The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 20, 1994
Filed:
Jan. 26, 1993
Yoshihide Kinbara, Nagoya, JP;
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Abstract
An electric power-source apparatus for a discharge processing machine comprises a constant-current supply section having a first switching element and an output-current interrupting section having a second switching element. Processing power is supplied to a location between an electrode and a workpiece which are arranged within a dielectric. A comparator compares output-current detecting values from the constant-current supply section, and upper-limit addition voltage and lower-end subtraction voltage of an output-current command section with each other, respectively. Output current from the constant-current supply section is controlled by a first flip flop. A timer section is controlled by a discharge command from a discharge command section and a discharge-time command section. The output-current interrupting section is controlled by the comparator, the timer section and a second flip flop.