CN105811767A - Bi-directional DC/DC converter circuit and bi-directional DC/DC conversion device - Google Patents
Bi-directional DC/DC converter circuit and bi-directional DC/DC conversion device Download PDFInfo
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- CN105811767A CN105811767A CN201610330324.0A CN201610330324A CN105811767A CN 105811767 A CN105811767 A CN 105811767A CN 201610330324 A CN201610330324 A CN 201610330324A CN 105811767 A CN105811767 A CN 105811767A
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- 239000003054 catalyst Substances 0.000 claims description 13
- 229910052710 silicon Inorganic materials 0.000 claims description 3
- 239000010703 silicon Substances 0.000 claims description 3
- 230000006870 function Effects 0.000 description 7
- 239000003990 capacitor Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 230000003139 buffering effect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M3/00—Conversion of DC power input into DC power output
- H02M3/02—Conversion of DC power input into DC power output without intermediate conversion into AC
- H02M3/04—Conversion of DC power input into DC power output without intermediate conversion into AC by static converters
- H02M3/10—Conversion of DC power input into DC power output without intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M3/145—Conversion of DC power input into DC power output without intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
- H02M3/155—Conversion of DC power input into DC power output without intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
- H02M3/156—Conversion of DC power input into DC power output without intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators
- H02M3/158—Conversion of DC power input into DC power output without intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators including plural semiconductor devices as final control devices for a single load
- H02M3/1582—Buck-boost converters
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/32—Means for protecting converters other than automatic disconnection
- H02M1/34—Snubber circuits
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- Dc-Dc Converters (AREA)
Abstract
The invention discloses a bi-directional DC/DC converter circuit, which comprises a bi-directional DC/DC converter and a buffer circuit, wherein the bi-directional DC/DC converter comprises a first DC positive terminal, a first DC negative terminal, a second DC positive terminal and a second DC negative terminal; the first DC negative terminal is connected with the second DC negative terminal and is connected with the first end of the buffer circuit; the first DC positive terminal and the second end of the buffer circuit are connected with a positive terminal and a negative terminal of a first DC voltage respectively; and the second DC positive end and the second end of the buffer circuit are used for being connected with the positive terminal and the negative terminal of a second DC voltage respectively. Protection on the bi-directional DC/DC converter can be achieved by the buffer circuit; the number of used devices is reduced; and the cost is reduced. The invention further discloses a bi-directional DC/DC conversion device.
Description
Technical field
The present invention relates to DC/DC changer technical field, particularly relate to a kind of two-way DC/DC converter circuit and two-way DC/DC converting means.
Background technology
The energy is that the mankind depend on for existence and the basis of social development progress, current economical develops rapidly so that the demand of the energy is growing；But the fossil energy such as coal, oil and natural gas is petered out, and environment is in use caused very serious pollution and destruction by it so that the energy and environmental problem become the two large problems that the 21 century mankind are in the urgent need to address.In recent years, along with the effort R and D of countries in the world, the mankind achieve huge progress in the application of regenerative resource.
Two-way DC/DC changer, can convert a kind of direct current energy to another form of direct current energy, mainly voltage, electric current be realized conversion.It is widely used in fields such as regenerative resource, power system, traffic, space flight and aviation, computer and communication, household electrical appliance, defence and military, Industry Control.
In prior art, in order to two-way DC/DC changer is protected, the DC side at its two ends is all plus buffer circuit, it can thus be seen that existing this protected mode needs to use two-way buffer circuit, device is many, high in cost of production problem to there is use.
Summary of the invention
The invention provides a kind of two-way DC/DC converter circuit, adopt a road buffer circuit can realize the protection to two-way DC/DC changer, decrease the use number of device, reduce cost.
The invention provides a kind of two-way DC/DC converter circuit, including: two-way DC/DC changer and buffer circuit；Wherein:
Described two-way DC/DC changer includes the first direct current anode, the first direct current negative terminal, the second direct current anode, the second direct current negative terminal, and described first direct current negative terminal is connected with described second direct current negative terminal and is connected with the first end of buffer circuit；
Second end of described first direct current anode and described buffer circuit connects the positive and negative end of the first DC voltage respectively, and the second end of described second direct current anode and described buffer circuit is respectively used to connect the positive and negative end of the second DC voltage.
