A power distribution circuit, a power distributor and an electrical appliance
By using a low-loss ferrite core common-mode inductor and a bridge design, a low-loss power distribution circuit was achieved, solving the problem of high insertion loss in the prior art and improving the performance of the power divider.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENZHEN ZHENHUA FU ELECTRONICS
- Filing Date
- 2025-07-28
- Publication Date
- 2026-07-24
AI Technical Summary
Existing power dividers have high insertion losses, resulting in low performance.
Using a low-loss ferrite core as a common-mode inductor, combined with a bridge circuit and capacitors, a power distribution circuit is designed to receive input signals through the signal input terminal and output target signals with phase differences of 0 degrees, 90 degrees, 180 degrees and 270 degrees through multiple signal output terminals.
This reduces the insertion loss of the power divider and improves its performance.
Smart Images
Figure CN224554680U_ABST
Abstract
Description
Technical Field
[0001] This application belongs to the field of power distribution technology, and particularly relates to a power distribution circuit, a power divider, and an electrical device. Background Technology
[0002] A power divider is a device that splits the energy of one input signal into two or more outputs of equal or unequal energy. Existing power dividers typically include components with high insertion losses, and the large number of components in existing power dividers further increases the insertion loss and reduces the performance of the power divider. Summary of the Invention
[0003] In view of this, embodiments of this application provide a power distribution circuit, a power divider, and an electrical device to solve the technical problem of low performance of power dividers due to high insertion loss in existing power dividers.
[0004] In a first aspect, embodiments of this application provide a power distribution circuit, including a first common-mode inductor, a second common-mode inductor, a third common-mode inductor, a first bridge, and a second bridge. The first common-mode inductor, the second common-mode inductor, and the third common-mode inductor all include ferrite cores. A first terminal and a second terminal of the first common-mode inductor are shared as a signal input terminal of the power distribution circuit. The third terminal of the first common-mode inductor is connected to the first terminal of the second common-mode inductor. A fourth terminal of the first common-mode inductor is connected to the first terminal of the third common-mode inductor. The second terminal of the second common-mode inductor is connected to the input terminal of the first bridge. The third terminal of the common-mode inductor is connected to the first output terminal of the first bridge. The fourth terminal of the second common-mode inductor and the second terminal of the third common-mode inductor are both connected to ground. The third terminal of the third common-mode inductor is connected to the input terminal of the second bridge. The fourth terminal of the third common-mode inductor is connected to the first output terminal of the second bridge. The second output terminal of the first bridge serves as the first signal output terminal of the power distribution circuit. The third output terminal of the first bridge serves as the second signal output terminal of the power distribution circuit. The first output terminal of the second bridge serves as the third signal output terminal of the power distribution circuit. The second output terminal of the second bridge serves as the fourth signal output terminal of the power distribution circuit.
[0005] The power distribution circuit is used to: receive an input signal through the signal input terminal, output a first target signal through the first signal output terminal, output a second target signal through the second signal output terminal, output a third target signal through the third signal output terminal, and output a fourth target signal through the fourth signal output terminal.
[0006] Optionally, the first bridge is used to control the phase difference between the first target signal and the input signal to be 0 degrees, and to control the phase difference between the second target signal and the input signal to be 90 degrees; the second bridge is used to control the phase difference between the third target signal and the input signal to be 180 degrees, and to control the phase difference between the fourth target signal and the input signal to be 270 degrees.
[0007] Optionally, a capacitor is also included, wherein the input terminal of the capacitor, the first terminal of the first common-mode inductor, and the second terminal of the first common-mode inductor are all connected as the signal input terminal of the power distribution circuit, and the output terminal of the capacitor is grounded.
[0008] Optionally, it also includes a first resistor, wherein the first end of the first resistor, the third end of the first common-mode inductor and the first end of the second common-mode inductor are connected together, and the second end of the first resistor, the fourth end of the first common-mode inductor and the first end of the third common-mode inductor are connected together.
