Constant current drive circuit with reduced transient recovery t

Details Constant current drive circuit with reduced transient recovery t Constant current drive circuit with reduced transient recovery t

1988-08-22

1989-11-07

Mottola, Steven

Amplifiers

With semiconductor amplifying device

Including current mirror amplifier

330263, 330264, H03F 326

Patent

active

048795240

ABSTRACT:
One of the input and output terminals of a current amplifier is coupled via a threshold conduction device to a drive circuit input terminal and the other of the input and output terminals is coupled via the conduction path of an output transistor to an output terminal of the drive circuit. A further amplifier, coupled to the threshold conduction device, provides a low impedance drive signal for the control electrode of the output transistor for biasing the output transistor to produce an output current proportional to an input current applied to the drive circuit input terminal and for enhancing the transient recovery time of the drive circuit for abrupt changes in output voltage at the output terminal.

REFERENCES:
patent: 4591804 (1986-05-01), van Tuijl
Gray & Meyer, Analysis and Design of Analog Integrated Circuits, Second Edition, John Wiley & Sons, 1984, pp. 234, 242 and 245.

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