CN204271894U - A kind of drive circuit - Google Patents
A kind of drive circuit Download PDFInfo
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- CN204271894U CN204271894U CN201420723534.2U CN201420723534U CN204271894U CN 204271894 U CN204271894 U CN 204271894U CN 201420723534 U CN201420723534 U CN 201420723534U CN 204271894 U CN204271894 U CN 204271894U
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Abstract
This application discloses a kind of drive circuit, for driving the pipe up and down in main circuit, this drive circuit comprises three-winding transformer, the first two-port network and the second two-port network, wherein: the two ends of the former limit winding of described three-winding transformer connect two outputs of driving power respectively, for receiving the two-way drive singal that described driving power exports; Described first two-port network comprises the first triode, the first resistance, the second resistance, the 3rd resistance and the first diode, for the drive end of the first vice-side winding and described upper pipe that connect described three-winding transformer; Described second two-port network comprises the second triode, the 4th resistance, the 5th resistance, the 6th resistance and the second diode, for the drive end of the second vice-side winding and described lower pipe that connect described three-winding transformer, with the driving problems of the bridge switching circuit or double tube positive exciting circuit that solve high input voltage.
Description
Technical field
The utility model relates to electric and electronic technical field, more particularly, relates to a kind of drive circuit.
Background technology
The voltage drive signals that traditional bridge switching circuit (as LLC circuit) or double tube positive exciting circuit directly utilize driving power to produce is to drive the pipe up and down in main circuit, but because the output voltage of driving power is limited, therefore the program cannot be applied in bridge switching circuit or the double tube positive exciting circuit of high input voltage.
For the LLC circuit shown in Fig. 1, this LLC circuit comprises main circuit and driving power, the upper pipe Q7 that wherein said main circuit comprises and lower pipe Q8, described driving power has two outputs, its first output J1 exports the first drive singal for driving upper pipe Q7, its second output J2 exports the second drive singal for driving lower pipe Q8, and want to drive pipe Q7 conducting, then the output voltage of the first drive singal must reach pipe source voltage and upper pipe threshold voltage sum.
But, for the LLC circuit of 480Vac input, its busbar voltage is up to 678V (namely go up pipe source voltage and equal 678V), and the maximum output voltage of existing driving power can only reach 600V usually, cannot solve the driving problems of the LLC circuit of high input voltage at all.
Utility model content
In view of this, the utility model provides a kind of drive circuit, with the driving problems of the bridge switching circuit or double tube positive exciting circuit that solve high input voltage.
A kind of drive circuit, for driving the pipe up and down in main circuit, described drive circuit comprises three-winding transformer, the first two-port network and the second two-port network, wherein:
The two ends of the former limit winding of described three-winding transformer connect two outputs of driving power respectively, for receiving the two-way drive singal that described driving power exports;
Described first two-port network comprises the first triode, the first resistance, the second resistance, the 3rd resistance and the first diode; The collector electrode of described first triode connects the first end of the first vice-side winding of described three-winding transformer through described first resistance, its emitter connects the second end of described first vice-side winding through described first diode, and its base stage connects the second end of described first vice-side winding through described second resistance; One end of described 3rd resistance connects the grid of described upper pipe and the collector electrode of described first triode respectively, and its other end connects the source electrode of described upper pipe and the emitter of described first triode respectively;
Described second two-port network comprises the second triode, the 4th resistance, the 5th resistance, the 6th resistance and the second diode; The collector electrode of described second triode connects the second end of the second vice-side winding of described three-winding transformer through described 4th resistance, its emitter connects the first end of described second vice-side winding through described second diode, and its base stage connects the first end of described second vice-side winding through described 5th resistance; One end of described 6th resistance connects the grid of described lower pipe and the collector electrode of described second triode respectively, and its other end connects the source electrode of described lower pipe and the emitter of described second triode respectively.
Wherein, described drive circuit is applied in bridge switching circuit.
Wherein, described bridge switching circuit is LLC circuit, and described drive circuit is for driving the pipe up and down in LLC main circuit;
The two ends of the former limit winding of described three-winding transformer are for receiving the drive singal of the two-way complementation of described driving power output;
The first end of the former limit winding of described three-winding transformer and the first end of its first vice-side winding each other Same Name of Ends, with the second end different name end each other of its second vice-side winding.
