CN206547052U

CN206547052U - A kind of two-way DC/DC device

Info

Publication number: CN206547052U
Application number: CN201720106988.9U
Authority: CN
Inventors: 李锟
Original assignee: GUANGZHOU JIANTE ELECTRONIC CO Ltd
Current assignee: GUANGZHOU JIANTE ELECTRONIC CO Ltd
Priority date: 2017-01-24
Filing date: 2017-01-24
Publication date: 2017-10-10
Anticipated expiration: 2027-01-24

Abstract

A kind of two-way DC/DC device of the utility model, the D poles of the first mos pipes connect the first coil of transformer；The S poles ground connection of first mos pipes；The G poles of 2nd mos pipes connect 10 jiaos；The D poles of 2nd mos pipes connect the first coil of transformer；The S poles ground connection of 2nd mos pipes；The G poles of 3rd mos pipes connect 7 jiaos；The D poles of 3rd mos pipes connect the second coil of transformer；The S poles of 3rd mos pipes connect the S poles of the 4th mos pipes and one end of the second electric capacity；The G poles of 4th mos pipes connect 9 jiaos；The D poles of 4th mos pipes connect the second coil of transformer；The S poles of 4th mos pipes connect the S poles of the 2nd mos pipes and one end of the second electric capacity；The other end of second electric capacity connects the second coil of transformer；One end of first electric capacity connects the first coil of transformer, and the other end of the first electric capacity connects the S poles of the 2nd mos pipes.

Description

Bidirectional DC/DC device

Technical Field

The utility model relates to an electric field, in particular to two-way DC/DC's device.

Background

There are some fields in the art where it is desirable to ensure isolation between supply voltages, but there is currently no solution to meet this need.

SUMMERY OF THE UTILITY MODEL

To the defect among the prior art, the utility model provides a two-way DC/DC's device for realize the isolation between the mains voltage.

Specifically, the utility model provides a following specific embodiment:

the embodiment of the utility model provides a two-way DC/DC's device is provided, include: the circuit comprises a self-excited oscillator, a transformer, a first mos tube, a second mos tube, a third mos tube, a fourth mos tube, a first capacitor and a second capacitor; wherein,

the self-excited oscillator comprises a second transformer, and the second transformer of the self-excited oscillator comprises 12 angles which are respectively 1 angle, 2 angle, 3 angle, 4 angle, 5 angle, 6 angle, 7 angle, 8 angle, 9 angle, 10 angle, 11 angle and 12 angle;

the G pole of the first mos tube is connected with 12 corners; the D pole of the first mos tube is connected with a first coil of the transformer; the S pole of the first mos tube is grounded;

the G pole of the second mos tube is connected with 10 corners; the D pole of the second mos tube is connected with the first coil of the transformer; the S pole of the second mos tube is grounded;

the G pole of the third mos tube is connected with a 7-angle tube; the D pole of the third mos tube is connected with a second coil of the transformer; the S pole of the third mos tube is connected with the S pole of the fourth mos tube and one end of the second capacitor;

the G pole of the fourth mos tube is connected with a 9-corner; the D pole of the fourth mos tube is connected with a second coil of the transformer; the S pole of the fourth mos tube is connected with the S pole of the second mos tube and one end of the second capacitor;

the other end of the second capacitor is connected with a second coil of the transformer;

one end of the first capacitor is connected with the first coil of the transformer, and the other end of the first capacitor is connected with the S pole of the second mos tube.

In a specific embodiment, the free running oscillator further comprises: the first resistor, the seventh triode, the eighth triode and the sixth capacitor; wherein, the 2-corner is connected with a power supply;

one end of the first resistor is connected with the external connecting end and the 2-angle end, and the other end of the first resistor is connected with one end of the sixth capacitor and the 5-angle end; the other end of the sixth capacitor is grounded;

the base electrode of the seventh triode is connected with the 4-angle resistor; the emitter of the seventh triode is grounded; the collector of the seventh triode is connected with the 1 corner;

the base electrode of the eighth triode is connected with the corner 6; an emitter of the eighth triode is grounded; and the collector of the eighth triode is connected with the 3-corner resistor.

