Controllable Circuit and Device Incorporating the Controllable Circuit

Abstract

The present invention discloses a controllable circuit and a device including the controllable circuit. The controllable circuit includes: a first circuit line and a second circuit line connecting a positive electrode circuit and a negative electrode circuit; a first selection switch, one side of the first selection switch is connected to a third switch, a first path on the other side of the first selection switch is connected to a first sub-circuit of the positive electrode circuit, and a second path on the other side of the first selection switch is connected to a second sub-circuit of the positive electrode circuit; a second selection switch, one side of the second selection switch is connected to the circuit line between a first switch and a second switch on the first circuit line, a first path on the other side of the second selection switch is connected to one side of an AC load or an AC power supply, and each of the other paths on the other side of the second selection switch is connected to an inductor, and the inductor is connected to the circuit line between a third switch and a fourth switch on the second circuit line. The present invention solves the technical problems of complex circuit and bloated structure for integrating the three functions of rectification, inversion, and DC power conversion.

Description

Technical Field

[0001] The present invention relates to the field of electronic circuits, and in particular, to a controllable circuit and a device including the controllable circuit. Background Art

[0002] In the prior art, the three functions of rectification, inversion, and direct current conversion (DC-DC converter, DC-DC) are widely used in various scenarios. However, in the prior art, each of the three functions is implemented by one circuit. If the three functions are to be integrated, the circuit is complex and the structure is bloated. Summary of the Invention

[0003] Embodiments of the present invention provide a controllable circuit and a device including the controllable circuit, so as to at least solve the technical problems of complex circuit and bloated structure in integrating the three functions of rectification, inversion, and direct current conversion.

[0004] According to one aspect of the embodiments of the present invention, a controllable circuit is provided, including: a first circuit line connecting a positive electrode circuit and a negative electrode circuit, and a second circuit line connecting the positive electrode circuit and the negative electrode circuit, wherein a first switch and a second switch are connected in series on the first circuit line, and a third switch and a fourth switch are connected in series on the second circuit line; a first selection switch, wherein the first selection switch is located at the connection of the second circuit line and the positive electrode circuit, one side of the first selection switch is connected to the third switch, a first path on the other side of the first selection switch is connected to a first sub-circuit of the positive electrode circuit, a second path on the other side of the first selection switch is connected to a second sub-circuit of the positive electrode circuit, and the first sub-circuit and the second sub-circuit are disconnected from each other; a second selection switch, wherein one side of the second selection switch is connected to the circuit line between the first switch and the second switch on the first circuit line, a first path on the other side of the second selection switch is connected to one side of an AC load or an AC power supply, each of the other paths on the other side of the second selection switch is connected to an inductor, the inductor is connected to the circuit line between the third switch and the fourth switch on the second circuit line, and the other side of the AC load or the AC power supply is connected to the circuit line between the third switch and the fourth switch on the second circuit line.

[0005] According to another aspect of the embodiments of the present invention, a device including a controllable circuit is provided, comprising: a first circuit line connecting a positive electrode circuit and a negative electrode circuit, and a second circuit line connecting the positive electrode circuit and the negative electrode circuit, wherein a first switch and a second switch are connected in series on the first circuit line, and a third switch and a fourth switch are connected in series on the second circuit line; a first selection switch, wherein the first selection switch is located at the connection of the second circuit line and the positive electrode circuit, one side of the first selection switch is connected to the third switch, a first path on the other side of the first selection switch is connected to a first sub-circuit of the positive electrode circuit, a second path on the other side of the first selection switch is connected to a second sub-circuit of the positive electrode circuit, and the first sub-circuit and the second sub-circuit are disconnected from each other; a second selection switch, wherein one side of the second selection switch is connected to the circuit line between the first switch and the second switch on the first circuit line, a first path on the other side of the second selection switch is connected to one side of an AC load or an AC power supply, each of the other paths on the other side of the second selection switch is connected to an inductor, the inductor is connected to the circuit line between the third switch and the fourth switch on the second circuit line, and the other side of the AC load or the AC power supply is connected to the circuit line between the third switch and the fourth switch on the second circuit line.

[0006] As an optional example, the first switch, the second switch, the third switch and the fourth switch are in a closed state; the first path of the first selection switch is in a closed state, and the second path of the first selection switch is in an open state; the first path of the second selection switch is in a closed state, and each of the other paths of the second selection switch is in an open state.

[0007] As an optional example, when one side of the device is DC power and the other side is AC power, when electric energy travels from the DC power side through the device to the AC power side, the controllable circuit in the device is in a single-phase inverter state; when the electric energy travels from the AC power side to the DC power side, the controllable circuit in the device is in a single-phase full-controlled bridge rectifier state.