Preferably, described two-way DC/DC changer includes: an IGBT pipe, the 2nd IGBT pipe, the first diode, the second diode, the first electric capacity, the second electric capacity and inductance, wherein:
The colelctor electrode of a described IGBT pipe is connected with described first direct current anode, the emitter stage of the oneth IGBT pipe is connected with the colelctor electrode of described 2nd IGBT pipe, the emitter stage of the 2nd IGBT pipe is connected with described first direct current negative terminal and described second direct current negative terminal respectively, the anode of described second diode is connected with the emitter stage of described 2nd IGBT pipe, the negative electrode of described second diode is connected with the colelctor electrode of described 2nd IGBT pipe, the anode of described first diode is connected with the emitter stage of a described IGBT pipe, the negative electrode of described first diode is connected with the colelctor electrode of a described IGBT pipe；
The two ends of described first electric capacity are connected with described first direct current anode and described first direct current negative terminal respectively, and the two ends of described second electric capacity are connected with described second direct current anode and described second direct current negative terminal respectively；
One end of described inductance is connected with the emitter stage of a described IGBT pipe, and the other end of described inductance is connected with described second direct current anode.
Preferably, described two-way DC/DC changer includes: an IGBT pipe, the 2nd IGBT pipe, the 3rd IGBT pipe, the 4th IGBT pipe, the 5th IGBT pipe, the 6th IGBT pipe, the first diode, the second diode, the 3rd diode, the 4th diode, the 5th diode, the 6th diode, the first electric capacity, the second electric capacity, the first inductance, the second inductance and the 3rd inductance, wherein:
The colelctor electrode of a described IGBT pipe is connected with described first direct current anode, and the emitter stage of an IGBT pipe is connected with the colelctor electrode of described 2nd IGBT pipe, and the emitter stage of the 2nd IGBT pipe is connected with described first direct current negative terminal and described second direct current negative terminal respectively；The anode of described first diode is connected with the emitter stage of a described IGBT pipe, and the negative electrode of described first diode is connected with the colelctor electrode of a described IGBT pipe；The anode of described second diode is connected with the emitter stage of described 2nd IGBT pipe, and the negative electrode of described second diode is connected with the colelctor electrode of described 2nd IGBT pipe；One end of described first inductance is connected with the emitter stage of a described IGBT pipe, and the other end of described first inductance is connected with described second direct current anode；
The two ends of described first electric capacity are connected with described first direct current anode and described first direct current negative terminal respectively, and the two ends of described second electric capacity are connected with described second direct current anode and described second direct current negative terminal respectively；
The colelctor electrode of described 3rd IGBT pipe is connected with described first direct current anode, and the emitter stage of the 3rd IGBT pipe is connected with the colelctor electrode of described 4th IGBT pipe, and the emitter stage of the 4th IGBT pipe is connected with described first direct current negative terminal and described second direct current negative terminal respectively；The anode of described 3rd diode is connected with the emitter stage of described 3rd IGBT pipe, and the negative electrode of described 3rd diode is connected with the colelctor electrode of described 3rd IGBT pipe；The anode of described 4th diode is connected with the emitter stage of described 4th IGBT pipe, and the negative electrode of described 4th diode is connected with the colelctor electrode of described 4th IGBT pipe；One end of described second inductance is connected with the emitter stage of described 3rd IGBT pipe, and the other end of described second inductance is connected with described second direct current anode；
The colelctor electrode of described 5th IGBT pipe is connected with described first direct current anode, and the emitter stage of the 5th IGBT pipe is connected with the colelctor electrode of described 6th IGBT pipe, and the emitter stage of the 6th IGBT pipe is connected with described first direct current negative terminal and described second direct current negative terminal respectively；The anode of described 5th diode is connected with the emitter stage of described 5th IGBT pipe, and the negative electrode of described 5th diode is connected with the colelctor electrode of described 5th IGBT pipe；The anode of described 6th diode is connected with the emitter stage of described 6th IGBT pipe, and the negative electrode of described 6th diode is connected with the colelctor electrode of described 6th IGBT pipe；One end of described 3rd inductance is connected with the emitter stage of described 5th IGBT pipe, and the other end of described 3rd inductance is connected with described second direct current anode.
