Hybrid power supply circuit

Abstract

The application discloses a hybrid power supply circuit and relates to the technical field of transformers. The circuit comprises a primary circuit and a secondary circuit arranged on one side of the primary circuit. The primary circuit comprises a first primary coil and a second primary coil for electrically coupling a voltage source respectively. The first primary coil and the second primary coil are subjected to common mode filtering and / or differential mode filtering by adjusting the phase. The secondary circuit comprises a first secondary coil and a second secondary coil for electrically coupling a load respectively. The position of the first secondary coil corresponds to the first primary coil, and the position of the second secondary coil corresponds to the second primary coil. The first secondary coil and the second secondary coil generate induced electromotive forces with the first primary coil and the second primary coil respectively. The hybrid power supply circuit can simultaneously have the functions of noise suppression and energy conversion.

Description

Technical Field

[0001] This invention belongs to the field of transformer technology, and particularly relates to a hybrid power supply circuit. Background Technology

[0002] Existing transformers only have primary and secondary windings, thus their function is limited to energy conversion (e.g., voltage boosting). However, operators frequently require electromagnetic compatibility (EMC) matching when using these transformers. This necessitates the purchase and installation of additional filters on the lines to suppress noise, resulting in a bulky circuit. Therefore, designing a transformer that simultaneously performs noise suppression and energy conversion is a pressing issue. Summary of the Invention

[0003] The purpose of this invention is to provide a hybrid power supply circuit that achieves common-mode filtering and / or differential-mode filtering by adjusting the phase through a first primary coil and a second primary coil; and generates induced electromotive force through the first primary coil and the second primary coil, respectively.

[0004] The objective of this invention can be achieved through the following technical solutions:

[0005] This application provides a hybrid power supply circuit, including a primary circuit and a secondary circuit. The primary circuit includes a first primary coil and a second primary coil. The first primary coil and the second primary coil are electrically coupled to a voltage source. The first primary coil and the second primary coil perform common-mode filtering and / or differential-mode filtering by adjusting their phases. The secondary circuit is disposed on one side of the primary circuit and includes a first primary coil and a second primary coil. The first primary coil and the second primary coil are electrically coupled to a load. The position of the first primary coil corresponds to the position of the first primary coil. The position of the second primary coil corresponds to the position of the second primary coil. The first primary coil and the second primary coil generate induced electromotive forces with the first primary coil and the second primary coil, respectively.

[0006] Preferably, the number of turns of the first primary coil is equal to the number of turns of the second primary coil; the number of turns of the first primary coil is equal to the number of turns of the second primary coil.

[0007] Preferably, the first primary coil and the second primary coil are electrically coupled with different phases to form a primary tap contact; the primary circuit further includes a primary capacitor; one end of the primary capacitor is electrically coupled to the primary tap contact, and the other end is grounded; the first primary coil and the second primary coil are electrically coupled with different phases to form a secondary tap contact; the secondary circuit further includes a secondary capacitor; one end of the secondary capacitor is electrically coupled to the secondary tap contact, and the other end is grounded.

[0008] Preferably, the primary circuit further includes an amplification primary coil and an amplification filter element; wherein, the amplification primary coil is electrically coupled to the first primary coil or the second primary coil to form an amplification tap contact; one end of the amplification filter element is electrically coupled to the amplification tap contact, and the other end is grounded.

[0009] Preferably, when the amplification primary coil is electrically coupled to the first primary coil through the amplification tap contact, the first primary coil and the amplification primary coil are electrically coupled to the amplification tap contact in the same phase, and the first primary coil is electrically coupled to the live wire through the amplification tap contact; when the amplification primary coil is electrically coupled to the second primary coil through the amplification tap contact, the second primary coil and the amplification primary coil are electrically coupled to the amplification tap contact in a different phase, and the second primary coil is electrically coupled to the neutral wire through the amplification tap contact.

[0010] Preferably, the primary circuit further includes a first amplification primary coil, a first amplification filter element, a second amplification primary coil, and a second amplification filter element; wherein, the first amplification primary coil is electrically coupled to the first primary coil, and a first amplification tap contact is formed between the first amplification primary coil and the first primary coil; one end of the first amplification filter element is electrically coupled to the first amplification tap contact, and the other end is grounded; the second amplification primary coil is electrically coupled to the second primary coil, and a second amplification tap contact is formed between the second amplification primary coil and the second primary coil; one end of the second amplification filter element is electrically coupled to the second amplification tap contact, and the other end is grounded.

