Switch circuit, mass spectrometer, and control method for switch circuit

To provide a switch circuit in which ON/OFF control can be realized even in a state where high voltage is not applied, and high voltage can be completely lowered to the ground. Provided is a switch circuit that includes plural MOS switches connected in series in such a manner that the source of one...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	KADOI RYO, SUGIYAMA YOSHIKAZU
Format:	Patent
Sprache:	eng
Schlagworte:	BASIC ELECTRIC ELEMENTS BASIC ELECTRONIC CIRCUITRY ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS ELECTRICITY PULSE TECHNIQUE
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Beschreibung
Zusammenfassung:	To provide a switch circuit in which ON/OFF control can be realized even in a state where high voltage is not applied, and high voltage can be completely lowered to the ground. Provided is a switch circuit that includes plural MOS switches connected in series in such a manner that the source of one element is connected to the drain of another between high voltage and a system ground and that switches a connection state between the high voltage and the system ground, the switch circuit including: a MOS switch 101 the source of which is connected to the system ground among the plural MOS switches; a MOS switch 102 the source of which is connected to the drain of the MOS switch 101 in a shared manner and the drain of which is connected to the high voltage side among the plural MOS switches; a MOS switch 103 the drain of which is connected to the gate of the MOS switch 102 in a shared manner; and a resistor 104 that is connected in parallel between the gate and the source of the MOS switch 102.