In a particular embodiment, the capacitor is in particular a fixed capacitor.

In a specific embodiment, the first capacitance is the same as the second capacitance.

In a specific embodiment, the first resistor is a resistor with an adjustable resistance value.

In a specific embodiment, the first MOS transistor is an N-channel MOS transistor.

In a specific embodiment, the first mos tube, the second mos tube, the third mos tube, and the fourth mos tube are the same.

In a specific embodiment, the seventh transistor is the same as the eighth transistor.

In a specific embodiment, the seventh transistor is a germanium transistor.

In a specific embodiment, the sixth capacitor is specifically an electrolytic capacitor.

Therefore, the utility model relates to a two-way DC/DC's device includes: the circuit comprises a self-excited oscillator, a transformer, a first mos tube, a second mos tube, a third mos tube, a fourth mos tube, a first capacitor and a second capacitor; the self-excited oscillator comprises a second transformer, and the second transformer of the self-excited oscillator comprises 12 angles which are respectively 1 angle, 2 angles, 3 angles, 4 angles, 5 angles, 6 angles, 7 angles, 8 angles, 9 angles, 10 angles, 11 angles and 12 angles; the G pole of the first mos tube is connected with 12 corners; the D pole of the first mos tube is connected with a first coil of the transformer; the S pole of the first mos tube is grounded; the G pole of the second mos tube is connected with 10 corners; the D pole of the second mos tube is connected with the first coil of the transformer; the S pole of the second mos tube is grounded; the G pole of the third mos tube is connected with a 7-angle tube; the D pole of the third mos tube is connected with a second coil of the transformer; the S pole of the third mos tube is connected with the S pole of the fourth mos tube and one end of the second capacitor; the G pole of the fourth mos tube is connected with a 9-corner; the D pole of the fourth mos tube is connected with a second coil of the transformer; the S pole of the fourth mos tube is connected with the S pole of the second mos tube and one end of the second capacitor; the other end of the second capacitor is connected with a second coil of the transformer; one end of the first capacitor is connected with the first coil of the transformer, and the other end of the first capacitor is connected with the S pole of the second mos tube. Thereby achieving voltage isolation of the power supply.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic structural diagram of a bidirectional DC/DC apparatus according to an embodiment of the present invention.

Illustration of the drawings:

1: bidirectional DC/DC module

11: self-excited oscillator

111: second transformer 112: a first resistor

113: the seventh transistor 114: eighth triode

115: sixth capacitor

12: transformer device

13: first mos tube 14: second mos tube

15: third mos tube 16: fourth mos tube

17: first capacitor

18: second capacitor

Detailed Description

Various embodiments of the present disclosure will be described more fully hereinafter. The present disclosure is capable of various embodiments and of modifications and variations therein. However, it should be understood that: there is no intention to limit the various embodiments of the disclosure to the specific embodiments disclosed herein, but rather, the disclosure is to cover all modifications, equivalents, and/or alternatives falling within the spirit and scope of the various embodiments of the disclosure.

Hereinafter, the term "includes" or "may include" used in various embodiments of the present disclosure indicates the presence of the disclosed functions, operations, or elements, and does not limit the addition of one or more functions, operations, or elements. Furthermore, as used in various embodiments of the present disclosure, the terms "comprising," "having," and their derivatives, are intended to be only representative of the particular features, integers, steps, operations, elements, components, or combinations of the foregoing, and should not be construed as first excluding the existence of, or adding to, one or more other features, integers, steps, operations, elements, components, or combinations of the foregoing.

In various embodiments of the disclosure, the expression "or" at least one of a or/and B "includes any or all combinations of the words listed simultaneously. For example, the expression "a or B" or "at least one of a or/and B" may include a, may include B, or may include both a and B.

Expressions (such as "first", "second", and the like) used in various embodiments of the present disclosure may modify various constituent elements in the various embodiments, but may not limit the respective constituent elements. For example, the above description does not limit the order and/or importance of the elements described. The foregoing description is for the purpose of distinguishing one element from another. For example, the first user device and the second user device indicate different user devices, although both are user devices. For example, a first element could be termed a second element, and, similarly, a second element could be termed a first element, without departing from the scope of various embodiments of the present disclosure.

