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Rectifier bridge

A rectifier bridge and rectifier chip technology, which is applied in the direction of electrical components, electric solid devices, circuits, etc., can solve the problems of large space occupation and unfavorable miniaturization of electronic products, and achieve space saving, reasonable packaging structure space layout, and reduce space requirements Effect

Active Publication Date: 2020-12-15
苏州旭芯翔智能设备有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] In order to protect circuit components from the impact of transient high-voltage spikes, TVS diodes or varistors are generally added separately in the rectifier bridge to protect the components in the circuit, but the TVS diodes are soldered separately in the circuit board Or varistors, which occupy a large space and are not conducive to the miniaturization of electronic products

Method used

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Embodiment Construction

[0026] The following is a further non-limiting detailed description of the technical solution of the invention in combination with preferred embodiments and accompanying drawings.

[0027] Such as figure 1 , figure 2 , image 3 As shown, a rectifier bridge according to an embodiment of the present invention includes a package casing 1 and a lead frame located in the package casing 1, a rectifier chip and an overvoltage protection chip 2, and the lead frame includes a package stacked in a vertical direction. The first frame, the second frame and the third frame in the casing, the rectifier chip includes a first layer chip arranged between the first frame and the second frame and a second layer arranged between the second frame and the third frame chip; the overvoltage protection chip 2 is located between the first frame and the third frame, and the overvoltage protection chip 2 is located on one side of the rectifier chip in the horizontal direction, thus effectively reducin...

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Abstract

The invention discloses a rectifier bridge and belongs to the technical field of semiconductor components. The rectifier bridge discloses a packaging shell, a lead frame, a rectifier chip and an overvoltage protection chip, wherein the lead frame comprises a first frame, a second frame and a third frame which are stacked in the packaging shell; the rectification chip comprises a first layer of chip arranged between the first frame and the second frame and a second layer of chip arranged between the second frame and the third frame, the overvoltage protection chip is arranged between the firstframe and the third frame, and the overvoltage protection chip is located on one side of the rectification chip in the horizontal direction. According to the rectifier bridge, the occupied plane spaceof the whole product on the PCB is small, the problem of space utilization rate on the PCB is solved, and miniaturization development of rectifier bridge products is facilitated.

Description

technical field [0001] The invention relates to the technical field of semiconductor components, in particular to a rectifier bridge. Background technique [0002] The main function of the rectifier bridge in the switching power supply is to rectify and filter the alternating current into direct current. The rectifier bridge is one of the indispensable electronic components of various switching power supplies, and its performance is directly related to the technical indicators of the switching power supply and whether it is safe or not. work reliably. The existing rectifier bridge chip generally adopts an all-inclusive structure, that is, except for the pins of the chip, the rest of the chip is wrapped in a plastic package. [0003] In order to protect circuit components from the impact of transient high-voltage spikes, TVS diodes or varistors are generally added separately in the rectifier bridge to protect the components in the circuit, but the TVS diodes are soldered sep...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L25/16H01L23/495
CPCH01L25/16H01L23/49537H01L23/49541H01L23/49575H01L2224/33181
Inventor 朱坤恒
Owner 苏州旭芯翔智能设备有限公司
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