Signal amplifier for a signal recording device with magnetic def

Details Signal amplifier for a signal recording device with magnetic def Signal amplifier for a signal recording device with magnetic def

1982-09-08

1984-11-20

Blum, Theodore M.

Electric lamp and discharge devices: systems

Cathode ray tube circuits

Cathode-ray deflections circuits

330297, H01J 2970, H01J 2976

Patent

active

044841116

ABSTRACT:
The signal amplifier is used for amplification of an input signal with varying control amplitude, particularly in the field of electromedicine. The amplifier contains at least two amplification paths which supply current to the deflection coil of the recording device. In the first path is arranged a first individual amplifier which is designed as a voltage-controlled current source. It is rated for a lower control range. This lower range is chosen to be the range in which the input signal lies during relatively long periods of time. In the second path is arranged a second individual amplifier. This amplifier is designed as a voltage amplifier. It is rated for a higher control range and supplies the deflection coil with peak current during relatively short periods of time.

REFERENCES:
patent: 3725727 (1973-04-01), Waehner
patent: 3733514 (1973-05-01), Garuts
patent: 4023069 (1977-05-01), Peer
patent: 4164688 (1979-08-01), Cushing

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