Low-loss control circuit applied to transformer

Abstract

The utility model belongs to the technical field of transformer loss control, and particularly relates to a low-loss control circuit applied to a transformer. According to the scheme of the utility model, the circuit comprises a first control circuit and a second control circuit which are used for adjusting the current of the transformer; the first driving control circuit is electrically connected with the first control circuit and is used for driving and controlling the first control circuit; the second driving control circuit is electrically connected with the second control circuit and is used for driving and controlling the second control circuit; the third control circuit is used for filtering the output voltage of the transformer; the loss of the transformer caused by current can be reduced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to transformer loss control technical field, specifically related to a low loss control circuit for transformer. BACKGROUND

[0002] At present, when the transformer ensures the same power, the volume is reduced, the density of the corresponding coil will increase, and the heat dissipation effect will decrease accordingly with the increase of the density, so the stability of the power will be affected.

[0003] That is, in the application of large current, the current of the traditional transformer is concentrated on a single PCB, causing large voltage drop and loss; in addition, since the traditional transformer adopts a centralized inductance structure, it also causes the problem of large loss.

[0004] Therefore, in view of the technical problems and defects of the traditional transformer in the application of large current, the current is concentrated on a single PCB, causing large voltage drop and loss, it is urgent to design and develop a low loss control circuit for transformer. UTILITY MODEL CONTENTS

[0005] In order to overcome the above-mentioned problems and difficulties of the prior art, the purpose of the utility model is to provide a low loss control circuit for transformer; to reduce the loss caused by current of transformer.

[0006] The utility model discloses a purpose is realized in this way: the circuit includes the first control circuit and the second control circuit for adjusting transformer current;And with the first control circuit electric connection and be used for driving control the first control circuit of first drive control circuit;And the second control circuit electric connection and be used for driving control the second control circuit of second drive control circuit;

[0007] The circuit further includes a third control circuit for filtering the output voltage of the transformer.

[0008] Further, the sixth 601 diode is arranged in the first control circuit;

[0009] One end of the sixth 601 diode is connected with the drain of the sixth 602 field effect tube, the drain of the sixth 603 field effect tube, the drain of the sixth 604 field effect tube and the input end of the transformer respectively;

[0010] The other end of the sixth 601 diode is connected with the source of the sixth 602 field effect tube, the source of the sixth 603 field effect tube, the source of the sixth 604 field effect tube, one end of the sixth 605 resistance, the first drive control circuit, the second control circuit, the third control circuit and the second drive control circuit respectively.

[0011] The other end of the sixth 305 resistor is connected with the one end of the sixth 303 resistor, the one end of the sixth 302 resistor and the one end of the sixth 308 resistor respectively;

[0012] The other end of the sixth 303 resistor is connected with the gate of the sixth 302 field effect tube; the other end of the sixth 302 resistor is connected with the gate of the sixth 303 field effect tube; the other end of the sixth 308 resistor is connected with the gate of the sixth 304 field effect tube.

[0013] Further, the model of the sixth 302 field effect tube, the sixth 303 field effect tube and the sixth 304 field effect tube is ISC015N04NM5; the voltage selection of the sixth 302 field effect tube, the sixth 303 field effect tube and the sixth 304 field effect tube is 40V rated voltage resistance.

[0014] Further, the first driving control circuit is provided with a sixth 300 driver;

[0015] The first pin of the sixth 300 driver is connected with the one end of the sixth 221 capacitor and the second driving control circuit respectively;

[0016] The third pin of the sixth 300 driver is connected with the one end of the sixth 223 capacitor and the one end of the sixth 306 resistor respectively;

[0017] The fourth pin of the sixth 300 driver is connected with the other end of the sixth 221 capacitor, the other end of the sixth 223 capacitor, the first control circuit and the second pin of the sixth 300 driver respectively; the fifth pin of the sixth 300 driver is connected with the first control circuit.

