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Process for preparing integrated electric and electronic module based on discrete elements

A technology of power electronics and discrete components, applied in electrical components, irreversible DC power input to AC power output, circuits, etc., can solve the problems that restrict the development of power electronics technology and the expansion of application fields, high design cost, and design cycle Long and other problems, to achieve the effect of rich functions, high power level, small size

Inactive Publication Date: 2002-07-03
XI AN JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage of this device design method is that the design cycle is long, the design is difficult, and the design cost is high.
These problems seriously restrict the development of power electronics technology and the expansion of application fields.

Method used

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  • Process for preparing integrated electric and electronic module based on discrete elements
  • Process for preparing integrated electric and electronic module based on discrete elements
  • Process for preparing integrated electric and electronic module based on discrete elements

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Embodiment 1: see figure 1 , 2 , according to the technical solution of the present invention, the preparation of a power electronic integrated module based on discrete components includes a power circuit 1, a drive circuit 2, a control circuit 3 and a protection circuit 4 that are usually used in power electronic devices, and a small number of external components or The circuit integrates the above-mentioned discrete components constituting the power electronic circuit to form an independent module with complete functions; it is prepared according to the following steps:

[0030] 1) The power circuit 1 of the module adopts MOSFET or IGBT devices, and a heat-conducting insulating layer of silicon rubber material is set between the heat-dissipating bottom plate and the metal substrate of the module, and heat-conducting silicone grease is evenly coated on both sides of the insulating layer to enhance the heat-conducting effect;

[0031] 2) The power components of the po...

Embodiment 2

[0041] Embodiment 2: This embodiment is a prototype of a three-phase 380V AC input 10A / 220V DC output power operating power supply designed by applying the present invention, such as image 3 , its power circuit uses 4 IGBTs to form a full-bridge circuit, and the 4 sets of drive circuits all use medium-power transistors BD237 / 238 to form a push-pull amplifier, drive 4 IGBTs respectively, and isolate them from the main circuit through 4 pulse transformers; the control circuit adopts The dedicated PWM chip UC3875 constitutes the phase-shift full-bridge zero-voltage zero-current soft switching control (ZVZCS), and the peripheral circuit consists of an operational amplifier LM324 to constitute a voltage and current double closed-loop average current control mode circuit, and the control pulse output signal passes through a first-level CMOS 6 buffer CD4050 The processing of the signal further improves the current driving ability of the signal; the protection circuit adopts the opera...

Embodiment 3

[0042] Example 3: Figure 4 Shown is a photo of a power electronic integrated module prototype of a designed single-phase 220V AC input 20A / 48V DC output communication power supply prepared by applying the present invention. Its power circuit uses 4 power MOSFETs to form a full-bridge circuit; 4 sets of driving circuits use medium-power transistors BD237 / 238 to form a push-pull amplifier, drive 4 power MOSFETs respectively, and isolate them from the main circuit through 4 pulse transformers; the control circuit The dedicated PWM chip UC3875 is used to form a phase-shift full-bridge zero-voltage zero-current soft-switching control (ZVZCS), and together with the peripheral circuit to form a voltage and current double closed-loop peak current control mode circuit, the control pulse output signal passes through a first-level CMOS 6 buffer CD4050 The processing of the signal further improves the current driving ability of the signal; the protection circuit uses multiple operational...

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PUM

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Abstract

An integrated electronic module based on discrete elements for electric power features that the power elements, driver, controller and protecting circuit are integrated in a function module with pins to connect with less external elements. Its advantages include high technical performance and reliability.

Description

1. Technical field: [0001] The invention belongs to the circuit integration module in the technical field of power electronics, in particular, it prepares a power electronics integration module based on discrete components. 2. Background technology: [0002] Power electronic devices usually include power circuits, drive circuits, control circuits, and protection circuits, etc., which are currently composed of discrete components. Designers need to layout and install the components that realize the above functional circuits on the printed circuit board one by one. This is the current assembly design method at home and abroad. Image 6 Shown is the design process of a traditional power electronic device. The disadvantage of this device design method is that the design cycle is long, the design is difficult, and the design cost is high. And when designing similar products, the similar design process must be repeated. These problems seriously restrict the development of power...

Claims

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Application Information

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IPC IPC(8): H01L25/16H01L27/00H02M7/48
CPCH01L2924/0002
Inventor 杨旭陈文洁石勇王兆安
Owner XI AN JIAOTONG UNIV
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