CN211296551U - Compatible alternating current-direct current output control circuit and vehicle-mounted equipment - Google Patents
Compatible alternating current-direct current output control circuit and vehicle-mounted equipment Download PDFInfo
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- CN211296551U CN211296551U CN201922116242.8U CN201922116242U CN211296551U CN 211296551 U CN211296551 U CN 211296551U CN 201922116242 U CN201922116242 U CN 201922116242U CN 211296551 U CN211296551 U CN 211296551U
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Abstract
The utility model relates to an on-vehicle power supply circuit field especially relates to compatible alternating current-direct current output circuit and mobile unit. The compatible alternating current and direct current output control circuit comprises an active load, an AC/DC circuit, a first energy storage circuit, a second energy storage circuit, a switching circuit, a driving circuit and a controller which are sequentially connected in series, wherein the second energy storage circuit is electrically connected with the AC/DC circuit, the switching circuit is respectively connected with the first energy storage circuit and the second energy storage circuit, the driving circuit is connected with the AC/DC circuit, the controller is respectively connected with the switching circuit, the driving circuit and an external load, and the controller controls the working states of the switching circuit and the driving circuit according to the output voltage type of the voltage provided by the active load to the external load so that the active load provides power to the external load. Therefore, the alternating current and direct current output control circuit can provide corresponding voltage signals to an external load according to the type of the output voltage, and the purpose of being compatible with alternating current and direct current output is achieved.
Description
Technical Field
The utility model relates to a vehicle mounted power supply circuit technical field especially relates to compatible alternating current-direct current output control circuit and mobile unit.
Background
With the improvement of environmental protection consciousness of people, new energy industries such as electric automobiles, photovoltaic power generation, wind power generation and the like are rapidly developed. As is well known, in the field of power supplies, there is a diversity of voltage forms of loads and sources, and current DCAC converters can only output an alternating current voltage, and in order to supply power to a direct current load, an additional ACDC and an isolation DCDC link are required. And the working efficiency and the reliability of the system are greatly reduced by multiple voltage type conversion.
SUMMERY OF THE UTILITY MODEL
An object of the embodiment of the utility model is to provide a compatible alternating current-direct current output control circuit, it can be according to the load type of difference, and output is exchanged or direct current, reaches the purpose of the output of compatible alternating current-direct current.
In order to solve the above technical problem, an embodiment of the present invention provides the following technical solution:
in a first aspect, the embodiment of the utility model provides an alternating current-direct current output control circuit is applied to on-vehicle system, compatible alternating current-direct current output control circuit is including the first tank circuit, the AC/DC circuit that concatenate in proper order and can provide the active load of power, first tank circuit is used for storing the warp the electric energy of AC/DC circuit output, the AC/DC circuit is used for converting voltage state, and voltage state includes direct current voltage state or alternating current voltage state, alternating current-direct current output control circuit still includes:
a second tank circuit electrically connected to the AC/DC circuit for storing the electrical energy output through the first tank circuit;
the switching circuit is respectively connected with the first energy storage circuit and the second energy storage circuit;
the driving circuit is connected with the AC/DC circuit and is used for driving the AC/DC circuit; and
and the controller is respectively connected with the switch circuit and the driving circuit, and controls the working states of the switch circuit and the driving circuit according to the output voltage type of the voltage provided by the active load to the external load, so that the active load provides power to the external load.
In some embodiments, the AC/DC circuit is a full-bridge inverter circuit, the full-bridge inverter circuit includes a plurality of switching tubes, the full-bridge inverter circuit is connected in series between the first energy storage circuit and the active load, wherein a controller controls corresponding switching tubes in the full-bridge inverter circuit to alternately operate in an on state or an off state, so as to change a voltage state provided by the active load.
In some embodiments, the power provided by the active load is a dc power source.
In some embodiments, the AC to DC output control circuit further comprises a sampling circuit coupled in series between the AC/DC circuit and the controller connection.
In some embodiments, the AC/DC circuit includes a first MOS switch tube, a second MOS switch tube, a third MOS switch tube, and a fourth MOS switch tube, the control terminals of all the MOS switch tubes are connected to the driving circuit, the source of the first MOS switch tube and the source of the third MOS switch tube are connected to the positive electrode of the active load, the drain of the second MOS switch tube and the drain of the fourth MOS switch tube are connected to the negative electrode of the active load, the drain of the first MOS switch tube and the source of the second MOS switch tube are connected to one end of the first energy storage circuit, and the drain of the third MOS switch tube and the source of the fourth MOS switch tube are connected to one end of the second energy storage circuit.
