CN112994466B - Converter with wide voltage regulation range - Google Patents
Converter with wide voltage regulation range Download PDFInfo
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- CN112994466B CN112994466B CN202110201776.XA CN202110201776A CN112994466B CN 112994466 B CN112994466 B CN 112994466B CN 202110201776 A CN202110201776 A CN 202110201776A CN 112994466 B CN112994466 B CN 112994466B
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- 239000003990 capacitor Substances 0.000 claims abstract description 54
- 238000004804 winding Methods 0.000 claims abstract description 46
- 230000001105 regulatory effect Effects 0.000 claims abstract description 33
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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
- 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
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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
- H02M3/00—Conversion of DC power input into DC power output
- H02M3/02—Conversion of DC power input into DC power output without intermediate conversion into AC
- H02M3/04—Conversion of DC power input into DC power output without intermediate conversion into AC by static converters
- H02M3/10—Conversion of DC power input into DC power output without intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M3/145—Conversion of DC power input into DC power output without intermediate conversion into AC 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
- H02M3/155—Conversion of DC power input into DC power output without intermediate conversion into AC 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
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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
- H02M7/00—Conversion of AC power input into DC power output; Conversion of DC power input into AC power output
- H02M7/42—Conversion of DC power input into AC power output without possibility of reversal
- H02M7/44—Conversion of DC power input into AC power output without possibility of reversal by static converters
- H02M7/48—Conversion of DC power input into AC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M7/53—Conversion of DC power input into AC 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
- H02M7/537—Conversion of DC power input into AC 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, e.g. single switched pulse inverters
- H02M7/5387—Conversion of DC power input into AC 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, e.g. single switched pulse inverters in a bridge configuration
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Dc-Dc Converters (AREA)
Abstract
本发明公开了一种宽调压范围的变换器，包括位于变换器原边侧的第一逆变电路和原边绕组，位于变换器副边侧的第一整流电路和副边绕组以及DC/DC调压电路；DC/DC调压电路串联至第一逆变电路；第一逆变电路的一端串联所述DC/DC调压电路，第一逆变电路的输入端接有电容，DC/DC调压电路的输入端接有电容，DC/DC调压电路并联至少两个第二逆变电路，每个第二逆变电路的输入端均接有电容；第一、第二逆变电路的输出端均接有对应的绕组。本发明将输入电压或输出电压利用多个逆变电路并联连接DC/DC调压电路，或多个整流电路并联连接DC/DC调压电路进行分压，在宽范围调压时能实现更高的效率和功率密度；并且，可根据电路需求，调整逆变电路和整流电路的个数。
The invention discloses a converter with a wide voltage regulation range, comprising a first inverter circuit and a primary winding located on the primary side of the converter, a first rectifier circuit and a secondary winding located on the secondary side of the converter, and a DC/ DC voltage regulating circuit; the DC/DC voltage regulating circuit is connected in series with the first inverter circuit; one end of the first inverter circuit is connected in series with the DC/DC voltage regulating circuit, the input end of the first inverter circuit is connected with a capacitor, and the DC/DC The input end of the DC voltage regulation circuit is connected with a capacitor, the DC/DC voltage regulation circuit is connected in parallel with at least two second inverter circuits, and the input end of each second inverter circuit is connected with a capacitor; the first and second inverter circuits The output terminals are connected with corresponding windings. In the invention, the input voltage or output voltage is connected in parallel with a DC/DC voltage regulator circuit by using multiple inverter circuits, or a plurality of rectifier circuits are connected in parallel with the DC/DC voltage regulator circuit to divide the voltage, which can achieve higher voltage regulation in a wide range. and the number of inverter circuits and rectifier circuits can be adjusted according to circuit requirements.
Description
技术领域technical field
本发明涉及一种变换器，具体涉及一种宽调压范围的变换器。The invention relates to a converter, in particular to a converter with a wide voltage regulation range.
背景技术Background technique
目前的调压电路，如图1所示，直流变压器和DC/DC调压电路级联的两级式方案，所有的输出功率都流过两级变换器，整体损耗较高，并且由于DC/DC调压电路的范围较宽，电路中电感秒伏大，导致变换器的功率密度和效率的提升受到限制；如图2所示，对输出电压利用单级隔离型DC/DC调压电路进行调节，只能在某一特定的工作电压下实现较高的效率，但是当电路的工作电压偏离上述特定的工作电压时，变换器的效率将显著降低，且工作电压偏离越远，变换器的效率就越低。The current voltage regulation circuit, as shown in Figure 1, is a two-stage scheme in which the DC transformer and the DC/DC voltage regulation circuit are cascaded. All the output power flows through the two-stage converter, and the overall loss is relatively high. The range of the DC voltage regulator circuit is wide, and the inductance in the circuit is large, which limits the power density and efficiency of the converter. However, when the working voltage of the circuit deviates from the above-mentioned specific working voltage, the efficiency of the converter will be significantly reduced, and the farther the working voltage deviates, the higher the efficiency of the converter. The lower the efficiency.
