阅读说明：本技术 电源方法、装置、电源及电子设备 (Power supply method and device, power supply and electronic equipment ) 是由 安小东 王新 于 2019-11-28 设计创作，主要内容包括：本申请的实施例提供了一种电源控制方法、装置、电源及电子设备。该电源控制方法包括：检测交流脉冲电源输出的能量待重叠的时段；在所述时段中,使所述交流脉冲电源中逆变器的脉宽调制开通到预设值,以使所述交流脉冲电源中的变压器的辅助绕组释放能量；在所述时段结束时,控制所述辅助绕组停止释放能量。本申请实施例的技术方案通过控制变压器的辅助绕组释能量,以维持交流脉冲电源的稳定,提高了交流脉冲电源控制的效率和效果。(The embodiment of the application provides a power supply control method and device, a power supply and electronic equipment. The power supply control method comprises the following steps: detecting a time interval in which energy output by an alternating current pulse power supply is to be overlapped; in the time period, enabling pulse width modulation of an inverter in the alternating current pulse power supply to a preset value so as to enable an auxiliary winding of a transformer in the alternating current pulse power supply to release energy; controlling the auxiliary winding to stop releasing energy at the end of the period. According to the technical scheme of the embodiment of the application, the energy release of the auxiliary winding of the transformer is controlled to maintain the stability of the alternating current pulse power supply, and the efficiency and the effect of controlling the alternating current pulse power supply are improved.)

1. A power supply control method, comprising:

detecting a period of time during which energy output by an ac pulsed power supply is to be overlapped, the overlap representing a process of balancing the energy output by the ac pulsed power supply by releasing remaining energy;

in the time period, enabling pulse width modulation of an inverter in the alternating current pulse power supply to a preset value so as to enable an auxiliary winding of a transformer in the alternating current pulse power supply to release energy;

controlling the auxiliary winding to stop releasing energy at the end of the period.

2. The method of claim 1, wherein turning on pulse width modulation of an inverter in the ac pulsed power supply to a preset value to cause an auxiliary winding of a transformer in the ac pulsed power supply to discharge energy comprises:

and switching on the pulse width modulation of an inverter of the alternating current pulse power supply to the preset value, and closing an overlapping switch connected with the auxiliary winding in series so as to maintain sufficient overlapping energy output when the auxiliary winding provides energy for secondary commutation.

3. The method of claim 2, wherein turning on pulse width modulation of an inverter of the ac pulsed power source to the preset value and closing an overlap switch in series with the auxiliary winding to maintain sufficient overlap energy output while the auxiliary winding energizes a secondary commutation, comprises:

and in a negative phase overlapping period when the output current of the alternating current pulse power supply is to be overlapped in a negative phase, the pulse width modulation is switched on to the preset value, and the overlapping switch is closed, so that sufficient overlapping energy output is maintained when the auxiliary winding supplies energy for secondary commutation.

4. The method of claim 3, wherein controlling the auxiliary winding to stop releasing energy at the end of the period comprises:

and at the end of the time period, the overlap switch is switched off, the auxiliary winding is controlled to stop releasing energy, and the negative phase overlap process is ended.

5. A power supply comprising an inverter, a transformer, and an overlapping element connected in parallel with the transformer, the overlapping element comprising an auxiliary winding of the transformer, wherein,

the inverter is used for controlling pulse width modulation to be switched on to a preset value when detecting that the energy output by the alternating current pulse power supply is to be overlapped, so that sufficient overlapped energy output is maintained when the auxiliary winding provides energy for secondary commutation.

6. The method of claim 5, wherein the overlap unit comprises an overlap switch connected in parallel with the auxiliary winding, and the overlap switch is used for controlling the auxiliary winding to release energy when the pulse width modulation of the inverter is switched on to the preset value.

Technical Field

The present application relates to the field of computer and communication technologies, and in particular, to a power control method and apparatus, a power supply, and an electronic device.

