WO2022127049A1 - 谐振槽电路、宽电压输入输出电源和电子设备 - Google Patents

谐振槽电路、宽电压输入输出电源和电子设备 Download PDF

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Publication number
WO2022127049A1
WO2022127049A1 PCT/CN2021/098828 CN2021098828W WO2022127049A1 WO 2022127049 A1 WO2022127049 A1 WO 2022127049A1 CN 2021098828 W CN2021098828 W CN 2021098828W WO 2022127049 A1 WO2022127049 A1 WO 2022127049A1
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Prior art keywords
power
output
circuit
input
coil
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PCT/CN2021/098828
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English (en)
French (fr)
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高阳
巫跃凤
韦建利
杨作兴
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深圳比特微电子科技有限公司
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Priority to US18/005,310 priority Critical patent/US20230283172A1/en
Publication of WO2022127049A1 publication Critical patent/WO2022127049A1/zh

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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M1/00—Details of apparatus for conversion
    • H02M1/42—Circuits or arrangements for compensating for or adjusting power factor in converters or inverters
    • H02M1/4208—Arrangements for improving power factor of AC input
    • H02M1/4241—Arrangements for improving power factor of AC input using a resonant converter
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M3/00—Conversion of dc power input into dc power output
    • H02M3/22—Conversion of dc power input into dc power output with intermediate conversion into ac
    • H02M3/24—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters
    • H02M3/28—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac
    • H02M3/325—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal
    • H02M3/335—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M3/00—Conversion of dc power input into dc power output
    • H02M3/22—Conversion of dc power input into dc power output with intermediate conversion into ac
    • H02M3/24—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters
    • H02M3/28—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac
    • H02M3/325—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal
    • H02M3/335—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only
    • H02M3/33507—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of the output voltage or current, e.g. flyback converters
    • H02M3/33523—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of the output voltage or current, e.g. flyback converters with galvanic isolation between input and output of both the power stage and the feedback loop
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M1/00—Details of apparatus for conversion
    • H02M1/08—Circuits specially adapted for the generation of control voltages for semiconductor devices incorporated in static converters
    • H02M1/088—Circuits specially adapted for the generation of control voltages for semiconductor devices incorporated in static converters for the simultaneous control of series or parallel connected semiconductor devices
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M1/00—Details of apparatus for conversion
    • H02M1/10—Arrangements incorporating converting means for enabling loads to be operated at will from different kinds of power supplies, e.g. from ac or dc
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M1/00—Details of apparatus for conversion
    • H02M1/36—Means for starting or stopping converters
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M1/00—Details of apparatus for conversion
    • H02M1/42—Circuits or arrangements for compensating for or adjusting power factor in converters or inverters
    • H02M1/4208—Arrangements for improving power factor of AC input
    • H02M1/4258—Arrangements for improving power factor of AC input using a single converter stage both for correction of AC input power factor and generation of a regulated and galvanically isolated DC output voltage
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M3/00—Conversion of dc power input into dc power output
    • H02M3/01—Resonant DC/DC converters
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M3/00—Conversion of dc power input into dc power output
    • H02M3/22—Conversion of dc power input into dc power output with intermediate conversion into ac
    • H02M3/24—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters
    • H02M3/28—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac
    • H02M3/325—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal
    • H02M3/335—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only
    • H02M3/33569—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only having several active switching elements
    • H02M3/33576—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only having several active switching elements having at least one active switching element at the secondary side of an isolation transformer
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
    • H02M7/02—Conversion of ac power input into dc power output without possibility of reversal
    • H02M7/04—Conversion of ac power input into dc power output without possibility of reversal by static converters
    • H02M7/12—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M7/21—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
    • H02M7/217—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
    • Y02B70/10—Technologies improving the efficiency by using switched-mode power supplies [SMPS], i.e. efficient power electronics conversion e.g. power factor correction or reduction of losses in power supplies or efficient standby modes

Definitions

  • the present application relates to the technical field of power supply control, and in particular, to a resonant tank circuit, a wide voltage input and output power supply and electronic equipment.
  • the preparation technology of its internal chips is more and more advanced, and there are also large differences in performance between chips. Based on this, chips of the same type are further subdivided into more grades. In this case, even if different complete devices are manufactured with the same circuit, the required working voltage range is quite different. Therefore, the working voltage range required by the same type of complete equipment is not necessarily the same. However, different types of complete equipment require different operating voltage ranges due to differences in circuit design, chip model and other aspects. In this case, in order to meet the working voltage requirements of a variety of equipment of the same type and different types of equipment, the power supply needs to be able to output the working voltage required by the equipment according to the specific requirements of the equipment installed.
  • the efficiency can only be optimized in a small voltage range.
  • the same type of voltage regulating power supply outputs different working voltages, there is a large efficiency deviation.
  • the current electronic equipment can only use different types of voltage regulating power supplies according to different designs and materials (such as chips, etc.) to ensure that the output voltage range can ensure the normal operation of the electronic equipment. This creates a problem with the large variety of power supply models that are difficult to manage.
  • the voltage-regulated power supply In addition to taking into account the range and efficiency of the output voltage, the voltage-regulated power supply also needs to take into account the range of the input voltage, which results in the fact that the same type of power supply cannot be applied to power frequency AC power grids with multiple voltage ranges at the same time.
  • the power supply meets the adaptation of the corresponding power frequency AC power grid, which further increases the type and number of power supply models, thereby increasing the difficulty of power management and operating costs.
  • embodiments of the present application provide a resonant tank circuit, a wide-voltage input-output power supply, and an electronic device, so as to meet the voltage adaptation requirements of a power-frequency AC power grid and output a wide-width working voltage to support various working voltages, Ensure that the same power supply is suitable for the normal operation of multiple electronic devices, thereby reducing the type and number of power supply models, reducing the difficulty of power management and operating costs.
