CN218771790U - Starting power supply with bidirectional energy storage function - Google Patents
Starting power supply with bidirectional energy storage function Download PDFInfo
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- CN218771790U CN218771790U CN202223431758.XU CN202223431758U CN218771790U CN 218771790 U CN218771790 U CN 218771790U CN 202223431758 U CN202223431758 U CN 202223431758U CN 218771790 U CN218771790 U CN 218771790U
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- 238000004146 energy storage Methods 0.000 title claims abstract description 16
- 230000002457 bidirectional effect Effects 0.000 title claims abstract description 7
- 239000003990 capacitor Substances 0.000 claims abstract description 51
- 238000001914 filtration Methods 0.000 claims abstract description 45
- 230000009466 transformation Effects 0.000 claims abstract description 11
- 238000000034 method Methods 0.000 description 5
- 230000008859 change Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
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Abstract
A starting power supply with bidirectional energy storage comprises a battery, a first rectifying module, a voltage transformation module, a second rectifying module, a boosting module, an inversion module, a filtering module and a relay switching module which are electrically connected in sequence; the boosting module comprises an inductor L4, a thirteenth IGBT, a fourteenth IGBT, an electrolytic capacitor CE3 and a capacitor C5, and the emitting electrodes and the collecting electrodes of the thirteenth IGBT and the fourteenth IGBT are respectively connected with a diode in parallel; the positive output end of the second rectifying module, the inductor L4 and the emitting electrode of the thirteenth IGBT are electrically connected in sequence, the collecting electrode of the thirteenth IGBT and the negative output end of the second rectifying module are electrically connected with the inverter module, the emitting electrode of the thirteenth IGBT is electrically connected with the collecting electrode of the fourteenth IGBT, the emitting electrode of the fourteenth IGBT is electrically connected with the negative output end of the second rectifying module, and two ends of the electrolytic capacitor CE3 and the capacitor C5 are respectively electrically connected with the collecting electrode of the thirteenth IGBT and the negative output end of the second rectifying module. The alternating current power supply can output alternating current with higher precision.
Description
Technical Field
The utility model belongs to the technical field of the starting power supply technique and specifically relates to a starting power supply of two-way energy storage.
Background
The automobile starting power supply (car jumpstarter), also called as an automobile emergency starting power supply, is a portable starting power supply integrating power supply and charging functions, and can help automobile starting in an emergency manner when the automobile is flameout and anchored and cannot be started. The starting power supply with bidirectional energy storage generally uses the same main loop to realize direct current-alternating current and alternating current-direct current conversion, and the working condition can be divided into charging and inversion. In the design of the bidirectional energy storage power supply, since the transformation ratio of the transformer is constant, the problem that the output 220V and the input 220V need different transformation ratios of the transformer is faced.
In contrast, in the prior art, a high dc voltage can be obtained by using a voltage doubler rectification method in a rectifier circuit and reducing the transformation ratio of a transformer. However, during inversion, since the inverter operates in a passive rectification state, the bus voltage after the rectification circuit is still inevitably changed along with the change of the input voltage, which causes that duty ratio adjustment is required to be performed all the time in the subsequent SPWM inversion according to the change of the input voltage, and further causes system instability, so that the accuracy of the output voltage is low, and the ripple change is large.
SUMMERY OF THE UTILITY MODEL
The utility model provides a starting power supply of two-way energy storage can reduce the step length and the number of times of adjusting in the contravariant module, the higher alternating current of output precision.
In order to solve the above problem, the utility model adopts the following technical scheme:
the embodiment of the utility model provides a two-way energy storage starting power supply, which comprises a battery, a first rectifying module, a voltage transformation module, a second rectifying module, a boosting module, an inversion module, a filtering module and a relay switching module which are electrically connected in sequence; the boosting module comprises an inductor L4, a thirteenth IGBT, a fourteenth IGBT, an electrolytic capacitor CE3 and a capacitor C5, and the emitters and the collectors of the thirteenth I GBT and the fourteenth IGBT are connected with diodes in parallel; the positive output end of the second rectifying module, the inductor L4 and the emitting electrode of the thirteenth I GBT are electrically connected in sequence, the collecting electrode of the thirteenth IGBT and the negative output end of the second rectifying module are electrically connected with the inverter module, the emitting electrode of the thirteenth I GBT is electrically connected with the collecting electrode of the fourteenth IGBT, the emitting electrode of the fourteenth IGBT is electrically connected with the negative output end of the second rectifying module, and two ends of the electrolytic capacitor CE3 and the capacitor C5 are respectively and electrically connected with the collecting electrode of the thirteenth IGBT and the negative output end of the second rectifying module.