[0008] As an optional example, the first path of the first selection switch is in an open state, and the second path of the first selection switch is in a closed state; the first path of the second selection switch is in an open state, and at least one of the other paths of the second selection switch is in a closed state.

[0009] As an alternative example, the above-mentioned device further includes: a first adjustment module, configured to place the above-mentioned first switch and the above-mentioned fourth switch in a closed state, and place the above-mentioned second switch and the above-mentioned third switch in an open state; after charging the above-mentioned inductor, adjust the above-mentioned third switch to a closed state and the above-mentioned fourth switch to an open state.

[0010] As an alternative example, the above-mentioned device further includes: a second adjustment module, configured to place the above-mentioned second switch and the above-mentioned third switch in a closed state, and place the above-mentioned first switch and the above-mentioned fourth switch in an open state; after charging the above-mentioned inductor, adjust the above-mentioned first switch to a closed state and the above-mentioned second switch to an open state.

[0011] As an alternative example, the above-mentioned device further includes: a third adjustment module, configured to place the above-mentioned first switch and the above-mentioned third switch in a closed state, and place the above-mentioned second switch and the above-mentioned fourth switch in an open state, and supply power to the output terminal by the above-mentioned inductor; adjust the above-mentioned second switch to a closed state and the above-mentioned first switch to an open state to charge the above-mentioned inductor.

[0012] As an alternative example, the above-mentioned device further includes: a fourth adjustment module, configured to place the above-mentioned first switch and the above-mentioned third switch in a closed state, and place the above-mentioned second switch and the above-mentioned fourth switch in an open state, and supply power to the output terminal by the above-mentioned inductor; adjust the above-mentioned fourth switch to a closed state and the above-mentioned third switch to an open state to charge the above-mentioned inductor.

[0013] As an alternative example, the other path of the above-mentioned second selection switch includes three wires.

[0014] According to another aspect of the embodiments of the present invention, there is also provided a storage medium, in which a computer program is stored, and wherein, when the computer program is run by a processor, it executes the functions of the above-mentioned controllable circuit.

[0015] According to another aspect of the embodiments of the present invention, there is also provided an electronic device, including a memory and a processor, a computer program is stored in the above-mentioned memory, and the above-mentioned processor is configured to execute the functions of the above-mentioned controllable circuit through the above-mentioned computer program.

[0016] In an embodiment of the present invention, a controllable circuit is provided. The controllable circuit includes: a first circuit line connecting a positive circuit and a negative circuit, and a second circuit line connecting the positive circuit and the negative circuit. Among them, a first switch and a second switch are connected in series on the first circuit line, and a third switch and a fourth switch are connected in series on the second circuit line; a first selection switch, where the first selection switch is located at the connection between the second circuit line and the positive circuit. One side of the first selection switch is connected to the third switch, and the first path on the other side of the first selection switch is connected to a first sub-circuit of the positive circuit, and the second path on the other side of the first selection switch is connected to a second sub-circuit of the positive circuit, and the first sub-circuit and the second sub-circuit are disconnected from each other; a second selection switch, where one side of the second selection switch is connected to the circuit line between the first switch and the second switch on the first circuit line, the first path on the other side of the second selection switch is connected to one side of an AC load or an AC power supply, and each of the other paths on the other side of the second selection switch is connected to an inductor, and the inductor is connected to the circuit line between the third switch and the fourth switch on the second circuit line, and the other side of the AC load or the AC power supply is connected to the circuit line between the third switch and the fourth switch on the second circuit line. Since the circuit structure of the controllable circuit is simple, by controlling the first switch to the fourth switch and the first selection switch and the second selection switch, the functions of rectification, inversion, and DC power conversion can be realized, thereby solving the technical problems of complex circuit and bloated structure for integrating the three functions of rectification, inversion, and DC power conversion. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings described herein are used to provide a further understanding of the present invention, and constitute a part of this application. The schematic embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0018] Figure 1 is a structural diagram of an optional controllable circuit according to an embodiment of the present invention;

[0019] Figure 2 is a DC-DC mode diagram of an optional controllable circuit according to an embodiment of the present invention;

[0020] Figure 3 a is a step-up diagram of the DC-DC mode of an optional controllable circuit according to an embodiment of the present invention;

[0021] Figure 3 b is a step-up diagram of the DC-DC mode of an optional controllable circuit according to an embodiment of the present invention;

[0022] Figure 4a is a step-down diagram of the DC-DC mode of an optional controllable circuit according to an embodiment of the present invention;