Background

In the electric machining industry, electrochemical machining using an ac pulse power supply is generally used for machining a workpiece with high hardness in combination with electric discharge machining efficiency and improvement, such as an ac pulse welding process, by dissolving an anode electrode for removal machining. However, when the phase of the ac pulse power supply is changed at the secondary stage, that is, when the output changes from the positive phase to the negative phase or from the negative phase to the positive phase, the arc cannot be continuously and stably output, and thus the arc breakage is likely to occur. Generally, a single power supply, such as an independent switching power supply, a control transformer, etc., is used as an overlapped power supply, but this approach easily results in a large power supply, high cost, and complicated power supply control.

Disclosure of Invention

The embodiment of the application provides a power supply control method and device, a power supply and electronic equipment, so that the stability of an alternating current pulse power supply can be maintained at least to a certain extent, and the efficiency and the effect of controlling the alternating current pulse power supply are improved.

Other features and advantages of the present application will be apparent from the following detailed description, or may be learned by practice of the application.

According to an aspect of an embodiment of the present application, there is provided a power supply control method including: detecting a period of time during which energy output by an ac pulsed power supply is to be overlapped, the overlap representing a process of balancing the energy output by the ac pulsed power supply by releasing remaining energy; in the time period, enabling pulse width modulation of an inverter in the alternating current pulse power supply to a preset value so as to enable an auxiliary winding of a transformer in the alternating current pulse power supply to release energy; controlling the auxiliary winding to stop releasing energy at the end of the period.

According to an aspect of an embodiment of the present application, there is provided a power supply control apparatus including: a first detection unit for detecting a period during which energy output by an ac pulse power supply is to be overlapped, the overlap representing a process of balancing the energy output by the ac pulse power supply by discharging remaining energy; the first control unit is used for enabling pulse width modulation of an inverter in the alternating current pulse power supply to be switched on to a preset value in the time interval so as to enable an auxiliary winding of a transformer in the alternating current pulse power supply to release energy; a second control unit for controlling the auxiliary winding to stop releasing energy at the end of the time period.

In one exemplary embodiment, the first control unit includes: and the third control unit is used for switching on the pulse width modulation of the inverter of the alternating current pulse power supply to a preset value and closing an overlapping switch connected with the auxiliary winding in series so as to maintain sufficient overlapping energy output when the auxiliary winding provides energy for secondary commutation.

In one exemplary embodiment, the third control unit includes: and in a negative phase overlapping period when the output current of the alternating current pulse power supply is to be overlapped in a negative phase, the pulse width modulation is switched on to a preset value, and the overlapping switch is closed, so that sufficient overlapping energy output is maintained when the auxiliary winding provides energy for secondary phase commutation.

In one exemplary embodiment, the second control unit includes: and at the end of the time period, the overlap switch is switched off, the auxiliary winding is controlled to stop releasing energy, and the negative phase overlap process is ended.

In one exemplary embodiment, the third control unit includes: and in a positive phase overlapping period when the output current of the alternating current pulse power supply is to be overlapped in a positive phase, switching on the pulse width modulation to a preset value, and closing the overlapping switch so as to maintain sufficient overlapping energy output when the auxiliary winding provides energy for secondary phase commutation.

In one exemplary embodiment, the second control unit includes: and at the end of the time period, the overlap switch is switched off, the auxiliary winding is controlled to stop releasing energy, and the positive phase overlap process is ended.

According to an aspect of the embodiments of the present application, there is provided a power supply including an inverter, a transformer, and an overlapping unit connected in parallel with the transformer, the overlapping unit including an auxiliary winding of the transformer therein, wherein,

the inverter is used for controlling pulse width modulation to be switched on to a preset value when detecting that the energy output by the alternating current pulse power supply is to be overlapped, so that sufficient overlapped energy output is maintained when the auxiliary winding provides energy for secondary commutation.

In an exemplary embodiment, the overlapping unit includes an overlapping switch connected in parallel with the auxiliary winding, and the overlapping switch is used for controlling the auxiliary winding to release energy when the pulse width modulation of the inverter is switched on to a preset value.

According to an aspect of embodiments of the present application, there is provided a computer-readable medium on which a computer program is stored, the computer program, when executed by a processor, implementing the power supply control method as described in the above embodiments.