发明内容SUMMARY OF THE INVENTION
本发明针对现有技术中的元件承受电压高、变换器效率低的缺点，提供了一种能够提升工作效率的宽调压范围的变换器。Aiming at the disadvantages of high withstand voltage of components and low converter efficiency in the prior art, the present invention provides a converter with a wide voltage regulation range capable of improving work efficiency.
为了解决上述技术问题，本发明通过下述技术方案得以解决：In order to solve the above-mentioned technical problems, the present invention is solved by the following technical solutions:
一种宽调压范围的变换器，包括位于变换器原边侧的第一逆变电路和原边绕组，位于变换器副边侧的第一整流电路和副边绕组以及DC/DC调压电路；所述DC/DC调压电路串联至所述第一逆变电路或/和所述第一整流电路的一端；其中，串联第一逆变电路的所述DC/DC调压电路并联至少两个第二逆变电路；串联第一整流电路的所述DC/DC调压电路并联至少两个第二整流电路。A converter with a wide voltage regulation range, comprising a first inverter circuit and a primary winding located on the primary side of the converter, a first rectifier circuit and a secondary winding located on the secondary side of the converter, and a DC/DC voltage regulating circuit ; The DC/DC voltage regulator circuit is connected in series to one end of the first inverter circuit or/and the first rectifier circuit; wherein, the DC/DC voltage regulator circuit connected in series with the first inverter circuit is connected in parallel with at least two a second inverter circuit; at least two second rectifier circuits are connected in parallel with the DC/DC voltage regulator circuit connected in series with the first rectifier circuit.
进一步地，所述第一逆变电路的一端串联所述DC/DC调压电路，所述第一逆变电路的输入端接有电容，所述DC/DC调压电路的输入端接有电容，所述DC/DC调压电路并联至少两个第二逆变电路，每个所述第二逆变电路的输入端均接有电容；所述第一逆变电路和第二逆变电路的输出端均接有对应的绕组。Further, one end of the first inverter circuit is connected in series with the DC/DC voltage regulator circuit, the input end of the first inverter circuit is connected with a capacitor, and the input end of the DC/DC voltage regulator circuit is connected with a capacitor , the DC/DC voltage regulator circuit is connected in parallel with at least two second inverter circuits, and the input terminals of each of the second inverter circuits are connected with capacitors; The output terminals are connected with corresponding windings.
进一步地，所述第一整流电路的一端串联所述DC/DC调压电路，所述第一整流电路的输出端接有电容，所述DC/DC调压电路的输出端接有电容，所述DC/DC调压电路并联至少两个第二整流电路，每个所述第二整流电路的输出端均接有电容；所述第一整流电路和第二整流电路的输入端均接有对应的绕组。Further, one end of the first rectifier circuit is connected in series with the DC/DC voltage regulator circuit, the output end of the first rectifier circuit is connected with a capacitor, and the output end of the DC/DC voltage regulator circuit is connected with a capacitor, so The DC/DC voltage regulating circuit is connected in parallel with at least two second rectifier circuits, and each output end of the second rectifier circuit is connected with a capacitor; the input ends of the first rectifier circuit and the second rectifier circuit are connected with corresponding winding.
进一步地，所述第一逆变电路串联多个DC/DC调压电路，所述第一整流电路串联多个DC/DC调压电路。Further, the first inverter circuit is connected in series with a plurality of DC/DC voltage regulator circuits, and the first rectifier circuit is connected in series with a plurality of DC/DC voltage regulator circuits.
进一步地，所述DC/DC调压电路为降压型电路、升压型电路或升降压型电路。Further, the DC/DC voltage regulating circuit is a buck circuit, a boost circuit or a buck-boost circuit.
进一步地，所述第一逆变电路和第二逆变电路为半桥逆变电路、全桥逆变电路或推挽逆变电路。Further, the first inverter circuit and the second inverter circuit are a half-bridge inverter circuit, a full-bridge inverter circuit or a push-pull inverter circuit.
进一步地，所述第一整流电路和第二整流电路为中心抽头整流电路、倍压整流电路或全桥整流电路。Further, the first rectifier circuit and the second rectifier circuit are a center-tapped rectifier circuit, a voltage doubler rectifier circuit or a full-bridge rectifier circuit.
进一步地，所述降压型电路、升压型电路和升降压型电路分别包含滤波电感和多组半桥电路或全桥电路。Further, the step-down circuit, the step-up circuit and the step-up and step-down circuit respectively comprise filter inductors and multiple sets of half-bridge circuits or full-bridge circuits.
进一步地，所述第一、第二逆变电路、第一、第二整流电路以及DC/DC调压电路中均包含功率管，所述功率管类型为MOSFET、IGBT、HEMT、IGCT、GTO、GTR、晶闸管或二极管。Further, the first and second inverter circuits, the first and second rectifier circuits, and the DC/DC voltage regulating circuit all include power tubes, and the power tubes are of MOSFET, IGBT, HEMT, IGCT, GTO, GTR, thyristor or diode.