[0023] Figure 4 b is a step-down diagram of the DC-DC mode of an optional controllable circuit according to an embodiment of the present invention;

[0024] Figure 5 is a rectification and inversion mode diagram of an optional controllable circuit according to an embodiment of the present invention;

[0025] Figure 6 is a schematic structural diagram of an optional device including a controllable circuit according to an embodiment of the present invention;

[0026] Figure 7 is a schematic diagram of an optional electronic device according to an embodiment of the present invention. Detailed implementation manners

[0027] In order to enable those skilled in the art to better understand the solution of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0028] It should be noted that the terms "first", "second", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and do not have to be used to describe a specific order or sequence. It should be understood that such data can be interchanged under appropriate circumstances so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device including a series of steps or units does not necessarily have to be limited to those steps or units clearly listed, but may include other steps or units not clearly listed or inherent to these processes, methods, products or devices.

[0029] According to the first aspect of the embodiments of the present invention, a controllable circuit is provided. Optionally, as Figure 1 shown, the above-mentioned controllable circuit includes:

[0030] a first circuit line connecting the positive electrode circuit and the negative electrode circuit and a second circuit line connecting the above-mentioned positive electrode circuit and the above-mentioned negative electrode circuit, wherein a first switch and a second switch are connected in series on the above-mentioned first circuit line, and a third switch and a fourth switch are connected in series on the above-mentioned second circuit line;

[0031] The first gating switch, wherein the first gating switch is located at the connection between the second circuit line and the positive electrode circuit. One side of the first gating switch is connected to the third switch. The first path on the other side of the first gating switch is connected to the first sub-circuit of the positive electrode circuit, and the second path on the other side of the first gating switch is connected to the second sub-circuit of the positive electrode circuit. The first sub-circuit and the second sub-circuit are disconnected from each other.

[0032] The second gating switch, wherein one side of the second gating switch is connected to the circuit line between the first switch and the second switch on the first circuit line. The first path on the other side of the second gating switch is connected to one side of the AC load or the AC power supply. Each of the other paths on the other side of the second gating switch is connected to an inductor, and the inductor is connected to the circuit line between the third switch and the fourth switch on the second circuit line. The other side of the AC load or the AC power supply is connected to the circuit line between the third switch and the fourth switch on the second circuit line.

[0033] Figure 1 In the figure, S1, S2, S3, and S4 are power switch devices, L1, L2, and L3 are inductors, and K1 and K2 are gating switch devices. K1 can gate 1 or 2, and K2 can gate 1 or at least one of 2, 3, and 4. Figure 1 The left and right in this description do not limit the direction of the present application, but are used to illustrate that in this controllable circuit, the current can flow from one end to the other end (from left to right) or from the other end to one end (from right to left).

[0034] Figure 1 For example only, in this embodiment, for the second gating switch, there can be multiple paths, not limited to Figure 1 the four paths in the figure. If there are multiple paths for the second gating switch, then except for the first path, each of the remaining paths includes an inductor.

[0035] By controlling S1, S2, S3, S4, K1, and K2, the controllable circuit can achieve different modes.

[0036] DC-DC mode: In this mode, the controllable circuit can achieve bidirectional step-up and step-down conversion from DC to DC, that is, it can achieve step-up and step-down in a single direction.

[0037] As Figure 2 shown, Figure 2 in the figure, K1 gates 2, and K2 gates at least one of 2, 3, and 4. L is the composite inductor in the DC-DC mode. Taking the transmission of electrical energy from left to right as an example, the step-up and step-down working states of the DC-DC circuit are described respectively.

[0038] Boost mode: When switches S1 and S4 are turned on and S2 and S3 are turned off, the DC power supply VDC charges the inductor L, as shown in Figure 3 Figure a; then switch S4 is turned off and S3 is turned on. At this time, the left DC voltage VDC and the inductor energy storage jointly supply power to the right load, achieving the boost effect. The state at this time is as shown in Figure 3 Figure b. By controlling the alternating conduction of S3 and S4, boost can be achieved. The output voltage VO = VDC / (1 - D), where D is the duty cycle.

[0039] Buck mode: When switches S1 and S3 are turned on and S2 and S4 are turned off, the DC power supply VDC supplies power to the output terminal through the inductor, and the output voltage VO = VDC, as shown in Figure 4 Figure a; when S1 is turned off and S2 is turned on, the DC power supply no longer supplies power to the output terminal, and the inductor energy storage is used for freewheeling, as shown in Figure 4 Figure b. By controlling the alternating conduction of S1 and S2, the buck effect can be achieved. The output voltage Vo = VDC * D, where D is the duty cycle.

