnetic core is increased, the purpose of reducing the volume of the magnetic core is achieved, the MOS tube of the super junction technology is used for the Q201MOS tube, so that the conduction loss and the switching loss are reduced when the PFC circuit works, the heating of the MOS tube is reduced, the efficiency is improved, and the SIC diode is used for the D202 diode when the PFC circuit works, and the switching loss is reduced because the SIC diode has no switching recovery time.
In one embodiment, the LLC module includes:
a switching circuit; the input end of the switching circuit is linked with the output end of the PFC module; and
and the input end of the half-bridge filter circuit is connected with the output end of the switch circuit.
In the embodiment, through the switching circuit of LLC formed by the Q601MOS tube and the Q602MOS tube and the MOS tube adopting the super junction technology, the conduction and switching loss of the circuit are greatly reduced when the circuit works, thereby reducing the heating of the MOS tube and improving the working efficiency of the main circuit; the half-bridge filter circuit is used for filtering and adjusting output voltage.
In one embodiment, the switching circuit includes:
an LLC control IC for controlling the output of the current or voltage;
the input end of the first protection unit is connected with the output end of the LLC control IC;
the grid electrode of the Q601MOS tube is connected with the output end of the first protection unit, the drain electrode of the Q601MOS tube is connected with the output end of the PFC module, and the source electrode of the Q601MOS tube is connected with the half-bridge filter circuit;
the output end of the second protection unit is connected with the output end of the LLC control IC;
the grid electrode of the Q601MOS tube is connected with the output end of the second protection unit, the drain electrode of the Q601MOS tube is connected with the source electrode of the Q601MOS tube, and the source electrode of the Q601MOS tube is connected with the half-bridge filter circuit.
In this embodiment, the LLC control IC is a constant current and constant voltage IC, which is used to stabilize the voltage and current input to the transformer of the filtering unit, and the C315 capacitor is a common capacitor, which is used for filtering.
According to the requirement, the first protection circuit comprises an R609 resistor, an R610 resistor, a D604 diode and an R611 resistor, wherein the input end of the R609 resistor is connected with the LLC control IC, the output end of the R609 resistor is connected with the grid electrode of the Q601MOS tube, the R610 resistor and the D604 diode are connected in series, the D604 diode is reversely connected, the R609 resistor is connected with the R610 resistor and the D604 diode in parallel, one end of the R611 resistor is connected with the output end of the R609 resistor or the input end of the D604 diode, and the other end of the R611 resistor is connected with the drain electrode of the Q602MOS tube;
according to the requirement, the second protection circuit comprises an R612 resistor, an R613 resistor, a D605 diode and an R614 resistor, wherein the input end of the R612 resistor is connected with the LLC control IC, the output end of the R612 resistor is connected with the grid electrode of the Q602MOS tube, the R613 resistor and the D605 diode are connected in series, the D605 diode is reversely connected, the R612 resistor is connected with the R613 resistor and the D605 diode in parallel, one end of the R614 resistor is connected with the output end of the R612 resistor or the input end of the D605 diode, and the other end of the R614 resistor is connected with the C315 capacitor or grounded;
and the resistors of the first protection unit and the second protection unit are used for controlling the output voltage and the current of the IC.
The switching circuit of LLC formed by the Q601MOS tube and the Q602MOS tube adopts the MOS tube of the super junction technology, so that the conduction and switching loss of the circuit are greatly reduced when the circuit works, thereby reducing the heating of the MOS tube and improving the working efficiency of the main circuit.
In one embodiment, the half-bridge filter circuit includes:
the input end of the filtering unit is connected with the output end of the switching circuit; and
and the input end of the voltage regulating unit is connected with the output end of the filtering unit, and the output end of the voltage regulating unit is connected with the load.
In this embodiment, the filtering unit is configured to prevent the external power supply from being suddenly disconnected, the transformer has no input, ensure normal output within a certain time, and adjust the output voltage until the slow output is zero, thereby realizing the output voltage value by changing the resistor.
According to the requirement, the filter unit comprises a first C315 capacitor, a transformer, an R320 resistor, a second C315 capacitor, a D307 diode, a D308 diode, an R321 resistor, a C314 capacitor and a C616 capacitor, one end of the first C315 capacitor is connected with the source of the Q602MOS tube, the other end of the first C315 capacitor is connected with the transformer, the source of the Q601MOS tube is also connected with the transformer, the R320 resistor is connected with the second C315 capacitor in series, the R320 resistor is connected with the transformer, the D307 diode is connected with the R320 resistor and the second C315 capacitor in parallel, the D307 diode is reversely connected, the D308 diode is connected with the R321 resistor and the C314 capacitor in parallel, the R321 resistor and the C314 capacitor are connected in series, the C616 capacitor is connected in parallel, the output end of the C616 is grounded, the voltage regulating unit is connected with the C616 capacitor in parallel, and the voltage regulating unit comprises an R14 resistor, an R326 resistor and an R327 resistor or an R327 resistor and an R327 resistor are connected in parallel, and an R327 resistor is connected with the power supply in series.
By combining the innovative PFC circuit and the LLC circuit and adopting the advanced MOS tube and the SIC diode, the purposes of reducing energy consumption and improving working efficiency are achieved. Meanwhile, as the switching frequency works at 45-65KHz, EMC inhibition is easier to realize the standards of CLASS B.
