H - Electricity – 03 – F
Patent
H - Electricity
03
F
H03F 1/34 (2006.01) H03F 1/30 (2006.01) H03F 3/343 (2006.01)
Patent
CA 2065635
A transistor direct-coupled amplifier includes a positive-phase direct-coupled amplifier circuit, a second transistor, and a low-pass filter. The positive-phase direct-coupled amplifier circuit uses a base of a first transistor as an input terminal. The second transistor has a collector connected to the input terminal of the positive-phase direct-coupled amplifier circuit and an emitter connected to a reference voltage source, and the second transistor is complementary with the first transistor. A low-pass filter receives an output from the positive-phase direct-coupled amplifier circuit as an input, and the low-pass filter is connected to feed back an output to a base of the second transistor.
L'invention est un amplificateur à transistor à couplage direct comportant un circuit amplificateur à couplage direct à phase positive, un second transistor et un filtre passe-bas. Le circuit amplificateur à couplage direct à phase positive utilise la base d'un premier transistor comme borne d'entrée. Le collecteur d'un second transistor est connecté à borne d'entrée du circuit amplificateur à couplage direct à phase positive et l'émetteur est connecté à une source de tension de référence; le second transistor est installé en montage complémentaire avec le premier. Le filtre passe-bas reçoit le signal de sortie du circuit amplificateur à couplage direct à phase positive; sa sortie est connectée à la base du second transistor.
Corporation Nec
Smart & Biggar
LandOfFree
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