The Design of 25KV High-Frequency High-Voltage Power Supply

2014 ◽  
Vol 912-914 ◽  
pp. 927-930
Author(s):  
Qiang Jiang
Keyword(s):  
Power Supply ◽  
High Frequency ◽  
Pulse Width ◽  
Pulse Width Modulation ◽  
Single Chip ◽  
Single Chip Microcomputer ◽  
High Voltage Power Supply ◽  
Switch Power Supply ◽  
Switch Power ◽  
Inverter Topology

In this paper, a HV and HF switch power supply was designed, which was controlled through a single chip microcomputer, also the MOSFET was used as the switch power tube. The PWM (pulse width modulation) technique and half-bridge inverter topology have been used to invert AC into the DC that can be adjust from 0V~25KV and the operating frequency is 35KHz, Through the simulation with the Saber software and practical use, the feasibility of the scheme and the correctness of the design have been verified.

Designing of a High Voltage Power Supply for Electrospinning Apparatus Using a High Voltage Flyback Transformer (HVFBT)

2015 ◽  
Vol 771 ◽  
pp. 145-148 ◽  
Author(s):  
Muhammad Miftahul Munir ◽  
Dian Ahmad Hapidin ◽  
Khairurrijal
Keyword(s):  
High Voltage ◽  
Duty Cycle ◽  
Power Supply ◽  
Pulse Width ◽  
Output Voltage ◽  
Pulse Width Modulation ◽  
Experimental Results ◽  
High Voltage Power Supply ◽  
Electrospinning Technique ◽  
The World

Research on nanofiber materials is actively done around the world today. Various types of nanofibers have been synthesized using an electrospinning technique. The most important component when synthesizing nanofibers using the electrospinning technique is a DC high voltage power supply. Some requirements must be fulfilled by the high voltage power supply, i.e., it must be adjustable and its output voltage reaches tens of kilovolts. This paper discusses the design and development of a high voltage power supply using a diode-split transformer (DST)-type high voltage flyback transformer (HVFBT). The DST HVFBT was chosen because of its simplicity, compactness, inexpensiveness, and easiness of finding it. A pulse-width modulation (PWM) circuit with controlling frequency and duty cycle was fed to the DST HVFBT. The high voltage power supply was characterized by the frequency and duty cycle dependences of its output voltage. Experimental results showed that the frequency and duty cycle affect the output voltage. The output voltage could be set from 1 to 18 kV by changing the duty cycle. Therefore, the nanofibers could be synthesized by employing the developed high voltage power supply.

5V to 6kV DC-DC Converter Using Switching Regulator with Cockcroft-Walton Voltage Multiplier for High Voltage Power Supply Module

2019 ◽  
Vol 12 (2) ◽  
pp. 162-171 ◽  
Author(s):  
Nor A. Azmi ◽  
Sohiful A.Z. Murad ◽  
Azizi Harun ◽  
Rizalafande C. Ismail
Keyword(s):  
High Voltage ◽  
Power Supply ◽  
Pulse Width ◽  
Pulse Width Modulation ◽  
Feedback Signal ◽  
High Voltage Power Supply ◽  
Voltage Multiplier ◽  
Switching Regulator ◽  
Load Regulation ◽  
Simulation Results

Background: This paper describes the design of 5 V to 6 kV DC-DC converter by using a switching regulator with Cockroft-Walton (C-W) voltage multiplier for a high voltage power supply module. Methods: The proposed design consists of Pulse Width Modulation (PWM) controller circuit, voltage multiplier, and feedback signal. A single unit of 5 V input triggers LT1618 controller circuit to generate 20 V which then produces 300 V from LT8331 output that is connected to diode-capacitor multiplier circuit to achieve final 6 kV. A negative feedback signal is required to stabilize an output voltage. With the implementation of C-W voltage multiplier technique, the output is boosted up as required from the input signal voltage 5 V DC. Results: The LTspice simulation results indicate that the proposed DC converter can generate 6.20 kV. Line regulation of 17 % and the load regulation of 14 % are obtained based on the proposed design. Conclusion: The proposed design is suitable for high voltage power supply module.

Optimization Design of High Frequency Transformer for Multiple Outputs Switching Power Supply

2014 ◽  
Vol 1044-1045 ◽  
pp. 370-374
Author(s):  
Yan Liu ◽  
Ming Li Lu ◽  
Chao Qu
Keyword(s):  
Power Supply ◽  
High Frequency ◽  
Optimization Design ◽  
Electromagnetic Compatibility ◽  
Ripple Effect ◽  
Switching Power Supply ◽  
Switching Power ◽  
High Frequency Transformer ◽  
Switch Power Supply ◽  
Switch Power

With TOP243Y as control chip of multiplexed output flyback switch power supply, has the advantages of small volume, high integration and strong function, and the high-frequency transformer design and calculation large effect on the overall performance of multiple output the switch power supply. Based on the design computation to optimize the parameters of the transformer can be achieved to improve voltage accuracy, reducing the ripple effect. Seen from the experimental data and waveform of the switching power supply regulator, electromagnetic compatibility are good, meet the design requirements.

