Microprocessor controlled welding apparatus

Details Microprocessor controlled welding apparatus Microprocessor controlled welding apparatus

1983-02-24

1985-12-24

Smith, Jerry

Boots, shoes, and leggings

21913021, 21913033, 219137R, 901 42, G06F 1546, B23K 920

Patent

active

045610592

ABSTRACT:
A microprocessor-controlled arc welding power supply is disclosed. A silicon controlled rectifier ("SCR") bank is used to generate a direct current arc welding current under program control. Positive sychronization is provided by the microprocessor using a phase locked loop and a polarity detector, so that the gating signals applied to the SCRs are correctly timed. Optimum tradeoffs between hardware and software are accomplished by using look up tables to store correction factors that can be quickly accessed during execution, and by using timers as smart interface chips to fire the SCRs at the same angle during each cycle until changed or updated by the microprocessor. The arc welding power supply is capable of operating in a constant current or constant voltage mode without rewiring the circuit.

REFERENCES:
patent: 3883714 (1975-05-01), James
patent: 4024371 (1977-05-01), Drake
patent: 4063075 (1977-12-01), Collom
patent: 4071885 (1978-01-01), Bilczo et al.
patent: 4093844 (1978-06-01), Fellure et al.
patent: 4101753 (1978-07-01), Buff et al.
patent: 4104724 (1978-08-01), Dix et al.
patent: 4109130 (1978-08-01), Oku
patent: 4241285 (1980-12-01), Golonka, Sr. et al.
patent: 4254466 (1981-03-01), Jurek
patent: 4280137 (1981-07-01), Ashida et al.
patent: 4289948 (1981-09-01), Jurek et al.
patent: 4289951 (1981-09-01), Jurek
patent: 4301351 (1981-11-01), Mathews
patent: 4315129 (1982-02-01), Wilkinson et al.
patent: 4390954 (1983-06-01), Manning
patent: 4442339 (1984-04-01), Mizuno et al.
patent: 4445022 (1984-04-01), Muri
patent: 4448342 (1984-05-01), Abe et al.
patent: 4456808 (1984-06-01), Wilkinson et al.
"Recent Developments", Engineering, pp. 304-307 (Apr., 1981).
"Arc Welding: New Equipment, Evolving Technologies", Production pp. 56-61 (Mar., 1978).
"Microcomputers Automate Welding", American Machinist, pp. 95-98 (Oct. 1978).
"Welding In The 1980's", Engineering Materials And Design, pp. 1-6 (Oct., 1980).

Affiliated with

Also associated with

Rating

Microprocessor controlled welding apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Microprocessor controlled welding apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Microprocessor controlled welding apparatus will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1483252