[0040] If the electric energy is from right to left, then Figure 3 a is the buck mode, Figure 3 b is the boost mode.

[0041] Rectification / inversion mode: When both switches K1 and K2 are selected to be 1, the circuit is in the rectification / inversion mode. Assuming that the left side is DC and the right side is AC, as shown in Figure 5 Figure. When the electric energy is transmitted from left to right, the circuit works in the single-phase inversion state. When the electric energy is transmitted from right to left, the circuit works in the single-phase full-bridge controlled rectification state.

[0042] For the above controllable circuit, by controlling the gating switches K1 and K2 according to different application scenarios, the switching between the DC-DC mode, the inversion mode, and the rectification mode can be achieved. At the same time, the circuit can achieve bidirectional power transmission in any mode. In addition, when the circuit works in the DC-DC mode, multiple gating can be achieved by controlling switch K2, so as to realize the parallel connection of inductors and further broaden the working power range.

[0043] The above controllable circuit is symmetrical left and right, and has the same circuit structure when the electric energy is transmitted from left to right and from right to left. Taking the transmission of electric energy from left to right as an example, the working process of the circuit is described below.

[0044] First, the control chip determines the working mode and then outputs the corresponding gating signal. The working modes corresponding to different switch states are shown in Table 1 below. If working in the DC-DC mode, according to the system capacity, determine whether switch K2 is single-channel conduction or multi-channel conduction at the same time, and then match the appropriate inductance and current-carrying value.

[0045] Table 1

[0046]

[0047] In this embodiment, through the above controllable circuit, by controlling the first switch to the fourth switch, the first gating switch, and the second gating switch, the functions of rectification, inversion, and DC power conversion can be achieved. Moreover, the circuit structure of the above controllable circuit is simple. Therefore, this method solves the technical problems of complex circuit and bloated structure in integrating the three functions of rectification, inversion, and DC power conversion.

[0048] As an optional example, the above controllable circuit further includes:

[0049] Put the above first switch, the above second switch, the above third switch, and the above fourth switch in the closed state;

[0050] Put the first path of the above first gating switch in the closed state and put the second path of the above first gating switch in the open state;

[0051] Put the first path of the above second gating switch in the closed state and put each of the other paths of the above second gating switch in the open state.

[0052] Optionally, in this embodiment, by controlling the first switch, the above second switch, the above third switch, the above fourth switch, the first gating switch, and the second gating switch, closing the first switch, the above second switch, the above third switch, and the above fourth switch, and selecting the first path for the first gating switch and the second gating switch, the control circuit can be adjusted to the rectifier-inverter mode.

[0053] As an optional example, the above controllable circuit further includes:

[0054] When direct current is on one side of the above controllable circuit and alternating current is on the other side, when electric energy passes from the direct current side through the above controllable circuit to the alternating current side, the above controllable circuit is in the single-phase inverter state;

[0055] When the above electric energy passes from the alternating current side to the direct current side, the above controllable circuit is in the single-phase full-bridge controlled rectification state.

[0056] In the rectifier-inverter mode, from one side of the controllable circuit to the other side is rectification, and from the other side to one side is inversion.

[0057] As an optional example, the above controllable circuit further includes:

[0058] Put the first path of the above first gating switch in the open state and put the second path of the above first gating switch in the closed state;

[0059] Turn the first path of the above second selection switch to the off state and turn at least one of the other paths of the above second selection switch to the on state.

[0060] Optionally, in this embodiment, by turning the first selection switch to the second path and turning the second selection switch to at least one path other than the first path, the controllable circuit can be placed in the DC-DC mode.

[0061] As an optional example, the above controllable circuit further includes:

[0062] Turn the above first switch and the above fourth switch to the on state and turn the above second switch and the above third switch to the off state;

[0063] After charging the above inductor, adjust the above third switch to the on state and adjust the above fourth switch to the off state.

[0064] As an optional example, the above controllable circuit further includes:

[0065] Turn the above second switch and the above third switch to the on state and turn the above first switch and the above fourth switch to the off state;

[0066] After charging the above inductor, adjust the above first switch to the on state and adjust the above second switch to the off state.

[0067] In the DC-DC mode, the electric energy of the controllable circuit can be stepped up either from left to right or from right to left. When the electric energy is from left to right, turn the above first switch and the above fourth switch to the on state and turn the above second switch and the above third switch to the off state; after charging the above inductor, adjust the above third switch to the on state and adjust the above fourth switch to the off state to step up the voltage. When the electric energy is from right to left, turn the above second switch and the above third switch to the on state and turn the above first switch and the above fourth switch to the off state; after charging the above inductor, adjust the above first switch to the on state and adjust the above second switch to the off state to complete the voltage boost.