进一步地，所述原边绕组与其他变换器的原边绕组并联，或所述第一逆变电路与其他变换器的第一逆变电路的输入侧并联，或所述第二逆变电路的输入侧与其他变换器的第二逆变电路的输入侧并联；所述副边绕组与其他变换器的副边绕组并联，或所述第一整流电路输出侧与其他变换器的第一整流电路的输出侧并联，或所述第二整流电路输出侧与其他变换器的第二整流电路的输出侧并联，实现多个变换器共同工作。Further, the primary winding is connected in parallel with the primary windings of other converters, or the first inverter circuit is connected in parallel with the input side of the first inverter circuit of other converters, or the second inverter circuit is connected in parallel. The input side is connected in parallel with the input side of the second inverter circuit of other converters; the secondary winding is connected in parallel with the secondary windings of other converters, or the output side of the first rectifier circuit is connected with the first rectifier circuit of other converters The output sides of the second rectifier circuit are connected in parallel, or the output side of the second rectifier circuit is connected in parallel with the output sides of the second rectifier circuits of other converters, so that multiple converters work together.
本发明由于采用了以上技术方案，具有以下益处：The present invention has the following benefits due to the adoption of the above technical solutions:
本发明将输入电压或输出电压利用多个逆变电路并联连接DC/DC调压电路，或多个整流电路并联连接DC/DC调压电路进行分压，通过在输入端或输出端引入的调压部分，可以根据输入或输出的实际需求在输入端或输出端分别进行宽范围的调节，相较现有的变换器，在宽范围调压时能实现更高的效率和功率密度；并且可根据电路需求，选择合适的调压电路或改变逆变电路和整流电路的个数，更灵活地进行电压调节。In the present invention, the input voltage or output voltage is connected in parallel with a DC/DC voltage regulating circuit by using multiple inverter circuits, or a plurality of rectifier circuits are connected in parallel with the DC/DC voltage regulating circuit to divide the voltage. The voltage part can be adjusted in a wide range at the input end or the output end respectively according to the actual needs of the input or output. Compared with the existing converters, higher efficiency and power density can be achieved when the voltage is adjusted in a wide range; According to the circuit requirements, select the appropriate voltage regulator circuit or change the number of inverter circuits and rectifier circuits to adjust the voltage more flexibly.
附图说明Description of drawings
为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动性的前提下，还可以根据这些附图获得其他的附图。In order to illustrate the embodiments of the present invention or the technical solutions in the prior art more clearly, the following briefly introduces the accompanying drawings that are used in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only These are some embodiments of the present invention, and for those of ordinary skill in the art, other drawings can also be obtained from these drawings without any creative effort.
图1是现有技术中的变换器；Fig. 1 is a converter in the prior art;
图2是现有技术中的另一种变换器；Fig. 2 is another kind of converter in the prior art;
图3是实施例1披露的宽调压范围的变换器；Fig. 3 is the converter of wide voltage regulation range disclosed in
图4是实施例1披露的宽调压范围的图3的顺序变形；Fig. 4 is the sequential deformation of Fig. 3 of the wide voltage regulation range disclosed in
图5是实施例2披露的宽调压范围的变换器；Fig. 5 is the converter of wide voltage regulation range disclosed in
图6是实施例3披露的宽调压范围的变换器；Fig. 6 is the converter of wide voltage regulation range disclosed in embodiment 3;
图7是实施例4披露的宽调压范围的变换器；Fig. 7 is the converter of wide voltage regulation range disclosed in embodiment 4;
图8是实施例5披露的宽调压范围的变换器；Fig. 8 is the converter of the wide voltage regulation range disclosed in embodiment 5;
图9是DC/DC调压电路的一种降压型电路；Figure 9 is a step-down circuit of the DC/DC voltage regulator circuit;
图10是DC/DC调压电路的一种升压型电路；Figure 10 is a step-up circuit of the DC/DC voltage regulator circuit;
图11是实施例6披露的宽调压范围的变换器。FIG. 11 is a converter with a wide voltage regulation range disclosed in Embodiment 6. FIG.
具体实施方式Detailed ways
下面结合实施例对本发明做进一步的详细说明，以下实施例是对本发明的解释，而本发明并不局限于以下实施例。The present invention will be further described in detail below in conjunction with the examples. The following examples are to explain the present invention, but the present invention is not limited to the following examples.