According to an aspect of an embodiment of the present application, there is provided an electronic device including: one or more processors; a storage device for storing one or more programs which, when executed by the one or more processors, cause the one or more processors to implement the power control method as described in the above embodiments.

In the technical scheme provided by some embodiments of the application, the time interval in which the energy output by the alternating current pulse power supply is to be overlapped is detected; in the time period, enabling pulse width modulation of an inverter in the alternating current pulse power supply to a preset value so as to enable an auxiliary winding of a transformer in the alternating current pulse power supply to release energy; controlling the auxiliary winding to stop releasing energy at the end of the period. According to the technical scheme of the embodiment of the application, the energy release of the auxiliary winding of the transformer is controlled to maintain the stability of the alternating current pulse power supply, and the efficiency and the effect of controlling the alternating current pulse power supply are improved.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and together with the description, serve to explain the principles of the application. It is obvious that the drawings in the following description are only some embodiments of the application, and that for a person skilled in the art, other drawings can be derived from them without inventive effort. In the drawings:

FIG. 1 schematically illustrates a flow diagram of a power control method according to an embodiment of the present application;

FIG. 2 schematically shows a flow diagram of a power control process according to an embodiment of the present application;

FIG. 3 schematically shows a flow diagram of a power control process according to an embodiment of the present application;

FIG. 4 schematically shows a timing diagram of a power supply control method according to an embodiment of the present application;

FIG. 5 schematically illustrates a block diagram of a power control apparatus according to an embodiment of the present application;

fig. 6 schematically shows a circuit diagram of a power supply according to an embodiment of the application.

Detailed Description

Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many different forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art.

Furthermore, the described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. In the following description, numerous specific details are provided to give a thorough understanding of embodiments of the application. One skilled in the relevant art will recognize, however, that the subject matter of the present application can be practiced without one or more of the specific details, or with other methods, components, devices, steps, and so forth. In other instances, well-known methods, devices, implementations, or operations have not been shown or described in detail to avoid obscuring aspects of the application.

The block diagrams shown in the figures are functional entities only and do not necessarily correspond to physically separate entities. I.e. these functional entities may be implemented in the form of software, or in one or more hardware modules or integrated circuits, or in different networks and/or processor means and/or microcontroller means.

The flow charts shown in the drawings are merely illustrative and do not necessarily include all of the contents and operations/steps, nor do they necessarily have to be performed in the order described. For example, some operations/steps may be decomposed, and some operations/steps may be combined or partially combined, so that the actual execution sequence may be changed according to the actual situation.

The implementation details of the technical solution of the embodiment of the present application are set forth in detail below:

fig. 1 shows a flow chart of a power supply control method according to an embodiment of the present application. Referring to fig. 1, the power control method at least includes steps S101 to S103, which are described in detail as follows:

in step S101, a period in which energy output by the ac pulse power supply is to overlap, which represents a process of balancing the energy output by the ac pulse power supply by discharging the remaining energy, is detected.

In practical application, the alternating current pulse power supply comprises a single positive pulse power supply and a double positive and negative pulse power supply, and the on-time width of a positive pulse and the on-time width of a negative pulse can be respectively adjusted in one pulse period through a modulation technology. In the working process of the pulse power supply, the primary energy source has enough energy through slow energy storage; then the intermediate energy storage and pulse shaping system is charged, namely energy flows in, and finally the energy is quickly discharged to a load after some complex processes of storage, compression, pulse formation or conversion and the like.

Based on the working principle of a pulse power supply, in the electric machining industry, the electrochemical machining is used for dissolving the removal machining of the anode electrode, is generally used for machining workpieces with higher hardness, and is matched with the electric spark machining efficiency to greatly improve the machining efficiency.

The power supply control method in the implementation can be applied to the electric welding machine, the technical development of the electric welding machine is rapid, the digital control era is fully entered at present, and the content in the embodiment is one of the pulse welding waveform control of the digital welding machine, and the method can be applied to the consumable electrode electric arc welding.