[0009] Optionally, a second resistor is also included, wherein the first end of the second resistor, the second end of the second common-mode inductor, and the input terminal of the first bridge are connected together, and the second end of the second resistor is grounded.
[0010] Optionally, a third resistor is also included, wherein the first end of the third resistor, the third end of the third common-mode inductor, and the input terminal of the second bridge are all connected together, and the second end of the third resistor is grounded.
[0011] Optionally, a fourth resistor, a fifth resistor, a sixth resistor, a seventh resistor, and an eighth resistor may also be included;
[0012] The first end of the fourth resistor is connected to the signal input terminal of the power distribution circuit, and the second end of the fourth resistor is grounded; the first end of the fifth resistor is connected to the first signal output terminal of the power distribution circuit, and the second end of the fifth resistor is grounded; the first end of the sixth resistor is connected to the second signal output terminal of the power distribution circuit, and the second end of the sixth resistor is grounded; the first end of the seventh resistor is connected to the third signal output terminal of the power distribution circuit, and the second end of the seventh resistor is grounded; the first end of the eighth resistor is connected to the fourth signal output terminal of the power distribution circuit, and the second end of the eighth resistor is grounded.
[0013] Secondly, embodiments of this application provide a power divider, including the power distribution circuit as described in any of the first aspects.
[0014] Optionally, it also includes a ceramic base plate, wherein the first common mode inductor, the second common mode inductor, and the third common mode inductor are all connected to the ceramic base plate by electronic spot welding.
[0015] Thirdly, embodiments of this application provide an electrical device including a power distribution circuit as described in any of the first aspects.
[0016] This application provides a power distribution circuit, power distributor, and electrical device with the following features:
[0017] Beneficial effects:
[0018] The power distribution circuit provided in this application embodiment includes a first common-mode inductor, a second common-mode inductor, a third common-mode inductor, a first bridge, and a second bridge. The first, second, and third common-mode inductors all include ferrite cores. The first and second terminals of the first common-mode inductor are connected together as the signal input terminal of the power distribution circuit. The third terminal of the first common-mode inductor is connected to the first terminal of the second common-mode inductor. The fourth terminal of the first common-mode inductor is connected to the first terminal of the third common-mode inductor. The second terminal of the second common-mode inductor is connected to the input terminal of the first bridge. The third terminal of the second common-mode inductor is connected to the first output terminal of the first bridge. The fourth terminal of the second common-mode inductor and the second terminal of the third common-mode inductor are both connected to ground. The third terminal of the third common-mode inductor is connected to the input terminal of the second bridge, and the fourth terminal of the third common-mode inductor is connected to the first output terminal of the second bridge. The second output terminal of the first bridge serves as the first signal output terminal of the power distribution circuit, the third output terminal of the first bridge serves as the second signal output terminal of the power distribution circuit, the first output terminal of the second bridge serves as the third signal output terminal of the power distribution circuit, and the second output terminal of the second bridge serves as the fourth signal output terminal of the power distribution circuit. The power distribution circuit is used to: receive an input signal through the signal input terminal, output a first target signal through the first signal output terminal, output a second target signal through the second signal output terminal, output a third target signal through the third signal output terminal, and output a fourth target signal through the fourth signal output terminal. The power distribution circuit provided in this application only includes a small number of components to achieve the power distribution function, and the first, second, and third common-mode inductors in the power distribution circuit all use low-loss ferrite cores, thus reducing the insertion loss of the power divider and improving its performance. Attached Figure Description
[0019] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0020] Figure 1 This is a schematic diagram of a power distribution circuit provided in an embodiment of this application;
[0021] Figure 2 A schematic diagram of a power distribution circuit provided in another embodiment of this application;
[0022] Figure 3 This is a schematic diagram of a power divider provided in an embodiment of this application. Detailed Implementation
[0023] It should be noted that the terminology used in the embodiments of this application is only for explaining specific embodiments of this application and is not intended to limit this application. In the description of the embodiments of this application, unless otherwise stated, "multiple" means two or more, "at least one" or "one or more" means one, two or more. The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.
