G - Physics
01
J
G01J 1/44 (2006.01)
Patent
CA 2351518
A photodiode detection circuit using a transimpedance amplifier circuit is disclosed. Overload current from the photodiode is diverted away from the amplifier to a voltage supply, e.g. ground, through an overload protection diode connected in series with the photodiode. A differential structure is also disclosed.
L'invention concerne un circuit de détection à photodiode, utilisant un circuit amplificateur de transimpédance. Un courant de surcharge provenant de la photodiode est dévié à partir d'une tension d'alimentation, par exemple la terre, par l'intermédiaire d'une diode de protection contre les surcharges, montée en série avec la photodiode. L'invention concerne également une structure différentielle.
Bangs Joakim
Filippi Raymond
Thompson John
Ericsson Canada Patent Group
Telefonaktiebolaget Lm Ericsson
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