A High Precision Feedback Control and Measurement Circuit
A feedback control and measurement circuit technology, applied in the direction of using digital measurement technology for measurement, electrical components, analog conversion, etc., can solve the problems of poor universality, feedback control and measurement circuit control accuracy and measurement resolution, and achieve high Effects of measurement resolution and control accuracy
Active Publication Date: 2018-06-19
SHANGHAI UNITED IMAGING HEALTHCARE
View PDF6 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0009] In view of the shortcomings of the prior art described above, the purpose of the present invention is to provide a high-precision feedback control and measurement circuit, which is used to solve the problem of low control accuracy and measurement resolution of the feedback control and measurement circuit in the power electronic system in the prior art. , poor universality and other issues
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
[0049] Embodiments of the present invention are described below through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific implementation modes, and various modifications or changes can be made to the details in this specification based on different viewpoints and applications without departing from the spirit of the present invention.
[0050] see figure 2 . It should be noted that the diagrams provided in this embodiment are only schematically illustrating the basic idea of the present invention, and only the components related to the present invention are shown in the diagrams rather than the number, shape and shape of the components in actual implementation. Dimensional drawing, the type, quantity and proportion of each component can be changed arbitrarily dur...
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 provides a high-precision feedback controlling and measuring circuit. The high-precision feedback controlling and measuring circuit comprises a power electronic converter adjusting the output voltage, a high-precision sensor connected with the power electronic converter and used for feeding back signals, an error calculator used for subtraction of the feeding back signals and reference signals, a high-precision operation amplifier used for amplifying the error signals, a high-precision analog-digital converter used for converting output signals of the high-precision operation amplifier into digital signals, and a controller used for generating control signals of a power electronic converter unit according to the output signals of the high-precision operation amplifier and the digital reference signals. The measuring resolution ratio and the control precision can reach the pmm order and are much higher than those of a high-precision feedback control and measuring circuit in the prior art. In addition, the feedback signals are not limited in direct current signals, and the extremely high measuring resolution ratio and the control precision can be achieved through random waveform.
Description
technical field [0001] The invention relates to the field of power electronic control, in particular to a high-precision feedback control and measurement circuit. Background technique [0002] Power electronics technology is one of the most widely used technologies in the 21st century. With the increasing role of power electronics technology in the national economy, the development of power electronics technology is also very rapid. Therefore, the requirements for the performance and reliability of power electronic systems are getting higher and higher. [0003] In order to better improve the performance and reliability of the power electronic system, in some power electronic converters, it is necessary to perform ultra-high-precision feedback control on the output power of the power electronic converter, and at the same time, it is necessary to achieve ultra-high dynamic range signal The measurement, the measurement resolution even needs to reach the ppm (one millionth) le...
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 Patents(China)
IPC IPC(8): H03M3/00G01R19/25
Inventor 艾吉斯曹彬褚旭
Owner SHANGHAI UNITED IMAGING HEALTHCARE