[0018] Further, the sixth 300 driver is integrated on the corresponding PCB board; the model of the sixth 300 driver is UCC27517DBVR. Further, the second control circuit is provided with a sixth 300 bidirectional trigger diode;

[0019] One end of the sixth 300 bidirectional trigger diode is connected with the drain of the sixth 300 field effect tube, the drain of the sixth 301 field effect tube, the drain of the sixth 305 field effect tube and the input end of the transformer respectively;

[0020] The other end of the sixth 300 bidirectional trigger diode is connected with the source of the sixth 300 field effect tube, the source of the sixth 301 field effect tube, the source of the sixth 305 field effect tube, the one end of the sixth 304 resistor, the first driving control circuit, the first control circuit, the third control circuit and the second driving control circuit respectively;

[0021] The other end of the sixth 604 resistor is connected with the one end of the sixth 601 resistor, the one end of the sixth 600 resistor and the one end of the sixth 609 resistor respectively.

[0022] The other end of the sixth 601 resistor is connected with the gate of the sixth 600 field effect transistor; the other end of the sixth 600 resistor is connected with the gate of the sixth 601 field effect transistor; the other end of the sixth 609 resistor is connected with the gate of the sixth 605 field effect transistor.

[0023] Further, the model of the sixth 600 field effect transistor, the sixth 601 field effect transistor and the sixth 605 field effect transistor is ISC015N04NM5; the voltage selection of the sixth 601 field effect transistor, the sixth 601 field effect transistor and the sixth 605 field effect transistor is 40V rated voltage resistance. Further, the sixth 601 driver is arranged in the second driving control circuit.

[0024] The first pin of the sixth 601 driver is connected with the one end of the sixth 620 capacitor and the first driving control circuit respectively.

[0025] The third pin of the sixth 601 driver is connected with the one end of the sixth 622 capacitor and the one end of the sixth 607 resistor respectively.

[0026] The fourth pin of the sixth 601 driver is connected with the other end of the sixth 622 capacitor, the other end of the sixth 622 capacitor, the second control circuit and the second pin of the sixth 601 driver respectively; the fifth pin of the sixth 601 driver is connected with the second control circuit.

[0027] Further, the sixth 601 driver is integrated on the corresponding PCB board; the model of the sixth 601 driver is UCC27517DBVR.

[0028] Further, at least twenty capacitors are arranged in the third control circuit in parallel with each other; the sixth 601 inductor is arranged in the third control circuit, one end of the sixth 601 inductor is connected with the output end of the transformer.

[0029] The other end of the sixth 601 inductor is connected with the one end of the sixth 600 capacitor, the one end of the sixth 601 capacitor, the one end of the sixth 602 capacitor, the one end of the sixth 603 capacitor, the one end of the sixth 604 capacitor, the one end of the sixth 605 capacitor, the one end of the sixth 606 capacitor, the one end of the sixth 607 capacitor, the one end of the sixth 608 capacitor, the one end of the sixth 609 capacitor, the one end of the sixth 610 capacitor, the one end of the sixth 611 capacitor, the one end of the sixth 612 capacitor, the one end of the sixth 613 capacitor, the one end of the sixth 614 capacitor, the one end of the sixth 615 capacitor, the one end of the sixth 616 capacitor, the one end of the sixth 617 capacitor, the one end of the sixth 618 capacitor, the one end of the sixth 619 capacitor and the input end of the transformer respectively.

[0030] Another end of the sixth zero hundredth capacitor is connected with another end of the sixth zero first capacitor, another end of the sixth zero second capacitor, another end of the sixth zero third capacitor, another end of the sixth zero fourth capacitor, another end of the sixth zero fifth capacitor, another end of the sixth zero sixth capacitor, another end of the sixth zero seventh capacitor, another end of the sixth zero eighth capacitor, another end of the sixth zero ninth capacitor, another end of the sixth zero tenth capacitor, another end of the sixth zero eleventh capacitor, another end of the sixth zero twelfth capacitor, another end of the sixth zero thirteenth capacitor, another end of the sixth zero fourteenth capacitor, another end of the sixth zero fifteenth capacitor, another end of the sixth zero sixteenth capacitor, another end of the sixth zero seventeenth capacitor, another end of the sixth zero eighteenth capacitor, another end of the sixth zero nineteenth capacitor, the first driving control circuit, the first control circuit, the second control circuit and the second driving control circuit.

