Amplifiers – Combined with automatic amplifier disabling switch means
Patent
1980-09-10
1982-12-28
Mullins, James B.
Amplifiers
Combined with automatic amplifier disabling switch means
330254, 330255, 330265, 330267, H03G 334, H03F 330
Patent
active
043664423
ABSTRACT:
An amplifier is disclosed having a differential amplifier circuit, a current mirror circuit, a bias circuit and first and second single ended push-pull (SEPP) circuits connected in parallel to each other between a power source and earth. The first SEPP circuit includes a pair of diode-connected complementary transistors whose emitters are connected together and connected to the amplifier circuit. The second SEPP circuit includes a pair of diode-connected complementary transistors whose emitters are electrically insulated from those of the first SEPP circuit and connected to an output terminal of the amplifier. When a muting switch is opened, the supply of currents to the bias circuit is shut off, causing the first and second SEPP circuits to become unactuated and thereby attenuating an output signal from the output terminal of the amplifier.
REFERENCES:
patent: 3760288 (1973-09-01), Leonard
patent: 3867709 (1975-02-01), Seki et al.
patent: 4176323 (1979-11-01), Odell
patent: 4219781 (1980-08-01), Naokaua
Mullins James B.
Tokyo Shibaura Denki Kabushiki Kaisha
LandOfFree
Amplifier with muting circuit does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Amplifier with muting circuit, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Amplifier with muting circuit will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1339574