In some embodiments, the first tank circuit includes an inductor having one end connected to the AC/DC circuit and another end connected to the switching circuit and the external load, respectively.
In some embodiments, the second tank circuit comprises a first capacitor having an anode connected to the switching circuit and a cathode connected to the AC/DC circuit.
In some embodiments, the ac/dc output control circuit further includes a bus capacitor connected in parallel with the active load.
In some embodiments, the driving circuit includes an H-bridge driving circuit respectively connected to the AC/DC circuit and the controller for driving the AC/DC circuit.
In a second aspect, an embodiment of the present invention provides an on-board device, including a compatible ac/dc output control circuit as described above.
The utility model discloses in each embodiment, compatible alternating current-direct current output control circuit is including the active load who concatenates in proper order, the AC/DC circuit, first tank circuit, still include the second tank circuit, switch circuit, drive circuit and controller, the second tank circuit is connected with AC/DC circuit electricity, switch circuit is connected with first tank circuit and second tank circuit respectively, drive circuit and AC/DC circuit connection, the controller respectively with switch circuit, drive circuit and external load are connected, the controller provides the output voltage type of voltage for external load according to active load, control switch circuit and drive circuit's operating condition, so that active load provides the power to external load. Therefore, the alternating current and direct current output control circuit can provide corresponding voltage signals to an external load according to the type of the output voltage, and the purpose of being compatible with alternating current and direct current output is achieved.
Drawings
One or more embodiments are illustrated by way of example in the accompanying drawings, which correspond to the figures in which like reference numerals refer to similar elements and which are not to scale unless otherwise specified.
Fig. 1 is a schematic diagram of a block diagram of a compatible ac/dc output control circuit according to an embodiment of the present invention;
fig. 2 is a schematic diagram of a block diagram of a compatible ac/dc output control circuit according to another embodiment of the present invention;
fig. 3 is a schematic structural diagram of a compatible ac/dc output control circuit according to an embodiment of the present invention;
fig. 4-7 are schematic diagrams illustrating a current trend of an AC/DC circuit based on a compatible AC/DC output control circuit in an AC discharge cycle according to an embodiment of the present invention;
fig. 8-9 are schematic diagrams illustrating a current trend of an AC/DC circuit based on a compatible AC/DC output control circuit in a DC discharge period according to an embodiment of the present invention;
fig. 10-11 are schematic diagrams illustrating the current trend of an AC/DC circuit based on a compatible AC/DC output control circuit in a DC discharge period according to another embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.
Referring to fig. 1, fig. 1 is a schematic structural diagram of a compatible ac/dc output control circuit, which is applied to a vehicle-mounted system according to an embodiment of the present invention. As shown in fig. 1, the compatible AC/DC output control circuit 100 includes a first energy storage circuit 10, an AC/DC circuit 20, and an active load 30 capable of providing power, in which the first energy storage circuit 10 is used to store electric energy output by the AC/DC circuit 20, the AC/DC circuit 20 is used to convert voltage states, the voltage states include a DC voltage state or an AC voltage state, the compatible AC/DC output control circuit 100 further includes a second energy storage circuit 50, a switch circuit 40, a driving circuit 60, and a controller 70, the second energy storage circuit 50 is electrically connected to the AC/DC circuit 20 and is used to store electric energy output by the first energy storage circuit 10, the switch circuit 40 is respectively connected to the first energy storage circuit 10 and the second energy storage circuit 50 and is used to control the connection relationship between the first energy storage circuit 10 and the second energy storage circuit 50, when the switch circuit 40 is closed, first tank circuit 10 is connected to second tank circuit 50, and when switching circuit 40 is disconnected, first tank circuit 10 and second tank circuit 50 are disconnected, and drive circuit 60 is connected to AC/DC circuit 20 for driving AC/DC circuit 20, and controller 70 is connected to switching circuit 40 and drive circuit 60, respectively.
When it is necessary to charge the external load 200, the controller 70 controls the operating states of the switching circuit 40 and the AC/DC circuit 20 according to the output voltage type of the voltage supplied from the active load 30 to the external load 200, so that the active load 30 supplies power to the external load 200.