[0031] Further, the sixth zero first inductor is MHCP1104VE-R22-R.

[0032] The utility model discloses a circuit including first control circuit and second control circuit for adjusting transformer current, and first driving control circuit for driving control first control circuit and electrically connected with first control circuit, and second driving control circuit for driving control second control circuit and electrically connected with second control circuit, and third control circuit for filtering transformer output voltage, can realize reducing the loss of transformer because of current. BRIEF DESCRIPTION OF DRAWINGS

[0033] In order to more clearly illustrate the technical scheme in the embodiment of the utility model, the following will be needed to use the drawing in the embodiment description briefly introduces, obviously, the following description in the drawing is only some embodiments of the utility model, for the ordinary skilled person in the art, under the premise of not paying the creative labor, can also obtain other drawings according to these drawings,

[0034] Fig. 1 It is the framework schematic drawing of low loss control circuit for transformer of the utility model,

[0035] Fig. 2 It is the embodiment schematic drawing of low loss control circuit for transformer of the utility model,

[0036] In the figure: ZD601 - sixth zero one bidirectional trigger diode; Q602 - sixth zero two field effect tube; Q603 - sixth zero three field effect tube; Q604 - sixth zero four field effect tube; R605 - sixth zero five resistance; R603 - sixth zero three resistance; R602 - sixth zero two resistance; R608 - sixth zero eight resistance; M600 - sixth zero zero driver; C621 - sixth two one capacitor; C623 - sixth two three capacitor; R606 - sixth zero six resistance; ZD600 - sixth zero zero bidirectional trigger diode; Q600 - sixth zero zero field effect tube; Q601 - sixth zero one field effect tube; Q605 - sixth zero five field effect tube; R604 - sixth zero four resistance; R601 - sixth zero one resistance; R600 - sixth zero zero resistance; R609 - sixth zero nine resistance; M601 - sixth zero one driver; C620 - sixth two zero capacitor; C622 - sixth two two capacitor; R607 - sixth zero seven resistance; L601 - sixth zero one inductance; C600 - sixth zero zero capacitor; C601 - sixth zero one capacitor; C602 - sixth zero two capacitor; C603 - sixth zero three capacitor; C604 - sixth zero four capacitor; C605 - sixth zero five capacitor; C606 - sixth zero six capacitor; C607 - sixth zero seven capacitor; C608 - sixth zero eight capacitor; C609 - sixth zero nine capacitor; C610 - sixth one zero capacitor; C611 - sixth one one capacitor; C612 - sixth one two capacitor; C613 - sixth one three capacitor; C614 - sixth one four capacitor; C615 - sixth one five capacitor; C616 - sixth one six capacitor; C617 - sixth one seven capacitor; C618 - sixth one eight capacitor; C619 - sixth one nine capacitor. DETAILED DESCRIPTION

[0037] In order to better understand the purpose, technical scheme and advantages of the utility model, the utility model is further described below in combination with the drawings and specific embodiments. Those skilled in the art can easily understand other advantages and effects of the utility model from the content disclosed in the specification.

[0038] The utility model can also be implemented or applied through other different specific examples, and various modifications and changes can be made to the details in the specification based on different viewpoints and applications without departing from the spirit of the utility model.

[0039] It should be noted that if the utility model embodiments involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement condition, etc. between components in a certain specific posture (as shown in the drawings). If the specific posture changes, the directional indications will also change accordingly.

[0040] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Secondly, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0041] The present invention will be further described below with reference to the accompanying drawings.

