Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
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
Printing material coating system and method for operating the system
Tunable laser source using intracavity laser light outcoupling and module containing the same
Electrochemical reactor units and modules and systems composed of them
In-line packet reassembly within a mobile gateway
Object processing apparatus and storage medium having object processing program stored thereon
Web-based animation
Display interface methods and systems
  Randomly Featured Patents
Multi-turn sensor
Handle assembly for a collapsible luggage trolley
Ligands based on chiral 2-amino-2'-hydroxy-1,1'-binaphthyl and related frameworks for asymmetric catalysis
Handle for a tool
Actuating element a straight-toothed gearbox
Orthodontic device
Leaf seal, in particular for a gas turbine
Movement measuring device, electronic game machine including movement measuring device, and method of playing game machine
Outlet for connecting spray nozzles, drop tubes or the like to an irrigation pipe
Catalyst for contact reduction of NOx in engine exhaust gases and method of producing same