In the power supply control method of the embodiment, a period in which the energy of the ac pulse power supply is to be overlapped is detected. Specifically, when a dc bias current flows through an inductor in the power supply during the operation of the ac pulse power supply, the magnetic saturation state of the magnetic material is approached, so that the magnetic permeability is decreased, and the inductance value is decreased, thereby causing energy superposition. Therefore, in the present embodiment, the first time to be overlapped may be determined by monitoring the power of the power source, or the time period may be determined by monitoring the current, for example, by determining the time period corresponding to different current values according to the historical data, detecting the current value, and determining whether the current value reaches the time period. So that during this period, the current or the energy of the circuit is adjusted to balance the energy output by the AC pulse power supply by releasing the rest of the energy.

It should be noted that, in this embodiment, the energy of the ac pulse power source can be represented by a current, and the larger the current is, the larger the energy of the ac pulse power source is. Therefore, the time periods in which the energy is to be overlapped can be determined according to the current peak value or the current base value of the current, and the time periods corresponding to different current peak values or different current base values are different by testing historical current data. Wherein, the current peak value is used for representing the maximum value of the current, and the current base value is used for representing the minimum value of the current.

In step S102, in the time period, the pulse width modulation of the inverter in the ac pulse power supply is turned on to a preset value, so that the auxiliary winding of the transformer in the ac pulse power supply releases energy.

After the time period that the energy is to be overlapped is determined, in the time period, the pulse width modulation of an inverter in the alternating current pulse power supply is switched on to a preset value, and an auxiliary winding of a transformer in the alternating current pulse power supply is controlled to release energy, so that the energy released by the auxiliary winding maintains the stability of the power supply output energy.

Further, in order to ensure that there is enough energy reserve when the auxiliary winding releases energy, in this embodiment, the pulse width modulation of the inverter in the ac pulse power supply may be turned on to the maximum to provide enough energy for the auxiliary winding, and the energy released by the auxiliary winding maintains the stability of the power output energy.

Further, step S102 includes step S1021, which is described in detail as follows:

and switching on the pulse width modulation of an inverter of the alternating current pulse power supply to a preset value, and closing an overlapping switch connected with the auxiliary winding in series so as to maintain sufficient overlapping energy output when the auxiliary winding provides energy for secondary commutation.

Wherein, step S1021 specifically includes: s1022, in a negative phase overlapping period in which the output current of the ac pulse power supply is to be overlapped in the negative phase, turning on the pulse width modulation to a preset value, and closing the overlap switch, so as to maintain sufficient overlap energy output when the auxiliary winding supplies energy for the secondary commutation.

In the embodiment, the transformer for the alternating current pulse power supply is provided with the overlapping unit, and the overlapping unit comprises the auxiliary winding and the overlapping switch. The negative phase overlapping period of the present embodiment represents a period in which the output current of the ac pulse power supply is to be overlapped in the negative phase, and in the negative phase overlapping period, the overlap switch connected in series with the auxiliary winding is closed to control the auxiliary winding of the transformer in the ac pulse power supply to release energy, so as to maintain the stability of the output energy of the power supply.

As shown in fig. 2, in an embodiment of the present invention, in step S1022, in a negative phase overlapping period in which the output current of the ac pulse power supply is to be overlapped in the negative phase, the process of turning on the pulse width modulation to a preset value and closing the overlap switch to enable the auxiliary winding to provide energy for the secondary commutation to maintain a sufficient overlap energy output includes steps S201 to S202, which are described in detail as follows:

s201: detecting a first timing at which the output current is changed from a positive phase to a negative phase in the negative phase overlap period.

In this embodiment, the first time point indicates a time point at which the output current of the ac pulse power supply changes from the positive phase to the negative phase. When the first moment is detected, the first moment at which the output current is converted from the positive phase to the negative phase can be obtained through display of an oscilloscope, or can be determined according to the frequency or the period of the output current.

Further, after detecting the first time point in the negative phase overlapping period when the output current is changed from the positive phase to the negative phase in this step S201, the method further includes: controlling the phase of the output current to be switched from a positive phase to a negative phase between the first timing and an end timing of the negative phase overlap period.