  • a resonant tank circuit comprising:
  • variable turns transformer unit has an input end coil and an output end coil, the input end coil includes at least two first connection ends and one second connection end, wherein each of the Both the first connection end and the second connection end are connected through the input coil, and the number of coil turns between each of the first connection end and the second connection end is not equal;
  • the switch switching unit has a control terminal, a first input terminal and at least two first output terminals, the number of the first output terminals is equal to the number of the first connection terminals, and the first output terminal
  • the terminal is electrically connected to the first connection terminal one-to-one, and the switch switching unit is configured to connect one of the at least two first output terminals to the first output terminal according to the control signal received by the control terminal.
  • a wide voltage input and output power supply comprising:
  • a square wave DC generation circuit the square wave DC generation circuit is electrically connected to the second connection terminal and the first input terminal, and the DC square wave generation circuit is used for connecting to the power frequency AC power grid and connecting the power
  • the AC power supply of the high frequency AC power grid is adjusted to square wave DC and output to the resonant tank circuit;
  • the rectifier circuit is electrically connected to the output coil, and the rectifier circuit is used to connect to an electrical load and adjust the electrical energy output by the output coil to direct current and output it to the electrical load; as well as,
  • control module is electrically connected to the control terminal, and the control module is configured to generate the control signal according to the voltage value of the connected power frequency AC power grid and the preset working voltage value of the electrical load .
  • An electronic device comprising:
  • the electrical load is electrically connected to the rectifier circuit
  • a load voltage providing unit the load voltage providing unit is electrically connected to the control module to send the voltage value of the power frequency AC grid and the preset working voltage value of the electrical load to the control module.
  • the adjustment method includes: adding multiple connection terminals to the input coil of the transformer part, and using a switch switching unit to switch between the multiple connection terminals to change the input coil and output of the transformer part.
  • the turns ratio of the end coils so that the PFC voltage can be used to convert the required working voltage of the electric load during the power-on process, so as to realize the purpose of adjusting the voltage value of the power frequency AC grid to the working voltage value of the electric load, ensuring that The normal operation of the electrical load after starting up.
  • the embodiment of the present application can be compatible with the wide voltage range of the power frequency AC power grid and the working voltage range of multiple electrical loads, and realizes the wide voltage range.
  • the input and output are adjusted, so the embodiment of the present application can meet the use requirements of the voltage value of the wide-range power frequency AC power grid and the working voltage value of the power consumption load, ensuring that the same power supply is suitable for the normal operation of a variety of electronic devices, and reducing the number of power supply models
  • the type and quantity of the power supply reduce the difficulty of power management and operating costs.
  • FIG. 1 is a schematic structural diagram of a resonant tank circuit according to an embodiment of the application.
  • FIG. 2 is a schematic structural diagram of a wide voltage input and output power supply according to an embodiment of the application
  • FIG. 3 is a schematic structural diagram of an electronic device according to an embodiment of the application.
  • FIG. 4 is a circuit block diagram of a data processing device using the wide-voltage input-output power supply of the embodiment of the application.
  • Control module 40 Control module 40.
  • the LLC resonant circuit is a resonant circuit that achieves a constant output voltage by controlling the switching frequency (frequency adjustment), where L is the inductance symbol and C is the capacitance symbol.
  • the LLC resonant circuit is widely used in the power supply of electronic equipment, and the LLC resonant circuit is generally used in the occasions with power factor correction (PFC, Power Factor Correction) in the front stage.
  • the resonant tank circuit is an integral part of the LLC resonant circuit, which contains the transformer element.
  • Transformer is a device that uses the principle of electromagnetic induction to change the AC voltage.
  • the main components are the primary coil (or input coil), the secondary coil (or output coil) and the iron core. Its main functions include voltage transformation, current transformation, impedance Transform, isolate, etc.
  • the change of the AC voltage by the transformer is achieved using the turns ratio between the primary and secondary windings.
  • the LLC resonant circuit generally includes a controller with a Metal-Oxide-Semiconductor Field-Effect Transistor (MOSFET), a resonant network (resonant tank circuit) and a rectifier circuit.
  • the controller alternately provides gate signals to the two MOSFETs with a 50% duty cycle, changes the operating frequency as the load changes, and regulates the output voltage, which is called pulse frequency modulation (PFM).
  • PFM pulse frequency modulation
  • the resonant network can be formed by a transformer.
  • the rectifier circuit rectifies the sinusoidal waveform produced by the resonant network and transmits it to the output stage to power the load.
  • the transformer uses the turns ratio between the primary coil and the secondary coil to achieve the change of the AC voltage, in the LLC resonant circuit, it can be adjusted by adjusting the turns ratio between the primary coil and the secondary coil of the transformer.
  • a relatively small voltage range is achieved at the front-stage PFC output so that the latter-stage DC-DC (direct current-direct current) circuit can obtain a wider output voltage range.
  • the embodiments of the present application propose the following resonant tank circuits used in power supplies capable of realizing wide voltage input and output, as well as wide voltage input and output power supplies and electronic devices.
  • the resonant tank circuit of the embodiment of the present application mainly includes a variable turns transformer unit 1 and a switch switching unit 2 .
  • the variable turns transformer unit 1 has an input end coil L1 and an output end coil L2, and the input end coil L1 includes at least two first connection ends (eg U1 and U2 shown in FIG. 1 ) and a second connection end U3. Wherein, each first connection end is connected with the second connection end U3 through the input coil L1, and the number of coil turns between each first connection end and the second connection end U3 is not equal.
  • FIG. 1 the variable turns transformer unit 1
  • the input end coil L1 includes at least two first connection ends (eg U1 and U2 shown in FIG. 1 ) and a second connection end U3.
  • each first connection end is connected with the second connection end U3 through the input coil L1, and the number of coil turns between each first connection end and the second connection end U3 is not equal.