In some embodiments, the voltage transformation module is a transformer.
In some embodiments, the first rectifying module comprises a first MOS transistor, a second MOS transistor, a third MOS transistor and a fourth MOS transistor; the drain electrode of the first MOS tube is electrically connected with the drain electrode of the third MOS tube, the drain electrode of the first MOS tube is electrically connected with the positive electrode of the battery, and the source electrode of the first MOS tube is electrically connected with the drain electrode of the second MOS tube; the source electrode of the second MOS tube is electrically connected with the source electrode of the fourth MOS tube, the source electrode of the second MOS tube is electrically connected with the cathode of the battery, and the source electrode of the third MOS tube is electrically connected with the drain electrode of the fourth MOS tube; and a node between the source electrode of the first MOS tube and the drain electrode of the second MOS tube and a node between the source electrode of the third MOS tube and the drain electrode of the fourth MOS tube are respectively and electrically connected with the two input ends of the transformer.
In some embodiments, the second rectifying module includes a fifth MOS transistor, a sixth MOS transistor, a seventh MOS transistor, an eighth MOS transistor, and a capacitor C1; the drain electrode of the fifth MOS tube is electrically connected with the drain electrode of the seventh MOS tube, the drain electrode of the seventh MOS tube is the positive output end of the second rectifying module, and the source electrode of the fifth MOS tube is electrically connected with the drain electrode of the sixth MOS tube; a source electrode of the sixth MOS tube is electrically connected with a source electrode of the eighth MOS tube, the source electrode of the eighth MOS tube is a negative output end of the second rectification module, and a source electrode of the seventh MOS tube is electrically connected with a drain electrode of the eighth MOS tube; and a node between the source electrode of the fifth MOS tube and the drain electrode of the sixth MOS tube is electrically connected with one output end of the transformer, and the other output end of the transformer, the capacitor C1 and a node between the source electrode of the seventh MOS tube and the drain electrode of the eighth MOS tube are electrically connected in sequence.
In some embodiments, the rectifier further comprises an electrolytic capacitor CE2 and a capacitor C2, and both ends of the electrolytic capacitor CE2 and both ends of the capacitor C2 are electrically connected to the positive output end of the second rectifier module and the negative output end of the second rectifier module, respectively.
In some embodiments, the inverter module comprises a ninth IGBT, a tenth IGBT, an eleventh IGBT, and a twelfth IGBT; the emitters and the collectors of the ninth I GBT, the tenth I GBT, the eleventh I GBT and the twelfth I GBT are all connected with diodes in parallel; a collector of the ninth IGBTs is electrically connected to a collector of the eleventh IGBTs, a collector of the ninth IGBTs is electrically connected to a collector of the thirteenth IGBTs, and an emitter of the ninth IGBTs is electrically connected to a collector of the tenth IGBTs; an emitter of the tenth IGBT is electrically connected with an emitter of the twelfth I GBT, an emitter of the tenth I GBT is electrically connected with the negative output end of the second rectifying module, and an emitter of the eleventh I GBT is electrically connected with a collector of the twelfth IGBT; and a node between the emitter of the ninth I GBT and the collector of the tenth I GBT and a node between the emitter of the eleventh I GBT and the collector of the twelfth I GBT are electrically connected with the filtering module.
In some embodiments, the filtering module includes a first filtering module and a second filtering module, the first filtering module includes an inductor L1, an inductor L2 and a capacitor C3, a node between an emitter of the eleventh I GBT and a collector of the twelfth I GBT, the inductor L1 and the second filtering module are electrically connected in sequence, a node between an emitter of the ninth I GBT and a collector of the tenth I GBT, the inductor L2 and the second filtering module are electrically connected in sequence, and a node between the inductor L1 and the second filtering module and a node between the inductor L2 and the second filtering module are electrically connected to two ends of the capacitor C3, respectively.
