Abstimmeinrichtung für einen Radiowellenempfänger mit in Drucktechnik ausgeführten Wicklungen
The tuner includes several electrically variable capacitors (varicap). Calibration is carried out by memorising appropriate information in a digital type memory. Inductors are realised by a printing procedure. Calibration is carried out by correcting a voltage applied to the varicaps starting from t...
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| Zusammenfassung: | The tuner includes several electrically variable capacitors (varicap). Calibration is carried out by memorising appropriate information in a digital type memory. Inductors are realised by a printing procedure. Calibration is carried out by correcting a voltage applied to the varicaps starting from the memorised digital information converted by D-A converters. The memorised digital information represents differential values of the tuning voltages w.r.t. a voltage value applied to a varicap circuit of a local oscillator. The inductors are formed on a printed circuit. |
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