实施例1Example 1
作为一种实施例，如图3所示，一种宽调压范围的变换器，包括位于变换器原边侧的逆变电路Inv.和原边绕组P，逆变电路Inv.的输入端接有电容，以及位于变换器副边侧的Rec.B整流电路和DC/DC调压电路、Rec.A1整流电路、Rec.An整流电路。Rec.B整流电路输入端连接绕组SB，输出端连接电容COB。DC/DC调压电路并联有Rec.A1整流电路和Rec.An整流电路，绕组SA1和SAn分别连接对应的整流电路Rec.A1和整流电路Rec.An，整流电路Rec.A1和整流电路Rec.An各自的输出端都连接有输出电容。As an embodiment, as shown in FIG. 3, a converter with a wide voltage regulation range includes an inverter circuit Inv. and a primary winding P located on the primary side of the converter, and the input terminal of the inverter circuit Inv. There are capacitors, Rec.B rectifier circuit and DC/DC voltage regulator circuit, Rec.A1 rectifier circuit and Rec.An rectifier circuit located on the secondary side of the converter. The input end of the Rec.B rectifier circuit is connected to the winding S B , and the output end is connected to the capacitor C OB . The DC/DC voltage regulating circuit is connected in parallel with the Rec.A1 rectifier circuit and the Rec.An rectifier circuit. The windings S A1 and S An are respectively connected to the corresponding rectifier circuit Rec.A1 and the rectifier circuit Rec.An, and the rectifier circuit Rec.A1 and the rectifier circuit respectively. The respective output terminals of Rec.An are connected with output capacitors.
DC/DC调压电路并联有电容COC，并与Rec.B整流电路的输出端OB相接，由COC与COB串联承担输出电压Vo。The DC/DC voltage regulating circuit is connected with a capacitor C OC in parallel, and is connected to the output end OB of the Rec.B rectifier circuit, and the output voltage V o is borne by the C OC and C OB in series.
本实施例中的DC/DC调压电路也可以并联两个以上整流电路，每个整流电路均接有电容。The DC/DC voltage regulating circuit in this embodiment can also be connected in parallel with more than two rectifier circuits, and each rectifier circuit is connected with a capacitor.
如图4所示，本实施例中的Rec.B整流电路和DC/DC调压电路也可以交换位置，由Rec.B整流电路的输出电容COB接输出地SGND，COC再串联至DC/DC的输出电容COC，最后接到输出Vo的正端。As shown in FIG. 4 , the Rec.B rectifier circuit and the DC/DC voltage regulating circuit in this embodiment can also exchange positions, and the output capacitor C OB of the Rec.B rectifier circuit is connected to the output ground SGND, and C OC is then connected in series to DC The output capacitor C OC of /DC is finally connected to the positive terminal of the output V o .
本实施例中的DC/DC调压电路可以为如图9所示的降压型电路，也可以替换为升压型电路或是升降压型电路。The DC/DC voltage regulating circuit in this embodiment may be a step-down circuit as shown in FIG. 9 , and may also be replaced by a step-up circuit or a buck-boost circuit.
实施例2Example 2
作为一种实施例，如图5所示，一种宽调压范围的变换器，包括位于变换器原边侧的逆变电路Inv.和原边绕组P，逆变电路Inv.的输入端接有电容，以及位于变换器副边侧的Rec.B整流电路和DC/DC调压电路、四个整流电路。Rec.B整流电路和两个DC/DC调压电路串联，其分别记做DC/DC1和DC/DC2。DC/DC1调压电路至少并联有Rec.A1整流电路和Rec.Am整流电路，绕组SA1和SAm分别连接对应的整流电路Rec.A1和整流电路Rec.Am，整流电路Rec.A1和整流电路Rec.Am各自的输出端都连接有输出电容。As an embodiment, as shown in FIG. 5, a converter with a wide voltage regulation range includes an inverter circuit Inv. and a primary winding P located on the primary side of the converter, and the input terminal of the inverter circuit Inv. There are capacitors, Rec.B rectifier circuit and DC/DC voltage regulator circuit and four rectifier circuits located on the secondary side of the converter. The Rec.B rectifier circuit is connected in series with two DC/DC voltage regulator circuits, which are denoted as DC/DC1 and DC/DC2 respectively. The DC/DC1 voltage regulator circuit is connected in parallel with at least a Rec.A1 rectifier circuit and a Rec.Am rectifier circuit, and the windings SA1 and SAm are respectively connected to the corresponding rectifier circuit Rec.A1 and rectifier circuit Rec.Am, rectifier circuit Rec.A1 and rectifier circuit Rec Each output terminal of .Am is connected with an output capacitor.
DC/DC2调压电路至少并联有Rec.An整流电路和Rec.An1整流电路，绕组SAn和SAn1分别连接对应的整流电路Rec.An和整流电路Rec.An1，整流电路Rec.An和整流电路Rec.An1各自的输出端都连接有输出电容。The DC/DC2 voltage regulating circuit is connected with at least a Rec.An rectifier circuit and a Rec.An1 rectifier circuit in parallel, and the windings S An and S An1 are respectively connected to the corresponding rectifier circuit Rec.An and rectifier circuit Rec.An1, rectifier circuit Rec.An and rectifier circuit Each output terminal of the circuit Rec.An1 is connected with an output capacitor.
