A Flyback 25W Switching Power Supply for Electric Vehicle

2014 ◽  
Vol 571-572 ◽  
pp. 889-892
Author(s):  
Zhu Lei Shao
Keyword(s):  
Electric Vehicle ◽  
Power Supply ◽  
Load Condition ◽  
Current Control ◽  
Control Mode ◽  
Maximum Pressure ◽  
Switching Power Supply ◽  
Switching Power ◽  
The Stability ◽  
Excellent Stability

In order to keep the stability of the control circuit of electric vehicle, a flyback switching power supply was designed in this paper. The flyback switching power supply adopting current control mode PWM chip UC3842, and the output power of flyback switching power supply is 25W. In the design process of flyback switching power supply, the component parameters of control loop are worked out thoroughly. The flyback transformer was designed by considering the maximum pressure value of power switch. From the experimental results, the flyback switching power supply can work stably in the full load condition. The flyback switching power supply has excellent stability and dynamic characteristics.

H∞ Control to the BUCK-Type Switching Power Supply with Small Perturbation

2013 ◽  
Vol 347-350 ◽  
pp. 1358-1362
Author(s):  
Zi Сheng Li ◽  
Li Xu ◽  
Bao Shan Yuan
Keyword(s):  
Power Supply ◽  
Current Control ◽  
Control Mode ◽  
State Variables ◽  
Switching Power Supply ◽  
Small Perturbations ◽  
Switching Power ◽  
Current Sampling ◽  
Output Filter ◽  
Filter Capacitor

The purpose in this paper is the design of the control to switching power supply for small perturbations. By the theoretical analysis and calculation, with the output filter inductor current and filter capacitor voltage switching power supply as two state variables, the conclusion is that control of the output filter inductor current sampling do well in the anti-jamming. The simulation is made for verification. And comparing the results, the current control mode shows a very strong anti-interference ability.

Research on 5V Internal Power Supply Circuit of Switching Power Supply

2014 ◽  
Vol 571-572 ◽  
pp. 950-954
Author(s):  
Zhu Lei Shao
Keyword(s):  
Power Supply ◽  
Input Voltage ◽  
Experimental Result ◽  
Switching Power Supply ◽  
Zener Diode ◽  
Supply Circuit ◽  
Switching Power ◽  
Power Supply Circuit ◽  
Circuit Structure ◽  
The Stability

In order to guarantee the stability working of internal circuit of switching power supply, an internal power supply circuit with stabilization output was designed in this paper. Based on the voltage stabilization principle of zener diode, the internal power supply circuit put the high input voltage into 5v output voltage. Because of using module circuit, the circuit structure is simplified effectively. Based on 0.35um BCD technology, the internal power supply circuit was built in PSPICE. According to the experimental result, the internal power supply circuit can output stably in different input voltage and environmental temperature.

scholarly journals Research on a Self-Coupling PID Control Strategy for a ZVS Phase-Shift Full-Bridge Converter

2021 ◽  
Vol 2021 ◽  
pp. 1-9
Author(s):  
Haidong Sun ◽  
Cheng Liu ◽  
Hao Zhang ◽  
Yanming Cheng ◽  
Yongyin Qu
Keyword(s):  
Control System ◽  
Phase Shift ◽  
Control Strategy ◽  
Power Supply ◽  
Pid Control ◽  
Output Voltage ◽  
Complex Frequency ◽  
Switching Power Supply ◽  
Switching Power ◽  
The Stability

As an important part of the high-frequency switching power supply, the control accuracy of the phase-shift full-bridge converter directly affects the efficiency of the switching power supply. To improve the stability and antidisturbance ability of phase-shift control systems, this article presents a dual closed-loop control system based on Self-Coupling PID (SC-PID) control and applies the SC-PID control strategy to the voltage control of the phase-shift full-bridge converter. To begin with, in response to the contradiction of traditional PID, SC-PID breaks the limitation of PID control by introducing a new control idea instead of weighted summation of each gain, which fundamentally solves the contradiction between overshoot and rapidity. Then, using the dimension attributes between gains to develop new tuning rules to solve the system load disturbance, output voltage deviation from the reference value, and other problems, the purpose is to ensure the stability of the output voltage and improve the control effect. At the same time, the stability of the whole control system is analyzed in the complex frequency domain. Finally, with the same main circuit and parameters, three types of controllers are built separately, and using MATLAB for simulation comparison, the simulation results show that the control system based on SC-PID has better steady-state accuracy, faster response, and better robustness, which proves the feasibility of the SC-PID control idea.

Research on Coating Devices with Applied Technology in Magnetron Sputtering Regulated Switching Power Supply Design

2014 ◽  
Vol 540 ◽  
pp. 134-137 ◽  
Author(s):  
Zhi Wen Zhou ◽  
Cai Xia Wang ◽  
An Ren Ma
Keyword(s):  
Power Supply ◽  
High Efficiency ◽  
High Reliability ◽  
Current Control ◽  
Constant Current ◽  
Switching Power Supply ◽  
Control Effect ◽  
Practical Applications ◽  
Switching Power ◽  
Applied Technology

Magnetron power supply is one of the most important components in coating devices in applied technology. Magnetron regulated power supply with high power and high efficiency is studied and designed on the basis of high-frequency switching power supply technology. The principle of the main circuit and control circuit design are introduced. A MATLAB simulating model is composed to study parameters and waveforms of the designed circuits. The hardware circuit and software program are designed based on simulation results. The adjustment and display of the output voltage and the output current of the power supply under different work modes are achieved with TMS320F2812 DSP system. Practical applications confirm that the designed power supply has good constant current control effect, high reliability and working stability.

The Design of 5V/100W High Frequency Switching Power Supply

2013 ◽  
Vol 834-836 ◽  
pp. 1221-1224
Author(s):  
Hong Zhuan Cai ◽  
Li Bai
Keyword(s):  
Power Supply ◽  
High Frequency ◽  
High Efficiency ◽  
Design Method ◽  
Switching Power Supply ◽  
Widespread Application ◽  
Forward Converter ◽  
Switching Power ◽  
Dc Power ◽  
Important Field

Switching power supply is an important field of application of power electronic technology, the high frequency switching DC power supply with high efficiency, small size, light weight and other advantages obtain the widespread application. The application of synchronous rectifier technology, photoelectric coupling isolation technology and the active clamp forward converter design high frequency switching power supply with 16~40V DC input and 5V/100W DC output . its operational principle is analyzed, and using LM5026 control chip describes design method of switching power supply.

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