KR102302613B1 - Voltage Multipliers for Center-Tab Rectifier and multipling method using thereof - Google Patents

Abstract

The present invention relates to the field of a rectifier circuit having a center-tap structure, and more particularly, to a voltage amplifying device for a center-tap rectifier having a voltage amplification gain of 3 times and 4 times, and an amplification method using the same. To this end, in the center-tap rectifier voltage amplifying device for amplifying the primary- _{side voltage (V 1} ) to the secondary-side output voltage (Vo), the first transformer tap connected in series with the _{capacitor (C D ) in which the voltage is accumulated} (N _s1 ); A second diode (D _s2) and a second transformer taps being series-connected (N _{s2); a first diode (D s1} ) having one end connected to each of the first transformer tap (N _s1 ) and the second transformer tap (N _s2 ), the other end representing the output voltage (Vo); A capacitor (C _D ), a second diode (D _s2 ), and a common ground connected to the output voltage (Vo); a center-tap rectifier voltage amplifying device is provided.

Description

Voltage multipliers for Center-Tab Rectifier and multipling method using thereof

The present invention relates to the field of a rectifier circuit having a center-tap structure, and more particularly, to a voltage amplifying device for a center-tap rectifier having a voltage amplification gain of 3 times and 4 times, and an amplification method using the same.

In general, a step-up DC-DC converter having a high step-up ratio is used in a battery-based tram, a hydrogen fuel cell-based propulsion power conversion device for a railway vehicle, and an ESS field.

For battery-based trams and hydrogen fuel cell-based railway vehicles, it is difficult to directly supply the high DC voltage required by the inverter for driving the traction motor due to the high price of batteries and hydrogen fuel cells and the space constraints inside the railway vehicle. Accordingly, there is a need for a DC-DC converter for boosting the low DC voltage of the battery and the hydrogen fuel cell to the high DC voltage required by the inverter.

1 is a circuit diagram of a secondary side of a voltage amplifying device (transformer) of a conventional center-tap rectifier. As shown in FIG. 1, since the voltage projected from the primary side to the secondary side becomes the output voltage, as shown in FIG. 1, if the winding (turn) ratio of the primary and secondary sides is 1:1, The output voltage Vo becomes one time, and the amplification gain becomes 1.

That is, in the rectifier circuit having a transformer of a conventional center-tap structure as shown in FIG. 1, if the primary and secondary side winding ratio of the transformer is 1:1, the primary side voltage and the secondary side output voltage ( _VO ) of the transformer are have the same value. Therefore, in order to boost the voltage using the existing rectifier circuit, the number of secondary windings needs to be increased. For example, if the ratio of the primary and secondary windings of the transformer to the primary _{voltage (V 1 ) of the transformer is 1: n, the output voltage (VO} ) in the conventional rectifier structure becomes nV ₁ .

However, in the conventional rectifier structure, the secondary-side diode has a parasitic junction capacitance (C _j ), and in the step-up transformer structure of 1: n, when the parasitic junction capacitance ( C _j ) of the secondary-side diode is projected to the primary side, n ² C _j will have a large value of For example, if the winding ratio of the transformer is selected as 1: 4 for 4 times the voltage amplification gain, 16 times the parasitic junction capacitance (C _j ) is projected to the primary side, and the zero voltage switching characteristic of the primary side switch is reduced. has the disadvantage of lowering it.

The reduced zero voltage switching characteristic of the primary side switch causes additional switching loss, so it is a constraint to be driven at a low switching frequency. And it also causes a disadvantage of increasing the size of the magnetic material. However, battery-based trams and hydrogen fuel cell-based railway vehicles that require a step-up converter are already severely limited in space due to additional batteries and hydrogen fuel cells compared to existing railway vehicles. There is a problem that further aggravates the space constraint of

1. Republic of Korea Utility Model Registration No. 20-0371173 (Protection switch of automatic voltage regulator, emergency switch and transformer tap change part), 2. Korean Patent Registration No. 10-1416787 (Method of Continuously Switching Between Winding Taps of Tap Transformer), 3. Korean Patent Registration No. 10-140038 (Tap Changer for Transformer).

