High-voltage auxiliary power supply device of servo driver

Abstract

The utility model relates to a high-voltage auxiliary power supply device for a servo driver, and the device comprises a substrate which comprises a first surface and a second surface which are opposite to each other; the flyback circuit comprises a planar transformer and a flyback control circuit, the planar transformer is arranged on the substrate, and the two ends of the planar transformer protrude outwards from the first surface and the second surface respectively; the flyback control circuit is arranged on the first surface; the flyback circuit is used for inputting power supply high voltage and outputting driving voltage and control voltage; the driving voltage output circuit is arranged on the first surface, and the driving voltage output circuit is electrically connected with the flyback circuit; the control voltage output circuit is arranged on the second surface, and the control voltage output circuit is electrically connected with the flyback circuit; and the through hole is formed in the substrate, and the high-voltage auxiliary power supply device is connected with the servo driver through the through hole. The high-voltage auxiliary power supply device is small in size and can be adapted to different servo drivers, so that the miniaturization design of the servo drivers is promoted.

Description

Technical Field

[0001] The utility model mainly relates to the technical field of industrial automation, and particularly relates to a high-voltage auxiliary power supply device for a servo driver. Background Art

[0002] In the field of modern industrial automation, as the core component of motion control, the servo driver is also known as the "servo controller" or "servo amplifier", etc. The servo driver is widely used in various high-end automation devices such as industrial robots and semiconductor manufacturing equipment. With the progress of technology and the refined development of industrial production, the demand for miniaturization and precision of the processed objects is increasing day by day, which also puts forward new requirements for the miniaturized design of the servo driver.

[0003] The currently applicable power supply voltage ranges of AC servo drivers are, for example, AC220V and AC380V. The overall size of the servo driver is relatively large, which requires a large space, and there are problems such as inconvenient installation and debugging and inconvenient transportation. The core problem of the large size of the servo driver lies in the large size of the auxiliary power supply module, and the volume of the entire auxiliary power supply module generally exceeds 8.9 cubic centimeters. The traditional transformers used in the auxiliary power supply module are relatively large, and the integration degree of the power supply design such as transformers and control circuits is not high, thus failing to realize the optimal utilization of the space of the auxiliary power supply module.

[0004] For servo drivers that require a high-voltage input power supply, due to the problem of the large size of the existing auxiliary power supply module, the miniaturized design of the servo driver is restricted. Summary of the Utility Model

[0005] The technical problem to be solved by this application is to provide a high-voltage auxiliary power supply device for a servo driver, which improves the integration degree of the power supply design such as transformers and control circuits on the circuit board. The high-voltage auxiliary power supply device has a relatively small volume and can be adapted to different servo drivers, thus promoting the miniaturized design of the servo driver.

[0006] The technical solution adopted by this application to solve the above technical problem is a high-voltage auxiliary power supply device for a servo driver, including: a substrate including opposite first and second surfaces; a flyback circuit including a planar transformer and a flyback control circuit, the planar transformer is disposed on the substrate, and both ends of the planar transformer protrude outward from the first surface and the second surface respectively; the flyback control circuit is disposed on the first surface; the flyback circuit is used for inputting a high-voltage power supply, outputting a driving voltage and a control voltage; a driving voltage output circuit disposed on the first surface, the driving voltage output circuit is electrically connected to the flyback circuit; a control voltage output circuit disposed on the second surface, the control voltage output circuit is electrically connected to the flyback circuit; a through hole disposed on the substrate, and the high-voltage auxiliary power supply device is connected to the servo driver through the through hole.

[0007] In one embodiment of the present application, the high-voltage auxiliary power supply device further includes a first diode, which is disposed on the first surface and located between the planar transformer and the flyback control circuit, and the first diode is used to absorb the voltage spike of the planar transformer.

[0008] In one embodiment of the present application, the high-voltage auxiliary power supply device further includes a second diode, which is disposed on the first surface and located between the planar transformer and the drive voltage output circuit, and the second diode is used to rectify the drive voltage output by the planar transformer.

