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A kind of synchronous rectification chip suitable for smc

A synchronous rectification and chip technology, applied in output power conversion devices, cleaning methods using gas flow, conversion of AC power input to DC power output, etc., can solve the cost increase of synchronous rectifier chips, determine the required configuration, The installation and use of rectifier chips are inconvenient to achieve the effect of enhancing timeliness and user experience

Active Publication Date: 2022-05-17
深圳辰达半导体有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the above-mentioned shortcomings in the prior art, the present invention provides a synchronous rectification chip suitable for SMC, which solves the problem that the installation method of the existing synchronous rectification chip is the same as that of other chips, and it can only be installed by carrying other chips during use. It is deployed by controlling the chip, and the connection is fixed and difficult to replace, which leads to an increase in the cost of early installation and later maintenance of the synchronous rectification chip during use. At the same time, when the synchronous rectification chip is running, the user cannot The equipment judges its required configuration, which brings inconvenience to the installation and use of synchronous rectification chips

Method used

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  • A kind of synchronous rectification chip suitable for smc
  • A kind of synchronous rectification chip suitable for smc
  • A kind of synchronous rectification chip suitable for smc

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] A kind of synchronous rectification chip suitable for SMC of the present embodiment, as Figure 1-2As shown, including the synchronous rectification chip main body 1, the top surface of the synchronous rectification chip main body 1 is symmetrically fixedly connected with the limit block 2, the top surface of the synchronous rectification chip main body 1 is connected with a screw 3 through a bearing, and the surface of the screw 3 is threaded The control frame 4 is sleeved, and the control frame 4 is set on the surface of the synchronous rectification chip main body 1 and the limit block 2. The interior of the synchronous rectification chip main body 1 is equidistant and symmetrically fixedly connected with the connecting metal sheet 5, and the synchronous rectification chip main body 1 The four corners of the surface are fixedly connected with fixed blocks 6, the surface of the fixed block 6 is threaded and inserted with screws 7, and the interior of the synchronous re...

Embodiment 2

[0059] A synchronous rectification chip suitable for SMC is deployed with the following synchronous rectification circuit, such as image 3 shown, including:

[0060] The synchronous rectification chip assembly Q1 is the operating program carried inside the synchronous rectification chip;

[0061] The rectifier switch tube Q2 is used to be connected in series to the output circuit of the secondary side of the transformer, and is configured to rectify the induced voltage generated by the secondary side of the transformer;

[0062] The power module Q3 is used to provide operating energy for the synchronous rectification chip assembly Q1:

[0063] Calibration module Q4, used for writing voltage parameters, and outputting a turn-on indication signal with the written voltage parameters as a reference;

[0064] The charging module Q5 is used to configure the induced voltage to generate a charging voltage, and output an inversion signal when the charging voltage reaches the referen...

Embodiment 3

[0073] A synchronous rectification chip deployment suitable for SMC has the following implementation methods, such as Figure 4 As shown, the steps are as follows:

[0074] S1: Analyze the cause of power loss according to the equipment used;

[0075] S2: According to the calculation formula of electric energy loss, calculate the underestimation of the rated load of power loss;

[0076] S3: Design a synchronous rectification scheme according to the calculation results of the underestimation;

[0077] S4: Choose matching synchronous rectification chip or synchronous rectification chip module for adaptive installation;

[0078] S5: Trial run of newly loaded synchronous rectification chip equipment, analysis of current node fluctuation frequency, evaluation of synchronous rectification chip and compatibility;

[0079] S6: Record the single operation cycle of the synchronous rectification chip, combine with the initial equipment comparative analysis report, and generate a new sy...

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Abstract

The invention relates to the technical field of power distribution circuits, in particular to a synchronous rectification chip suitable for SMC, including a synchronous rectification chip body, a symmetrical fixed connection limit block on the top surface of the synchronous rectification chip body, and a bearing on the top surface of the synchronous rectification chip body. A screw is connected, and the surface of the screw is provided with a control frame through a thread sleeve. The control frame is sleeved on the surface of the main body of the synchronous rectification chip and the surface of the limit block. The four corners of the main body of the rectifier chip are fixedly connected with fixed blocks. Through the structure of the present invention, the synchronous rectifier chip can be conveniently switched by the user during use, and has a certain effect of cleaning dust during the switching process of opening and closing. The flow friction synchronous rectification chip generates static electricity, and at the same time provides a convenient deployment operation method, which greatly enhances the timeliness of installation and use of the synchronous rectification chip during installation and use.

Description

technical field [0001] The invention relates to the technical field of power distribution circuits, in particular to a synchronous rectification chip suitable for SMC. Background technique [0002] Synchronous rectification is a new technology that uses special power MOSFETs with extremely low on-state resistance to replace rectifier diodes to reduce rectification losses. It can greatly improve the efficiency of DC / DC converters and there is no Schottky barrier voltage. The dead zone voltage caused by the power MOSFET is a voltage-controlled device, and its volt-ampere characteristic is linear when it is turned on. When a power MOSFET is used as a rectifier, the gate voltage must be synchronized with the phase of the rectified voltage to complete the rectification function. The development of electronic technology has made the operating voltage of the circuit lower and lower, and the current is higher and higher. Low-voltage operation is conducive to reducing the overall po...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02M7/00H02M1/08B08B5/02
CPCH02M7/003H02M1/08B08B5/02Y02B70/10
Inventor 马奕超
Owner 深圳辰达半导体有限公司