JP2018074718A - Power generator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a power generator which can increase an output voltage without enlarging its size.SOLUTION: A power generator 1 has: a stator 20; a rotor 40; a plurality of coils 30, 30, ... fixed to either the rotor 40 or the stator 20; a magnet member 50 fixed to the other of the rotor 40 and the stator 20; a first wiring portion 60 connecting the plurality of coils 30, 30, ... in series selected from the plurality of coils 30, 30, ... so that an effective value may be a higher effective value of a voltage output from one of the plurality of coils 30, 30, ..., and a first output portion 70 outputting a voltage obtained from the plurality of coils 30, 30, ... connected by the first wiring portion 60.SELECTED DRAWING: Figure 4

Description

  The present invention relates to a generator.

  Conventionally, a small generator mounted on a vehicle is known. In these generators, a magnetic member (magnetic flux density) is changed by rotating a magnet member attached to the other of a coil fixed to one of a stator and a rotor (armature) relative to the other. ing. The coil is excited by the changed magnetic field (magnetic flux density) to output electric power.

  By the way, dynamo is known as a kind of such a generator. The dynamo converts an AC voltage generated by relatively rotating a coil or a magnet member into a DC voltage using a commutator. As such a dynamo, for example, a bicycle light generator has been proposed (see, for example, Patent Document 1).

JP 2008-110443 A

  In the proposed bicycle generator, the output voltage is adjusted so that the light emitting diode emits light with an appropriate luminous intensity by switching coils having different winding numbers according to the speed of the bicycle. As described above, the output voltage can be changed by changing the number of turns. However, in order to obtain a larger output voltage, it is necessary to increase the number of turns. For this reason, there was a need to increase the size of the generator.

  An object of this invention is to provide the generator which can raise an output voltage, without enlarging.

  The present invention relates to a stator, a rotor, a plurality of coils fixed to one of the rotor and the stator, a magnet member fixed to the other of the rotor and the stator, A first wiring portion for connecting a plurality of the coils selected from the plurality of coils in series so that an effective value greater than an effective value of the voltage output from one of the coils is obtained; and the first wiring And a first output unit that outputs a voltage obtained from the plurality of coils connected by the unit.

  In addition, the generator according to the present invention further includes a first rectifier that rectifies the output of the coil connected in series by the first wiring portion when the first output portion is connected to the input side. Is preferred.

  The generator according to the present invention is a plurality of generators selected to have an effective value larger than an effective value of a voltage output from one of the coils not connected by the first wiring portion. It is preferable to further include a second wiring portion that connects the coils in series and a second output portion that outputs a voltage obtained from the plurality of coils connected by the second wiring portion.

  The generator according to the present invention may further include a second rectifier that rectifies the output of the coil connected in series by the second wiring portion when the second output portion is connected to the input side. preferable.

  The output side of the first rectifier may be connected in series with the output side of the second rectifier.

  ADVANTAGE OF THE INVENTION According to this invention, the generator which can raise an output voltage, without enlarging can be provided.

It is a top view which shows the generator in the state which removed one side of the board member among the generators which concern on one Embodiment of this invention. It is a side view which shows the generator of this embodiment. It is a disassembled perspective view which shows the generator of this embodiment. It is a circuit diagram which shows the generator of this embodiment. It is a schematic diagram which shows the voltage output from the 1st output part of the generator of this embodiment. It is a schematic diagram which shows the voltage rectified by the 1st rectifier of the generator of this embodiment. It is a schematic diagram which shows the voltage obtained by connecting the 1st rectifier and 2nd rectifier of the generator of this embodiment in series. It is a top view of the generator concerning this embodiment, and is a figure for explaining the 2nd example. It is a side view which shows the generator of the modification of this embodiment.

  Hereinafter, an embodiment of a generator according to the present invention will be described with reference to FIGS.

  The power generator 1 according to the present embodiment is a small power generator 1 mounted on, for example, a bicycle or a passenger car, and generates power using engine rotation, wheel rotation, or other rotational energy. The generator 1 can output the generated power to the outside.

  As shown in FIGS. 1 to 4, the generator 1 according to this embodiment includes a pair of plate members 10, 10, a stator 20, a plurality of coils 30, 30,. The magnet member 50, the 1st wiring part 60, the 1st output part 70, the 1st rectifier 80, the 2nd wiring part 90, the 2nd output part 100, and the 2nd rectifier 110 are provided.