[0068] As an optional example, the above controllable circuit further includes:

[0069] Turn the above first switch and the above third switch to the on state and turn the above second switch and the above fourth switch to the off state, and supply power to the output terminal by the above inductor;

[0070] Adjust the above second switch to the on state and adjust the above first switch to the off state to charge the above inductor.

[0071] As an optional example, the above controllable circuit further includes:

[0072] Place the above-mentioned first switch and the above-mentioned third switch in the closed state, place the above-mentioned second switch and the above-mentioned fourth switch in the open state, and supply power to the output terminal by the above-mentioned inductor;

[0073] Adjust the above-mentioned fourth switch to the closed state, adjust the above-mentioned third switch to the open state, and charge the above-mentioned inductor.

[0074] In the DC-DC mode, the electric energy of the controllable circuit can achieve step-down whether from left to right or from right to left. When the electric energy is from left to right, place the above-mentioned first switch and the above-mentioned third switch in the closed state, place the above-mentioned second switch and the above-mentioned fourth switch in the open state, and supply power to the output terminal by the above-mentioned inductor; adjust the above-mentioned second switch to the closed state, adjust the above-mentioned first switch to the open state, and charge the above-mentioned inductor, so as to achieve step-down. When the electric energy is from right to left, place the above-mentioned first switch and the above-mentioned third switch in the closed state, place the above-mentioned second switch and the above-mentioned fourth switch in the open state, and supply power to the output terminal by the above-mentioned inductor; adjust the above-mentioned fourth switch to the closed state, adjust the above-mentioned third switch to the open state, and charge the above-mentioned inductor, so as to achieve step-down.

[0075] As an optional example, the other paths of the above-mentioned second gating switch include 3 wires.

[0076] The second gating switch in this embodiment can have multiple paths. Except for the first path, each of the other paths includes an inductor. Specifically, the second gating switch can be four paths.

[0077] It should be noted that for the foregoing method embodiments, for the sake of simple description, they are all expressed as a series of action combinations. However, those skilled in the art should know that the present invention is not limited by the described action sequence, because according to the present invention, certain steps can be performed in other sequences or simultaneously. Secondly, those skilled in the art should also know that the embodiments described in the specification are all preferred embodiments, and the actions and modules involved are not necessarily essential to the present invention.

[0078] According to another aspect of the embodiments of the present application, there is also provided a device including a controllable circuit, as Figure 6 shown, including: a controllable circuit 602. The controllable circuit 602 includes:

[0079] A first circuit line 602 connecting the positive electrode circuit and the negative electrode circuit and a second circuit line connecting the above-mentioned positive electrode circuit and the above-mentioned negative electrode circuit. Wherein, a first switch and a second switch are connected in series on the above-mentioned first circuit line, and a third switch and a fourth switch are connected in series on the above-mentioned second circuit line;

[0080] The first gating switch, wherein the first gating switch is located at the connection between the second circuit line and the positive electrode circuit. One side of the first gating switch is connected to the third switch. The first path on the other side of the first gating switch is connected to the first sub-circuit of the positive electrode circuit, and the second path on the other side of the first gating switch is connected to the second sub-circuit of the positive electrode circuit. The first sub-circuit and the second sub-circuit are disconnected from each other.

[0081] The second gating switch, wherein one side of the second gating switch is connected to the circuit line between the first switch and the second switch on the first circuit line. The first path on the other side of the second gating switch is connected to one side of the AC load or the AC power supply. Each of the other paths on the other side of the second gating switch is connected to an inductor, and the inductor is connected to the circuit line between the third switch and the fourth switch on the second circuit line. The other side of the AC load or the AC power supply is connected to the circuit line between the third switch and the fourth switch on the second circuit line.

[0082] The controllable circuit in the device is as Figure 1 shown. Figure 1 In the figure, S1, S2, S3, and S4 are power switch devices, L1, L2, and L3 are inductors, and K1 and K2 are gating switch devices. K1 can gate 1 or 2, and K2 can gate 1 or at least one of 2, 3, and 4. Figure 1 The left and right in the figure do not limit the direction of this application, but are used to illustrate that the current in this controllable circuit can flow from one end to the other end (from left to right) or from the other end to one end (from right to left).

[0083] Figure 1 For example only, in this embodiment, for the second gating switch, there can be multiple paths, not limited to the Figure 1 four paths in the figure. If there are multiple paths for the second gating switch, then except for the first path, each of the remaining paths includes an inductor.

