Continuous duty circuitry for high speed switching of current fr

Details Continuous duty circuitry for high speed switching of current fr Continuous duty circuitry for high speed switching of current fr

1990-07-19

1991-09-10

Miller, Stanley D.

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

307254, 307475, 307451, 307270, H03K 190175, H03K 1760, H03K 19094

Patent

active

050476564

ABSTRACT:
A high speed current switch circuit comprises two sets of transistors, with each set containing a transconductance multiplier pair. These transistor sets alternate in operation to steer the current from a continuous-output constant current source either to an external load or to an internal dummy load. The circuit design allows switching of currents on the order of 80 milliamps using low-power, low-cost components. The circuit has high input impedance, low output impedance, and provides very fast switching times. The circuit can operate in either pulsed or continuous duty modes without damage and can operate with a short-circuited load.

REFERENCES:
patent: 4227095 (1980-10-01), Bazil
patent: 4616142 (1986-10-01), Upadhyay et al.
patent: 4780688 (1988-10-01), Groom
patent: 4866312 (1989-09-01), Kearney et al.
patent: 4883992 (1989-11-01), Koglin et al.

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