CN108807306B - Power module structure with input protection - Google Patents
Power module structure with input protection Download PDFInfo
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- CN108807306B CN108807306B CN201810708184.5A CN201810708184A CN108807306B CN 108807306 B CN108807306 B CN 108807306B CN 201810708184 A CN201810708184 A CN 201810708184A CN 108807306 B CN108807306 B CN 108807306B
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- power module
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- 238000003466 welding Methods 0.000 claims description 34
- 208000004067 Flatfoot Diseases 0.000 claims description 3
- 238000004806 packaging method and process Methods 0.000 abstract description 4
- 239000004065 semiconductor Substances 0.000 abstract description 2
- 238000005538 encapsulation Methods 0.000 abstract 1
- 230000010354 integration Effects 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 description 9
- 230000001052 transient effect Effects 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000017525 heat dissipation Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 241000272168 Laridae Species 0.000 description 2
- 230000002457 bidirectional effect Effects 0.000 description 2
- 238000003475 lamination Methods 0.000 description 2
- 230000001629 suppression Effects 0.000 description 2
- 208000025274 Lightning injury Diseases 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000012858 packaging process Methods 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L23/00—Details of semiconductor or other solid state devices
- H01L23/28—Encapsulations, e.g. encapsulating layers, coatings, e.g. for protection
- H01L23/31—Encapsulations, e.g. encapsulating layers, coatings, e.g. for protection characterised by the arrangement or shape
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L23/00—Details of semiconductor or other solid state devices
- H01L23/48—Arrangements for conducting electric current to or from the solid state body in operation, e.g. leads, terminal arrangements ; Selection of materials therefor
- H01L23/488—Arrangements for conducting electric current to or from the solid state body in operation, e.g. leads, terminal arrangements ; Selection of materials therefor consisting of soldered or bonded constructions
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L23/00—Details of semiconductor or other solid state devices
- H01L23/48—Arrangements for conducting electric current to or from the solid state body in operation, e.g. leads, terminal arrangements ; Selection of materials therefor
- H01L23/488—Arrangements for conducting electric current to or from the solid state body in operation, e.g. leads, terminal arrangements ; Selection of materials therefor consisting of soldered or bonded constructions
- H01L23/495—Lead-frames or other flat leads
- H01L23/49537—Plurality of lead frames mounted in one device
-
- 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
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/003—Constructional details, e.g. physical layout, assembly, wiring or busbar connections
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
- H01L2224/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
- H01L2224/34—Strap connectors, e.g. copper straps for grounding power devices; Manufacturing methods related thereto
- H01L2224/39—Structure, shape, material or disposition of the strap connectors after the connecting process
- H01L2224/40—Structure, shape, material or disposition of the strap connectors after the connecting process of an individual strap connector
- H01L2224/401—Disposition
- H01L2224/40151—Connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive
- H01L2224/40221—Connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive the body and the item being stacked
- H01L2224/40245—Connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive the body and the item being stacked the item being metallic
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
- H01L2924/15—Details of package parts other than the semiconductor or other solid state devices to be connected
- H01L2924/181—Encapsulation
Abstract
The utility model provides a power supply power module structure with input protection, which belongs to the field of semiconductor components and comprises four rectifying chips, an overvoltage protection chip, two input terminals, two output terminals and a plastic package body, and is characterized by further comprising a first frame unit, a second frame unit and a third frame unit which are arranged oppositely in sequence, wherein the four rectifying chips are arranged between the first frame unit and the second frame unit, the overvoltage protection chip is arranged between the second frame unit and the third frame unit to form a laminated structure, the two input terminals are led out from the second frame unit, and the two output terminals are led out from the first frame unit; adopt the stacked structure to carry out the body encapsulation with four rectification chips and overvoltage protection chip, form four rectification chips tiling and with the structure of overvoltage protection chip vertical integration, packaging structure space layout is more reasonable, and the product occupies little planar space on the PCB board, has solved the space utilization problem on the PCB board.