In some embodiments, the second filtering module includes a common-mode inductor and a capacitor C4, two input ends of the common-mode inductor are electrically connected to the inductor L1 and the inductor L2, respectively, two output ends of the common-mode inductor are electrically connected to the relay switching module, and two ends of the capacitor C4 are electrically connected to two output ends of the common-mode inductor, respectively.
The utility model discloses following beneficial effect has at least: when the circuit works in an inversion state, the voltage of the battery is subjected to boosting and rectification conversion to be used as the input voltage of the boosting module, when the thirteenth IGBT is in a turn-off state, only the parallel diode plays a role, the diode, the inductor L3, the fourteenth IGBT, the electrolytic capacitor CE3 and the capacitor C5 form a BOOST circuit, the voltage is boosted to a value required by a system again, and then the stable 220V alternating current is output after the voltage is subjected to inversion by the inversion module and filtering by the filtering module; when the circuit works in a charging state, the thirteenth IGBT is in a conducting state, the fourteenth IGBT is in a switching-off state, and the circuit can normally charge the battery; therefore, the utility model discloses increase one-level active control's the module that steps up, make entire system be in active control's state to can use stable direct current to carry out the contravariant when making contravariant module contravariant, the step length of regulation and the reduction that the number of times can be great finally can the higher alternating current of output precision, and when charging, let the module that steps up be in failure state again, do not influence normal function of charging.
Drawings
Fig. 1 is a schematic circuit diagram of a bidirectional energy storage starting power supply according to an embodiment of the present invention;
fig. 2 is a schematic circuit diagram of a relay switching module according to an embodiment of the present invention.
Wherein the reference numerals are: the device comprises a first rectification module 1, a transformation module 2, a second rectification module 3, an inversion module 4, a first filtering module 5, a second filtering module 6, a relay switching module 7 and a boosting module 8.
Detailed Description
The present disclosure provides the following description with reference to the accompanying drawings to assist in a comprehensive understanding of various embodiments of the disclosure as defined by the claims and their equivalents. The description includes various specific details to aid understanding, but such details are to be regarded as exemplary only. Accordingly, those of ordinary skill in the art will recognize that various changes and modifications of the various embodiments described herein can be made without departing from the scope and spirit of the present disclosure. Moreover, the descriptions of the disclosed functions and configurations may be omitted for clarity and conciseness.
The terms and words used in the following description and claims are not limited to the literal meanings, but are used by the inventors to enable a clear and consistent understanding of the disclosure. Accordingly, it will be apparent to those skilled in the art that the following descriptions of the various embodiments of the present disclosure are provided for illustration only and not for the purpose of limiting the disclosure as defined by the appended claims and their equivalents.
The terms "having," "may have," "including," or "may include" used in various embodiments of the present disclosure indicate the presence of the respective functions, operations, elements, etc., disclosed, but do not limit additional one or more functions, operations, elements, etc. Furthermore, it is to be understood that the terms "comprises" or "comprising," when used in various embodiments of the present disclosure, are intended to specify the presence of stated features, integers, operations, elements, components, or groups thereof, but do not preclude the presence or addition of one or more other features, integers, operations, elements, components, or groups thereof.
It will be understood that when an element (e.g., a first element) is "connected" to another element (e.g., a second element), the element can be directly connected to the other element or intervening elements (e.g., a third element) may be present.
