CN208939854U - Mesohigh solid state motor soft starter three-phase controllable silicon passive drive isolation circuit - Google Patents
Mesohigh solid state motor soft starter three-phase controllable silicon passive drive isolation circuit Download PDFInfo
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- CN208939854U CN208939854U CN201821572282.2U CN201821572282U CN208939854U CN 208939854 U CN208939854 U CN 208939854U CN 201821572282 U CN201821572282 U CN 201821572282U CN 208939854 U CN208939854 U CN 208939854U
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- controllable silicon
- phase controllable
- silica gel
- silicon
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Abstract
The utility model discloses mesohigh solid state motor soft starter three-phase controllable silicon passive drive isolation circuits, it includes a soft starter mainboard, passive power source, three high pressure silica gel lines and several high-frequency isolation transformers, on soft starter mainboard there is three-phase controllable silicon to drive light signal output end, there is three-phase controllable silicon driving optical signal input and three-phase controllable silicon carrier signal output end in passive power source, every mutually silicon-controlled carrier signal output end connects a high pressure silica gel line, three high pressure silica gel lines are each passed through the magnet ring in several high-frequency isolation transformers, every high pressure silica gel line forms the primary coil of corresponding high-frequency isolation transformer, the secondary coil of each high-frequency isolation transformer is coupled out the driving signal as with primary, driving three-phase is controllable after the rectisorption circuit rectifies connecting with the high-frequency isolation transformer absorb Silicon.The utility model keeps the turn-on time height of each silicon-controlled output port consistent, and stability is improved.
Description
Technical field
The utility model relates to mesohigh solid state motor soft starter technical field more particularly to mesohigh solid state motor are soft
Starter three-phase controllable silicon passive drive isolation circuit.
Background technique
Soft starter is a kind of motor control assembly, collection electric machine soft starting, soft stop, light-load energy saving and a variety of protection function
It can Yu Yiti.
General mesohigh solid state motor soft starter is powered driving plate using isolating transformer, the disadvantage is that isolation
The synchronism of transformer is difficult to ensure that each isolating transformer service life is different, influences the power supply of driving plate, isolating transformer
Volume is big, and quality is big, and soft starter total quality increases therewith, causes soft starter volume also very big.
The utility model has carried out beneficial exploration and trial thus, has found result of the above problems, below will
The scheme to be introduced is generated under this background.
Utility model content
The technical problem to be solved by the utility model is to provide mesohigh with defect in view of the deficiencies of the prior art
Solid state motor soft starter three-phase controllable silicon passive drive isolation circuit.
The technical issues of the utility model is solved can be realized using following technical scheme:
Mesohigh solid state motor soft starter three-phase controllable silicon passive drive isolation circuit, which is characterized in that soft including one
Starter mainboard, a passive power source, three high pressure silica gel lines and several high-frequency isolation transformers have on the soft starter mainboard
There is three-phase controllable silicon to drive light signal output end, in the passive power source there is three-phase controllable silicon to drive optical signal input and three
Mutually silicon-controlled carrier signal output end, every mutually silicon-controlled carrier signal output end connect a high pressure silica gel line, three height
Pressure silica gel line is each passed through the magnet ring in several high-frequency isolation transformers, and every high pressure silica gel line forms corresponding high-frequency isolation and becomes
The primary coil of depressor, the secondary coil of each high-frequency isolation transformer be coupled out with it is primary as driving signal, by with
The rectisorption circuit rectifies of the high-frequency isolation transformer connection drive three-phase controllable silicon after absorbing.
In a preferred embodiment of the utility model, the passive power source includes switching power supply parts and power amplification
Circuit, the switching power supply parts are managed using SG3525 chip, and the input terminal and three-phase of the power amplification circuit can
Silicon driving optical signal input connection is controlled, the output end of power amplification circuit and the three-phase controllable silicon carrier signal output end connect
It connects.
Due to using technical solution as above, the utility model passive power source is integrated with switching power supply parts and power is put
Big circuit, switching power supply parts provide enough energy to power amplification circuit.Switching power supply parts use SG3525 core
Piece is managed, and has over-current over-voltage protection, and soft-start circuit is effectively reduced surge.Power amplification circuit is with 3 tunnels
Driving signal is received by fiber optic receiver in the form of light, and through light-coupled isolation to reduce interference, last carrier wave is sent, magnetic
The working principle of ring is single-ended counterattack.Cooperate dedicated driving plate to use, driving signal is restored and trigger it is silicon-controlled, to realize
The isolation drive of high pressure and low pressure.
After being compared with the prior art, beneficial effect includes that structure is more scientific and reasonable, which makes each controllable
The turn-on time of silicon maintains the consistent of height, and stability is improved, and reduces silicon-controlled failure rate, soft start body
Long-pending and quality is all reduced, and major loop is completely isolated using optical fiber with control loop, both ensure that and has been avoided strong power part electromagnetism
Interference, and the harm for avoiding high pressure from puncturing low-pressure section, fault point is reduced, so that reliability further increases, total quality
It is firm, long service life.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor
Under, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is a kind of structural schematic diagram of embodiment of the utility model.