Description
Technical Field
The utility model relates to the field of semiconductor components, in particular to a power module structure with input protection.
Background
Along with the development of society, electronic products are more and more precise, and the requirements of the electronic products on power supplies are also more and more high. When the existing alternating current power grid is subjected to factors such as lightning stroke, power equipment start-stop and the like, instantaneous interference can be generated in the power grid, and the interference can damage electronic equipment and circuits. Many electronic components using direct current are used in electronic products, so that electronic components such as a rectifier bridge and the like with a rectification voltage stabilizing structure, which are required to be added with alternating current to direct current before being connected into a power grid, are used for protecting other electronic components. The existing transient suppression diode has extremely fast response time (nanosecond level) and quite high surge absorption capacity, and can protect the following circuit elements from being impacted by transient high-voltage spike pulses. The transient suppression diode is generally arranged on the power input or output module and is responsible for protecting all components in the whole circuit, but the TVS tube is independently welded in the circuit board, so that the cost is high, the occupied space is small, and the miniaturization of electronic products is not facilitated.
Aiming at the problem, the utility model patent with the application number of 201621042098.8 discloses an ultrathin rectifier bridge for filtering transient high-voltage pulses, which comprises a plastic package body, four diode chips with the same technical index, a bidirectional TVS tube chip and four lead frames; the bidirectional TVS chip is fixedly arranged on the first lead frame and is connected with the third lead frame through a wire; wherein, two diode chips are fixedly arranged on the second lead frame, the top surfaces are both P-shaped, and the two diode chips are respectively connected with the first lead frame and the third lead frame through leads; the other two diode chips are fixedly arranged on the fourth lead frame, the top surfaces of the diode chips are both N-shaped, and the diode chips are respectively connected with the first lead frame and the third lead frame through leads; the first and third lead frames are used as AC pins, and the second and fourth lead frames are used as positive and negative pins, respectively. The structure adopts the mode of overlapping four leads to carry out welding wire arrangement, has compact rectifier bridge layout, and is beneficial to the miniaturization development of the PCB.
Although the structure solves the problem that the space occupied by independently welding the TVS diode on the circuit board is large to a certain extent, the structure also has the following problems: the wire bonding process has the limitations, the production efficiency is relatively low, the production conditions are harsh, and the phenomenon of wire bonding collapse easily occurs in the plastic packaging process of the adopted lead wire, so that the yield of the product is low, and the quality of the product is influenced; the adopted lead is generally copper wire, and in order to meet the packaging requirement, the fineness requirement of the adopted copper wire is extremely high, the product cost is increased, the wire-bonding operation is troublesome, the wire-bonding speed is low, and the production efficiency is affected; in addition, the chip of TVS diode and rectifier bridge is in the same place with tiling welding to this structure adoption bonding wire technology, and structural layout is unreasonable enough, and occupation plane space is great on the PCB board, has not only restricted the microminiaturization development of rectifier bridge, and this kind of structure has directly led to the quantity of the rectifier bridge that every group frame can encapsulate in its processing procedure in-process moreover, influences the production efficiency of product.
Disclosure of Invention
In order to solve the problems, the utility model provides a power supply power module structure with input protection, which adopts a laminated structure to package a rectifier bridge and an overvoltage protection chip together, has more reasonable space layout, occupies small plane space on a PCB, is beneficial to microminiaturization development of the rectifier bridge product and expands the application universality of the rectifier bridge product; meanwhile, the design among the brackets adopted in the space layout structure is more reasonable, so that the number of rectifier bridges which can be packaged by a single group of frames is increased, the production efficiency is greatly improved, and the cost is reduced; in addition, the structure is more stable, and the phenomenon of low product yield caused by collapse of welding lines can be avoided.