[0009] In one embodiment of the present application, the high-voltage auxiliary power supply device further includes a third diode, which is disposed on the second surface and located between the planar transformer and the control voltage output circuit, and the third diode is used to rectify the control voltage output by the planar transformer.

[0010] In one embodiment of the present application, the high-voltage auxiliary power supply device further includes a capacitor, which is disposed on the second surface and located between the third diode and the control voltage output circuit, and the capacitor is used to store energy for the control voltage rectified by the third diode.

[0011] In one embodiment of the present application, the first surface includes an opposite first distal end and a second distal end, the flyback control circuit is disposed at the first distal end, and the drive voltage output circuit is disposed at the second distal end.

[0012] In one embodiment of the present application, the flyback control circuit includes a high-voltage area flyback control circuit and a low-voltage area flyback control circuit. The high-voltage area flyback control circuit includes a power high-voltage input terminal and a drive voltage output terminal, and the low-voltage area flyback control circuit includes a control voltage output terminal; the planar transformer includes a first winding coil, a second winding coil, and a third winding coil. The first winding coil is electrically connected to the power high-voltage input terminal, the second winding coil is electrically connected to the drive voltage output terminal, and the third winding coil is electrically connected to the control voltage output terminal.

[0013] In one embodiment of the present application, the planar transformer further includes a first PCB layer, a second PCB layer, and a third PCB layer that are insulated from each other. The first winding coil is disposed on the first PCB layer, the second winding coil is disposed on the second PCB layer, and the third winding coil is disposed on the third PCB layer.

[0014] In one embodiment of the present application, the planar transformer further includes a magnetic core and a semi-enclosed housing. Magnetic core mounting holes are provided on the first PCB layer, the second PCB layer, and the third PCB layer. The magnetic core passes through the magnetic core mounting holes and both ends of the magnetic core protrude outward from the first surface and the second surface respectively; the housing is used to protect the magnetic core.

[0015] In an embodiment of the present application, the volume of the high-voltage auxiliary power supply device is less than or equal to 1.5 cubic centimeters.

[0016] The technical solution of the present application modularizes the power supply design on the circuit board, improves the integration of the power supply, and enables the reuse of the high-voltage auxiliary power supply device in different servo drivers. By designing the planar transformer to protrude outward from the surface of the substrate at both ends, the three-dimensional space is effectively utilized, which helps to disperse heat. While maintaining the functional integrity of the entire high-voltage auxiliary power supply device, the space on the substrate is saved, achieving miniaturization of the volume. By separately arranging the flyback control circuit, drive voltage output circuit, and control voltage output circuit on different surfaces of the substrate, the electromagnetic interference between the circuit modules is reduced, ensuring the stable output of the control voltage and drive voltage, and improving the control accuracy of the servo driver. The through holes on the substrate facilitate welding or plug-in connection of the high-voltage auxiliary power supply device to the servo driver, meeting the requirements of different application scenarios and increasing the versatility of the high-voltage auxiliary power supply device.

[0017] The present application is equivalent to the design of a miniaturized high-voltage auxiliary power supply module for an AC servo driver. The present application improves the integration of power supply designs such as planar transformers and control circuits on the circuit board. The high-voltage auxiliary power supply device has a small volume, less than 1.5 cubic centimeters, which can save 83% of the assembly space and can be adapted to different servo drivers, thereby promoting the miniaturized design of the servo driver. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] To make the above objects, features, and advantages of the present application more obvious and understandable, the following detailed description of the specific embodiments of the present application is provided in conjunction with the accompanying drawings, where:

[0019] Figure 1 is a schematic top view of the high-voltage auxiliary power supply device of the servo driver according to an embodiment of the present application;

[0020] Figure 2 is a schematic bottom view of the high-voltage auxiliary power supply device of the servo driver according to an embodiment of the present application;

[0021] Figure 3 is a schematic diagram of the flyback circuit according to an embodiment of the present application;

[0022] Figure 4 is a schematic diagram of the planar transformer according to an embodiment of the present application.