然后将输出地先接至DC/DC1电路的输出电容COC1，COC1再串联至整流电路Rec.B的输出电容COB，COB再串联至DC/DC2电路的输出电容COC2，最后接到输出Vo的正端。Then connect the output ground to the output capacitor C OC1 of the DC/DC1 circuit first, C OC1 is then connected in series to the output capacitor C OB of the rectifier circuit Rec.B, and C OB is connected in series to the output capacitor C OC2 of the DC/DC2 circuit, and finally connected to the positive terminal of output V o .
实施例3Example 3
一种宽调压范围的变换器，如图6所示，包括位于变换器副边侧的整流电路Rec.和副边绕组S，整流电路Rec.输出端接有电容，以及位于变换器原边侧的Inv.B逆变电路和DC/DC调压电路、逆变电路Inv.A1和逆变电路Inv.An。Inv.B逆变电路输出端连接绕组PB、输入端连接电容CInB。DC/DC调压电路并联有Inv.A1逆变电路和Inv.An逆变电路，绕组PA1和绕组PAn分别连接对应的逆变电路Inv.A1和逆变电路Inv.An，逆变电路Inv.A1和逆变电路Inv.An各自的输入端都并联接入同一DC/DC调压电路，且每个逆变电路和DC/DC调压电路间均连接有电容。A converter with a wide voltage regulation range, as shown in Figure 6, includes a rectifier circuit Rec. and a secondary winding S located on the secondary side of the converter. The output end of the rectifier circuit Rec. is connected with a capacitor, and is located on the primary side of the converter. Inv.B inverter circuit and DC/DC voltage regulator circuit, inverter circuit Inv.A1 and inverter circuit Inv.An on the side. The output end of the Inv.B inverter circuit is connected to the winding P B , and the input end is connected to the capacitor C InB . The DC/DC voltage regulating circuit is connected in parallel with the Inv.A1 inverter circuit and the Inv.An inverter circuit. The winding P A1 and the winding P An are respectively connected to the corresponding inverter circuit Inv.A1 and the inverter circuit Inv.An. The inverter circuit The respective input ends of the Inv.A1 and the inverter circuit Inv.An are connected to the same DC/DC voltage regulator circuit in parallel, and a capacitor is connected between each inverter circuit and the DC/DC voltage regulator circuit.
DC/DC调压电路并联有电容CInC，并与Inv.B逆变电路的输入端InB相接，由CInB与CInC串联承担输入电压Vin。The DC/DC voltage regulating circuit is connected with a capacitor C InC in parallel, and is connected to the input terminal In B of the Inv.B inverter circuit, and the input voltage V in is borne by C InB and C InC in series.
本实施例中的DC/DC调压电路也可以并联两个以上逆变电路，每个逆变电路均接有电容。The DC/DC voltage regulating circuit in this embodiment can also be connected in parallel with more than two inverter circuits, and each inverter circuit is connected with a capacitor.
本实施例中的DC/DC调压电路可以为如图10所示的升压型电路，也可以替换为降压型电路或是升降压型电路。The DC/DC voltage regulator circuit in this embodiment may be a boost-type circuit as shown in FIG. 10 , and may also be replaced with a buck-type circuit or a buck-boost circuit.
实施例4Example 4
作为一种实施例，如图7所示，一种宽调压范围的变换器，包括位于变换器原边侧的Inv.B逆变电路和DC/DCIn调压电路、逆变电路Inv.A1和逆变电路Inv.An，以及位于变换器副边侧的Rec.B整流电路和DC/DCOut调压电路、Rec.A1整流电路、Rec.An整流电路。Inv.B逆变电路输出端连接绕组PB、输入端连接电容CInB。DC/DCIn调压电路并联有Inv.A1逆变电路和Inv.An逆变电路，绕组PA1和绕组PAn分别连接对应的逆变电路Inv.A1和逆变电路Inv.An，逆变电路Inv.A1和逆变电路Inv.An各自的输入端都并联接入同一DC/DCIn调压电路，且每个逆变电路和DC/DCIn调压电路间均连接有电容。As an embodiment, as shown in FIG. 7 , a converter with a wide voltage regulation range includes an Inv.B inverter circuit, a DC/DC In voltage regulation circuit, and an inverter circuit Inv. B located on the primary side of the converter. A1 and inverter circuit Inv.An, and Rec.B rectifier circuit and DC/DC Out voltage regulator circuit, Rec.A1 rectifier circuit and Rec.An rectifier circuit located on the secondary side of the converter. The output end of the Inv.B inverter circuit is connected to the winding P B , and the input end is connected to the capacitor C InB . The DC/DC In voltage regulating circuit is connected in parallel with the Inv.A1 inverter circuit and the Inv.An inverter circuit. The winding P A1 and the winding P An are connected to the corresponding inverter circuit Inv.A1 and the inverter circuit Inv.An respectively. The respective input ends of the circuit Inv.A1 and the inverter circuit Inv.An are connected in parallel to the same DC/DC In voltage regulating circuit, and a capacitor is connected between each inverter circuit and the DC/DC In voltage regulating circuit.