The utility model adopts the technical proposal for solving the technical problems that: the power supply power module structure with the input protection comprises four rectifying chips, an overvoltage protection chip, two input terminals, two output terminals and a plastic package body, wherein the overvoltage protection chip can adopt, but is not limited to, a TVS chip and a piezoresistor chip;
the first frame unit comprises two flat welding discs and two welding discs with convex points, the two flat welding discs are connected, the two welding discs with the convex points are connected, and the cathodes of the two rectifying chips are respectively connected with the two flat welding discs of the first frame unit; the second frame unit comprises two flat welding discs facing the first frame unit and two welding discs with convex points, each flat welding disc facing the first frame unit of the second frame unit is correspondingly connected with one welding disc with convex points of the second frame unit to form a welding disc connector, and the cathodes of the other two rectifying chips are respectively connected with the two flat welding discs of the second frame unit; the two bonding pads with the salient points on the first frame unit are respectively connected with the anodes of the rectifying chips arranged on the two flat bonding pads on the second frame unit, and the bonding pads with the salient points on the second frame unit are respectively connected with the anodes of the rectifying chips arranged on the two flat bonding pads on the first frame unit;
the second frame unit further comprises a flat bonding pad facing the third frame unit, the flat bonding pad facing the third frame unit on the second frame unit is arranged on one bonding pad connector, and the overvoltage protection chip is arranged on the flat bonding pad facing the third frame unit on the second frame unit and is connected with the other bonding pad connector through the third frame unit;
two input terminals are led out from the second frame unit, wherein one input terminal is led out from one side of one bonding pad connector, which is close to the flat bonding pad, and the other input terminal is led out from one side of the other bonding pad connector, which is close to the flat bonding pad; two output terminals are led out from the first frame unit, wherein one output terminal is led out from one side of the first frame unit where two flat bonding pads are connected, and the other output terminal is led out from one side of the first frame unit where two bonding pads with bumps are connected.
Furthermore, the input terminal and the output terminal can extend out of the bottom of the plastic package body to form a flat foot structure; in addition, the input terminal and the output terminal can also extend out from the middle of the plastic package body and be bent outwards to form a gull foot structure.
Further, the input terminal and the output terminal are coplanar.
Further, the third frame unit is configured as a jump piece, one end of the jump piece is connected with the overvoltage protection chip on one bonding pad connector, and the other end of the jump piece is connected with the other bonding pad connector.
The utility model has the beneficial effects that the four rectifying chips and the overvoltage protection chip are packaged in the same body by adopting the laminated structure, so that the structure that the four rectifying chips are tiled and vertically integrated with the overvoltage protection chip is formed, the space layout of the packaging structure is more reasonable, the space occupied by the product on the PCB is small, the problem of space utilization rate on the PCB is solved, the miniaturization development of the rectifying bridge product is facilitated, and the application universality of the rectifying bridge product is enlarged; five chips are packaged and connected by adopting three-layer frame units, the occupied planar space is small, and the density of products borne by a single group of lead frames is improved, so that the number of rectifier bridge components which can be packaged by the single group of frames is increased, the production efficiency is greatly improved, and the production cost is effectively reduced; the cooperation of three-layer frame unit and five chips forms specific three-dimensional space in the plastic envelope body, and is rationally distributed, not only does benefit to the heat dissipation of product, avoids the influence of lamination to the product electrical property, and product structure is more stable moreover, can avoid the phenomenon that the bonding wire collapses the product yield that causes low.
Drawings
FIG. 1 is a schematic diagram of a front view of an embodiment of the present utility model;
FIG. 2 is a schematic top view of an embodiment of the present utility model;
FIG. 3 is a schematic left-hand view of an embodiment of the present utility model;
FIG. 4 is a right side view of an embodiment of the present utility model;
FIG. 5 is a schematic view illustrating an internal perspective structure of a molding compound according to an embodiment of the present utility model;
FIG. 6 is a schematic diagram of a structure of four rectifying chips and first and second frame units according to an embodiment of the present utility model;
FIG. 7 is a schematic top view of a first frame unit according to an embodiment of the present utility model;
FIG. 8 is a left side schematic view of FIG. 7;
FIG. 9 is a schematic top view of a second frame unit according to an embodiment of the present utility model;
FIG. 10 is a left side schematic view of FIG. 9;
FIG. 11 is a schematic side view of another embodiment of the present utility model;
fig. 12 is a schematic diagram of the internal chip circuit connection of the present utility model.