  • the number of coil turns between the first connection end U1 and the second connection end U3 is not equal to the number of coil turns between the first connection end U2 and the second connection end U3, and if the first connection end U2 and the second connection end U3
  • the turns ratio between the input coil L1 and the output coil L2 between the connection end U1 and the second connection end U3 is called the first turns ratio
  • the ratio between the first connection end U2 and the second connection end U3 is
  • the turns ratio between the input coil L1 and the output coil L2 is called the second turns ratio
  • the first turns ratio is not equal to the second turns ratio.
  • the switch switching unit 2 has a control terminal C1 , a first input terminal I1 and at least two first output terminals (eg O1 and O2 shown in FIG. 1 ).
  • the number of the first output ends is equal to the number of the first connection ends of the input end coil L1, and the first output end is electrically connected to the first connection end of the input end coil L1 one-to-one.
  • the first output terminal O1 is electrically connected to the first connection terminal U1
  • the second output terminal O2 is electrically connected to the second connection terminal U2 .
  • the switch switching unit 2 is configured to switch on the circuit connection between one of the at least two first output terminals and the first input terminal I1 according to the control signal received by the control terminal C1 thereof. For example, as shown in FIG. 1 , the switch switching unit 2 turns on the circuit connection between one of the first output terminal O1 and the first output terminal O2 and the first input terminal I1 according to the control signal received by its control terminal C1 .
  • the first input end I1 and the second connection end U3 are electrically connected to the square wave DC generating circuit of the previous stage.
  • the resonant tank circuit of the embodiment of the present application may further include electronic components such as inductors and capacitors.
  • a capacitor is connected in series between the terminal U3 and the square wave DC generating circuit of the previous stage.
  • the switch switching unit is a relay.
  • the switching unit may also use electronic switching devices such as MOS (abbreviation for MOSFET) transistors.
  • one input coil L1 there is one input coil L1 , and one end of the input coil L1 is one of at least two first connection ends.
  • one end of the input coil L1 is the first connection end U1
  • the other end of the input coil L1 is the second connection U3, except for the first connection end of one end of the input coil L1
  • the other first connection ends other than the connection end are drawn from the middle portion of the input coil L1.
  • the first connection end U2 is drawn from the middle portion of the input coil L1.
  • the adjustment and control of the turns ratio between the primary and secondary coils of the variable turns transformer unit 1 is realized, which can be realized by connecting different first connection terminals (U1, U2).
  • Regulation of voltage range eg 220V to 380V
  • wide voltage range of output voltage eg 12V to 24V.
  • the embodiment of the present application further provides a wide voltage input and output power supply, as shown in FIG. 2 , which includes a resonant tank circuit 10 , a square wave DC generating circuit 20 , a rectifier circuit 30 and a control module 40.
  • the resonant tank circuit 10 is the resonant tank circuit of the above-mentioned embodiment.
  • the square wave DC generation circuit 20 is electrically connected to the second connection terminal U3 and the first input terminal I1 in the resonant tank circuit 10, and the square wave DC generation circuit 20 is used for connecting to the power frequency AC power grid and supplying AC power from the power frequency AC power grid.
  • the rectifier circuit 30 is electrically connected to the output coil L2 in the resonant tank circuit 10.
  • the rectifier circuit 30 is used to connect to the electrical load and adjust the electrical energy output by the output coil L2 into direct current and output it to the electrical load.
  • the control module 40 is electrically connected to the control terminal C1 in the resonant tank circuit 10 , and the control module 40 is configured to generate a control signal according to the voltage value of the connected power frequency AC grid and the preset working voltage value of the electrical load.
  • the rectifier circuit 30 may be, for example, a bridge circuit composed of diodes, etc., which will not be repeated here.
  • the control module 40 can obtain the number of turns between the input coil L1 and the output coil L2 by looking up a table ratio, and the turns ratio between the input coil and the output coil obtained when each first connection terminal is connected to the second connection terminal is determined (it has been determined when the variable turns transformer unit 1 is manufactured) , and then the control module 40 can determine which first connection end is connected (ie, corresponding to the turns ratio between the input end coil and the output end coil) by looking up a table.
  • the information recorded in the queried table may include the voltage value of the power-frequency AC power grid, the preset working voltage value of the electrical load, and the corresponding first connection terminal to be connected. See Table 1.
  • Z1 and Z2 represent specific voltage values of the power-frequency AC power grid, and z1 and z2 represent specific preset working voltage values of electrical loads.
  • the conversion from a wide-range input voltage to a wide-range output voltage can be realized.
  • the conversion from the voltage value of the power frequency AC power grid in a wide range of 200V to 300V to the preset working voltage value of the power load in a wide range of 12V to 24V can be realized.
  • the power supply can be at the optimal efficiency point when connecting to the 277V and 220V power frequency AC power grid by connecting the first connection terminal U1 or the second connection terminal U2 through the control signal.
  • first connection terminals and the corresponding turns ratio including the ratio of the number of turns between each first connection terminal and the second connection terminal to the number of turns of the output coil, it can be compatible with various voltage values. Power frequency AC power grid and electrical loads with various working voltage values.
  • the square wave DC generating circuit 20 includes a PFC unit 21 and a bridge circuit unit 22 .
  • the PFC unit 21 is used to connect to the power frequency AC power grid and adjust the AC power of the power frequency AC power grid to DC power.
  • the bridge circuit unit 22 is electrically connected between the PFC unit 21 and the resonant tank circuit 10 .
  • the bridge circuit unit 22 is used to adjust the DC power output by the PFC unit 21 to square wave DC power and output it to the resonance tank circuit 10 .
  • the bridge circuit unit 22 may include a full bridge circuit and/or a half bridge circuit.
  • an embodiment of the present application further provides an electronic device, including a wide voltage input and output power supply, an electrical load 50 and a load voltage providing unit 60 described in the above embodiments.
  • the electrical load 50 is electrically connected to the rectifier circuit 30 .
  • the load voltage providing unit 60 is electrically connected to the control module 40, so as to send the voltage value of the power frequency AC grid and the preset working voltage value of the electrical load to the control module 40.
  • the electronic device is a data processing device for virtual currency, wherein the electrical load 50 is a computing power board, and the load voltage providing unit 60 is a control board.