DC/DCIn调压电路并联有电容CInC，并与Inv.B逆变电路的输入端InB相接，由CInB与CInC串联承担输入电压Vin。The DC/DC In voltage regulating circuit is connected with a capacitor C InC in parallel, and is connected to the input terminal In B of the Inv.B inverter circuit, and the input voltage V in is borne by C InB and C InC in series.
Rec.B整流电路输入端连接绕组SB，输出端连接电容COB。DC/DCOut调压电路并联有Rec.A1整流电路和Rec.An整流电路，绕组SA1和SAn分别连接对应的整流电路Rec.A1和整流电路Rec.An，整流电路Rec.A1和整流电路Rec.An各自的输出端都连接有输出电容。The input end of the Rec.B rectifier circuit is connected to the winding S B , and the output end is connected to the capacitor C OB . The DC/DC Out voltage regulating circuit is connected in parallel with the Rec.A1 rectifier circuit and the Rec.An rectifier circuit. The windings S A1 and S An are respectively connected to the corresponding rectifier circuit Rec.A1 and the rectifier circuit Rec.An, and the rectifier circuit Rec.A1 and the rectifier circuit respectively. Each output terminal of the circuit Rec.An is connected with an output capacitor.
DC/DCOut调压电路并联有电容COC，并与Rec.B整流电路的输出端OB相接，由COC与COB串联承担输出电压Vo。The DC/DC Out voltage regulating circuit is connected with a capacitor C OC in parallel, and is connected with the output terminal OB of the Rec.B rectifier circuit, and the output voltage V o is assumed by the C OC and C OB in series.
本实施例中的DC/DCIn调压电路也可以并联两个以上逆变电路，每个逆变电路均接有电容；DC/DCOut调压电路也可以并联两个以上整流电路，每个整流电路均接有电容。The DC/DC In voltage regulating circuit in this embodiment can also be connected in parallel with two or more inverter circuits, and each inverter circuit is connected with a capacitor; the DC/DC Out voltage regulating circuit can also be connected in parallel with more than two rectifier circuits, each The rectifier circuits are all connected with capacitors.
实施例5Example 5
作为一种实施例，如图8所示，一种宽调压范围的变换器，包括位于变换器原边侧的逆变电路Inv.和原边绕组P，逆变电路Inv.的输入端接有电容，以及位于变换器副边侧的Rec.B整流电路和DC/DC调压电路、Rec.A1整流电路、Rec.An整流电路。Rec.B整流电路输入端连接绕组SB，输出端连接电容COB。DC/DC调压电路并联有Rec.A1整流电路和Rec.An整流电路，绕组SA1和SAn分别连接对应的整流电路Rec.A1和整流电路Rec.An，整流电路Rec.A1和整流电路Rec.An各自的输出端都连接有输出电容。As an embodiment, as shown in FIG. 8 , a converter with a wide voltage regulation range includes an inverter circuit Inv. and a primary winding P located on the primary side of the converter, and the input terminal of the inverter circuit Inv. There are capacitors, Rec.B rectifier circuit and DC/DC voltage regulator circuit, Rec.A1 rectifier circuit and Rec.An rectifier circuit located on the secondary side of the converter. The input end of the Rec.B rectifier circuit is connected to the winding S B , and the output end is connected to the capacitor C OB . The DC/DC voltage regulating circuit is connected in parallel with the Rec.A1 rectifier circuit and the Rec.An rectifier circuit. The windings S A1 and S An are respectively connected to the corresponding rectifier circuit Rec.A1 and the rectifier circuit Rec.An, and the rectifier circuit Rec.A1 and the rectifier circuit respectively. The respective output terminals of Rec.An are connected with output capacitors.
如图中虚线框所示(图9为虚线框中电路的放大图)，DC/DC调压电路为多电平降压型Buck电路，其中包括两组半桥电路，半桥电路RAn的桥臂中点经电感L接至DC/DC调压电路的输出电容CC，并与Rec.B整流电路的输出端OB相接，由CC与CB串联承担输出电压Vo，半桥电路RA1的输出端OA1接至整个变换器的输出地SGND。As shown in the dashed box in the figure (Figure 9 is an enlarged view of the circuit in the dashed box), the DC/DC voltage regulator circuit is a multi-level step-down Buck circuit, which includes two sets of half-bridge circuits, the bridge of the half-bridge circuit RAn The midpoint of the arm is connected to the output capacitor C C of the DC/DC voltage regulator circuit through the inductor L, and is connected to the output terminal OB of the Rec.B rectifier circuit, and the output voltage V o is borne by C C and C B in series, and the half-bridge The output terminal O A1 of the circuit RA1 is connected to the output ground SGND of the entire converter.
该实施例中的半桥电路中的功率管类型可以是MOSFET、IGBT、HEMT、IGCT、GTO、GTR、晶闸管或二极管。The type of power transistor in the half-bridge circuit in this embodiment may be MOSFET, IGBT, HEMT, IGCT, GTO, GTR, thyristor or diode.