Therefore, the present invention has been devised to solve the above problems, and the problem to be solved is that the output voltage can be amplified by the secondary capacitor voltage without increasing the winding ratio of the transformer as much as possible. To provide a voltage amplifying device for a tap rectifier and an amplification method using the same.

_{Another object of the present invention is to maintain the junction capacitance (C j} ) of the secondary side diode projected to the primary side, thereby preventing the zero voltage switching characteristic of the primary side switch from being deteriorated. Voltage amplification of a center-tap rectifier To provide an apparatus and an amplification method using the same.

However, the technical problems to be achieved in the present invention are not limited to the technical problems mentioned above, and other technical problems not mentioned are clearly to those of ordinary skill in the art to which the present invention belongs from the description below. can be understood

In order to achieve the above technical task, in _{the center-tap rectifier voltage amplifying device for amplifying the primary-side voltage (V 1} ) to the secondary-side output voltage (Vo), the voltage is accumulated in the capacitor (C _D ) and in series a first transformer tap connected (N _s1 ); A second diode (D _s2) and a second transformer taps being series-connected (N _{s2); a first diode (D s1} ) having one end connected to each of the first transformer tap (N _s1 ) and the second transformer tap (N _s2 ), the other end representing the output voltage (Vo); A capacitor (C _D ), a second diode (D _s2 ), and a common ground connected to the output voltage (Vo); a center-tap rectifier voltage amplifying device is provided.

In addition, the first diode D _s1 forms a forward direction from the first transformer tap N _s1 and the second transformer tap N _s2 to the output voltage Vo.

In addition, the second diode (D _s2 ) forms a forward direction from the common ground to the second transformer tap (N _{s2 ).}

In addition, the number of turns of the primary tap (5): the _{number of turns of the first transformer tap (N s1} ): the number of turns of the second transformer tap (N _s2 ) 1: n: m, the capacitor ( _CD ) has ( A voltage of n+m)V ₁ may be accumulated.

In addition, (2n+m)V _{1 which is the sum of the voltage of the capacitor C D} and the voltage nV ₁ projected to the number of turns of the first transformer tap N _s1 in the dot operation is the output voltage Vo.

As another category to achieve the above technical task, in the amplification method using the voltage amplification device of the above-described center-tap rectifier, the primary voltage (V ₁ ) alternating in the dot direction and the undot direction is the primary side tap (5) is applied (S100), when the primary voltage (V ₁ ) is in the undot direction (S120), the voltage of nV _{1 is projected from the first transformer tap (N s1} ) of the secondary side, the first transformer Step (S122) of projecting a voltage of mV ₁ in the second transformer tap (N _s2 ) connected in parallel with the tap (N _{s1 );} And a step of storing the first transformer tap (N _s1) voltage (nV ₁₎ and the second transformer taps (N _s2) Voltage (mV ₁₎ a (n + m) V ₁ voltage to the capacitor (C _D) of the ( S124); is performed,

When the primary-side voltage (V ₁ ) is in the dot direction (S140), the step of projecting the voltage of nV _{1 in the first transformer tap (N s1) (S142);} And (2n+m)V _{1 which} is the sum of the voltage of the first transformer tap (N _s1 ) (nV ₁ ) and the (n+m)V ₁ accumulated in the capacitor (C _D ) in the undot operation is the output voltage ( Vo) becoming step (S160); including, the number of turns of the _{primary side tap (5): the number of turns of the first transformer tap (N s1} ): the number of turns of the second transformer tap (N _{s2 ) 1: n:} An amplification method using a voltage amplifying device of a center-tap rectifier is provided, characterized in that the ratio is m.

Optionally, one end is connected to the first transformer tap (N _s1 ) and the second transformer tap (N _s2 ), respectively, and the other end is connected to the first diode (D _s1 ). A third transformer tap (N _s3 ) is further included. can do.

In addition, the number of turns of the primary tap (5): the number of turns of the first transformer tap (N _s1 ): the number of turns of the second transformer tap (N _s2 ): the number of turns of the third transformer tap (N _{s3 ) 1: n} : m: k one time, the capacitor (C _D) is frozen in the dot operation (n + m) and the voltage V ₁ to be accumulated, the capacitor first transformer tap in a voltage with the dot operations of (C _D) (N _s1 ) and the number of turns of the third transformer tap (N _s3 ) and the projected voltages nV ₁ and kV ₁ , (2n+m+k)V ₁ is the output voltage Vo.