In the present embodiment, the negative-phase arc stabilization time is the negative-phase arc stabilization time in the first time and the termination time of the negative-phase overlap period. During this time, the phase controlling the output current is switched from a positive phase to a negative phase.

Specifically, the overlapping unit of the present embodiment includes a first switch and a second switch. The first switch and the second switch are preset in a pulse width modulation unit of the alternating current pulse power supply and are used for regulating and controlling the positive phase and the negative phase of the output current. Specifically, the first switch is used for driving the current in the positive direction; the second switch is used for carrying out negative driving on the current.

In a specific regulation process, when the first time is reached, the first switch is opened and the second switch is closed, so that the phase of the output current is switched from a positive phase to a negative phase, and the stability of a negative-phase arc is maintained.

In addition, the phase of the current can be regulated by replacing the switch with the pin, and the component for regulating the phase of the current is not limited herein.

S202: and between the first time and the termination time of the negative phase overlapping period, closing the overlapping switch to enable an auxiliary winding of a transformer in the alternating current pulse power supply to release negative phase energy.

The first time in the present embodiment is in the minus overlap period, and the time for storing energy for minus overlap is in the period from the start time of the minus overlap period to the first time. In the termination time of the first time and the negative phase overlapping period, there is a negative phase arc stabilization time. During this time, the overlap switch is closed, so that the auxiliary winding of the transformer in the AC pulse power supply releases the negative phase energy, and the negative phase arc is maintained stable.

Corresponding to the step S1021, the period includes a positive phase overlapping period in which the output current of the ac pulse power supply is to be overlapped in a positive phase; step S102 includes step S1023 in addition to step S1021, which is described in detail as follows:

s1023: and in a positive phase overlapping period when the output current of the alternating current pulse power supply is to be overlapped in a positive phase, switching on the pulse width modulation to a preset value, and closing the overlapping switch so as to maintain sufficient overlapping energy output when the auxiliary winding provides energy for secondary phase commutation.

Specifically, the positive-phase overlap period of the present embodiment indicates a period in which the output currents of the ac pulse power supply are to be overlapped in the positive phase. In the non-inverting overlap period, an overlap switch in series with the auxiliary winding is closed to control the auxiliary winding of the transformer in the ac pulsed power supply to discharge energy.

As shown in fig. 3, in an embodiment of the present invention, in step S1023, in a positive phase overlapping period in which the output current of the ac pulse power supply is to be overlapped in a positive phase, the process of turning on the pulse width modulation to a preset value and closing the overlap switch to enable the auxiliary winding to provide energy for the secondary commutation maintains a sufficient overlap energy output includes steps S301 to S302, which are described in detail as follows:

s301: detecting a second timing at which the output current is changed from the positive phase to the negative phase in the negative phase overlap period.

In this embodiment, the second time point indicates a time point at which the output current of the ac pulse power supply changes from the positive phase to the negative phase. When the second time is detected, the second time at which the output current is converted from the positive phase to the negative phase can be obtained through display of an oscilloscope, or can be determined according to the frequency or the period of the output current.

Further, after detecting a second time at which the output current is changed from the positive phase to the negative phase in the negative overlap period in step S301, the method further includes: controlling the phase of the output current to be switched from a negative phase to a positive phase between the second timing and an end timing of the positive phase overlap period.

In the present embodiment, the second time and the termination time of the positive-phase overlap period are positive-phase arc stabilization times. During this time, the phase of the output current is controlled to be switched from negative to positive.

Specifically, the overlapping unit of this embodiment includes a first switch and a second switch, where the first switch and the second switch are preset in a pulse width modulation unit of the ac pulse power supply and are used to regulate and control positive and negative phases of the output current. In a specific regulation process, at the second moment, the first switch is closed and the second switch is opened so as to control the phase of the output current to be switched from the negative phase to the positive phase and maintain the stability of the positive phase arc.

In addition, the phase of the current can be regulated by replacing the switch with the pin, and the component for regulating the phase of the current is not limited herein.

S302: and between the second moment and the termination moment of the positive phase overlapping period, closing the overlapping switch to enable an auxiliary winding of a transformer in the alternating current pulse power supply to release positive phase energy.