The output voltage types include both a direct current voltage and an alternating current voltage, and the controller 70 controls the operating states of the switching circuit 40 and the AC/DC circuit 20 according to the demand of the external load 200 such that the active load 30 supplies the direct current voltage or the alternating current voltage to the external load 200. Therefore, the compatible ac/dc output control circuit 100 can be compatible with ac/dc output to the external load 200, and can provide the required charging current to the external load 200 without multiple energy conversions, thereby improving the energy conversion efficiency and reliability.
In some embodiments, the power supplied by the active load 30 is direct current, and may be a low-voltage battery or a power battery of the vehicle system, or a combination circuit of the power battery and the DC/DC circuit.
In some embodiments, the switching circuit 40 may be of the type contactor, relay, electronic switch, time delay switch, photoelectric switch, tact switch, proximity switch, and double-control switch. Or a switch circuit composed of switch tubes.
In some embodiments, the AC/DC circuit 20 is mainly used to invert the DC voltage into an AC voltage to meet the requirement of the external load 200, and when the external load 200 needs AC charging, the power source on the active load 30 inverts the DC voltage of the active load 30 into an AC voltage through the AC/DC circuit 20, so that the active load 30 outputs an AC signal to the external load 200.
In some embodiments, when the external load 200 requires dc charging, the first tank circuit 10, the second tank circuit 50 and the switch circuit 40 cooperate to output dc to the external load 200. First, the controller 70 controls the switch circuit 40 to be closed, so that the first energy storage circuit 10 is connected to the second energy storage circuit 50, the first energy storage circuit 10 stores the current output by the AC/DC circuit 20, so that the power supply on the active load 30 transfers the energy to the first energy storage circuit 10, and then the controller 70 controls the working state of the AC/DC circuit 20, so that the energy stored in the first energy storage circuit 10 is transferred to the second energy storage circuit 50, so that the second energy storage circuit 50 charges the external load 200 in a direct current manner.
In some embodiments, the controller 70 controls the driving circuit 60 to generate a driving signal by which the operating state of the AC/DC circuit 20 is driven, which may be a PWM signal.
Referring to fig. 2, fig. 2 is a schematic diagram of an AC/DC output control circuit according to another embodiment of the present invention, as shown in fig. 2, the AC/DC circuit 20 is a full-bridge inverter circuit, which includes a plurality of switching tubes, the full-bridge inverter circuit is connected in series between the first energy storage circuit 10 and the active load 30, wherein the controller 70 controls the corresponding switching tubes in the full-bridge inverter circuit to alternately operate in a conducting or a blocking state through the driving circuit 60 to change a voltage state provided by the active load 30. For example, when the external load 200 requires an ac signal, the controller 70 controls the corresponding switch tube in the full-bridge inverter circuit to operate in an on state or an off state, so that the dc voltage of the active load 30 is converted into an ac voltage state.
In some embodiments, the AC/DC circuit 20 includes a first MOS switch Q1, a second MOS switch Q2, a third MOS switch Q3, and a fourth MOS switch Q4, all of which have control terminals connected to the driving circuit 60, wherein a source of the first MOS switch Q1 and a source of the third MOS switch Q3 are commonly connected to the positive terminal of the active load 30, a drain of the second MOS switch Q2 and a drain of the fourth MOS switch Q4 are commonly connected to the negative terminal of the active load 30, a drain of the first MOS switch Q1 and a source of the second MOS switch Q2 are commonly connected to one end of the first energy storage circuit 10, and a drain of the third MOS switch Q3 and a source of the fourth MOS switch Q4 are commonly connected to one end of the second energy storage circuit 50.
The output voltage type of the active load 30 providing voltage for the external load 200 includes two types of direct current voltage and alternating current voltage, the active load 30 provides voltage for the external load 200 through an alternating current/direct current port, if the output voltage type is alternating current voltage, the controller 70 controls the switching circuit 40 to be in a disconnection working state, and simultaneously generates a control signal for controlling the driving circuit 60, so that the driving circuit 60 generates a driving signal, and then the control end of the MOS switching tube drives the four MOS switching tubes to be switched on or switched off, so that the direct current voltage of the active load 30 is inverted into alternating current voltage to provide alternating current voltage for the external load 200;
if the output voltage type is dc voltage, the controller 70 controls the switching circuit 40 to be turned on, so that the first energy storage circuit 10 and the second energy storage circuit 50 are connected, and simultaneously controls the four MOS switches to be turned on or off, so that the dc voltage energy of the active load 30 is converted to the first energy storage circuit 10, and then the controller 70 controls the MOS switches to be turned on or off, so that the energy on the first energy storage circuit 70 is converted to the second energy storage circuit 50, and further the second energy storage circuit 50 provides dc voltage for the external load 200.