In the figure: 1. the device comprises a first frame unit, a second frame unit, a third frame unit, a rectifying chip, an overvoltage protection chip, an input terminal, an output terminal, a flat welding disc, a welding disc with a convex point, a plastic package body and a welding disc connector.
Detailed Description
The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.
As shown in fig. 1 to 10, the power module structure of the power supply of an embodiment of the present utility model includes four rectifying chips 4, an overvoltage protection chip 5, two input terminals 6, two output terminals 7 and a plastic package 10, where the overvoltage protection chip 5 may be, but is not limited to, a TVS chip and a varistor chip, and the power module structure further includes a first frame unit 1, a second frame unit 2 and a third frame unit 3 that are sequentially and oppositely arranged, where the arrangement directions of the three may be, but are not limited to, a vertical direction shown in the drawing, and the vertical direction shown in the drawing is specifically determined according to a spatial angle of the power module in practical use, and is an arrangement direction when the power module is used for a PCB board on a horizontal plane;
four rectifying chips 4 are arranged between the first frame unit 1 and the second frame unit 2, and an overvoltage protection chip 5 is arranged between the second frame unit 2 and the third frame unit 3 to form a laminated structure;
the laminated structure specifically comprises: the first frame unit 1 comprises two flat bonding pads 8 and two bonding pads 9 with convex points, the two flat bonding pads 8 are connected, the two bonding pads 9 with convex points are connected, and the cathodes of the two rectifying chips 4 are respectively connected with the two flat bonding pads 8 of the first frame unit 1; the second frame unit 2 comprises two flat bonding pads 8 facing the first frame unit 1 and two bonding pads 9 with bumps, each flat bonding pad 8 of the second frame unit 2 facing the first frame unit 1 is correspondingly connected with one bonding pad 9 with bumps of the second frame unit 2 to form a bonding pad connector 11, and the cathodes of the other two rectifying chips 4 are respectively connected with the two flat bonding pads 8 of the second frame unit 2; the two bonding pads 9 with the convex points on the first frame unit 1 are respectively connected with the anodes of the rectifying chips 4 arranged on the two flat bonding pads 8 on the second frame unit 2, and the bonding pads 9 with the convex points on the second frame unit 2 are respectively connected with the anodes of the rectifying chips 4 arranged on the two flat bonding pads 8 on the first frame unit 1; the second frame unit 2 further comprises a flat bonding pad 8 facing the third frame unit 3, the flat bonding pad 8 facing the third frame unit 3 on the second frame unit 2 is arranged on a bonding pad connector 11, and the overvoltage protection chip 5 is arranged on the flat bonding pad 8 facing the third frame unit 3 on the second frame unit 2 and is connected with the other bonding pad connector 11 through the third frame unit 3; in this embodiment, the third frame unit 3 is configured as a jump piece, one end of the jump piece is connected to the overvoltage protection chip 5 on one pad connector 11, and the other end of the jump piece is connected to the other pad connector 11;
in the formed laminated structure, four rectifying chips are respectively connected with protruding points at different positions on the first frame unit 1 and the second frame unit 2, and are mutually matched in the formed space structure to form a certain staggered space, so that the heat dissipation performance of the product is improved; the five chips in this embodiment may be connected to the frame unit or the jump chip by solder paste.
Two input terminals 6 are led out from the second frame unit 2, specifically, one input terminal 6 is led out from a side of one pad connecting body 11 near the flat pad 8, and the other input terminal 6 is led out from a side of the other pad connecting body 11 near the flat pad 8;
two output terminals 7 are led out from the first frame unit 1, specifically, one output terminal 7 is led out from the side of the first frame unit 1 where two flat pads 8 are connected, and the other output terminal 7 is led out from the side of the first frame unit 1 where two bumped pads 9 are connected; and the input terminal 6 and the output terminal 7 are coplanar.
