H - Electricity – 03 – F
Patent
H - Electricity
03
F
330/16
H03F 3/26 (2006.01) H03F 1/02 (2006.01) H03F 3/30 (2006.01)
Patent
CA 1085471
AUDIO FREQUENCY POWER AMPLIFIER ABSTRACT OF THE DISCLOSURE An audio frequency power amplifier wherein an input signal is applied to respective input electrodes of a pair of transistors of the same conductivity type to produce an output signal at an output electrode of one of the pair of transistors. A common electrode of the one transistor is connected with an output electrode of the other transistor and a power from a first D.C. power supply is supplied to the junction thereof through a diode while a power is supplied to a common electrode of the other transistor from a second D.C. pwoer supply having a higher voltage than that of the first D.C. power supply. The other transistor and the diode are alternately rendered conductive and non-conductive in response to the signal level of the input signal, a capacitor is connected to the input electrode of the other transistor, which capacitor is charged during the turn-off of the other transistor whereby the charge is supplied to the other transistor upon turning on of the other transistor to shorten a rise time.
271594
Amada Nobutaka
Baba Tatsuo
Nakagaki Harushige
Sampei Tohru
Gowling Lafleur Henderson Llp
Hitachi Ltd.
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