Integrated circuit oscillator with high voltage feedback network

Details Integrated circuit oscillator with high voltage feedback network Integrated circuit oscillator with high voltage feedback network

1994-03-31

1995-10-10

Mis, David

Oscillators

Solid state active element oscillator

Transistors

331 68, 331 74, 331108C, 331DIG3, 345179, H03B 512

Patent

active

054574340

ABSTRACT:
An oscillator circuit having an amplifier and feedback loop multiplies a generated signal by appropriate selection of capacitance ratios in the feedback loop. In order to isolate this multiplied, high voltage signal, a voltage divider is used to isolate the high voltage portion from the input and output (I/O) of an integrated circuit oscillator core. The multiplied voltage creates a high voltage signal suitable for stylus signal transmission. The divided, and relatively low, voltage is used in the feedback path to stabilize the oscillator core's operation.

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Sedra, A. S.; "Microelectronic Circuits"; Saunders College Publishing Harcourt Brace College Publishers; no month, 1991; pp. 855-860.

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