  As for a pair of board members 10 and 10, each board surface 10A is arranged substantially in parallel. Further, each of the pair of plate members 10 and 10 is formed with a hole 11 having a circular cross section having an opening on the opposing plate surface 10A. The hole 11 is formed so that the axial direction overlaps a straight line that is substantially perpendicular to the opposing plate surface 10 </ b> A in the pair of plate members 10 and 10 that are opposed to each other. In the present embodiment, the hole 11 is formed as a through hole that penetrates each of the pair of plate members 10 and 10 in the thickness direction.

  The stator 20 is formed in a substantially annular shape, and is formed with a width that is substantially the same as the distance between the opposing plate surfaces 10 </ b> A of the pair of plate members 10, 10. In the present embodiment, the stator 20 is formed in a regular dodecagonal shape when viewed from the front.

  Each of the plurality of coils 30, 30,... Has its own axial direction oriented in the radial direction of the stator 20, and its one axial end is fixed to the outer surface of the stator 20. In the present embodiment, each of the plurality of coils 30, 30,... Is individually fixed to the outer surface forming the side of the stator 20 formed in a front view regular dodecagon. Accordingly, in the present embodiment, twelve coils 30, 30,. In the present embodiment, the plurality of coils 30, 30,... Are fixed to the stator 20, but may be fixed to the rotor 40.

  According to the pair of plate members 10, 10, the stator 20, and the plurality of coils 30, 30,..., Each of the pair of plate members 10, 10 is a plate surface 10 </ b> A that is disposed to face each other. By bringing the sides closer to each other and sandwiching the width direction of the stator 20, the distance between the opposing plate surfaces 10 </ b> A is determined. Each of the pair of plate members 10 and 10 is relatively fixed by fixing both end surfaces in the width direction of the stator 20 to the opposing plate surfaces 10A. Each of the plurality of coils 30, 30,... Is disposed between the pair of plate members 10, 10.

The rotor 40 includes a shaft portion 41 and a rotor main body 42.
The shaft portion 41 is formed in a rod shape having a circular cross section with a diameter that can be inserted into the hole portion 11 formed in the pair of plate members 10, 10. Further, the shaft portion 41 is formed with a length that can be inserted into each hole portion 11 of the pair of plate members 10 and 10. In the present embodiment, the shaft portion 41 can rotate around the axis by being connected to a bicycle axle, a passenger car engine shaft, or the like.

  The rotor body 42 is formed in a substantially columnar shape having a through hole 43 having the same diameter as the shaft portion 41 at the shaft position, and is fixed to a midway portion of the shaft portion 41 inserted through the through hole 43. Therefore, the rotor main body 42 is fixed to the shaft portion 41 with both end portions of the shaft portion 41 projecting from both side surfaces 42A (surfaces along the radial direction of the shaft portion 41). Further, the rotor main body 42 has a side surface 42A formed as a flat surface. Such a rotor body 42 is formed with an outer diameter smaller than the diameter (inner diameter) on the inner surface side of the stator 20. The rotor body 42 is formed with a width (height) smaller than the width of the stator 20. The rotor body 42 is fixed to the shaft portion 41 so as to be substantially parallel to the plate surface 10 </ b> A of the plate member 10. In the present embodiment, the rotor body 42 is formed in a regular decagonal shape when viewed from the front.

  The magnet member 50 is a plurality of permanent magnets, and is attached to the outer surface constituting each side of the rotor body 42. Therefore, in this embodiment, ten magnet members 50 are provided. In the present embodiment, the magnet member 50 is fixed to the rotor 40, but may be fixed to the stator 20.

  According to the rotor 40 and the magnet member 50 as described above, the shaft portion 41 contacts the inner surface of the hole portion 11 by inserting both end portions into the hole portions 11 of the pair of plate members 10 and 10. To do. The rotor main body 42 can also rotate around the axis by rotating the shaft portion 41 around the axis. Further, the rotor main body 42 has an outer diameter smaller than the inner diameter (inner diameter) of the inner surface of the stator 20, and has a smaller width (height) than the width of the stator 20. And an area surrounded by the pair of plate members 10 and 10. When the rotor main body 42 rotates, the magnet member 50 changes the magnetic field (magnetic flux density) of each of the plurality of coils 30, 30,. Is output.