[0024] References to "one embodiment" or "some embodiments" as described in this specification mean that one or more embodiments of this application include a specific feature, structure, or characteristic described in connection with that embodiment. Therefore, the phrases "in one embodiment," "in some embodiments," "in other embodiments," "in still other embodiments," etc., appearing in different parts of this specification do not necessarily refer to the same embodiment, but rather mean "one or more, but not all, embodiments," unless otherwise specifically emphasized. The terms "comprising," "including," "having," and variations thereof mean "including but not limited to," unless otherwise specifically emphasized.
[0025] The power distribution circuit and power divider provided in this application embodiment can be applied to any scenario that requires power distribution.
[0026] This application first provides a schematic diagram of a power distribution circuit. Please refer to... Figure 1 , Figure 1 This is a schematic diagram of a power distribution circuit provided in an embodiment of this application, as shown below. Figure 1As shown, the power distribution circuit may include a first common-mode inductor L1, a second common-mode inductor L2, a third common-mode inductor L3, a first bridge EB1, and a second bridge EB2.
[0027] The first common-mode inductor L1, the second common-mode inductor L2, and the third common-mode inductor L3 all include ferrite cores. Because ferrite cores have low losses, the first common-mode inductor L1, the second common-mode inductor L2, and the third common-mode inductor L3, which include ferrite cores, also have low losses.
[0028] In this circuit, the first and second terminals of the first common-mode inductor L1 are connected together as the signal input terminal of the power distribution circuit. The third terminal of the first common-mode inductor L1 is connected to the first terminal of the second common-mode inductor L2, and the fourth terminal of the first common-mode inductor L1 is connected to the first terminal of the third common-mode inductor L3. The second terminal of the second common-mode inductor L2 is connected to the input terminal of the first bridge EB1, and the third terminal of the second common-mode inductor L2 is connected to the first output terminal of the first bridge EB1. The fourth terminal of the second common-mode inductor L2 is connected to the first terminal of the third common-mode inductor L3. The second terminal of 3 is connected to ground. The third terminal of the third common-mode inductor L3 is connected to the input terminal of the second bridge EB2. The fourth terminal of the third common-mode inductor L3 is connected to the first output terminal of the second bridge EB2. The second output terminal of the first bridge EB1 serves as the first signal output terminal of the power distribution circuit. The third output terminal of the first bridge EB1 serves as the second signal output terminal of the power distribution circuit. The first output terminal of the second bridge EB2 serves as the third signal output terminal of the power distribution circuit. The second output terminal of the second bridge EB2 serves as the fourth signal output terminal of the power distribution circuit.
[0029] The power distribution circuit is used to: receive an input signal through the signal input terminal, output a first target signal through the first signal output terminal, output a second target signal through the second signal output terminal, output a third target signal through the third signal output terminal, and output a fourth target signal through the fourth signal output terminal.
[0030] Specifically, the first bridge EB1 is used to control the phase difference between the first target signal and the input signal to be 0 degrees, and to control the phase difference between the second target signal and the input signal to be 90 degrees; the second bridge EB2 is used to control the phase difference between the third target signal and the input signal to be 180 degrees, and to control the phase difference between the fourth target signal and the input signal to be 270 degrees.
[0031] Based on this, in the power distribution circuit, the phase difference between the first target signal output through the first signal output terminal and the input signal is 0 degrees, the phase difference between the second target signal output through the second signal output terminal and the input signal is 90 degrees, the phase difference between the third target signal output through the third signal output terminal and the input signal is 180 degrees, and the phase difference between the fourth target signal output through the fourth signal output terminal and the input signal is 270 degrees.
[0032] As can be seen, the power distribution circuit provided in this application embodiment can achieve phase differences of 0 degrees, 90 degrees, 180 degrees and 270 degrees between the output first target signal, second target signal, third target signal and fourth target signal and the input signal, respectively.