[0023] Explanation of the reference numerals in the specific embodiments:

[0024] 100. High-voltage auxiliary power supply device; 110. Substrate; 111. First surface; 1111. First distal end; 1112. Second distal end; 112. Second surface; 120. Planar transformer; 121. First PCB layer; 1211. First winding coil; 122. Second PCB layer; 1221. Second winding coil; 123. Third PCB layer; 1231. Third winding coil; 124. Magnetic core; 125. Magnetic core mounting hole; 126. Outer shell; 130. Flyback control circuit; 131. High-voltage area flyback control circuit; 1311. Power high-voltage input terminal; 1312. Drive voltage output terminal; 132. Low-voltage area flyback control circuit; 1321. Control voltage output terminal; 140. Drive voltage output circuit; 150. Control voltage output circuit; 160. Through hole; 171. First diode; 172. Second diode; 173. Third diode; 180. Capacitor; 190. Insulating layer. Detailed implementation manners

[0025] To make the above objects, features and advantages of the present application more obvious and understandable, the following detailed description of the specific implementation manners of the present application will be given in conjunction with the accompanying drawings.

[0026] In the following description, many specific details are set forth in order to fully understand the present application, but the present application may also be implemented in other ways different from those described herein, so the present application is not limited by the specific embodiments disclosed below.

[0027] As shown in the present application and the claims, unless the context clearly indicates an exception, words such as "a", "an", "one" and / or "the" are not specifically singular and may also include plural. Generally speaking, the terms "including" and "comprising" only indicate the inclusion of the steps and elements that have been clearly identified, and these steps and elements do not constitute an exclusive list. The method or device may also include other steps or elements.

[0028] In the description of the present application, it should be understood that the orientation or positional relationship indicated by orientation words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" is usually based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present application and simplifying the description. Without contrary instructions, these orientation words do not indicate and imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, so it cannot be understood as a limitation on the protection scope of the present application; the orientation words "inside, outside" refer to the inside and outside relative to the contour of each component itself.

[0029] For ease of description, spatial relative terms such as "above", "over", "on the upper surface", "upper", etc. can be used here to describe the spatial positional relationship of a device or feature shown in the figure with other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation other than the orientation depicted in the figure for the device. For example, if the device in the drawing is inverted, a device described as "above" or "over" other devices or structures will then be positioned "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both the orientations of "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and corresponding interpretations are made for the spatial relative descriptions used here.

[0030] In addition, it should be noted that the use of terms such as "first", "second", etc. to limit components is merely for the convenience of differentiating the corresponding components. Without additional statements, the above terms have no special meanings, and thus should not be construed as limiting the scope of protection of this application. Moreover, although the terms used in this application are selected from well-known and commonly used terms, some of the terms mentioned in the specification of this application may be chosen by the applicant according to his or her judgment, and their detailed meanings are described in the relevant parts of the description herein. In addition, it is required to understand this application not only through the actual terms used, but also through the meanings implied by each term.

[0031] Hereinafter, embodiments of the present application will be described based on the drawings. However, the embodiments shown below are examples of the high-voltage auxiliary power supply device of the servo drive for embodying the technical idea of the present application, and the high-voltage auxiliary power supply device of the servo drive of the present application is not specifically limited to the following content. Furthermore, this specification assigns the numbers corresponding to the components shown in the embodiments to the components shown in the "claims" and "application content" columns in order to easily understand the scope of the claims. However, by no means is the component shown in the claims specified as the component of the embodiment. In particular, for the dimensions, materials, shapes, and relative configurations, etc. of the constituent components described in the embodiments, without specific records, the intention is not to limit the scope of the present application only thereto, but merely for illustrative purposes.

