Temperature measuring circuit and motor controller
A temperature measurement circuit and controller technology, applied in the field of measurement, can solve the problems of poor circuit anti-interference ability and reduced measurement accuracy, and achieve the effects of improving measurement accuracy, improving accuracy and ensuring measurement accuracy.
Pending Publication Date: 2021-07-27
JING JIN ELECTRIC TECHNOLOGIES (BEIJING) CO LTD
View PDF5 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0002] In the traditional temperature measuring circuit, the temperature measuring resistor is directly amplified after dividing the voltage, and then the amplified signal is sent to the single chip microcomputer. The above temperature measuring circuit is transmitted to the control terminal through the wiring harness. Due to the harsh external environment, it will cause Coupled with a lot of noise, these noises will reduce the measurement accuracy, and the circuit has poor anti-interference ability, especially not suitable for automotive motor temperature measurement
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 moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0025] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with specific embodiments of the present invention and corresponding drawings. Apparently, the described embodiments are only some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0026] It should be understood that the terms "comprising / comprising", "consisting of" or any other variation are intended to cover a non-exclusive inclusion such that a product, apparatus, process or method comprising a series of elements includes not only those elements but also requires may also include other elements not expressly listed, or elements inherent ...
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
Login to View More Abstract
The invention discloses a temperature measuring circuit and a motor controller. The measuring circuit comprises a temperature sensor, a bridge circuit, a first filter circuit, an amplifying circuit and a controller. the temperature sensor is fixed with a measured target and is connected to the bridge circuit; the bridge circuit outputs a voltage difference according to the resistance change of the temperature sensor; the input end of the first filter circuit is connected with the bridge circuit, the output end of the first filter circuit is connected with the amplifying circuit, and the amplifying circuit is connected with the controller. The temperature measuring circuit is high in measurement precision, strong in circuit anti-interference capability, and especially suitable for being applied to an environment with relatively large electromagnetic interference.
Description
technical field [0001] The invention belongs to the field of measurement technology, in particular to a temperature measurement circuit and a motor controller. Background technique [0002] In the traditional temperature measuring circuit, the temperature measuring resistor is directly amplified after dividing the voltage, and then the amplified signal is sent to the single chip microcomputer. The above temperature measuring circuit is transmitted to the control terminal through the wiring harness. Due to the harsh external environment, it will cause A lot of noise is coupled, and these noises will reduce the measurement accuracy, and the circuit's anti-interference ability is poor, especially not suitable for application in automotive motor temperature measurement. Contents of the invention [0003] In view of the above problems, the present invention discloses a temperature measurement circuit and a motor controller, which can effectively improve the accuracy and anti-in...
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
Login to View More Patent Type & Authority Applications(China)
IPC IPC(8): G01K7/02G01K7/20G01K7/21H02P29/60
CPCG01K7/021G01K7/20G01K7/206G01K7/21H02P29/60
Inventor 罗小慧董双来加布里埃尔·加列戈斯·洛佩兹张浩
Owner JING JIN ELECTRIC TECHNOLOGIES (BEIJING) CO LTD