Therefore, the alternating current and direct current output control circuit can be compatible with alternating current and direct current output in a main power loop according to the type of the output voltage of the external load, which is provided with voltage by the active load, and meanwhile, the energy conversion frequency is reduced, and the energy conversion efficiency and the reliability are improved.
Referring to fig. 3, fig. 3 is a circuit for controlling ac/dc output according to yet another embodiment of the present invention, the difference between fig. 3 and fig. 2 is that the first energy storage circuit 10 in the compatible ac/dc output control circuit 100 includes an inductor L1, one end of the inductor L1 is connected to the drain of the first MOS switch tube, the other end is connected to the switch circuit 40 and the ac/dc port, the switch circuit 40 includes a switch K1, the controller 70 can control the switch K1 to be turned on and off, the second energy storage circuit 50 includes an electrolytic capacitor C1, the anode of the electrolytic capacitor C1 is connected to the switch K1, the cathode of the electrolytic capacitor C1 is connected to the ac/dc port and the source of the fourth MOS switch tube Q4, the active load 30 is a power battery V, the anode of the first MOS switch tube Q1 and the source of the third MOS switch tube Q3 are connected together, the cathode of the second MOS switch tube Q2 is connected with the drain of the fourth MOS switch tube Q4.
In some embodiments, the compatible ac/dc output control circuit 100 further includes a bus capacitor C2 connected in parallel with the power battery V, which can effectively reduce EMI noise of the system and can reduce input current ripple.
In some embodiments, the driving circuit 60 compatible with the ac/dc output control circuit 100 includes an H-bridge driving circuit 61 and a switch driving circuit 62, wherein the H-bridge driving circuit 61 is used for driving the operating states of four MOS switch transistors, and the switch driving circuit 62 is used for driving the operating state of the switch K1.
In some embodiments, the compatible AC/DC output control circuit 100 further includes an AC/DC sampling circuit and a PFC sampling circuit, the AC/DC sampling circuit is connected in series between the external load 200 and the AC/DC circuit 20, the sampling circuit is configured to sample an AC/DC port voltage or a loop current and transmit a sampling signal to the controller 70, the controller 70 identifies a type of the external load 200 according to the voltage or current signal sampled by the AC/DC sampling circuit, and automatically selects an AC inversion mode or a DC supply or charging mode according to the type of the external load 200. When the external load 200 is a passive load, the compatible ac/dc output control circuit 100 selects to provide an ac voltage or a dc voltage according to the output voltage type to meet the requirements of different types of loads.
The PFC sampling circuit is arranged between the AC/DC circuit and the bus capacitor and is used for sampling voltage or current on the bus capacitor.
When power needs to be supplied to the external load 200, and when the external load 200 is a passive load, the controller 70 determines an output voltage type of the power battery V for supplying voltage to the external load 200, and controls the operating state of the related circuit according to the output voltage type, which may be specifically described as follows:
when the output voltage type is ac voltage, first, the controller 70 controls the switch K1 to be turned off, and simultaneously generates a control signal of the H-bridge driving circuit 61, and controls the operating states of the four MOS switches through the H-bridge driving circuit 61, so as to invert the dc voltage of the power battery V into ac voltage, specifically, in one inversion cycle, the four MOS switches have four operating states, in the first stage, the controller 70 controls the first MOS switch Q1 and the fourth MOS switch Q4 to be turned on, the second MOS switch Q2 and the third MOS switch Q3 to be turned off, so that the power battery V, the first MOS switch Q1, the inductor L1, the external load 200 and the fourth MOS switch Q4 form a closed loop, the inductor L1 is in an excited state, a positive half-cycle first current flow direction when the ac output shown in fig. 4 is formed, in the second stage, the controller 70 controls the second MOS switch Q2 and the fourth MOS switch Q4 to be turned on, controlling the first MOS switch Q1 and the third MOS switch Q3 to be turned off, so that the inductor L1, the external load 200, the fourth MOS switch Q3 form a closed loop, the inductor L1 is in a demagnetized state, and a positive half-cycle second current flow direction is formed when the alternating current output is performed as shown in fig. 5, in a third stage, the controller 70 controls the second MOS switch Q2 and the third MOS switch Q3 to be turned on, the first MOS switch Q1 and the fourth MOS switch Q4 are turned off, so that the power battery V, the third MOS switch Q3, the external load 200, the inductor L1 and the second MOS switch Q2 form a closed loop, the inductor L1 is in an excited state, and a negative half-cycle first current flow direction is formed when the alternating current output is performed as shown in fig. 6, in a fourth stage, the controller 70 controls the second MOS switch Q2 and the fourth MOS switch Q4 to be turned on, and the first MOS switch Q1 and the third MOS switch Q3 are turned off, the inductor L1, the second MOS switch Q2, the fourth MOS switch Q4 and the external load 200 are made to form a closed loop, the inductor L1 is in a demagnetized state, and the second current flow of the negative half period is formed when the alternating current output is generated as shown in fig. 7.