Preferably, described buffer circuit includes: gate-controlled switch and current-limiting resistance；Wherein said current-limiting resistance is connected in parallel on described gate-controlled switch two ends.
Preferably, described gate-controlled switch is catalyst.
Preferably, described gate-controlled switch is relay.
Preferably, described gate-controlled switch is controllable silicon.
A kind of two-way DC/DC converting means, including: two-way DC/DC converter circuit.
From such scheme, the two-way DC/DC converter circuit of one provided by the invention, including two-way DC/DC changer and buffer circuit, two-way DC/DC changer includes the first direct current anode, the first direct current negative terminal, the second direct current anode, the second direct current negative terminal, and the first direct current negative terminal is connected with described second direct current negative terminal and is connected with the first end of buffer circuit；Second end of the first direct current anode and described buffer circuit connects the positive and negative end of the first DC voltage respectively, and the second end of the second direct current anode and described buffer circuit is respectively used to connect the positive and negative end of the second DC voltage.By adopting a road buffer circuit just can realize the protection to two-way DC/DC changer, decrease the use number of device, reduce cost.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, the accompanying drawing used required in embodiment or description of the prior art will be briefly described below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the premise not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the schematic diagram of a kind of two-way DC/DC converter circuit disclosed in the embodiment of the present invention one；
Fig. 2 is the schematic diagram of a kind of two-way DC/DC converter circuit disclosed in the embodiment of the present invention two；
Fig. 3 is the schematic diagram of a kind of two-way DC/DC converter circuit disclosed in the embodiment of the present invention three；
Fig. 4 is the structural representation of a kind of two-way DC/DC converting means disclosed in the embodiment of the present invention four.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is only a part of embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, the every other embodiment that those of ordinary skill in the art obtain under not making creative work premise, broadly fall into the scope of protection of the invention.
As it is shown in figure 1, disclosed in the embodiment of the present invention one a kind of two-way DC/DC converter circuit, including two-way DC/DC changer 11 and buffer circuit 12；Wherein:
Two-way DC/DC changer 11 includes the first direct current anode, the first direct current negative terminal, the second direct current anode, the second direct current negative terminal, the first direct current negative terminal and the second direct current negative terminal and is connected and is connected with the first end of buffer circuit 12；
Second end of the first direct current anode and buffer circuit 12 connects the positive and negative end of the first DC voltage V1 respectively, and the second end of the second direct current anode and buffer circuit 12 is respectively used to connect the positive and negative end of the second DC voltage V2.
In the above-described embodiments; adopt a road buffer circuit 12; buffer circuit 12 is connected to the DC side at two-way DC/DC changer 11 two ends; the two ends of two-way DC/DC changer 11 can be powered on simultaneously play a protective role; need the use number adopting two-way buffer circuit to decrease device relative to prior art, reduce cost.
