Resources Contact Us Home
Power supply system for electric discharge machines

Image Number 2 for United States Patent #5126525.

A power supply for an electroerosion machine having a switching element which controls the machining current in the gap. The value of the current is compared with a predetermined voltage and the signal generated based on this comparison is provided to a logic gate, advantageously an "AND" gate, whose output signal is applied to the control electrode of the switching element. The power supply supresses any arcing tendency during the gap short circuit conditions and increases the total current through the gap even when gap voltage is low in order to maintain a high machining rate. Electrode consumption is reduced by using a generally step-type current waveform signal. Machining current during the discharge period may be controlled to more closely approximate a square wave so that shifting to a faster machining rate can be easily accomplished by accepting some sacrifice in electrode consumption. Preferably, two or more switching and gating devices are used to permit gap current to flow intermittently during the entire discharge period.

  Recently Added Patents
Synthesizing VHDL multiple wait FSMS into RT level FSMS by preprocessing
Information processing apparatus, non-transitory computer-readable recording medium, and information processing method
Temporary protective cover for an exposed junction box
Methods circuits apparatuses and systems for facilitating access to online content
Image processing system and method
Method and system for dynamic storage tiering using allocate-on-write snapshots
Perspective runway system
  Randomly Featured Patents
Method for producing .alpha.-L-aspartyl-L-phenylalanine-.beta.-ester and method for producing .alpha.-L-aspartyl-L-phenylalanine-.alpha.-methyl ester
Apparatus for operatively supporting a machine gun
Stimulating neutrophil function to treat inflammatory bowel disease
Safety arrangement for firearms
Boot for motorcycling
Photovoltaic device including flexible or inflexibel substrate and method for manufacturing the same
Method and system for measuring customer delivery service
Display apparatus for teaching writing
Front combination lamp of automobiles
Interference display unit