Design of Electrostatic Precipitator Power System Based on Auto Disturbance Rejection Controller

2013 ◽  
Vol 846-847 ◽  
pp. 190-194
Author(s):  
Shu Jun Yin ◽  
Xue Ren Li ◽  
Ji Geng Luo
Keyword(s):  
Power Supply ◽  
Disturbance Rejection ◽  
Power Supply System ◽  
Electrostatic Precipitator ◽  
Supply System ◽  
System Stability ◽  
Engineering Practice ◽  
Single Chip ◽  
High Voltage Power Supply ◽  
The Stability

The paper designs a three-phase high voltage power supply system based on active disturbance rejection controller which make single-chip microcomputer ATmega128 as the main control chip and the system improve the stability and control precision of dust removing power. Engineering practice shows that, the DC power supply system has the advantages of convenient operation, high work efficiency, system stability.

Design of Switch Transformer about the Push-Pull Switch Power Supply

2013 ◽  
Vol 341-342 ◽  
pp. 1266-1270
Author(s):  
Gang Wu ◽  
Yu Tang
Keyword(s):  
Power Supply ◽  
High Efficiency ◽  
Skin Effect ◽  
Circuit Simulation ◽  
Switching Power Supply ◽  
Switching Power ◽  
The Family ◽  
Switch Power Supply ◽  
Design Requirements ◽  
Switch Power

the push-pull switch power is a kind of form in the family. It has the characteristics of good voltage output, high efficiency, the simple circuit and so on. On the design of the push-pull switch power supply, the key and difficult point is the design of switch transformer. Taking the switch transformer of a push-pull switching power supply as the research object and based on the design requirements, this paper aims to realize the calculation of the coil turns in switching transformer. Meanwhile, under the consideration of the skin effect and the proximity effect and the choices of switch transformers wires and the methods of wires winding, the design of switch transformer of the push-pull switch power supply has been completed by circuit simulation and implementation.

Design of Portable On-Board Charger

2012 ◽  
Vol 229-231 ◽  
pp. 837-840
Author(s):  
Deng Liang Cheng ◽  
Wei Rong Jiang ◽  
Jian Wei Mei
Keyword(s):  
Pulse Width ◽  
Parallel Machines ◽  
Pulse Width Modulation ◽  
Control Mode ◽  
Constant Current ◽  
System Control ◽  
Single Chip ◽  
Battery Charging ◽  
Loop Control ◽  
Bus Voltage

To solve the key technology of automotive lithium battery charging system, a new kind of smart portable on-board charger is developed. This battery charger takes single-chip machine of freescale as system control chip, realizes closed-loop control of bus voltage by the voltage pulse width modulation chip TL494, realizes charger output with constant voltage, constant current and switch without disturbances by the current pulse width modulation chip UC3846, achieves master-slave control mode for multi–parallel machines through the CAN bus technology. In addition, the microcontroller program realizes the process monitoring and fuzzy PID regulation, the charging process has multiple intelligent protection and external regulatory functions. The experimental results show that with dual regulations of the software and hardware, the charger has the advantages of stable reliability, flexible operation and precise intelligence, an effective exploration of the battery charging technology is carried out.

A Study on the Thermal Management of the Electronic Parts and Systems

2004 ◽  
Author(s):  
Jyh-Tong Teng ◽  
Shih-Cheng Tsang ◽  
Jiunn-Shyang Chen ◽  
Tien-Juinn Fung
Keyword(s):  
Thermal Management ◽  
Power Supply ◽  
High Energy ◽  
Electronic Components ◽  
Desktop Computer ◽  
Notebook Computer ◽  
Parametric Studies ◽  
Switch Power Supply ◽  
Switch Power ◽  
Electronic Parts

The rapid developments of computer industry and semiconductor processes lead to high component density, high-energy dissipation, and compact volume of the electronic components in systems. Those are especially true for the high-energy density of the CPUs, resulting in high temperature rise for the electronic chips. To preserve the life span of the integrated circuits and to ensure their proper functions, it is necessary to develop proper means for evaluating the related thermal management in order to effectively dissipate the energy released from these electronic parts and systems. This project used Icepak 4.0, developed by Fluent, to determine thermal-fluidic behaviors of the notebook computer, desktop computer, and switch power supply, under an environmental temperature of 35°C. In addition, parametric studies were carried out to evaluate the distribution of temperature inside the systems under investigation and the effectiveness of overall thermal management for the systems. Icepak uses the unstructured grid generation technique for the three-dimensional modeling of the electronic components and systems. With the computational fluid dynamics (CFD) solver employed by Fluent and using the finite volume method, Icepak simulates the flow and temperature fields inside the system or component of concern. Parametric studies — including the positions for venting, the locations for the cooling fans, the directions of flow for the fans (either by blowing or suction), and the number of fins used for heat dissipation — were carried out to determine the effectiveness of the thermal management designs of the desktop computer, notebook computer, and switch power supply under an environment temperature of 35 °C. Results of this study indicated that the peak component temperatures for the three systems under study are 84 °C, 80 °C, and 81 °C, respectively, while the maximum allowable temperatures suggested by the manufacturers of these three items are 85 °C, 90 °C, and 85 °C, respectively.

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