The second timing in the present embodiment is in the non-inverting overlap period, and the time for storing energy for the non-inverting overlap is in the period from the start timing of the non-inverting overlap period to the second timing. In the time interval between the second time and the termination time of the positive-phase overlap time interval, the positive-phase arc is stabilized, and the positive-phase arc is maintained to be stabilized by closing the overlap switch to release positive-phase energy from an auxiliary winding of a transformer in the alternating-current pulse power supply.

In step S103, at the end of the period, the auxiliary winding is controlled to stop releasing energy.

At the end of this period, the auxiliary winding is controlled to stop releasing energy. The specific control method is to turn off the overlap switch to stop the auxiliary winding and end the positive and negative phase overlap process.

Illustratively, as shown in fig. 4, fig. 4 is a timing chart of the power supply control method provided by the present embodiment. Wherein IPA represents the peak current value, IBA represents the base current value, t₁～t₃Indicating a negative overlap period, t₄～t₆Representing a positive phase overlap period, t₂Denotes a first time, t₅Indicating a second moment, OFF indicating that the switch is open and ON indicating that the switch is closed. Wherein, the Pulse Width Modulation unit (PWM) includes: an overlap control switch pwmC, a first switch pwmA and a second switchpwmB。

As shown in FIG. 4, the negative overlap is t₁～t₃In the time period, the PWM needs to be switched on to a preset value, namely a k value, so that the auxiliary winding can be ensured to continuously output high energy; at t₁Turning ON an overlapped switch at the moment pwmC, and releasing overlapped energy; at t₂At the moment, pwmA is OFF and pwmB is ON, and the output current is switched from positive to negative; at t₃At time pwmC is OFF, the superimposition switch is turned OFF, and the negative superimposition is ended. Positive overlap of t₅～t₆In the time period, PWM needs to be switched on to a preset value in the time period, and the auxiliary winding is ensured to continuously output high energy; at t₄Turning ON an overlapped switch at the moment pwmC, and releasing overlapped energy; at t₅At the moment, pwmA is ON and pwmB is OFF, and the output current is switched from negative to positive; at t₆At time pwmC is OFF, the superimposition switch is turned OFF, and the forward superimposition ends. Wherein t is₁～t₂The time period is negative overlapping energy storage time; t is t₂～t₃The time period is negative arc stabilization time; wherein t is₄～t₅The time period is positive direction overlapping energy storage time; t is t₅～t₆The time period is the forward arc stabilization time.

Fig. 5 is a block diagram illustrating a power control apparatus 500 according to an exemplary embodiment. As shown in fig. 5, the apparatus includes a first detecting unit 501, a first control unit 502, and a second control unit 503, which are specifically described as follows:

a first detecting unit 501, configured to detect a time period in which energy output by an ac pulse power supply is to be overlapped; a first control unit 502 for controlling an auxiliary winding of a transformer in the ac pulsed power supply to release energy during the time period; a second control unit 503 for controlling the auxiliary winding to stop releasing energy at the end of the time period.

In another exemplary embodiment, the period includes a negative phase overlapping period in which an output current of the alternating current pulse power supply is to be overlapped in a negative phase; the first control unit 502 includes: a third control unit for closing an overlap switch in series with the auxiliary winding during the negative overlap period to cause the auxiliary winding of a transformer in the ac pulsed power supply to discharge energy.

In another exemplary embodiment, the third control unit includes: a second detection unit configured to detect a first timing at which the output current is changed from a positive phase to a negative phase in the negative overlap period; and the fourth control unit is used for closing the overlap switch between the first moment and the termination moment of the negative phase overlap period to enable an auxiliary winding of a transformer in the alternating current pulse power supply to release negative phase energy.

In another exemplary embodiment, the power control device 500 further includes: a fifth control unit configured to control the phase of the output current to be switched from a positive phase to a negative phase between the first timing and an end timing of the negative phase overlapping period.