Optionally, as another category to achieve the above technical problem, in the amplification method using the voltage amplification device of the above-described center-tap rectifier, the primary side voltage (V ₁ ) alternating in the dot direction and the undot direction is When applied to the primary tap (5) (S100), the primary voltage (V ₁ ) is in the undot direction (S120), the voltage of nV _{1 is projected from the first transformer tap (N s1) of the secondary side,} A first transformer tap (N _s1 ) and a second transformer tap (N _s2 ) connected in parallel to a voltage of mV ₁ is projected (S122); And a step of storing the first transformer tap (N _s1) voltage (nV ₁₎ and the second transformer taps (N _s2) Voltage (mV ₁₎ a (n + m) V ₁ voltage to the capacitor (C _D) of the ( S124); is performed,

When the primary voltage (V1) is one dot direction (S140), a first transformer tap the voltage nV ₁ is projected on the (N _s1), a first transformer tap (N _s1) in series with the third transformer taps (N _s3 ) in which _{a voltage of kV 1} is projected (S146); And the voltage of the first transformer tap _{(N s1) (nV 1)} , the third transformer taps (N _s3) Voltage (kV _1), accumulated in the capacitor (C _D) in the unloading dots operation (n + m) V ₁ of _{(2n+m+k)V 1 which} is the sum of the voltages of (2n+m+k)V 1 becomes the output voltage Vo (S160); including, the number of turns of the primary tap (5): the number of turns of the first transformer tap (N _s1 ) Bow: Second transformer tap (N _s2 ) Number of turns: Third transformer tap (N _s3 ) Number of turns 1: n: m: center, characterized in that the ratio of k: amplification using a voltage amplifier of a tap rectifier method can also be achieved.

According to an embodiment of the present invention, it is possible to amplify the output voltage by the secondary-side capacitor voltage without increasing the winding ratio of the transformer as much as possible.

_{In addition, by maintaining the junction capacitance (C j} ) of the secondary side diode projected to the primary side, it is possible to prevent deterioration of the zero voltage switching characteristic of the primary side switch. For this reason, there is a characteristic that can be driven at a high switching frequency.

For this reason, it is possible to realize a high voltage gain without increasing the size of the magnetic material in the field of battery-based trams and hydrogen fuel cell-based railway vehicles that require a step-up converter.

However, the effects obtainable in the present invention are not limited to the above-mentioned effects, and other effects not mentioned will be clearly understood by those of ordinary skill in the art to which the present invention belongs from the following description. will be able

The following drawings attached to this specification illustrate preferred embodiments of the present invention, and serve to further understand the technical spirit of the present invention together with the detailed description of the present invention to be described later, so the present invention is described in such drawings It should not be construed as being limited only to
1 is a circuit diagram of a secondary side of a voltage amplifying device of a conventional center-tap rectifier;
2 is a secondary-side circuit diagram of a voltage amplifying device of a center-tap rectifier according to a first embodiment of the present invention;
3 is a circuit diagram showing when the voltage amplifying device of the center-tap rectifier shown in FIG. 2 is applied in an undot direction;
4 is a circuit diagram showing when a voltage is applied in the dot direction to the voltage amplifying device of the center-tap rectifier shown in FIG. 2;
5 is a secondary-side circuit diagram of a voltage amplifying device of a center-tap rectifier according to a second embodiment of the present invention;
6 is a circuit diagram showing when a voltage is applied in an undot direction to the voltage amplifying device of the center-tap rectifier shown in FIG. 5;
7 is a circuit diagram showing when a voltage is applied in the dot direction to the voltage amplifying device of the center-tap rectifier shown in FIG. 5;
8 is a flowchart showing an operating method of the first embodiment according to the present invention;
9 is a flowchart illustrating an operation method of the second embodiment according to the present invention.