Wherein, described drive circuit is applied in double tube positive exciting circuit, for driving the pipe up and down in double tube positive exciting main circuit;
The two ends of the former limit winding of described three-winding transformer are for the identical drive singal of the two-way that receives described driving power and export;
The first end of the former limit winding of described three-winding transformer and the first end of its first vice-side winding each other Same Name of Ends, with the first end different name end each other of its second vice-side winding.
Alternatively, described drive circuit also comprises: the first push-pull circuit being connected to the first end of the former limit winding of described three-winding transformer, and is connected to second push-pull circuit of the second end of former limit winding of described three-winding transformer.
Alternatively, when described drive circuit is applied in double tube positive exciting circuit, the second end ground connection of the former limit winding of described three-winding transformer.
Alternatively, during the second end ground connection of the former limit winding of described three-winding transformer, described drive circuit also comprises: the push-pull circuit being connected to the first end of the former limit winding of described three-winding transformer.
Alternatively, described drive circuit also comprises: be serially connected in the capacitor on the winding of described former limit.
Alternatively, described first two-port network also comprises: the 3rd diode that anode connects the base stage of described first triode, negative electrode connects the first end of described first vice-side winding; Described second two-port network also comprises: the 4th diode that anode connects the base stage of described second triode, negative electrode connects the second end of described second vice-side winding.
Alternatively, described first two-port network also comprises: the 5th diode that anode connects the base stage of described first triode, negative electrode connects the second end of described first vice-side winding; Described second two-port network also comprises: the 6th diode that anode connects the base stage of described second triode, negative electrode connects the first end of described second vice-side winding.
Alternatively, described first two-port network also comprises: the first voltage-stabiliser tube of the grid of upper pipe described in the emitter of the first triode described in a termination, a termination; Described second two-port network also comprises: the second voltage-stabiliser tube of the grid of lower pipe described in the emitter of the second triode described in a termination, a termination.
As can be seen from above-mentioned technical scheme, the utility model passes through the former limit winding switching driving power of three-winding transformer, its first vice-side winding is connected to upper pipe by the first two-port network simultaneously, and its second vice-side winding is connected to lower pipe by the second two-port network, thus constitute the drive circuit of the pipe up and down in main circuit; Because the pipe up and down in driving power and main circuit is kept apart by three-winding transformer, when the induced voltage on the first vice-side winding reaches upper pipe threshold voltage, this induced voltage exports the drive end of upper pipe to through the first two-port network, pipe conducting can be driven, the size of this process and upper pipe source voltage has nothing to do, thus solves the bridge switching circuit of high input voltage or the driving problems of double tube positive exciting circuit.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiment of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to the accompanying drawing provided.
Fig. 1 is a kind of LLC electrical block diagram disclosed in prior art;
Fig. 2 is a kind of driving circuit structure schematic diagram disclosed in the utility model embodiment;
Fig. 3 is a kind of driving circuit structure schematic diagram be applied in LLC circuit disclosed in the utility model embodiment;
Fig. 4 is a kind of driving circuit structure schematic diagram be applied in double tube positive exciting circuit disclosed in the utility model embodiment;
Fig. 5 is that disclosed in the utility model embodiment, another is applied in the driving circuit structure schematic diagram in LLC circuit.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
See Fig. 2, the utility model embodiment discloses a kind of drive circuit, for driving upper pipe Q7 in main circuit and lower pipe Q8, with the driving problems of the bridge switching circuit or double tube positive exciting circuit that solve high input voltage, described drive circuit comprises three-winding transformer TX1, the first two-port network 10 and the second two-port network 20, wherein:
The two ends of the former limit winding P1 of three-winding transformer TX1 connect (comprising first end P1-1 and the second end P1-2) two outputs of driving power respectively, for receiving the two-way drive singal that described driving power exports;
First two-port network 10 comprises the first triode Q1, the first resistance R1, the second resistance R2, the 3rd resistance R3 and the first diode D1; The collector electrode of the first triode Q1 meets the first end S1-1 of the first vice-side winding S1 of three-winding transformer TX1 through the first resistance R1, its emitter meets the second end S1-2 of the first vice-side winding S1 through the first diode D1, and its base stage meets the second end S1-2 of the first vice-side winding S1 through the second resistance R2; One end of 3rd resistance R3 connects the grid of pipe Q7 and the collector electrode of the first triode D1 respectively, and its other end connects the source electrode of pipe Q7 and the emitter of the first triode D1 respectively;
Second two-port network 20 comprises the second triode Q2, the 4th resistance R4, the 5th resistance R5, the 6th resistance R6 and the second diode D2; The collector electrode of the second triode Q2 meets the second end S2-2 of the second vice-side winding S2 of three-winding transformer TX1 through the 4th resistance R4, its emitter meets the first end S2-1 of the second vice-side winding S2 through the second diode Q2, and its base stage meets the first end S2-1 of the second vice-side winding S2 through the 5th resistance R5; One end of 6th resistance R6 connects the source electrode of lower pipe Q8 and the collector electrode of the second triode Q2 respectively, and its other end connects the source electrode of lower pipe Q8 and the emitter of the second triode Q2 respectively.