In another exemplary embodiment, the period includes a positive phase overlapping period in which the output currents of the alternating current pulse power supply are to overlap in a positive phase; the first control unit 502 includes: a sixth control unit, configured to close an overlap switch connected in series with the auxiliary winding in the positive phase overlap period, so that the auxiliary winding of the transformer in the ac pulse power supply releases energy.

In another exemplary embodiment, the sixth control unit includes: a third detection unit configured to detect a second timing at which the output current is changed from the positive phase to the negative phase in the negative overlap period; a seventh control unit, configured to close the overlap switch between the second time and an end time of the positive phase overlap period, so that an auxiliary winding of a transformer in the ac pulse power supply releases positive phase energy.

In another exemplary embodiment, the power control device 500 further includes: an eighth control unit configured to control the phase of the output current to be switched from a negative phase to a positive phase between the second timing and an end timing of the positive-phase overlap period.

It should be noted that the apparatus provided in the foregoing embodiment and the method provided in the foregoing embodiment belong to the same concept, and the specific manner in which each module performs operations has been described in detail in the method embodiment, and is not described again here.

Fig. 6 shows a circuit diagram of a power supply according to an embodiment of the present application, the power supply in this embodiment comprising a transformer and an overlapping unit in parallel with the transformer, wherein the overlapping unit comprises: the overlapping switch is used for controlling the auxiliary winding to release energy when detecting that the energy output by the alternating current pulse power supply is to be overlapped. For details, please refer to the description of the above embodiments, which is not described herein.

Specifically, the power supply in this embodiment includes: the inverter comprises a primary rectifying unit 601, an inverter 602, a transformer 603, a secondary rectifying unit 604 connected with the transformer 603 in parallel, an overlapping unit 605, a reactor 606 connected with the secondary rectifying unit 604 in series, and a secondary inverting unit 607 connected with the overlapping unit in parallel, which are connected in sequence.

Wherein, 605 in the overlapping unit specifically includes:

an auxiliary winding 6051 of a transformer for discharging energy to maintain arc stability of the power supply;

a rectifier 6052, an inductor 6053, and a capacitor 6054 connected in series with the auxiliary winding 6051;

an overlap switch 6055 connected in parallel with the auxiliary winding to control the auxiliary winding to release energy when detecting that the energy output by the ac pulse power supply is to be overlapped;

and a Pulse Width Modulation (PWM) driving unit 6056 connected in series with the superposition switch and the secondary inversion unit, wherein the PWM driving unit comprises a component 6057 for controlling the superposition switch 6055, a first switch 6058 for positive driving, a second switch 6059 for negative driving and a PWM60510 for controlling the inversion unit.

In an exemplary embodiment, the present application further provides an electronic device comprising a processor and a memory, the memory having stored thereon computer readable instructions which, when executed by the processor, implement the user management method of the server out-of-band management system as described above.

As another aspect, the present application also provides a computer-readable medium, which may be contained in the electronic device described in the above embodiments; or may exist separately without being assembled into the electronic device. The computer readable medium carries one or more programs which, when executed by an electronic device, cause the electronic device to implement the method described in the above embodiments.

It should be noted that although in the above detailed description several modules or units of the device for action execution are mentioned, such a division is not mandatory. Indeed, the features and functionality of two or more modules or units described above may be embodied in one module or unit, according to embodiments of the application. Conversely, the features and functions of one module or unit described above may be further divided into embodiments by a plurality of modules or units.

Through the above description of the embodiments, those skilled in the art will readily understand that the exemplary embodiments described herein may be implemented by software, or by software in combination with necessary hardware. Therefore, the technical solution according to the embodiments of the present application can be embodied in the form of a software product, which can be stored in a non-volatile storage medium (which can be a CD-ROM, a usb disk, a removable hard disk, etc.) or on a network, and includes several instructions to enable a computing device (which can be a personal computer, a server, a touch terminal, or a network device, etc.) to execute the method according to the embodiments of the present application.

Other embodiments of the present application will be apparent to those skilled in the art from consideration of the specification and practice of the embodiments disclosed herein. This application is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the application and including such departures from the present disclosure as come within known or customary practice within the art to which the invention pertains.

It will be understood that the present application is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the application is limited only by the appended claims.