  • the data processing device in this application can be, for example, a virtual currency mining machine.
  • FIG. 4 shows a circuit block diagram of a data processing device using the wide-voltage input-output power supply of the embodiment of the application.
  • the wide voltage input and output power supply is the AC-DC power supply part in FIG. 4 .
  • the control board is connected to the computing power board in communication.
  • the hash board is provided with a non-volatile memory (storage) for storing its performance parameters, and the preset working voltage value of the hash board is included in the performance parameters.
  • the control board obtains the preset working voltage value of the computing power board by reading the performance parameters in the non-volatile memory (storage).
  • the performance parameter of the computing power board may be the model of the computing power board, wherein the model number directly corresponds to the performance of the computing power board or the performance identifier is stored in the model in an agreed format.
  • the control board obtains the preset working voltage value of the hashing board through the model of the hashing board, wherein, in an example, the performance parameter of the hashing board includes the preset working voltage value of the hashing board, and in another In an example, the performance parameters of the computing power board do not include the preset working voltage value of the computing power board, but the preset working voltage value of the computing power board corresponding to the performance parameters of the computing power board is stored in the control board.
  • the wide-voltage input-output power supply (AC-DC power supply) further includes a control board power supply circuit (in FIG. 4 , the auxiliary circuit output).
  • the control board power supply circuit (auxiliary circuit output) is electrically connected to the control board, and is used for connecting to the power frequency AC power grid and supplying power to the control board.
  • the power supply circuit of the control board is a separate power supply, a separate transformer, because the power is small, although it may not work at the optimal efficiency point, but the loss ratio is not large, so there is no problem in function, but Efficiency is not optimal, but since it is only a tiny fraction of the overall power efficiency, it does not affect the overall power efficiency.
  • the control module in the wide voltage input and output power supply (AC-DC power supply) is used to control each part of the AC-DC power supply, including the PFC unit and the DC-DC unit.
  • the control of the PFC unit is realized by the PFC control part in the control module
  • the control of the DC-DC unit is realized by the DC-DC control part.
  • the bridge circuit unit, the resonant tank circuit and the rectifier filter (or rectifier circuit) part together form a DC-DC unit
  • the DC-DC control part in the control module realizes the control of the bridge circuit unit and the rectifier filter respectively.
  • the DC-DC control part in the control module is also used to realize the control of the switching unit in the resonant tank circuit.
  • the PFC unit and the bridge circuit constitute the square wave DC generating circuit described in the foregoing embodiments.
  • the DC-DC behind the PFC unit converts the high-voltage direct current output from the PFC unit into high-voltage pulses through the control of switches, converts them into low-voltage pulses through the transformer, and then converts the low-voltage pulses into low-voltage direct currents through rectification and filtering on the rear side.
  • Auxiliary output is the power supply of the control board, and it is on by default when it is powered on. After the control board is powered on, it starts up, and supplies power to the storage unit on the computing power board.
  • the control module controls the switch switching unit according to the information provided by the control board to switch the variable turns transformer unit to the required turns ratio, and then the control board sends a power-on command when needed, and the voltage will turn on the main circuit output voltage.
  • the embodiment of the present application also provides a wide voltage input and output method, the method is used in the data processing device of the above embodiment, and the wide voltage input and output method mainly includes the following steps:
  • Step a1 the control board power supply circuit (auxiliary circuit output) is powered on, the control board of the data processing device is started, and the non-volatile memory (storage) of the computing power board is read to obtain the preset working voltage value of the computing power board;
  • Step a2 the control board generates configuration information according to the preset operating voltage value of the computing power board and sends it to the control module of the AC-DC power supply;
  • Step a3 the control module of the AC-DC power supply controls the switch switching unit to connect the corresponding first connection terminal according to the configuration information sent by the control board;
  • Step a4 the control board sends a power-on command to the control module of the AC-DC power supply.
  • the PFC unit Under the control of the control module, the PFC unit is connected to the power frequency AC power grid to supply power, and the drive computing power board is obtained through the bridge circuit, the resonant tank circuit and the rectification filter. Working DC power to drive the power-on board;
  • Step a5 the hash board works under the supply voltage of the direct current output by the rectifier circuit.
  • the adjustment method includes: adding multiple connection terminals to the input coil of the transformer part, and using a switch switching unit to switch between the multiple connection terminals to change the turns ratio of the input coil and the output coil of the transformer part, Therefore, the voltage value of the power frequency AC grid is adjusted to the working voltage value of the electric load during the power-on process, and the normal operation of the electric load after the power-on is ensured.
  • the embodiment of the present application through the setting of the number of connection terminals of the input coil and the setting of the turns ratio, the voltage values of multiple power frequency AC power grids and the working voltage values of multiple electrical loads can be compatible, thereby realizing a wide voltage range. Therefore, the embodiment of the present application can meet the use requirements of the voltage value of the power frequency AC power grid and the working voltage value of the electrical load, ensuring that the same power supply is suitable for the normal operation of various electronic devices, reducing the need for The variety and quantity of power supply models reduce the difficulty of power management and operating costs.