[0011] Preferably, the first primary coil and the first amplification primary coil are electrically coupled in phase to the first amplification tap contact, and the first primary coil is electrically coupled to the voltage source through the first amplification tap contact; the second primary coil and the second amplification primary coil are electrically coupled in different phases to the second amplification tap contact, and the second primary coil is electrically coupled to the voltage source through the second amplification tap contact.

[0012] Preferably, the primary circuit further includes an auxiliary filter element; the auxiliary filter element is electrically coupled to the starting and / or ending ends of the first primary coil.

[0013] The beneficial effects of this invention are as follows:

[0014] (1) The present invention enables the hybrid power supply circuit to simultaneously possess functions such as noise suppression and energy conversion by designing that "the first primary coil and the second primary coil perform common-mode filtering and / or differential-mode filtering by adjusting their phases" and "the first primary coil and the second primary coil generate induced electromotive force with the first primary coil and the second primary coil respectively".

[0015] (2) The primary circuit of this invention also includes an amplification primary coil and an amplification filter element; one end of the amplification primary coil is electrically coupled to the first primary coil to form an amplification tap contact; one end of the amplification filter element is electrically coupled to the amplification tap contact, and the other end of the amplification filter group can be used to ground. Accordingly, the hybrid power supply circuit can further enhance the noise suppression effect.

[0016] (3) In this invention, when the hybrid power supply circuit receives a differential signal, the differential signal is amplified by tap contacts to separate the two windings that are in phase. That is, when a device connected to the hybrid power supply circuit receives input current, the current generates a magnetic field and presents a high impedance. This results in a high parallel impedance, thus not weakening the differential signal to achieve the effect of enhanced noise suppression. Attached Figure Description

[0017] To better understand and implement this application, the technical solution is described in detail below with reference to the accompanying drawings.

[0018] Figure 1 A circuit diagram of the hybrid power supply circuit provided in the first embodiment of this application;

[0019] Figure 2 A circuit diagram of the hybrid power supply circuit provided in the second embodiment of this application;

[0020] Figure 3 A circuit diagram illustrating another state of the hybrid power supply circuit provided in the second embodiment of this application;

[0021] Figure 4 A circuit diagram of the hybrid power supply circuit provided in the third embodiment of this application;

[0022] Figure 5 A schematic diagram illustrating the relationship between power and frequency in a hybrid power supply circuit provided in the third embodiment of this application; Attached Figure Description

[0024] In the diagram: 1. Primary circuit; L11, First primary coil; L12, Second primary coil; C13, Primary capacitor; L14, Amplification primary coil; L14A, First amplification primary coil; L14B, Second amplification primary coil; C15, Amplification filter element; C15A, First amplification filter element; C15B, Second amplification filter element; TC1, Primary tap contact; TC3, Amplification tap contact; TCA, First amplification tap contact; TCB, Second amplification tap contact; 2. Secondary circuit; L21, First primary coil; L22, Second secondary coil; C23, Secondary capacitor; TC2, Secondary tap contact; C3, Auxiliary capacitor; Sdd21, First segment; Scc21, Second segment; L, Live wire; N, Neutral wire. Detailed Implementation

[0025] To further illustrate the technical means and effects adopted by the present invention to achieve its intended purpose, exemplary embodiments will be described in detail below, examples of which are illustrated in the accompanying drawings. In the following description relating to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of methods and systems consistent with some aspects of this application as detailed in the appended claims.

[0026] The terminology used in this application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The singular forms “a,” “the,” and “the” used in this application and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used herein refers to any and all possible combinations comprising one or more of the associated listed items.

[0027] The following specific embodiments illustrate the implementation of the "hybrid power supply circuit" disclosed in this invention. Those skilled in the art can understand the advantages and effects of this invention from the content disclosed in this specification. This invention can be implemented or applied through other different specific embodiments, and various details in this specification can also be modified and changed based on different viewpoints and applications without departing from the concept of this invention. Furthermore, the accompanying drawings of this invention are for simple illustrative purposes only and are not depictions of actual dimensions; this is stated beforehand. The following embodiments will further describe the relevant technical content of this invention in detail, but the disclosed content is not intended to limit the scope of protection of this invention.

[0028] It should be understood that while terms such as "first," "second," and "third" may be used in this document to describe various components or signals, these components or signals should not be limited by these terms. These terms are primarily used to distinguish one component from another, or one signal from another. Furthermore, the term "or" as used herein should, as appropriate, include any combination of one or more of the associated listed items.