[0042] like Figs. 1-2 As shown, this utility model provides a low-loss control circuit for transformers. The circuit includes a first control circuit and a second control circuit for adjusting the transformer current; a first drive control circuit electrically connected to the first control circuit and used to drive and control the first control circuit; and a second drive control circuit electrically connected to the second control circuit and used to drive and control the second control circuit.

[0043] The circuit also includes a third control circuit for filtering the transformer output voltage.

[0044] The first control circuit is equipped with a sixth 01 bidirectional trigger diode;

[0045] One end of the sixth 01 bidirectional trigger diode is connected to the drain of the sixth 02 field-effect transistor, the drain of the sixth 03 field-effect transistor, the drain of the sixth 04 field-effect transistor, and the input terminal of the transformer, respectively.

[0046] The other end of the sixth 01 bidirectional trigger diode is connected to the source of the sixth 02 field-effect transistor, the source of the sixth 03 field-effect transistor, the source of the sixth 04 field-effect transistor, one end of the sixth 05 resistor, the first drive control circuit, the second control circuit, the third control circuit, and the second drive control circuit, respectively.

[0047] The other end of the sixth 05 resistor is connected to one end of the sixth 03 resistor, one end of the sixth 02 resistor, and one end of the sixth 08 resistor, respectively.

[0048] The other end of the sixth 03 resistor is connected to the gate of the sixth 02 field-effect transistor; the other end of the sixth 02 resistor is connected to the gate of the sixth 03 field-effect transistor; and the other end of the sixth 08 resistor is connected to the gate of the sixth 04 field-effect transistor.

[0049] The model of the sixth 602 field effect tube, the sixth 603 field effect tube and the sixth 604 field effect tube is ISC015N04NM5; the voltage selection of the sixth 602 field effect tube, the sixth 603 field effect tube and the sixth 604 field effect tube is 40V rated voltage resistance.

[0050] The first driving control circuit is provided with a sixth 600 driver.

[0051] The first pin of the sixth 600 driver is connected with one end of a sixth 621 capacitor, the second driving control circuit respectively.

[0052] The third pin of the sixth 600 driver is connected with one end of a sixth 623 capacitor, one end of a sixth 606 resistor respectively.

[0053] The fourth pin of the sixth 600 driver is connected with the other end of the sixth 621 capacitor, the other end of the sixth 623 capacitor, the first control circuit, the second pin of the sixth 600 driver respectively; the fifth pin of the sixth 600 driver is connected with the first control circuit.

[0054] The sixth 600 driver is integrated on the corresponding PCB board; the model of the sixth 600 driver is UCC27517DBVR; that is, the sixth 600 driver is integrated on the PCB for further integration. The second control circuit is provided with a sixth 600 bidirectional trigger diode; one end of the sixth 600 bidirectional trigger diode is connected with the drain of a sixth 600 field effect tube, the drain of a sixth 601 field effect tube, the drain of a sixth 605 field effect tube, the input end of a transformer respectively.

[0055] The other end of the sixth 600 bidirectional trigger diode is connected with the source of the sixth 600 field effect tube, the source of the sixth 601 field effect tube, the source of the sixth 605 field effect tube, one end of a sixth 604 resistor, the first driving control circuit, the first control circuit, the third control circuit, the second driving control circuit respectively.

[0056] The other end of the sixth 604 resistor is connected with one end of a sixth 601 resistor, one end of a sixth 600 resistor, one end of a sixth 609 resistor respectively.

[0057] The other end of the sixth 601 resistor is connected with the gate of the sixth 600 field effect tube; the other end of the sixth 600 resistor is connected with the gate of the sixth 601 field effect tube; the other end of the sixth 609 resistor is connected with the gate of the sixth 605 field effect tube.