As shown in Figure 2, a kind of two-way DC/DC converter circuit disclosed in the embodiment of the present invention two, including: the first electric capacity C1, the second electric capacity C2, an IGBT pipe IGBT1, the 2nd IGBT pipe IGBT2, the first diode D1, the second diode D2, inductance L1, catalyst KM1 and current-limiting resistance R1；Wherein: the first electric capacity C1, the second electric capacity C2, an IGBT pipe IGBT1, the 2nd IGBT pipe IGBT2, the first diode D1, the second diode D2 and inductance L1 constitute two-way DC/DC changer；Catalyst KM1 and current-limiting resistance R1 constitutes buffer circuit；
The colelctor electrode of the oneth IGBT pipe IGBT1 and the first direct current anode are connected, the emitter stage of the oneth IGBT pipe IGBT1 and the colelctor electrode of the 2nd IGBT pipe IGBT2 are connected, the emitter stage of the 2nd IGBT pipe IGBT2 is connected with the first direct current negative terminal and the second direct current negative terminal respectively, the anode of the second diode D2 and the emitter stage of the 2nd IGBT pipe IGBT2 are connected, the negative electrode of the second diode D2 and the colelctor electrode of the 2nd IGBT pipe IGBT2 are connected, the anode of the first diode D1 and the emitter stage of an IGBT pipe IGBT1 are connected, the negative electrode of the first diode D1 and the colelctor electrode of an IGBT pipe IGBT1 are connected；
The two ends of the first electric capacity C1 are connected with the first direct current anode and the first direct current negative terminal respectively, and the two ends of the second electric capacity C2 are connected with the second direct current anode and the second direct current negative terminal respectively；
One end of inductance L1 is connected with the emitter stage of an IGBT pipe IGBT1, and the other end of inductance L1 and the second direct current anode are connected；
Current-limiting resistance R1 is connected in parallel on the two ends of catalyst KM1, and one end of catalyst KM1 is connected with the emitter stage of the 2nd IGBT pipe IGBT2, and the other end of catalyst KM1 and the first direct current negative terminal and the second direct current negative terminal are connected.
In the above-described embodiments, the inverse parallel fly-wheel diode of the first diode D1 and the second diode D2 respectively IGBT pipe IGBT1 and the two IGBT pipe IGBT2, first electric capacity C1 is Support Capacitor or the filter capacitor of the first positive and negative end of DC voltage V1, and the second electric capacity C2 is Support Capacitor or the filter capacitor of the second positive and negative end of DC voltage V2.
When the first DC terminal powers on, first DC voltage V1 reduces the voltage to the second DC voltage V2 output through the Buck conversion circuit being made up of an IGBT pipe IGBT1, the second diode D2 and inductance L1, electric current is through the first electric capacity C1 and current-limiting resistance R1, metering function by current-limiting resistance R1；When the second DC terminal powers on, second DC voltage V2 brings the voltage up to the first DC voltage V1 output through the boost type translation circuit that inductance L1, the 2nd IGBT pipe IGBT2 and the first diode D1 form, electric current is through the second electric capacity C2 and current-limiting resistance R1, metering function by current-limiting resistance R1.As can be seen here, no matter the first DC terminal and which end of the second DC terminal power on, current-limiting resistance R1 can play metering function, and when the first DC terminal and the second DC terminal voltage reach certain value, catalyst KM1 adhesive short circuit current limitation resistance R1, the buffering that powers on completes.
As it is shown on figure 3, be the present invention disclosed a kind of two-way DC/DC converter circuit on the basis of embodiment two, two-way DC/DC changer Zhong mono-road voltage raising and reducing formula translation circuit is increased three tunnels by the basis of embodiment two.