The input terminal 6 and the output terminal 7 of the embodiment extend out from the middle of the plastic package body 10, then are bent outwards and extend outwards to form a gull foot structure; the portions where the input terminals 6 and the output terminals 7 extend outward may be flush with the top surface of the plastic package 10 near the first frame unit 1, as shown in fig. 3 and 4; or it may be flush with the top surface of the plastic package body 10 near the third frame unit 3, that is, the bending direction of the four terminals is opposite to the direction shown in fig. 3 and 4.
As shown in fig. 11, in another embodiment of the present utility model, the input terminal 6 and the output terminal 6 are parallel to the planes of the first frame unit 1 and the second frame unit 2, and the input terminal 6 and the output terminal 7 extend out from the bottom of the plastic package 10 to form a flat-foot structure; here, the bottom of the plastic package 10 may be the top surface of the plastic package 10 near the first frame unit 1 as shown in fig. 11, or may be the top surface of the plastic package 10 near the third frame unit 3 as the bottom thereof, contrary to the top surface as shown in fig. 11.
According to the utility model, the four rectifying chips and the overvoltage protection chip are packaged in the same body by adopting the laminated structure, so that a structure that the four rectifying chips are tiled and vertically integrated with the overvoltage protection chip is formed, the space layout of the packaging structure is more reasonable, the space occupied by the product on the PCB is small, the problem of space utilization rate on the PCB is solved, the miniaturization development of the rectifying bridge product is facilitated, and the application universality of the rectifying bridge product is enlarged; five chips are packaged and connected by adopting three-layer frame units, the occupied planar space is small, and the density of products borne by a single group of lead frames is improved, so that the number of rectifier bridge components which can be packaged by the single group of frames is increased, the production efficiency is improved by 30% -50% compared with the prior art, and the production cost is effectively reduced; the cooperation of three-layer frame unit and five chips forms specific three-dimensional space in the plastic envelope body, and is rationally distributed, not only does benefit to the heat dissipation of product, avoids the influence of lamination to the product electrical property, and product structure is more stable moreover, can avoid the phenomenon that the bonding wire collapses the product yield that causes low.
Claims (7)
1. The utility model provides a take input protection's power module structure, including four rectification chips (4), an overvoltage protection chip (5), two input terminal (6), two output terminal (7) and plastic envelope body (10), its characterized in that still includes first frame unit (1), second frame unit (2) and third frame unit (3) that set up relatively in proper order, and four rectification chips (4) set up between first frame unit (1) and second frame unit (2), and overvoltage protection chip (5) set up between second frame unit (2) and third frame unit (3) form the stromatolite structure;
the first frame unit (1) comprises two flat welding discs (8), two welding discs (9) with convex points, the two flat welding discs (8) are connected, the two welding discs (9) with convex points are connected, and the cathodes of the two rectifying chips (4) are respectively connected with the two flat welding discs (8) of the first frame unit (1); the second frame unit (2) comprises two flat welding discs (8) facing the first frame unit (1) and two welding discs (9) with convex points, each flat welding disc (8) of the second frame unit (2) facing the first frame unit (1) is correspondingly connected with one welding disc (9) with the convex point of the second frame unit (2) to form a welding disc connector (11), and the cathodes of the other two rectifying chips (4) are respectively connected with the two flat welding discs (8) of the second frame unit (2); two bonding pads (9) with salient points on the first frame unit (1) are respectively connected with the positive poles of the rectifying chips (4) arranged on the two flat bonding pads (8) on the second frame unit (2), and the bonding pads (9) with salient points on the second frame unit (2) are respectively connected with the positive poles of the rectifying chips (4) arranged on the two flat bonding pads (8) on the first frame unit (1);
the second frame unit (2) further comprises a flat welding disc (8) facing the third frame unit (3), the flat welding disc (8) facing the third frame unit (3) on the second frame unit (2) is arranged on a welding disc connecting body (11), and the overvoltage protection chip (5) is arranged on the flat welding disc (8) facing the third frame unit (3) on the second frame unit (2) and is connected with the other welding disc connecting body (11) through the third frame unit (3);
two input terminals (6) lead from the second frame unit (2), and two output terminals (7) lead from the first frame unit (1).