Hereinafter, with reference to the accompanying drawings, embodiments of the present invention will be described in detail so that those of ordinary skill in the art to which the present invention pertains can easily implement them. However, since the description of the present invention is merely an embodiment for structural or functional description, the scope of the present invention should not be construed as being limited by the embodiment described in the text. That is, since the embodiment may have various modifications and may have various forms, it should be understood that the scope of the present invention includes equivalents capable of realizing the technical idea. In addition, since the object or effect presented in the present invention does not mean that a specific embodiment should include all of them or only such effects, it should not be understood that the scope of the present invention is limited thereby.

The meaning of the terms described in the present invention should be understood as follows.

Terms such as “first” and “second” are for distinguishing one component from another, and the scope of rights should not be limited by these terms. For example, a first component may be termed a second component, and similarly, a second component may also be termed a first component. When a component is referred to as being “connected” to another component, it may be directly connected to the other component, but it should be understood that other components may exist in between. On the other hand, when it is mentioned that a certain element is "directly connected" to another element, it should be understood that the other element does not exist in the middle. Meanwhile, other expressions describing the relationship between elements, that is, “between” and “immediately between” or “neighboring to” and “directly adjacent to”, etc., should be interpreted similarly.

The singular expression is to be understood as including the plural expression unless the context clearly dictates otherwise, and terms such as "comprises" or "have" refer to the described feature, number, step, action, component, part or these It is intended to indicate that a combination exists, and it should be understood that it does not preclude the possibility of the existence or addition of one or more other features or numbers, steps, operations, components, parts, or combinations thereof.

All terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs, unless otherwise defined. Terms defined in the dictionary should be interpreted as being consistent with the meaning of the context of the related art, and cannot be interpreted as having an ideal or excessively formal meaning unless explicitly defined in the present invention.

Construction of the first embodiment

Hereinafter, the configuration of the preferred embodiment will be described in detail with reference to the accompanying drawings. 2 is a circuit diagram of a secondary side of a voltage amplifying device of a center-tap rectifier according to a first embodiment of the present invention. As shown in FIG. 2 , a capacitor (C _D ) 112 in which a voltage is accumulated and a first transformer tap (N _s1 ) 110 are connected in series. And, the second diode (D _s2 ) 122 and the second transformer tap (N _s2 ) 120 are connected in series. The second diode (D _s2 ) 122 forms a forward direction from the common ground toward the second transformer tap (N _{s2 ) 120 .}

One end of the first diode (D _s1 ) 150 is respectively connected to the first transformer tap (N _s1 ) 110 and the second transformer tap (N _s2 ) 120 , and the other end is the output voltage (Vo) 140 ) is indicated. At this time, the first diode (D _s1 ) 150 forms a forward direction from the first transformer tap (N _s1 ) 110 and the second transformer tap (N _s2 ) 120 to the output voltage (Vo) 140 . do.

In addition, the capacitor (C _D ) 112 , the second diode ( D _s2 ) 122 and the output voltage Vo ( 140 ) form a common ground. The output voltage Vo 140 has an output capacitor Co 130 and an output resistance Ro.

At this time, the number of turns of the primary side tap (5): the number of turns of the first transformer tap (N _s1 ) 110: the number of _{turns of the second transformer tap (N s2} ) (120) is 1: n: m ratio and , n and m are natural numbers greater than or equal to 1. For example, n can be 1,2,3,4,5 or more, and m can be 1,2,3,4,5 or more.

Operation of the first embodiment

Hereinafter, the operation of the preferred embodiment will be described in detail with reference to the accompanying drawings. 8 is a flowchart illustrating an operation method of the first embodiment according to the present invention. _{First, a primary voltage (V 1} ) alternating in a dot direction and an undot direction is applied to the primary side tab 5 ( S100 ). The undot direction is the reverse direction of the dot direction, and voltages in the dot and undot directions are periodically generated from the primary side.

FIG. 3 is a circuit diagram illustrating when a voltage is applied in an undot direction to the voltage amplifying device of the center-tap rectifier shown in FIG. 2 . As shown in FIG. 3 , when the primary voltage (V ₁ ) is in the undot direction (S120), the voltage of nV _{1 is projected from the first transformer tap (N s1} ) 110 of the secondary side, and the first A voltage of mV ₁ is projected from the transformer tap (N _s1 ) 110 and the second transformer tap (N _{s2 ) 120 connected in parallel (S122).}

Next, the voltage (nV ₁ ) of the first transformer tap (N _s1 ) 110 and the voltage (mV ₁ ) of the second transformer tap (N _s2 ) 120 are (n+m)V ₁ voltage of the capacitor ( It _{is accumulated in C D} ) 112 (S124).