According to the requirement, the control main board also comprises a battery protection circuit, a discharging circuit and the like, and the connection mode is electric connection.
An embodiment of the present utility model further provides an energy storage power supply, including a control motherboard as described in any one of the above.
According to the needs, energy storage power supply still includes the battery, the battery with control mainboard electricity is connected to realize charging power consumption, energy storage power supply still includes the casing, battery and control mainboard are installed in the casing.
In the field of electronic circuits, signals are very important tools for characterizing system characteristics, which relate to description of signal flow directions, and dynamically describe circuit hardware structures by using signal relationships, which are currently common ways in many related applications, and the description of the signal relationships should not be considered as a method or a procedure simply, but should be considered as functional limitations or method features of the circuit structures, where the functional limitations or the method features of the circuit structures are in accordance with the requirements of the protection object of the utility model.
The foregoing description is only of the preferred embodiments of the present utility model and is not intended to limit the scope of the utility model, and all equivalent structural changes made by the description of the present utility model and the accompanying drawings or direct/indirect application in other related technical fields are included in the scope of the utility model.
Claims (10)
1. A control motherboard, comprising:
the PFC module is used for rectifying an external power supply; and
the LLC module is used for stably outputting direct current;
the input end of the PFC module is connected with an external power supply;
the output end of the PFC module is connected with the input end of the LLC module;
and the output end of the LLC module is connected with a load.
2. The control motherboard of claim 1, wherein the PFC module comprises:
the input end of the protection circuit is connected with the external power supply;
the input end of the filter circuit is connected with the output end of the protection circuit and is used for eliminating interference signals and reducing radiation;
the input end of the rectifying circuit is connected with the output end of the filter circuit,
and the input end of the boost circuit is connected with the output end of the rectifying circuit, and the output end of the boost circuit is connected with the input end of the LLC module.
3. The control motherboard of claim 2, wherein the protection circuit comprises:
the filter circuit comprises an F1 protection element, wherein one end of the F1 protection element is connected with the external power supply, and the other end of the F1 protection element is connected with the filter circuit;
an NTC resistive element, one end of which is connected to the external power source, and the other end of which is connected to the filter circuit; and
and one end of the MOV resistor element is connected with the output end of the F1 protection element, and the other end of the MOV resistor element is connected with the output end of the NTC resistor element.
4. The control motherboard of claim 3, wherein said filter circuit comprises:
a CX1 element, said CX1 element being in parallel with said MOV resistive element;
the LF1 element is connected with the protection circuit;
a CX2 element, the CX2 element being arranged in parallel; and
an LF2 element, the LF2 element being connected to the LF1 element;
wherein the CX2 element is in parallel with the LF1 element or the LF2 element.
5. The control motherboard of claim 4, wherein said rectifying circuit comprises:
the rectifying circuit is a BD1 rectifying bridge;
the input end of the BD1 rectifier bridge is connected with the output end of the filter circuit;
and the output end of the BD1 rectifier bridge is connected with the input end of the boost circuit.
6. The control motherboard of claim 5, wherein said boost circuit comprises:
the input end of the D201 diode is connected with the output end of the BD1 rectifier bridge;
the input end of the L1 inductor is connected with the output end of the BD1 rectifier bridge;
d202 diode, the said D202 diode is connected in series with said L1 inductance;
the input end of the C215 capacitor is connected with the output end of the D202 diode; and
the drain electrode of the Q201MOS tube is connected with the output end of the L1 inductor, and the source electrode of the Q201MOS tube is grounded; and
the PFC control IC is connected with the grid electrode of the Q201MOS tube;
wherein the output end of the C215 capacitor is grounded;
the output end of the D201 diode or the D202 diode is connected with the LLC module.
7. A control motherboard according to claim 3, wherein the LLC module includes:
a switching circuit; the input end of the switching circuit is linked with the output end of the PFC module; and
and the input end of the half-bridge filter circuit is connected with the output end of the switch circuit.
8. The control motherboard of claim 7, wherein said switching circuit comprises:
an LLC control IC for controlling the output of the current or voltage;
the input end of the first protection unit is connected with the output end of the LLC control IC;
the grid electrode of the Q601MOS tube is connected with the output end of the first protection unit, the drain electrode of the Q601MOS tube is connected with the output end of the PFC module, and the source electrode of the Q601MOS tube is connected with the half-bridge filter circuit;
the output end of the second protection unit is connected with the output end of the LLC control IC;
the grid electrode of the Q601MOS tube is connected with the output end of the second protection unit, the drain electrode of the Q601MOS tube is connected with the source electrode of the Q601MOS tube, and the source electrode of the Q601MOS tube is connected with the half-bridge filter circuit.
9. The control motherboard of claim 7, wherein said half-bridge filter circuit comprises:
the input end of the filtering unit is connected with the output end of the switching circuit; and
and the input end of the voltage regulating unit is connected with the output end of the filtering unit, and the output end of the voltage regulating unit is connected with the load.
10. An energy storage power supply comprising a control motherboard according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223039216.8U CN219420353U (en) | 2022-11-15 | 2022-11-15 | Control main board and energy storage power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223039216.8U CN219420353U (en) | 2022-11-15 | 2022-11-15 | Control main board and energy storage power supply |
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| CN202223039216.8U Active CN219420353U (en) | 2022-11-15 | 2022-11-15 | Control main board and energy storage power supply |
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