Check patentability & draft patents in minutes with Patsnap Eureka AI!

Motor controller and sampling signal processing method thereof

A motor controller and signal technology, applied in the field of power electronics, can solve problems such as inability to judge output voltage sampling results, random hardware failures, etc.

Active Publication Date: 2019-01-04
SUNGROW SHANGHAI CO LTD
View PDF9 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In some occasions, the motor controller needs to collect its own output voltage for torque comparison. The accuracy of the output voltage sampling result directly affects the accuracy of the torque comparison. However, random hardware failures may occur in the output voltage sampling channel. If not With random hardware failure detection, it is impossible to judge whether the output voltage sampling result is accurate

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Motor controller and sampling signal processing method thereof
  • Motor controller and sampling signal processing method thereof
  • Motor controller and sampling signal processing method thereof

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0045] Example 1: The main path of the sampling unit includes a voltage dividing resistor network, and a low-pass filter connected to the output of the voltage dividing resistor network, such as figure 2 shown. which is, figure 2 The output terminal of the low-pass filter is used as the preset node. Among them, the low-pass filter can be implemented by an op-amp analog circuit, and the voltage-dividing resistor network can be implemented by connecting resistors in series.

[0046] exist figure 2 On the basis of , the two branches in the same sampling unit can be any two of the following four branches ( figure 2 Only take the following first branch and second branch as an example, and the isolated operational amplifier module is used in the first branch):

[0047] The first branch includes: an operational amplifier module connected to the output end of the low-pass filter, and an analog-to-digital converter connected to the output end of the operational amplifier module...

example 2

[0052] Example 2: the main path of the sampling unit includes a voltage dividing resistor network, a low-pass filter connected to the output end of the voltage dividing resistor network, and an isolated analog-to-digital converter connected to the output end of the low-pass filter ,Such as Figure 4 shown. which is, Figure 4 The output end of the isolated analog-to-digital converter is used as the preset node.

[0053] exist Figure 4 On the basis of , a branch in the sampling unit includes: an SPI (SerialPeripheralInterface, Serial Peripheral Interface) driver connected to the output of the isolated analog-to-digital converter;

[0054] Another branch in the same sampling unit includes: a DMA (Direct Memory Access, direct memory access) generator connected to the output end of the isolated analog-to-digital converter.

[0055] 2) About the algorithm of microprocessor 200

[0056] The microprocessor 200 is used to calculate the deviation between the output signals of the...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The application discloses a motor controller and a sampling signal processing method thereof, thereby detecting whether a random hardware failure occurs in a sampling circuit. The motor controller comprises a sampling circuit and a microprocessor. The sampling circuit includes two sampling units with same circuit structures; input terminals of the two sampling units are connected with any two linevoltage output terminals of the motor controller one by one; and the main circuit of each sampling unit is divided into two branch circuits at a preset node and the two branch circuits are connectedto the microprocessor, wherein the two branch circuits in the same sampling unit have different circuit structures. The microprocessor is used for calculating an offset between output signals of the two branch circuits in each sampling unit, determining whether the offset exceeds a first preset value, and outputting a fault signal if the offset exceeds the first preset value and is also used for calculating an offset between output signal amplitudes of any two branch circuits having the same circuit structures, determining whether the offset between the output signal amplitudes exceeds a second preset value, and outputting a fault signal if the offset between the output signal amplitudes exceeds the second preset value.

Description

technical field [0001] The present invention relates to the technical field of power electronics, and more specifically, relates to a motor controller and a sampling signal processing method thereof. Background technique [0002] The motor controller is an integrated circuit that controls the motor to work according to the set direction, speed, angle, response time, etc. In some occasions, the motor controller needs to collect its own output voltage for torque comparison. The accuracy of the output voltage sampling result directly affects the accuracy of the torque comparison. However, random hardware failures may occur in the output voltage sampling channel. If not With random hardware failure detection, it is impossible to judge whether the output voltage sampling result is accurate. Contents of the invention [0003] In view of this, the present invention provides a motor controller and a sampling signal processing method thereof, so as to detect whether random hardwar...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/34G01R19/00G01R19/25
CPCG01R19/0084G01R19/2509G01R31/34
Inventor 陈文杰杜恩利于安博
Owner SUNGROW SHANGHAI CO LTD
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com