FIG. 4 is a circuit diagram illustrating when a voltage is applied in a dot direction to the voltage amplifying device of the center-tap rectifier shown in FIG. 2 . As shown in FIG. 4 _{, when the primary voltage V 1} is in the dot direction (S140), the voltage of nV _{1 is projected from the first transformer tap (N s1} ) 110 ( S142 ).

As such, by the sum of the voltage accumulation on the capacitor (C _D ) in the undot operation and the voltage (nV _{1 ) projected on the first transformer tap (N s1 ) in the dot operation, nV 1} + mV ₁ + nV ₁ = (2n) +m)V _{1 The} voltage becomes the output voltage Vo (S160). If n = m = 1, the output voltage Vo becomes 3V ₁ .

Construction of the second embodiment

Hereinafter, the configuration of the preferred embodiment will be described in detail with reference to the accompanying drawings. 5 is a secondary-side circuit diagram of a voltage amplifying device of a center-tap rectifier according to a second embodiment of the present invention. As shown in FIG. 5 , a capacitor (C _D ) 212 in which a voltage is accumulated and a first transformer tap (N _s1 ) 210 are connected in series. Then, the second diode (D _s2 ) 222 and the second transformer tap (N _s2 ) 220 are connected in series. The second diode (D _s2 ) 222 forms a forward direction from the common ground toward the second transformer tap (N _{s2 ) 220 .}

One end of the first diode (D _s1 ) 250 is connected to the third transformer tap (N _s3 ) 260 , and the other end represents the output voltage Vo ( 240 ). At this time, the first diode D _s1 250 forms a forward direction from the third transformer tap N _s3 260 to the output voltage Vo 240 .

The third transformer tap (N _s3 ) 260 is respectively connected to the first transformer tap (N _s1 ) 210 and the second transformer tap (N _s2 ) 220 , the other end of which is a first diode (D _s1 ) ( 250) is connected.

In addition, the capacitor (C _D ) 212 , the second diode (D _s2 ) 222 and the output voltage Vo ( 240 ) form a common ground. The output voltage Vo 240 has an output capacitor Co 230 and an output resistance Ro.

At this time, the number of turns of the primary side tap (5): the number of turns of the first transformer tap (N _s1 ) (210): the second transformer tap (N _s2 ) (220): the third transformer tap (N _s3 ) (260) The number of turns in is the ratio of 1: n: m: k, and n, m and k are natural numbers greater than or equal to 1. For example, n can be 1,2,3,4,5 or more, m can be 1,2,3,4,5 or more, and k can be 1,2,3,4 or more. ,5 or more.

Operation of the second embodiment

Hereinafter, the operation of the preferred embodiment will be described in detail with reference to the accompanying drawings. 9 is a flowchart illustrating an operation method of the second embodiment according to the present invention. As shown in FIG. 9 , first, a primary voltage (V ₁ ) alternating in a dot direction and an undot direction is applied to the primary side tab 5 ( S100 ). The undot direction is the reverse direction of the dot direction, and voltages in the dot and undot directions are periodically generated from the primary side.

6 is a circuit diagram illustrating when a voltage is applied in an undot direction to the voltage amplifying device of the center-tap rectifier shown in FIG. 5 . As shown in FIG. 6 , when the primary voltage (V ₁ ) is in the undot direction (S120), the voltage of nV _{1 is projected from the first transformer tap (N s1} ) 210 of the secondary side, and the first A voltage of mV ₁ is projected from the transformer tap (N _s1 ) 210 and the second transformer tap (N _{s2 ) 220 connected in parallel (S122).}

Next, the voltage (nV ₁ ) of the first transformer tap (N _s1 ) 210 and the voltage (mV ₁ ) of the second transformer tap (N _s2 ) 220 are (n+m)V ₁ voltage of the capacitor ( It _{is accumulated in C D} ) 212 (S124).

