Oscillator circuit of card tester

The utility model discloses an oscillator circuit of a card tester, which comprises a diode V1 electrically connected with a terminal TP1, the diode V1 is electrically connected with a capacitor C1, a resistor R1 and a resistor R2 through an inductor L2, the capacitor C1 and the resistor R1 are elec...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	CUI QINGTAO, MA MINGYUN
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	BASIC ELECTRONIC CIRCUITRY EARTH DRILLING EARTH DRILLING, e.g. DEEP DRILLING ELECTRICITY FIXED CONSTRUCTIONS MINING OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS PULSE TECHNIQUE
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Beschreibung
Zusammenfassung:	The utility model discloses an oscillator circuit of a card tester, which comprises a diode V1 electrically connected with a terminal TP1, the diode V1 is electrically connected with a capacitor C1, a resistor R1 and a resistor R2 through an inductor L2, the capacitor C1 and the resistor R1 are electrically connected with an emitting electrode of a triode V2, a collector electrode of the triode V2 is electrically connected with an analog ground terminal AGNG, a base electrode of the triode V2 is electrically connected with the resistor R2, the resistor R3 and the resistor R4, the resistor R2 is electrically connected with the resistor R3 and the resistor R4, and the resistor R2 is electrically connected with the resistor R3 and the resistor R4. The resistor R3 and the resistor R4 are electrically connected with the analog ground end AGNG, the resistor R4 is electrically connected with the resistor R6, the capacitors C4, C41 and C42 and the capacitors C5, C51 and C52 through the capacitor C3, and the resistor