Two-way DC/DC changer includes: an IGBT pipe IGBT1, the 2nd IGBT pipe IGBT2, the 3rd IGBT pipe IGBT3, the 4th IGBT pipe IGBT4, the 5th IGBT pipe IGBT5, the 6th IGBT pipe IGBT6, the first diode D1, the second diode D2, the 3rd diode D3, the 4th diode D4, the 5th diode D5, the 6th diode D6, the first electric capacity C1, the second electric capacity C2, the first inductance L1, the second inductance L2 and the three inductance L3, wherein:
The colelctor electrode of the oneth IGBT pipe IGBT1 is connected with described first direct current anode, and the emitter stage of an IGBT pipe IGBT1 and the colelctor electrode of the 2nd IGBT pipe IGBT2 are connected, and the emitter stage of the 2nd IGBT pipe IGBT2 is connected with the first direct current negative terminal and the second direct current negative terminal respectively；
The anode of the first diode D1 and the emitter stage of an IGBT pipe IGBT1 are connected, and the negative electrode of the first diode D1 and the colelctor electrode of an IGBT pipe IGBT1 are connected；
The anode of the second diode D2 and the emitter stage of the 2nd IGBT pipe IGBT2 are connected, and the negative electrode of the second diode D2 and the colelctor electrode of the 2nd IGBT pipe IGBT2 are connected；One end of first inductance L1 is connected with the emitter stage of an IGBT pipe IGBT1, and the other end of the first inductance L1 and the second direct current anode are connected；
The two ends of the first electric capacity C1 are connected with institute's the first direct current anode and the first direct current negative terminal respectively, and the two ends of the second electric capacity C2 are connected with the second direct current anode and the second direct current negative terminal respectively；
The colelctor electrode of the 3rd IGBT pipe IGBT3 and the first direct current anode are connected, and the emitter stage of the 3rd IGBT pipe IGBT3 and the colelctor electrode of the 4th IGBT pipe IGBT4 are connected, and the emitter stage of the 4th IGBT pipe IGBT4 is connected with the first direct current negative terminal and the second direct current negative terminal respectively；
The anode of the 3rd diode D3 and the emitter stage of the 3rd IGBT pipe IGBT3 are connected, and the negative electrode of the 3rd diode D3 and the colelctor electrode of the 3rd IGBT pipe IGBT3 are connected；
The anode of the 4th diode D4 and the emitter stage of the 4th IGBT pipe IGBT4 are connected, and the negative electrode of the 4th diode D4 and the colelctor electrode of the 4th IGBT pipe IGBT4 are connected；
One end of second inductance L2 is connected with the emitter stage of the 3rd IGBT pipe IGBT3, and the other end of the second inductance L2 and the second direct current anode are connected；
The colelctor electrode of the 5th IGBT pipe IGBT5 and the first direct current anode are connected, and the emitter stage of the 5th IGBT pipe IGBT5 and the colelctor electrode of the 6th IGBT pipe IGBT6 are connected, and the emitter stage of the 6th IGBT pipe IGBT6 is connected with the first direct current negative terminal and the second direct current negative terminal respectively；
The anode of the 5th diode D5 and the emitter stage of the 5th IGBT pipe IGBT5 are connected, and the negative electrode of the 5th diode D5 and the colelctor electrode of the 5th IGBT pipe IGBT5 are connected；
The anode of the 6th diode D6 and the emitter stage of the 6th IGBT pipe IGBT6 are connected, and the negative electrode of the 6th diode D6 and the colelctor electrode of the 6th IGBT pipe IGBT6 are connected；
One end of 3rd inductance L3 is connected with the emitter stage of the 5th IGBT pipe IGBT5, and the other end of the 3rd inductance L3 and the second direct current anode are connected；
Current-limiting resistance R1 is connected in parallel on the two ends of catalyst KM1, one end of catalyst KM1 is connected with the emitter stage of the 2nd IGBT pipe IGBT2, the emitter stage of the 3rd IGBT pipe IGBT3 and the emitter stage of the 4th IGBT pipe IGBT4, and the other end of catalyst KM1 and the first direct current negative terminal and the second direct current negative terminal are connected.
Oneth IGBT pipe IGBT1, the second diode D2, the first inductance L1 form a road Buck conversion circuit, 3rd IGBT pipe IGBT3, the 4th diode D4, the second inductance L2 form a road Buck conversion circuit, 5th IGBT pipe IGBT5, the 6th diode D6, the 3rd inductance L3 form a road Buck conversion circuit, and this three roads Buck conversion circuit parallel connection can increase the current carrying capacities of two-way DC/DC changer；Same first inductance L1, the 2nd IGBT pipe IGBT2, the first diode D1 form a road boost type translation circuit, second inductance L2, the 4th IGBT pipe IGBT4, the 3rd diode D3 form a road boost type translation circuit, 3rd inductance L3, stream IGBT pipe IGBT6, the 5th diode D5 form a road boost type translation circuit, and this three roads boost type translation circuit parallel connection can increase the current carrying capacities of two-way DC/DC changer.It is depressured to the second DC voltage V2 output after first DC voltage V1 Jing San Road Buck conversion circuit parallel connection, or after the second DC voltage V2 Jing San Road boost type translation circuit parallel connection, boosts to the first DC voltage V1 output.