[0084] By controlling S1, S2, S3, S4, K1, and K2, the controllable circuit can achieve different modes.

[0085] DC-DC mode: In this mode, the controllable circuit can achieve bidirectional step-up and step-down conversion from DC to DC, that is, it can achieve step-up and step-down in a single direction.

[0086] As Figure 2 shown, Figure 2 in the figure, K1 gates 2, and K2 gates at least one of 2, 3, and 4. L is the composite inductor in the DC-DC mode. Taking the transmission of electric energy from left to right as an example, the step-up and step-down working states of the DC-DC circuit are elaborated respectively.

[0087] Boost mode: When switches S1 and S4 are turned on and S2 and S3 are turned off, the DC power supply VDC charges the inductor L, as shown in Figure 3 Figure a; then switch S4 is turned off and S3 is turned on. At this time, the left DC voltage VDC and the inductor energy storage jointly supply power to the right load, achieving the effect of boosting. The state at this time is as shown in Figure 3 Figure b. By controlling the alternating conduction of S3 and S4, boosting can be achieved. The output voltage VO = VDC / (1 - D), where D is the duty cycle.

[0088] Buck mode: When switches S1 and S3 are turned on and S2 and S4 are turned off, the DC power supply VDC supplies power to the output through the inductor, and the output voltage VO = VDC, as shown in Figure 4 Figure a; when S1 is turned off and S2 is turned on, the DC power supply no longer supplies power to the output, and the inductor energy storage is used for freewheeling, as shown in Figure 4 Figure b. By controlling the alternating conduction of S1 and S2, the buck effect can be achieved. The output voltage Vo = VDC * D, where D is the duty cycle.

[0089] If the electric energy is from right to left, then Figure 3 a is the buck mode, Figure 3 b is the boost mode.

[0090] Rectification / inversion mode: When both switches K1 and K2 are selected to be 1, the circuit is in the rectification / inversion mode. Assuming that the left side is DC and the right side is AC, as shown in Figure 5 Figure. When the electric energy is transmitted from left to right, the circuit works in the single-phase inversion state. When the electric energy is transmitted from right to left, the circuit works in the single-phase full-bridge controlled rectification state.

[0091] For the above controllable circuit, by controlling the gating switches K1 and K2 according to different application scenarios, the switching between the DC-DC mode, the inversion mode, and the rectification mode can be achieved. At the same time, the circuit can achieve bidirectional power transmission in any mode. In addition, when the circuit works in the DC-DC mode, multiple gating can be achieved by controlling switch K2, so as to realize the parallel connection of inductors and further broaden the working power range.

[0092] The above controllable circuit is symmetric left and right, and has the same circuit structure when the electric energy is transmitted from left to right and from right to left. Taking the transmission of electric energy from left to right as an example, the working process of the circuit is described below.

[0093] First, the control chip determines the working mode and then outputs the corresponding gating signal. The working modes corresponding to different switch states are shown in Table 1 above. If it works in the DC-DC mode, according to the system capacity, determine whether switch K2 is single-channel conduction or multi-channel simultaneous conduction, and then match the appropriate inductance and current-carrying capacity.

[0094] In this embodiment, through the above controllable circuit, by controlling the first switch to the fourth switch, the first gating switch, and the second gating switch, the functions of rectification, inversion, and DC power conversion can be achieved. Moreover, the circuit structure of the above controllable circuit is simple. Therefore, this method solves the technical problems of complex circuit and bloated structure in integrating the three functions of rectification, inversion, and DC power conversion.

[0095] As an optional example, the above first switch, the above second switch, the above third switch, and the above fourth switch are in the closed state; the first path of the above first gating switch is in the closed state, and the second path of the above first gating switch is in the open state; the first path of the above second gating switch is in the closed state, and each of the other paths of the above second gating switch is in the open state.

[0096] As an optional example, when direct current is on one side of the above device and alternating current is on the other side, when electric energy passes from the direct current side through the above device to the alternating current side, the above controllable circuit in the above device is in the single-phase inversion state; when the electric energy passes from the alternating current side to the direct current side, the above controllable circuit in the above device is in the single-phase full-controlled bridge rectification state.

[0097] As an optional example, the first path of the above first gating switch is in the open state, and the second path of the above first gating switch is in the closed state; the first path of the above second gating switch is in the open state, and at least one of the other paths of the above second gating switch is in the closed state.

[0098] As an optional example, the above device further includes: a first adjustment module, configured to place the above first switch and the above fourth switch in the closed state, and place the above second switch and the above third switch in the open state; after charging the above inductor, adjust the above third switch to the closed state and the above fourth switch to the open state.