  As shown in FIG. 4, the 1st wiring part 60 connects the coil 30 in series. Specifically, the first wiring unit 60 is selected from the plurality of coils 30, 30,... So that the effective value is larger than the effective value of the voltage output from one coil 30. A plurality of coils 30, 30, ... are connected in series. Therefore, at least one first wiring unit 60 is provided in accordance with the number of selected coils 30. For example, in this embodiment, six coils are selected as two groups for twelve coils. Each group is selected such that the effective value of the combined output voltages of the six coils is larger than the effective value of the output voltage of one coil. The first wiring unit 60 connects the six selected coils in series.

  The first output unit 70 is configured by a pair of wires, and is connected so as to output a voltage synthesized from the plurality of coils 30, 30,... Connected in series by the first wiring unit 60. That is, the 1st output part 70 is the both ends which are not connected to the 1st wiring part 60 among the both ends of the coil | winding of several coils 30, 30, ... connected in series by the 1st wiring part 60. Connected to each.

  The first rectifier 80 is configured using a diode, a thyristor, or the like. The first output unit 70 is connected to the input side of the first rectifier 80. As a result, the first rectifier 80 receives the combined output of the plurality of coils 30, 30,... Connected in series by the first wiring unit 60 on the input side. The first rectifier 80 rectifies the combined output of the plurality of coils 30, 30,... Connected by the first wiring unit 60 and outputs the rectified output to the output side.

  According to the first wiring unit 60, the first output unit 70, and the first rectifier 80 as described above, the magnet member 50 rotates along with the rotation of the rotor body 42, so that the first wiring unit 60 performs the rotation. A change in magnetic field (magnetic flux density) occurs in each of the plurality of coils 30, 30,... Connected in series. Thereby, an induced electromotive force is generated in the plurality of coils 30, 30,. When the first wiring unit 60 synthesizes the induced electromotive force generated from the coil 30, the first output unit 70 outputs a voltage obtained by synthesizing the induced electromotive forces of the plurality of coils 30, 30,. Since the first rectifier 80 rectifies the voltage output by the first output unit 70, the negative voltage can be inverted to the positive side. That is, the first rectifier 80 can output a DC voltage.

  The second wiring unit 90 is a plurality of coils 30 selected to have an effective value larger than the effective value of the voltage output from one coil 30 among the coils 30 that are not connected by the first wiring unit 60. , 30,... Are connected in series. Therefore, at least one second wiring unit 90 is provided in accordance with the number of selected coils 30.

  The second output unit 100 includes a pair of wires, and is connected so as to output a voltage synthesized from the plurality of coils 30, 30,... Connected in series by the second wire unit 90. That is, the 2nd output part 100 is the both ends which are not connected to the 2nd wiring part 90 among the both ends of the coil | winding of several coils 30, 30, ... connected in series by the 2nd wiring part 90. Connected to each.

  The second rectifier 110 is configured using a diode, a thyristor, or the like. The second output unit 100 is connected to the input side of the second rectifier 110. As a result, in the second rectifier 110, a combined output of the plurality of coils 30, 30,... Connected in series by the second wiring unit 90 is input to the input side. The second rectifier 110 rectifies the combined output of the plurality of coils 30, 30,... Connected by the second wiring unit 90 and outputs it to the output side. The output side of the second rectifier 110 is connected in series with the output side of the first rectifier 80.

  According to the second wiring unit 90, the second output unit 100, and the second rectifier 110 as described above, the magnet member 50 rotates with the rotation of the rotor body 42. A change in magnetic field (magnetic flux density) occurs in each of the plurality of coils 30, 30,... Connected in series. Thereby, an induced electromotive force is generated in the plurality of coils 30, 30,. When the second wiring unit 90 synthesizes the induced electromotive force generated from the coil 30, the second output unit 100 outputs a voltage obtained by synthesizing the induced electromotive forces of the plurality of coils 30, 30,. Since the second rectifier 110 rectifies the voltage output by the second output unit 100, the negative voltage can be inverted to the positive side. That is, the second rectifier 110 can output a DC voltage.

