Shaker table amplifier

Details Shaker table amplifier Shaker table amplifier

1986-04-23

1987-10-13

LaRoche, Eugene R.

Oscillators

Electromechanical resonator

73664, 318128, G01M 700, H02K 3300, H02P 500

Patent

active

047001488

ABSTRACT:
A solid state amplifier for driving a shaker is described. The amplifier is comprised of a circuit which generates a pulse-width modulated drive signal for driving an armature of a shaker. The circuit includes an oscillator, power supply, wave-shaping generator, error detection network, comparator modulator and drive amplifiers. The oscillator generates a base waveform which is shaped by the wave-shaping generator. This signal is compared with error signals and the resulting signal is used to provide the pulse-width modulated driving signal to the shaker.

REFERENCES:
patent: 3486094 (1969-12-01), Zane
patent: 4309675 (1982-01-01), Rabe
patent: 4577164 (1986-03-01), Grib

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