Electrical feed and control circuit for the pump piston of a spr

Details Electrical feed and control circuit for the pump piston of a spr Electrical feed and control circuit for the pump piston of a spr

1982-09-23

1985-05-14

Eisenzopf, Reinhard J.

Electricity: electrical systems and devices

Control circuits for electromagnetic devices

Systems for magnetizing, demagnetizing, or controlling the...

361156, 361205, 361235, 323327, H01H 4732

Patent

active

045176205

ABSTRACT:
An electrical feed and control circuit for a drive arrangement of the pump piston of a spray gun which comprises a coil and an oscillating armature, employs an input for connection to an alternating current network, an output leading to the oscillating armature coil, a half-wave suppression circuit optionally connectible by way of a transfer switch, a phase-angle control circuit connectible and disconnectible by the transfer switch in common with the half-wave suppression circuit, the phase-angle circuit including a timing element comprising a fixed resistor and a capacitor, and a second phase-angle circuit -having a timing element containing a variable resistor. In one switch position of the switch, the current path extends through the second phase-angle circuit and in the other switch position extends through the half-wave suppression circuit and the first phase-angle circuit so that the phase-angle is variable in the one switch position whereas, in the other switch position a fixed phase angle is provided and the stroke frequency of the pump piston is cut in half.

REFERENCES:
patent: 3614543 (1971-10-01), Dick
patent: 3893019 (1975-07-01), King et al.
"Triggerless Phase Control Circuit for Sensitive Gate Triacs", RCA Technical Notes, RCA TN No. 715, Jun. 1967.
Tietze et al., "Halbleiter-Schaltungstechnik", Springer, Verlag, Berlin, Heidelberg, New York, 1971, pp. 572-581.

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