该实施例中，DC/DC调压电路可以包括两组以上的半桥电路，第一个半桥电路的桥臂中点经电感L与Rec.B整流电路的输出点连接，并且前一个半桥电路的半桥参考地连接后一个半桥电路的桥臂中点，最后一个半桥电路的半桥参考地连接最终的输出地SGND。In this embodiment, the DC/DC voltage regulating circuit may include more than two sets of half-bridge circuits, the midpoint of the bridge arm of the first half-bridge circuit is connected to the output point of the Rec. The half-bridge reference ground of the bridge circuit is connected to the midpoint of the bridge arm of the latter half-bridge circuit, and the half-bridge reference ground of the last half-bridge circuit is connected to the final output ground SGND.
实施例6Example 6
如图11所示，本实施例为实施例1中图3的具体结构的其中一种。位于变换器原边侧的逆变电路Inv.包括半桥电路以及由电感Lr和电容Cr组成的谐振电路。半桥电路的桥臂中点经电感Lr接原边绕组P并经电容Cr连接半桥电路参考地形成回路。原边侧的逆变电路可以由上述的多个逆变电路Inv.串联而成。位于变换器副边侧的Rec.B整流电路包括半桥电路以及由电感和电容组成的谐振电路。半桥电路的桥臂中点经电感接绕组SB并经电容连接半桥电路的半桥参考地形成回路构成一个整流电路。As shown in FIG. 11 , this embodiment is one of the specific structures of FIG. 3 in the first embodiment. The inverter circuit Inv. on the primary side of the converter includes a half-bridge circuit and a resonant circuit composed of an inductor L r and a capacitor Cr. The midpoint of the bridge arm of the half-bridge circuit is connected to the primary winding P through the inductor L r and is connected to the reference ground of the half-bridge circuit through the capacitor Cr to form a loop. The inverter circuit on the primary side can be formed by connecting a plurality of inverter circuits Inv. described above in series. The Rec.B rectifier circuit on the secondary side of the converter includes a half-bridge circuit and a resonant circuit composed of inductors and capacitors. The midpoint of the bridge arm of the half-bridge circuit is connected to the winding SB through an inductor and is connected to the reference ground of the half-bridge of the half-bridge circuit through a capacitor to form a loop to form a rectifier circuit.
整流电路Rec.A1和整流电路Rec.An分别包含半桥电路和对应的谐振电路，半桥电路的桥臂中点经电感接绕组并经电容连接半桥电路的半桥参考地形成回路构成一个整流电路。The rectifier circuit Rec.A1 and the rectifier circuit Rec.An respectively include a half-bridge circuit and a corresponding resonant circuit. The midpoint of the bridge arm of the half-bridge circuit is connected to the winding through an inductor and is connected to the reference ground of the half-bridge circuit through a capacitor to form a loop to form a circuit. rectifier circuit.
DC/DC调压电路包括两个半桥电路，第一个半桥电路的桥臂中点经电感接至DC/DC调压电路的输出电容，并与Rec.B整流电路的输出端相接，第一个半桥电路的半桥参考地连接第二个半桥电路的桥臂中点，第二个半桥电路的半桥参考地接至整个变换器的输出地SGND。The DC/DC voltage regulator circuit includes two half-bridge circuits. The midpoint of the bridge arm of the first half-bridge circuit is connected to the output capacitor of the DC/DC voltage regulator circuit through an inductor, and is connected to the output end of the Rec.B rectifier circuit. , the half-bridge reference ground of the first half-bridge circuit is connected to the midpoint of the bridge arm of the second half-bridge circuit, and the half-bridge reference ground of the second half-bridge circuit is connected to the output ground SGND of the entire converter.
上述所有实施例中，原边绕组与其他变换器的原边绕组并联，或第一逆变电路与其他变换器的第一逆变电路的输入侧并联，或第二逆变电路的输入侧与其他变换器的第二逆变电路的输入侧并联；所述副边绕组与其他变换器的副边绕组并联，或第一整流电路输出侧与其他变换器的第一整流电路的输出侧并联，或第二整流电路输出侧与其他变换器的第二整流电路的输出侧并联，实现多个变换器共同工作。In all the above embodiments, the primary winding is connected in parallel with the primary windings of other converters, or the first inverter circuit is connected in parallel with the input side of the first inverter circuit of other converters, or the input side of the second inverter circuit is connected to the input side of the first inverter circuit. The input sides of the second inverter circuits of other converters are connected in parallel; the secondary winding is connected in parallel with the secondary windings of other converters, or the output side of the first rectifier circuit is connected in parallel with the output sides of the first rectifier circuits of other converters, Or the output side of the second rectifier circuit is connected in parallel with the output sides of the second rectifier circuits of other converters, so that the multiple converters work together.