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Abstract

本申请实施例公开了一种谐振槽电路以及采用该谐振槽电路的宽电压输入输出电源和电子设备，主要包括：可变匝数变压器单元，具有输入端线圈和输出端线圈，输入端线圈包括至少两个第一连接端和一个第二连接端，每个第一连接端和第二连接端之间的线圈匝数不相等；开关切换单元，具有控制端、一个第一输入端和至少两个第一输出端，第一输出端的数量与第一连接端的数量相等，并且第一输出端与第一连接端一对一电连接，开关切换单元用于根据控制端所接收的控制信号接通至少两个第一输出端中的其中之一与第一输入端之间的电路连接。本申请实施例实现了在上电过程中，根据工频交流电网的电压值和用电负载的预设工作电压值的宽范围的适应性调节。

Description

谐振槽电路、宽电压输入输出电源和电子设备
本申请要求于2020年12月17日提交中国专利局、申请号为202011496918.1、名称为“谐振槽电路、宽电压输入输出电源和电子设备”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及电源控制技术领域，特别涉及一种谐振槽电路、宽电压输入输出电源和电子设备。
背景技术
当前的电子设备，特别是用于虚拟货币的数据处理设备中，其内部芯片的制备工艺越来越先进，同时芯片之间在性能上也存在着较大的差异。基于此，同型号的芯片进一步细分出了更多的等级，在这种情况下，即使是采用同样的电路制造出的不同整机设备，其所需要的工作电压范围的差异也比较大，因此，同一种型号的整机设备所需要的工作电压范围并不一定完全相同。而不同型号的整机设备因为电路设计、芯片型号等各方面的不同，所需要的工作电压范围也不一定相同。在这种情况下，要满足多种相同型号设备、不同型号设备的工作电压的要求，就需要电源能够根据其所安装的设备的特定要求输出设备所需要的工作电压。
当前的电源技术中，为了兼顾效率，只能在较小的电压范围内进行效率优化，同一型号的调压电源在输出不同大小的工作电压时，存在较大的效率偏差，因此，同一型号的调压电源很难同时兼容不同批次的电子设备的需求。所以，为了兼顾效率，当前的电子设备只能根据不同的设计和用料(如芯片等)而采用不同型号的调压电源，以确保所输出的电压范围能够保证电子设备的正常工作。这就造成了电源型号种类众多而难以管理的问题。
除了兼顾输出电压的范围和效率，调压电源还要兼顾输入电压的范围，这导致了同一型号的电源无法同时适用于多种电压范围的工频交流电网的情况，因此需要进一步增加不同型号的电源来满足相应的工频交流电网的适配，而这又进一步增加了电源型号的种类和数量，从而增加了电源管理难度和运营成本。
因此，提供一种电源以同时满足工频交流电网的电压适配需求并且能够输出宽幅的工作电压以支持各种不同工作电压，从而确保该电源适用于多种电子设备的正常工作，便成为亟待解决的问题。
申请内容
有鉴于此，本申请实施例提供一种谐振槽电路、宽电压输入输出电源和电子设备，以满足工频交流电网的电压适配需求并且输出宽幅的工作电压以支持各种不同工作电压，确保同一种电源适用于多种电子设备的正常工作，进而减少电源型号的种类和数量，降低电源管理的难度和运营成本。
本申请实施例的技术方案是这样实现的：
一种谐振槽电路，包括：
可变匝数变压器单元，所述可变匝数变压器单元具有输入端线圈和输出端线圈，所述输入端线圈包括至少两个第一连接端和一个第二连接端，其中，每个所述第一连接端均与所述第二连接端通过所述输入端线圈连接，并且，每个所述第一连接端和所述第二连接端之间的线圈匝数不相等；
开关切换单元，所述开关切换单元具有控制端、一个第一输入端和至少两个第一输出端，所述第一输出端的数量与所述第一连接端的数量相等，并且所述第一输出端与所述第一连接端一对一电连接，所述开关切换单元用于根据所述控制端所接收的控制信号接通所述至少两个第一输出端中的其中之一与所述第一输入端之间的电路连接。
一种宽电压输入输出电源，包括：
如上所述的谐振槽电路；
方波直流产生电路，所述方波直流产生电路电连接于所述第二连接端和所述第一输入端，所述直流方波产生电路用于接入工频交流电网并将所述工频交流电网的交流供电调整为方波直流电并输出给所述谐振槽电路；
整流电路，所述整流电路电连接于所述输出端线圈，所述整流电路用于接入用电负载并将所述输出端线圈所输出的电能调整为直流电并输出给所述用电负载；以及，
控制模块，所述控制模块电连接于所述控制端，所述控制模块用于根据所接入的工频交流电网的电压值和所述用电负载的预设工作电压值产生所述控制信号。
一种电子设备，包括：
如上所述的宽电压输入输出电源；
用电负载，所述用电负载电连接于所述整流电路；
负载电压提供单元，所述负载电压提供单元电连接于所述控制模块，以将所述工频交流电网的电压值和所述用电负载的预设工作电压值发送给所述控制模块。
从上述方案可以看出，采用本申请实施例的谐振槽电路、宽电压输入输出电源和电子设备，能够在上电过程中根据工频交流电网的电压值和用电负载的预设工作电压值进行宽范围的适应性调节，调节方式包括：在变压器部分的输入端线圈增加多个连接端，并利用开关切换单元在多个连接端之间进行切换，以改变变压器部分的输入端线圈和输出端线圈的匝数比，从而在上电过程中可以利用PFC电压转换出所需要的用电负载工作电压，进而实现将工频交流电网的电压值调节至用电负载的工作电压值的目的，确保了开机后用电负载的正常运行。本申请实施例通过对输入端线圈的连接端数量的设置以及对匝数比的设置，能够兼容工频交流电网的宽电压范围和多个用电负载的工作电压范围，实现了宽电压范围的输入输出调节，因此本申请实施例能够满足宽范围工频交流电网的电压值和用电负载工作电压值的使用需求，确保了同一种电源适用于多种电子设备的正常工作，减少了电源型号的种类和数量，降低了电源管理的难度和运营成本。