Therefore, the alternating current and direct current output control circuit inverts the direct current voltage of the power battery V into alternating current voltage and outputs the alternating current voltage to an external load, and the load characteristic is met.
When the output voltage type is a direct-current voltage, the controller 70 controls the switch K1 to be closed, so that the inductor L1 and the electrolytic capacitor C1 are connected, and the controller 70 can adopt a single polarity to control four MOS switch tubes, so that better EMI can be obtained. Firstly, the controller 70 controls the first MOS switch Q1 and the fourth MOS switch Q4 to be turned on, the second MOS switch Q2 and the third MOS switch Q3 to be turned off, so that the power battery V, the first MOS switch tube Q1, the inductor L1, the electrolytic capacitor C1 and the fourth MOS switch tube Q4 form a closed loop, the inductor L1 is in an excitation state, so that the energy in the power battery V is stored in the inductor L1, and the first current flow direction is formed when the unipolar modulated dc output is formed as shown in fig. 8, and finally the controller 70 controls the second MOS switch Q2 and the fourth MOS switch Q4 to be turned on, the first MOS switch Q1 and the third MOS switch Q3 to be turned off, so that the inductor L1, the electrolytic capacitor C1, the fourth MOS switch tube Q4 and the second MOS switch tube Q2 form a closed loop, the inductor L1 is in a demagnetized state, so that the energy stored in the inductor L1 is transferred to the electrolytic capacitor C1 to form the second current flow direction for unipolar modulated dc output as shown in fig. 9.
In some embodiments, when the output voltage is a dc voltage, the controller 70 may also adopt a bipolar control for four MOS switch transistors, which is beneficial to reduce the common mode leakage current. Firstly, the controller 70 controls the first MOS switch Q1 and the fourth MOS switch Q4 to be turned on, the second MOS switch Q2 and the third MOS switch Q3 to be turned off, so that the power battery V, the first MOS switch tube Q1, the inductor L1, the electrolytic capacitor C1 and the fourth MOS switch tube Q4 form a closed loop, the inductor L1 is in an excitation state, so that the energy in the power battery V is stored in the inductor L1, and the first current flow direction is formed when the bipolar modulation dc output is formed as shown in fig. 10, and finally the controller 70 controls the second MOS switch Q2 and the third MOS switch Q3 to be turned on, the first MOS switch Q1 and the fourth MOS switch Q4 to be turned off, so that the inductor L1, the electrolytic capacitor C1, the third MOS switch tube Q3, the power battery V and the second MOS switch tube Q2 form a closed loop, the inductor L1 is in a demagnetized state, so that the energy stored in the inductor L1 is converted into the electrolytic capacitor C1, and the second current flow direction is formed when the bipolar modulation direct current output is formed as shown in fig. 11.
Therefore, the compatible ac/dc output control circuit 100 can be compatible with ac/dc output in the main power circuit according to the type of the output voltage, and the number of energy conversion times is small, and especially when providing a dc voltage to an external load, unnecessary ac exchange links can be reduced, and the energy conversion efficiency and reliability can be improved.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; within the idea of the invention, also technical features in the above embodiments or in different embodiments can be combined, steps can be implemented in any order, and there are many other variations of the different aspects of the invention as described above, which are not provided in detail for the sake of brevity; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present application.