[0058] The model of the sixth 300 field effect tube, the sixth 301 field effect tube and the sixth 305 field effect tube is ISC015N04NM5; the voltage selection of the sixth 301 field effect tube, the sixth 301 field effect tube and the sixth 305 field effect tube is 40V rated voltage resistance.

[0059] The sixth 301 driver is arranged in the second driving control circuit; the first pin of the sixth 301 driver is connected with one end of the sixth 220 capacitor and the first driving control circuit respectively.

[0060] The third pin of the sixth 301 driver is connected with one end of the sixth 222 capacitor and one end of the sixth 307 resistor respectively.

[0061] The fourth pin of the sixth 301 driver is connected with the other end of the sixth 222 capacitor, the other end of the sixth 222 capacitor, the second control circuit and the second pin of the sixth 301 driver respectively; the fifth pin of the sixth 301 driver is connected with the second control circuit.

[0062] The sixth 301 driver is integrated on the corresponding PCB board; the model of the sixth 301 driver is UCC27517DBVR; that is, the sixth 301 driver is integrated on the PCB for further integration. At least twenty capacitors in parallel with each other are arranged in the third control circuit; a sixth 301 inductor is arranged in the third control circuit, one end of the sixth 301 inductor is connected with the output end of the transformer;

[0063] The other end of the sixth 301 inductor is connected with one end of the sixth 300 capacitor, one end of the sixth 301 capacitor, one end of the sixth 302 capacitor, one end of the sixth 303 capacitor, one end of the sixth 304 capacitor, one end of the sixth 305 capacitor, one end of the sixth 306 capacitor, one end of the sixth 307 capacitor, one end of the sixth 308 capacitor, one end of the sixth 309 capacitor, one end of the sixth 310 capacitor, one end of the sixth 311 capacitor, one end of the sixth 312 capacitor, one end of the sixth 313 capacitor, one end of the sixth 314 capacitor, one end of the sixth 315 capacitor, one end of the sixth 316 capacitor, one end of the sixth 317 capacitor, one end of the sixth 318 capacitor, one end of the sixth 319 capacitor and the input end of the transformer respectively.

[0064] The other end of the sixth 601 capacitor is connected with the other end of the sixth 602 capacitor, the other end of the sixth 603 capacitor, the other end of the sixth 604 capacitor, the other end of the sixth 605 capacitor, the other end of the sixth 606 capacitor, the other end of the sixth 607 capacitor, the other end of the sixth 608 capacitor, the other end of the sixth 609 capacitor, the other end of the sixth 610 capacitor, the other end of the sixth 611 capacitor, the other end of the sixth 612 capacitor, the other end of the sixth 613 capacitor, the other end of the sixth 614 capacitor, the other end of the sixth 615 capacitor, the other end of the sixth 616 capacitor, the other end of the sixth 617 capacitor, the other end of the sixth 618 capacitor, the other end of the sixth 619 capacitor, the first drive control circuit, the first control circuit, the second control circuit and the second drive control circuit.

[0065] The sixth 601 inductor is MHCP1104VE-R22-R, and in the scheme, a high-density integrated inductor is used.

[0066] Specifically, in the specific embodiment of the scheme, a low-loss control circuit applied to a transformer is provided, the first control circuit and the second control circuit for adjusting the current of the transformer in the circuit, that is, the first control circuit and the second control circuit, and the first drive control circuit and the second drive control circuit arranged in the circuit are combined to rectify the input current; wherein the first drive control circuit and the second drive control circuit are used to reduce the breakdown current.

[0067] In combination with the low-loss control circuit applied to the transformer in the scheme, for example, 6 PCBs (PCB boards in which the circuit of the scheme is built-in) are used for effective shunt, and the loss is effectively reduced, and in the application of 3200W output 264A, the loss is reduced by 600% ((264^2)*R / ((264 / 6)^2*6)). The third control circuit is arranged by connecting a plurality of capacitors in parallel and in combination with the inductor, and the output voltage of the transformer is filtered. Moreover, there is an LC filter on each PCB of the transformer, and the inductance of the above-mentioned circuit can be used to use a larger inductance, for example, 1uH or more, which is 10 times higher than the 0.1uH of the centralized inductor, so that the output ripple is lower.