2. The power module structure with input protection according to claim 1, wherein the input terminal (6) and the output terminal (7) extend straight from the bottom of the plastic package body (10) to form a flat foot structure.
3. The power module structure with input protection according to claim 1, wherein the input terminal (6) and the output terminal (7) extend from the middle of the plastic package body (10) and are bent outwards to form a gull-leg structure.
4. The power module structure with input protection according to claim 1, characterized in that one input terminal (6) is led out from a side of one pad connector (11) close to the flat pad (8), and the other input terminal (6) is led out from a side of the other pad connector (11) close to the flat pad (8).
5. The power module structure with input protection according to claim 1, characterized in that one output terminal (7) is led out from the side of the first frame unit (1) where two flat pads (8) are connected, and the other output terminal (7) is led out from the side of the first frame unit (1) where two bumped pads (9) are connected.
6. The power supply module arrangement with input protection according to any of the claims 1-5, characterized in that the input terminals (6) and the output terminals (7) are coplanar.
7. The power module structure with input protection according to claim 1, characterized in that the third frame unit (3) is arranged as a jump piece, one end of which is connected to the overvoltage protection chip (5) on one pad connector (11), and the other end of which is connected to the other pad connector (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810708184.5A CN108807306B (en) | 2018-07-02 | 2018-07-02 | Power module structure with input protection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810708184.5A CN108807306B (en) | 2018-07-02 | 2018-07-02 | Power module structure with input protection |
Publications (2)
| Publication Number | Publication Date |
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| CN108807306A CN108807306A (en) | 2018-11-13 |
| CN108807306B true CN108807306B (en) | 2024-02-13 |
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| CN201810708184.5A Active CN108807306B (en) | 2018-07-02 | 2018-07-02 | Power module structure with input protection |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110035587A (en) * | 2019-05-21 | 2019-07-19 | 横店集团得邦照明股份有限公司 | A kind of high power factor LED drive circuit simplified and its implementation |
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| CN201118457Y (en) * | 2007-08-25 | 2008-09-17 | 绍兴旭昌科技企业有限公司 | Micro surface mount single-phase full wave bridge commutator |
| CN204205929U (en) * | 2014-11-17 | 2015-03-11 | 宁波经济技术开发区恒率电源科技有限公司 | A kind of high-performance module switch power circuit with overvoltage protection |
| CN208173579U (en) * | 2018-07-02 | 2018-11-30 | 山东晶导微电子股份有限公司 | A kind of novel power supply power module architectures of band input protection |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102005039867B4 (en) * | 2005-08-23 | 2016-04-07 | Power Systems Technologies Gmbh | Input circuit for a switching power supply |
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2018
- 2018-07-02 CN CN201810708184.5A patent/CN108807306B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201118457Y (en) * | 2007-08-25 | 2008-09-17 | 绍兴旭昌科技企业有限公司 | Micro surface mount single-phase full wave bridge commutator |
| CN204205929U (en) * | 2014-11-17 | 2015-03-11 | 宁波经济技术开发区恒率电源科技有限公司 | A kind of high-performance module switch power circuit with overvoltage protection |
| CN208173579U (en) * | 2018-07-02 | 2018-11-30 | 山东晶导微电子股份有限公司 | A kind of novel power supply power module architectures of band input protection |
Non-Patent Citations (1)
| Title |
|---|
| 功率电子模块及其封装技术;俞晓东;何洪;宋秀峰;曾俊;李冉;石志想;;电子与封装(第11期);全文 * |
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| CN108807306A (en) | 2018-11-13 |
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