[0029] Additionally, in the following description, if it is indicated that a specific diagram is referred to or as shown in a specific diagram, it is only to emphasize that most of the relevant content in the following description appears in that specific diagram, but does not limit the following description to refer only to that specific diagram.

[0030] Example 1

[0031] Please see Figure 1 This application provides a hybrid power supply circuit 100A, which includes a primary circuit 1 and a secondary circuit 2 disposed on one side of the primary circuit 1. The structure of each component of the hybrid power supply circuit 100A will be described below, and the connection relationship between the components of the hybrid power supply circuit 100A will be explained as appropriate.

[0032] like Figure 1 As shown, the primary circuit 1 in this embodiment includes a first primary coil L11, a second primary coil L12, and a primary capacitor C13. The first primary coil L11 and the second primary coil L12 can be electrically coupled to a voltage source, and common-mode filtering and / or differential-mode filtering can be achieved through phase adjustment; that is, at least one of common-mode filtering and differential-mode filtering can be achieved. Specifically, the voltage source includes a neutral wire N and a live wire L. One end of the first primary coil L11 and one end of the second primary coil L12 are electrically coupled to each other with different phases, forming a primary tap contact TC1. The other end of the first primary coil L11 can be electrically coupled to the neutral wire N, and the other end of the second primary coil L12 can be electrically coupled to the live wire L.

[0033] In practical applications, the number of turns of the first primary coil L11 is equal to the number of turns of the second primary coil L12. Furthermore, one end of the primary capacitor C13 is electrically coupled to the primary tap contact TC1, and the other end of the primary capacitor C13 is used for grounding; however, this application is not limited to this. For example, in other embodiments not shown in this application, the primary capacitor C13 may also be omitted.

[0034] Re-reference Figure 1As shown, the secondary circuit 2 can cooperate with the primary circuit 1 to generate an induced electromotive force or an induced current, and the secondary circuit 2 includes a primary coil L21, a secondary coil L22, and a secondary capacitor C23.

[0035] In detail, the first primary coil L21 is located on one side of the first primary coil L11 and is spaced apart from it, while the second primary coil L22 is located on one side of the second primary coil L12 and is spaced apart from it. That is, the position of the first primary coil L21 corresponds to the position of the first primary coil L11, and the position of the second primary coil L22 corresponds to the position of the second primary coil L12.

[0036] In this embodiment, one end of the primary coil L21 and one end of the secondary coil L22 are electrically coupled in opposite phases, forming a secondary tap contact TC2. The other end of the primary coil L21 and the other end of the secondary coil L22 can be electrically coupled to a load (not shown in the figure). Furthermore, one end of the secondary capacitor C23 is electrically coupled to the secondary tap contact TC2, and the other end of the secondary capacitor C23 can be used to ground, but the invention is not limited thereto. For example, in other embodiments not shown, the secondary capacitor C23 may be omitted.

[0037] Preferably, the number of turns of the primary coil L21 can be equal to the number of turns of the secondary coil L22.

[0038] Accordingly, when the hybrid power supply circuit 100A receives a common-mode signal, the common-mode signal is separated into two windings (i.e., the first primary coil L11 and the second primary coil L12) by the primary tap contact TC1, which are in opposite phase. In other words, when a device (not shown) connected to the hybrid power supply circuit 100A receives an input current, the current generates equal and opposite magnetic fields, which cancel each other out. This results in the device exhibiting zero or low impedance to the common-mode signal, allowing it to be directly shorted to ground to suppress noise.

[0039] Example 2

[0040] like Figure 2 and Figure 3 As shown, this is the second embodiment of this application. The hybrid power supply circuits 100B and 100B' of this embodiment are similar to the hybrid power supply circuit 100A of the first embodiment described above. The similarities between the two embodiments will not be repeated. The differences between the hybrid power supply circuits 100B and 100B' of this embodiment and the hybrid power supply circuit 100A of the first embodiment are as follows:

[0041] The primary circuit 1 further includes an amplification primary coil L14 and an amplification filter element C15; wherein, the amplification filter element C15 can be a coil, an inductor, or a capacitor; one end of the amplification primary coil L14 is electrically coupled to the first primary coil L11 to form an amplification tap contact TC3; one end of the amplification filter element C15 is electrically coupled to the amplification tap contact TC3, and the other end of the amplification filter element C15 can be used to ground. Accordingly, the hybrid power supply circuit can further enhance the noise suppression effect.