以上所描述的实施例仅仅是示意性的。可以根据实际的需要选择其中的部分或者全部模块来实现本实施例方案的目的。本领域普通技术人员在不付出创造性劳动的情况下，即可以理解并实施。The embodiments described above are merely illustrative. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution in this embodiment. Those of ordinary skill in the art can understand and implement it without creative effort.
以上所述仅是本申请的具体实施方式，应当指出，对于本技术领域的普通技术人员来说，在不脱离本申请原理的前提下，还可以做出若干改进和润饰，这些改进和润饰也应视为本申请的保护范围。The above are only specific embodiments of the present application. It should be pointed out that for those skilled in the art, without departing from the principles of the present application, several improvements and modifications can also be made. It should be regarded as the protection scope of this application.
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102185493A (en) * | 2011-05-17 | 2011-09-14 | 浙江大学 | Combined current transformer capable of realizing emergency regulation of output by series connection of high frequency AC sides |
| CN102723870A (en) * | 2012-06-21 | 2012-10-10 | 中国矿业大学(北京) | Input-series and output-series full-bridge high-frequency isolated bidirectional direct current / direct current (DC/DC) converter |
| CN103248231A (en) * | 2013-04-02 | 2013-08-14 | 浙江大学 | Multiphase current-sharing controlled parallel-connection adjusting circuit and control method |
| CN206620054U (en) * | 2016-10-28 | 2017-11-07 | 深圳朗必兴科技有限公司 | A kind of LLC low-frequency ripple suppression circuit, apparatus and system |
| CN108566093A (en) * | 2018-06-08 | 2018-09-21 | 矽力杰半导体技术(杭州)有限公司 | A kind of multiple input single output DC converter |
| CN111525809A (en) * | 2020-04-26 | 2020-08-11 | 南京理工大学 | A high frequency hybrid DC converter with adjustable output voltage |
| CN112087143A (en) * | 2020-08-21 | 2020-12-15 | 南京理工大学 | A quasi-parallel resonant converter with multi-terminal input and single-terminal output |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2364416A1 (en) * | 2000-12-18 | 2002-06-18 | Abb Industrie Ag | Converter system for increasing a dc voltage |
| EP1303032A3 (en) * | 2001-09-04 | 2005-02-09 | Philips Intellectual Property & Standards GmbH | Control device for a resonant converter |
| US9118259B2 (en) * | 2007-12-03 | 2015-08-25 | Texas Instruments Incorporated | Phase-shifted dual-bridge DC/DC converter with wide-range ZVS and zero circulating current |
| US9130462B2 (en) * | 2012-02-03 | 2015-09-08 | University Of Central Florida Research Foundation, Inc. | Resonant power converter having switched series transformer |
| JP5903628B2 (en) * | 2012-06-14 | 2016-04-13 | パナソニックＩｐマネジメント株式会社 | Power converter |
| CN205945524U (en) * | 2016-07-29 | 2017-02-08 | 嘉兴力德数控科技有限公司 | DC DC converter based on half -bridge contravariant |
| CN106602880A (en) * | 2016-10-28 | 2017-04-26 | 深圳朗兴智能云充有限公司 | Large power high efficiency thermal equilibrium LLC resonant converter and control method thereof |
| US10199947B2 (en) * | 2017-04-05 | 2019-02-05 | Futurewei Technologies, Inc. | Isolated partial power processing power converters |
| CN207968331U (en) * | 2018-03-21 | 2018-10-12 | 上海钧功电子科技有限公司 | A kind of wide scope converter |
| US10476398B1 (en) * | 2018-05-01 | 2019-11-12 | Postech Academy-Industry Foundation | Power conversion circuit for photovoltaic power generation with high efficiency over wide input voltage range |
-
2021
- 2021-02-23 CN CN202110201776.XA patent/CN112994466B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102185493A (en) * | 2011-05-17 | 2011-09-14 | 浙江大学 | Combined current transformer capable of realizing emergency regulation of output by series connection of high frequency AC sides |
| CN102723870A (en) * | 2012-06-21 | 2012-10-10 | 中国矿业大学(北京) | Input-series and output-series full-bridge high-frequency isolated bidirectional direct current / direct current (DC/DC) converter |
| CN103248231A (en) * | 2013-04-02 | 2013-08-14 | 浙江大学 | Multiphase current-sharing controlled parallel-connection adjusting circuit and control method |
| CN206620054U (en) * | 2016-10-28 | 2017-11-07 | 深圳朗必兴科技有限公司 | A kind of LLC low-frequency ripple suppression circuit, apparatus and system |
| CN108566093A (en) * | 2018-06-08 | 2018-09-21 | 矽力杰半导体技术(杭州)有限公司 | A kind of multiple input single output DC converter |
| CN111525809A (en) * | 2020-04-26 | 2020-08-11 | 南京理工大学 | A high frequency hybrid DC converter with adjustable output voltage |
| CN112087143A (en) * | 2020-08-21 | 2020-12-15 | 南京理工大学 | A quasi-parallel resonant converter with multi-terminal input and single-terminal output |
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|---|---|
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