It should be noted that: if it is described that one constituent element is "connected" to another constituent element, the first constituent element may be directly connected to the second constituent element, and a third constituent element may be "connected" between the first constituent element and the second constituent element. In contrast, when one constituent element is "directly connected" to another constituent element, it is understood that there is no third constituent element between the first constituent element and the second constituent element.

The term "user" used in various embodiments of the present disclosure may indicate a person using an electronic device or a device using an electronic device (e.g., an artificial intelligence electronic device).

The terminology used in the various embodiments of the present disclosure is for the purpose of describing particular embodiments only and is not intended to be limiting of the various embodiments of the present disclosure. As used herein, the singular forms are intended to include the plural forms as well, unless the context clearly indicates otherwise. Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the various embodiments of the present disclosure belong. The terms (such as those defined in commonly used dictionaries) should be interpreted as having a meaning that is consistent with their contextual meaning in the relevant art and will not be interpreted in an idealized or overly formal sense unless expressly so defined in various embodiments of the present disclosure.

Example 1

Embodiment 1 of the utility model discloses a two-way DC/DC's device 1, as shown in fig. 1, include: the circuit comprises a self-excited oscillator 11, a transformer 12, a first mos tube 13, a second mos tube 14, a third mos tube 15, a fourth mos tube 16, a first capacitor 17 and a second capacitor 18; wherein,

the self-excited oscillator comprises a second transformer 111, and the second transformer of the self-excited oscillator comprises 12 angles which are respectively 1 angle, 2 angles, 3 angles, 4 angles, 5 angles, 6 angles, 7 angles, 8 angles, 9 angles, 10 angles, 11 angles and 12 angles;

In one particular embodiment, as shown in FIG. 1, the first winding is the left side winding of the transformer 12 and the second winding is the right side winding of the transformer 12.

In particular, a self-excited oscillator (self-excited oscillator) is a feedback control system. If the closed-loop poles of the system have a pair of conjugate poles located on the right half-plane of S, the impulse response will produce a sine wave with an exponentially increasing magnitude. Theoretically, the amplitude of the oscillation will increase indefinitely. However, due to the nonlinear effect of the system internal components, the increased oscillation causes the internal parameters of the system to automatically change, so that the conjugate pole on the right half-plane of S is finally shifted to the j omega axis, and the sine wave is stabilized in constant amplitude before oscillation.

In an amplifying circuit, in order to improve circuit performance, negative feedback (intermediate frequency region) is generally introduced. When the circuit additional phase shift (high frequency region or low frequency region) changes the polarity of the feedback signal, the negative feedback in the circuit becomes positive feedback. At this time, if the gain of the feedback loop satisfies a certain condition, the circuit will generate self-oscillation.

In a specific embodiment, as shown in fig. 1, the free-running oscillator 11 further includes: a first resistor 112, a seventh transistor 113, an eighth transistor 114, and a sixth capacitor 115; wherein, the 2-corner is connected with a power supply;

Therefore, specifically, R1, C6, Q7, Q8 and T2 form a self-excited oscillator, Q1 and Q2 work in a push-pull state, Q3 and Q4 are the same, voltage is connected to any end, isolated voltage can be obtained at the other end, and C1 and C2 are used as filter capacitors.

In a particular embodiment, the capacitor is in particular a fixed capacitor.

The capacitance, i.e. the capacity of a capacitor, usually referred to simply as its capacity to hold a charge, is denoted by the letter C. Definition 1: a capacitor, as the name implies, is an 'electrically charged container', a device that contains an electrical charge. English name: a capacitor. The capacitor is one of electronic elements widely used in electronic equipment, and is widely applied to aspects of blocking AC, coupling, bypassing, filtering, tuning loop, energy conversion, control and the like in a circuit. Definition 2: a capacitor is formed between any two conductors (including wires) which are insulated and closely spaced from each other.

