Miscellaneous active electrical nonlinear devices – circuits – and – Specific identifiable device – circuit – or system – With specific source of supply or bias voltage
Patent
1994-12-30
1998-06-23
Callahan, Timothy P.
Miscellaneous active electrical nonlinear devices, circuits, and
Specific identifiable device, circuit, or system
With specific source of supply or bias voltage
327 73, 327563, 360 67, 360113, 330260, G11B 502, H03F 345
Patent
active
057709688
ABSTRACT:
An innovative differential amplifier circuit, which can control the midpoint potential of a load which does not itself have any midpoint connection. This is achieved by using a proxy load element in parallel with the primary load. The proxy load is of much higher impedance value than the primary load, and does have a center tap. The potential of the center tap of the mirrored load is used for a feedback connection to a control loop which regulates the output to both the primary load and the proxy load.
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Callahan Timothy P.
Carlson David V.
Galanthay Theodore E.
Jorgenson Lisa K.
SGS-Thomson Microelectronics Inc.
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