When the first DC terminal powers on, first DC voltage V1 is through being formed a road Buck conversion circuit by an IGBT pipe IGBT1, the second diode D2, the first inductance L1,3rd IGBT pipe IGBT3, the 4th diode D4, the second inductance L2 form a road Buck conversion circuit, 5th IGBT pipe IGBT5, the 6th diode D6, the 3rd inductance L3 form a road Buck conversion circuit, three tunnel parallel connection Buck conversion circuits reduce the voltage to the second DC voltage V2 output, electric current is through the first electric capacity C1 and current-limiting resistance R1, metering function by current-limiting resistance R1；When the second DC terminal powers on, second DC voltage V2 is through being formed a road boost type translation circuit by the first inductance L1, the 2nd IGBT pipe IGBT2, the first diode D1, second inductance L2, the 4th IGBT pipe IGBT4, the 3rd diode D3 form a road boost type translation circuit, 3rd inductance L3, stream IGBT pipe IGBT6, the 5th diode D5 form a road boost type translation circuit, three road parallelly connected step-up type translation circuits bring the voltage up to the first DC voltage V1 output, electric current is through the second electric capacity C2 and current-limiting resistance R1, metering function by current-limiting resistance R1.As can be seen here, no matter the first DC terminal and which end of the second DC terminal power on, current-limiting resistance R1 can play metering function, and when the first DC terminal and the second DC terminal voltage reach certain value, catalyst KM1 adhesive short circuit current limitation resistance R1, the buffering that powers on completes.
In above-described embodiment two and embodiment three, it is also possible to catalyst KM1 replaces with relay or controllable silicon, the operation principle of the circuit after replacement is identical with embodiment two and embodiment three, does not repeat them here.
As shown in Figure 4, a kind of two-way DC/DC converting means disclosed in the embodiment of the present invention four, including: two-way DC/DC converter circuit 40；
Two-way DC/DC converter circuit 40 includes: two-way DC/DC changer 401 and buffer circuit 402；Wherein:
Two-way DC/DC changer 401 includes the first direct current anode, the first direct current negative terminal, the second direct current anode, the second direct current negative terminal, the first direct current negative terminal and the second direct current negative terminal and is connected and is connected with the first end of buffer circuit 402；
Second end of the first direct current anode and buffer circuit 402 connects the positive and negative end of the first DC voltage V1 respectively, and the second end of the second direct current anode and buffer circuit 402 is respectively used to connect the positive and negative end of the second DC voltage V2.
In the above-described embodiments; adopt a road buffer circuit 402; buffer circuit 402 is connected to the DC side at two-way DC/DC changer 401 two ends; the two ends of two-way DC/DC changer 40 can be powered on simultaneously play a protective role; need the use number adopting two-way buffer circuit to decrease device relative to prior art, reduce cost.
Concrete, in the above-described embodiments, the implementation of two-way DC/DC converter circuit can also adopt the mode as disclosed in Fig. 2 and Fig. 3, and specific works principle, with reference to the explanation of embodiment two and embodiment three, does not repeat them here.
It should be noted that, two-way DC/DC changer disclosed by the invention, is not limited to the road voltage raising and reducing formula translation circuit shown in Fig. 2 or three road voltage raising and reducing formula translation circuits shown in Fig. 3, two-way or multichannel voltage raising and reducing formula translation circuit can also be adopted, do not limit in the present invention.
If the function described in the present embodiment method is using the form realization of SFU software functional unit and as independent production marketing or use, it is possible to be stored in a computing equipment read/write memory medium.Based on such understanding, part or the part of this technical scheme that prior art is contributed by the embodiment of the present invention can embody with the form of software product, this software product is stored in a storage medium, including some instructions with so that a computing equipment (can be personal computer, server, mobile computing device or the network equipment etc.) perform all or part of step of method described in each embodiment of the present invention.And aforesaid storage medium includes: USB flash disk, portable hard drive, read only memory (ROM, Read-OnlyMemory), the various media that can store program code such as random access memory (RAM, RandomAccessMemory), magnetic disc or CD.