[0033] The first common-mode inductor L1 may include a first coil L11 and a second coil L12. The first end of the first coil L11 serves as the first end of the first common-mode inductor L1, the second end of the first coil L11 serves as the third end of the first common-mode inductor L1, the first end of the second coil L12 serves as the second end of the first common-mode inductor L1, and the second end of the second coil L12 serves as the fourth end of the first common-mode inductor L1.
[0034] The second common-mode inductor L2 may include a third coil L21 and a fourth coil L22. The first end of the third coil L21 serves as the first end of the second common-mode inductor L2, and the second end of the third coil L21 serves as the second end of the second common-mode inductor L2. The first end of the fourth coil L22 serves as the third end of the second common-mode inductor L2, and the second end of the fourth coil L22 serves as the fourth end of the second common-mode inductor L2.
[0035] The third common-mode inductor L3 may include a fifth coil L31 and a sixth coil L32. The first end of the fifth coil L31 serves as the second end of the third common-mode inductor L3, the second end of the fifth coil L31 serves as the third end of the third common-mode inductor L3, the first end of the sixth coil L32 serves as the first end of the third common-mode inductor L3, and the second end of the sixth coil L32 serves as the fourth end of the third common-mode inductor L3.
[0036] The power distribution circuit may include pins 1, 2, 3, 4, and 5. Pin 1 can be used as the signal input terminal of the power distribution circuit, pin 2 can be used as the first signal output terminal of the power distribution circuit, pin 3 can be used as the second signal output terminal of the power distribution circuit, pin 4 can be used as the third signal output terminal of the power distribution circuit, and pin 5 can be used as the fourth signal output terminal of the power distribution circuit.
[0037] The following combination Figure 1 ,right Figure 1The working principle of the provided power distribution circuit is explained.
[0038] After the input signal is input to the first common-mode inductor L1 through pin 1, one of the signals will be input to the input terminal of the first bridge EB1 through the third coil L21 in the second common-mode inductor L2. The second output terminal of the first bridge EB1 can output the first target signal with a phase difference of 0 degrees from the input signal to pin 2, and the third output terminal of the first bridge EB1 can output the second target signal with a phase difference of 90 degrees from the input signal to pin 3.
[0039] Furthermore, the first output terminal of the first bridge EB1 can output a signal with a phase difference of 0 degrees from the input signal. The signal output from the first output terminal of the first bridge EB1 passes through the fourth coil L22 in the second common-mode inductor L2 and the fifth coil L31 in the third common-mode inductor L3 and is input to the input terminal of the second bridge EB2. After passing through the fourth coil L22 in the second common-mode inductor L2 and the fifth coil L31 in the third common-mode inductor L3, the signal output from the first output terminal of the first bridge EB1 has a phase difference of 180 degrees with the input signal. Therefore, the signal input to the input terminal of the second bridge EB2 has a phase difference of 180 degrees with the input signal. The first output terminal of the second bridge EB2 can output a third target signal with a phase difference of 180 degrees from the input signal to pin 4. The second output terminal of the second bridge EB2 can output a fourth target signal with a phase difference of 270 degrees from the input signal to pin 5.
[0040] Through the above working process, the phase difference between the first target signal output by pin 2 (first signal output terminal) of the power distribution circuit and the input signal is 0 degrees; the phase difference between the second target signal output by pin 3 (second signal output terminal) of the power distribution circuit and the input signal is 90 degrees; the phase difference between the third target signal output by pin 4 (third signal output terminal) of the power distribution circuit and the input signal is 180 degrees; and the phase difference between the fourth target signal output by pin 5 (fourth signal output terminal) of the power distribution circuit and the input signal is 270 degrees.