An embodiment of the utility model provides a two-way energy storage's starting power supply, as shown in fig. 1, including battery, first rectifier module 1, vary voltage module 2, second rectifier module 3, the module 8 that steps up, contravariant module 4, filtering module and the relay switch module 7 of electricity connection in order. Wherein, in the process of charging the battery, the rightmost side of the circuit is the input end, the filtering module is used for filtering, the inversion module 4 forms the rectifying circuit, the second rectification module 3 forms the inversion circuit, the transformation module 2 is used for reducing the voltage, the first rectification module 1 carries out rectification, in the inversion process, the battery discharges, the rightmost side of the circuit is the output end, the first rectification module 1 carries out inversion, the transformation module 2 is used for boosting the voltage, the second rectification module 3 carries out rectification, the inversion module 4 carries out inversion, and the filtering module carries out filtering. Therefore, in the process of switching between the charging mode and the inversion mode, the rightmost side of the circuit is switched between being used as an input port and an output port, and the relay switching module 7 is used for switching and selecting a proper port as the input port or the output port.
The boosting module 8 comprises an inductor L4, a thirteenth I GBT, a fourteenth I GBT, an electrolytic capacitor CE3 and a capacitor C5, wherein the emitter and the collector of the thirteenth I GBT (Q13 in FIG. 1) and the fourteenth I GBT (Q14 in FIG. 1) are respectively connected with a diode in parallel; the positive output end of the second rectifying module, the inductor L4 and the emitter of the thirteenth I GBT are electrically connected in sequence, the collector of the thirteenth I GBT and the negative output end of the second rectifying module are electrically connected with the inverter module, the emitter of the thirteenth I GBT is electrically connected with the collector of the fourteenth I GBT, the emitter of the fourteenth I GBT is electrically connected with the negative output end of the second rectifying module, and two ends of the electrolytic capacitor CE3 and the capacitor C5 are respectively and electrically connected with the collector of the thirteenth I GBT and the negative output end of the second rectifying module. The gates of the thirteenth I GBT and the fourteenth I GBT are electrically connected with the corresponding controllers, and the controllers can control the conduction states of the thirteenth I GBT and the fourteenth I GBT according to corresponding instructions.
When the whole circuit works in an inversion state, the voltage of the battery is used as the input voltage of the boosting module 8 after being boosted and rectified, when the thirteenth I GBT is in a turn-off state, only the diode connected in parallel with the thirteenth I GBT plays a role, the diode, the inductor L3, the fourteenth I GBT, the electrolytic capacitor CE3 and the capacitor C5 form a BOOST boosting circuit, the voltage is boosted to a value required by a system again, and then stable 220V alternating current is output after being subjected to inversion of the inverting module 4 and filtering of the filtering module; when the whole circuit works in a charging state, the thirteenth I GBT is in a conducting state, the fourteenth I GBT is in a switching-off state, and the circuit can normally charge the battery; therefore, the utility model discloses increased one-level active control's the module that steps up, made entire system be in active control's state to can use stable direct current to carry out the contravariant when making contravariant module contravariant, the step length of regulation and the reduction that the number of times can be great can the higher alternating current of output precision finally, and when charging, let the module that steps up be in failure state again, do not influence normal function of charging.
In some embodiments, the transforming module 2 is a transformer T that steps up in the inverting mode and steps down in the charging mode.
Further, the first rectifying module 1 includes a first MOS transistor Q1, a second MOS transistor Q2, a third MOS transistor Q3, and a fourth MOS transistor Q4; the drain electrode of the first MOS tube is electrically connected with the drain electrode of the third MOS tube, the drain electrode of the first MOS tube is electrically connected with the positive electrode of the battery, and the source electrode of the first MOS tube is electrically connected with the drain electrode of the second MOS tube; the source electrode of the second MOS tube is electrically connected with the source electrode of the fourth MOS tube, the source electrode of the second MOS tube is electrically connected with the cathode of the battery, and the source electrode of the third MOS tube is electrically connected with the drain electrode of the fourth MOS tube; and a node between the source electrode of the first MOS tube and the drain electrode of the second MOS tube and a node between the source electrode of the third MOS tube and the drain electrode of the fourth MOS tube are respectively and electrically connected with two input ends of the transformer. The grids of the first MOS tube Q1, the second MOS tube Q2, the third MOS tube Q3 and the fourth MOS tube Q4 are electrically connected with the controller, and the controller can control the first MOS tube Q1, the second MOS tube Q2, the third MOS tube Q3 and the fourth MOS tube Q4 to be switched on or switched off according to corresponding instructions. In a charging mode, the first MOS tube Q1, the second MOS tube Q2, the third MOS tube Q3 and the fourth MOS tube Q4 are not conducted, and only diodes which are respectively connected in parallel work to form a bridge rectifier circuit. Under the inversion mode, the controller controls the first MOS transistor Q1, the second MOS transistor Q2, the third MOS transistor Q3 and the fourth MOS transistor Q4 to be switched on according to the set frequency so as to realize full-bridge inversion.