In particular, when filtering is performed, a capacitor used in a filter circuit is called a filter capacitor, and such a capacitor circuit is used in a power supply filter and various filter circuits, and the filter capacitor removes a signal in a certain frequency band from a total signal.

The resistance, i.e. the Resistor (Resistor), is commonly and directly called as the resistance in daily life. Is a current limiting element, and after a resistor is connected in a circuit, the resistance value of the resistor is fixed, generally two pins, and the resistor can limit the current passing through a branch connected with the resistor. The resistance value that cannot be changed is called a fixed resistor. Variable resistance is called a potentiometer or a variable resistor. Ideally the resistor is linear, i.e. the instantaneous current through the resistor is proportional to the applied instantaneous voltage. A variable resistor for voltage division. On the exposed resistor body, one to two movable metal contacts are pressed. The contact location determines the resistance between either end of the resistor and the contact. Therefore, the resistance value is adjustable, namely the electric shock position is adjustable.

And the MOS tube is an insulating field effect tube in an integrated circuit. The MOS is called Metal-Oxide-Semiconductor (MOS-Semiconductor), and specifically, this name describes the structure of a MOS transistor in an integrated circuit, namely: and adding silicon dioxide and metal on a semiconductor device with a certain structure to form a grid electrode. The source and drain of the MOS tube can be exchanged, and are both N-type regions formed in the P-type back gate. In most cases, the two regions are identical, and even swapping the two ends does not affect the performance of the device, and such a device is considered symmetric.

In a specific embodiment, the seventh transistor is a germanium transistor.

The triode is a semiconductor device for controlling current, is used for amplifying a weak signal into an electric signal with a large amplitude value, and is also used as a contactless switch. The transistor is one of semiconductor basic components, has the function of current amplification, and is a core element of an electronic circuit. The triode is formed by manufacturing two PN junctions which are very close to each other on a semiconductor substrate, the whole semiconductor is divided into three parts by the two PN junctions, the middle part is a base region, the two side parts are an emitter region and a collector region, and the arrangement modes include PNP and NPN.

The specific triode can be divided into a silicon triode and a germanium triode according to the material, and in a specific embodiment, the germanium triode can be selected.

Those skilled in the art will appreciate that the drawings are merely schematic representations of one preferred implementation scenario and that the blocks or flow diagrams in the drawings are not necessarily required to practice the present invention.

Those skilled in the art will appreciate that the modules in the devices in the implementation scenario may be distributed in the devices in the implementation scenario according to the description of the implementation scenario, or may be located in one or more devices different from the present implementation scenario with corresponding changes. The modules of the implementation scenario may be combined into one module, or may be further split into a plurality of sub-modules.

The sequence numbers of the present invention are only for description, and do not represent the advantages and disadvantages of the implementation scenario.

The above disclosure is only a few specific implementation scenarios of the present invention, however, the present invention is not limited thereto, and any changes that can be considered by those skilled in the art shall fall within the protection scope of the present invention.

Claims

1. A bi-directional DC/DC apparatus, comprising: the circuit comprises a self-excited oscillator, a transformer, a first mos tube, a second mos tube, a third mos tube, a fourth mos tube, a first capacitor and a second capacitor; wherein,

2. The apparatus of claim 1, wherein the free running oscillator further comprises: the first resistor, the seventh triode, the eighth triode and the sixth capacitor; wherein, the 2-corner is connected with a power supply;

3. The device according to claim 1, wherein the capacitance is in particular a fixed capacitance.

4. The apparatus of claim 1, wherein the first capacitance is the same as the second capacitance.

5. The apparatus of claim 2, wherein the first resistor is a resistor with an adjustable resistance value.

6. The apparatus of claim 1, wherein the first MOS transistor is an N-channel MOS transistor.

7. The device of claim 1, wherein the first mos tube, the second mos tube, the third mos tube, and the fourth mos tube are the same.

8. The apparatus of claim 2, wherein the seventh transistor is identical to the eighth transistor.

9. The apparatus of claim 2, wherein the seventh transistor is a germanium transistor.

10. The device according to claim 2, characterized in that the sixth capacitor is embodied as an electrolytic capacitor.