[0068] The utility model discloses a circuit including the first control circuit and the second control circuit for adjusting the current of the transformer, and the first drive control circuit for driving and controlling the first control circuit and electrically connected with the first control circuit, and the second drive control circuit for driving and controlling the second control circuit and electrically connected with the second control circuit, and the third control circuit for filtering the output voltage of the transformer, which can reduce the loss of the transformer caused by the current.

[0069] The above-described embodiments only express several implementation manners of the present application, the description is relatively specific and detailed, but cannot be understood as a limitation on the patent scope of the present application. It should be pointed out that, for ordinary skilled persons in the art, without departing from the concept of the present application, several modifications and improvements can be made, which all belong to the protection scope of the present application. Therefore, the protection scope of the present application patent should be subject to the appended claims.

Claims

1. A low-loss control circuit applied to a transformer, characterized by, The circuit comprises a first control circuit and a second control circuit for regulating transformer current; and a first drive control circuit electrically connected with the first control circuit and used for driving control of the first control circuit; A second drive control circuit electrically connected with the second control circuit and used for driving control of the second control circuit; The circuit further comprises a third control circuit for filtering transformer output voltage.

2. A low-loss control circuit for a transformer according to claim 1, characterized in that The first control circuit is provided with a sixth 601 diode; One end of the sixth 601 diode is connected with the drain of a sixth 602 field effect tube, the drain of a sixth 603 field effect tube, the drain of a sixth 604 field effect tube and the input end of a transformer respectively; The other end of the sixth 601 diode is connected with the source of the sixth 602 field effect tube, the source of the sixth 603 field effect tube, the source of the sixth 604 field effect tube, one end of a sixth 605 resistor, the first drive control circuit, the second control circuit, the third control circuit and the second drive control circuit respectively. The other end of the sixth 605 resistor is connected with one end of a sixth 603 resistor, one end of a sixth 602 resistor and one end of a sixth 608 resistor respectively. The other end of the sixth 603 resistor is connected with the gate of the sixth 602 field effect tube; the other end of the sixth 602 resistor is connected with the gate of the sixth 603 field effect tube; and the other end of the sixth 608 resistor is connected with the gate of the sixth 604 field effect tube.

3. A low-loss control circuit for a transformer according to claim 2, characterized in that The sixth 602 field effect tube, the sixth 603 field effect tube and the sixth 604 field effect tube all have a model of ISCO15N04NM5; and the voltage selection of the sixth 602 field effect tube, the sixth 603 field effect tube and the sixth 604 field effect tube is 40V rated voltage resistance.

4. A low-loss control circuit for a transformer according to claim 1 or 2, characterized in that The first drive control circuit is provided with a sixth 600 driver; The first pin of the sixth 600 driver is connected with one end of a sixth 621 capacitor and the second drive control circuit respectively. The third pin of the sixth 600 driver is connected with one end of a sixth 623 capacitor and one end of a sixth 606 resistor respectively. The fourth pin of the sixth 600 driver is connected with the other end of the sixth 621 capacitor, the other end of the sixth 623 capacitor, the first control circuit, the second pin of the sixth 600 driver and the fifth pin of the sixth 600 driver respectively.

5. A low-loss control circuit for a transformer according to claim 4, characterized in that The sixth 600 driver is integrated on a corresponding PCB board; and the model of the sixth 600 driver is UCC27517DBVR.