Secondary has the transformer of two windings three-winding transformer, the present embodiment is by the former limit winding switching driving power of three-winding transformer TX1, two of three-winding transformer TX1 vice-side winding are connected the pipe up and down in main circuit respectively by two-port network, thus constitute the drive circuit of the pipe up and down in main circuit; Because driving power and pipe up and down can be kept apart by three-winding transformer TX1, when the induced voltage on its first vice-side winding S1 reaches upper pipe threshold voltage, this induced voltage exports the drive end of upper pipe to by the first two-port network 10, pipe conducting can be driven, the size of this process and upper pipe source voltage has nothing to do, thus solves the bridge switching circuit of high input voltage or the driving problems of double tube positive exciting circuit.
The Same Name of Ends of three-winding transformer TX1 is arranged according to the required on off operating mode met of pipe up and down in main circuit.Concrete, for bridge switching circuit and double tube positive exciting circuit, in the former main circuit, the pipe up and down of phase is opened and turns off complementation, need the drive singal of two-way complementation to drive, pipe up and down in the latter's main circuit is opened simultaneously or turns off simultaneously, the drive singal needing two-way identical drives, therefore when shown in Fig. 2, drive circuit is applied in bridge switching circuit, need to arrange the first end P1-1 of former limit winding P1 and the first end S1-1 Same Name of Ends each other of the first vice-side winding S1, with the second end S2-2 different name end (as shown in Figure 3) each other of the second vice-side winding S2, and when drive circuit shown in Fig. 2 is applied in double tube positive exciting circuit, the first end S1-1 needing to arrange the first end P1-1 of former limit winding P1 and the first vice-side winding S1 is Same Name of Ends, first end S2-1 different name end each other with the second vice-side winding S2 each other.
In addition, when drive circuit shown in Fig. 2 is applied in double tube positive exciting circuit, one of them drive singal that driving power produces can ground connection, such as, by making the second end P1-2 ground connection of former limit winding P1 realize.Wherein it should be noted that, the duty ratio of the drive singal required for described bridge switching circuit is 50%, and the duty ratio of drive singal required for double tube positive exciting circuit determines according to actual needs, differs and is decided to be 50%.
Wherein, described bridge switching circuit comprises LLC circuit, below for LLC circuit, describes in detail the operation principle that drive circuit shown in Fig. 2 is applied in bridge switching circuit.
For ease of describing, the driving power of LLC circuit, drive circuit, main circuit are designated as successively LLC driving power, the upper and lower tube drive circuit of LLC, LLC main circuit below.
Still see Fig. 3, described LLC driving power has two outputs, and its first output J1 exports the first drive singal for driving upper pipe Q7, and its second output J2 exports the second drive singal for driving lower pipe Q8.Its operation principle is as follows:
When described LLC driving power exports described first drive singal, the former limit winding P1 of three-winding transformer TX1 applies positive voltage, first vice-side winding S1 responds to positive voltage, the first resistance R1 in first two-port network 10, the 3rd resistance R3 and the first diode D1 formation opens loop, described induction positive voltage exports the drive end of upper pipe Q7 to through this loop, thus drives upper pipe Q7 conducting;
When described LLC driving power exports described second drive singal, the former limit winding P1 of three-winding transformer TX1 applies negative voltage, first vice-side winding S1 responds to negative voltage, the second resistance R2 in first two-port network 10, the PN junction of the first triode Q1, 3rd resistance R3 and the first resistance R1 forms path, and (induced current is through the second end S1-2 of the first vice-side winding S1, second resistance R2, the base stage of the first triode Q1, the emitter of the first triode Q1, 3rd resistance R3 and the first resistance R1 flows to the first end S1-1 of the first vice-side winding S1), now go up pipe Q7 to turn off fast due to the conducting of the first triode Q1, upper pipe Q7 closes and has no progeny, and the first vice-side winding S1 continues to utilize this path degaussing.