FIG. 7 is a circuit diagram illustrating when a voltage is applied in a dot direction to the voltage amplifying device of the center-tap rectifier shown in FIG. 5 . 7, when the primary side voltage (V ₁ ) is in the dot direction (S140), the voltage of nV _{1 is projected from the first transformer tap (N s1} ) 210, and the third transformer tap (N) _{At s3} ) 260 , _{a voltage of kV 1} is projected ( S146 ).

The voltage projection Thus the unloading capacitor in dot action (C _D) a first transformer tap on the voltage accumulated and dot operations in (N _s1) the voltage (nV ₁₎ and the third transformer taps (N _s3) projected on (kV ₁ ), nV ₁ + mV ₁ + nV ₁ + kV ₁ = (2n+m+k)V ₁ voltage becomes the output voltage Vo (S160). If n = m = k = 1, the output voltage Vo becomes 4V ₁ .

The detailed description of the preferred embodiments of the present invention disclosed as described above is provided to enable any person skilled in the art to make and practice the present invention. Although the above has been described with reference to preferred embodiments of the present invention, it will be understood by those skilled in the art that various modifications and changes can be made to the present invention without departing from the scope of the present invention. For example, those skilled in the art can use each configuration described in the above-described embodiments in a way in combination with each other. Accordingly, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

The present invention may be embodied in other specific forms without departing from the spirit and essential characteristics of the present invention. Accordingly, the above detailed description should not be construed as restrictive in all respects but as exemplary. The scope of the present invention should be determined by a reasonable interpretation of the appended claims, and all modifications within the equivalent scope of the present invention are included in the scope of the present invention. The present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein. In addition, claims that are not explicitly cited in the claims may be combined to form an embodiment, or may be included as new claims by amendment after filing.

5: primary side tap,
10: first transformer tap (N _s1 ),
12: a first diode (D _s1 ),
20: second transformer tap (N _s2 ),
22: a second diode (D _s2 ),
30: output capacitor (Co),
40: output voltage (Vo),
110: first transformer tap (N _s1 ),
112: capacitor (C _D ),
120: second transformer tap (N _s2 ),
122: a second diode (D _s2 ),
130: output capacitor (Co),
140: output voltage (Vo),
150: a first diode (D _s1 ),
210: first transformer tap (N _s1 ),
212: capacitor (C _D ),
220: second transformer tap (N _s2 ),
222: a second diode (D _s2 ),
230: output capacitor (Co),
240: output voltage (Vo),
250: a first diode (D _s1 ),
260: third transformer tap (N _s3 ),
V ₁ : Primary voltage.

Claims (10)