附图简要说明
图1为本申请实施例的谐振槽电路的结构示意图；
图2为本申请实施例的宽电压输入输出电源的结构示意图；
图3为本申请实施例的电子设备的结构示意图；
图4为采用申请实施例的宽电压输入输出电源的数据处理设备的电路框图。
附图中，各标号所代表的部件名称如下：
1、可变匝数变压器单元
L1、输入端线圈
L2、输出端线圈
U1、第一连接端
U2、第一连接端
U3、第二连接端
2、开关切换单元
C1、控制端
I1、第一输入端
O1、第一输出端
O2、第一输出端
10、谐振槽电路
20、方波直流产生电路
21、PFC单元
22、桥式电路单元
30、整流电路
40、控制模块
50、用电负载
60、负载电压提供单元
具体实施方式
为了使本申请的目的、技术方案及优点更加清楚明白，以下参照附图并举实施例，对本申请作进一步详细说明。
LLC谐振电路是一种通过控制开关频率(频率调节)来实现输出电压恒定的谐振电路，其中L为电感符号、C为电容符号。LLC谐振电路广泛应用于电子设备的电源当中，LLC谐振电路一般应用于前级带功率因数校正(PFC，Power Factor Correction)的场合。谐振槽电路是LLC谐振电路中的一个组成部分，其中包含了变压器元件。变压器是利用电磁感应的原理来改变交流电压的装置，主要构件是初级线圈(或输入端线圈)、次级线圈(或输出端线圈)和铁芯，其主要功能包括电压变换、电流变换、阻抗变换、隔离等。变压器对交流电压的改变是利用初级线圈和次级线圈之间的匝数比来实现的。
LLC谐振电路一般包括带有金属-氧化物半导体场效应晶体管(MOSFET，Metal-Oxide-Semiconductor Field-Effect Transistor)的控制器、一个谐振网络(谐振槽电路)和一个整流电路。控制器以50％的占空比交替为两个MOSFET提供门信号，随负载变化而改变工作频率，调节输出电压，这称为脉冲频率调制(PFM)。在实际设计中，谐振网络可由变压器构成。整流电路对谐振网络产生的正弦波形进行整流，然后传输到输出级以向负载供电。
由于变压器利用初级线圈和次级线圈之间的匝数比来实现交流电压的改变，因此，在 LLC谐振电路中，可以通过对变压器的初级线圈和次级线圈之间的匝数比的调整而实现在前级PFC输出相对较小的电压范围从而使后级DC-DC(直流-直流)电路获得更宽的输出电压范围。基于此，本申请实施例提出以下可实现宽电压输入输出的电源中所使用的谐振槽电路、以及宽电压输入输出电源和电子设备。
如图1所示，本申请实施例的谐振槽电路主要包括可变匝数变压器单元1和开关切换单元2。其中，可变匝数变压器单元1具有输入端线圈L1和输出端线圈L2，输入端线圈L1包括至少两个第一连接端(例如图1中所示的U1、U2)和一个第二连接端U3。其中，每个第一连接端均与第二连接端U3通过输入端线圈L1连接，并且，每个第一连接端和第二连接端U3之间的线圈匝数不相等。例如图1中所示，第一连接端U1和第二连接端U3之间的线圈匝数与第一连接端U2和第二连接端U3之间的线圈匝数不相等，进而若将第一连接端U1和第二连接端U3之间的输入端线圈L1和输出端线圈L2之间的匝数比称作第一匝数比，将第一连接端U2和第二连接端U3之间的输入端线圈L1和输出端线圈L2之间的匝数比称作第二匝数比，则第一匝数比与第二匝数比不相等。
开关切换单元2具有控制端C1、一个第一输入端I1和至少两个第一输出端(例如图1中所示的O1和O2)。其中，第一输出端的数量与输入端线圈L1的第一连接端的数量相等，并且第一输出端与输入端线圈L1的第一连接端一对一电连接。例如图1中所示，第一输出端与第一连接端均为两个，第一输出端O1与第一连接端U1电连接，第二输出端O2与第二连接端U2电连接。开关切换单元2用于根据其控制端C1所接收的控制信号接通至少两个第一输出端中的其中之一与第一输入端I1之间的电路连接。例如图1中所示，开关切换单元2根据其控制端C1所接收的控制信号接通第一输出端O1和第一输出端O2的其中之一与第一输入端I1之间的电路连接。第一输入端I1和第二连接端U3电连接于前级的方波直流产生电路。
在实施例中，本申请实施例的谐振槽电路中还可进一步包括电感、电容等电子元件，例如在第一输入端I1和前级的方波直流产生电路之间串联电感，在第二连接端U3和前级的方波直流产生电路之间串联电容。
在实施例中，开关切换单元为继电器。在其他实施例中，开关切换单元还可以采用MOS(MOSFET的缩写)管一类的电子开关器件。
如图1所示，在实施例中，输入端线圈L1为一个，输入端线圈L1的一个端部为至少两个第一连接端的其中之一。例如图1中所示，输入端线圈L1的一个端部为第一连接端U1，输入端线圈L1的另一个端部为第二连接端U3，除输入端线圈L1的一个端部的第一连接端以外的其它第一连接端由输入端线圈L1的中段部分引出，例如图1中所示，第一连接端U2由输入端线圈L1的中段部分引出。
采用上述谐振槽电路，实现了可变匝数变压器单元1的初级、次级线圈之间的匝数比的调节控制，进而可通过对不同第一连接端(U1、U2)的接通来实现输出端线圈L2一侧输出电压的调整，从而可根据输入端线圈L1侧的电压和所需要获得的输出端线圈L2一侧的输出电压来接通不同第一连接端，以实现输入电压的宽电压范围(例如220V至380V)和输出电压的宽电压范围(例如12V至24V)的调节。
基于上述实施例的谐振槽电路，本申请实施例还提供了一种宽电压输入输出电源，如图2所示，其包括谐振槽电路10、方波直流产生电路20、整流电路30和控制模块40。结合图1所示，谐振槽电路10为上述实施例的谐振槽电路。方波直流产生电路20电连接于 谐振槽电路10中的第二连接端U3和第一输入端I1，方波直流产生电路20用于接入工频交流电网并将工频交流电网的交流供电调整为方波直流电并输出给谐振槽电路10。整流电路30电连接于谐振槽电路10中的输出端线圈L2，整流电路30用于接入用电负载并将输出端线圈L2所输出的电能调整为直流电并输出给用电负载。控制模块40电连接于谐振槽电路10中的控制端C1，控制模块40用于根据所接入的工频交流电网的电压值和用电负载的预设工作电压值产生控制信号。其中，整流电路30可以为例如由二极管组成的电桥电路等，此处不再赘述。