[0041] As can be seen from the above, the power distribution circuit provided in this application embodiment includes a first common-mode inductor, a second common-mode inductor, a third common-mode inductor, a first bridge, and a second bridge. The first, second, and third common-mode inductors all include ferrite cores. The first and second ends of the first common-mode inductor are connected together as the signal input terminal of the power distribution circuit. The third end of the first common-mode inductor is connected to the first end of the second common-mode inductor. The fourth end of the first common-mode inductor is connected to the first end of the third common-mode inductor. The second end of the second common-mode inductor is connected to the input terminal of the first bridge. The third end of the second common-mode inductor is connected to the first output terminal of the first bridge. The fourth end of the second common-mode inductor and the second end of the third common-mode inductor are connected together... The third common-mode inductor is grounded, with its third terminal connected to the input terminal of the second bridge, and its fourth terminal connected to the first output terminal of the second bridge. The second output terminal of the first bridge serves as the first signal output terminal of the power distribution circuit, the third output terminal of the first bridge serves as the second signal output terminal of the power distribution circuit, the first output terminal of the second bridge serves as the third signal output terminal of the power distribution circuit, and the second output terminal of the second bridge serves as the fourth signal output terminal of the power distribution circuit. The power distribution circuit is used to: receive an input signal through the signal input terminal, output a first target signal through the first signal output terminal, output a second target signal through the second signal output terminal, output a third target signal through the third signal output terminal, and output a fourth target signal through the fourth signal output terminal. The power distribution circuit provided in this application only includes a small number of components to achieve the power distribution function, and the first, second, and third common-mode inductors in the power distribution circuit all use low-loss ferrite cores, thus reducing the insertion loss of the power divider and improving its performance.
[0042] Please see Figure 2 , Figure 2 This is a schematic diagram of a power distribution circuit provided in another embodiment of this application.
[0043] like Figure 2 As shown, this embodiment is similar to Figure 1 One difference from the corresponding embodiments is that the power distribution circuit provided in this embodiment also includes a capacitor C.
[0044] In this circuit, the input terminal of capacitor C, the first terminal of the first common-mode inductor L1, and the second terminal of the first common-mode inductor L1 are all connected together as the signal input terminal of the power distribution circuit, and the output terminal of capacitor C is grounded. Capacitor C can also serve as a bypass at the ground terminal.
[0045] In practical applications, a low-loss capacitor can be selected as capacitor C, which can further reduce the insertion loss of the power divider.
[0046] like Figure 2 As shown, this embodiment is similar to Figure 1 One difference from the corresponding embodiment is that the power distribution circuit provided in this embodiment also includes a first resistor R1.
[0047] In this configuration, the first terminal of the first resistor R1, the third terminal of the first common-mode inductor L1, and the first terminal of the second common-mode inductor L2 are connected together; the second terminal of the first resistor R1, the fourth terminal of the first common-mode inductor L1, and the first terminal of the third common-mode inductor L3 are also connected together. The first resistor R1 serves to isolate signals, thereby preventing interference between signals.
[0048] like Figure 2 As shown, this embodiment is similar to Figure 1 One difference from the corresponding embodiment is that the power distribution circuit provided in this embodiment also includes a second resistor R2.
[0049] In this circuit, the first terminal of the second resistor R2, the second terminal of the second common-mode inductor L2, and the input terminal of the first bridge EB1 are all connected together, while the second terminal of the second resistor R2 is grounded. The second resistor R2 serves to isolate signals, thereby preventing interference between signals.
[0050] like Figure 2 As shown, this embodiment is similar to Figure 1 One difference from the corresponding embodiment is that the power distribution circuit provided in this embodiment also includes a third resistor R3.
[0051] In this circuit, the first terminal of the third resistor R3, the third terminal of the third common-mode inductor L3, and the input terminal of the second bridge EB2 are all connected together, while the second terminal of the third resistor R3 is grounded. The third resistor R3 serves to isolate signals, thereby preventing interference between signals.
[0052] like Figure 2 As shown, this embodiment is similar to Figure 1 One of the differences in the corresponding embodiments is that the power distribution circuit provided in this embodiment also includes a fourth resistor R4, a fifth resistor R5, a sixth resistor R6, a seventh resistor R7, and an eighth resistor R8.
