Feasibility Study of High-Precision Power Supply for Ramping Dipoles of a Carbon/Proton Medical Synchrotron

2006 ◽  
Vol 16 (2) ◽  
pp. 1634-1637
Author(s):  
M. Incurvati ◽  
C. Sanelli ◽  
I. De Cesaris
Keyword(s):  
High Precision ◽  
Feasibility Study ◽  
Power Supply ◽  
Medical Synchrotron

Design of High Precision Power Supply for Low-Frequency Vibration Cutting

2004 ◽  
Vol 471-472 ◽  
pp. 494-497
Author(s):  
X.G. Jiang ◽  
D.Y. Zhang
Keyword(s):  
Power Amplifier ◽  
High Precision ◽  
Frequency Band ◽  
Power Supply ◽  
High Stability ◽  
Low Frequency ◽  
Sine Wave ◽  
Vibration Cutting ◽  
Low Frequency Vibration ◽  
Small Band

The frequency of piezoelectric transducer requires high stability and can also be continuously changed. The voltage requires smooth and stable sine wave. To the two problems, a high precision power supply for vibration cutting is designed. It divides the whole frequency band into several small bands. By means of CPLD, the sine wave is digitally fitted individually at each small band. So the sine wave can be always suitable at a wide frequency band. At the power output, OCL power amplifier is adopted. The output sine voltage becomes smooth and stable by adding voltage negative feedback to the power amplifier. The experiment results show its feasibility.

Design and test of high precision dynamic power supply

2021 ◽  
Author(s):  
Guodong Zhao ◽  
Wenqing Zhang ◽  
Jun Li ◽  
Xin Qi ◽  
Yuntao Liu
Keyword(s):  
High Precision ◽  
Power Supply ◽  
Dynamic Power

Parameters Design of Main Circuit of AC Constant Voltage Power Supply Based on Dual Directional Reversible PWM Control

2011 ◽  
Vol 383-390 ◽  
pp. 5771-5777
Author(s):  
Yu Quan Ma ◽  
Li Hong Zhang ◽  
Shu Fen Han ◽  
Zhi Peng Lin
Keyword(s):  
High Precision ◽  
Power Supply ◽  
Small Volume ◽  
High Efficiency ◽  
Pwm Control ◽  
Constant Voltage ◽  
Dc Voltage ◽  
Quality Of Supply ◽  
Parameters Calculation

The constant voltage power supply with dual directional reversible PWM compensation has merits of high precision, high efficiency, small volume, and so on. To ensure the quality of supply, it is important to fix the value of inductance, capacitance in main circuit. From the angle of filtering, and through analysis of the circuit working, detailed formulas of the inductance and capacitance calculation are given and an example of it is given too. In parameters calculation, to reduce the volume, the filter inductance is taken a smaller value but the capacitance is taken a greater value; the DC smoothing capacitance should be chosen according to the amplitude limit of DC voltage rising in inversion, and should be taken as great as possible to maintain voltage stabilizing precision.

A Novel Integration Method with Stabilizing Voltage and Frequency, UPS, Intelligent Charging for Mobile Power Supply

2014 ◽  
Vol 530-531 ◽  
pp. 1126-1129
Author(s):  
Yi Fei Wang ◽  
You Xin Yuan ◽  
Liang Yuan ◽  
Ping Kuang ◽  
Jing Chen
Keyword(s):  
High Precision ◽  
Power Supply ◽  
Topological Structure ◽  
Integration Method ◽  
Integrated System ◽  
Voltage Amplitude ◽  
Integration System ◽  
Advanced Method ◽  
Integrated Method ◽  
Precision Voltage

A novel integration method with stabilizing voltage and frequency, UPS, intelligent charging for mobile power supply has been proposed in this paper. Process of the advanced method can be divided into four steps, including the generating electricity, outputting stabilizing voltage and frequency, UPS, intelligent charging. The following works have been done in the study: the principle of the integration method, the topological structure of integration system, the Implementation of the integration method. According to the principle of the integrated method, the integrated system can be developed. The system can be realized functions, such as the generating electricity, outputting stabilizing voltage and frequency, UPS, intelligent charging and so on. By the system, the high precision voltage amplitude and frequency is supply to outdoor load, and the UPS state is maintained.

Design of Digital Type Axis-Angle Sensor Based on Singlechip

2014 ◽  
Vol 599-601 ◽  
pp. 892-895
Author(s):  
Jian Chao Yu ◽  
Xiang Bin Yu ◽  
Jun Li
Keyword(s):  
High Precision ◽  
Power Supply ◽  
Output Signal ◽  
Simple Structure ◽  
Analog Signal ◽  
Digital Measurement ◽  
Angle Sensor ◽  
Serial Interface ◽  
Structure Reliability ◽  
Serial Data

The synchronizer is often used for the measurement of axis-angle because of its simple structure, reliability and high precision. But the output signal from the synchronizer is an analog signal, so it is difficult to realize digital measurement. This paper introduces a measuring circuit based on a singlechip. This circuit can produce exciting signal independently and no extra exciting power supply is needed, making the application easy. The AC signals output from the synchronizer are converted into DC signals and then measured directly by the singlechip. The measuring data, after being processed, are turned into serial data to output through a RS232 serial interface. The synchronizer equipped with the circuit will be a digital axis-angle sensor. The sensor is of high precision and reliability, low price, easy application and high practical value.

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