在实施例中，控制模块40在获得工频交流电网的电压值和用电负载的预设工作电压值后，可通过查表的方式得到输入端线圈L1和输出端线圈L2之间的匝数比，而各个第一连接端与第二连接端接通时所得到的输入端线圈和输出端线圈之间的匝数比是确定的(在制造可变匝数变压器单元1时便已确定)，进而控制模块40可以通过查表的方式确定出接通哪个第一连接端(即对应于输入端线圈和输出端线圈之间的匝数比)。在一个实施例中，在所查询的表格中记载的信息可以包括工频交流电网的电压值、用电负载的预设工作电压值、以及与之对应的要接通的第一连接端，可参见表1所示。
表1 查询的表格内容
工频交流电网的电压值 用电负载的预设工作电压值 对应接通的连接端
Z1 z1 第一连接端U1
Z2 z2 第一连接端U2
…… …… ……
在表1中，Z1、Z2表示具体的工频交流电网的电压值，z1、z2表示具体的用电负载的预设工作电压值。
利用上述实施例的宽电压输入输出电源，便可实现从宽范围输入电压到宽范围输出的电压的转换。在实际用例中，可以实现200V至300V的宽范围的工频交流电网的电压值到12V至24V的宽范围用电负载的预设工作电压值的转换，例如，可实现220V到12V、220V到15V、277V到12V、277V到15V等电压的转换。
以图1所示的两个第一连接端(U1、U2)为例，将第一连接端U1和第二连接端U3之间的匝数与第一连接端U2和第二连接端U3之间的匝数的比值设定为17:15，并将第一连接端U1和第二连接端U3之间的匝数与输出线圈的匝数的比值设定为16:1，则对应于工作电压值为12V左右的用电负载来说，通过控制信号接通第一连接端U1或者第二连接端U2便可使接入277V和220V的工频交流电网时电源都处于最优的效率点。因此，通过增加更多的第一连接端和相应的匝数比(包括各个第一连接端与第二连接端之间的匝数与输出线圈匝数的比值)便可兼容多种电压值的工频交流电网和多种工作电压值的用电负载。
如图2所示，在实施例中，方波直流产生电路20包括PFC单元21和桥式电路单元22。其中，PFC单元21用于接入工频交流电网并将工频交流电网的交流电调整为直流电。桥式电路单元22电连接于PFC单元21和谐振槽电路10之间，桥式电路单元22用于将PFC单元21输出的直流电调整为方波直流电并输出给谐振槽电路10。其中，桥式电路单元22可包括全桥电路和/或半桥电路。
如图3所示，本申请实施例还提供了一种电子设备，包括上述实施例说明的宽电压输入输出电源、用电负载50和负载电压提供单元60。其中，用电负载50电连接于整流电路30。负载电压提供单元60电连接于控制模块40，以将工频交流电网的电压值和用电负载 的预设工作电压值发送给控制模块40。
在一个具体的实施例中，电子设备为用于虚拟货币的数据处理设备，其中，用电负载50为算力板，负载电压提供单元60为控制板。本申请中的数据处理设备例如可以是虚拟货币矿机。
图4示出了采用申请实施例的宽电压输入输出电源的数据处理设备的电路框图。其中，宽电压输入输出电源为图4中的AC-DC电源部分。其中，控制板与算力板通信连接。算力板设置有用于存储其性能参数的非易失存储器(存储)，算力板的预设工作电压值包含于性能参数中。控制板通过读取非易失存储器(存储)中的性能参数而获取算力板的预设工作电压值。
在实施例中，算力板的性能参数可以为算力板的型号，其中型号直接对应于算力板的性能或者性能标识在型号中以约定的格式存储。在实施例中，控制板通过算力板的型号获得算力板的预设工作电压值，其中，在一示例中，算力板的性能参数包含算力板的预设工作电压值，在另一示例中，算力板的性能参数不包含算力板的预设工作电压值，而是在控制板中存储有与算力板的性能参数对应的算力板的预设工作电压值。
进一步地，在实施例中，如图4所示，宽电压输入输出电源(AC-DC电源)还包括控制板供电电路(在图4中为辅路输出)。控制板供电电路(辅路输出)电连接于控制板，用于接入工频交流电网并对控制板供电。需要说明的是，控制板供电电路是单独的一路供电，单独的变压器，因为功率较小，虽然其不一定工作在最优效率点，但是损耗占比不大，所以在功能上没有问题，只是效率不是最优的，但因为其在整个电源效率中仅占有极小份额，并不会影响到整个电源效率。
进一步地，在实施例中，如图4所示，宽电压输入输出电源(AC-DC电源)中的控制模块用于控制AC-DC电源中各个部分，包括PFC单元、DC-DC单元。其中，对PFC单元的控制由控制模块中的PFC控制部分实现，对DC-DC单元的控制由DC-DC控制部分实现。其中，桥式电路单元、谐振槽电路和整流滤波(或者整流电路)部分共同构成DC-DC单元，控制模块中的DC-DC控制部分分别实现对桥式电路单元和整流滤波的控制。同时，控制模块中的DC-DC控制部分也用于实现对谐振槽电路中的开关切换单元的控制。
其中，图4所示中，PFC单元和桥式电路组成前述实施例中所述的方波直流产生电路。
在这里，PFC单元的实际功能有很多，包括工频交流电接入之后的前级滤波、整流滤波、升压等，最终输出高压直流。PFC单元后面的DC-DC，是把PFC单元输出的高压直流电通过开关的控制转换成高压脉冲，经过变压器转换成低压脉冲，经过后侧的整流滤波，再把低压脉冲转换成低压直流。辅路输出是控制板的电源，上电默认处于打开状态。控制板上电后开机启动，并给算力板上的存储单元供电，同时读取存储单元里面的信息，获取算力板的型号，查找出相对应的主路电压值，把需要的配置信息发送给电源的控制模块。控制模块根据控制板提供的信息控制开关切换单元，以将可变匝数变压器单元切换到所需要的匝数比，然后控制板在需要的时候发送开机指令，电压会打开主路输出电压。
