Single-phase direct-current motor driving chip and chip drawing method

A DC motor and drive chip technology, which is applied in the direction of instruments, computer-aided design, electric solid-state devices, etc., can solve the problems of mutual interference between analog and digital circuits, device mismatch, etc., and achieve the advantages of convenient routing, reduced interference, and saving area Effect

Active Publication Date: 2020-05-19
HANGZHOU DIANZI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the prior art, digital-analog hybrid integrated circuits have problems such as mutual interference between analog and digital circuits and device mismatch.

Method used

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  • Single-phase direct-current motor driving chip and chip drawing method
  • Single-phase direct-current motor driving chip and chip drawing method
  • Single-phase direct-current motor driving chip and chip drawing method

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Embodiment Construction

[0028] The present invention will be specifically introduced below in conjunction with the accompanying drawings and specific embodiments.

[0029] Such as figure 2 As shown, a single-phase DC motor drive chip includes a digital layout area 1 and an analog layout area. The digital layout area 1 is separated from the analog layout area and connected to each other through signal lines. The digital layout area 1 is located in the chip On the upper right of the upper right, the digital modules are mostly logic circuits, with fast timing conversion speed, fast frequency, and large noise. Centrally placed and separated can prevent digital modules from interfering with analog modules; the signal lines include clock signal lines, that is, the digital modules Clock signal lines such as clk and chop leading to the analog layout area are shielded with ground wires, the digital layout area 1 is arranged with digital modules, and the analog layout area is arranged with analog modules.

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Abstract

The invention discloses a single-phase direct-current motor driving chip and a chip drawing method. The chip comprises a digital layout area and an analog layout area, wherein the digital layout areais separated from the analog layout area, a digital module is arranged in the digital layout area, an analog module is arranged in the analog layout area, the digital module and the analog module areconnected with each other through a signal line, and the signal line is provided with ground wire shielding. The chip drawing method comprises the following steps: step 1, determining the area of thechip; 2, determining the shape of a protection ring; 3, planning the position of the modules; 4, carrying out layout and drawing; step 5, carrying out DRC / LVS verification; step 6, carrying out post-imitation; and step 7, carrying out delivery and manufacturing.

Description

technical field [0001] The invention relates to the technical field of chip design, in particular to a single-phase DC motor drive chip and a chip drawing method. Background technique [0002] A motor (also known as a motor) is a device that converts electrical energy into mechanical energy. Motors are not only widely used in aerospace, scientific instruments, industrial equipment, transportation, medical, office automation equipment, home appliances and other products. With the rapid development of electronic technology and integrated circuits, low-power motor driver chips need to integrate various failure protection mechanisms such as over-current and over-temperature while ensuring basic driving functions. Motors can be divided into AC motors using AC power and DC motors using DC power according to their input types. AC motors are generally used in high-power applications because of their convenient source of AC power and simple control systems. Due to its good control p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L27/02G06F30/3308G06F30/392G06F113/18
CPCH01L27/0207
Inventor 刘星李文均
Owner HANGZHOU DIANZI UNIV
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