Electricity: power supply or regulation systems – Remote sensing
Patent
1975-08-07
1977-03-15
Pellinen, A. D.
Electricity: power supply or regulation systems
Remote sensing
323 22T, 323 23, G05F 152, G05F 156
Patent
active
040126870
ABSTRACT:
An adjustable series regulated high voltage power supply having a high slew rate is capable of providing relatively low output voltages. This capability is provided by the use of a unique coupling circuit between the control voltage amplifier for the supply and the series pass tubes. This coupling circuit provides a high negative voltage offset in order to accommodate the operating characteristics of the high voltage tubes by the use of a differential driver amplifier. The differential amplifier has inverting and non-inverting inputs. A constant bias is applied to the inverting input to establish a constant current through a voltage divider network having a tap coupled to the non-inverting input of the amplifier. The divider is coupled from the plate of the control amplifier to the output circuit of the supply. By selecting the values of the resistors in the voltage divider, the necessary voltage drop is obtained. A common collector amplifier provides bias for the cathodes of the series pass tubes with respect to their grids.
REFERENCES:
patent: 3458801 (1969-07-01), Polson
patent: 3581187 (1971-05-01), Grady
patent: 3599081 (1971-08-01), Bryndza
patent: 3772606 (1973-11-01), Waehner
E. I. Du Pont de Nemours and Company
Pellinen A. D.
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