Further, the second rectification module 3 includes a fifth MOS transistor Q5, a sixth MOS transistor Q6, a seventh MOS transistor Q7, an eighth MOS transistor Q8, and a capacitor C1; the drain electrode of the fifth MOS tube is electrically connected with the drain electrode of the seventh MOS tube, the drain electrode of the seventh MOS tube is the positive output end of the second rectifying module, and the source electrode of the fifth MOS tube is electrically connected with the drain electrode of the sixth MOS tube; a source electrode of the sixth MOS tube is electrically connected with a source electrode of the eighth MOS tube, the source electrode of the eighth MOS tube is a negative output end of the second rectifying module, and a source electrode of the seventh MOS tube is electrically connected with a drain electrode of the eighth MOS tube; and a node between the source electrode of the fifth MOS tube and the drain electrode of the sixth MOS tube is electrically connected with one output end of the transformer, and the other output end of the transformer, the capacitor C1 and a node between the source electrode of the seventh MOS tube and the drain electrode of the eighth MOS tube are electrically connected in sequence. The grids of the fifth MOS tube Q5, the sixth MOS tube Q6, the seventh MOS tube Q7 and the eighth MOS tube Q8 are electrically connected with the controller, and the controller can control the fifth MOS tube Q5, the sixth MOS tube Q6, the seventh MOS tube Q7 and the eighth MOS tube Q8 to be switched on or switched off according to corresponding instructions. In a charging mode, the fifth MOS transistor Q5, the sixth MOS transistor Q6, the seventh MOS transistor Q7, and the eighth MOS transistor Q8 are turned on according to a set frequency to realize full-bridge inversion; under the inversion mode, the fifth MOS transistor Q5, the sixth MOS transistor Q6, the seventh MOS transistor Q7, and the eighth MOS transistor Q8 are all not turned on, and only the respective parallel diodes work to form a bridge rectifier circuit.
In some embodiments, the rectifier further includes an electrolytic capacitor CE2 and a capacitor C2, and both ends of the electrolytic capacitor CE2 and the capacitor C2 are electrically connected to the positive output end of the second rectifier module 3 and the negative output end of the second rectifier module 3, respectively. When the circuit works in a charging state, the thirteenth I GBT is in a conducting state, the fourteenth I GBT is in a switching-off state, and the inductor L3, the electrolytic capacitor CE2 and the capacitor C2 form an LC filter circuit for filtering.
In some embodiments, the inversion module includes a ninth I GBT (Q9 in fig. 1), a tenth I GBT (Q10 in fig. 1), an eleventh I GBT (Q11 in fig. 1), and a twelfth I GBT (Q12 in fig. 1); the emitters and the collectors of the ninth I GBT, the tenth I GBT, the eleventh I GBT and the twelfth I GBT are all connected with diodes in parallel; a collector of the ninth IGBT is electrically connected to a collector of the eleventh IGBT, a collector of the ninth IGBT is electrically connected to a collector of the thirteenth IGBT, and an emitter of the ninth IGBT is electrically connected to a collector of the tenth IGBT; an emitter of the tenth I GBT is electrically connected with an emitter of the twelfth I GBT, an emitter of the tenth I GBT is electrically connected with a negative output end of the second rectifying module, and an emitter of the eleventh I GBT is electrically connected with a collector of the twelfth I GBT; and a node between the emitter of the ninth I GBT and the collector of the tenth I GBT and a node between the emitter of the eleventh I GBT and the collector of the twelfth I GBT are electrically connected with the filtering module. The gates of the ninth igbt, the tenth igbt, the eleventh igbt and the twelfth igbt are all electrically connected with the controller, and the controller can control the ninth igbt, the tenth igbt, the eleventh igbt and the twelfth igbt to be switched on or off according to corresponding instructions. In the charging mode, the ninth I GBT, the tenth I GBT, the eleventh I GBT and the twelfth I GBT are all not conducted, and only the diodes connected in parallel work to form the bridge rectifier circuit. And in the inversion mode, the controller controls the ninth IGBT, the tenth I GBT, the eleventh I GBT and the twelfth I GBT to be conducted according to a set frequency so as to realize SPWM inversion.