[0032] However, the dimensions, positional relationships, etc. of the components shown in the respective drawings are sometimes exaggerated for the sake of clear explanation. Furthermore, in the following description, for the same names and symbols, components that are the same or of the same nature are appropriately described in detail. Furthermore, each element constituting the present application may be configured such that a plurality of elements are formed of the same component, so that one component serves multiple elements, and conversely, the function of one component may be shared by a plurality of components. In addition, the content described in some embodiments and implementation manners can also be applied to other embodiments, implementation manners, etc. In addition, in this specification, "above" is not limited to the case where it is formed in contact with the upper surface, but also includes the case where it is formed separately above, and is also used in the sense that there is an intervening layer between layers.

[0033] The present application provides a high-voltage auxiliary power supply device for a servo driver, which can be applied to a servo driver that requires a high-voltage input power supply and has a miniaturization design requirement.

[0034] Figure 1 It is a schematic top view of the high-voltage auxiliary power supply device of a servo driver according to an embodiment of the present application. Figure 2 It is a schematic bottom view of the high-voltage auxiliary power supply device of a servo driver according to an embodiment of the present application. Refer to Figure 1 and Figure 2 As shown in, the high-voltage auxiliary power supply device 100 of the servo driver in this embodiment includes: a substrate 110 including opposite first surface 111 and second surface 112; a flyback circuit including a planar transformer 120 and a flyback control circuit 130, the planar transformer 120 is disposed on the substrate 110, and both ends of the planar transformer 120 protrude outward from the first surface 111 and the second surface 112 respectively; the flyback control circuit 130 is disposed on the first surface 111; the flyback circuit is used for inputting a high-voltage power supply, outputting a driving voltage and a control voltage.

[0035] Continuing to refer to Figure 1 and Figure 2 As shown in, the high-voltage auxiliary power supply device 100 further includes a driving voltage output circuit 140 disposed on the first surface 111, the driving voltage output circuit 140 is electrically connected to the flyback circuit; a control voltage output circuit 150 disposed on the second surface 112, the control voltage output circuit 150 is electrically connected to the flyback circuit; a via hole 160 disposed on the substrate 110, and the high-voltage auxiliary power supply device 100 is connected to a servo driver (not shown) through the via hole 160. In some embodiments, the volume of the high-voltage auxiliary power supply device 100 is less than or equal to 1.5 cubic centimeters.

[0036] Exemplarily, the high voltage of the power supply input to the flyback circuit can be greater than or equal to 150V (volts). The high-voltage auxiliary power supply device 100 can be welded and fixed in the servo driver through the through-hole 160. The substrate 110 can be a PCB (Printed Circuit Board) board. A plurality of through-holes 160 can be provided on the substrate 110. The plurality of through-holes 160 can be distributed on one side of the substrate 110 or irregularly distributed. The present application does not limit the number and distribution mode of the through-holes 160. Components such as capacitors 180 and resistors (not shown) can be provided around the drive voltage output circuit 140 and the control voltage output circuit 150. Such an arrangement can enable the high-voltage auxiliary power supply device 100 to have functions of filtering, stabilizing voltage, energy storage, current limiting, voltage division, and protecting the circuit, thereby improving the control accuracy of the servo driver.

[0037] The technical solution of the present application modularizes the power supply design on the circuit board, improves the integration degree of the power supply, and enables the high-voltage auxiliary power supply device 100 to be reused in different servo drivers. By designing the planar transformer 120 to protrude outward from the surface of the substrate 110 at both ends, the three-dimensional space is effectively utilized, which helps to disperse heat. While maintaining the functional integrity of the entire high-voltage auxiliary power supply device 100, the space on the substrate 110 is saved, and the miniaturization of the volume is realized; by respectively arranging the flyback control circuit 130, the drive voltage output circuit 140, and the control voltage output circuit 150 on different surfaces of the substrate 110, the electromagnetic interference between the circuit modules is reduced, the stable output of the control voltage and the drive voltage is ensured, and the control accuracy of the servo driver can be improved; through the through-hole 160 on the substrate 110, it is convenient to weld or plug-connect the high-voltage auxiliary power supply device 100 to the servo driver, which can meet the requirements of different application scenarios and increase the versatility of the high-voltage auxiliary power supply device 100.