  Further, according to the first rectifier 80 and the second rectifier 110 as described above, the output side of the first rectifier 80 is connected in series with the output side of the second rectifier 110. As a result, the outputs of the plurality of coils 30, 30,... Rectified by the first rectifier 80 and the outputs of the plurality of coils 30, 30,. . Therefore, a voltage higher than the voltage output by either one of the first rectifier 80 and the second rectifier 110 is output.

The generator 1 as described above is used as follows.
First, the shaft portion 41 rotates around the shaft center by rotating the axle of the bicycle, the motor of the passenger car, or the like. Thereby, the rotor main body 42 rotates together with the shaft portion 41. Further, the magnet member 50 rotates together with the rotor body 42. When the magnet member 50 rotates, a change in magnetic field (magnetic flux density) occurs in each of the plurality of coils 30, 30,... Attached to the stator 20.

  Each of the plurality of coils 30, 30,... Generates an induced electromotive force due to a change in magnetic field (magnetic flux density). The 1st wiring part 60 synthesize | combines the induced electromotive force which generate | occur | produced in the coil 30 which self connects among several coils 30, 30, .... The first wiring unit 60 outputs the combined induced electromotive force to the first output unit 70. The first output unit 70 inputs the combined induced electromotive force to the first rectifier 80. The first rectifier 80 rectifies the input induced electromotive force.

  The second wiring unit 90 synthesizes the induced electromotive force generated in the coil 30 to which the second wiring unit 90 is connected. The second wiring unit 90 outputs the combined induced electromotive force to the second output unit 100. The second output unit 100 inputs the combined induced electromotive force to the second rectifier 110. The second rectifier 110 rectifies the input induced electromotive force. The first rectifier 80 and the second rectifier 110 synthesize and output the induced electromotive force rectified by each.

(First embodiment)
Hereinafter, the 1st Example of the generator 1 which concerns on this embodiment is demonstrated.
As shown in FIG. 4, the first wiring unit 60 according to the present embodiment alternately connects three forward winding coils 30, 30, 30 and three reverse winding coils 30, 30, 30 one by one. Configured. Further, the second wiring unit 90 according to the present embodiment is configured by alternately connecting three forward winding coils 30, 30, 30 and three reverse winding coils 30, 30, 30 one by one. .

  And the 1st output part 70 is connected as an output of a plurality of coils 30 and 30 connected by the 1st wiring part 60. As shown in FIG. Moreover, the 2nd output part 100 is connected as an output of the some coil 30,30, ... connected by the 2nd wiring part 90. FIG. Thereby, the voltage output from each of the first output unit 70 and the second output unit 100 with respect to the voltage output from each coil 30 is larger than the voltage from each coil 30 as shown in FIG. The waveform is shown.

  The first rectifier 80 rectifies the voltage output from the first output unit 70. The second rectifier 110 rectifies the voltage output from the second output unit 100. Thereby, the voltage output from each of the first rectifier 80 and the second rectifier 110 has a waveform as shown in FIG. 6 in which a negative voltage is inverted with respect to the time axis to become a positive voltage.

  Since the output of the first rectifier 80 and the output of the second rectifier 110 are connected in series, the output of the first rectifier 80 and the output of the second rectifier 110 are combined. As a result, the combined voltage output from the first rectifier 80 and the second rectifier 110 is twice the voltage output from the first rectifier 80 and the second rectifier 110, as shown in FIG. Voltage is output.

(Second embodiment)
Next, a second example of the generator 1 according to this embodiment will be described.
As shown in FIG. 8, twelve coils 30 are arranged at equal intervals along the circumferential direction of the shaft portion 41. Then, twelve coils 30 were changed to coils 301 to 312 in the clockwise direction.

With the coil 301 as a reference, when the amplitude of the sine wave is A, the angular velocity is ω, and the time is t, each sine wave is expressed as follows.
Coil 301: y = A sin (ωt)
Coil 302: y = A sin (ωt + 30 °)
Coil 303: y = A sin (ωt + 60 °)
Coil 304: y = A sin (ωt + 90 °)
Coil 305: y = A sin (ωt + 120 °)
Coil 306: y = A sin (ωt + 150 °)
Coil 307: y = A sin (ωt + 180 °)
Coil 308: y = A sin (ωt + 210 °)
Coil 309: y = A sin (ωt + 240 °)
Coil 310: y = A sin (ωt + 270 °)
Coil 311: y = A sin (ωt + 300 °)
Coil 312: y = A sin (ωt + 330 °)

ここで、ωt＝αとして、加法定理より、

以上のように、１つのコイル３０から取り出す電圧の実効値よりも出力の総和を大きくすることができる。 The sum of the outputs of the coils 301 to 306 (six coils) is shown as follows.