Claims (10)
1. The utility model provides a compatible alternating current-direct current output control circuit, is applied to on-vehicle system, its characterized in that, alternating current-direct current output control circuit is used for charging external load, alternating current-direct current output control circuit is including the first tank circuit, the AC/DC circuit that concatenate in proper order and can provide the active load of power, first tank circuit is used for storing the warp the electric energy of AC/DC circuit output, AC/DC circuit is used for the switching voltage state, and voltage state includes direct current voltage state or alternating current voltage state, alternating current-direct current output control circuit still includes:
a second tank circuit electrically connected to the AC/DC circuit for storing the electrical energy output through the first tank circuit;
the switching circuit is respectively connected with the first energy storage circuit and the second energy storage circuit;
the driving circuit is connected with the AC/DC circuit and is used for driving the AC/DC circuit; and
and the controller is respectively connected with the switch circuit and the driving circuit, and controls the working states of the switch circuit and the driving circuit according to the output voltage type of the voltage provided by the active load to the external load, so that the active load provides power to the external load.
2. The AC/DC output control circuit as claimed in claim 1, wherein the AC/DC circuit is a full bridge inverter circuit, the full bridge inverter circuit comprises a plurality of switching tubes, the full bridge inverter circuit is connected in series between the first energy storage circuit and the active load, and the controller controls the corresponding switching tubes in the full bridge inverter circuit to alternately operate in an on state or an off state to change the voltage state provided by the active load.
3. The compatible ac/dc output control circuit of claim 2, wherein the power provided by the active load is a dc power source.
4. The compatible AC/DC output control circuit of claim 3, further comprising a sampling circuit coupled in series between the AC/DC circuit and the controller connection.
5. The AC/DC output control circuit according to claim 4, wherein the AC/DC circuit comprises a first MOS switch tube, a second MOS switch tube, a third MOS switch tube and a fourth MOS switch tube, the control ends of all the MOS switch tubes are connected to the driving circuit, the source of the first MOS switch tube and the source of the third MOS switch tube are connected to the positive pole of the active load, the drain of the second MOS switch tube and the drain of the fourth MOS switch tube are connected to the negative pole of the active load, the drain of the first MOS switch tube and the source of the second MOS switch tube are connected to one end of the first energy storage circuit, and the drain of the third MOS switch tube and the source of the fourth MOS switch tube are connected to one end of the second energy storage circuit.
6. The compatible AC/DC output control circuit of claim 5, wherein the first tank circuit includes an inductor, one end of the inductor is connected to the AC/DC circuit, and the other end of the inductor is connected to the switching circuit and the external load, respectively.
7. The compatible AC/DC output control circuit of claim 6, wherein the second tank circuit comprises a first capacitor, an anode of the first capacitor is connected to the switching circuit, and a cathode of the first capacitor is connected to the AC/DC circuit.
8. The compatible ac/dc output control circuit of claim 1, further comprising a bus capacitor connected in parallel with the active load.
9. The compatible AC-DC output control circuit of any one of claims 1-8, wherein the driving circuit comprises an H-bridge driving circuit, the H-bridge driving circuit being connected to the AC/DC circuit and the controller, respectively, for driving the AC/DC circuit.
10. An in-vehicle apparatus characterized by comprising the ac/dc output control circuit according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201922116242.8U CN211296551U (en) | 2019-11-27 | 2019-11-27 | Compatible alternating current-direct current output control circuit and vehicle-mounted equipment |
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| CN201922116242.8U CN211296551U (en) | 2019-11-27 | 2019-11-27 | Compatible alternating current-direct current output control circuit and vehicle-mounted equipment |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113162379A (en) * | 2021-05-08 | 2021-07-23 | 长沙威克电力技术科技有限公司 | Alternating current and direct current integrated power supply |
| CN114301092A (en) * | 2021-12-24 | 2022-04-08 | 深圳市羲和未来科技有限公司 | Modular optical storage charging detection intelligent system |
-
2019
- 2019-11-27 CN CN201922116242.8U patent/CN211296551U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113162379A (en) * | 2021-05-08 | 2021-07-23 | 长沙威克电力技术科技有限公司 | Alternating current and direct current integrated power supply |
| CN114301092A (en) * | 2021-12-24 | 2022-04-08 | 深圳市羲和未来科技有限公司 | Modular optical storage charging detection intelligent system |
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Address after: 518000 building 401, building 4, Antongda industrial plant, zone 68, Xingdong community, Xin'an street, Bao'an District, Shenzhen City, Guangdong Province Patentee after: Shenzhen Shouhang new energy Co.,Ltd. Address before: 518000 building 401, building 4, Antongda industrial plant, zone 68, Xingdong community, Xin'an street, Bao'an District, Shenzhen City, Guangdong Province Patentee before: SHENZHEN SOFARSOLAR Co.,Ltd. |