Electrical circuit for absolute position measuring device

Details Electrical circuit for absolute position measuring device Electrical circuit for absolute position measuring device

1981-12-07

1984-09-04

Miller, Stanley D.

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

307311, 307590, G06G 712, H03K 1756

Patent

active

044699581

ABSTRACT:
An improved apparatus for powering electrical components in an absolute position measuring device of the type including a coded scale and a scanning unit for reading the coded scale, wherein the scanning unit contains a code generator having a plurality of electrical components such as light-emitting diodes. The disclosed apparatus includes a capacitor connected in parallel with the components and a switching element, such as a transistor, connected in series with the components and in parallel with the capacitor. The switching element is responsive to a switching pulse of defined duration and voltage and it selectively applies a supply voltage to and interrupts the supply voltage from the electrical components.

REFERENCES:
patent: 3986144 (1976-10-01), Russo
patent: 4031417 (1977-06-01), Wesner
patent: 4075512 (1978-02-01), Rast, Jr. et al.
patent: 4190836 (1980-02-01), Kumura et al.
patent: 4291412 (1981-09-01), Imazeki

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