[0038] The present application is equivalent to the design of a miniaturized high-voltage auxiliary power supply module for an AC servo driver. The present application improves the integration degree of the power supply design such as the planar transformer 120 and the control circuit on the circuit board. The high-voltage auxiliary power supply device 100 is small in volume, with a volume less than 1.5 cubic centimeters, which can save 83% of the assembly space and can be adapted to different servo drivers, thereby promoting the miniaturized design of the servo driver.

[0039] Reference Figure 1As shown, in some embodiments, the high-voltage auxiliary power supply device 100 further includes a first diode 171. The first diode 171 is disposed on the first surface 111 and is located between the planar transformer 120 and the flyback control circuit 130. The first diode 171 is used to absorb the voltage spikes of the planar transformer 120. Exemplarily, such an arrangement in the present application can enhance the stability and reliability of the circuit, reduce the risk of component damage that may be caused by voltage spikes, and thus extend the service life of the high-voltage auxiliary power supply device 100.

[0040] Exemplarily, when it is said in the present application that a circuit component is located between two other circuit components, "located" can mean the set position seen from the drawings or that the components are connected by circuits. For example, it can be seen from Figure 1 that the first diode 171 is located between the planar transformer 120 and the flyback control circuit 130. In practical applications, the first diode 171 can be located near the planar transformer 120 and the flyback control circuit 130 as long as the first diode 171 is electrically connected to the planar transformer 120 and the flyback control circuit 130.

[0041] In some embodiments, the high-voltage auxiliary power supply device 100 further includes a second diode 172. The second diode 172 is disposed on the first surface 111 and is located between the planar transformer 120 and the drive voltage output circuit 140. The second diode 172 is used to rectify the drive voltage output by the planar transformer 120. Exemplarily, such an arrangement in the present application can reduce voltage fluctuations and harmonic interference, thereby ensuring the stability of the drive voltage. In practical applications, the breakdown voltage value of the second diode 172 can be higher than that of the first diode 171.

[0042] Referring to Figure 2 As shown, in some embodiments, the high-voltage auxiliary power supply device 100 further includes a third diode 173. The third diode 173 is disposed on the second surface 112 and is located between the planar transformer 120 and the control voltage output circuit 150. The third diode 173 is used to rectify the control voltage output by the planar transformer 120. Exemplarily, such an arrangement in the present application can reduce voltage fluctuations and noise, ensure the stability of the control voltage, and thus improve the response speed and accuracy of the servo drive.

[0043] In some embodiments, the high-voltage auxiliary power supply device 100 further includes a capacitor 180. The capacitor 180 is disposed on the second surface 112 and located between the third diode 173 and the control voltage output circuit 150. The capacitor 180 is used to store the energy of the control voltage rectified by the third diode 173. Exemplarily, with such an arrangement in the present application, the fluctuation of the control voltage can be smoothed, ensuring that the control voltage can be supplied to the control voltage output circuit 150 quickly and stably when needed, and improving the overall performance and dynamic response speed of the servo driver.

[0044] Refer to Figure 1 As shown, in some embodiments, the first surface 111 includes an opposite first distal end 1111 and a second distal end 1112. The flyback control circuit 130 is disposed at the first distal end 1111, and the drive voltage output circuit 140 is disposed at the second distal end 1112. Exemplarily, with such an arrangement in the present application, the distance between the flyback control circuit 130 and the drive voltage output circuit 140 can be increased, reducing the electromagnetic interference between the two, improving the anti-interference ability of the circuit, and ensuring the stable output of the drive voltage.