[0042] like Figure 2 As shown, in practical applications, when the primary amplification coil L14 of the hybrid power supply circuit 100B is electrically coupled to the first primary coil L11 through the amplification tap contact TC3, the first primary coil L11 and the primary amplification coil L14 are electrically coupled to the amplification tap contact TC3 in an in-phase manner, and the first primary coil L11 is electrically coupled to the live wire L through the amplification tap contact TC3.

[0043] Accordingly, when the hybrid power supply circuit 100B receives a differential-mode signal, the differential-mode signal is separated into two in-phase windings by the amplification tap contact TC3. These two windings are the first primary coil L11 and the amplification primary coil L14. In other words, when a device (not shown) connected to the hybrid power supply circuit 100B receives input current, the current generates a magnetic field and presents a high impedance. This results in a high parallel impedance, thus preventing the differential-mode signal from being weakened and achieving the effect of enhanced noise suppression.

[0044] like Figure 3 As shown, in another practical application, when the amplification primary coil L14 of the hybrid power supply circuit 100B' is electrically coupled to the second primary coil L12 through the amplification tap contact TC3, the second primary coil L12 and the amplification primary coil L14 are electrically coupled to the amplification tap contact TC3 in a different phase manner, and the second primary coil L12 is electrically coupled to the neutral line N through the amplification tap contact TC3, thereby enhancing the noise suppression effect (as detailed in the first embodiment). It should be noted that noise in this application also refers to background noise.

[0045] In other words, when the amplification primary coil L14 is electrically coupled to a line segment with a live wire L, the amplification primary coil L14 will be connected in phase with the winding, which is the first primary coil L11. Conversely, when the amplification primary coil L14 is electrically coupled to a line segment with a neutral wire N, the amplification primary coil L14 will be connected in phase with the winding, which is the second primary coil L12. Accordingly, the amplification primary coil L14, in conjunction with the amplification filter element C15, can enhance the noise suppression effect of the hybrid power supply circuit 100B and the hybrid power supply circuit 100B' by connecting in phase or in phase.

[0046] Example 3

[0047] like Figure 4 and Figure 5 As shown, this is the third embodiment of this application. The hybrid power supply circuit 100C of this embodiment is similar to the hybrid power supply circuit 100A of the first embodiment described above. The similarities between the two embodiments will not be repeated. The main differences between the hybrid power supply circuit 100C of this embodiment and the first embodiment are as follows:

[0048] The primary circuit 1 further includes a first amplification primary coil L14A, a first amplification filter element C15A, a second amplification primary coil L14B, and a second amplification filter element C15B;

[0049] Specifically, the first amplification primary coil L14A is electrically coupled to the first primary coil L11; the first amplification filter element C15A is electrically coupled to the first primary coil L11 and the first amplification primary coil L14A; the second amplification primary coil L14B is electrically coupled to the second primary coil L12; and the second amplification filter element C15B is electrically coupled to the second primary coil L12 and the second amplification primary coil L14B.

[0050] Specifically, the first primary coil L11 and the first amplification primary coil L14A are electrically coupled in phase to the first amplification tap contact TCA, and the first primary coil L11 is electrically coupled to the live wire L through the first amplification tap contact TCA; the second primary coil L12 and the second amplification primary coil L14B are electrically coupled in phase to the second amplification tap contact TCB, and the second primary coil L12 is electrically coupled to the neutral wire N through the second amplification tap contact TCB.

[0051] Accordingly, the hybrid power supply circuit 100C can simultaneously generate high impedance for differential-mode signals and low impedance for common-mode signals, thereby achieving the effect of noise suppression.

[0052] It is worth noting that the hybrid power supply circuit 100C can also connect two auxiliary electronic components between the primary circuit 1 and the secondary circuit 2, thereby increasing the noise suppression effect.

[0053] Specifically, in this embodiment, the hybrid power supply circuit 100C also includes two auxiliary capacitors C3. One auxiliary capacitor C3 is connected between the first amplification primary coil L14A and the first amplification filter element C15A, and the other auxiliary capacitor C3 is connected between the second amplification primary coil L14B and the second amplification filter element C15B.

[0054] Accordingly, the hybrid power supply circuit 100C can measure as follows: Figure 5 The power-frequency relationship shown is in the appendix. Figure 5 In the diagram, the first line segment Sdd21 represents the differential mode signal, and the second line segment Scc21 represents the common mode signal. Figure 5 It is clear that both the differential-mode signal and the common-mode signal are attenuated to a considerable extent, i.e., signal suppression. Of course, in other embodiments not shown, omitting the two auxiliary capacitors C3 in the hybrid power supply circuit 100C achieves the same effect.