In this specification, each embodiment adopts the mode gone forward one by one to describe, and what each embodiment stressed is the difference with other embodiments, between each embodiment same or similar part mutually referring to.
Described above to the disclosed embodiments, makes professional and technical personnel in the field be capable of or uses the present invention.The multiple amendment of these embodiments be will be apparent from for those skilled in the art, and generic principles defined herein can without departing from the spirit or scope of the present invention, realize in other embodiments.Therefore, the present invention is not intended to be limited to the embodiments shown herein, and is to fit to the widest scope consistent with principles disclosed herein and features of novelty.
Claims (8)
1. a two-way DC/DC converter circuit, it is characterised in that including: two-way DC/DC changer and buffer circuit；Wherein:
Described two-way DC/DC changer includes the first direct current anode, the first direct current negative terminal, the second direct current anode, the second direct current negative terminal, and described first direct current negative terminal is connected with described second direct current negative terminal and is connected with the first end of buffer circuit；
Second end of described first direct current anode and described buffer circuit connects the positive and negative end of the first DC voltage respectively, and the second end of described second direct current anode and described buffer circuit is respectively used to connect the positive and negative end of the second DC voltage.
2. circuit according to claim 1, it is characterised in that described two-way DC/DC changer includes: an IGBT pipe, the 2nd IGBT pipe, the first diode, the second diode, the first electric capacity, the second electric capacity and inductance, wherein:
The colelctor electrode of a described IGBT pipe is connected with described first direct current anode, the emitter stage of the oneth IGBT pipe is connected with the colelctor electrode of described 2nd IGBT pipe, the emitter stage of the 2nd IGBT pipe is connected with described first direct current negative terminal and described second direct current negative terminal respectively, the anode of described second diode is connected with the emitter stage of described 2nd IGBT pipe, the negative electrode of described second diode is connected with the colelctor electrode of described 2nd IGBT pipe, the anode of described first diode is connected with the emitter stage of a described IGBT pipe, the negative electrode of described first diode is connected with the colelctor electrode of a described IGBT pipe；
The two ends of described first electric capacity are connected with described first direct current anode and described first direct current negative terminal respectively, and the two ends of described second electric capacity are connected with described second direct current anode and described second direct current negative terminal respectively；
One end of described inductance is connected with the emitter stage of a described IGBT pipe, and the other end of described inductance is connected with described second direct current anode.
3. circuit according to claim 1, it is characterized in that, described two-way DC/DC changer includes: an IGBT pipe, the 2nd IGBT pipe, the 3rd IGBT pipe, the 4th IGBT pipe, the 5th IGBT pipe, the 6th IGBT pipe, the first diode, the second diode, the 3rd diode, the 4th diode, the 5th diode, the 6th diode, the first electric capacity, the second electric capacity, the first inductance, the second inductance and the 3rd inductance, wherein:
The colelctor electrode of a described IGBT pipe is connected with described first direct current anode, and the emitter stage of an IGBT pipe is connected with the colelctor electrode of described 2nd IGBT pipe, and the emitter stage of the 2nd IGBT pipe is connected with described first direct current negative terminal and described second direct current negative terminal respectively；The anode of described first diode is connected with the emitter stage of a described IGBT pipe, and the negative electrode of described first diode is connected with the colelctor electrode of a described IGBT pipe；The anode of described second diode is connected with the emitter stage of described 2nd IGBT pipe, and the negative electrode of described second diode is connected with the colelctor electrode of described 2nd IGBT pipe；One end of described first inductance is connected with the emitter stage of a described IGBT pipe, and the other end of described first inductance is connected with described second direct current anode；