[0045] Figure 3 is a schematic diagram of a flyback circuit in an embodiment of the present application. Refer to Figure 1 and Figure 3 As shown, in some embodiments, the flyback control circuit 130 includes a high-voltage area flyback control circuit 131 and a low-voltage area flyback control circuit 132. The high-voltage area flyback control circuit 131 includes a power high-voltage input terminal 1311 and a drive voltage output terminal 1312. The low-voltage area flyback control circuit 132 includes a control voltage output terminal 1321. The planar transformer 120 includes a first winding coil 1211, a second winding coil 1221, and a third winding coil 1231. The first winding coil 1211 is electrically connected to the power high-voltage input terminal 1311, the second winding coil 1221 is electrically connected to the drive voltage output terminal 1312, and the third winding coil 1231 is electrically connected to the control voltage output terminal 1321.

[0046] Exemplarily, the power high voltage input to the power high-voltage input terminal 1311 can be greater than or equal to 100V (volts), for example, the voltage range can be DC100V to DC800V. By dividing the flyback control circuit 130 into a high-voltage area and a low-voltage area and combining the multi-winding design of the planar transformer 120, the present application realizes an efficient, isolated, and compact flyback circuit design, which can prevent electrical interference between high and low voltages and improve the overall performance of the servo driver.

[0047] Figure 4 is a schematic diagram of a planar transformer in an embodiment of the present application. Refer to Figure 4As shown, in some embodiments, the planar transformer 120 further includes a first PCB layer 121, a second PCB layer 122, and a third PCB layer 123 that are insulated from each other. The first winding coil 1211 is disposed on the first PCB layer 121, the second winding coil 1221 is disposed on the second PCB layer 122, and the third winding coil 1231 is disposed on the third PCB layer 123. Exemplarily, the PCB layers can be insulated from each other through an insulating layer 190. This layered layout design of the present application can prevent electromagnetic interference and short - circuit risks between the winding coils, and also optimizes space utilization, making the entire transformer structure more compact and lightweight.

[0048] In some embodiments, the planar transformer 120 further includes a magnetic core 124 and a semi - enclosed housing 126. Core mounting holes 125 are provided on the first PCB layer 121, the second PCB layer 122, and the third PCB layer 123. The magnetic core 124 passes through the core mounting holes 125 and both ends of the magnetic core 124 protrude outward from the first surface 111 and the second surface 112 respectively; the housing 126 is used to protect the magnetic core 124. Exemplarily, such an arrangement in the present application can enhance the magnetic coupling efficiency of the planar transformer 120 and facilitate heat dissipation. Through the protection of the housing 126, the influence of the external environment on the magnetic core 124 can be effectively isolated, improving the stability of the planar transformer 120 and the reliability of the servo driver.

[0049] Although various examples are discussed in the above disclosure to illustrate some currently useful utility model embodiments, it should be understood that such details are for illustrative purposes only. The appended claims are not limited to the disclosed embodiments. On the contrary, the claims are intended to cover all modifications and equivalent combinations that conform to the essence and scope of the embodiments of the present application. For example, although the system components described above can be implemented by hardware devices, they can also be implemented only through a software solution, such as installing the described system on an existing server or mobile device.

[0050] Similarly, it should be noted that, in order to simplify the presentation of the disclosure of the present application and thus help the understanding of one or more utility model embodiments, in the foregoing description of the embodiments of the present application, multiple features are sometimes merged into one embodiment, drawing, or description thereof. However, this disclosure method does not mean that the features required by the subject matter of the present application are more than those mentioned in the claims. In fact, the features of the embodiments are fewer than all the features of the single embodiments disclosed above.

[0051] In some embodiments, numbers are used to describe components and the quantity of attributes. It should be understood that such numbers used in the description of embodiments are modified by the modifiers "about", "approximately" or "substantially" in some examples. Unless otherwise stated, "about", "approximately" or "substantially" indicate that the said numbers allow a variation of ±20%. Accordingly, in some embodiments, the numerical parameters used in the specification and claims are approximate values, which may vary according to the characteristics required by individual embodiments. In some embodiments, the numerical parameters should consider the specified significant digits and adopt the method of retaining general digits. Although the numerical ranges and parameters used in some embodiments of the present application to confirm the breadth of their scope are approximate values, in specific embodiments, such numerical settings are made as precise as possible within the feasible range.

