Oscillation circuit driven alternately by two different square w

Details Oscillation circuit driven alternately by two different square w Oscillation circuit driven alternately by two different square w

1997-10-17

1999-08-24

Kinkead, Arnold

Oscillators

Shock excited resonant circuit

With keying means of the active element type

331 47, 315291, 315DIG5, 363 41, H05B 3702, H05B 4129

Patent

active

059429534

ABSTRACT:
A circuit arrangement is provided with a controlled switch which is controlled by means of a periodic switching signal for operating an oscillation circuit at a frequency f, and with a control circuit for generating the periodic switching signal. The control circuit comprises a pulse width generator for generating a periodic square wave signal with a half cycle duration which is adjustable in steps of a value T and which has a value of at least t. The circuit arrangement is characterized in that, with 2*(t+N1*T)<1/f<2*(t+(N1+1)*T) in which N1 is an integer number, the periodic switching signal is built up from a repetitive chain of square wave signals with a repetition cycle which comprises n1 half cycles of a duration t+N1*T and n2 half cycles of a duration t+N2*T, wherein N2 is >N1 and is an integer number.

REFERENCES:
patent: 5298836 (1994-03-01), Backmund et al.

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