Here, assuming that ωt = α, from the addition theorem,

As described above, the total output can be made larger than the effective value of the voltage extracted from one coil 30.

ここで、ωt＝αとして、加法定理より、

以上のように、１つのコイル３０から取り出す電圧の実効値よりも出力の総和を大きくすることができる。 The sum total of the outputs of the coils 301 to 303 (three) is shown as follows.

Here, assuming that ωt = α, from the addition theorem,

As described above, the total output can be made larger than the effective value of the voltage extracted from one coil 30.

以上のように、１つのコイル３０から取り出す電圧の実効値よりも出力の総和を大きくすることができる。 The sum total of the outputs of the coils 301 to 304 (four) is (b) + the output of the coil 304 and can be expressed by the following equation.

As described above, the total output can be made larger than the effective value of the voltage extracted from one coil 30.

以上のように、１つのコイル３０から取り出す電圧の実行値よりも出力の総和を大きくすることができる。 The sum total of the outputs of the coils 301 to 305 (5) is (c) + the output of the coil 305 and can be expressed by the following equation.

As described above, the total output can be made larger than the effective value of the voltage extracted from one coil 30.

以上のように、１つのコイル３０から取り出す電圧の実行値よりも出力の総和を大きくすることができる。 The sum total of the outputs of the coils 301 to 307 (seven) is (a) + the output of the coil 307 and can be expressed by the following equation.

As described above, the total output can be made larger than the effective value of the voltage extracted from one coil 30.

以上のように、１つのコイル３０から取り出す電圧の実行値よりも出力の総和を大きくすることができる。 The sum total of the outputs of the coils 301 to 308 (eight) is (d) + the output of the coil 308 and can be expressed by the following equation.

As described above, the total output can be made larger than the effective value of the voltage extracted from one coil 30.

以上のように、１つのコイル３０から取り出す電圧の実行値よりも出力の総和を大きくすることができる。 The sum total of the outputs of the coils 301 to 309 (9 coils) is the output of (e) + coil 309 and can be expressed by the following equation.

As described above, the total output can be made larger than the effective value of the voltage extracted from one coil 30.

以上のように、１つのコイル３０から取り出す電圧の実行値よりも出力の総和を大きくすることができる。 The sum total of the outputs of the coils 301 to 310 (10 pieces) is (f) + the output of the coil 310 and can be expressed by the following equation.

As described above, the total output can be made larger than the effective value of the voltage extracted from one coil 30.

以上のように、１つのコイル３０から取り出す電圧の実行値よりも出力の総和を大きくすることができる。 The sum total of the outputs of the coils 301 to 311 (11 pieces) is (g) + the output of the coil 311 and can be expressed by the following equation.

As described above, the total output can be made larger than the effective value of the voltage extracted from one coil 30.

以上のように、１つのコイル３０から取り出す電圧の実行値よりも出力の総和が小さくなることがわかった。 Next, a comparative example for the second embodiment is shown.
The sum total of the outputs of the coils 301 to 312 (12 pieces) is (h) + the output of the coil 312 and can be expressed by the following equation.

As described above, it has been found that the total output is smaller than the effective value of the voltage extracted from one coil 30.

The generator 1 according to the embodiment described above has the following effects.
(1) The plurality of coils 30, 30,... Are fixed to one of the rotor 40 and the stator 20, and the magnet member 50 is fixed to the other. The plurality of coils 30, 30,... Selected from the entirety of the plurality of coils 30, 30,... So that the effective value is larger than the effective value of the voltage output from one coil 30. Were connected in series by the first wiring part 60. Moreover, the 1st output part 70 which outputs the voltage obtained from the some coil 30,30, ... connected by the 1st wiring part 60 was provided. Thereby, the effective value of the voltage which can be taken out can be enlarged compared with the case where it outputs from one coil 30, 30, ..., without increasing the generator 1 or enlarging.

(2) The first rectifier 80 that rectifies the output of the coil 30 connected in series by the first wiring unit 60 is provided by connecting the first wiring unit 60 to the input side. Thereby, the alternating voltage output via the 1st wiring part 60 can be converted into a direct voltage.