In the center-tap rectifier voltage amplifying device for amplifying the primary side voltage (V _{1 ) to the secondary side output voltage (Vo),}
a first transformer tap (N _s1 ) connected in series with a capacitor (C _{D ) for accumulating a voltage;}
A second diode (D _s2) and a second transformer taps being series-connected (N _{s2);
a first diode (D s1} ) having one end connected to the first transformer tap (N _s1 ) and the second transformer tap (N _s2 ), the other end representing the output voltage (Vo); and
a common ground connected to the capacitor (C _D ), the second diode (D _s2 ), and the output voltage (Vo);
The first diode (D _s1 ) is a center-tap rectifier, characterized in that it forms a forward direction from the first transformer tap (N _s1 ) and the second transformer tap (N _{s2 ) to the output voltage (Vo)} amplifier. delete The method of claim 1,
The second diode (D _s2 ) is a center-tap rectifier voltage amplification device, characterized in that it forms a forward direction from the common ground to the second transformer tap (N _{s2 ).} The method of claim 1,
The number of turns of the primary tap (5): The _{number of turns of the first transformer tap (N s1} ): The number of turns of the second transformer tap (N _s2 ) 1: n: When m is, the capacitor ( _CD ) has A voltage amplifying device for a center-tap rectifier, characterized in that a voltage of (n+m)V1 is accumulated. 5. The method of claim 4,
A voltage of the capacitor (C _D ), (2n+m)V1 is the output voltage (Vo), characterized in that the center-tap rectifier voltage amplifier. [Claim 6] In the amplification method using the voltage amplification device of the center-tap rectifier according to any one of claims 1, 3 to 5,
_{The primary side voltage (V 1} ) alternating in the dot direction and the undot direction is applied to the primary side tab 5 (S100),
When the primary side voltage (V ₁ ) is in the undot direction (S120),
The voltage nV ₁ is projected at a first transformer tap (N _s1) of the secondary winding, said first transformer tap (N _s1) and the parallel connected second transformer tap phase voltage is the projection of mV ₁ from (N _s2) ( S122); and
The voltage (nV ₁ ) of the first transformer tap (N _s1 ) and the voltage (mV ₁ ) of the second transformer tap (N _s2 ) are accumulated in the capacitor (C _D ) as a (n+m)V _{1 voltage} (S124); is performed,
When the primary voltage (V ₁ ) is in the dot direction (S140),
Projecting a voltage of nV ₁ in the first transformer tap (N _s1 ) (S142); and
(2n+m)V which is the sum of the accumulated voltage (n+m)V ₁ of the capacitor C _{D in} the undot direction and the voltage nV _{1 projected to the first transformer tap N s1 in the dot direction 1} becomes the output voltage Vo (S160); is performed,
The number of turns of the primary tap (5): the _{number of turns of the first transformer tap (N s1} ): the number of turns of the second transformer tap (N _s2 ) 1: n: center, characterized in that the ratio of m- Amplification method using voltage amplification device of tap rectifier. The method of claim 1,
One end is respectively connected to the first transformer tap (N _s1 ) and the second transformer tap (N _s2 ), and the other end is connected to the first diode (D _s1 ). A third transformer tap (N _s3 ) is further included. Center-tap rectifier voltage amplification device, characterized in that. 8. The method of claim 7,
Number of windings of primary side tap (5): Number of windings of the first transformer tap (N _s1 ): Number of windings of the second transformer tap (N _s2 ): Number of windings of the third transformer tap (N _{s3) 1:} When n: m: k, the capacitor (C _D ) is a voltage amplifying device of a center-tap rectifier, characterized in that the voltage of (n+m)V _{1 is accumulated.} 9. The method of claim 8,
The accumulated voltage (n+m)V ₁ of the capacitor C _D in the undot direction and the voltage (n n) projected to the first transformer tap N _s1 and the third transformer tap N _{s3 in the dot direction} +k)V ₁ is added to (2n+m+k)V ₁ is the output voltage (Vo), characterized in that the center-tap rectifier voltage amplifier. The amplification method using the voltage amplification device of the center-tap rectifier according to any one of claims 7 to 9,
_{A primary side voltage (V 1} ) alternating in the dot direction and the undot direction is applied to the primary side tab 5 (S100),
When the primary voltage (V ₁ ) is in the undot direction (S120),
The voltage nV ₁ is projected at a first transformer tap (N _s1) of the secondary winding, said first transformer tap (N _s1) and the parallel connected second transformer tap phase voltage is the projection of mV ₁ from (N _s2) ( S122); and
Step accumulated in the first transformer tap (N _s1) voltage (nV ₁₎ and the second transformer taps (N _s2) Voltage (mV ₁₎ a (n + m) V ₁ voltage to the capacitor (C _D) of the (S124); is performed,
When the primary voltage (V ₁ ) is in the dot direction (S140),
Said first transformer tap (N _s1) the voltage nV ₁ is projected from the first transformer tap (N _s1) and phase voltage is the projection of kV ₁ In the third transformer tap series-connected (N _s3) (S146 ); and
The accumulated voltage (n+m)V ₁ of the capacitor C _{D in} the undot direction and the voltage projected to the first transformer tap N _s1 and the third transformer tap N _{s3 in the dot direction} (n + k) V ₁ is added to (2n + m + k) V ₁ is the output voltage (Vo) step (S160); including;
Number of turns of the primary side tap (5) _{: Number of turns of the first transformer tap (N s1} ): Number of turns of the second transformer tap (N _s2 ): The number of turns of the third transformer tap (N _{s3 ) is 1} : An amplification method using a voltage amplifying device of a center-tap rectifier, characterized in that the ratio is : n : m : k.

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