Further, the filtering module comprises a first filtering module 5 and a second filtering module 6, the first filtering module 5 comprises an inductor L1, an inductor L2 and a capacitor C3, a node between an emitter of the eleventh I GBT and a collector of the twelfth I GBT, the inductor L1 and the second filtering module are electrically connected in sequence, a node between an emitter of the ninth I GBT and a collector of the tenth I GBT, the inductor L2 and the second filtering module are electrically connected in sequence, and a node between the inductor L1 and the second filtering module and a node between the inductor L2 and the second filtering module are electrically connected with two ends of the capacitor C3 respectively. The inductor L1, the inductor L2 and the capacitor C3 form an LC filter circuit to filter out impurity waves in the circuit.
Furthermore, the second filtering module 6 includes a common-mode inductor and a capacitor C4, two input ends of the common-mode inductor are electrically connected to the inductor L1 and the inductor L2, two output ends of the common-mode inductor are electrically connected to the relay switching module, and two ends of the capacitor C4 are electrically connected to two output ends of the common-mode inductor.
In some embodiments, as shown in fig. 2, the relay switching module includes a common mode inductor L4, a plurality of relays, and a plurality of sets of ports, and a corresponding input or output port can be selected by using the plurality of relays cooperatively.
The foregoing is a more detailed description of the present invention that is presented in conjunction with specific embodiments, and it is not to be understood that the specific embodiments of the present invention are limited to these descriptions. To the utility model belongs to the technical field of ordinary technical personnel, do not deviate from the utility model discloses under the prerequisite of design, can also make a plurality of simple deductions or replacement.
Claims (8)
1. A starting power supply with bidirectional energy storage is characterized in that: the device comprises a battery, a first rectification module, a voltage transformation module, a second rectification module, a boosting module, an inversion module, a filtering module and a relay switching module which are electrically connected in sequence; the boosting module comprises an inductor L4, a thirteenth IGBT, a fourteenth IGBT, an electrolytic capacitor CE3 and a capacitor C5, and the emitting electrodes and the collecting electrodes of the thirteenth IGBT and the fourteenth IGBT are respectively connected with a diode in parallel; the positive output end of the second rectifying module, the inductor L4 and the emitting electrode of the thirteenth IGBT are electrically connected in sequence, the collecting electrode of the thirteenth IGBT and the negative output end of the second rectifying module are electrically connected with the inverter module, the emitting electrode of the thirteenth IGBT is electrically connected with the collecting electrode of the fourteenth IGBT, the emitting electrode of the fourteenth IGBT is electrically connected with the negative output end of the second rectifying module, and two ends of the electrolytic capacitor CE3 and the capacitor C5 are respectively electrically connected with the collecting electrode of the thirteenth IGBT and the negative output end of the second rectifying module.
2. A bi-directional energy-storing startup power supply as recited in claim 1, wherein: the voltage transformation module is a transformer.
3. The bi-directional energy storage starting power supply of claim 2, wherein: the first rectification module comprises a first MOS tube, a second MOS tube, a third MOS tube and a fourth MOS tube; the drain electrode of the first MOS tube is electrically connected with the drain electrode of the third MOS tube, the drain electrode of the first MOS tube is electrically connected with the positive electrode of the battery, and the source electrode of the first MOS tube is electrically connected with the drain electrode of the second MOS tube; the source electrode of the second MOS tube is electrically connected with the source electrode of the fourth MOS tube, the source electrode of the second MOS tube is electrically connected with the cathode of the battery, and the source electrode of the third MOS tube is electrically connected with the drain electrode of the fourth MOS tube; and a node between the source electrode of the first MOS tube and the drain electrode of the second MOS tube and a node between the source electrode of the third MOS tube and the drain electrode of the fourth MOS tube are respectively and electrically connected with the two input ends of the transformer.