[0053] Specifically, the first terminal of the fourth resistor R4 is connected to the signal input terminal of the power distribution circuit, and the second terminal of the fourth resistor R4 is grounded; the first terminal of the fifth resistor R5 is connected to the first signal output terminal of the power distribution circuit, and the second terminal of the fifth resistor R5 is grounded; the first terminal of the sixth resistor R6 is connected to the second signal output terminal of the power distribution circuit, and the second terminal of the sixth resistor R6 is grounded; the first terminal of the seventh resistor R7 is connected to the third signal output terminal of the power distribution circuit, and the second terminal of the seventh resistor R7 is grounded; and the first terminal of the eighth resistor R8 is connected to the fourth signal output terminal of the power distribution circuit, and the second terminal of the eighth resistor R8 is grounded.
[0054] In practical applications, the fourth resistor R4, the fifth resistor R5, the sixth resistor R6, the seventh resistor R7, and the eighth resistor R8 can all be thick-film resistors to improve the reliability of the power distribution circuit.
[0055] Based on the power distribution circuit provided above, embodiments of this application provide a power divider, which may include the power distribution circuit provided in any embodiment of this application.
[0056] Please see Figure 3 , Figure 3 This is a schematic diagram of a power divider provided in an embodiment of this application. Figure 3 As shown, the power divider provided in this application embodiment may also include a ceramic base plate, and the first common mode inductor L1, the second common mode inductor L2 and the third common mode inductor L3 in the power distribution circuit are all connected to the ceramic base plate by electronic spot welding.
[0057] By connecting the first common-mode inductor L1, the second common-mode inductor L2, and the third common-mode inductor L3 to the ceramic base plate via electronic spot welding in the power distribution circuit, the capacitance between the coils of the first common-mode inductor L1, the second common-mode inductor L2, and the third common-mode inductor L3 and the ceramic base plate can be reduced. Specifically, the ports of the first common-mode inductor L1, the second common-mode inductor L2, and the third common-mode inductor L3 can be welded to the ceramic base plate via electronic spot welding, and the bodies of the first common-mode inductor L1, the second common-mode inductor L2, and the third common-mode inductor L3 can be bonded and fixed using highly adhesive epoxy resin.
[0058] like Figure 3 As shown, the power divider provided in this application embodiment may also include a housing made of epoxy resin.
[0059] In practical applications, all pins in the power distribution circuit can be directly printed on the ceramic substrate, and the capacitor C in the power distribution circuit can be directly soldered onto the ceramic substrate, thereby improving the solderability of the power divider. The power divider's casing can be encapsulated and cured with high-adhesion epoxy resin. This makes the various inductors, capacitors, resistors, ceramic substrate, and casing inside the power divider a single unit, thus improving the power divider's vibration resistance, shock resistance, and solderability.
[0060] Furthermore, the power divider provided in this application embodiment adopts a large-area grounding treatment, that is, multiple terminals of the power divider provided in this application embodiment are connected to ground, thereby further reducing the insertion loss of the power divider, improving the phase balance of the power divider, and improving the isolation of the power divider, ultimately improving the performance of the power divider.
[0061] Based on the power distribution circuit provided above, embodiments of this application provide an electrical device that may include the power distribution circuit provided in any embodiment of this application.
[0062] In the above embodiments, the descriptions of each embodiment have different focuses. For parts that are not described in detail or recorded in a certain embodiment, refer to the relevant descriptions of other embodiments.
[0063] Those skilled in the art will recognize that the units and algorithm steps of the various examples described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.
[0064] The above-described embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application, and should all be included within the protection scope of this application.