Second two-port network 20 is identical with the circuit structure of the first two-port network 10, but because the annexation of the second two-port network 20 and the second vice-side winding S2-2 there occurs change, therefore when described LLC driving power exports described first drive singal, the former limit winding P1 of three-winding transformer TX1 applies positive voltage, second vice-side winding S2 responds to positive voltage, and lower pipe Q8 ends; When described LLC driving power exports described second drive singal, the former limit winding P1 of three-winding transformer TX1 applies negative voltage, and the second vice-side winding S2 responds to negative voltage, lower pipe Q8 conducting.
From the description of the above-mentioned operation principle to drive circuit shown in Fig. 3, before the described drive circuit of introducing, the magnitude of voltage of described first drive singal need reach busbar voltage and upper pipe Q7 threshold voltage sum, could drive pipe Q7 conducting; And the first vice-side winding S1 both end voltage only need reach pipe Q7 threshold voltage in the present embodiment, can drive pipe Q7 conducting, this greatly reduces the requirement of the maximum output voltage to LLC driving power.
For the drive principle of double tube positive exciting circuit, similar with LLC circuit, but because the pipe up and down in the main circuit of double tube positive exciting circuit is opened or turns off simultaneously simultaneously, therefore only the Same Name of Ends of the second vice-side winding S2 and different name end position need be exchanged, simultaneously also can by the direct ground connection of the second end P2-2 of former limit winding P1 (as shown in Figure 4, be connected to the drive circuit between driving power and double tube positive exciting main circuit, for driving upper pipe Q7 in main circuit and lower pipe Q8).
As preferably, see Fig. 5, the upper and lower tube drive circuit of described LLC also comprises: be serially connected in the capacitor C1 on former limit winding P1.When the first drive singal that described LLC driving power exports and the second drive singal duty ratio not etc. time, three-winding transformer TX1 there will be bias phenomenon, can eliminate magnetic bias by increase capacitor C1.
As preferably, still see Fig. 5, the first two-port network 10 also comprises: the 3rd diode D3 that anode connects the base stage of the first triode Q1, negative electrode meets the first end S1-1 of the first vice-side winding S1.Second two-port network 20 also comprises: the 4th diode D4 that anode connects the base stage of the second triode Q2, negative electrode meets the second end S2-2 of the second vice-side winding S2.
After the parasitic capacitance discharge of upper pipe Q7 completes, first resistance R2 and the 3rd diode D3 forms a loop and resets to the first vice-side winding S1, to prevent the path be made up of the PN junction of the second resistance R2 in the first two-port network 10, the first triode Q1, the 3rd resistance R3 and the first resistance R1 from working always, thus reduce the loss of the first triode Q1.In like manner, the 4th diode D4 is for reducing the loss of the second triode Q2.This preferred version is equally applicable to be applied in the drive circuit in described double tube positive exciting circuit.
As preferably, still see Fig. 5, the first two-port network 10 also comprises: the 5th diode D5 that anode connects the base stage of the first triode Q1, negative electrode meets the second end S1-2 of the first vice-side winding S1.Second two-port network 20 also comprises: the 6th diode D6 that anode connects the base stage of the second triode Q2, negative electrode meets the first end S1-1 of the second vice-side winding S2.After setting up for preventing the driving of main circuit, upper pipe Q7 or lower pipe Q8 misleads, and the present embodiment increases the 5th diode D5 and the 6th diode D6 to play a protective role.This preferred version is equally applicable to be applied in the drive circuit in described double tube positive exciting circuit.
As preferably, still see Fig. 5, the first two-port network 10 also comprises: the emitter of a termination first triode Q1, one end connect the first voltage-stabiliser tube D11 of the grid of pipe Q7, to play a protective role to upper pipe Q7.Second two-port network 20 also comprises: the second voltage-stabiliser tube D12 of the grid of pipe Q8 under the emitter of a termination second triode Q2, a termination, to play a protective role to lower pipe Q8.