(3) Among the coils 30 not connected by the first wiring unit 60, a plurality of coils 30, 30,... Selected so as to have an effective value larger than the effective value of the voltage output from one coil 30. -The 2nd wiring part 90 which connects in series is provided. Moreover, the 2nd output part 100 which outputs the voltage obtained from the some coil 30,30, ... connected by the 2nd wiring part 90 was provided. Thereby, a voltage of a different system from the voltage output from the coil 30 wired by the first wiring unit 60 can be output. Therefore, by outputting a voltage having an effective value different from the effective value of the voltage output via the first wiring part 60 via the second wiring part 90, the target voltage is obtained without using a transformer. A power supply can be obtained. Conversely, by outputting a voltage having the same effective value as the effective value of the voltage output via the first wiring part 60 via the second wiring part 90, it is possible to easily output power supplies having the same voltage with different phases. be able to.

(4) The second rectifier 110 that rectifies the output of the coil 30 connected in series by the second wiring unit 90 is provided by connecting the second wiring unit 90 to the input side. Thereby, the alternating voltage output via the 2nd wiring part 90 can be converted into a direct voltage.
(5) The output side of the first rectifier 80 is connected in series with the output side of the second rectifier 110. Thereby, the effective value of the voltage output combining the voltage rectified by the first rectifier 80 and the voltage rectified by the second rectifier 110 can be increased. Therefore, the effective value of the voltage that can be taken out can be made larger than when the voltage is output from one coil 30 without increasing or increasing the size of the generator 1.

The preferred embodiment of the generator of the present invention has been described above. However, the present invention is not limited to the above-described embodiment, and can be modified as appropriate.
For example, in the said Example, each of the 1st wiring part 60 and the 2nd wiring part 90 demonstrated the example which connects the forward winding coil 30 and the reverse winding coil 30 alternately in series. Not only this but each of the 1st wiring part 60 and the 2nd wiring part 90 may be made to connect suitably the coil 30 of forward windings, the coils 30 of reverse winding, and the coils 30 from which winding numbers differ. . In short, each of the first wiring part 60 and the second wiring part 90 may be connected to the coils 30 that can obtain a larger output than the individual coils 30 by connecting the coils 30 in series. Accordingly, the number of coils 30 and the number of magnet members 50 can be determined as appropriate.

  Moreover, as shown in FIG. 9, it is also possible to arrange | position the several generator 1 to an axial direction, and it is also possible to make the axial part 41 common. Thereby, various outputs can be obtained from the plurality of generators 1.

  Moreover, in the said embodiment, each of the 1st wiring part 60 and the 2nd wiring part 90 connected two groups of coils 30 selectively selected from several coil 30, 30, ... in series. . Not limited to this, three or more groups may be selectively selected, and a wiring unit, an output unit, and a rectifier may be provided accordingly. Of course, the outputs of a plurality of rectifiers may be connected in series.

DESCRIPTION OF SYMBOLS 1 Generator 20 Stator 30 Coil 40 Rotor 50 Magnet member 60 1st wiring part 70 1st output part 80 1st rectifier 90 2nd wiring part 100 2nd output part 110 2nd rectifier

Claims (5)

A stator,
A rotor,
A plurality of coils fixed to any one of the rotor and the stator;
A magnet member fixed to the other of the rotor and the stator;
A first wiring portion for connecting a plurality of the coils selected from the plurality of coils in series so as to have an effective value larger than an effective value of a voltage output from one of the coils;
A first output unit that outputs a voltage obtained from the plurality of coils connected by the first wiring unit;
With a generator.   The generator according to claim 1, further comprising a first rectifier that rectifies an output of the coil connected in series by the first wiring unit by connecting the first output unit to an input side. A second one in which a plurality of the coils selected so as to have an effective value larger than the effective value of the voltage output from one of the coils not connected by the first wiring unit is connected in series; A wiring section;
A second output unit that outputs voltages obtained from the plurality of coils connected by the second wiring unit;
The generator according to claim 2, further comprising:   4. The generator according to claim 3, further comprising a second rectifier that rectifies the output of the coil connected in series by the second wiring portion when the second output portion is connected to the input side. 5.   The generator according to claim 4, wherein the output side of the first rectifier is connected in series with the output side of the second rectifier.

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