Power supply device for ICP sensor based on program control constant-current source

The utility model relates to an ICP (Inductively Coupled Plasma) sensor, and particularly relates to a constant-current-source ICP sensor. The power supply device for an ICP sensor based on a program control constant-current source comprises: an MCU control circuit, which is connected to a voltage c...

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Bibliographische Detailangaben
Hauptverfasser:	DENG HONGHAI, SONG JIEFENG
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	CONTROL OR REGULATING SYSTEMS IN GENERAL CONTROLLING FUNCTIONAL ELEMENTS OF SUCH SYSTEMS MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS ORELEMENTS PHYSICS REGULATING SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
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Beschreibung
Zusammenfassung:	The utility model relates to an ICP (Inductively Coupled Plasma) sensor, and particularly relates to a constant-current-source ICP sensor. The power supply device for an ICP sensor based on a program control constant-current source comprises: an MCU control circuit, which is connected to a voltage controlled current source via a digital analog conversion circuit, the voltage controlled current is connected with the ICP sensor. The power supply device in the utility model is advantaged by realizing program control current and satisfying requirement of each frequency band.