Single stage balanced voltage amplifier
OwnerChi Ming John Laminventor
Life of this patent
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Abstract
A balanced voltage amplifier is disclosed as comprising a single stage containing three pairs of vacuum tube triodes configured to amplify two input signals (+INPUT, −INPUT) and to generate two output signals (+OUTPUT, −OUTPUT). The balanced voltage amplifier offers high voltage gain, wide bandwidth and low output impedance. Local feedback may be applied between the outputs and the second pair of triodes. Overall feedback may be applied between the outputs and the first pair of triodes. If local or overall feedback is used, it will further broaden the bandwidth, lower the output impedance and improve the overall balancing.
Claims14
A single stage balanced voltage amplifier containing at least a first, a second and a third pair of vacuum tube triodes for amplifying two input signals and generating two output signals, wherein outputs of said first pair of triodes taken from the plates are fed to the cathodes of said second pair of triodes, further including a plurality of resistors to set up a pre-determined DC biasing voltage at the grid of said second pair of triodes, and wherein bypass capacitors are connected from the grid of said second pair of triodes to ground.
A single stage balanced voltage amplifier containing at least a first, a second and a third pair of vacuum tube triodes for amplifying two input signals and generating two output signals, wherein said input signals are fed to the grids of said first pair of vacuum tube triodes, and a grid resistor is connected to ground on each triode to maintain proper DC biasing, and wherein outputs of said second pair of triodes taken from the plates are fed to the cathodes of said third pair of triodes via two series resistors.
A single stage balanced voltage amplifier containing at least a first, a second and a third pair of vacuum tube triodes for amplifying two input signals and generating two output signals, and wherein local feedback is applied between the outputs of said third pair of triodes and the grids of said second pair of triodes.
A single stage balanced voltage amplifier containing at least a first, a second and a third pair of vacuum tube triodes for amplifying two input signals and generating two output signals, and wherein overall feedback is applied between the outputs of the third pair of triodes and the crossed cathodes of said first pair of triodes.
Dependencies are inferred from the claim text.