Oscillators – Relaxation oscillators
Patent
1975-07-02
1977-03-08
Shoop, William M.
Oscillators
Relaxation oscillators
331113A, H02M 7537
Patent
active
040114953
ABSTRACT:
High voltage arrangement for an image intensifier with automatic brightness control, comprising a transistor oscillator including a transformer having a feedback winding, a voltage multiplier connected to the transformer and a control circuit, the control circuit including an auxiliary winding of said transformer connected in series with said feedback winding, and a control transistor connected as current source, the control transistor having its collector-emitter circuit connected through one or more diodes to said auxiliary winding.
REFERENCES:
patent: 3067378 (1962-12-01), Paynter
patent: 3694659 (1972-09-01), Ramsay et al.
N. V Optische Industrie "De Oude Delft"
Shoop William M.
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