FREQUENCY-MODULATED GENERATOR Russian patent published in 2007 - IPC H03C3/22 

FIELD: radio engineering, possible use as source of oscillations with controlled frequency in radio-transmitting devices, measuring equipment.

SUBSTANCE: frequency-modulated generator contains auto-generator, enabling transistor, first resistor, loading resistor, first capacitor, stabilitron, second capacitor, first branch of oscillation contour, consisting of serially connected third capacitor, inductance coil, voltage-controlled capacitor, quartz resonator, second, third, fourth resistors, second branch of oscillation contour, containing fourth and fifth capacitor, control circuit, consisting of control signal source, sixth capacitor, sixth resistor, additional control circuit, consisting of decoupling cascade transformer and seventh capacitor, while primary winding of transformer through decoupling cascade is connected to output of control signal source.

EFFECT: decreased level of parasitic amplitude modulation.

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