[0099] As an optional example, the above device further includes: a second adjustment module, configured to place the above second switch and the above third switch in the closed state, and place the above first switch and the above fourth switch in the open state; after charging the above inductor, adjust the above first switch to the closed state and the above second switch to the open state.

[0100] As an optional example, the above device further includes: a third adjustment module, configured to place the above first switch and the above third switch in the closed state, and place the above second switch and the above fourth switch in the open state, and supply power to the output terminal by the above inductor; adjust the above second switch to the closed state and the above first switch to the open state to charge the above inductor.

[0101] As an alternative example, the above device further includes: a fourth adjustment module, configured to place the first switch and the third switch in a closed state, place the second switch and the fourth switch in an open state, and supply power to the output terminal by the inductor; adjust the fourth switch to a closed state, adjust the third switch to an open state, and charge the inductor.

[0102] As an alternative example, the other paths of the second selection switch include 3 wires.

[0103] For other examples of this embodiment, please refer to the above examples and will not be elaborated here.

[0104] Figure 7 is a structural block diagram of an alternative electronic device according to an embodiment of the present application, as Figure 7 shown, including a processor 702, a communication interface 704, a memory 706, and a communication bus 708. Among them, the processor 702, the communication interface 704, and the memory 706 complete mutual communication through the communication bus 708. Among them,

[0105] The memory 706 is used to store a computer program;

[0106] The processor 702 is configured to implement the functions of the above controllable circuit when executing the computer program stored on the memory 706.

[0107] Optionally, in this embodiment, the above communication bus may be a PCI (Peripheral Component Interconnect) bus, or an EISA (Extended Industry Standard Architecture) bus, etc. The communication bus can be divided into an address bus, a data bus, a control bus, etc. For the sake of convenience of representation, Figure 7 only a thick line is used to represent it in the figure, but it does not mean that there is only one bus or one type of bus. The communication interface is used for communication between the above electronic device and other devices.

[0108] The memory may include a RAM, and may also include a non-volatile memory, for example, at least one disk memory. Optionally, the memory may also be at least one storage device located far from the aforementioned processor.

[0109] The above-mentioned processor can be a general-purpose processor, including but not limited to: CPU (Central Processing Unit, central processing unit), NP (Network Processor, network processor), etc.; it can also be a DSP (Digital Signal Processing, digital signal processor), ASIC (Application Specific Integrated Circuit, application-specific integrated circuit), FPGA (Field-Programmable Gate Array, field programmable gate array), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components.

[0110] Optionally, specific examples in this embodiment may refer to the examples described in the above embodiments, and will not be elaborated herein.

[0111] Those of ordinary skill in the art can understand that all or part of the steps in the various methods of the above embodiments can be completed by instructing the hardware related to the terminal device through a program, and this program can be stored in a computer-readable storage medium, and the storage medium can include: flash drive, ROM, RAM, disk or optical disc, etc.

[0112] According to another aspect of the embodiments of the present invention, a computer-readable storage medium is further provided. A computer program is stored in the computer-readable storage medium, wherein the computer program implements the functions of the above-mentioned controllable circuit when run by a processor.

[0113] Optionally, in this embodiment, those of ordinary skill in the art can understand that all or part of the steps in the various methods of the above embodiments can be completed by instructing the hardware related to the terminal device through a program, and this program can be stored in a computer-readable storage medium, and the storage medium can include: flash drive, read-only memory (ROM), random access memory (RAM), disk or optical disc, etc.

[0114] The serial numbers of the above embodiments of the present invention are only for description and do not represent the advantages or disadvantages of the embodiments.

[0115] If the integrated unit in the above embodiments is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in the above computer-readable storage medium. Based on such an understanding, the technical solution of the present invention, in essence, or the part that contributes to the prior art, or all or part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions for causing one or more computer devices (which may be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods in the various embodiments of the present invention.

[0116] In the above embodiments of the present invention, the descriptions of the various embodiments have their own emphases. For the parts not detailed in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0117] In the several embodiments provided by the present application, it should be understood that the disclosed client can be implemented in other ways. Among them, the device embodiments described above are only illustrative. For example, the division of the units is only a logical function division. In actual implementation, there may be other division methods. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the displayed or discussed couplings or direct couplings or communication connections to each other can be through some interfaces. The indirect couplings or communication connections of the units or modules can be in an electrical or other form.

[0118] The units described as separate components may or may not be physically separated. The components displayed as units may or may not be physical units, that is, they can be located in one place or distributed to multiple network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0119] In addition, the functional units in the various embodiments of the present invention can be integrated in a processing unit, or each unit can exist physically alone, or two or more units can be integrated in one unit. The above integrated units can be implemented in the form of hardware or in the form of software functional units.