本申请实施例还提供了一种宽电压输入输出方法，该方法用于上述实施例的数据处理设备，该宽电压输入输出方法主要包括以下步骤：
步骤a1、控制板供电电路(辅路输出)接通电源，数据处理设备的控制板启动，读取算力板的非易失存储器(存储)，获得算力板的预设工作电压值；
步骤a2、控制板根据算力板的预设工作电压值生成配置信息并发送给AC-DC电源的 控制模块；
步骤a3、AC-DC电源的控制模块根据控制板发来的配置信息控制开关切换单元接通相应的第一连接端；
步骤a4、控制板向AC-DC电源的控制模块发送开机指令，在控制模块控制下，PFC单元通入工频交流电网供电，并经由桥式电路、谐振槽电路和整流滤波得到驱动算力板工作的直流电以驱动算力板上电；
步骤a5、算力板在整流电路输出的直流电的供电电压下工作。
采用本申请实施例的谐振槽电路、宽电压输入输出电源和电子设备，能够在上电过程中根据工频交流电网的电压值和用电负载的预设工作电压值进行宽范围的适应性调节，调节方式包括：在变压器部分的输入端线圈增加多个连接端，并利用开关切换单元在多个连接端之间进行切换，以改变变压器部分的输入端线圈和输出端线圈的匝数比，从而实现了在上电过程中将工频交流电网的电压值调节至用电负载的工作电压值，确保了开机后用电负载的正常运行。本申请实施例中，通过对输入端线圈的连接端数量的设置以及对匝数比的设置，能够兼容多个工频交流电网的电压值和多个电负载的工作电压值，实现了宽电压范围的输入输出调节，因此本申请实施例能够满足宽范围工频交流电网的电压值和用电负载工作电压值的使用需求，确保了同一种电源适用于多种电子设备的正常工作，减少了电源型号的种类和数量，降低了电源管理的难度和运营成本。
以上所述仅为本申请的实施例，并不用以限制本申请，凡在本申请的精神和原则之内，所做的任何修改、等同替换、改进等，均应包含在本申请保护的范围之内。

Claims (9)

  1. 一种谐振槽电路，包括：
    可变匝数变压器单元，所述可变匝数变压器单元具有输入端线圈和输出端线圈，所述输入端线圈包括至少两个第一连接端和一个第二连接端，其中，每个所述第一连接端均与所述第二连接端通过所述输入端线圈连接，并且，每个所述第一连接端和所述第二连接端之间的线圈匝数不相等；
    开关切换单元，所述开关切换单元具有控制端、一个第一输入端和至少两个第一输出端，所述第一输出端的数量与所述第一连接端的数量相等，并且所述第一输出端与所述第一连接端一对一电连接，所述开关切换单元用于根据所述控制端所接收的控制信号接通所述至少两个第一输出端中的其中之一与所述第一输入端之间的电路连接。
  2. 根据权利要求1所述的谐振槽电路，其中，
    所述开关切换单元为继电器。
  3. 根据权利要求1所述的谐振槽电路，其中，
    所述输入端线圈为一个；
    所述输入端线圈的一个端部为所述至少两个第一连接端的其中之一；
    所述输入端线圈的另一个端部为所述第二连接端；
    除所述输入端线圈的一个端部的第一连接端以外的其它第一连接端由所述输入端线圈的中段部分引出。
  4. 一种宽电压输入输出电源，包括：
    如权利要求1至3任一项所述的谐振槽电路；
    方波直流产生电路，所述方波直流产生电路电连接于所述第二连接端和所述第一输入端，所述方波直流产生电路用于接入工频交流电网并将所述工频交流电网的交流供电调整为方波直流电并输出给所述谐振槽电路；
    整流电路，所述整流电路电连接于所述输出端线圈，所述整流电路用于接入用电负载并将所述输出端线圈所输出的电能调整为直流电并输出给所述用电负载；以及，
    控制模块，所述控制模块电连接于所述控制端，所述控制模块用于根据所接入的工频交流电网的电压值和所述用电负载的预设工作电压值产生所述控制信号。
  5. 根据权利要求4所述的宽电压输入输出电源，其中，所述方波直流产生电路包括：
    功率因数校正PFC单元，所述PFC单元用于接入工频交流电网并将所述工频交流电网的交流电调整为直流电；
    桥式电路单元，所述桥式电路单元电连接于所述PFC单元和所述谐振槽电路之间，所述桥式电路单元用于将所述PFC单元输出的直流电调整为方波直流电并输出给所述谐振槽电路。
  6. 一种电子设备，包括：
    如权利要求4或5所述的宽电压输入输出电源；
    用电负载，所述用电负载电连接于所述整流电路；
    负载电压提供单元，所述负载电压提供单元电连接于所述控制模块，以将所述工频交流电网的电压值和所述用电负载的预设工作电压值发送给所述控制模块。
  7. 根据权利要求6所述的电子设备，其中，
    所述电子设备为用于虚拟货币的数据处理设备，所述用电负载为算力板，所述负载电压提供单元为控制板。
  8. 根据权利要求7所述的电子设备，其中，
    所述控制板与所述算力板通信连接；
    所述算力板设置有用于存储其性能参数的非易失存储器，所述算力板的预设工作电压值包含于所述性能参数中；
    所述控制板通过读取所述非易失存储器中的性能参数而获取所述算力板的预设工作电压值。
  9. 根据权利要求8所述的电子设备，其中，所述宽电压输入输出电源还包括：
    控制板供电电路，所述控制板供电电路电连接于所述控制板，所述控制板供电电路用于接入所述工频交流电网并对所述控制板供电。
PCT/CN2021/098828 2020-12-17 2021-06-08 谐振槽电路、宽电压输入输出电源和电子设备 WO2022127049A1 (zh)

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