As preferably, still see Fig. 5, the upper and lower tube drive circuit of LLC 10 also comprises: the first push-pull circuit 30 being connected to the first end P1-1 of former limit winding P1, to strengthen the driving force of the first drive singal that described LLC driving power exports, and be connected to second push-pull circuit 40 of the second end P1-2 of former limit winding P1, to strengthen the driving force of the second drive singal that described LLC driving power exports.
The topological structure of the first push-pull circuit 30 and the second push-pull circuit 40 does not limit to, and only provides a kind of example wherein below, and e.g., the first push-pull circuit 30 comprises: the 3rd triode Q3, the 4th triode Q4 and the 7th resistance R7; Concrete, the 3rd triode Q3 and the 4th triode Q4 common base, and this base stage is connected with the first output J1 of described LLC driving power; The emitter of the 3rd triode Q3 connects the collector electrode of the 4th triode Q4, and its tie point meets the first end P1-1 of former limit winding P1; The collector electrode of the 3rd triode Q3 meets power supply VCC through the 7th resistance R7; The grounded emitter of the 4th triode Q4.Second push-pull circuit 60 comprises the 5th triode Q5, the 6th triode Q6 and the 8th resistance R8, and the second push-pull circuit 60 has identical topological structure with the first push-pull circuit 50, repeats no more herein.
This preferred version is equally applicable to be applied in the drive circuit in described double tube positive exciting circuit.Wherein it should be noted that, the second end P1-2 of the former limit winding P1 of three-winding transformer TX1 also can direct ground connection, now only need a push-pull circuit, that is, the drive circuit in described double tube positive exciting circuit also comprises: the push-pull circuit being connected to the first end P1-1 of former limit winding P1.
In sum, the utility model passes through the former limit winding switching driving power of three-winding transformer, its first vice-side winding is connected to upper pipe by the first two-port network simultaneously, and its second vice-side winding is connected to lower pipe by the second two-port network, thus constitute the drive circuit of the pipe up and down in main circuit; Because the pipe up and down in driving power and main circuit is kept apart by three-winding transformer, when the induced voltage on the first vice-side winding reaches upper pipe threshold voltage, this induced voltage exports the drive end of upper pipe to through the first two-port network, pipe conducting can be driven, the size of this process and upper pipe source voltage has nothing to do, thus solves the bridge switching circuit of high input voltage or the driving problems of double tube positive exciting circuit.
In this specification, each embodiment adopts the mode of going forward one by one to describe, and what each embodiment stressed is the difference with other embodiments, between each embodiment identical similar portion mutually see.
To the above-mentioned explanation of the disclosed embodiments, professional and technical personnel in the field are realized or uses the utility model.To be apparent for those skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein when not departing from spirit or scope of the present utility model, can realize in other embodiments.Therefore, the utility model can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (11)
1. a drive circuit, for driving the pipe up and down in main circuit, is characterized in that, described drive circuit comprises three-winding transformer, the first two-port network and the second two-port network, wherein:
The two ends of the former limit winding of described three-winding transformer connect two outputs of driving power respectively, for receiving the two-way drive singal that described driving power exports;
Described first two-port network comprises the first triode, the first resistance, the second resistance, the 3rd resistance and the first diode; The collector electrode of described first triode connects the first end of the first vice-side winding of described three-winding transformer through described first resistance, its emitter connects the second end of described first vice-side winding through described first diode, and its base stage connects the second end of described first vice-side winding through described second resistance; One end of described 3rd resistance connects the grid of described upper pipe and the collector electrode of described first triode respectively, and its other end connects the source electrode of described upper pipe and the emitter of described first triode respectively;
Described second two-port network comprises the second triode, the 4th resistance, the 5th resistance, the 6th resistance and the second diode; The collector electrode of described second triode connects the second end of the second vice-side winding of described three-winding transformer through described 4th resistance, its emitter connects the first end of described second vice-side winding through described second diode, and its base stage connects the first end of described second vice-side winding through described 5th resistance; One end of described 6th resistance connects the grid of described lower pipe and the collector electrode of described second triode respectively, and its other end connects the source electrode of described lower pipe and the emitter of described second triode respectively.
2. drive circuit according to claim 1, is characterized in that, described drive circuit is applied in bridge switching circuit.