Claims
1. A power distribution circuit, characterized in that, The circuit includes a first common-mode inductor, a second common-mode inductor, a third common-mode inductor, a first bridge circuit, and a second bridge circuit. The first, second, and third common-mode inductors all include ferrite cores. The first and second terminals of the first common-mode inductor are shared as the signal input terminal of the power distribution circuit. The third terminal of the first common-mode inductor is connected to the first terminal of the second common-mode inductor. The fourth terminal of the first common-mode inductor is connected to the first terminal of the third common-mode inductor. The second terminal of the second common-mode inductor is connected to the input terminal of the first bridge circuit. The third terminal of the second common-mode inductor is connected to the input terminal of the third bridge circuit. The first output terminal of the first bridge is connected, the fourth terminal of the second common-mode inductor and the second terminal of the third common-mode inductor are connected to ground, the third terminal of the third common-mode inductor is connected to the input terminal of the second bridge, the fourth terminal of the third common-mode inductor is connected to the first output terminal of the second bridge, the second output terminal of the first bridge serves as the first signal output terminal of the power distribution circuit, the third output terminal of the first bridge serves as the second signal output terminal of the power distribution circuit, the first output terminal of the second bridge serves as the third signal output terminal of the power distribution circuit, and the second output terminal of the second bridge serves as the fourth signal output terminal of the power distribution circuit. The power distribution circuit is used to: receive an input signal through the signal input terminal, output a first target signal through the first signal output terminal, output a second target signal through the second signal output terminal, output a third target signal through the third signal output terminal, and output a fourth target signal through the fourth signal output terminal.
2. The power distribution circuit according to claim 1, characterized in that, The first bridge is used to control the phase difference between the first target signal and the input signal to be 0 degrees, and to control the phase difference between the second target signal and the input signal to be 90 degrees; the second bridge is used to control the phase difference between the third target signal and the input signal to be 180 degrees, and to control the phase difference between the fourth target signal and the input signal to be 270 degrees.
3. The power distribution circuit according to claim 1, characterized in that, It also includes a capacitor, the input terminal of which, the first terminal of the first common-mode inductor, and the second terminal of the first common-mode inductor are all connected as the signal input terminal of the power distribution circuit, and the output terminal of the capacitor is grounded.
4. The power distribution circuit according to claim 1, characterized in that, It also includes a first resistor, the first end of the first resistor, the third end of the first common-mode inductor and the first end of the second common-mode inductor are connected together, and the second end of the first resistor, the fourth end of the first common-mode inductor and the first end of the third common-mode inductor are connected together.
5. The power distribution circuit according to claim 1, characterized in that, It also includes a second resistor, the first end of the second resistor, the second end of the second common-mode inductor and the input terminal of the first bridge are connected together, and the second end of the second resistor is grounded.
6. The power distribution circuit according to claim 1, characterized in that, It also includes a third resistor, the first end of which, the third end of the third common-mode inductor, and the input end of the second bridge are all connected together, and the second end of the third resistor is grounded.
7. The power distribution circuit according to claim 1, characterized in that, It also includes a fourth resistor, a fifth resistor, a sixth resistor, a seventh resistor, and an eighth resistor; The first end of the fourth resistor is connected to the signal input terminal of the power distribution circuit, and the second end of the fourth resistor is grounded; the first end of the fifth resistor is connected to the first signal output terminal of the power distribution circuit, and the second end of the fifth resistor is grounded; the first end of the sixth resistor is connected to the second signal output terminal of the power distribution circuit, and the second end of the sixth resistor is grounded; the first end of the seventh resistor is connected to the third signal output terminal of the power distribution circuit, and the second end of the seventh resistor is grounded; the first end of the eighth resistor is connected to the fourth signal output terminal of the power distribution circuit, and the second end of the eighth resistor is grounded.
8. A power divider, characterized in that, Includes the power distribution circuit as described in any one of claims 1 to 7.
9. The power divider according to claim 8, characterized in that, It also includes a ceramic base plate, and the first common mode inductor, the second common mode inductor, and the third common mode inductor are all connected to the ceramic base plate by electronic spot welding.
10. An electrical appliance, characterized in that, Includes the power distribution circuit as described in any one of claims 1 to 7.