[0055] Additionally, it is worth mentioning that in other embodiments not shown in this application, the primary circuit 1 may also include an auxiliary filtering element, which may be a coil, an inductor, or a capacitor, and the auxiliary filtering element is electrically coupled to at least one of the starting and ending ends of the first primary coil L11, thereby enhancing the filtering function.

[0056] It should be noted that the above-mentioned hybrid power supply circuits 100A, 100B, 100B' and 100C are all hybrid power supply circuits. However, in order to distinguish them from the hybrid power supply circuits in other embodiments, they are named as hybrid power supply circuit 100A, hybrid power supply circuit 100B, hybrid power supply circuit 100B' and hybrid power supply circuit 100C, respectively.

[0057] In summary, the hybrid power supply circuit disclosed in this application can simultaneously possess functions such as noise suppression and energy conversion through the design of "the first primary coil and the second primary coil performing common-mode filtering and / or differential-mode filtering by adjusting their phases" and "the first primary coil and the second primary coil generating induced electromotive forces with the first primary coil and the second primary coil respectively".

[0058] 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, please refer to the relevant descriptions of other embodiments.

[0059] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A hybrid power supply circuit, characterized in that: The system includes a primary circuit and a secondary circuit. The primary circuit includes a first primary coil and a second primary coil. The first and second primary coils are electrically coupled to a voltage source. The first and second primary coils perform common-mode filtering and / or differential-mode filtering by adjusting their phases. The secondary circuit is located on one side of the primary circuit and includes a first primary coil and a second primary coil. The first and second primary coils are electrically coupled to a load. The position of the first primary coil corresponds to that of the first primary coil. The position of the second primary coil corresponds to that of the second primary coil. The first and second primary coils generate induced electromotive forces with the first and second primary coils, respectively. The first primary coil and the second primary coil are electrically coupled with different phases to form a primary tap contact; the primary circuit also includes a primary capacitor; one end of the primary capacitor is electrically coupled to the primary tap contact, and the other end is grounded; the first primary coil and the second primary coil are electrically coupled with different phases to form a secondary tap contact; the secondary circuit also includes a secondary capacitor; one end of the secondary capacitor is electrically coupled to the secondary tap contact, and the other end is grounded; The primary circuit further includes an amplification primary coil and an amplification filter element; wherein, the amplification primary coil is electrically coupled to the first primary coil or the second primary coil to form an amplification tap contact; one end of the amplification filter element is electrically coupled to the amplification tap contact, and the other end is grounded; When the amplification primary coil is electrically coupled to the first primary coil through the amplification tap contact, the first primary coil and the amplification primary coil are electrically coupled to the amplification tap contact in the same phase, and the first primary coil is electrically coupled to the live wire through the amplification tap contact; when the amplification primary coil is electrically coupled to the second primary coil through the amplification tap contact, the second primary coil and the amplification primary coil are electrically coupled to the amplification tap contact in a different phase, and the second primary coil is electrically coupled to the neutral wire through the amplification tap contact.

2. The hybrid power supply circuit according to claim 1, characterized in that: The number of turns of the first primary coil is equal to the number of turns of the second primary coil; the number of turns of the first primary coil is equal to the number of turns of the second primary coil.

3. The hybrid power supply circuit according to claim 1, characterized in that: The primary circuit further includes a first amplification primary coil, a first amplification filter element, a second amplification primary coil, and a second amplification filter element; wherein, the first amplification primary coil is electrically coupled to the first primary coil, and a first amplification tap contact is formed between the first amplification primary coil and the first primary coil; one end of the first amplification filter element is electrically coupled to the first amplification tap contact, and the other end is grounded; the second amplification primary coil is electrically coupled to the second primary coil, and a second amplification tap contact is formed between the second amplification primary coil and the second primary coil; one end of the second amplification filter element is electrically coupled to the second amplification tap contact, and the other end is grounded.

4. The hybrid power supply circuit according to claim 3, characterized in that: The first primary coil and the first amplification primary coil are electrically coupled in phase to the first amplification tap contact, and the first primary coil is electrically coupled to the voltage source through the first amplification tap contact; the second primary coil and the second amplification primary coil are electrically coupled in different phases to the second amplification tap contact, and the second primary coil is electrically coupled to the voltage source through the second amplification tap contact.

5. The hybrid power supply circuit according to claim 1, characterized in that: The primary circuit further includes an auxiliary filter element; the auxiliary filter element is electrically coupled to the starting and / or ending ends of the first primary coil.

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