3. drive circuit according to claim 2, is characterized in that:
Described bridge switching circuit is LLC circuit, and described drive circuit is for driving the pipe up and down in LLC main circuit;
The two ends of the former limit winding of described three-winding transformer are for receiving the drive singal of the two-way complementation of described driving power output;
The first end of the former limit winding of described three-winding transformer and the first end of its first vice-side winding each other Same Name of Ends, with the second end different name end each other of its second vice-side winding.
4. drive circuit according to claim 1, is characterized in that:
Described drive circuit is applied in double tube positive exciting circuit, for driving the pipe up and down in double tube positive exciting main circuit;
The two ends of the former limit winding of described three-winding transformer are for the identical drive singal of the two-way that receives described driving power and export;
The first end of the former limit winding of described three-winding transformer and the first end of its first vice-side winding each other Same Name of Ends, with the first end different name end each other of its second vice-side winding.
5. drive circuit according to claim 4, is characterized in that, the second end ground connection of the former limit winding of described three-winding transformer.
6. the drive circuit according to claim 3 or 4, it is characterized in that, described drive circuit also comprises: the first push-pull circuit being connected to the first end of the former limit winding of described three-winding transformer, and is connected to second push-pull circuit of the second end of former limit winding of described three-winding transformer.
7. drive circuit according to claim 5, is characterized in that, described drive circuit also comprises: the push-pull circuit being connected to the first end of the former limit winding of described three-winding transformer.
8. the drive circuit according to any one of claim 2-5, is characterized in that, described drive circuit also comprises: be serially connected in the capacitor on the winding of described former limit.
9. the drive circuit according to any one of claim 2-5, is characterized in that, described first two-port network also comprises: the 3rd diode that anode connects the base stage of described first triode, negative electrode connects the first end of described first vice-side winding; Described second two-port network also comprises: the 4th diode that anode connects the base stage of described second triode, negative electrode connects the second end of described second vice-side winding.
10. the drive circuit according to any one of claim 2-5, is characterized in that, described first two-port network also comprises: the 5th diode that anode connects the base stage of described first triode, negative electrode connects the second end of described first vice-side winding; Described second two-port network also comprises: the 6th diode that anode connects the base stage of described second triode, negative electrode connects the first end of described second vice-side winding.
11. drive circuits according to any one of claim 2-5, it is characterized in that, described first two-port network also comprises: the first voltage-stabiliser tube of the grid of upper pipe described in the emitter of the first triode described in a termination, a termination; Described second two-port network also comprises: the second voltage-stabiliser tube of the grid of lower pipe described in the emitter of the second triode described in a termination, a termination.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420723534.2U CN204271894U (en) | 2014-11-26 | 2014-11-26 | A kind of drive circuit |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201420723534.2U CN204271894U (en) | 2014-11-26 | 2014-11-26 | A kind of drive circuit |
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| CN204271894U true CN204271894U (en) | 2015-04-15 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105024530A (en) * | 2015-08-07 | 2015-11-04 | 姚晓武 | Full-bridge soft switching MOS drive circuit |
| CN107124090A (en) * | 2017-05-27 | 2017-09-01 | 深圳航天科技创新研究院 | Applied to the fast drive circuit in high-pressure solid-state switch, high-pressure solid-state switch |
| CN107707125A (en) * | 2017-10-20 | 2018-02-16 | 四川莱福德科技有限公司 | Drive circuit and bridge-type resonance circuit |
| CN109586561A (en) * | 2018-10-30 | 2019-04-05 | 上海沪工焊接集团股份有限公司 | A kind of two-tube driving circuit and its control method |
-
2014
- 2014-11-26 CN CN201420723534.2U patent/CN204271894U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105024530A (en) * | 2015-08-07 | 2015-11-04 | 姚晓武 | Full-bridge soft switching MOS drive circuit |
| CN107124090A (en) * | 2017-05-27 | 2017-09-01 | 深圳航天科技创新研究院 | Applied to the fast drive circuit in high-pressure solid-state switch, high-pressure solid-state switch |
| CN107124090B (en) * | 2017-05-27 | 2020-03-20 | 深圳航天科技创新研究院 | Fast driving circuit applied to high-voltage solid-state switch and high-voltage solid-state switch |
| CN107707125A (en) * | 2017-10-20 | 2018-02-16 | 四川莱福德科技有限公司 | Drive circuit and bridge-type resonance circuit |
| CN109586561A (en) * | 2018-10-30 | 2019-04-05 | 上海沪工焊接集团股份有限公司 | A kind of two-tube driving circuit and its control method |
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