6. A low-loss control circuit for a transformer according to claim 1 or 2, characterized in that The second control circuit is provided with a sixth 600 diode; One end of the sixth 600 diode is connected with the drain of a sixth 600 field effect tube, the drain of a sixth 601 field effect tube, the drain of a sixth 605 field effect tube and the input end of a transformer respectively. Another end of the sixth 600 bidirectional trigger diode is connected with the source of the sixth 600 field effect tube, the source of the sixth 601 field effect tube, the source of the sixth 605 field effect tube, one end of the sixth 604 resistor, the first driving control circuit, the first control circuit, the third control circuit and the second driving control circuit respectively; Another end of the sixth 604 resistor is connected with one end of the sixth 601 resistor, one end of the sixth 600 resistor and one end of the sixth 609 resistor respectively; Another end of the sixth 601 resistor is connected with the gate of the sixth 600 field effect tube, another end of the sixth 600 resistor is connected with the gate of the sixth 601 field effect tube, and another end of the sixth 609 resistor is connected with the gate of the sixth 605 field effect tube.

7. A low-loss control circuit for a transformer according to claim 6, characterized in that The sixth 600 field effect tube, the sixth 601 field effect tube and the sixth 605 field effect tube are all ISCO15N04NM5, and the voltage selection of the sixth 601 field effect tube, the sixth 601 field effect tube and the sixth 605 field effect tube is 40V rated voltage resistance.

8. A low-loss control circuit for a transformer according to claim 6, characterized in that The sixth 601 driver is arranged in the second driving control circuit. The first pin of the sixth 601 driver is connected with one end of the sixth 220 capacitor and the first driving control circuit respectively. The third pin of the sixth 601 driver is connected with one end of the sixth 222 capacitor and one end of the sixth 607 resistor respectively. The fourth pin of the sixth 601 driver is connected with the other end of the sixth 222 capacitor, the other end of the sixth 222 capacitor, the second control circuit and the second pin of the sixth 601 driver respectively, and the fifth pin of the sixth 601 driver is connected with the second control circuit.

9. A low-loss control circuit for a transformer according to claim 8, characterized in that The sixth 601 driver is integrated on the corresponding PCB board, and the model of the sixth 601 driver is UCC27517DBVR.

10. A low loss control circuit for a transformer as claimed in claim 6, wherein, At least twenty capacitors are arranged in the third control circuit in parallel with each other, and the sixth 601 inductor is arranged in the third control circuit, and one end of the sixth 601 inductor is connected with the output end of the transformer; The other end of the sixth 601 inductor is connected with one end of the sixth 600 capacitor, one end of the sixth 601 capacitor, one end of the sixth 602 capacitor, one end of the sixth 603 capacitor, one end of the sixth 604 capacitor, one end of the sixth 605 capacitor, one end of the sixth 606 capacitor, one end of the sixth 607 capacitor, one end of the sixth 608 capacitor, one end of the sixth 609 capacitor, one end of the sixth 610 capacitor, one end of the sixth 611 capacitor, one end of the sixth 612 capacitor, one end of the sixth 613 capacitor, one end of the sixth 614 capacitor, one end of the sixth 615 capacitor, one end of the sixth 616 capacitor, one end of the sixth 617 capacitor, one end of the sixth 618 capacitor, one end of the sixth 619 capacitor and the input end of the transformer respectively. The other end of the sixth 300 capacitor is connected with the other end of the sixth 301 capacitor, the other end of the sixth 302 capacitor, the other end of the sixth 303 capacitor, the other end of the sixth 304 capacitor, the other end of the sixth 305 capacitor, the other end of the sixth 306 capacitor, the other end of the sixth 307 capacitor, the other end of the sixth 308 capacitor, the other end of the sixth 309 capacitor, the other end of the sixth 310 capacitor, the other end of the sixth 311 capacitor, the other end of the sixth 312 capacitor, the other end of the sixth 313 capacitor, the other end of the sixth 314 capacitor, the other end of the sixth 315 capacitor, the other end of the sixth 316 capacitor, the other end of the sixth 317 capacitor, the other end of the sixth 318 capacitor, the other end of the sixth 319 capacitor, the first driving control circuit, the first control circuit, the second control circuit and the second driving control circuit.

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