4. The bi-directional energy storage starting power supply of claim 2, wherein: the second rectifying module comprises a fifth MOS tube, a sixth MOS tube, a seventh MOS tube, an eighth MOS tube and a capacitor C1; the drain electrode of the fifth MOS tube is electrically connected with the drain electrode of the seventh MOS tube, the drain electrode of the seventh MOS tube is the positive output end of the second rectifying module, and the source electrode of the fifth MOS tube is electrically connected with the drain electrode of the sixth MOS tube; a source electrode of the sixth MOS tube is electrically connected with a source electrode of the eighth MOS tube, the source electrode of the eighth MOS tube is a negative output end of the second rectifying module, and a source electrode of the seventh MOS tube is electrically connected with a drain electrode of the eighth MOS tube; and a node between the source electrode of the fifth MOS tube and the drain electrode of the sixth MOS tube is electrically connected with one output end of the transformer, and the other output end of the transformer, the capacitor C1 and a node between the source electrode of the seventh MOS tube and the drain electrode of the eighth MOS tube are electrically connected in sequence.
5. A bi-directional energy storage startup power supply according to any one of claims 1-4, characterized in that: the two ends of the electrolytic capacitor CE2 and the two ends of the capacitor C2 are respectively and electrically connected with the positive output end of the second rectifying module and the negative output end of the second rectifying module.
6. A bi-directional energy storage startup power supply according to any one of claims 1-4, characterized in that: the inversion module comprises a ninth IGBT, a tenth IGBT, an eleventh IGBT and a twelfth IGBT; the emitting electrodes and the collecting electrodes of the ninth IGBT, the tenth IGBT, the eleventh IGBT and the twelfth IGBT are all connected with diodes in parallel; a collector of the ninth IGBT is electrically connected with a collector of the eleventh IGBT, a collector of the ninth IGBT is electrically connected with a collector of the thirteenth IGBT, and an emitter of the ninth IGBT is electrically connected with a collector of the tenth IGBT; an emitter of the tenth IGBT is electrically connected with an emitter of the twelfth IGBT, the emitter of the tenth IGBT is electrically connected with the negative output end of the second rectifying module, and the emitter of the eleventh IGBT is electrically connected with a collector of the twelfth IGBT; and a node between the emitter of the ninth IGBT and the collector of the tenth IGBT and a node between the emitter of the eleventh IGBT and the collector of the twelfth IGBT are electrically connected with the filtering module.
7. A bi-directional energy-storing startup power supply as recited in claim 6, wherein: the filtering module comprises a first filtering module and a second filtering module, the first filtering module comprises an inductor L1, an inductor L2 and a capacitor C3, a node between an emitting electrode of the eleventh IGBT and a collecting electrode of the twelfth IGBT, the inductor L1 and the second filtering module are sequentially and electrically connected, a node between an emitting electrode of the ninth IGBT and a collecting electrode of the tenth IGBT, the inductor L2 and the second filtering module are sequentially and electrically connected, and a node between the inductor L1 and the second filtering module and a node between the inductor L2 and the second filtering module are respectively and electrically connected with two ends of the capacitor C3.
8. The bi-directional energy storage starting power supply of claim 7, wherein: the second filtering module comprises a common-mode inductor and a capacitor C4, two input ends of the common-mode inductor are electrically connected with the inductor L1 and the inductor L2 respectively, two output ends of the common-mode inductor are electrically connected with the relay switching module, and two ends of the capacitor C4 are electrically connected with two output ends of the common-mode inductor respectively.
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| CN202223431758.XU CN218771790U (en) | 2022-12-20 | 2022-12-20 | Starting power supply with bidirectional energy storage function |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN116505779A (en) * | 2023-05-17 | 2023-07-28 | 江苏科曜能源科技有限公司 | Single-phase energy storage device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN116505779A (en) * | 2023-05-17 | 2023-07-28 | 江苏科曜能源科技有限公司 | Single-phase energy storage device |
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