[0052] Although the present application has been described with reference to the current specific embodiments, those of ordinary skill in the art should recognize that the above embodiments are only used to illustrate the present application, and various equivalent changes or substitutions can be made without departing from the spirit of the present application. Therefore, as long as the changes and modifications to the above embodiments are within the scope of the spirit of the present application, they will fall within the scope of the claims of the present application.

Claims

1. A high-voltage auxiliary power supply device for a servo driver, characterized in that, Comprising: A substrate, including opposite first and second surfaces; A flyback circuit, including a planar transformer and a flyback control circuit. The planar transformer is disposed on the substrate, and two ends of the planar transformer protrude outward from the first surface and the second surface respectively; the flyback control circuit is disposed on the first surface; the flyback circuit is used for inputting a high-voltage power supply, outputting a driving voltage and a control voltage; A driving voltage output circuit, disposed on the first surface, and the driving voltage output circuit is electrically connected to the flyback circuit; A control voltage output circuit, disposed on the second surface, and the control voltage output circuit is electrically connected to the flyback circuit; A through hole, disposed on the substrate, and the high-voltage auxiliary power supply device is connected to the servo driver through the through hole.

2. The high-voltage auxiliary power supply device according to claim 1, wherein It further includes a first diode, the first diode is disposed on the first surface and between the planar transformer and the flyback control circuit, and the first diode is used for absorbing the voltage spike of the planar transformer.

3. The high-voltage auxiliary power supply device according to claim 1, characterized in that, It further includes a second diode, the second diode is disposed on the first surface and between the planar transformer and the driving voltage output circuit, and the second diode is used for rectifying the driving voltage output by the planar transformer.

4. The high-voltage auxiliary power supply device according to claim 1, characterized in that, It further includes a third diode, the third diode is disposed on the second surface and between the planar transformer and the control voltage output circuit, and the third diode is used for rectifying the control voltage output by the planar transformer.

5. The high-voltage auxiliary power supply device according to claim 4, wherein It further includes a capacitor, the capacitor is disposed on the second surface and between the third diode and the control voltage output circuit, and the capacitor is used for storing energy of the control voltage rectified by the third diode.

6. The high-voltage auxiliary power supply device according to claim 1, characterized in that, The first surface includes opposite first and second distal ends, the flyback control circuit is disposed on the first distal end, and the driving voltage output circuit is disposed on the second distal end.

7. The high-voltage auxiliary power supply device according to claim 1, characterized in that, The flyback control circuit includes a high-voltage area flyback control circuit and a low-voltage area flyback control circuit. The high-voltage area flyback control circuit includes a power high-voltage input end and a driving voltage output end, and the low-voltage area flyback control circuit includes a control voltage output end; the planar transformer includes a first winding coil, a second winding coil, and a third winding coil. The first winding coil is electrically connected to the power high-voltage input end, the second winding coil is electrically connected to the driving voltage output end, and the third winding coil is electrically connected to the control voltage output end.

8. The high-voltage auxiliary power supply device according to claim 7, wherein The planar transformer further includes mutually insulated first, second, and third PCB layers. The first winding coil is disposed on the first PCB layer, the second winding coil is disposed on the second PCB layer, and the third winding coil is disposed on the third PCB layer.

9. The high-voltage auxiliary power supply device according to claim 8, characterized in that The planar transformer further includes a magnetic core and a semi-enclosed housing. Magnetic core mounting holes are provided on the first PCB layer, the second PCB layer, and the third PCB layer. The magnetic core penetrates through the magnetic core mounting holes and two ends of the magnetic core protrude outward from the first surface and the second surface respectively; the housing is used for protecting the magnetic core.

10. The high-voltage auxiliary power supply device according to claim 1, characterized in that, The volume of the high-voltage auxiliary power supply device is less than or equal to 1.5 cubic centimeters.

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