Specific embodiment
In order to be easy to understand the technical means, creative features, achievement of purpose, and effectiveness of the utility model, under
The utility model is further described in face.
Mesohigh solid state motor soft starter three-phase controllable silicon passive drive isolation circuit as shown in Figure 1, including soft
Dynamic device mainboard 1,2, three high pressure silica gel lines 3 of passive power source and several high-frequency isolation transformers 4.
There is soft starter mainboard 1 three-phase controllable silicon to drive light signal output end TLA, TLB, TLC, have in passive power source 2
There are three-phase controllable silicon driving optical signal input TRA, TRB, TRC and three-phase controllable silicon carrier signal output terminals A, B, C, every phase can
Control silicon carrier signal output terminals A, B, C connect a high pressure silica gel line 3, three high pressure silica gel lines 3 be each passed through several high frequencies every
From the magnet ring in transformer 4, every high pressure silica gel line forms the primary coil of corresponding high-frequency isolation transformer, each high frequency every
Secondary coil from transformer is coupled out the driving signal as with primary, by the rectisorption circuit rectifies in passive power source
Three-phase controllable silicon is driven after absorption.
Passive power source 2 include switching power supply parts and power amplification circuit, switching power supply parts using SG3525 chip into
The input terminal of row management, power amplification circuit is connect with three-phase controllable silicon driving optical signal input TRA, TRB, TRC, and power is put
The output end of big circuit is connect with three-phase controllable silicon carrier signal output terminals A, B, C.
The basic principles and main features of the present invention and the advantages of the present invention have been shown and described above.Current row
The technical staff of industry is described in above embodiments and description it should be appreciated that the present utility model is not limited to the above embodiments
Only illustrate the principles of the present invention, on the premise of not departing from the spirit and scope of the utility model, the utility model is also
It will have various changes and improvements, these various changes and improvements fall within the scope of the claimed invention.The utility model
Claimed range is defined by the appending claims and its equivalent thereof.
Claims (2)
1. mesohigh solid state motor soft starter three-phase controllable silicon passive drive isolation circuit, which is characterized in that including one soft
Device mainboard, a passive power source, three high pressure silica gel lines and several high-frequency isolation transformers are moved, is had on the soft starter mainboard
Three-phase controllable silicon drives light signal output end, has three-phase controllable silicon driving optical signal input and three-phase in the passive power source
Silicon-controlled carrier signal output end, every mutually silicon-controlled carrier signal output end connect a high pressure silica gel line, three high pressures
Silica gel line is each passed through the magnet ring in several high-frequency isolation transformers, and every high pressure silica gel line forms corresponding high-frequency isolation transformation
The primary coil of device, the secondary coil of each high-frequency isolation transformer be coupled out with it is primary as driving signal, by with institute
Three-phase controllable silicon is driven after stating the rectisorption circuit rectifies absorption of high-frequency isolation transformer connection.
2. mesohigh solid state motor soft starter three-phase controllable silicon passive drive isolation circuit as described in claim 1, special
Sign is that the passive power source includes switching power supply parts and power amplification circuit, and the switching power supply parts use SG3525
Chip is managed, and the input terminal of the power amplification circuit is connect with three-phase controllable silicon driving optical signal input, and power is put
The output end of big circuit is connect with the three-phase controllable silicon carrier signal output end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821572282.2U CN208939854U (en) | 2018-09-26 | 2018-09-26 | Mesohigh solid state motor soft starter three-phase controllable silicon passive drive isolation circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821572282.2U CN208939854U (en) | 2018-09-26 | 2018-09-26 | Mesohigh solid state motor soft starter three-phase controllable silicon passive drive isolation circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208939854U true CN208939854U (en) | 2019-06-04 |
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ID=66722413
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821572282.2U Active CN208939854U (en) | 2018-09-26 | 2018-09-26 | Mesohigh solid state motor soft starter three-phase controllable silicon passive drive isolation circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208939854U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109286340A (en) * | 2018-09-26 | 2019-01-29 | 上海雷诺尔科技股份有限公司 | Mesohigh solid state motor soft starter three-phase controllable silicon passive drive isolation circuit |
-
2018
- 2018-09-26 CN CN201821572282.2U patent/CN208939854U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109286340A (en) * | 2018-09-26 | 2019-01-29 | 上海雷诺尔科技股份有限公司 | Mesohigh solid state motor soft starter three-phase controllable silicon passive drive isolation circuit |
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| GR01 | Patent grant | ||
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| CP02 | Change in the address of a patent holder |
Address after: 201800 Building 1, 188 Lane 3968, Chengbei Road, Jiading District, Shanghai Patentee after: SHANGHAI RENLE SCIENCE & TECHNOLOGY Co.,Ltd. Address before: 201800, 1, 3980 North Road, Shanghai, Jiading District Patentee before: SHANGHAI RENLE SCIENCE & TECHNOLOGY Co.,Ltd. |