Research on Energy Saving EDM Pulsed Power Supply with Cyclically Superimposed Chopper Circuit

2006 ◽  
Vol 315-316 ◽  
pp. 516-520 ◽  
Author(s):  
Shi Chun Di ◽  
Dong Bo Wei ◽  
Guan Xin Chi ◽  
Zhen Long Wang ◽  
J.T. Jiang
Keyword(s):  
Energy Loss ◽  
Energy Saving ◽  
Power Supply ◽  
Pulse Current ◽  
Electrical Discharge Machining ◽  
Short Circuit ◽  
Pulsed Power ◽  
Power Supplies ◽  
Pulsed Power Supply ◽  
Dc Power

This paper presents an energy saving electrical discharge machining (EDM) pulsed power supply, the principle of which is introduced. This pulsed power supply possesses no current-limiting resistors used in conventional EDM pulsed power supplies and no energy storage inductors applied in most other energy saving pulsed power supplies. Direct current from DC power supply is chopped to form many branches of paralleling spike pulse currents and the current branches are then combined into the desired pulse current for EDM machining through cyclic superimposition. The calculation method of energy loss is then analyzed. The short-circuit and contrastive machining experiments proved that the new pulsed power supply was capable of performing stable machining with higher machining efficiency and less main-machining-circuit energy loss than those of conventional EDM pulsed power supplies.

Development of a Pulsed DC Power Supply for Generating Cold Plasma Jet

2013 ◽  
Vol 791-793 ◽  
pp. 1841-1844 ◽  
Author(s):  
Ye Lin Hu ◽  
Zhi Wen Du ◽  
Zhao Quan Chen
Keyword(s):  
Power Supply ◽  
Cold Plasma ◽  
Plasma Jet ◽  
Pulsed Power ◽  
Discharge Circuit ◽  
Pulsed Discharge ◽  
Pulsed Power Supply ◽  
Dc Power ◽  
Pulsed Dc ◽  
The Stability

This paper discusses a lithium battery-driven cold plasma jet at atmospheric pressure with a pulsed power supply of design and its simulation. H.V. DC(High voltage directed current) and pulsed discharge circuit comprise of the entire pulse power system. H.V. DC circuit using TIs TMS320F28335 chips as the core of the circuit control module, the chip improves the stability of the H.V.DC circuits. Pulsed discharge circuit design plays a crucial impact on the formation of the narrowed pulses. A new double pulsed discharge circuit is designed by the proposed program. As discharge experiment shown finally, the steep narrowed pulse of pulsed power supply can be used to stabilize the output of the pulsed front.

Study on High-Voltage DC Power Supply for Electron Beam Furnace Based on Series Resonance

2014 ◽  
Vol 960-961 ◽  
pp. 916-920
Author(s):  
Sheng Wen Fan ◽  
Jun Du ◽  
Ze Ting Wang ◽  
Peng Wang
Keyword(s):  
Electron Beam ◽  
High Voltage ◽  
Power Supply ◽  
Short Circuit ◽  
Electron Gun ◽  
Power Supplies ◽  
Switching Loss ◽  
High Voltage Power Supply ◽  
Dc Power ◽  
Dc Power Supply

The high-voltage DC power supply for electron beam furnace belongs to Special Power Supplies. It has the characteristics of high voltage and high power. At present, the high voltage DC power supplies for electron beam furnace are mostly controlled by the silicon controlled rectifier operated by power frequency, which not only has the disadvantages of large volume but also doesn't has the characteristics of anti-short circuit capacity、 rapid protection and restart. This characteristic affects the service life of the electron gun and the quality of the smelting. To solve the above problems, a high frequency resonant converter has been used in high voltage power supply, reduced the volume of power supply and the switching loss, and achieved rapid protection and restart. Simulation and experimental research show that the power supply can meet the requirement of smelting.

Inductive Pulsed-Power Supply With Marx Generator Methodology

2009 ◽  
Vol 45 (1) ◽  
pp. 237-240 ◽  
Author(s):  
Y. Aso ◽  
T. Hashimoto ◽  
T. Abe ◽  
S. Yamada
Keyword(s):  
Power Supply ◽  
Pulsed Power ◽  
Marx Generator ◽  
Pulsed Power Supply
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