[0120] The above are only the preferred embodiments of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and refinements can still be made, and these improvements and refinements should also be regarded as the protection scope of the present invention.

Claims

1. A controllable circuit, characterized in that, including: a first circuit line connecting a positive circuit and a negative circuit, and a second circuit line connecting the positive circuit and the negative circuit, wherein a first switch and a second switch are connected in series on the first circuit line, and a third switch and a fourth switch are connected in series on the second circuit line; a first selection switch, wherein the first selection switch is located at the connection between the second circuit line and the positive circuit, one side of the first selection switch is connected to the third switch, a first path on the other side of the first selection switch is connected to a first sub-circuit of the positive circuit, a second path on the other side of the first selection switch is connected to a second sub-circuit of the positive circuit, and the first sub-circuit and the second sub-circuit are disconnected from each other; a second selection switch, wherein one side of the second selection switch is connected to the circuit line between the first switch and the second switch on the first circuit line, a first path on the other side of the second selection switch is connected to one side of an AC load or an AC power supply, each of the other paths on the other side of the second selection switch is connected to an inductor, the inductor is connected to the circuit line between the third switch and the fourth switch on the second circuit line, and the other side of the AC load or the AC power supply is connected to the circuit line between the third switch and the fourth switch on the second circuit line.

2. The controllable circuit according to claim 1, characterized in that The controllable circuit further includes: closing the first switch, the second switch, the third switch and the fourth switch; closing the first path of the first selection switch and opening the second path of the first selection switch; closing the first path of the second selection switch and opening each of the other paths of the second selection switch.

3. The controllable circuit according to claim 2, wherein The controllable circuit further includes: when direct current is on one side of the controllable circuit and alternating current is on the other side, when electric energy passes from the direct current side through the controllable circuit to the alternating current side, the controllable circuit is in a single-phase inverter state; when the electric energy passes from the alternating current side to the direct current side, the controllable circuit is in a single-phase full-controlled bridge rectification state.

4. The controllable circuit according to claim 1, characterized in that, The controllable circuit further includes: opening the first path of the first selection switch and closing the second path of the first selection switch; opening the first path of the second selection switch and closing at least one of the other paths of the second selection switch.

5. The controllable circuit according to claim 4, characterized in that, The controllable circuit further includes: closing the first switch and the fourth switch and opening the second switch and the third switch; after charging the inductor, adjusting the third switch to the closed state and the fourth switch to the open state.

6. The controllable circuit according to claim 4, wherein The controllable circuit further includes: closing the second switch and the third switch and opening the first switch and the fourth switch; after charging the inductor, adjusting the first switch to the closed state and the second switch to the open state.

7. The controllable circuit according to claim 4, wherein The controllable circuit further includes: Place the first switch and the third switch in the closed state, place the second switch and the fourth switch in the open state, and supply power to the output terminal by the inductor; Adjust the second switch to the closed state, adjust the first switch to the open state, and charge the inductor.

8. The controllable circuit according to claim 4, wherein The controllable circuit further includes: Place the first switch and the third switch in the closed state, place the second switch and the fourth switch in the open state, and supply power to the output terminal by the inductor; Adjust the fourth switch to the closed state, adjust the third switch to the open state, and charge the inductor.

9. The controllable circuit according to claim 4, characterized in that, The other paths of the second selection switch include 3 wires.

10. A device comprising a controllable circuit, characterized in that, Include: A first circuit line connecting the positive electrode circuit and the negative electrode circuit and a second circuit line connecting the positive electrode circuit and the negative electrode circuit, wherein a first switch and a second switch are connected in series on the first circuit line, and a third switch and a fourth switch are connected in series on the second circuit line; A first selection switch, wherein the first selection switch is located at the connection of the second circuit line and the positive electrode circuit, one side of the first selection switch is connected to the third switch, the first path on the other side of the first selection switch is connected to the first sub-circuit of the positive electrode circuit, the second path on the other side of the first selection switch is connected to the second sub-circuit of the positive electrode circuit, and the first sub-circuit and the second sub-circuit are disconnected; A second selection switch, wherein one side of the second selection switch is connected to the circuit line between the first switch and the second switch on the first circuit line, the first path on the other side of the second selection switch is connected to one side of the AC load or the AC power supply, each of the other paths on the other side of the second selection switch is connected to an inductor, the inductor is connected to the circuit line between the third switch and the fourth switch on the second circuit line, and the other side of the AC load or the AC power supply is connected to the circuit line between the third switch and the fourth switch on the second circuit line.

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