초록 ▼

A voltage switching device operable by an electric power source comprises a gas discharge panel that includes opposing first and second electrodes and gas discharge cells therebetween. Resistors are connected between the power source and the respective first electrodes and switching means are connec

A voltage switching device operable by an electric power source comprises a gas discharge panel that includes opposing first and second electrodes and gas discharge cells therebetween. Resistors are connected between the power source and the respective first electrodes and switching means are connected between the power source and the second electrodes. In consideration of the power source terminal voltage and of the firing voltage of the gas discharge cells, the resistance values of the resistors are determined so as to prevent the gas discharge from spreading over the entire area of each gas discharge cell.

대표청구항 ▼

A voltage switch device operable by a main electric power source and providing a voltage between a first and second terminal, which comprises: a first substrate; a second substrate; a group of first electrode means on one surface of said first substrate; a group of second electrode means on one surf

A voltage switch device operable by a main electric power source and providing a voltage between a first and second terminal, which comprises: a first substrate; a second substrate; a group of first electrode means on one surface of said first substrate; a group of second electrode means on one surface of said second substrate, said first and second substrates having their outer edges hermetically sealed with said first electrode means disposed opposite to said second electrode means across a gap for having an ionizable gas introduced therein so that a plurality of control gas discharge cells having a substantially common firing voltage are formed at predetermined positions where said first electrode means face said second electrode means; a plurality of resistors having first ends respectively connected to said first electrode means and second ends adapted for connection to said first terminal; and a plurality of switching means having first ends respectively connected to said second electrode means and second ends adapted for connection to said second terminal, said plurality of control discharge cells being divided into a plurality of groups, each of said plurality of groups including a plurality of subgroups, said second electrode means constituting said discharge cells included in said subgroups being connected to said first ends of mutually different ones of said switching means, said control discharge cells formed of one of said first electrode means belonging to mutually different ones of said groups.