The two ends of described first electric capacity are connected with described first direct current anode and described first direct current negative terminal respectively, and the two ends of described second electric capacity are connected with described second direct current anode and described second direct current negative terminal respectively；
The colelctor electrode of described 3rd IGBT pipe is connected with described first direct current anode, and the emitter stage of the 3rd IGBT pipe is connected with the colelctor electrode of described 4th IGBT pipe, and the emitter stage of the 4th IGBT pipe is connected with described first direct current negative terminal and described second direct current negative terminal respectively；The anode of described 3rd diode is connected with the emitter stage of described 3rd IGBT pipe, and the negative electrode of described 3rd diode is connected with the colelctor electrode of described 3rd IGBT pipe；The anode of described 4th diode is connected with the emitter stage of described 4th IGBT pipe, and the negative electrode of described 4th diode is connected with the colelctor electrode of described 4th IGBT pipe；One end of described second inductance is connected with the emitter stage of described 3rd IGBT pipe, and the other end of described second inductance is connected with described second direct current anode；
The colelctor electrode of described 5th IGBT pipe is connected with described first direct current anode, and the emitter stage of the 5th IGBT pipe is connected with the colelctor electrode of described 6th IGBT pipe, and the emitter stage of the 6th IGBT pipe is connected with described first direct current negative terminal and described second direct current negative terminal respectively；The anode of described 5th diode is connected with the emitter stage of described 5th IGBT pipe, and the negative electrode of described 5th diode is connected with the colelctor electrode of described 5th IGBT pipe；The anode of described 6th diode is connected with the emitter stage of described 6th IGBT pipe, and the negative electrode of described 6th diode is connected with the colelctor electrode of described 6th IGBT pipe；One end of described 3rd inductance is connected with the emitter stage of described 5th IGBT pipe, and the other end of described 3rd inductance is connected with described second direct current anode.
4. the circuit according to claim 1,2 or 3, it is characterised in that described buffer circuit includes: gate-controlled switch and current-limiting resistance；Wherein said current-limiting resistance is connected in parallel on described gate-controlled switch two ends.
5. circuit according to claim 4, it is characterised in that described gate-controlled switch is catalyst.
6. circuit according to claim 4, it is characterised in that described gate-controlled switch is relay.
7. the circuit according to claim 4, it is characterised in that described gate-controlled switch is controllable silicon.
8. a two-way DC/DC converting means, it is characterised in that including: the two-way DC/DC converter circuit as according to any one of claim 1 to 7.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610330324.0A CN105811767A (en) | 2016-05-18 | 2016-05-18 | Bi-directional DC/DC converter circuit and bi-directional DC/DC conversion device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610330324.0A CN105811767A (en) | 2016-05-18 | 2016-05-18 | Bi-directional DC/DC converter circuit and bi-directional DC/DC conversion device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107222104A (en) * | 2017-06-01 | 2017-09-29 | 深圳市德利和能源技术有限公司 | Two-way DC DC converters and charger |
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| CN1334667A (en) * | 2000-06-20 | 2002-02-06 | 松下电器产业株式会社 | Communication system and method, radio communication system, radio microphone and receiver |
| WO2009118682A2 (en) * | 2008-03-24 | 2009-10-01 | Solaredge Technolgies Ltd. | Zero current switching |
| US20140226246A1 (en) * | 2011-08-04 | 2014-08-14 | Futurewei Technologies, Inc. | High Efficiency Power Regulator and Method |
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- 2016-05-18 CN CN201610330324.0A patent/CN105811767A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1334667A (en) * | 2000-06-20 | 2002-02-06 | 松下电器产业株式会社 | Communication system and method, radio communication system, radio microphone and receiver |
| WO2009118682A2 (en) * | 2008-03-24 | 2009-10-01 | Solaredge Technolgies Ltd. | Zero current switching |
| US20140226246A1 (en) * | 2011-08-04 | 2014-08-14 | Futurewei Technologies, Inc. | High Efficiency Power Regulator and Method |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107222104A (en) * | 2017-06-01 | 2017-09-29 | 深圳市德利和能源技术有限公司 | Two-way DC DC converters and charger |
| CN107222104B (en) * | 2017-06-01 | 2023-05-26 | 深圳市德利和能源技术有限公司 | Bidirectional DC-DC converter and charger |
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