Switch apparatus and testing apparatus
AssigneeAdvantest Corporation
InventorSatoshi KOYAMA
Life of this patent
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Abstract
Provided is a switch apparatus which electrically connects or disconnects across a first terminal and a second terminal, the switch apparatus including a plurality of main switches connected in series between the first terminal and the second terminal, a first sensing buffer unit to which a first voltage at the first terminal is input and which outputs a first sensing voltage in accordance with the first voltage, and a bias circuit which divides, according to a number of the plurality of main switches, a potential difference between a voltage in accordance with a second voltage at the second terminal and the first sensing voltage into voltages and applies each of the voltages divided to a corresponding one of the plurality of main switches.
Claims14
A switch apparatus which electrically connects or disconnects across a first terminal and a second terminal, the switch apparatus comprising:
- a plurality of main switches connected in series between the first terminal and the second terminal;
- a first sensing buffer unit to which a first voltage at the first terminal is input and which outputs a first sensing voltage in accordance with the first voltage;
- and
- a bias circuit which divides, according to a number of the plurality of main switches, a potential difference between a voltage in accordance with a second voltage at the second terminal and the first sensing voltage into voltages and applies each of the voltages divided, to a corresponding one of the plurality of main switches.
Dependencies are inferred from the claim text.